CbC/CbC_gcc: gcc/ira-lives.c annotate

annotate gcc/ira-lives.c @ 111:04ced10e8804

gcc 7

author	kono
date	Fri, 27 Oct 2017 22:46:09 +0900
parents	f6334be47118
children	84e7813d76e9

rev	line source
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1 /* IRA processing allocno lives to build allocno live ranges.
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	2 Copyright (C) 2006-2017 Free Software Foundation, Inc.
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	3 Contributed by Vladimir Makarov <vmakarov@redhat.com>.
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	4
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	5 This file is part of GCC.
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	6
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	7 GCC is free software; you can redistribute it and/or modify it under
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	8 the terms of the GNU General Public License as published by the Free
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	9 Software Foundation; either version 3, or (at your option) any later
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	10 version.
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	11
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	15 for more details.
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	16
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	17 You should have received a copy of the GNU General Public License
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	18 along with GCC; see the file COPYING3. If not see
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	19 <http://www.gnu.org/licenses/>. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	20
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	21 #include "config.h"
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	22 #include "system.h"
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	23 #include "coretypes.h"
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	24 #include "backend.h"
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	25 #include "target.h"
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	26 #include "rtl.h"
04ced10e8804 gcc 7 kono parents: 67 diff changeset	27 #include "predict.h"
04ced10e8804 gcc 7 kono parents: 67 diff changeset	28 #include "df.h"
04ced10e8804 gcc 7 kono parents: 67 diff changeset	29 #include "memmodel.h"
04ced10e8804 gcc 7 kono parents: 67 diff changeset	30 #include "tm_p.h"
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	31 #include "insn-config.h"
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	32 #include "regs.h"
04ced10e8804 gcc 7 kono parents: 67 diff changeset	33 #include "ira.h"
04ced10e8804 gcc 7 kono parents: 67 diff changeset	34 #include "ira-int.h"
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	35 #include "sparseset.h"
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	36
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	37 /* The code in this file is similar to one in global but the code
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	38 works on the allocno basis and creates live ranges instead of
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	39 pseudo-register conflicts. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	40
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	41 /* Program points are enumerated by numbers from range
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	42 0..IRA_MAX_POINT-1. There are approximately two times more program
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	43 points than insns. Program points are places in the program where
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	44 liveness info can be changed. In most general case (there are more
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	45 complicated cases too) some program points correspond to places
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	46 where input operand dies and other ones correspond to places where
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	47 output operands are born. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	48 int ira_max_point;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	49
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	50 /* Arrays of size IRA_MAX_POINT mapping a program point to the allocno
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	51 live ranges with given start/finish point. */
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	52 live_range_t ira_start_point_ranges, ira_finish_point_ranges;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	53
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	54 /* Number of the current program point. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	55 static int curr_point;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	56
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	57 /* Point where register pressure excess started or -1 if there is no
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	58 register pressure excess. Excess pressure for a register class at
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	59 some point means that there are more allocnos of given register
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	60 class living at the point than number of hard-registers of the
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	61 class available for the allocation. It is defined only for
04ced10e8804 gcc 7 kono parents: 67 diff changeset	62 pressure classes. */
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	63 static int high_pressure_start_point[N_REG_CLASSES];
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	64
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	65 /* Objects live at current point in the scan. */
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	66 static sparseset objects_live;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	67
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	68 /* A temporary bitmap used in functions that wish to avoid visiting an allocno
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	69 multiple times. */
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	70 static sparseset allocnos_processed;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	71
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	72 /* Set of hard regs (except eliminable ones) currently live. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	73 static HARD_REG_SET hard_regs_live;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	74
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	75 /* The loop tree node corresponding to the current basic block. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	76 static ira_loop_tree_node_t curr_bb_node;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	77
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	78 /* The number of the last processed call. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	79 static int last_call_num;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	80 /* The number of last call at which given allocno was saved. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	81 static int *allocno_saved_at_call;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	82
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	83 /* The value of get_preferred_alternatives for the current instruction,
04ced10e8804 gcc 7 kono parents: 67 diff changeset	84 supplemental to recog_data. */
04ced10e8804 gcc 7 kono parents: 67 diff changeset	85 static alternative_mask preferred_alternatives;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	86
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	87 /* Record the birth of hard register REGNO, updating hard_regs_live and
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	88 hard reg conflict information for living allocnos. */
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	89 static void
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	90 make_hard_regno_born (int regno)
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	91 {
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	92 unsigned int i;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	93
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	94 SET_HARD_REG_BIT (hard_regs_live, regno);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	95 EXECUTE_IF_SET_IN_SPARSESET (objects_live, i)
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	96 {
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	97 ira_object_t obj = ira_object_id_map[i];
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	98
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	99 SET_HARD_REG_BIT (OBJECT_CONFLICT_HARD_REGS (obj), regno);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	100 SET_HARD_REG_BIT (OBJECT_TOTAL_CONFLICT_HARD_REGS (obj), regno);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	101 }
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	102 }
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	103
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	104 /* Process the death of hard register REGNO. This updates
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	105 hard_regs_live. */
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	106 static void
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	107 make_hard_regno_dead (int regno)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	108 {
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	109 CLEAR_HARD_REG_BIT (hard_regs_live, regno);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	110 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	111
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	112 /* Record the birth of object OBJ. Set a bit for it in objects_live,
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	113 start a new live range for it if necessary and update hard register
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	114 conflicts. */
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	115 static void
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	116 make_object_born (ira_object_t obj)
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	117 {
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	118 live_range_t lr = OBJECT_LIVE_RANGES (obj);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	119
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	120 sparseset_set_bit (objects_live, OBJECT_CONFLICT_ID (obj));
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	121 IOR_HARD_REG_SET (OBJECT_CONFLICT_HARD_REGS (obj), hard_regs_live);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	122 IOR_HARD_REG_SET (OBJECT_TOTAL_CONFLICT_HARD_REGS (obj), hard_regs_live);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	123
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	124 if (lr == NULL
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	125 \|\| (lr->finish != curr_point && lr->finish + 1 != curr_point))
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	126 ira_add_live_range_to_object (obj, curr_point, -1);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	127 }
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	128
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	129 /* Update ALLOCNO_EXCESS_PRESSURE_POINTS_NUM for the allocno
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	130 associated with object OBJ. */
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	131 static void
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	132 update_allocno_pressure_excess_length (ira_object_t obj)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	133 {
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	134 ira_allocno_t a = OBJECT_ALLOCNO (obj);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	135 int start, i;
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	136 enum reg_class aclass, pclass, cl;
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	137 live_range_t p;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	138
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	139 aclass = ALLOCNO_CLASS (a);
04ced10e8804 gcc 7 kono parents: 67 diff changeset	140 pclass = ira_pressure_class_translate[aclass];
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	141 for (i = 0;
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	142 (cl = ira_reg_class_super_classes[pclass][i]) != LIM_REG_CLASSES;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	143 i++)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	144 {
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	145 if (! ira_reg_pressure_class_p[cl])
04ced10e8804 gcc 7 kono parents: 67 diff changeset	146 continue;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	147 if (high_pressure_start_point[cl] < 0)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	148 continue;
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	149 p = OBJECT_LIVE_RANGES (obj);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	150 ira_assert (p != NULL);
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	151 start = (high_pressure_start_point[cl] > p->start
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	152 ? high_pressure_start_point[cl] : p->start);
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	153 ALLOCNO_EXCESS_PRESSURE_POINTS_NUM (a) += curr_point - start + 1;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	154 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	155 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	156
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	157 /* Process the death of object OBJ, which is associated with allocno
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	158 A. This finishes the current live range for it. */
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	159 static void
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	160 make_object_dead (ira_object_t obj)
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	161 {
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	162 live_range_t lr;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	163
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	164 sparseset_clear_bit (objects_live, OBJECT_CONFLICT_ID (obj));
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	165 lr = OBJECT_LIVE_RANGES (obj);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	166 ira_assert (lr != NULL);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	167 lr->finish = curr_point;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	168 update_allocno_pressure_excess_length (obj);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	169 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	170
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	171 /* The current register pressures for each pressure class for the current
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	172 basic block. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	173 static int curr_reg_pressure[N_REG_CLASSES];
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	174
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	175 /* Record that register pressure for PCLASS increased by N registers.
04ced10e8804 gcc 7 kono parents: 67 diff changeset	176 Update the current register pressure, maximal register pressure for
04ced10e8804 gcc 7 kono parents: 67 diff changeset	177 the current BB and the start point of the register pressure
04ced10e8804 gcc 7 kono parents: 67 diff changeset	178 excess. */
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	179 static void
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	180 inc_register_pressure (enum reg_class pclass, int n)
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	181 {
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	182 int i;
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	183 enum reg_class cl;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	184
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	185 for (i = 0;
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	186 (cl = ira_reg_class_super_classes[pclass][i]) != LIM_REG_CLASSES;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	187 i++)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	188 {
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	189 if (! ira_reg_pressure_class_p[cl])
04ced10e8804 gcc 7 kono parents: 67 diff changeset	190 continue;
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	191 curr_reg_pressure[cl] += n;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	192 if (high_pressure_start_point[cl] < 0
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	193 && (curr_reg_pressure[cl] > ira_class_hard_regs_num[cl]))
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	194 high_pressure_start_point[cl] = curr_point;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	195 if (curr_bb_node->reg_pressure[cl] < curr_reg_pressure[cl])
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	196 curr_bb_node->reg_pressure[cl] = curr_reg_pressure[cl];
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	197 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	198 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	199
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	200 /* Record that register pressure for PCLASS has decreased by NREGS
04ced10e8804 gcc 7 kono parents: 67 diff changeset	201 registers; update current register pressure, start point of the
04ced10e8804 gcc 7 kono parents: 67 diff changeset	202 register pressure excess, and register pressure excess length for
04ced10e8804 gcc 7 kono parents: 67 diff changeset	203 living allocnos. */
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	204
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	205 static void
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	206 dec_register_pressure (enum reg_class pclass, int nregs)
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	207 {
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	208 int i;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	209 unsigned int j;
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	210 enum reg_class cl;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	211 bool set_p = false;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	212
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	213 for (i = 0;
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	214 (cl = ira_reg_class_super_classes[pclass][i]) != LIM_REG_CLASSES;
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	215 i++)
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	216 {
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	217 if (! ira_reg_pressure_class_p[cl])
04ced10e8804 gcc 7 kono parents: 67 diff changeset	218 continue;
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	219 curr_reg_pressure[cl] -= nregs;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	220 ira_assert (curr_reg_pressure[cl] >= 0);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	221 if (high_pressure_start_point[cl] >= 0
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	222 && curr_reg_pressure[cl] <= ira_class_hard_regs_num[cl])
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	223 set_p = true;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	224 }
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	225 if (set_p)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	226 {
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	227 EXECUTE_IF_SET_IN_SPARSESET (objects_live, j)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	228 update_allocno_pressure_excess_length (ira_object_id_map[j]);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	229 for (i = 0;
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	230 (cl = ira_reg_class_super_classes[pclass][i]) != LIM_REG_CLASSES;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	231 i++)
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	232 {
04ced10e8804 gcc 7 kono parents: 67 diff changeset	233 if (! ira_reg_pressure_class_p[cl])
04ced10e8804 gcc 7 kono parents: 67 diff changeset	234 continue;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	235 if (high_pressure_start_point[cl] >= 0
04ced10e8804 gcc 7 kono parents: 67 diff changeset	236 && curr_reg_pressure[cl] <= ira_class_hard_regs_num[cl])
04ced10e8804 gcc 7 kono parents: 67 diff changeset	237 high_pressure_start_point[cl] = -1;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	238 }
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	239 }
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	240 }
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	241
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	242 /* Determine from the objects_live bitmap whether REGNO is currently live,
04ced10e8804 gcc 7 kono parents: 67 diff changeset	243 and occupies only one object. Return false if we have no information. */
04ced10e8804 gcc 7 kono parents: 67 diff changeset	244 static bool
04ced10e8804 gcc 7 kono parents: 67 diff changeset	245 pseudo_regno_single_word_and_live_p (int regno)
04ced10e8804 gcc 7 kono parents: 67 diff changeset	246 {
04ced10e8804 gcc 7 kono parents: 67 diff changeset	247 ira_allocno_t a = ira_curr_regno_allocno_map[regno];
04ced10e8804 gcc 7 kono parents: 67 diff changeset	248 ira_object_t obj;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	249
04ced10e8804 gcc 7 kono parents: 67 diff changeset	250 if (a == NULL)
04ced10e8804 gcc 7 kono parents: 67 diff changeset	251 return false;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	252 if (ALLOCNO_NUM_OBJECTS (a) > 1)
04ced10e8804 gcc 7 kono parents: 67 diff changeset	253 return false;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	254
04ced10e8804 gcc 7 kono parents: 67 diff changeset	255 obj = ALLOCNO_OBJECT (a, 0);
04ced10e8804 gcc 7 kono parents: 67 diff changeset	256
04ced10e8804 gcc 7 kono parents: 67 diff changeset	257 return sparseset_bit_p (objects_live, OBJECT_CONFLICT_ID (obj));
04ced10e8804 gcc 7 kono parents: 67 diff changeset	258 }
04ced10e8804 gcc 7 kono parents: 67 diff changeset	259
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	260 /* Mark the pseudo register REGNO as live. Update all information about
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	261 live ranges and register pressure. */
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	262 static void
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	263 mark_pseudo_regno_live (int regno)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	264 {
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	265 ira_allocno_t a = ira_curr_regno_allocno_map[regno];
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	266 enum reg_class pclass;
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	267 int i, n, nregs;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	268
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	269 if (a == NULL)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	270 return;
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	271
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	272 /* Invalidate because it is referenced. */
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	273 allocno_saved_at_call[ALLOCNO_NUM (a)] = 0;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	274
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	275 n = ALLOCNO_NUM_OBJECTS (a);
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	276 pclass = ira_pressure_class_translate[ALLOCNO_CLASS (a)];
04ced10e8804 gcc 7 kono parents: 67 diff changeset	277 nregs = ira_reg_class_max_nregs[ALLOCNO_CLASS (a)][ALLOCNO_MODE (a)];
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	278 if (n > 1)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	279 {
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	280 /* We track every subobject separately. */
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	281 gcc_assert (nregs == n);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	282 nregs = 1;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	283 }
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	284
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	285 for (i = 0; i < n; i++)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	286 {
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	287 ira_object_t obj = ALLOCNO_OBJECT (a, i);
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	288
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	289 if (sparseset_bit_p (objects_live, OBJECT_CONFLICT_ID (obj)))
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	290 continue;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	291
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	292 inc_register_pressure (pclass, nregs);
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	293 make_object_born (obj);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	294 }
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	295 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	296
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	297 /* Like mark_pseudo_regno_live, but try to only mark one subword of
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	298 the pseudo as live. SUBWORD indicates which; a value of 0
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	299 indicates the low part. */
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	300 static void
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	301 mark_pseudo_regno_subword_live (int regno, int subword)
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	302 {
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	303 ira_allocno_t a = ira_curr_regno_allocno_map[regno];
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	304 int n;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	305 enum reg_class pclass;
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	306 ira_object_t obj;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	307
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	308 if (a == NULL)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	309 return;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	310
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	311 /* Invalidate because it is referenced. */
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	312 allocno_saved_at_call[ALLOCNO_NUM (a)] = 0;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	313
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	314 n = ALLOCNO_NUM_OBJECTS (a);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	315 if (n == 1)
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	316 {
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	317 mark_pseudo_regno_live (regno);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	318 return;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	319 }
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	320
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	321 pclass = ira_pressure_class_translate[ALLOCNO_CLASS (a)];
04ced10e8804 gcc 7 kono parents: 67 diff changeset	322 gcc_assert
04ced10e8804 gcc 7 kono parents: 67 diff changeset	323 (n == ira_reg_class_max_nregs[ALLOCNO_CLASS (a)][ALLOCNO_MODE (a)]);
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	324 obj = ALLOCNO_OBJECT (a, subword);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	325
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	326 if (sparseset_bit_p (objects_live, OBJECT_CONFLICT_ID (obj)))
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	327 return;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	328
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	329 inc_register_pressure (pclass, 1);
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	330 make_object_born (obj);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	331 }
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	332
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	333 /* Mark the register REG as live. Store a 1 in hard_regs_live for
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	334 this register, record how many consecutive hardware registers it
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	335 actually needs. */
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	336 static void
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	337 mark_hard_reg_live (rtx reg)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	338 {
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	339 int regno = REGNO (reg);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	340
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	341 if (! TEST_HARD_REG_BIT (ira_no_alloc_regs, regno))
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	342 {
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	343 int last = END_REGNO (reg);
04ced10e8804 gcc 7 kono parents: 67 diff changeset	344 enum reg_class aclass, pclass;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	345
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	346 while (regno < last)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	347 {
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	348 if (! TEST_HARD_REG_BIT (hard_regs_live, regno)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	349 && ! TEST_HARD_REG_BIT (eliminable_regset, regno))
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	350 {
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	351 aclass = ira_hard_regno_allocno_class[regno];
04ced10e8804 gcc 7 kono parents: 67 diff changeset	352 pclass = ira_pressure_class_translate[aclass];
04ced10e8804 gcc 7 kono parents: 67 diff changeset	353 inc_register_pressure (pclass, 1);
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	354 make_hard_regno_born (regno);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	355 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	356 regno++;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	357 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	358 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	359 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	360
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	361 /* Mark a pseudo, or one of its subwords, as live. REGNO is the pseudo's
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	362 register number; ORIG_REG is the access in the insn, which may be a
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	363 subreg. */
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	364 static void
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	365 mark_pseudo_reg_live (rtx orig_reg, unsigned regno)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	366 {
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	367 if (read_modify_subreg_p (orig_reg))
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	368 {
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	369 mark_pseudo_regno_subword_live (regno,
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	370 subreg_lowpart_p (orig_reg) ? 0 : 1);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	371 }
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	372 else
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	373 mark_pseudo_regno_live (regno);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	374 }
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	375
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	376 /* Mark the register referenced by use or def REF as live. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	377 static void
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	378 mark_ref_live (df_ref ref)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	379 {
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	380 rtx reg = DF_REF_REG (ref);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	381 rtx orig_reg = reg;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	382
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	383 if (GET_CODE (reg) == SUBREG)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	384 reg = SUBREG_REG (reg);
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	385
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	386 if (REGNO (reg) >= FIRST_PSEUDO_REGISTER)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	387 mark_pseudo_reg_live (orig_reg, REGNO (reg));
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	388 else
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	389 mark_hard_reg_live (reg);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	390 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	391
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	392 /* Mark the pseudo register REGNO as dead. Update all information about
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	393 live ranges and register pressure. */
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	394 static void
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	395 mark_pseudo_regno_dead (int regno)
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	396 {
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	397 ira_allocno_t a = ira_curr_regno_allocno_map[regno];
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	398 int n, i, nregs;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	399 enum reg_class cl;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	400
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	401 if (a == NULL)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	402 return;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	403
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	404 /* Invalidate because it is referenced. */
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	405 allocno_saved_at_call[ALLOCNO_NUM (a)] = 0;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	406
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	407 n = ALLOCNO_NUM_OBJECTS (a);
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	408 cl = ira_pressure_class_translate[ALLOCNO_CLASS (a)];
04ced10e8804 gcc 7 kono parents: 67 diff changeset	409 nregs = ira_reg_class_max_nregs[ALLOCNO_CLASS (a)][ALLOCNO_MODE (a)];
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	410 if (n > 1)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	411 {
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	412 /* We track every subobject separately. */
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	413 gcc_assert (nregs == n);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	414 nregs = 1;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	415 }
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	416 for (i = 0; i < n; i++)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	417 {
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	418 ira_object_t obj = ALLOCNO_OBJECT (a, i);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	419 if (!sparseset_bit_p (objects_live, OBJECT_CONFLICT_ID (obj)))
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	420 continue;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	421
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	422 dec_register_pressure (cl, nregs);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	423 make_object_dead (obj);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	424 }
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	425 }
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	426
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	427 /* Like mark_pseudo_regno_dead, but called when we know that only part of the
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	428 register dies. SUBWORD indicates which; a value of 0 indicates the low part. */
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	429 static void
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	430 mark_pseudo_regno_subword_dead (int regno, int subword)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	431 {
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	432 ira_allocno_t a = ira_curr_regno_allocno_map[regno];
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	433 int n;
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	434 enum reg_class cl;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	435 ira_object_t obj;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	436
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	437 if (a == NULL)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	438 return;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	439
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	440 /* Invalidate because it is referenced. */
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	441 allocno_saved_at_call[ALLOCNO_NUM (a)] = 0;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	442
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	443 n = ALLOCNO_NUM_OBJECTS (a);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	444 if (n == 1)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	445 /* The allocno as a whole doesn't die in this case. */
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	446 return;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	447
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	448 cl = ira_pressure_class_translate[ALLOCNO_CLASS (a)];
04ced10e8804 gcc 7 kono parents: 67 diff changeset	449 gcc_assert
04ced10e8804 gcc 7 kono parents: 67 diff changeset	450 (n == ira_reg_class_max_nregs[ALLOCNO_CLASS (a)][ALLOCNO_MODE (a)]);
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	451
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	452 obj = ALLOCNO_OBJECT (a, subword);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	453 if (!sparseset_bit_p (objects_live, OBJECT_CONFLICT_ID (obj)))
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	454 return;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	455
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	456 dec_register_pressure (cl, 1);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	457 make_object_dead (obj);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	458 }
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	459
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	460 /* Mark the hard register REG as dead. Store a 0 in hard_regs_live for the
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	461 register. */
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	462 static void
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	463 mark_hard_reg_dead (rtx reg)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	464 {
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	465 int regno = REGNO (reg);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	466
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	467 if (! TEST_HARD_REG_BIT (ira_no_alloc_regs, regno))
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	468 {
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	469 int last = END_REGNO (reg);
04ced10e8804 gcc 7 kono parents: 67 diff changeset	470 enum reg_class aclass, pclass;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	471
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	472 while (regno < last)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	473 {
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	474 if (TEST_HARD_REG_BIT (hard_regs_live, regno))
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	475 {
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	476 aclass = ira_hard_regno_allocno_class[regno];
04ced10e8804 gcc 7 kono parents: 67 diff changeset	477 pclass = ira_pressure_class_translate[aclass];
04ced10e8804 gcc 7 kono parents: 67 diff changeset	478 dec_register_pressure (pclass, 1);
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	479 make_hard_regno_dead (regno);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	480 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	481 regno++;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	482 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	483 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	484 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	485
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	486 /* Mark a pseudo, or one of its subwords, as dead. REGNO is the pseudo's
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	487 register number; ORIG_REG is the access in the insn, which may be a
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	488 subreg. */
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	489 static void
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	490 mark_pseudo_reg_dead (rtx orig_reg, unsigned regno)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	491 {
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	492 if (read_modify_subreg_p (orig_reg))
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	493 {
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	494 mark_pseudo_regno_subword_dead (regno,
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	495 subreg_lowpart_p (orig_reg) ? 0 : 1);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	496 }
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	497 else
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	498 mark_pseudo_regno_dead (regno);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	499 }
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	500
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	501 /* Mark the register referenced by definition DEF as dead, if the
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	502 definition is a total one. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	503 static void
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	504 mark_ref_dead (df_ref def)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	505 {
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	506 rtx reg = DF_REF_REG (def);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	507 rtx orig_reg = reg;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	508
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	509 if (DF_REF_FLAGS_IS_SET (def, DF_REF_CONDITIONAL))
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	510 return;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	511
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	512 if (GET_CODE (reg) == SUBREG)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	513 reg = SUBREG_REG (reg);
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	514
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	515 if (DF_REF_FLAGS_IS_SET (def, DF_REF_PARTIAL)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	516 && (GET_CODE (orig_reg) != SUBREG
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	517 \|\| REGNO (reg) < FIRST_PSEUDO_REGISTER
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	518 \|\| !read_modify_subreg_p (orig_reg)))
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	519 return;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	520
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	521 if (REGNO (reg) >= FIRST_PSEUDO_REGISTER)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	522 mark_pseudo_reg_dead (orig_reg, REGNO (reg));
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	523 else
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	524 mark_hard_reg_dead (reg);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	525 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	526
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	527 /* If REG is a pseudo or a subreg of it, and the class of its allocno
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	528 intersects CL, make a conflict with pseudo DREG. ORIG_DREG is the
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	529 rtx actually accessed, it may be identical to DREG or a subreg of it.
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	530 Advance the current program point before making the conflict if
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	531 ADVANCE_P. Return TRUE if we will need to advance the current
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	532 program point. */
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	533 static bool
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	534 make_pseudo_conflict (rtx reg, enum reg_class cl, rtx dreg, rtx orig_dreg,
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	535 bool advance_p)
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	536 {
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	537 rtx orig_reg = reg;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	538 ira_allocno_t a;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	539
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	540 if (GET_CODE (reg) == SUBREG)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	541 reg = SUBREG_REG (reg);
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	542
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	543 if (! REG_P (reg) \|\| REGNO (reg) < FIRST_PSEUDO_REGISTER)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	544 return advance_p;
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	545
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	546 a = ira_curr_regno_allocno_map[REGNO (reg)];
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	547 if (! reg_classes_intersect_p (cl, ALLOCNO_CLASS (a)))
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	548 return advance_p;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	549
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	550 if (advance_p)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	551 curr_point++;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	552
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	553 mark_pseudo_reg_live (orig_reg, REGNO (reg));
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	554 mark_pseudo_reg_live (orig_dreg, REGNO (dreg));
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	555 mark_pseudo_reg_dead (orig_reg, REGNO (reg));
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	556 mark_pseudo_reg_dead (orig_dreg, REGNO (dreg));
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	557
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	558 return false;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	559 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	560
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	561 /* Check and make if necessary conflicts for pseudo DREG of class
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	562 DEF_CL of the current insn with input operand USE of class USE_CL.
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	563 ORIG_DREG is the rtx actually accessed, it may be identical to
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	564 DREG or a subreg of it. Advance the current program point before
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	565 making the conflict if ADVANCE_P. Return TRUE if we will need to
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	566 advance the current program point. */
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	567 static bool
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	568 check_and_make_def_use_conflict (rtx dreg, rtx orig_dreg,
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	569 enum reg_class def_cl, int use,
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	570 enum reg_class use_cl, bool advance_p)
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	571 {
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	572 if (! reg_classes_intersect_p (def_cl, use_cl))
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	573 return advance_p;
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	574
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	575 advance_p = make_pseudo_conflict (recog_data.operand[use],
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	576 use_cl, dreg, orig_dreg, advance_p);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	577
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	578 /* Reload may end up swapping commutative operands, so you
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	579 have to take both orderings into account. The
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	580 constraints for the two operands can be completely
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	581 different. (Indeed, if the constraints for the two
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	582 operands are the same for all alternatives, there's no
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	583 point marking them as commutative.) */
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	584 if (use < recog_data.n_operands - 1
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	585 && recog_data.constraints[use][0] == '%')
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	586 advance_p
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	587 = make_pseudo_conflict (recog_data.operand[use + 1],
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	588 use_cl, dreg, orig_dreg, advance_p);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	589 if (use >= 1
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	590 && recog_data.constraints[use - 1][0] == '%')
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	591 advance_p
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	592 = make_pseudo_conflict (recog_data.operand[use - 1],
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	593 use_cl, dreg, orig_dreg, advance_p);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	594 return advance_p;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	595 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	596
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	597 /* Check and make if necessary conflicts for definition DEF of class
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	598 DEF_CL of the current insn with input operands. Process only
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	599 constraints of alternative ALT. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	600 static void
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	601 check_and_make_def_conflict (int alt, int def, enum reg_class def_cl)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	602 {
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	603 int use, use_match;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	604 ira_allocno_t a;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	605 enum reg_class use_cl, acl;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	606 bool advance_p;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	607 rtx dreg = recog_data.operand[def];
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	608 rtx orig_dreg = dreg;
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	609
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	610 if (def_cl == NO_REGS)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	611 return;
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	612
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	613 if (GET_CODE (dreg) == SUBREG)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	614 dreg = SUBREG_REG (dreg);
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	615
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	616 if (! REG_P (dreg) \|\| REGNO (dreg) < FIRST_PSEUDO_REGISTER)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	617 return;
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	618
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	619 a = ira_curr_regno_allocno_map[REGNO (dreg)];
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	620 acl = ALLOCNO_CLASS (a);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	621 if (! reg_classes_intersect_p (acl, def_cl))
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	622 return;
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	623
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	624 advance_p = true;
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	625
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	626 int n_operands = recog_data.n_operands;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	627 const operand_alternative op_alt = &recog_op_alt[alt n_operands];
04ced10e8804 gcc 7 kono parents: 67 diff changeset	628 for (use = 0; use < n_operands; use++)
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	629 {
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	630 int alt1;
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	631
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	632 if (use == def \|\| recog_data.operand_type[use] == OP_OUT)
36 855418dad1a3 gcc-4.4-20091020 e075725 parents: 19 diff changeset	633 continue;
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	634
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	635 if (op_alt[use].anything_ok)
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	636 use_cl = ALL_REGS;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	637 else
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	638 use_cl = op_alt[use].cl;
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	639
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	640 /* If there's any alternative that allows USE to match DEF, do not
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	641 record a conflict. If that causes us to create an invalid
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	642 instruction due to the earlyclobber, reload must fix it up. */
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	643 for (alt1 = 0; alt1 < recog_data.n_alternatives; alt1++)
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	644 {
04ced10e8804 gcc 7 kono parents: 67 diff changeset	645 if (!TEST_BIT (preferred_alternatives, alt1))
04ced10e8804 gcc 7 kono parents: 67 diff changeset	646 continue;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	647 const operand_alternative *op_alt1
04ced10e8804 gcc 7 kono parents: 67 diff changeset	648 = &recog_op_alt[alt1 * n_operands];
04ced10e8804 gcc 7 kono parents: 67 diff changeset	649 if (op_alt1[use].matches == def
04ced10e8804 gcc 7 kono parents: 67 diff changeset	650 \|\| (use < n_operands - 1
04ced10e8804 gcc 7 kono parents: 67 diff changeset	651 && recog_data.constraints[use][0] == '%'
04ced10e8804 gcc 7 kono parents: 67 diff changeset	652 && op_alt1[use + 1].matches == def)
04ced10e8804 gcc 7 kono parents: 67 diff changeset	653 \|\| (use >= 1
04ced10e8804 gcc 7 kono parents: 67 diff changeset	654 && recog_data.constraints[use - 1][0] == '%'
04ced10e8804 gcc 7 kono parents: 67 diff changeset	655 && op_alt1[use - 1].matches == def))
04ced10e8804 gcc 7 kono parents: 67 diff changeset	656 break;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	657 }
63 b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	658
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	659 if (alt1 < recog_data.n_alternatives)
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	660 continue;
b7f97abdc517 update gcc from gcc-4.5.0 to gcc-4.6 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 55 diff changeset	661
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	662 advance_p = check_and_make_def_use_conflict (dreg, orig_dreg, def_cl,
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	663 use, use_cl, advance_p);
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	664
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	665 if ((use_match = op_alt[use].matches) >= 0)
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	666 {
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	667 if (use_match == def)
36 855418dad1a3 gcc-4.4-20091020 e075725 parents: 19 diff changeset	668 continue;
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	669
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	670 if (op_alt[use_match].anything_ok)
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	671 use_cl = ALL_REGS;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	672 else
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	673 use_cl = op_alt[use_match].cl;
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	674 advance_p = check_and_make_def_use_conflict (dreg, orig_dreg, def_cl,
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	675 use, use_cl, advance_p);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	676 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	677 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	678 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	679
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	680 /* Make conflicts of early clobber pseudo registers of the current
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	681 insn with its inputs. Avoid introducing unnecessary conflicts by
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	682 checking classes of the constraints and pseudos because otherwise
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	683 significant code degradation is possible for some targets. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	684 static void
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	685 make_early_clobber_and_input_conflicts (void)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	686 {
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	687 int alt;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	688 int def, def_match;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	689 enum reg_class def_cl;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	690
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	691 int n_alternatives = recog_data.n_alternatives;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	692 int n_operands = recog_data.n_operands;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	693 const operand_alternative *op_alt = recog_op_alt;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	694 for (alt = 0; alt < n_alternatives; alt++, op_alt += n_operands)
04ced10e8804 gcc 7 kono parents: 67 diff changeset	695 if (TEST_BIT (preferred_alternatives, alt))
04ced10e8804 gcc 7 kono parents: 67 diff changeset	696 for (def = 0; def < n_operands; def++)
04ced10e8804 gcc 7 kono parents: 67 diff changeset	697 {
04ced10e8804 gcc 7 kono parents: 67 diff changeset	698 def_cl = NO_REGS;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	699 if (op_alt[def].earlyclobber)
04ced10e8804 gcc 7 kono parents: 67 diff changeset	700 {
04ced10e8804 gcc 7 kono parents: 67 diff changeset	701 if (op_alt[def].anything_ok)
04ced10e8804 gcc 7 kono parents: 67 diff changeset	702 def_cl = ALL_REGS;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	703 else
04ced10e8804 gcc 7 kono parents: 67 diff changeset	704 def_cl = op_alt[def].cl;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	705 check_and_make_def_conflict (alt, def, def_cl);
04ced10e8804 gcc 7 kono parents: 67 diff changeset	706 }
04ced10e8804 gcc 7 kono parents: 67 diff changeset	707 if ((def_match = op_alt[def].matches) >= 0
04ced10e8804 gcc 7 kono parents: 67 diff changeset	708 && (op_alt[def_match].earlyclobber
04ced10e8804 gcc 7 kono parents: 67 diff changeset	709 \|\| op_alt[def].earlyclobber))
04ced10e8804 gcc 7 kono parents: 67 diff changeset	710 {
04ced10e8804 gcc 7 kono parents: 67 diff changeset	711 if (op_alt[def_match].anything_ok)
04ced10e8804 gcc 7 kono parents: 67 diff changeset	712 def_cl = ALL_REGS;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	713 else
04ced10e8804 gcc 7 kono parents: 67 diff changeset	714 def_cl = op_alt[def_match].cl;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	715 check_and_make_def_conflict (alt, def, def_cl);
04ced10e8804 gcc 7 kono parents: 67 diff changeset	716 }
04ced10e8804 gcc 7 kono parents: 67 diff changeset	717 }
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	718 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	719
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	720 /* Mark early clobber hard registers of the current INSN as live (if
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	721 LIVE_P) or dead. Return true if there are such registers. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	722 static bool
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	723 mark_hard_reg_early_clobbers (rtx_insn *insn, bool live_p)
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	724 {
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	725 df_ref def;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	726 bool set_p = false;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	727
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	728 FOR_EACH_INSN_DEF (def, insn)
04ced10e8804 gcc 7 kono parents: 67 diff changeset	729 if (DF_REF_FLAGS_IS_SET (def, DF_REF_MUST_CLOBBER))
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	730 {
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	731 rtx dreg = DF_REF_REG (def);
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	732
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	733 if (GET_CODE (dreg) == SUBREG)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	734 dreg = SUBREG_REG (dreg);
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	735 if (! REG_P (dreg) \|\| REGNO (dreg) >= FIRST_PSEUDO_REGISTER)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	736 continue;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	737
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	738 /* Hard register clobbers are believed to be early clobber
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	739 because there is no way to say that non-operand hard
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	740 register clobbers are not early ones. */
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	741 if (live_p)
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	742 mark_ref_live (def);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	743 else
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	744 mark_ref_dead (def);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	745 set_p = true;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	746 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	747
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	748 return set_p;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	749 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	750
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	751 /* Checks that CONSTRAINTS permits to use only one hard register. If
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	752 it is so, the function returns the class of the hard register.
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	753 Otherwise it returns NO_REGS. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	754 static enum reg_class
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	755 single_reg_class (const char *constraints, rtx op, rtx equiv_const)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	756 {
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	757 int c;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	758 enum reg_class cl, next_cl;
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	759 enum constraint_num cn;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	760
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	761 cl = NO_REGS;
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	762 alternative_mask preferred = preferred_alternatives;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	763 for (; (c = *constraints); constraints += CONSTRAINT_LEN (c, constraints))
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	764 if (c == '#')
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	765 preferred &= ~ALTERNATIVE_BIT (0);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	766 else if (c == ',')
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	767 preferred >>= 1;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	768 else if (preferred & 1)
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	769 switch (c)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	770 {
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	771 case 'g':
04ced10e8804 gcc 7 kono parents: 67 diff changeset	772 return NO_REGS;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	773
04ced10e8804 gcc 7 kono parents: 67 diff changeset	774 default:
04ced10e8804 gcc 7 kono parents: 67 diff changeset	775 /* ??? Is this the best way to handle memory constraints? */
04ced10e8804 gcc 7 kono parents: 67 diff changeset	776 cn = lookup_constraint (constraints);
04ced10e8804 gcc 7 kono parents: 67 diff changeset	777 if (insn_extra_memory_constraint (cn)
04ced10e8804 gcc 7 kono parents: 67 diff changeset	778 \|\| insn_extra_special_memory_constraint (cn)
04ced10e8804 gcc 7 kono parents: 67 diff changeset	779 \|\| insn_extra_address_constraint (cn))
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	780 return NO_REGS;
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	781 if (constraint_satisfied_p (op, cn)
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	782 \|\| (equiv_const != NULL_RTX
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	783 && CONSTANT_P (equiv_const)
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	784 && constraint_satisfied_p (equiv_const, cn)))
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	785 return NO_REGS;
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	786 next_cl = reg_class_for_constraint (cn);
04ced10e8804 gcc 7 kono parents: 67 diff changeset	787 if (next_cl == NO_REGS)
04ced10e8804 gcc 7 kono parents: 67 diff changeset	788 break;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	789 if (cl == NO_REGS
04ced10e8804 gcc 7 kono parents: 67 diff changeset	790 ? ira_class_singleton[next_cl][GET_MODE (op)] < 0
04ced10e8804 gcc 7 kono parents: 67 diff changeset	791 : (ira_class_singleton[cl][GET_MODE (op)]
04ced10e8804 gcc 7 kono parents: 67 diff changeset	792 != ira_class_singleton[next_cl][GET_MODE (op)]))
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	793 return NO_REGS;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	794 cl = next_cl;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	795 break;
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	796
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	797 case '0': case '1': case '2': case '3': case '4':
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	798 case '5': case '6': case '7': case '8': case '9':
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	799 next_cl
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	800 = single_reg_class (recog_data.constraints[c - '0'],
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	801 recog_data.operand[c - '0'], NULL_RTX);
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	802 if (cl == NO_REGS
04ced10e8804 gcc 7 kono parents: 67 diff changeset	803 ? ira_class_singleton[next_cl][GET_MODE (op)] < 0
04ced10e8804 gcc 7 kono parents: 67 diff changeset	804 : (ira_class_singleton[cl][GET_MODE (op)]
04ced10e8804 gcc 7 kono parents: 67 diff changeset	805 != ira_class_singleton[next_cl][GET_MODE (op)]))
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	806 return NO_REGS;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	807 cl = next_cl;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	808 break;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	809 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	810 return cl;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	811 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	812
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	813 /* The function checks that operand OP_NUM of the current insn can use
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	814 only one hard register. If it is so, the function returns the
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	815 class of the hard register. Otherwise it returns NO_REGS. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	816 static enum reg_class
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	817 single_reg_operand_class (int op_num)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	818 {
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	819 if (op_num < 0 \|\| recog_data.n_alternatives == 0)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	820 return NO_REGS;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	821 return single_reg_class (recog_data.constraints[op_num],
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	822 recog_data.operand[op_num], NULL_RTX);
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	823 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	824
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	825 /* The function sets up hard register set *SET to hard registers which
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	826 might be used by insn reloads because the constraints are too
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	827 strict. */
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	828 void
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	829 ira_implicitly_set_insn_hard_regs (HARD_REG_SET *set,
04ced10e8804 gcc 7 kono parents: 67 diff changeset	830 alternative_mask preferred)
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	831 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	832 int i, c, regno = 0;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	833 enum reg_class cl;
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	834 rtx op;
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	835 machine_mode mode;
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	836
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	837 CLEAR_HARD_REG_SET (*set);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	838 for (i = 0; i < recog_data.n_operands; i++)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	839 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	840 op = recog_data.operand[i];
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	841
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	842 if (GET_CODE (op) == SUBREG)
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	843 op = SUBREG_REG (op);
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	844
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	845 if (GET_CODE (op) == SCRATCH
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	846 \|\| (REG_P (op) && (regno = REGNO (op)) >= FIRST_PSEUDO_REGISTER))
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	847 {
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	848 const char *p = recog_data.constraints[i];
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	849
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	850 mode = (GET_CODE (op) == SCRATCH
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	851 ? GET_MODE (op) : PSEUDO_REGNO_MODE (regno));
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	852 cl = NO_REGS;
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	853 for (; (c = *p); p += CONSTRAINT_LEN (c, p))
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	854 if (c == '#')
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	855 preferred &= ~ALTERNATIVE_BIT (0);
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	856 else if (c == ',')
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	857 preferred >>= 1;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	858 else if (preferred & 1)
04ced10e8804 gcc 7 kono parents: 67 diff changeset	859 {
04ced10e8804 gcc 7 kono parents: 67 diff changeset	860 cl = reg_class_for_constraint (lookup_constraint (p));
04ced10e8804 gcc 7 kono parents: 67 diff changeset	861 if (cl != NO_REGS)
04ced10e8804 gcc 7 kono parents: 67 diff changeset	862 {
04ced10e8804 gcc 7 kono parents: 67 diff changeset	863 /* There is no register pressure problem if all of the
04ced10e8804 gcc 7 kono parents: 67 diff changeset	864 regs in this class are fixed. */
04ced10e8804 gcc 7 kono parents: 67 diff changeset	865 int regno = ira_class_singleton[cl][mode];
04ced10e8804 gcc 7 kono parents: 67 diff changeset	866 if (regno >= 0)
04ced10e8804 gcc 7 kono parents: 67 diff changeset	867 add_to_hard_reg_set (set, mode, regno);
04ced10e8804 gcc 7 kono parents: 67 diff changeset	868 }
04ced10e8804 gcc 7 kono parents: 67 diff changeset	869 }
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	870 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	871 }
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	872 }
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	873 /* Processes input operands, if IN_P, or output operands otherwise of
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	874 the current insn with FREQ to find allocno which can use only one
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	875 hard register and makes other currently living allocnos conflicting
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	876 with the hard register. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	877 static void
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	878 process_single_reg_class_operands (bool in_p, int freq)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	879 {
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	880 int i, regno;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	881 unsigned int px;
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	882 enum reg_class cl;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	883 rtx operand;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	884 ira_allocno_t operand_a, a;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	885
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	886 for (i = 0; i < recog_data.n_operands; i++)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	887 {
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	888 operand = recog_data.operand[i];
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	889 if (in_p && recog_data.operand_type[i] != OP_IN
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	890 && recog_data.operand_type[i] != OP_INOUT)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	891 continue;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	892 if (! in_p && recog_data.operand_type[i] != OP_OUT
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	893 && recog_data.operand_type[i] != OP_INOUT)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	894 continue;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	895 cl = single_reg_operand_class (i);
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	896 if (cl == NO_REGS)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	897 continue;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	898
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	899 operand_a = NULL;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	900
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	901 if (GET_CODE (operand) == SUBREG)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	902 operand = SUBREG_REG (operand);
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	903
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	904 if (REG_P (operand)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	905 && (regno = REGNO (operand)) >= FIRST_PSEUDO_REGISTER)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	906 {
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	907 enum reg_class aclass;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	908
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	909 operand_a = ira_curr_regno_allocno_map[regno];
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	910 aclass = ALLOCNO_CLASS (operand_a);
04ced10e8804 gcc 7 kono parents: 67 diff changeset	911 if (ira_class_subset_p[cl][aclass])
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	912 {
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	913 /* View the desired allocation of OPERAND as:
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	914
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	915 (REG:YMODE YREGNO),
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	916
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	917 a simplification of:
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	918
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	919 (subreg:YMODE (reg:XMODE XREGNO) OFFSET). */
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	920 machine_mode ymode, xmode;
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	921 int xregno, yregno;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	922 HOST_WIDE_INT offset;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	923
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	924 xmode = recog_data.operand_mode[i];
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	925 xregno = ira_class_singleton[cl][xmode];
04ced10e8804 gcc 7 kono parents: 67 diff changeset	926 gcc_assert (xregno >= 0);
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	927 ymode = ALLOCNO_MODE (operand_a);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	928 offset = subreg_lowpart_offset (ymode, xmode);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	929 yregno = simplify_subreg_regno (xregno, xmode, offset, ymode);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	930 if (yregno >= 0
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	931 && ira_class_hard_reg_index[aclass][yregno] >= 0)
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	932 {
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	933 int cost;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	934
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	935 ira_allocate_and_set_costs
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	936 (&ALLOCNO_CONFLICT_HARD_REG_COSTS (operand_a),
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	937 aclass, 0);
04ced10e8804 gcc 7 kono parents: 67 diff changeset	938 ira_init_register_move_cost_if_necessary (xmode);
04ced10e8804 gcc 7 kono parents: 67 diff changeset	939 cost = freq * (in_p
04ced10e8804 gcc 7 kono parents: 67 diff changeset	940 ? ira_register_move_cost[xmode][aclass][cl]
04ced10e8804 gcc 7 kono parents: 67 diff changeset	941 : ira_register_move_cost[xmode][cl][aclass]);
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	942 ALLOCNO_CONFLICT_HARD_REG_COSTS (operand_a)
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	943 [ira_class_hard_reg_index[aclass][yregno]] -= cost;
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	944 }
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	945 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	946 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	947
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	948 EXECUTE_IF_SET_IN_SPARSESET (objects_live, px)
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	949 {
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	950 ira_object_t obj = ira_object_id_map[px];
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	951 a = OBJECT_ALLOCNO (obj);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	952 if (a != operand_a)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	953 {
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	954 /* We could increase costs of A instead of making it
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	955 conflicting with the hard register. But it works worse
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	956 because it will be spilled in reload in anyway. */
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	957 IOR_HARD_REG_SET (OBJECT_CONFLICT_HARD_REGS (obj),
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	958 reg_class_contents[cl]);
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	959 IOR_HARD_REG_SET (OBJECT_TOTAL_CONFLICT_HARD_REGS (obj),
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	960 reg_class_contents[cl]);
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	961 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	962 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	963 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	964 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	965
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	966 /* Look through the CALL_INSN_FUNCTION_USAGE of a call insn INSN, and see if
04ced10e8804 gcc 7 kono parents: 67 diff changeset	967 we find a SET rtx that we can use to deduce that a register can be cheaply
04ced10e8804 gcc 7 kono parents: 67 diff changeset	968 caller-saved. Return such a register, or NULL_RTX if none is found. */
04ced10e8804 gcc 7 kono parents: 67 diff changeset	969 static rtx
04ced10e8804 gcc 7 kono parents: 67 diff changeset	970 find_call_crossed_cheap_reg (rtx_insn *insn)
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	971 {
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	972 rtx cheap_reg = NULL_RTX;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	973 rtx exp = CALL_INSN_FUNCTION_USAGE (insn);
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	974
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	975 while (exp != NULL)
04ced10e8804 gcc 7 kono parents: 67 diff changeset	976 {
04ced10e8804 gcc 7 kono parents: 67 diff changeset	977 rtx x = XEXP (exp, 0);
04ced10e8804 gcc 7 kono parents: 67 diff changeset	978 if (GET_CODE (x) == SET)
04ced10e8804 gcc 7 kono parents: 67 diff changeset	979 {
04ced10e8804 gcc 7 kono parents: 67 diff changeset	980 exp = x;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	981 break;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	982 }
04ced10e8804 gcc 7 kono parents: 67 diff changeset	983 exp = XEXP (exp, 1);
04ced10e8804 gcc 7 kono parents: 67 diff changeset	984 }
04ced10e8804 gcc 7 kono parents: 67 diff changeset	985 if (exp != NULL)
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	986 {
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	987 basic_block bb = BLOCK_FOR_INSN (insn);
04ced10e8804 gcc 7 kono parents: 67 diff changeset	988 rtx reg = SET_SRC (exp);
04ced10e8804 gcc 7 kono parents: 67 diff changeset	989 rtx_insn *prev = PREV_INSN (insn);
04ced10e8804 gcc 7 kono parents: 67 diff changeset	990 while (prev && !(INSN_P (prev)
04ced10e8804 gcc 7 kono parents: 67 diff changeset	991 && BLOCK_FOR_INSN (prev) != bb))
04ced10e8804 gcc 7 kono parents: 67 diff changeset	992 {
04ced10e8804 gcc 7 kono parents: 67 diff changeset	993 if (NONDEBUG_INSN_P (prev))
04ced10e8804 gcc 7 kono parents: 67 diff changeset	994 {
04ced10e8804 gcc 7 kono parents: 67 diff changeset	995 rtx set = single_set (prev);
04ced10e8804 gcc 7 kono parents: 67 diff changeset	996
04ced10e8804 gcc 7 kono parents: 67 diff changeset	997 if (set && rtx_equal_p (SET_DEST (set), reg))
04ced10e8804 gcc 7 kono parents: 67 diff changeset	998 {
04ced10e8804 gcc 7 kono parents: 67 diff changeset	999 rtx src = SET_SRC (set);
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1000 if (!REG_P (src) \|\| HARD_REGISTER_P (src)
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1001 \|\| !pseudo_regno_single_word_and_live_p (REGNO (src)))
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1002 break;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1003 if (!modified_between_p (src, prev, insn))
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1004 cheap_reg = src;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1005 break;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1006 }
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1007 if (set && rtx_equal_p (SET_SRC (set), reg))
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1008 {
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1009 rtx dest = SET_DEST (set);
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1010 if (!REG_P (dest) \|\| HARD_REGISTER_P (dest)
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1011 \|\| !pseudo_regno_single_word_and_live_p (REGNO (dest)))
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1012 break;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1013 if (!modified_between_p (dest, prev, insn))
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1014 cheap_reg = dest;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1015 break;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1016 }
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1017
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1018 if (reg_set_p (reg, prev))
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1019 break;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1020 }
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1021 prev = PREV_INSN (prev);
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1022 }
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	1023 }
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1024 return cheap_reg;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1025 }
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	1026
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1027 /* Process insns of the basic block given by its LOOP_TREE_NODE to
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1028 update allocno live ranges, allocno hard register conflicts,
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1029 intersected calls, and register pressure info for allocnos for the
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1030 basic block for and regions containing the basic block. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1031 static void
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1032 process_bb_node_lives (ira_loop_tree_node_t loop_tree_node)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1033 {
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1034 int i, freq;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1035 unsigned int j;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1036 basic_block bb;
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1037 rtx_insn *insn;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1038 bitmap_iterator bi;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1039 bitmap reg_live_out;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1040 unsigned int px;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1041 bool set_p;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1042
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1043 bb = loop_tree_node->bb;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1044 if (bb != NULL)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1045 {
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1046 for (i = 0; i < ira_pressure_classes_num; i++)
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1047 {
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1048 curr_reg_pressure[ira_pressure_classes[i]] = 0;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1049 high_pressure_start_point[ira_pressure_classes[i]] = -1;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1050 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1051 curr_bb_node = loop_tree_node;
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1052 reg_live_out = df_get_live_out (bb);
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1053 sparseset_clear (objects_live);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1054 REG_SET_TO_HARD_REG_SET (hard_regs_live, reg_live_out);
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1055 AND_COMPL_HARD_REG_SET (hard_regs_live, eliminable_regset);
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1056 AND_COMPL_HARD_REG_SET (hard_regs_live, ira_no_alloc_regs);
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1057 for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1058 if (TEST_HARD_REG_BIT (hard_regs_live, i))
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1059 {
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1060 enum reg_class aclass, pclass, cl;
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	1061
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1062 aclass = ira_allocno_class_translate[REGNO_REG_CLASS (i)];
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1063 pclass = ira_pressure_class_translate[aclass];
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1064 for (j = 0;
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1065 (cl = ira_reg_class_super_classes[pclass][j])
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1066 != LIM_REG_CLASSES;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1067 j++)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1068 {
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1069 if (! ira_reg_pressure_class_p[cl])
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1070 continue;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1071 curr_reg_pressure[cl]++;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1072 if (curr_bb_node->reg_pressure[cl] < curr_reg_pressure[cl])
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1073 curr_bb_node->reg_pressure[cl] = curr_reg_pressure[cl];
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1074 ira_assert (curr_reg_pressure[cl]
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1075 <= ira_class_hard_regs_num[cl]);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1076 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1077 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1078 EXECUTE_IF_SET_IN_BITMAP (reg_live_out, FIRST_PSEUDO_REGISTER, j, bi)
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1079 mark_pseudo_regno_live (j);
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	1080
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1081 freq = REG_FREQ_FROM_BB (bb);
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1082 if (freq == 0)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1083 freq = 1;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1084
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1085 /* Invalidate all allocno_saved_at_call entries. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1086 last_call_num++;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1087
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1088 /* Scan the code of this basic block, noting which allocnos and
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1089 hard regs are born or die.
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1090
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1091 Note that this loop treats uninitialized values as live until
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1092 the beginning of the block. For example, if an instruction
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1093 uses (reg:DI foo), and only (subreg:SI (reg:DI foo) 0) is ever
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1094 set, FOO will remain live until the beginning of the block.
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1095 Likewise if FOO is not set at all. This is unnecessarily
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1096 pessimistic, but it probably doesn't matter much in practice. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1097 FOR_BB_INSNS_REVERSE (bb, insn)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1098 {
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1099 ira_allocno_t a;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1100 df_ref def, use;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1101 bool call_p;
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	1102
77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	1103 if (!NONDEBUG_INSN_P (insn))
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1104 continue;
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	1105
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1106 if (internal_flag_ira_verbose > 2 && ira_dump_file != NULL)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1107 fprintf (ira_dump_file, " Insn %u(l%d): point = %d\n",
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1108 INSN_UID (insn), loop_tree_node->parent->loop_num,
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1109 curr_point);
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1110
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1111 call_p = CALL_P (insn);
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1112 #ifdef REAL_PIC_OFFSET_TABLE_REGNUM
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1113 int regno;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1114 bool clear_pic_use_conflict_p = false;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1115 /* Processing insn usage in call insn can create conflict
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1116 with pic pseudo and pic hard reg and that is wrong.
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1117 Check this situation and fix it at the end of the insn
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1118 processing. */
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1119 if (call_p && pic_offset_table_rtx != NULL_RTX
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1120 && (regno = REGNO (pic_offset_table_rtx)) >= FIRST_PSEUDO_REGISTER
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1121 && (a = ira_curr_regno_allocno_map[regno]) != NULL)
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1122 clear_pic_use_conflict_p
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1123 = (find_regno_fusage (insn, USE, REAL_PIC_OFFSET_TABLE_REGNUM)
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1124 && ! TEST_HARD_REG_BIT (OBJECT_CONFLICT_HARD_REGS
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1125 (ALLOCNO_OBJECT (a, 0)),
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1126 REAL_PIC_OFFSET_TABLE_REGNUM));
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1127 #endif
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1128
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1129 /* Mark each defined value as live. We need to do this for
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1130 unused values because they still conflict with quantities
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1131 that are live at the time of the definition.
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1132
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1133 Ignore DF_REF_MAY_CLOBBERs on a call instruction. Such
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1134 references represent the effect of the called function
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1135 on a call-clobbered register. Marking the register as
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1136 live would stop us from allocating it to a call-crossing
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1137 allocno. */
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1138 FOR_EACH_INSN_DEF (def, insn)
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1139 if (!call_p \|\| !DF_REF_FLAGS_IS_SET (def, DF_REF_MAY_CLOBBER))
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1140 mark_ref_live (def);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1141
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1142 /* If INSN has multiple outputs, then any value used in one
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1143 of the outputs conflicts with the other outputs. Model this
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1144 by making the used value live during the output phase.
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1145
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1146 It is unsafe to use !single_set here since it will ignore
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1147 an unused output. Just because an output is unused does
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1148 not mean the compiler can assume the side effect will not
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1149 occur. Consider if ALLOCNO appears in the address of an
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1150 output and we reload the output. If we allocate ALLOCNO
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1151 to the same hard register as an unused output we could
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1152 set the hard register before the output reload insn. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1153 if (GET_CODE (PATTERN (insn)) == PARALLEL && multiple_sets (insn))
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1154 FOR_EACH_INSN_USE (use, insn)
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1155 {
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1156 int i;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1157 rtx reg;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1158
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1159 reg = DF_REF_REG (use);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1160 for (i = XVECLEN (PATTERN (insn), 0) - 1; i >= 0; i--)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1161 {
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1162 rtx set;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1163
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1164 set = XVECEXP (PATTERN (insn), 0, i);
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1165 if (GET_CODE (set) == SET
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1166 && reg_overlap_mentioned_p (reg, SET_DEST (set)))
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1167 {
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1168 /* After the previous loop, this is a no-op if
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1169 REG is contained within SET_DEST (SET). */
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1170 mark_ref_live (use);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1171 break;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1172 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1173 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1174 }
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	1175
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1176 extract_insn (insn);
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1177 preferred_alternatives = get_preferred_alternatives (insn);
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1178 preprocess_constraints (insn);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1179 process_single_reg_class_operands (false, freq);
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	1180
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1181 /* See which defined values die here. */
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1182 FOR_EACH_INSN_DEF (def, insn)
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1183 if (!call_p \|\| !DF_REF_FLAGS_IS_SET (def, DF_REF_MAY_CLOBBER))
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1184 mark_ref_dead (def);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1185
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1186 if (call_p)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1187 {
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1188 /* Try to find a SET in the CALL_INSN_FUNCTION_USAGE, and from
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1189 there, try to find a pseudo that is live across the call but
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1190 can be cheaply reconstructed from the return value. */
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1191 rtx cheap_reg = find_call_crossed_cheap_reg (insn);
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1192 if (cheap_reg != NULL_RTX)
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1193 add_reg_note (insn, REG_RETURNED, cheap_reg);
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1194
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1195 last_call_num++;
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1196 sparseset_clear (allocnos_processed);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1197 /* The current set of live allocnos are live across the call. */
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1198 EXECUTE_IF_SET_IN_SPARSESET (objects_live, i)
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1199 {
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1200 ira_object_t obj = ira_object_id_map[i];
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1201 a = OBJECT_ALLOCNO (obj);
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1202 int num = ALLOCNO_NUM (a);
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1203 HARD_REG_SET this_call_used_reg_set;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1204
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1205 get_call_reg_set_usage (insn, &this_call_used_reg_set,
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1206 call_used_reg_set);
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	1207
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1208 /* Don't allocate allocnos that cross setjmps or any
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1209 call, if this function receives a nonlocal
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1210 goto. */
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1211 if (cfun->has_nonlocal_label
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1212 \|\| find_reg_note (insn, REG_SETJMP,
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1213 NULL_RTX) != NULL_RTX)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1214 {
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1215 SET_HARD_REG_SET (OBJECT_CONFLICT_HARD_REGS (obj));
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1216 SET_HARD_REG_SET (OBJECT_TOTAL_CONFLICT_HARD_REGS (obj));
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1217 }
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1218 if (can_throw_internal (insn))
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1219 {
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1220 IOR_HARD_REG_SET (OBJECT_CONFLICT_HARD_REGS (obj),
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1221 this_call_used_reg_set);
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1222 IOR_HARD_REG_SET (OBJECT_TOTAL_CONFLICT_HARD_REGS (obj),
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1223 this_call_used_reg_set);
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1224 }
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1225
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1226 if (sparseset_bit_p (allocnos_processed, num))
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1227 continue;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1228 sparseset_set_bit (allocnos_processed, num);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1229
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1230 if (allocno_saved_at_call[num] != last_call_num)
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1231 /* Here we are mimicking caller-save.c behavior
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1232 which does not save hard register at a call if
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1233 it was saved on previous call in the same basic
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1234 block and the hard register was not mentioned
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1235 between the two calls. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1236 ALLOCNO_CALL_FREQ (a) += freq;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1237 /* Mark it as saved at the next call. */
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1238 allocno_saved_at_call[num] = last_call_num + 1;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1239 ALLOCNO_CALLS_CROSSED_NUM (a)++;
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1240 IOR_HARD_REG_SET (ALLOCNO_CROSSED_CALLS_CLOBBERED_REGS (a),
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1241 this_call_used_reg_set);
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1242 if (cheap_reg != NULL_RTX
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1243 && ALLOCNO_REGNO (a) == (int) REGNO (cheap_reg))
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1244 ALLOCNO_CHEAP_CALLS_CROSSED_NUM (a)++;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1245 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1246 }
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	1247
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1248 make_early_clobber_and_input_conflicts ();
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1249
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1250 curr_point++;
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1251
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1252 /* Mark each used value as live. */
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1253 FOR_EACH_INSN_USE (use, insn)
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1254 mark_ref_live (use);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1255
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1256 process_single_reg_class_operands (true, freq);
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	1257
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1258 set_p = mark_hard_reg_early_clobbers (insn, true);
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1259
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1260 if (set_p)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1261 {
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1262 mark_hard_reg_early_clobbers (insn, false);
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1263
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1264 /* Mark each hard reg as live again. For example, a
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1265 hard register can be in clobber and in an insn
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1266 input. */
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1267 FOR_EACH_INSN_USE (use, insn)
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1268 {
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1269 rtx ureg = DF_REF_REG (use);
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	1270
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1271 if (GET_CODE (ureg) == SUBREG)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1272 ureg = SUBREG_REG (ureg);
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1273 if (! REG_P (ureg) \|\| REGNO (ureg) >= FIRST_PSEUDO_REGISTER)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1274 continue;
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	1275
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1276 mark_ref_live (use);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1277 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1278 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1279
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1280 #ifdef REAL_PIC_OFFSET_TABLE_REGNUM
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1281 if (clear_pic_use_conflict_p)
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1282 {
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1283 regno = REGNO (pic_offset_table_rtx);
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1284 a = ira_curr_regno_allocno_map[regno];
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1285 CLEAR_HARD_REG_BIT (OBJECT_CONFLICT_HARD_REGS (ALLOCNO_OBJECT (a, 0)),
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1286 REAL_PIC_OFFSET_TABLE_REGNUM);
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1287 CLEAR_HARD_REG_BIT (OBJECT_TOTAL_CONFLICT_HARD_REGS
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1288 (ALLOCNO_OBJECT (a, 0)),
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1289 REAL_PIC_OFFSET_TABLE_REGNUM);
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1290 }
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1291 #endif
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1292 curr_point++;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1293 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1294
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1295 if (bb_has_eh_pred (bb))
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1296 for (j = 0; ; ++j)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1297 {
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1298 unsigned int regno = EH_RETURN_DATA_REGNO (j);
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1299 if (regno == INVALID_REGNUM)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1300 break;
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1301 make_hard_regno_born (regno);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1302 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1303
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1304 /* Allocnos can't go in stack regs at the start of a basic block
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1305 that is reached by an abnormal edge. Likewise for call
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1306 clobbered regs, because caller-save, fixup_abnormal_edges and
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1307 possibly the table driven EH machinery are not quite ready to
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1308 handle such allocnos live across such edges. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1309 if (bb_has_abnormal_pred (bb))
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1310 {
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1311 #ifdef STACK_REGS
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1312 EXECUTE_IF_SET_IN_SPARSESET (objects_live, px)
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1313 {
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1314 ira_allocno_t a = OBJECT_ALLOCNO (ira_object_id_map[px]);
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1315
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1316 ALLOCNO_NO_STACK_REG_P (a) = true;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1317 ALLOCNO_TOTAL_NO_STACK_REG_P (a) = true;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1318 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1319 for (px = FIRST_STACK_REG; px <= LAST_STACK_REG; px++)
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1320 make_hard_regno_born (px);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1321 #endif
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1322 /* No need to record conflicts for call clobbered regs if we
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1323 have nonlocal labels around, as we don't ever try to
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1324 allocate such regs in this case. */
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1325 if (!cfun->has_nonlocal_label
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1326 && has_abnormal_call_or_eh_pred_edge_p (bb))
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1327 for (px = 0; px < FIRST_PSEUDO_REGISTER; px++)
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1328 if (call_used_regs[px]
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1329 #ifdef REAL_PIC_OFFSET_TABLE_REGNUM
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1330 /* We should create a conflict of PIC pseudo with
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1331 PIC hard reg as PIC hard reg can have a wrong
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1332 value after jump described by the abnormal edge.
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1333 In this case we can not allocate PIC hard reg to
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1334 PIC pseudo as PIC pseudo will also have a wrong
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1335 value. This code is not critical as LRA can fix
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1336 it but it is better to have the right allocation
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1337 earlier. */
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1338 \|\| (px == REAL_PIC_OFFSET_TABLE_REGNUM
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1339 && pic_offset_table_rtx != NULL_RTX
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1340 && REGNO (pic_offset_table_rtx) >= FIRST_PSEUDO_REGISTER)
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1341 #endif
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1342 )
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1343 make_hard_regno_born (px);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1344 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1345
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1346 EXECUTE_IF_SET_IN_SPARSESET (objects_live, i)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1347 make_object_dead (ira_object_id_map[i]);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1348
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1349 curr_point++;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1350
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1351 }
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1352 /* Propagate register pressure to upper loop tree nodes. */
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1353 if (loop_tree_node != ira_loop_tree_root)
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1354 for (i = 0; i < ira_pressure_classes_num; i++)
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1355 {
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1356 enum reg_class pclass;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1357
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1358 pclass = ira_pressure_classes[i];
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1359 if (loop_tree_node->reg_pressure[pclass]
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1360 > loop_tree_node->parent->reg_pressure[pclass])
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1361 loop_tree_node->parent->reg_pressure[pclass]
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1362 = loop_tree_node->reg_pressure[pclass];
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1363 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1364 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1365
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1366 /* Create and set up IRA_START_POINT_RANGES and
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1367 IRA_FINISH_POINT_RANGES. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1368 static void
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1369 create_start_finish_chains (void)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1370 {
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1371 ira_object_t obj;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1372 ira_object_iterator oi;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1373 live_range_t r;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1374
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1375 ira_start_point_ranges
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1376 = (live_range_t ) ira_allocate (ira_max_point sizeof (live_range_t));
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1377 memset (ira_start_point_ranges, 0, ira_max_point * sizeof (live_range_t));
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1378 ira_finish_point_ranges
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1379 = (live_range_t ) ira_allocate (ira_max_point sizeof (live_range_t));
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1380 memset (ira_finish_point_ranges, 0, ira_max_point * sizeof (live_range_t));
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1381 FOR_EACH_OBJECT (obj, oi)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1382 for (r = OBJECT_LIVE_RANGES (obj); r != NULL; r = r->next)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1383 {
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1384 r->start_next = ira_start_point_ranges[r->start];
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1385 ira_start_point_ranges[r->start] = r;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1386 r->finish_next = ira_finish_point_ranges[r->finish];
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1387 ira_finish_point_ranges[r->finish] = r;
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1388 }
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1389 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1390
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1391 /* Rebuild IRA_START_POINT_RANGES and IRA_FINISH_POINT_RANGES after
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1392 new live ranges and program points were added as a result if new
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1393 insn generation. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1394 void
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1395 ira_rebuild_start_finish_chains (void)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1396 {
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1397 ira_free (ira_finish_point_ranges);
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1398 ira_free (ira_start_point_ranges);
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1399 create_start_finish_chains ();
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1400 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1401
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1402 /* Compress allocno live ranges by removing program points where
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1403 nothing happens. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1404 static void
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1405 remove_some_program_points_and_update_live_ranges (void)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1406 {
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1407 unsigned i;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1408 int n;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1409 int *map;
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1410 ira_object_t obj;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1411 ira_object_iterator oi;
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1412 live_range_t r, prev_r, next_r;
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1413 sbitmap_iterator sbi;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1414 bool born_p, dead_p, prev_born_p, prev_dead_p;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1415
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1416 auto_sbitmap born (ira_max_point);
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1417 auto_sbitmap dead (ira_max_point);
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1418 bitmap_clear (born);
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1419 bitmap_clear (dead);
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1420 FOR_EACH_OBJECT (obj, oi)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1421 for (r = OBJECT_LIVE_RANGES (obj); r != NULL; r = r->next)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1422 {
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1423 ira_assert (r->start <= r->finish);
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1424 bitmap_set_bit (born, r->start);
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1425 bitmap_set_bit (dead, r->finish);
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1426 }
55 77e2b8dfacca update it from 4.4.3 to 4.5.0 ryoma <e075725@ie.u-ryukyu.ac.jp> parents: 36 diff changeset	1427
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1428 auto_sbitmap born_or_dead (ira_max_point);
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1429 bitmap_ior (born_or_dead, born, dead);
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1430 map = (int ) ira_allocate (sizeof (int) ira_max_point);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1431 n = -1;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1432 prev_born_p = prev_dead_p = false;
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1433 EXECUTE_IF_SET_IN_BITMAP (born_or_dead, 0, i, sbi)
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1434 {
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1435 born_p = bitmap_bit_p (born, i);
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1436 dead_p = bitmap_bit_p (dead, i);
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1437 if ((prev_born_p && ! prev_dead_p && born_p && ! dead_p)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1438 \|\| (prev_dead_p && ! prev_born_p && dead_p && ! born_p))
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1439 map[i] = n;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1440 else
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1441 map[i] = ++n;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1442 prev_born_p = born_p;
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1443 prev_dead_p = dead_p;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1444 }
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1445
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1446 n++;
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1447 if (internal_flag_ira_verbose > 1 && ira_dump_file != NULL)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1448 fprintf (ira_dump_file, "Compressing live ranges: from %d to %d - %d%%\n",
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1449 ira_max_point, n, 100 * n / ira_max_point);
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1450 ira_max_point = n;
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1451
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1452 FOR_EACH_OBJECT (obj, oi)
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1453 for (r = OBJECT_LIVE_RANGES (obj), prev_r = NULL; r != NULL; r = next_r)
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1454 {
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1455 next_r = r->next;
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1456 r->start = map[r->start];
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1457 r->finish = map[r->finish];
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1458 if (prev_r == NULL \|\| prev_r->start > r->finish + 1)
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1459 {
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1460 prev_r = r;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1461 continue;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1462 }
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1463 prev_r->start = r->start;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1464 prev_r->next = next_r;
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1465 ira_finish_live_range (r);
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1466 }
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1467
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1468 ira_free (map);
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1469 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1470
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1471 /* Print live ranges R to file F. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1472 void
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1473 ira_print_live_range_list (FILE *f, live_range_t r)
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1474 {
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1475 for (; r != NULL; r = r->next)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1476 fprintf (f, " [%d..%d]", r->start, r->finish);
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1477 fprintf (f, "\n");
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1478 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1479
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1480 DEBUG_FUNCTION void
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1481 debug (live_range &ref)
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1482 {
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1483 ira_print_live_range_list (stderr, &ref);
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1484 }
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1485
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1486 DEBUG_FUNCTION void
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1487 debug (live_range *ptr)
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1488 {
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1489 if (ptr)
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1490 debug (*ptr);
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1491 else
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1492 fprintf (stderr, "<nil>\n");
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1493 }
04ced10e8804 gcc 7 kono parents: 67 diff changeset	1494
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1495 /* Print live ranges R to stderr. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1496 void
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1497 ira_debug_live_range_list (live_range_t r)
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1498 {
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1499 ira_print_live_range_list (stderr, r);
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1500 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1501
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1502 /* Print live ranges of object OBJ to file F. */
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1503 static void
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1504 print_object_live_ranges (FILE *f, ira_object_t obj)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1505 {
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1506 ira_print_live_range_list (f, OBJECT_LIVE_RANGES (obj));
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1507 }
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1508
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1509 /* Print live ranges of allocno A to file F. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1510 static void
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1511 print_allocno_live_ranges (FILE *f, ira_allocno_t a)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1512 {
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1513 int n = ALLOCNO_NUM_OBJECTS (a);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1514 int i;
111 04ced10e8804 gcc 7 kono parents: 67 diff changeset	1515
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1516 for (i = 0; i < n; i++)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1517 {
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1518 fprintf (f, " a%d(r%d", ALLOCNO_NUM (a), ALLOCNO_REGNO (a));
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1519 if (n > 1)
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1520 fprintf (f, " [%d]", i);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1521 fprintf (f, "):");
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1522 print_object_live_ranges (f, ALLOCNO_OBJECT (a, i));
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1523 }
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1524 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1525
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1526 /* Print live ranges of allocno A to stderr. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1527 void
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1528 ira_debug_allocno_live_ranges (ira_allocno_t a)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1529 {
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1530 print_allocno_live_ranges (stderr, a);
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1531 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1532
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1533 /* Print live ranges of all allocnos to file F. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1534 static void
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1535 print_live_ranges (FILE *f)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1536 {
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1537 ira_allocno_t a;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1538 ira_allocno_iterator ai;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1539
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1540 FOR_EACH_ALLOCNO (a, ai)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1541 print_allocno_live_ranges (f, a);
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1542 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1543
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1544 /* Print live ranges of all allocnos to stderr. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1545 void
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1546 ira_debug_live_ranges (void)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1547 {
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1548 print_live_ranges (stderr);
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1549 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1550
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1551 /* The main entry function creates live ranges, set up
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1552 CONFLICT_HARD_REGS and TOTAL_CONFLICT_HARD_REGS for objects, and
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1553 calculate register pressure info. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1554 void
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1555 ira_create_allocno_live_ranges (void)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1556 {
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1557 objects_live = sparseset_alloc (ira_objects_num);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1558 allocnos_processed = sparseset_alloc (ira_allocnos_num);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1559 curr_point = 0;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1560 last_call_num = 0;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1561 allocno_saved_at_call
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1562 = (int ) ira_allocate (ira_allocnos_num sizeof (int));
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1563 memset (allocno_saved_at_call, 0, ira_allocnos_num * sizeof (int));
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1564 ira_traverse_loop_tree (true, ira_loop_tree_root, NULL,
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1565 process_bb_node_lives);
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1566 ira_max_point = curr_point;
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1567 create_start_finish_chains ();
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1568 if (internal_flag_ira_verbose > 2 && ira_dump_file != NULL)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1569 print_live_ranges (ira_dump_file);
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1570 /* Clean up. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1571 ira_free (allocno_saved_at_call);
67 f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1572 sparseset_free (objects_live);
f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318 nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> parents: 63 diff changeset	1573 sparseset_free (allocnos_processed);
0 a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1574 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1575
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1576 /* Compress allocno live ranges. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1577 void
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1578 ira_compress_allocno_live_ranges (void)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1579 {
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1580 remove_some_program_points_and_update_live_ranges ();
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1581 ira_rebuild_start_finish_chains ();
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1582 if (internal_flag_ira_verbose > 2 && ira_dump_file != NULL)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1583 {
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1584 fprintf (ira_dump_file, "Ranges after the compression:\n");
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1585 print_live_ranges (ira_dump_file);
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1586 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1587 }
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1588
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1589 /* Free arrays IRA_START_POINT_RANGES and IRA_FINISH_POINT_RANGES. */
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1590 void
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1591 ira_finish_allocno_live_ranges (void)
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1592 {
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1593 ira_free (ira_finish_point_ranges);
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1594 ira_free (ira_start_point_ranges);
a06113de4d67 first commit kent <kent@cr.ie.u-ryukyu.ac.jp> parents: diff changeset	1595 }

Mercurial > hg > CbC > CbC_gcc

annotate gcc/ira-lives.c @ 111:04ced10e8804