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

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update gcc from gcc-4.5.0 to gcc-4.6
author ryoma <e075725@ie.u-ryukyu.ac.jp>
date Mon, 24 May 2010 12:47:05 +0900
parents 77e2b8dfacca
children f6334be47118
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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.
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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 "diagnostic.h"
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65 #include "tree-pretty-print.h"
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66 #include "tree-flow.h"
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67 #include "tree-dump.h"
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68 #include "cfgloop.h"
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69 #include "cfglayout.h"
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70 #include "tree-vectorizer.h"
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71 #include "tree-pass.h"
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72 #include "timevar.h"
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73
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74 /* vect_dump will be set to stderr or dump_file if exist. */
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75 FILE *vect_dump;
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76
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77 /* vect_verbosity_level set to an invalid value
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78 to mark that it's uninitialized. */
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79 static enum verbosity_levels vect_verbosity_level = MAX_VERBOSITY_LEVEL;
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80 static enum verbosity_levels user_vect_verbosity_level = MAX_VERBOSITY_LEVEL;
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81
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82 /* Loop or bb location. */
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83 LOC vect_location;
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84
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85 /* Vector mapping GIMPLE stmt to stmt_vec_info. */
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86 VEC(vec_void_p,heap) *stmt_vec_info_vec;
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87
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88
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89
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90 /* Function vect_set_verbosity_level.
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91
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92 Called from opts.c upon detection of the
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93 -ftree-vectorizer-verbose=N option. */
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94
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95 void
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96 vect_set_verbosity_level (const char *val)
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97 {
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98 unsigned int vl;
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99
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100 vl = atoi (val);
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101 if (vl < MAX_VERBOSITY_LEVEL)
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102 user_vect_verbosity_level = (enum verbosity_levels) vl;
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103 else
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104 user_vect_verbosity_level
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105 = (enum verbosity_levels) (MAX_VERBOSITY_LEVEL - 1);
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106 }
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107
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108
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109 /* Function vect_set_dump_settings.
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110
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111 Fix the verbosity level of the vectorizer if the
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112 requested level was not set explicitly using the flag
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113 -ftree-vectorizer-verbose=N.
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114 Decide where to print the debugging information (dump_file/stderr).
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115 If the user defined the verbosity level, but there is no dump file,
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116 print to stderr, otherwise print to the dump file. */
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117
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118 static void
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119 vect_set_dump_settings (bool slp)
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120 {
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121 vect_dump = dump_file;
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122
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123 /* Check if the verbosity level was defined by the user: */
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124 if (user_vect_verbosity_level != MAX_VERBOSITY_LEVEL)
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125 {
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126 vect_verbosity_level = user_vect_verbosity_level;
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127 /* Ignore user defined verbosity if dump flags require higher level of
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128 verbosity. */
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129 if (dump_file)
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130 {
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131 if (((dump_flags & TDF_DETAILS)
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132 && vect_verbosity_level >= REPORT_DETAILS)
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133 || ((dump_flags & TDF_STATS)
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parents: 0
diff changeset
134 && vect_verbosity_level >= REPORT_UNVECTORIZED_LOCATIONS))
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
135 return;
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
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136 }
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
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137 else
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
138 {
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
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139 /* If there is no dump file, print to stderr in case of loop
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
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140 vectorization. */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
141 if (!slp)
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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142 vect_dump = stderr;
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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143
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
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144 return;
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
145 }
0
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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146 }
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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147
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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148 /* User didn't specify verbosity level: */
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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149 if (dump_file && (dump_flags & TDF_DETAILS))
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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150 vect_verbosity_level = REPORT_DETAILS;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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151 else if (dump_file && (dump_flags & TDF_STATS))
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152 vect_verbosity_level = REPORT_UNVECTORIZED_LOCATIONS;
0
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153 else
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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154 vect_verbosity_level = REPORT_NONE;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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155
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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156 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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157 }
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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158
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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159
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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160 /* Function debug_loop_details.
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parents:
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161
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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162 For vectorization debug dumps. */
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parents:
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163
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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164 bool
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165 vect_print_dump_info (enum verbosity_levels vl)
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166 {
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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167 if (vl > vect_verbosity_level)
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168 return false;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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169
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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170 if (!current_function_decl || !vect_dump)
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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171 return false;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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172
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173 if (vect_location == UNKNOWN_LOC)
0
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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174 fprintf (vect_dump, "\n%s:%d: note: ",
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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175 DECL_SOURCE_FILE (current_function_decl),
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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176 DECL_SOURCE_LINE (current_function_decl));
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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177 else
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178 fprintf (vect_dump, "\n%s:%d: note: ",
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179 LOC_FILE (vect_location), LOC_LINE (vect_location));
0
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180
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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181 return true;
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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
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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184
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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185 /* Function vectorize_loops.
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186
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187 Entry point to loop vectorization phase. */
0
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188
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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189 unsigned
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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190 vectorize_loops (void)
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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191 {
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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192 unsigned int i;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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193 unsigned int num_vectorized_loops = 0;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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194 unsigned int vect_loops_num;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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195 loop_iterator li;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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196 struct loop *loop;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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197
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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198 vect_loops_num = number_of_loops ();
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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199
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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200 /* Bail out if there are no loops. */
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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201 if (vect_loops_num <= 1)
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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202 return 0;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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203
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204 /* Fix the verbosity level if not defined explicitly by the user. */
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205 vect_set_dump_settings (false);
0
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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206
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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207 init_stmt_vec_info_vec ();
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208
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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209 /* ----------- Analyze loops. ----------- */
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210
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211 /* If some loop was duplicated, it gets bigger number
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212 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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213 only over initial loops skipping newly generated ones. */
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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214 FOR_EACH_LOOP (li, loop, 0)
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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215 if (optimize_loop_nest_for_speed_p (loop))
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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216 {
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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217 loop_vec_info loop_vinfo;
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218
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219 vect_location = find_loop_location (loop);
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220 loop_vinfo = vect_analyze_loop (loop);
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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221 loop->aux = loop_vinfo;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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222
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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223 if (!loop_vinfo || !LOOP_VINFO_VECTORIZABLE_P (loop_vinfo))
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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224 continue;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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225
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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226 vect_transform_loop (loop_vinfo);
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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227 num_vectorized_loops++;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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228 }
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diff changeset
229
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230 vect_location = UNKNOWN_LOC;
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231
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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232 statistics_counter_event (cfun, "Vectorized loops", num_vectorized_loops);
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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233 if (vect_print_dump_info (REPORT_UNVECTORIZED_LOCATIONS)
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234 || (num_vectorized_loops > 0
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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235 && vect_print_dump_info (REPORT_VECTORIZED_LOCATIONS)))
0
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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236 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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237 num_vectorized_loops);
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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238
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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239 /* ----------- Finalize. ----------- */
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240
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
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241 mark_sym_for_renaming (gimple_vop (cfun));
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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242
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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243 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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244 {
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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245 loop_vec_info loop_vinfo;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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246
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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247 loop = get_loop (i);
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
248 if (!loop)
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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249 continue;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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250 loop_vinfo = (loop_vec_info) loop->aux;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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251 destroy_loop_vec_info (loop_vinfo, true);
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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252 loop->aux = NULL;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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253 }
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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diff changeset
254
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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255 free_stmt_vec_info_vec ();
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
256
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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257 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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258 }
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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259
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diff changeset
260
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261 /* Entry point to basic block SLP phase. */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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262
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263 static unsigned int
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264 execute_vect_slp (void)
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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265 {
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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266 basic_block bb;
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267
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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diff changeset
268 /* Fix the verbosity level if not defined explicitly by the user. */
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269 vect_set_dump_settings (true);
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270
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271 init_stmt_vec_info_vec ();
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272
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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273 FOR_EACH_BB (bb)
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274 {
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275 vect_location = find_bb_location (bb);
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276
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277 if (vect_slp_analyze_bb (bb))
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
278 {
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
279 vect_slp_transform_bb (bb);
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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 if (vect_print_dump_info (REPORT_VECTORIZED_LOCATIONS))
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
282 fprintf (vect_dump, "basic block vectorized using SLP\n");
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
283 }
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
284 }
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
285
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
286 free_stmt_vec_info_vec ();
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
287 return 0;
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
288 }
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
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289
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
290 static bool
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
291 gate_vect_slp (void)
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
292 {
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
293 /* 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>
parents: 0
diff changeset
294 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>
parents: 0
diff changeset
295 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
296 || flag_tree_slp_vectorize == 1);
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
297 }
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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 struct gimple_opt_pass pass_slp_vectorize =
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
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300 {
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
301 {
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
302 GIMPLE_PASS,
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
303 "slp", /* name */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
304 gate_vect_slp, /* gate */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
305 execute_vect_slp, /* execute */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
306 NULL, /* sub */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
307 NULL, /* next */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
308 0, /* static_pass_number */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
309 TV_TREE_SLP_VECTORIZATION, /* tv_id */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
310 PROP_ssa | PROP_cfg, /* properties_required */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
311 0, /* properties_provided */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
312 0, /* properties_destroyed */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
313 0, /* todo_flags_start */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
314 TODO_ggc_collect
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
315 | TODO_verify_ssa
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
316 | TODO_dump_func
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
317 | TODO_update_ssa
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
318 | TODO_verify_stmts /* todo_flags_finish */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
319 }
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
320 };
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
321
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
322
0
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
323 /* Increase alignment of global arrays to improve vectorization potential.
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
324 TODO:
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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325 - 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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326 - 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
327 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
328 array padding. */
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
329
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
330 static unsigned int
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
331 increase_alignment (void)
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
332 {
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
333 struct varpool_node *vnode;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
334
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
335 /* Increase the alignment of all global arrays for vectorization. */
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
336 for (vnode = varpool_nodes_queue;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
337 vnode;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
338 vnode = vnode->next_needed)
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
339 {
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
340 tree vectype, decl = vnode->decl;
55
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
341 tree t;
0
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
342 unsigned int alignment;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
343
55
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
344 t = TREE_TYPE(decl);
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
345 if (TREE_CODE (t) != ARRAY_TYPE)
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
346 continue;
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
347 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
348 if (!vectype)
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
349 continue;
0
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
350 alignment = TYPE_ALIGN (vectype);
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
351 if (DECL_ALIGN (decl) >= alignment)
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
352 continue;
0
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
353
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
354 if (vect_can_force_dr_alignment_p (decl, alignment))
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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 DECL_ALIGN (decl) = TYPE_ALIGN (vectype);
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
357 DECL_USER_ALIGN (decl) = 1;
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
358 if (dump_file)
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
359 {
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
360 fprintf (dump_file, "Increasing alignment of decl: ");
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
361 print_generic_expr (dump_file, decl, TDF_SLIM);
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
362 fprintf (dump_file, "\n");
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
363 }
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
364 }
0
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
365 }
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
366 return 0;
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
367 }
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
368
55
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
369
0
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
370 static bool
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
371 gate_increase_alignment (void)
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
372 {
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
373 return flag_section_anchors && flag_tree_vectorize;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
374 }
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
375
55
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
376
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
377 struct simple_ipa_opt_pass pass_ipa_increase_alignment =
0
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
378 {
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
379 {
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
380 SIMPLE_IPA_PASS,
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
381 "increase_alignment", /* name */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
382 gate_increase_alignment, /* gate */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
383 increase_alignment, /* execute */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
384 NULL, /* sub */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
385 NULL, /* next */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
386 0, /* static_pass_number */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
387 TV_NONE, /* tv_id */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
388 0, /* properties_required */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
389 0, /* properties_provided */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
390 0, /* properties_destroyed */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
391 0, /* todo_flags_start */
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
392 0 /* todo_flags_finish */
0
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
393 }
a06113de4d67 first commit
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
394 };