CbC/CbC_gcc: gcc/sese.c annotate

annotate gcc/sese.c @ 63:b7f97abdc517 gcc-4.6-20100522

update gcc from gcc-4.5.0 to gcc-4.6

author	ryoma <e075725@ie.u-ryukyu.ac.jp>
date	Mon, 24 May 2010 12:47:05 +0900
parents	77e2b8dfacca
children	f6334be47118

rev	line source
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1 /* Single entry single exit control flow regions.
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	2 Copyright (C) 2008, 2009, 2010
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	3 Free Software Foundation, Inc.
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	4 Contributed by Jan Sjodin <jan.sjodin@amd.com> and
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	5 Sebastian Pop <sebastian.pop@amd.com>.
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	6
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	7 This file is part of GCC.
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	8
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	9 GCC is free software; you can redistribute it and/or modify
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	10 it under the terms of the GNU General Public License as published by
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	11 the Free Software Foundation; either version 3, or (at your option)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	12 any later version.
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	13
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	14 GCC is distributed in the hope that it will be useful,
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	15 but WITHOUT ANY WARRANTY; without even the implied warranty of
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	17 GNU General Public License for more details.
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	18
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	19 You should have received a copy of the GNU General Public License
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	20 along with GCC; see the file COPYING3. If not see
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	21 <http://www.gnu.org/licenses/>. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	22
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	23 #include "config.h"
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	24 #include "system.h"
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	25 #include "coretypes.h"
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	26 #include "tm.h"
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	27 #include "ggc.h"
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	28 #include "tree.h"
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	29 #include "rtl.h"
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	30 #include "basic-block.h"
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	31 #include "diagnostic.h"
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	32 #include "tree-pretty-print.h"
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	33 #include "tree-flow.h"
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	34 #include "toplev.h"
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	35 #include "tree-dump.h"
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	36 #include "timevar.h"
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	37 #include "cfgloop.h"
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	38 #include "tree-chrec.h"
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	39 #include "tree-data-ref.h"
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	40 #include "tree-scalar-evolution.h"
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	41 #include "tree-pass.h"
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	42 #include "domwalk.h"
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	43 #include "value-prof.h"
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	44 #include "pointer-set.h"
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	45 #include "gimple.h"
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	46 #include "sese.h"
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	47
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	48 /* Print to stderr the element ELT. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	49
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	50 static void
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	51 debug_rename_elt (rename_map_elt elt)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	52 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	53 fprintf (stderr, "(");
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	54 print_generic_expr (stderr, elt->old_name, 0);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	55 fprintf (stderr, ", ");
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	56 print_generic_expr (stderr, elt->expr, 0);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	57 fprintf (stderr, ")\n");
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	58 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	59
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	60 /* Helper function for debug_rename_map. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	61
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	62 static int
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	63 debug_rename_map_1 (void *slot, void s ATTRIBUTE_UNUSED)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	64 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	65 struct rename_map_elt_s entry = (struct rename_map_elt_s ) *slot;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	66 debug_rename_elt (entry);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	67 return 1;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	68 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	69
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	70 /* Print to stderr all the elements of MAP. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	71
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	72 void
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	73 debug_rename_map (htab_t map)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	74 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	75 htab_traverse (map, debug_rename_map_1, NULL);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	76 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	77
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	78 /* Computes a hash function for database element ELT. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	79
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	80 hashval_t
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	81 rename_map_elt_info (const void *elt)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	82 {
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	83 return SSA_NAME_VERSION (((const struct rename_map_elt_s *) elt)->old_name);
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	84 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	85
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	86 /* Compares database elements E1 and E2. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	87
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	88 int
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	89 eq_rename_map_elts (const void e1, const void e2)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	90 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	91 const struct rename_map_elt_s elt1 = (const struct rename_map_elt_s ) e1;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	92 const struct rename_map_elt_s elt2 = (const struct rename_map_elt_s ) e2;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	93
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	94 return (elt1->old_name == elt2->old_name);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	95 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	96
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	97
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	98
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	99 /* Print to stderr the element ELT. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	100
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	101 static void
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	102 debug_ivtype_elt (ivtype_map_elt elt)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	103 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	104 fprintf (stderr, "(%s, ", elt->cloog_iv);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	105 print_generic_expr (stderr, elt->type, 0);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	106 fprintf (stderr, ")\n");
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	107 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	108
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	109 /* Helper function for debug_ivtype_map. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	110
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	111 static int
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	112 debug_ivtype_map_1 (void *slot, void s ATTRIBUTE_UNUSED)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	113 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	114 struct ivtype_map_elt_s entry = (struct ivtype_map_elt_s ) *slot;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	115 debug_ivtype_elt (entry);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	116 return 1;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	117 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	118
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	119 /* Print to stderr all the elements of MAP. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	120
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	121 void
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	122 debug_ivtype_map (htab_t map)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	123 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	124 htab_traverse (map, debug_ivtype_map_1, NULL);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	125 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	126
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	127 /* Computes a hash function for database element ELT. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	128
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	129 hashval_t
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	130 ivtype_map_elt_info (const void *elt)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	131 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	132 return htab_hash_pointer (((const struct ivtype_map_elt_s *) elt)->cloog_iv);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	133 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	134
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	135 /* Compares database elements E1 and E2. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	136
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	137 int
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	138 eq_ivtype_map_elts (const void e1, const void e2)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	139 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	140 const struct ivtype_map_elt_s elt1 = (const struct ivtype_map_elt_s ) e1;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	141 const struct ivtype_map_elt_s elt2 = (const struct ivtype_map_elt_s ) e2;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	142
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	143 return (elt1->cloog_iv == elt2->cloog_iv);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	144 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	145
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	146
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	147
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	148 /* Record LOOP as occuring in REGION. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	149
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	150 static void
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	151 sese_record_loop (sese region, loop_p loop)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	152 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	153 if (sese_contains_loop (region, loop))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	154 return;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	155
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	156 bitmap_set_bit (SESE_LOOPS (region), loop->num);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	157 VEC_safe_push (loop_p, heap, SESE_LOOP_NEST (region), loop);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	158 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	159
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	160 /* Build the loop nests contained in REGION. Returns true when the
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	161 operation was successful. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	162
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	163 void
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	164 build_sese_loop_nests (sese region)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	165 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	166 unsigned i;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	167 basic_block bb;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	168 struct loop loop0, loop1;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	169
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	170 FOR_EACH_BB (bb)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	171 if (bb_in_sese_p (bb, region))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	172 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	173 struct loop *loop = bb->loop_father;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	174
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	175 /* Only add loops if they are completely contained in the SCoP. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	176 if (loop->header == bb
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	177 && bb_in_sese_p (loop->latch, region))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	178 sese_record_loop (region, loop);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	179 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	180
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	181 /* Make sure that the loops in the SESE_LOOP_NEST are ordered. It
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	182 can be the case that an inner loop is inserted before an outer
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	183 loop. To avoid this, semi-sort once. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	184 for (i = 0; VEC_iterate (loop_p, SESE_LOOP_NEST (region), i, loop0); i++)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	185 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	186 if (VEC_length (loop_p, SESE_LOOP_NEST (region)) == i + 1)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	187 break;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	188
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	189 loop1 = VEC_index (loop_p, SESE_LOOP_NEST (region), i + 1);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	190 if (loop0->num > loop1->num)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	191 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	192 VEC_replace (loop_p, SESE_LOOP_NEST (region), i, loop1);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	193 VEC_replace (loop_p, SESE_LOOP_NEST (region), i + 1, loop0);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	194 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	195 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	196 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	197
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	198 /* For a USE in BB, if BB is outside REGION, mark the USE in the
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	199 LIVEOUTS set. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	200
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	201 static void
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	202 sese_build_liveouts_use (sese region, bitmap liveouts, basic_block bb,
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	203 tree use)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	204 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	205 unsigned ver;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	206 basic_block def_bb;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	207
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	208 if (TREE_CODE (use) != SSA_NAME)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	209 return;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	210
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	211 ver = SSA_NAME_VERSION (use);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	212 def_bb = gimple_bb (SSA_NAME_DEF_STMT (use));
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	213
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	214 if (!def_bb
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	215 \|\| !bb_in_sese_p (def_bb, region)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	216 \|\| bb_in_sese_p (bb, region))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	217 return;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	218
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	219 bitmap_set_bit (liveouts, ver);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	220 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	221
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	222 /* Marks for rewrite all the SSA_NAMES defined in REGION and that are
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	223 used in BB that is outside of the REGION. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	224
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	225 static void
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	226 sese_build_liveouts_bb (sese region, bitmap liveouts, basic_block bb)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	227 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	228 gimple_stmt_iterator bsi;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	229 edge e;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	230 edge_iterator ei;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	231 ssa_op_iter iter;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	232 use_operand_p use_p;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	233
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	234 FOR_EACH_EDGE (e, ei, bb->succs)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	235 for (bsi = gsi_start_phis (e->dest); !gsi_end_p (bsi); gsi_next (&bsi))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	236 sese_build_liveouts_use (region, liveouts, bb,
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	237 PHI_ARG_DEF_FROM_EDGE (gsi_stmt (bsi), e));
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	238
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	239 for (bsi = gsi_start_bb (bb); !gsi_end_p (bsi); gsi_next (&bsi))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	240 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	241 gimple stmt = gsi_stmt (bsi);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	242
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	243 if (is_gimple_debug (stmt))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	244 continue;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	245
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	246 FOR_EACH_SSA_USE_OPERAND (use_p, stmt, iter, SSA_OP_ALL_USES)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	247 sese_build_liveouts_use (region, liveouts, bb, USE_FROM_PTR (use_p));
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	248 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	249 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	250
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	251 /* For a USE in BB, return true if BB is outside REGION and it's not
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	252 in the LIVEOUTS set. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	253
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	254 static bool
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	255 sese_bad_liveouts_use (sese region, bitmap liveouts, basic_block bb,
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	256 tree use)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	257 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	258 unsigned ver;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	259 basic_block def_bb;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	260
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	261 if (TREE_CODE (use) != SSA_NAME)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	262 return false;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	263
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	264 ver = SSA_NAME_VERSION (use);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	265
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	266 /* If it's in liveouts, the variable will get a new PHI node, and
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	267 the debug use will be properly adjusted. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	268 if (bitmap_bit_p (liveouts, ver))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	269 return false;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	270
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	271 def_bb = gimple_bb (SSA_NAME_DEF_STMT (use));
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	272
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	273 if (!def_bb
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	274 \|\| !bb_in_sese_p (def_bb, region)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	275 \|\| bb_in_sese_p (bb, region))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	276 return false;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	277
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	278 return true;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	279 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	280
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	281 /* Reset debug stmts that reference SSA_NAMES defined in REGION that
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	282 are not marked as liveouts. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	283
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	284 static void
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	285 sese_reset_debug_liveouts_bb (sese region, bitmap liveouts, basic_block bb)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	286 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	287 gimple_stmt_iterator bsi;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	288 ssa_op_iter iter;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	289 use_operand_p use_p;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	290
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	291 for (bsi = gsi_start_bb (bb); !gsi_end_p (bsi); gsi_next (&bsi))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	292 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	293 gimple stmt = gsi_stmt (bsi);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	294
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	295 if (!is_gimple_debug (stmt))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	296 continue;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	297
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	298 FOR_EACH_SSA_USE_OPERAND (use_p, stmt, iter, SSA_OP_ALL_USES)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	299 if (sese_bad_liveouts_use (region, liveouts, bb,
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	300 USE_FROM_PTR (use_p)))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	301 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	302 gimple_debug_bind_reset_value (stmt);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	303 update_stmt (stmt);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	304 break;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	305 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	306 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	307 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	308
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	309 /* Build the LIVEOUTS of REGION: the set of variables defined inside
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	310 and used outside the REGION. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	311
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	312 static void
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	313 sese_build_liveouts (sese region, bitmap liveouts)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	314 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	315 basic_block bb;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	316
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	317 FOR_EACH_BB (bb)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	318 sese_build_liveouts_bb (region, liveouts, bb);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	319 if (MAY_HAVE_DEBUG_INSNS)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	320 FOR_EACH_BB (bb)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	321 sese_reset_debug_liveouts_bb (region, liveouts, bb);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	322 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	323
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	324 /* Builds a new SESE region from edges ENTRY and EXIT. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	325
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	326 sese
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	327 new_sese (edge entry, edge exit)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	328 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	329 sese region = XNEW (struct sese_s);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	330
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	331 SESE_ENTRY (region) = entry;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	332 SESE_EXIT (region) = exit;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	333 SESE_LOOPS (region) = BITMAP_ALLOC (NULL);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	334 SESE_LOOP_NEST (region) = VEC_alloc (loop_p, heap, 3);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	335 SESE_ADD_PARAMS (region) = true;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	336 SESE_PARAMS (region) = VEC_alloc (tree, heap, 3);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	337
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	338 return region;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	339 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	340
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	341 /* Deletes REGION. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	342
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	343 void
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	344 free_sese (sese region)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	345 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	346 if (SESE_LOOPS (region))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	347 SESE_LOOPS (region) = BITMAP_ALLOC (NULL);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	348
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	349 VEC_free (tree, heap, SESE_PARAMS (region));
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	350 VEC_free (loop_p, heap, SESE_LOOP_NEST (region));
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	351
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	352 XDELETE (region);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	353 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	354
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	355 /* Add exit phis for USE on EXIT. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	356
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	357 static void
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	358 sese_add_exit_phis_edge (basic_block exit, tree use, edge false_e, edge true_e)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	359 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	360 gimple phi = create_phi_node (use, exit);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	361
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	362 create_new_def_for (gimple_phi_result (phi), phi,
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	363 gimple_phi_result_ptr (phi));
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	364 add_phi_arg (phi, use, false_e, UNKNOWN_LOCATION);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	365 add_phi_arg (phi, use, true_e, UNKNOWN_LOCATION);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	366 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	367
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	368 /* Insert in the block BB phi nodes for variables defined in REGION
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	369 and used outside the REGION. The code generation moves REGION in
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	370 the else clause of an "if (1)" and generates code in the then
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	371 clause that is at this point empty:
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	372
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	373 \| if (1)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	374 \| empty;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	375 \| else
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	376 \| REGION;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	377 */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	378
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	379 void
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	380 sese_insert_phis_for_liveouts (sese region, basic_block bb,
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	381 edge false_e, edge true_e)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	382 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	383 unsigned i;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	384 bitmap_iterator bi;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	385 bitmap liveouts = BITMAP_ALLOC (NULL);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	386
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	387 update_ssa (TODO_update_ssa);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	388
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	389 sese_build_liveouts (region, liveouts);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	390 EXECUTE_IF_SET_IN_BITMAP (liveouts, 0, i, bi)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	391 sese_add_exit_phis_edge (bb, ssa_name (i), false_e, true_e);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	392 BITMAP_FREE (liveouts);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	393
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	394 update_ssa (TODO_update_ssa);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	395 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	396
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	397 /* Get the definition of NAME before the SESE. Keep track of the
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	398 basic blocks that have been VISITED in a bitmap. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	399
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	400 static tree
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	401 get_vdef_before_sese (sese region, tree name, sbitmap visited)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	402 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	403 unsigned i;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	404 gimple stmt = SSA_NAME_DEF_STMT (name);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	405 basic_block def_bb = gimple_bb (stmt);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	406
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	407 if (!def_bb \|\| !bb_in_sese_p (def_bb, region))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	408 return name;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	409
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	410 if (TEST_BIT (visited, def_bb->index))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	411 return NULL_TREE;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	412
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	413 SET_BIT (visited, def_bb->index);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	414
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	415 switch (gimple_code (stmt))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	416 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	417 case GIMPLE_PHI:
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	418 for (i = 0; i < gimple_phi_num_args (stmt); i++)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	419 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	420 tree arg = gimple_phi_arg_def (stmt, i);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	421 tree res;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	422
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	423 if (gimple_bb (SSA_NAME_DEF_STMT (arg))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	424 && def_bb->index == gimple_bb (SSA_NAME_DEF_STMT (arg))->index)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	425 continue;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	426
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	427 res = get_vdef_before_sese (region, arg, visited);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	428 if (res)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	429 return res;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	430 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	431 return NULL_TREE;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	432
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	433 case GIMPLE_ASSIGN:
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	434 case GIMPLE_CALL:
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	435 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	436 use_operand_p use_p = gimple_vuse_op (stmt);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	437 tree use = USE_FROM_PTR (use_p);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	438
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	439 if (def_bb->index == gimple_bb (SSA_NAME_DEF_STMT (use))->index)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	440 RESET_BIT (visited, def_bb->index);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	441
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	442 return get_vdef_before_sese (region, use, visited);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	443 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	444
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	445 default:
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	446 return NULL_TREE;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	447 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	448 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	449
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	450 /* Adjust a virtual phi node PHI that is placed at the end of the
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	451 generated code for SCOP:
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	452
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	453 \| if (1)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	454 \| generated code from REGION;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	455 \| else
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	456 \| REGION;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	457
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	458 The FALSE_E edge comes from the original code, TRUE_E edge comes
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	459 from the code generated for the SCOP. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	460
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	461 static void
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	462 sese_adjust_vphi (sese region, gimple phi, edge true_e)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	463 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	464 unsigned i;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	465
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	466 gcc_assert (gimple_phi_num_args (phi) == 2);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	467
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	468 for (i = 0; i < gimple_phi_num_args (phi); i++)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	469 if (gimple_phi_arg_edge (phi, i) == true_e)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	470 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	471 tree true_arg, false_arg, before_scop_arg;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	472 sbitmap visited;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	473
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	474 true_arg = gimple_phi_arg_def (phi, i);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	475 if (!SSA_NAME_IS_DEFAULT_DEF (true_arg))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	476 return;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	477
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	478 false_arg = gimple_phi_arg_def (phi, i == 0 ? 1 : 0);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	479 if (SSA_NAME_IS_DEFAULT_DEF (false_arg))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	480 return;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	481
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	482 visited = sbitmap_alloc (last_basic_block);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	483 sbitmap_zero (visited);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	484 before_scop_arg = get_vdef_before_sese (region, false_arg, visited);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	485 gcc_assert (before_scop_arg != NULL_TREE);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	486 SET_PHI_ARG_DEF (phi, i, before_scop_arg);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	487 sbitmap_free (visited);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	488 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	489 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	490
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	491 /* Returns the expression associated to OLD_NAME in MAP. */
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	492
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	493 static tree
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	494 get_rename (htab_t map, tree old_name)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	495 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	496 struct rename_map_elt_s tmp;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	497 PTR *slot;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	498
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	499 gcc_assert (TREE_CODE (old_name) == SSA_NAME);
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	500 tmp.old_name = old_name;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	501 slot = htab_find_slot (map, &tmp, NO_INSERT);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	502
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	503 if (slot && *slot)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	504 return ((rename_map_elt) *slot)->expr;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	505
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	506 return old_name;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	507 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	508
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	509 /* Register in MAP the rename tuple (OLD_NAME, EXPR). */
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	510
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	511 void
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	512 set_rename (htab_t map, tree old_name, tree expr)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	513 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	514 struct rename_map_elt_s tmp;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	515 PTR *slot;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	516
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	517 if (old_name == expr)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	518 return;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	519
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	520 tmp.old_name = old_name;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	521 slot = htab_find_slot (map, &tmp, INSERT);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	522
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	523 if (!slot)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	524 return;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	525
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	526 if (*slot)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	527 free (*slot);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	528
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	529 *slot = new_rename_map_elt (old_name, expr);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	530 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	531
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	532 /* Renames the expression T following the tuples (OLD_NAME, EXPR) in
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	533 the rename map M. Returns the expression T after renaming. */
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	534
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	535 static tree
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	536 rename_variables_in_expr (htab_t m, tree t)
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	537 {
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	538 if (!t)
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	539 return t;
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	540
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	541 if (TREE_CODE (t) == SSA_NAME)
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	542 return get_rename (m, t);
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	543
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	544 switch (TREE_CODE_LENGTH (TREE_CODE (t)))
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	545 {
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	546 case 3:
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	547 TREE_OPERAND (t, 2) = rename_variables_in_expr (m, TREE_OPERAND (t, 2));
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	548
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	549 case 2:
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	550 TREE_OPERAND (t, 1) = rename_variables_in_expr (m, TREE_OPERAND (t, 1));
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	551
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	552 case 1:
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	553 TREE_OPERAND (t, 0) = rename_variables_in_expr (m, TREE_OPERAND (t, 0));
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	554
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	555 default:
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	556 return t;
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	557 }
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	558 }
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	559
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	560 /* Renames all the loop->nb_iterations expressions following the
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	561 tuples (OLD_NAME, EXPR) in RENAME_MAP. */
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	562
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	563 void
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	564 rename_nb_iterations (htab_t rename_map)
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	565 {
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	566 loop_iterator li;
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	567 struct loop *loop;
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	568
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	569 FOR_EACH_LOOP (li, loop, 0)
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	570 loop->nb_iterations = rename_variables_in_expr (rename_map,
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	571 loop->nb_iterations);
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	572 }
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	573
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	574 /* Renames all the parameters of SESE following the tuples (OLD_NAME,
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	575 EXPR) in RENAME_MAP. */
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	576
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	577 void
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	578 rename_sese_parameters (htab_t rename_map, sese region)
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	579 {
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	580 int i;
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	581 tree p;
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	582
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	583 for (i = 0; VEC_iterate (tree, SESE_PARAMS (region), i, p); i++)
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	584 VEC_replace (tree, SESE_PARAMS (region), i,
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	585 rename_variables_in_expr (rename_map, p));
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	586 }
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	587
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	588 /* Adjusts the phi nodes in the block BB for variables defined in
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	589 SCOP_REGION and used outside the SCOP_REGION. The code generation
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	590 moves SCOP_REGION in the else clause of an "if (1)" and generates
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	591 code in the then clause:
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	592
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	593 \| if (1)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	594 \| generated code from REGION;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	595 \| else
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	596 \| REGION;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	597
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	598 To adjust the phi nodes after the condition, the RENAME_MAP is
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	599 used. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	600
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	601 void
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	602 sese_adjust_liveout_phis (sese region, htab_t rename_map, basic_block bb,
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	603 edge false_e, edge true_e)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	604 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	605 gimple_stmt_iterator si;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	606
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	607 for (si = gsi_start_phis (bb); !gsi_end_p (si); gsi_next (&si))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	608 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	609 unsigned i;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	610 unsigned false_i = 0;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	611 gimple phi = gsi_stmt (si);
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	612 tree res = gimple_phi_result (phi);
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	613
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	614 if (!is_gimple_reg (res))
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	615 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	616 sese_adjust_vphi (region, phi, true_e);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	617 continue;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	618 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	619
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	620 for (i = 0; i < gimple_phi_num_args (phi); i++)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	621 if (gimple_phi_arg_edge (phi, i) == false_e)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	622 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	623 false_i = i;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	624 break;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	625 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	626
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	627 for (i = 0; i < gimple_phi_num_args (phi); i++)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	628 if (gimple_phi_arg_edge (phi, i) == true_e)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	629 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	630 tree old_name = gimple_phi_arg_def (phi, false_i);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	631 tree expr = get_rename (rename_map, old_name);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	632 gimple_seq stmts;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	633
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	634 gcc_assert (old_name != expr);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	635
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	636 if (TREE_CODE (expr) != SSA_NAME
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	637 && is_gimple_reg (old_name))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	638 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	639 tree type = TREE_TYPE (old_name);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	640 tree var = create_tmp_var (type, "var");
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	641
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	642 expr = build2 (MODIFY_EXPR, type, var, expr);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	643 expr = force_gimple_operand (expr, &stmts, true, NULL);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	644 gsi_insert_seq_on_edge_immediate (true_e, stmts);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	645 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	646
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	647 SET_PHI_ARG_DEF (phi, i, expr);
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	648 set_rename (rename_map, old_name, res);
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	649 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	650 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	651 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	652
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	653 /* Rename the SSA_NAMEs used in STMT and that appear in MAP. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	654
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	655 static void
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	656 rename_variables_in_stmt (gimple stmt, htab_t map, gimple_stmt_iterator *insert_gsi)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	657 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	658 ssa_op_iter iter;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	659 use_operand_p use_p;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	660
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	661 FOR_EACH_SSA_USE_OPERAND (use_p, stmt, iter, SSA_OP_ALL_USES)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	662 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	663 tree use = USE_FROM_PTR (use_p);
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	664 tree expr, type_use, type_expr;
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	665 gimple_seq stmts;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	666
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	667 if (TREE_CODE (use) != SSA_NAME)
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	668 continue;
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	669
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	670 expr = get_rename (map, use);
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	671 if (use == expr)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	672 continue;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	673
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	674 type_use = TREE_TYPE (use);
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	675 type_expr = TREE_TYPE (expr);
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	676
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	677 if (type_use != type_expr
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	678 \|\| (TREE_CODE (expr) != SSA_NAME
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	679 && is_gimple_reg (use)))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	680 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	681 tree var;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	682
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	683 if (is_gimple_debug (stmt))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	684 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	685 if (gimple_debug_bind_p (stmt))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	686 gimple_debug_bind_reset_value (stmt);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	687 else
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	688 gcc_unreachable ();
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	689
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	690 break;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	691 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	692
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	693 var = create_tmp_var (type_use, "var");
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	694
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	695 if (type_use != type_expr)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	696 expr = fold_convert (type_use, expr);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	697
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	698 expr = build2 (MODIFY_EXPR, type_use, var, expr);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	699 expr = force_gimple_operand (expr, &stmts, true, NULL);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	700 gsi_insert_seq_before (insert_gsi, stmts, GSI_SAME_STMT);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	701 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	702
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	703 replace_exp (use_p, expr);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	704 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	705
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	706 update_stmt (stmt);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	707 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	708
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	709 /* Returns true if NAME is a parameter of SESE. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	710
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	711 static bool
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	712 is_parameter (sese region, tree name)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	713 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	714 int i;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	715 tree p;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	716
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	717 for (i = 0; VEC_iterate (tree, SESE_PARAMS (region), i, p); i++)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	718 if (p == name)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	719 return true;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	720
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	721 return false;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	722 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	723
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	724 /* Returns true if NAME is an induction variable. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	725
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	726 static bool
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	727 is_iv (tree name)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	728 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	729 return gimple_code (SSA_NAME_DEF_STMT (name)) == GIMPLE_PHI;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	730 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	731
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	732 static void expand_scalar_variables_stmt (gimple, basic_block, sese,
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	733 htab_t, gimple_stmt_iterator *);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	734 static tree
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	735 expand_scalar_variables_expr (tree, tree, enum tree_code, tree, basic_block,
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	736 sese, htab_t, gimple_stmt_iterator *);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	737
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	738 static tree
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	739 expand_scalar_variables_call (gimple stmt, basic_block bb, sese region,
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	740 htab_t map, gimple_stmt_iterator *gsi)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	741 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	742 int i, nargs = gimple_call_num_args (stmt);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	743 VEC (tree, gc) *args = VEC_alloc (tree, gc, nargs);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	744 tree fn_type = TREE_TYPE (gimple_call_fn (stmt));
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	745 tree fn = gimple_call_fndecl (stmt);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	746 tree call_expr, var, lhs;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	747 gimple call;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	748
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	749 for (i = 0; i < nargs; i++)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	750 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	751 tree arg = gimple_call_arg (stmt, i);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	752 tree t = TREE_TYPE (arg);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	753
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	754 var = create_tmp_var (t, "var");
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	755 arg = expand_scalar_variables_expr (t, arg, TREE_CODE (arg), NULL,
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	756 bb, region, map, gsi);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	757 arg = build2 (MODIFY_EXPR, t, var, arg);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	758 arg = force_gimple_operand_gsi (gsi, arg, true, NULL,
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	759 true, GSI_SAME_STMT);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	760 VEC_quick_push (tree, args, arg);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	761 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	762
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	763 lhs = gimple_call_lhs (stmt);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	764 var = create_tmp_var (TREE_TYPE (lhs), "var");
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	765 call_expr = build_call_vec (fn_type, fn, args);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	766 call = gimple_build_call_from_tree (call_expr);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	767 var = make_ssa_name (var, call);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	768 gimple_call_set_lhs (call, var);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	769 gsi_insert_before (gsi, call, GSI_SAME_STMT);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	770
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	771 return var;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	772 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	773
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	774 /* Copies at GSI all the scalar computations on which the ssa_name OP0
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	775 depends on in the SESE: these are all the scalar variables used in
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	776 the definition of OP0, that are defined outside BB and still in the
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	777 SESE, i.e. not a parameter of the SESE. The expression that is
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	778 returned contains only induction variables from the generated code:
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	779 MAP contains the induction variables renaming mapping, and is used
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	780 to translate the names of induction variables. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	781
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	782 static tree
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	783 expand_scalar_variables_ssa_name (tree type, tree op0, basic_block bb,
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	784 sese region, htab_t map,
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	785 gimple_stmt_iterator *gsi)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	786 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	787 gimple def_stmt;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	788 tree new_op;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	789
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	790 if (is_parameter (region, op0)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	791 \|\| is_iv (op0))
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	792 return fold_convert (type, get_rename (map, op0));
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	793
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	794 def_stmt = SSA_NAME_DEF_STMT (op0);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	795
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	796 /* Check whether we already have a rename for OP0. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	797 new_op = get_rename (map, op0);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	798
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	799 if (new_op != op0
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	800 && gimple_bb (SSA_NAME_DEF_STMT (new_op)) == bb)
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	801 return fold_convert (type, new_op);
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	802
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	803 if (gimple_bb (def_stmt) == bb)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	804 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	805 /* If the defining statement is in the basic block already
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	806 we do not need to create a new expression for it, we
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	807 only need to ensure its operands are expanded. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	808 expand_scalar_variables_stmt (def_stmt, bb, region, map, gsi);
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	809 return fold_convert (type, new_op);
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	810 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	811 else
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	812 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	813 if (!gimple_bb (def_stmt)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	814 \|\| !bb_in_sese_p (gimple_bb (def_stmt), region))
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	815 return fold_convert (type, new_op);
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	816
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	817 switch (gimple_code (def_stmt))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	818 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	819 case GIMPLE_ASSIGN:
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	820 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	821 tree var0 = gimple_assign_rhs1 (def_stmt);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	822 enum tree_code subcode = gimple_assign_rhs_code (def_stmt);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	823 tree var1 = gimple_assign_rhs2 (def_stmt);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	824 tree type = gimple_expr_type (def_stmt);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	825
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	826 return expand_scalar_variables_expr (type, var0, subcode, var1, bb,
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	827 region, map, gsi);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	828 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	829
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	830 case GIMPLE_CALL:
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	831 return expand_scalar_variables_call (def_stmt, bb, region, map, gsi);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	832
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	833 default:
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	834 gcc_unreachable ();
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	835 return new_op;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	836 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	837 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	838 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	839
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	840 /* Copies at GSI all the scalar computations on which the expression
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	841 OP0 CODE OP1 depends on in the SESE: these are all the scalar
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	842 variables used in OP0 and OP1, defined outside BB and still defined
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	843 in the SESE, i.e. not a parameter of the SESE. The expression that
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	844 is returned contains only induction variables from the generated
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	845 code: MAP contains the induction variables renaming mapping, and is
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	846 used to translate the names of induction variables. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	847
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	848 static tree
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	849 expand_scalar_variables_expr (tree type, tree op0, enum tree_code code,
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	850 tree op1, basic_block bb, sese region,
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	851 htab_t map, gimple_stmt_iterator *gsi)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	852 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	853 if (TREE_CODE_CLASS (code) == tcc_constant
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	854 \|\| TREE_CODE_CLASS (code) == tcc_declaration)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	855 return op0;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	856
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	857 /* For data references we have to duplicate also its memory
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	858 indexing. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	859 if (TREE_CODE_CLASS (code) == tcc_reference)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	860 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	861 switch (code)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	862 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	863 case REALPART_EXPR:
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	864 case IMAGPART_EXPR:
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	865 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	866 tree op = TREE_OPERAND (op0, 0);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	867 tree res = expand_scalar_variables_expr
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	868 (type, op, TREE_CODE (op), NULL, bb, region, map, gsi);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	869 return build1 (code, type, res);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	870 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	871
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	872 case INDIRECT_REF:
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	873 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	874 tree old_name = TREE_OPERAND (op0, 0);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	875 tree expr = expand_scalar_variables_ssa_name
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	876 (type, old_name, bb, region, map, gsi);
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	877
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	878 if (TREE_CODE (expr) != SSA_NAME
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	879 && is_gimple_reg (old_name))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	880 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	881 tree type = TREE_TYPE (old_name);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	882 tree var = create_tmp_var (type, "var");
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	883
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	884 expr = build2 (MODIFY_EXPR, type, var, expr);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	885 expr = force_gimple_operand_gsi (gsi, expr, true, NULL,
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	886 true, GSI_SAME_STMT);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	887 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	888
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	889 return fold_build1 (code, type, expr);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	890 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	891
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	892 case ARRAY_REF:
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	893 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	894 tree op00 = TREE_OPERAND (op0, 0);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	895 tree op01 = TREE_OPERAND (op0, 1);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	896 tree op02 = TREE_OPERAND (op0, 2);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	897 tree op03 = TREE_OPERAND (op0, 3);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	898 tree base = expand_scalar_variables_expr
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	899 (TREE_TYPE (op00), op00, TREE_CODE (op00), NULL, bb, region,
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	900 map, gsi);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	901 tree subscript = expand_scalar_variables_expr
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	902 (TREE_TYPE (op01), op01, TREE_CODE (op01), NULL, bb, region,
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	903 map, gsi);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	904
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	905 return build4 (ARRAY_REF, type, base, subscript, op02, op03);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	906 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	907
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	908 case COMPONENT_REF:
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	909 return op0;
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	910
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	911 default:
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	912 /* The above cases should catch everything. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	913 gcc_unreachable ();
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	914 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	915 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	916
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	917 if (TREE_CODE_CLASS (code) == tcc_unary)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	918 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	919 tree op0_type = TREE_TYPE (op0);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	920 enum tree_code op0_code = TREE_CODE (op0);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	921 tree op0_expr = expand_scalar_variables_expr (op0_type, op0, op0_code,
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	922 NULL, bb, region, map, gsi);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	923
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	924 return fold_build1 (code, type, op0_expr);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	925 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	926
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	927 if (TREE_CODE_CLASS (code) == tcc_binary
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	928 \|\| TREE_CODE_CLASS (code) == tcc_comparison)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	929 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	930 tree op0_type = TREE_TYPE (op0);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	931 enum tree_code op0_code = TREE_CODE (op0);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	932 tree op0_expr = expand_scalar_variables_expr (op0_type, op0, op0_code,
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	933 NULL, bb, region, map, gsi);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	934 tree op1_type = TREE_TYPE (op1);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	935 enum tree_code op1_code = TREE_CODE (op1);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	936 tree op1_expr = expand_scalar_variables_expr (op1_type, op1, op1_code,
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	937 NULL, bb, region, map, gsi);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	938
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	939 return fold_build2 (code, type, op0_expr, op1_expr);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	940 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	941
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	942 if (code == SSA_NAME)
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	943 return expand_scalar_variables_ssa_name (type, op0, bb, region, map, gsi);
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	944
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	945 if (code == ADDR_EXPR)
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	946 {
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	947 tree op00 = TREE_OPERAND (op0, 0);
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	948
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	949 if (handled_component_p (op00)
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	950 && TREE_CODE (op00) == ARRAY_REF)
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	951 {
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	952 tree e = expand_scalar_variables_expr (TREE_TYPE (op00), op00,
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	953 TREE_CODE (op00),
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	954 NULL, bb, region, map, gsi);
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	955 return fold_build1 (code, TREE_TYPE (op0), e);
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	956 }
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	957
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	958 return op0;
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	959 }
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	960
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	961 gcc_unreachable ();
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	962 return NULL;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	963 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	964
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	965 /* Copies at the beginning of BB all the scalar computations on which
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	966 STMT depends on in the SESE: these are all the scalar variables used
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	967 in STMT, defined outside BB and still defined in the SESE, i.e. not a
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	968 parameter of the SESE. The expression that is returned contains
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	969 only induction variables from the generated code: MAP contains the
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	970 induction variables renaming mapping, and is used to translate the
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	971 names of induction variables. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	972
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	973 static void
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	974 expand_scalar_variables_stmt (gimple stmt, basic_block bb, sese region,
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	975 htab_t map, gimple_stmt_iterator *gsi)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	976 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	977 ssa_op_iter iter;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	978 use_operand_p use_p;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	979
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	980 FOR_EACH_SSA_USE_OPERAND (use_p, stmt, iter, SSA_OP_ALL_USES)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	981 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	982 tree use = USE_FROM_PTR (use_p);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	983 tree type = TREE_TYPE (use);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	984 enum tree_code code = TREE_CODE (use);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	985 tree use_expr;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	986
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	987 if (!is_gimple_reg (use))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	988 continue;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	989
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	990 /* Don't expand USE if we already have a rename for it. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	991 use_expr = get_rename (map, use);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	992 if (use_expr != use)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	993 continue;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	994
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	995 use_expr = expand_scalar_variables_expr (type, use, code, NULL, bb,
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	996 region, map, gsi);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	997 use_expr = fold_convert (type, use_expr);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	998
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	999 if (use_expr == use)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1000 continue;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1001
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1002 if (is_gimple_debug (stmt))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1003 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1004 if (gimple_debug_bind_p (stmt))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1005 gimple_debug_bind_reset_value (stmt);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1006 else
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1007 gcc_unreachable ();
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1008
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1009 break;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1010 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1011
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1012 if (TREE_CODE (use_expr) != SSA_NAME)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1013 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1014 tree var = create_tmp_var (type, "var");
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1015
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1016 use_expr = build2 (MODIFY_EXPR, type, var, use_expr);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1017 use_expr = force_gimple_operand_gsi (gsi, use_expr, true, NULL,
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1018 true, GSI_SAME_STMT);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1019 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1020
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1021 replace_exp (use_p, use_expr);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1022 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1023
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1024 update_stmt (stmt);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1025 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1026
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1027 /* Copies at the beginning of BB all the scalar computations on which
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1028 BB depends on in the SESE: these are all the scalar variables used
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1029 in BB, defined outside BB and still defined in the SESE, i.e. not a
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1030 parameter of the SESE. The expression that is returned contains
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1031 only induction variables from the generated code: MAP contains the
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1032 induction variables renaming mapping, and is used to translate the
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1033 names of induction variables. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1034
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1035 static void
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1036 expand_scalar_variables (basic_block bb, sese region, htab_t map)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1037 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1038 gimple_stmt_iterator gsi;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1039
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1040 for (gsi = gsi_after_labels (bb); !gsi_end_p (gsi);)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1041 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1042 gimple stmt = gsi_stmt (gsi);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1043 expand_scalar_variables_stmt (stmt, bb, region, map, &gsi);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1044 gsi_next (&gsi);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1045 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1046 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1047
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1048 /* Rename all the SSA_NAMEs from block BB according to the MAP. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1049
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1050 static void
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1051 rename_variables (basic_block bb, htab_t map)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1052 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1053 gimple_stmt_iterator gsi;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1054 gimple_stmt_iterator insert_gsi = gsi_start_bb (bb);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1055
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1056 for (gsi = gsi_after_labels (bb); !gsi_end_p (gsi); gsi_next (&gsi))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1057 rename_variables_in_stmt (gsi_stmt (gsi), map, &insert_gsi);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1058 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1059
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1060 /* Remove condition from BB. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1061
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1062 static void
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1063 remove_condition (basic_block bb)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1064 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1065 gimple last = last_stmt (bb);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1066
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1067 if (last && gimple_code (last) == GIMPLE_COND)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1068 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1069 gimple_stmt_iterator gsi = gsi_last_bb (bb);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1070 gsi_remove (&gsi, true);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1071 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1072 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1073
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1074 /* Returns the first successor edge of BB with EDGE_TRUE_VALUE flag set. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1075
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1076 edge
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1077 get_true_edge_from_guard_bb (basic_block bb)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1078 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1079 edge e;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1080 edge_iterator ei;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1081
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1082 FOR_EACH_EDGE (e, ei, bb->succs)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1083 if (e->flags & EDGE_TRUE_VALUE)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1084 return e;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1085
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1086 gcc_unreachable ();
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1087 return NULL;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1088 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1089
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1090 /* Returns the first successor edge of BB with EDGE_TRUE_VALUE flag cleared. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1091
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1092 edge
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1093 get_false_edge_from_guard_bb (basic_block bb)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1094 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1095 edge e;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1096 edge_iterator ei;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1097
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1098 FOR_EACH_EDGE (e, ei, bb->succs)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1099 if (!(e->flags & EDGE_TRUE_VALUE))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1100 return e;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1101
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1102 gcc_unreachable ();
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1103 return NULL;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1104 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1105
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1106 /* Returns true when NAME is defined in LOOP. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1107
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1108 static bool
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1109 name_defined_in_loop_p (tree name, loop_p loop)
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1110 {
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1111 return !SSA_NAME_IS_DEFAULT_DEF (name)
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1112 && gimple_bb (SSA_NAME_DEF_STMT (name))->loop_father == loop;
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1113 }
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1114
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1115 /* Returns true when EXPR contains SSA_NAMEs defined in LOOP. */
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1116
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1117 static bool
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1118 expr_defined_in_loop_p (tree expr, loop_p loop)
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1119 {
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1120 switch (TREE_CODE_LENGTH (TREE_CODE (expr)))
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1121 {
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1122 case 3:
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1123 return expr_defined_in_loop_p (TREE_OPERAND (expr, 0), loop)
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1124 \|\| expr_defined_in_loop_p (TREE_OPERAND (expr, 1), loop)
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1125 \|\| expr_defined_in_loop_p (TREE_OPERAND (expr, 2), loop);
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1126
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1127 case 2:
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1128 return expr_defined_in_loop_p (TREE_OPERAND (expr, 0), loop)
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1129 \|\| expr_defined_in_loop_p (TREE_OPERAND (expr, 1), loop);
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1130
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1131 case 1:
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1132 return expr_defined_in_loop_p (TREE_OPERAND (expr, 0), loop);
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1133
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1134 case 0:
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1135 return TREE_CODE (expr) == SSA_NAME
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1136 && name_defined_in_loop_p (expr, loop);
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1137
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1138 default:
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1139 return false;
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1140 }
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1141 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1142
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1143 /* Returns the gimple statement that uses NAME outside the loop it is
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1144 defined in, returns NULL if there is no such loop close phi node.
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1145 An invariant of the loop closed SSA form is that the only use of a
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1146 variable, outside the loop it is defined in, is in the loop close
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1147 phi node that just follows the loop. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1148
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1149 static gimple
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1150 alive_after_loop (tree name)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1151 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1152 use_operand_p use_p;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1153 imm_use_iterator imm_iter;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1154 loop_p loop = gimple_bb (SSA_NAME_DEF_STMT (name))->loop_father;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1155
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1156 FOR_EACH_IMM_USE_FAST (use_p, imm_iter, name)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1157 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1158 gimple stmt = USE_STMT (use_p);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1159
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1160 if (gimple_code (stmt) == GIMPLE_PHI
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1161 && gimple_bb (stmt)->loop_father != loop)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1162 return stmt;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1163 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1164
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1165 return NULL;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1166 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1167
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1168 /* Return true if a close phi has not yet been inserted for the use of
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1169 variable NAME on the single exit of LOOP. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1170
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1171 static bool
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1172 close_phi_not_yet_inserted_p (loop_p loop, tree name)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1173 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1174 gimple_stmt_iterator psi;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1175 basic_block bb = single_exit (loop)->dest;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1176
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1177 for (psi = gsi_start_phis (bb); !gsi_end_p (psi); gsi_next (&psi))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1178 if (gimple_phi_arg_def (gsi_stmt (psi), 0) == name)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1179 return false;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1180
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1181 return true;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1182 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1183
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1184 /* A structure for passing parameters to add_loop_exit_phis. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1185
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1186 typedef struct alep {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1187 loop_p loop;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1188 VEC (rename_map_elt, heap) *new_renames;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1189 } *alep_p;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1190
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1191 /* Helper function for htab_traverse in insert_loop_close_phis. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1192
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1193 static int
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1194 add_loop_exit_phis (void *slot, void data)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1195 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1196 struct rename_map_elt_s *entry;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1197 alep_p a;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1198 loop_p loop;
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1199 tree expr, new_name, old_name;
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1200 bool def_in_loop_p, used_outside_p, need_close_phi_p;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1201 gimple old_close_phi;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1202
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1203 if (!slot \|\| !*slot \|\| !data)
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1204 return 1;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1205
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1206 entry = (struct rename_map_elt_s ) slot;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1207 a = (alep_p) data;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1208 loop = a->loop;
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1209 new_name = expr = entry->expr;
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1210 old_name = entry->old_name;
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1211
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1212 def_in_loop_p = expr_defined_in_loop_p (expr, loop);
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1213 if (!def_in_loop_p)
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1214 return 1;
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1215
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1216 /* Remove the old rename from the map when the expression is defined
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1217 in the loop that we're closing. */
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1218 free (*slot);
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1219 *slot = NULL;
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1220
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1221 if (TREE_CODE (expr) != SSA_NAME)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1222 return 1;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1223
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1224 old_close_phi = alive_after_loop (old_name);
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1225 used_outside_p = (old_close_phi != NULL);
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1226 need_close_phi_p = (used_outside_p
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1227 && close_phi_not_yet_inserted_p (loop, new_name));
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1228
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1229 /* Insert a loop close phi node. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1230 if (need_close_phi_p)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1231 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1232 basic_block bb = single_exit (loop)->dest;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1233 gimple phi = create_phi_node (new_name, bb);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1234 tree new_res = create_new_def_for (gimple_phi_result (phi), phi,
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1235 gimple_phi_result_ptr (phi));
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1236
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1237 add_phi_arg (phi, new_name, single_pred_edge (bb), UNKNOWN_LOCATION);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1238 VEC_safe_push (rename_map_elt, heap, a->new_renames,
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1239 new_rename_map_elt (gimple_phi_result (old_close_phi),
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1240 new_res));
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1241 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1242
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1243 return 1;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1244 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1245
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1246 /* Traverses MAP and removes from it all the tuples (OLD, NEW) where
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1247 NEW is defined in LOOP. Inserts on the exit of LOOP the close phi
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1248 node "RES = phi (NEW)" corresponding to "OLD_RES = phi (OLD)" in
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1249 the original code. Inserts in MAP the tuple (OLD_RES, RES). */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1250
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1251 void
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1252 insert_loop_close_phis (htab_t map, loop_p loop)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1253 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1254 int i;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1255 struct alep a;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1256 rename_map_elt elt;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1257
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1258 a.loop = loop;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1259 a.new_renames = VEC_alloc (rename_map_elt, heap, 3);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1260 update_ssa (TODO_update_ssa);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1261 htab_traverse (map, add_loop_exit_phis, &a);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1262 update_ssa (TODO_update_ssa);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1263
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1264 for (i = 0; VEC_iterate (rename_map_elt, a.new_renames, i, elt); i++)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1265 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1266 set_rename (map, elt->old_name, elt->expr);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1267 free (elt);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1268 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1269
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1270 VEC_free (rename_map_elt, heap, a.new_renames);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1271 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1272
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1273 /* Helper structure for htab_traverse in insert_guard_phis. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1274
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1275 struct igp {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1276 basic_block bb;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1277 edge true_edge, false_edge;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1278 htab_t before_guard;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1279 };
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1280
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1281 /* Return the default name that is before the guard. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1282
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1283 static tree
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1284 default_before_guard (htab_t before_guard, tree old_name)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1285 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1286 tree res = get_rename (before_guard, old_name);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1287
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1288 if (res == old_name)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1289 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1290 if (is_gimple_reg (res))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1291 return fold_convert (TREE_TYPE (res), integer_zero_node);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1292 return gimple_default_def (cfun, SSA_NAME_VAR (res));
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1293 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1294
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1295 return res;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1296 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1297
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1298 /* Prepares EXPR to be a good phi argument when the phi result is
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1299 RES. Insert needed statements on edge E. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1300
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1301 static tree
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1302 convert_for_phi_arg (tree expr, tree res, edge e)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1303 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1304 tree type = TREE_TYPE (res);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1305
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1306 if (TREE_TYPE (expr) != type)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1307 expr = fold_convert (type, expr);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1308
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1309 if (TREE_CODE (expr) != SSA_NAME
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1310 && !is_gimple_min_invariant (expr))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1311 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1312 tree var = create_tmp_var (type, "var");
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1313 gimple_seq stmts;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1314
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1315 expr = build2 (MODIFY_EXPR, type, var, expr);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1316 expr = force_gimple_operand (expr, &stmts, true, NULL);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1317 gsi_insert_seq_on_edge_immediate (e, stmts);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1318 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1319
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1320 return expr;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1321 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1322
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1323 /* Helper function for htab_traverse in insert_guard_phis. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1324
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1325 static int
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1326 add_guard_exit_phis (void *slot, void s)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1327 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1328 struct rename_map_elt_s entry = (struct rename_map_elt_s ) *slot;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1329 struct igp i = (struct igp ) s;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1330 basic_block bb = i->bb;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1331 edge true_edge = i->true_edge;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1332 edge false_edge = i->false_edge;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1333 tree res = entry->old_name;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1334 tree name1 = entry->expr;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1335 tree name2 = default_before_guard (i->before_guard, res);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1336 gimple phi;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1337
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1338 /* Nothing to be merged if the name before the guard is the same as
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1339 the one after. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1340 if (name1 == name2)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1341 return 1;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1342
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1343 name1 = convert_for_phi_arg (name1, res, true_edge);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1344 name2 = convert_for_phi_arg (name2, res, false_edge);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1345
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1346 phi = create_phi_node (res, bb);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1347 res = create_new_def_for (gimple_phi_result (phi), phi,
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1348 gimple_phi_result_ptr (phi));
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1349
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1350 add_phi_arg (phi, name1, true_edge, UNKNOWN_LOCATION);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1351 add_phi_arg (phi, name2, false_edge, UNKNOWN_LOCATION);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1352
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1353 entry->expr = res;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1354 *slot = entry;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1355 return 1;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1356 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1357
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1358 /* Iterate over RENAME_MAP and get tuples of the form (OLD, NAME1).
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1359 If there is a correspondent tuple (OLD, NAME2) in BEFORE_GUARD,
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1360 with NAME1 different than NAME2, then insert in BB the phi node:
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1361
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1362 \| RES = phi (NAME1 (on TRUE_EDGE), NAME2 (on FALSE_EDGE))"
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1363
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1364 if there is no tuple for OLD in BEFORE_GUARD, insert
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1365
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1366 \| RES = phi (NAME1 (on TRUE_EDGE),
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1367 \| DEFAULT_DEFINITION of NAME1 (on FALSE_EDGE))".
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1368
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1369 Finally register in RENAME_MAP the tuple (OLD, RES). */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1370
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1371 void
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1372 insert_guard_phis (basic_block bb, edge true_edge, edge false_edge,
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1373 htab_t before_guard, htab_t rename_map)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1374 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1375 struct igp i;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1376 i.bb = bb;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1377 i.true_edge = true_edge;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1378 i.false_edge = false_edge;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1379 i.before_guard = before_guard;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1380
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1381 update_ssa (TODO_update_ssa);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1382 htab_traverse (rename_map, add_guard_exit_phis, &i);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1383 update_ssa (TODO_update_ssa);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1384 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1385
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1386 /* Create a duplicate of the basic block BB. NOTE: This does not
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1387 preserve SSA form. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1388
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1389 static void
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1390 graphite_copy_stmts_from_block (basic_block bb, basic_block new_bb, htab_t map)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1391 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1392 gimple_stmt_iterator gsi, gsi_tgt;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1393
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1394 gsi_tgt = gsi_start_bb (new_bb);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1395 for (gsi = gsi_start_bb (bb); !gsi_end_p (gsi); gsi_next (&gsi))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1396 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1397 def_operand_p def_p;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1398 ssa_op_iter op_iter;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1399 gimple stmt = gsi_stmt (gsi);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1400 gimple copy;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1401
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1402 if (gimple_code (stmt) == GIMPLE_LABEL)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1403 continue;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1404
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1405 /* Create a new copy of STMT and duplicate STMT's virtual
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1406 operands. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1407 copy = gimple_copy (stmt);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1408 gsi_insert_after (&gsi_tgt, copy, GSI_NEW_STMT);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1409 mark_sym_for_renaming (gimple_vop (cfun));
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1410
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1411 maybe_duplicate_eh_stmt (copy, stmt);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1412 gimple_duplicate_stmt_histograms (cfun, copy, cfun, stmt);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1413
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1414 /* Create new names for all the definitions created by COPY and
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1415 add replacement mappings for each new name. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1416 FOR_EACH_SSA_DEF_OPERAND (def_p, copy, op_iter, SSA_OP_ALL_DEFS)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1417 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1418 tree old_name = DEF_FROM_PTR (def_p);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1419 tree new_name = create_new_def_for (old_name, copy, def_p);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1420 set_rename (map, old_name, new_name);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1421 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1422 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1423 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1424
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1425 /* Copies BB and includes in the copied BB all the statements that can
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1426 be reached following the use-def chains from the memory accesses,
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1427 and returns the next edge following this new block. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1428
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1429 edge
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1430 copy_bb_and_scalar_dependences (basic_block bb, sese region,
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1431 edge next_e, htab_t map)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1432 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1433 basic_block new_bb = split_edge (next_e);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1434
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1435 next_e = single_succ_edge (new_bb);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1436 graphite_copy_stmts_from_block (bb, new_bb, map);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1437 remove_condition (new_bb);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1438 remove_phi_nodes (new_bb);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1439 expand_scalar_variables (new_bb, region, map);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1440 rename_variables (new_bb, map);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1441
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1442 return next_e;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1443 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1444
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1445 /* Returns the outermost loop in SCOP that contains BB. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1446
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1447 struct loop *
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1448 outermost_loop_in_sese (sese region, basic_block bb)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1449 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1450 struct loop *nest;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1451
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1452 nest = bb->loop_father;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1453 while (loop_outer (nest)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1454 && loop_in_sese_p (loop_outer (nest), region))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1455 nest = loop_outer (nest);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1456
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1457 return nest;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1458 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1459
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1460 /* Sets the false region of an IF_REGION to REGION. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1461
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1462 void
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1463 if_region_set_false_region (ifsese if_region, sese region)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1464 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1465 basic_block condition = if_region_get_condition_block (if_region);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1466 edge false_edge = get_false_edge_from_guard_bb (condition);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1467 basic_block dummy = false_edge->dest;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1468 edge entry_region = SESE_ENTRY (region);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1469 edge exit_region = SESE_EXIT (region);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1470 basic_block before_region = entry_region->src;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1471 basic_block last_in_region = exit_region->src;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1472 void **slot = htab_find_slot_with_hash (current_loops->exits, exit_region,
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1473 htab_hash_pointer (exit_region),
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1474 NO_INSERT);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1475
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1476 entry_region->flags = false_edge->flags;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1477 false_edge->flags = exit_region->flags;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1478
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1479 redirect_edge_pred (entry_region, condition);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1480 redirect_edge_pred (exit_region, before_region);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1481 redirect_edge_pred (false_edge, last_in_region);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1482 redirect_edge_succ (false_edge, single_succ (dummy));
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1483 delete_basic_block (dummy);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1484
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1485 exit_region->flags = EDGE_FALLTHRU;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1486 recompute_all_dominators ();
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1487
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1488 SESE_EXIT (region) = false_edge;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1489
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1490 if (if_region->false_region)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1491 free (if_region->false_region);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1492 if_region->false_region = region;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1493
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1494 if (slot)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1495 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1496 struct loop_exit *loop_exit = GGC_CNEW (struct loop_exit);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1497
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1498 memcpy (loop_exit, ((struct loop_exit *) slot), sizeof (struct loop_exit));
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1499 htab_clear_slot (current_loops->exits, slot);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1500
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1501 slot = htab_find_slot_with_hash (current_loops->exits, false_edge,
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1502 htab_hash_pointer (false_edge),
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1503 INSERT);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1504 loop_exit->e = false_edge;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1505 *slot = loop_exit;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1506 false_edge->src->loop_father->exits->next = loop_exit;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1507 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1508 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1509
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1510 /* Creates an IFSESE with CONDITION on edge ENTRY. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1511
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1512 static ifsese
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1513 create_if_region_on_edge (edge entry, tree condition)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1514 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1515 edge e;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1516 edge_iterator ei;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1517 sese sese_region = XNEW (struct sese_s);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1518 sese true_region = XNEW (struct sese_s);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1519 sese false_region = XNEW (struct sese_s);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1520 ifsese if_region = XNEW (struct ifsese_s);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1521 edge exit = create_empty_if_region_on_edge (entry, condition);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1522
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1523 if_region->region = sese_region;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1524 if_region->region->entry = entry;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1525 if_region->region->exit = exit;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1526
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1527 FOR_EACH_EDGE (e, ei, entry->dest->succs)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1528 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1529 if (e->flags & EDGE_TRUE_VALUE)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1530 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1531 true_region->entry = e;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1532 true_region->exit = single_succ_edge (e->dest);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1533 if_region->true_region = true_region;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1534 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1535 else if (e->flags & EDGE_FALSE_VALUE)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1536 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1537 false_region->entry = e;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1538 false_region->exit = single_succ_edge (e->dest);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1539 if_region->false_region = false_region;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1540 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1541 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1542
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1543 return if_region;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1544 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1545
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1546 /* Moves REGION in a condition expression:
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1547 \| if (1)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1548 \| ;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1549 \| else
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1550 \| REGION;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1551 */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1552
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1553 ifsese
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1554 move_sese_in_condition (sese region)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1555 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1556 basic_block pred_block = split_edge (SESE_ENTRY (region));
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1557 ifsese if_region;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1558
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1559 SESE_ENTRY (region) = single_succ_edge (pred_block);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1560 if_region = create_if_region_on_edge (single_pred_edge (pred_block), integer_one_node);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1561 if_region_set_false_region (if_region, region);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1562
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1563 return if_region;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1564 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1565
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1566 /* Replaces the condition of the IF_REGION with CONDITION:
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1567 \| if (CONDITION)
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1568 \| true_region;
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1569 \| else
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1570 \| false_region;
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1571 */
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1572
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1573 void
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1574 set_ifsese_condition (ifsese if_region, tree condition)
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1575 {
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1576 sese region = if_region->region;
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1577 edge entry = region->entry;
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1578 basic_block bb = entry->dest;
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1579 gimple last = last_stmt (bb);
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1580 gimple_stmt_iterator gsi = gsi_last_bb (bb);
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1581 gimple cond_stmt;
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1582
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1583 gcc_assert (gimple_code (last) == GIMPLE_COND);
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1584
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1585 gsi_remove (&gsi, true);
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1586 gsi = gsi_last_bb (bb);
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1587 condition = force_gimple_operand_gsi (&gsi, condition, true, NULL,
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1588 false, GSI_NEW_STMT);
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1589 cond_stmt = gimple_build_cond_from_tree (condition, NULL_TREE, NULL_TREE);
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1590 gsi = gsi_last_bb (bb);
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1591 gsi_insert_after (&gsi, cond_stmt, GSI_NEW_STMT);
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1592 }
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	1593
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1594 /* Returns the scalar evolution of T in REGION. Every variable that
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1595 is not defined in the REGION is considered a parameter. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1596
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1597 tree
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1598 scalar_evolution_in_region (sese region, loop_p loop, tree t)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1599 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1600 gimple def;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1601 struct loop *def_loop;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1602 basic_block before = block_before_sese (region);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1603
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1604 if (TREE_CODE (t) != SSA_NAME
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1605 \|\| loop_in_sese_p (loop, region))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1606 return instantiate_scev (before, loop,
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1607 analyze_scalar_evolution (loop, t));
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1608
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1609 if (!defined_in_sese_p (t, region))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1610 return t;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1611
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1612 def = SSA_NAME_DEF_STMT (t);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1613 def_loop = loop_containing_stmt (def);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1614
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1615 if (loop_in_sese_p (def_loop, region))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1616 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1617 t = analyze_scalar_evolution (def_loop, t);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1618 def_loop = superloop_at_depth (def_loop, loop_depth (loop) + 1);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1619 t = compute_overall_effect_of_inner_loop (def_loop, t);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1620 return t;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1621 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1622 else
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1623 return instantiate_scev (before, loop, t);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: diff changeset	1624 }

Mercurial > hg > CbC > CbC_gcc

annotate gcc/sese.c @ 63:b7f97abdc517 gcc-4.6-20100522