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annotate gcc/tree-vectorizer.c @ 67:f6334be47118

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update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
author nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
date Tue, 22 Mar 2011 17:18:12 +0900
parents b7f97abdc517
children 04ced10e8804
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1 /* Vectorizer
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2 Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
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3 Free Software Foundation, Inc.
0
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4 Contributed by Dorit Naishlos <dorit@il.ibm.com>
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5
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6 This file is part of GCC.
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7
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8 GCC is free software; you can redistribute it and/or modify it under
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9 the terms of the GNU General Public License as published by the Free
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10 Software Foundation; either version 3, or (at your option) any later
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11 version.
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12
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13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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16 for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with GCC; see the file COPYING3. If not see
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20 <http://www.gnu.org/licenses/>. */
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21
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22 /* Loop and basic block vectorizer.
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23
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24 This file contains drivers for the three vectorizers:
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25 (1) loop vectorizer (inter-iteration parallelism),
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26 (2) loop-aware SLP (intra-iteration parallelism) (invoked by the loop
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27 vectorizer)
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28 (3) BB vectorizer (out-of-loops), aka SLP
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29
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30 The rest of the vectorizer's code is organized as follows:
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31 - tree-vect-loop.c - loop specific parts such as reductions, etc. These are
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32 used by drivers (1) and (2).
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33 - tree-vect-loop-manip.c - vectorizer's loop control-flow utilities, used by
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34 drivers (1) and (2).
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35 - tree-vect-slp.c - BB vectorization specific analysis and transformation,
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36 used by drivers (2) and (3).
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37 - tree-vect-stmts.c - statements analysis and transformation (used by all).
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38 - tree-vect-data-refs.c - vectorizer specific data-refs analysis and
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39 manipulations (used by all).
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40 - tree-vect-patterns.c - vectorizable code patterns detector (used by all)
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41
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42 Here's a poor attempt at illustrating that:
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44 tree-vectorizer.c:
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45 loop_vect() loop_aware_slp() slp_vect()
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46 | / \ /
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47 | / \ /
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48 tree-vect-loop.c tree-vect-slp.c
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49 | \ \ / / |
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50 | \ \/ / |
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51 | \ /\ / |
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52 | \ / \ / |
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53 tree-vect-stmts.c tree-vect-data-refs.c
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54 \ /
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55 tree-vect-patterns.c
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56 */
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57
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58 #include "config.h"
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59 #include "system.h"
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60 #include "coretypes.h"
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61 #include "tm.h"
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62 #include "ggc.h"
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63 #include "tree.h"
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64 #include "tree-pretty-print.h"
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65 #include "tree-flow.h"
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66 #include "tree-dump.h"
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67 #include "cfgloop.h"
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68 #include "cfglayout.h"
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69 #include "tree-vectorizer.h"
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70 #include "tree-pass.h"
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71 #include "timevar.h"
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72
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73 /* vect_dump will be set to stderr or dump_file if exist. */
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74 FILE *vect_dump;
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75
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76 /* vect_verbosity_level set to an invalid value
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77 to mark that it's uninitialized. */
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78 static enum vect_verbosity_levels vect_verbosity_level = MAX_VERBOSITY_LEVEL;
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79
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80 /* Loop or bb location. */
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81 LOC vect_location;
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82
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83 /* Vector mapping GIMPLE stmt to stmt_vec_info. */
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84 VEC(vec_void_p,heap) *stmt_vec_info_vec;
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85
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86
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87
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88 /* Function vect_set_dump_settings.
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89
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90 Fix the verbosity level of the vectorizer if the
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91 requested level was not set explicitly using the flag
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92 -ftree-vectorizer-verbose=N.
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93 Decide where to print the debugging information (dump_file/stderr).
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94 If the user defined the verbosity level, but there is no dump file,
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95 print to stderr, otherwise print to the dump file. */
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96
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97 static void
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98 vect_set_dump_settings (bool slp)
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99 {
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100 vect_dump = dump_file;
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101
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102 /* Check if the verbosity level was defined by the user: */
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103 if (user_vect_verbosity_level != MAX_VERBOSITY_LEVEL)
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104 {
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105 vect_verbosity_level = user_vect_verbosity_level;
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106 /* Ignore user defined verbosity if dump flags require higher level of
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107 verbosity. */
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108 if (dump_file)
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109 {
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110 if (((dump_flags & TDF_DETAILS)
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111 && vect_verbosity_level >= REPORT_DETAILS)
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112 || ((dump_flags & TDF_STATS)
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113 && vect_verbosity_level >= REPORT_UNVECTORIZED_LOCATIONS))
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114 return;
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115 }
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116 else
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117 {
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118 /* If there is no dump file, print to stderr in case of loop
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119 vectorization. */
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120 if (!slp)
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121 vect_dump = stderr;
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122
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123 return;
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124 }
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125 }
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126
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127 /* User didn't specify verbosity level: */
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128 if (dump_file && (dump_flags & TDF_DETAILS))
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129 vect_verbosity_level = REPORT_DETAILS;
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130 else if (dump_file && (dump_flags & TDF_STATS))
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131 vect_verbosity_level = REPORT_UNVECTORIZED_LOCATIONS;
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132 else
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parents:
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133 vect_verbosity_level = REPORT_NONE;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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134
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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135 gcc_assert (dump_file || vect_verbosity_level == REPORT_NONE);
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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136 }
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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137
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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138
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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139 /* Function debug_loop_details.
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parents:
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140
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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141 For vectorization debug dumps. */
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parents:
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142
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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143 bool
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parents: 63
diff changeset
144 vect_print_dump_info (enum vect_verbosity_levels vl)
0
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145 {
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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146 if (vl > vect_verbosity_level)
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147 return false;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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148
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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149 if (!current_function_decl || !vect_dump)
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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150 return false;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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151
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
152 if (vect_location == UNKNOWN_LOC)
0
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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153 fprintf (vect_dump, "\n%s:%d: note: ",
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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154 DECL_SOURCE_FILE (current_function_decl),
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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155 DECL_SOURCE_LINE (current_function_decl));
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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156 else
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diff changeset
157 fprintf (vect_dump, "\n%s:%d: note: ",
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158 LOC_FILE (vect_location), LOC_LINE (vect_location));
0
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159
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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160 return true;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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161 }
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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162
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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163
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164 /* Function vectorize_loops.
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165
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parents: 0
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166 Entry point to loop vectorization phase. */
0
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parents:
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167
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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168 unsigned
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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169 vectorize_loops (void)
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parents:
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170 {
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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171 unsigned int i;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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172 unsigned int num_vectorized_loops = 0;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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173 unsigned int vect_loops_num;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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174 loop_iterator li;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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175 struct loop *loop;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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176
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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177 vect_loops_num = number_of_loops ();
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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178
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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179 /* Bail out if there are no loops. */
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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180 if (vect_loops_num <= 1)
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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181 return 0;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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182
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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183 /* Fix the verbosity level if not defined explicitly by the user. */
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parents: 0
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184 vect_set_dump_settings (false);
0
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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185
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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186 init_stmt_vec_info_vec ();
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187
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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188 /* ----------- Analyze loops. ----------- */
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parents:
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189
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parents: 0
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190 /* If some loop was duplicated, it gets bigger number
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents: 63
diff changeset
191 than all previously defined loops. This fact allows us to run
0
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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192 only over initial loops skipping newly generated ones. */
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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193 FOR_EACH_LOOP (li, loop, 0)
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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194 if (optimize_loop_nest_for_speed_p (loop))
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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195 {
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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196 loop_vec_info loop_vinfo;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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197
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198 vect_location = find_loop_location (loop);
0
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199 loop_vinfo = vect_analyze_loop (loop);
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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200 loop->aux = loop_vinfo;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
201
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
202 if (!loop_vinfo || !LOOP_VINFO_VECTORIZABLE_P (loop_vinfo))
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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203 continue;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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204
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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205 vect_transform_loop (loop_vinfo);
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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206 num_vectorized_loops++;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
207 }
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parents: 0
diff changeset
208
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209 vect_location = UNKNOWN_LOC;
0
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210
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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211 statistics_counter_event (cfun, "Vectorized loops", num_vectorized_loops);
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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diff changeset
212 if (vect_print_dump_info (REPORT_UNVECTORIZED_LOCATIONS)
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213 || (num_vectorized_loops > 0
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
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214 && vect_print_dump_info (REPORT_VECTORIZED_LOCATIONS)))
0
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215 fprintf (vect_dump, "vectorized %u loops in function.\n",
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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216 num_vectorized_loops);
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217
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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218 /* ----------- Finalize. ----------- */
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parents:
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219
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
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220 mark_sym_for_renaming (gimple_vop (cfun));
0
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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diff changeset
221
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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222 for (i = 1; i < vect_loops_num; i++)
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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223 {
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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224 loop_vec_info loop_vinfo;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
225
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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226 loop = get_loop (i);
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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diff changeset
227 if (!loop)
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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228 continue;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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229 loop_vinfo = (loop_vec_info) loop->aux;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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230 destroy_loop_vec_info (loop_vinfo, true);
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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diff changeset
231 loop->aux = NULL;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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232 }
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
233
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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diff changeset
234 free_stmt_vec_info_vec ();
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diff changeset
235
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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236 return num_vectorized_loops > 0 ? TODO_cleanup_cfg : 0;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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237 }
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
238
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
239
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240 /* Entry point to basic block SLP phase. */
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241
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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242 static unsigned int
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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243 execute_vect_slp (void)
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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244 {
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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245 basic_block bb;
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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diff changeset
246
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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247 /* Fix the verbosity level if not defined explicitly by the user. */
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248 vect_set_dump_settings (true);
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249
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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250 init_stmt_vec_info_vec ();
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251
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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252 FOR_EACH_BB (bb)
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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253 {
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254 vect_location = find_bb_location (bb);
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255
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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256 if (vect_slp_analyze_bb (bb))
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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257 {
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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258 vect_slp_transform_bb (bb);
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
259
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
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260 if (vect_print_dump_info (REPORT_VECTORIZED_LOCATIONS))
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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261 fprintf (vect_dump, "basic block vectorized using SLP\n");
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
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262 }
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
263 }
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
264
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
265 free_stmt_vec_info_vec ();
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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266 return 0;
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
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267 }
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diff changeset
268
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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269 static bool
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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270 gate_vect_slp (void)
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271 {
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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272 /* Apply SLP either if the vectorizer is on and the user didn't specify
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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273 whether to run SLP or not, or if the SLP flag was set by the user. */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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diff changeset
274 return ((flag_tree_vectorize != 0 && flag_tree_slp_vectorize != 0)
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
275 || flag_tree_slp_vectorize == 1);
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
276 }
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
277
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
278 struct gimple_opt_pass pass_slp_vectorize =
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
279 {
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
280 {
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
281 GIMPLE_PASS,
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
282 "slp", /* name */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
283 gate_vect_slp, /* gate */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
284 execute_vect_slp, /* execute */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
285 NULL, /* sub */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
286 NULL, /* next */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
287 0, /* static_pass_number */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
288 TV_TREE_SLP_VECTORIZATION, /* tv_id */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
289 PROP_ssa | PROP_cfg, /* properties_required */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
290 0, /* properties_provided */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
291 0, /* properties_destroyed */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
292 0, /* todo_flags_start */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
293 TODO_ggc_collect
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
294 | TODO_verify_ssa
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
295 | TODO_dump_func
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
296 | TODO_update_ssa
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
297 | TODO_verify_stmts /* todo_flags_finish */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
298 }
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
299 };
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
300
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
301
0
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
302 /* Increase alignment of global arrays to improve vectorization potential.
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
303 TODO:
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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304 - Consider also structs that have an array field.
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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305 - Use ipa analysis to prune arrays that can't be vectorized?
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
306 This should involve global alignment analysis and in the future also
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
307 array padding. */
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
308
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
309 static unsigned int
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
310 increase_alignment (void)
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
311 {
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
312 struct varpool_node *vnode;
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
313
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
314 /* Increase the alignment of all global arrays for vectorization. */
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
315 for (vnode = varpool_nodes_queue;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
316 vnode;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
317 vnode = vnode->next_needed)
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
318 {
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
319 tree vectype, decl = vnode->decl;
55
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
320 tree t;
0
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
321 unsigned int alignment;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
322
55
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
323 t = TREE_TYPE(decl);
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
324 if (TREE_CODE (t) != ARRAY_TYPE)
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
325 continue;
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
326 vectype = get_vectype_for_scalar_type (strip_array_types (t));
0
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
327 if (!vectype)
55
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
328 continue;
0
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
329 alignment = TYPE_ALIGN (vectype);
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
330 if (DECL_ALIGN (decl) >= alignment)
55
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
331 continue;
0
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
332
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
333 if (vect_can_force_dr_alignment_p (decl, alignment))
55
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
334 {
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
335 DECL_ALIGN (decl) = TYPE_ALIGN (vectype);
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
336 DECL_USER_ALIGN (decl) = 1;
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
337 if (dump_file)
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
338 {
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
339 fprintf (dump_file, "Increasing alignment of decl: ");
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
340 print_generic_expr (dump_file, decl, TDF_SLIM);
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
341 fprintf (dump_file, "\n");
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
342 }
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
343 }
0
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
344 }
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
345 return 0;
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
346 }
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
347
55
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
348
0
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
349 static bool
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
350 gate_increase_alignment (void)
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
351 {
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
352 return flag_section_anchors && flag_tree_vectorize;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
353 }
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
354
55
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
355
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
356 struct simple_ipa_opt_pass pass_ipa_increase_alignment =
0
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 SIMPLE_IPA_PASS,
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
360 "increase_alignment", /* name */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
361 gate_increase_alignment, /* gate */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
362 increase_alignment, /* execute */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
363 NULL, /* sub */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
364 NULL, /* next */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
365 0, /* static_pass_number */
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
366 TV_IPA_OPT, /* tv_id */
55
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
367 0, /* properties_required */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
368 0, /* properties_provided */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
369 0, /* properties_destroyed */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
370 0, /* todo_flags_start */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
371 0 /* todo_flags_finish */
0
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
372 }
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
373 };