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1 # Copyright (C) 2003, 2004, 2007, 2008, 2009 Free Software Foundation, Inc.
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2 # Contributed by Kelley Cook, June 2004.
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3 # Original code from Neil Booth, May 2003.
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4 #
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5 # This program is free software; you can redistribute it and/or modify it
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6 # under the terms of the GNU General Public License as published by the
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7 # Free Software Foundation; either version 3, or (at your option) any
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8 # later version.
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9 #
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10 # This program is distributed in the hope that it will be useful,
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11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 # GNU General Public License for more details.
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14 #
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15 # You should have received a copy of the GNU General Public License
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16 # along with this program; see the file COPYING3. If not see
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17 # <http://www.gnu.org/licenses/>.
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18
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19 # This Awk script reads in the option records generated from
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20 # opt-gather.awk, combines the flags of duplicate options and generates a
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21 # C file.
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22 #
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23 # This program uses functions from opt-functions.awk
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24 #
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25 # Usage: awk -f opt-functions.awk -f optc-gen.awk \
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26 # [-v header_name=header.h] < inputfile > options.c
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27
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28 BEGIN {
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29 n_opts = 0
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30 n_langs = 0
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31 n_target_save = 0
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32 quote = "\042"
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33 comma = ","
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34 FS=SUBSEP
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35 # Default the name of header created from opth-gen.awk to options.h
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36 if (header_name == "") header_name="options.h"
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37 }
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38
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39 # Collect the text and flags of each option into an array
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40 {
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41 if ($1 == "Language") {
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42 langs[n_langs] = $2
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43 n_langs++;
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44 }
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45 else if ($1 == "TargetSave") {
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46 # Make sure the declarations are put in source order
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47 target_save_decl[n_target_save] = $2
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48 n_target_save++
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49 }
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50 else {
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51 name = opt_args("Mask", $1)
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52 if (name == "") {
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53 opts[n_opts] = $1
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54 flags[n_opts] = $2
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55 help[n_opts] = $3
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56 for (i = 4; i <= NF; i++)
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57 help[n_opts] = help[n_opts] " " $i
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58 n_opts++;
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59 }
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60 }
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61 }
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62
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63 # Dump that array of options into a C file.
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64 END {
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65 print "/* This file is auto-generated by optc-gen.awk. */"
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66 print ""
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67 n_headers = split(header_name, headers, " ")
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68 for (i = 1; i <= n_headers; i++)
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69 print "#include " quote headers[i] quote
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70 print "#include " quote "opts.h" quote
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71 print "#include " quote "intl.h" quote
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72 print ""
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73 print "#ifdef GCC_DRIVER"
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74 print "int target_flags;"
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75 print "#else"
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76 print "#include " quote "flags.h" quote
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77 print "#include " quote "target.h" quote
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78 print "#endif /* GCC_DRIVER */"
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79 print ""
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80
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81 have_save = 0;
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82 for (i = 0; i < n_opts; i++) {
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83 if (flag_set_p("Save", flags[i]))
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84 have_save = 1;
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85
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86 name = var_name(flags[i]);
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87 if (name == "")
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88 continue;
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89
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90 if (flag_set_p("VarExists", flags[i])) {
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91 # Need it for the gcc driver.
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92 if (name in var_seen)
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93 continue;
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94 init = ""
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95 gcc_driver = 1
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96 }
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97 else {
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98 init = opt_args("Init", flags[i])
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99 if (init != "")
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100 init = " = " init;
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101 else if (name in var_seen)
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102 continue;
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103 gcc_driver = 0
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104 }
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105
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106 if (gcc_driver == 1)
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107 print "#ifdef GCC_DRIVER"
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108 print "/* Set by -" opts[i] "."
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109 print " " help[i] " */"
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110 print var_type(flags[i]) name init ";"
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111 if (gcc_driver == 1)
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112 print "#endif /* GCC_DRIVER */"
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113 print ""
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114
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115 var_seen[name] = 1;
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116 }
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117
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118 print ""
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119 print "/* Local state variables. */"
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120 for (i = 0; i < n_opts; i++) {
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121 name = static_var(opts[i], flags[i]);
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122 if (name != "")
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123 print "static " var_type(flags[i]) name ";"
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124 }
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125 print ""
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126
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127 print "const char * const lang_names[] =\n{"
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128 for (i = 0; i < n_langs; i++) {
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129 macros[i] = "CL_" langs[i]
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130 gsub( "[^A-Za-z0-9_]", "X", macros[i] )
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131 s = substr(" ", length (macros[i]))
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132 print " " quote langs[i] quote ","
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133 }
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134
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135 print " 0\n};\n"
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136 print "const unsigned int cl_options_count = N_OPTS;\n"
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137 print "const unsigned int cl_lang_count = " n_langs ";\n"
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138
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139 print "const struct cl_option cl_options[] =\n{"
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140
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141 j = 0
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142 for (i = 0; i < n_opts; i++) {
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143 back_chain[i] = "N_OPTS";
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144 indices[opts[i]] = j;
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145 # Combine the flags of identical switches. Switches
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146 # appear many times if they are handled by many front
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147 # ends, for example.
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148 while( i + 1 != n_opts && opts[i] == opts[i + 1] ) {
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149 flags[i + 1] = flags[i] " " flags[i + 1];
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150 if (help[i + 1] == "")
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151 help[i + 1] = help[i]
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152 i++;
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153 back_chain[i] = "N_OPTS";
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154 indices[opts[i]] = j;
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155 }
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156 j++;
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157 }
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158
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159 for (i = 0; i < n_opts; i++) {
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160 # With identical flags, pick only the last one. The
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161 # earlier loop ensured that it has all flags merged,
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162 # and a nonempty help text if one of the texts was nonempty.
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163 while( i + 1 != n_opts && opts[i] == opts[i + 1] ) {
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164 i++;
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165 }
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166
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167 len = length (opts[i]);
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168 enum = "OPT_" opts[i]
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169 if (opts[i] == "finline-limit=" || opts[i] == "Wlarger-than=")
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170 enum = enum "eq"
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171 gsub ("[^A-Za-z0-9]", "_", enum)
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172
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173 # If this switch takes joined arguments, back-chain all
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174 # subsequent switches to it for which it is a prefix. If
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175 # a later switch S is a longer prefix of a switch T, T
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176 # will be back-chained to S in a later iteration of this
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177 # for() loop, which is what we want.
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178 if (flag_set_p("Joined.*", flags[i])) {
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179 for (j = i + 1; j < n_opts; j++) {
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180 if (substr (opts[j], 1, len) != opts[i])
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181 break;
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182 back_chain[j] = enum;
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183 }
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184 }
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185
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186 s = substr(" ", length (opts[i]))
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187 if (i + 1 == n_opts)
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188 comma = ""
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189
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190 if (help[i] == "")
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191 hlp = "0"
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192 else
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193 hlp = quote help[i] quote;
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194
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195 neg = opt_args("Negative", flags[i]);
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196 if (neg != "")
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197 idx = indices[neg]
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198 else {
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199 if (flag_set_p("RejectNegative", flags[i]))
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200 idx = -1;
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201 else {
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202 if (opts[i] ~ "^[Wfm]")
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203 idx = indices[opts[i]];
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204 else
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205 idx = -1;
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206 }
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207 }
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208 # Split the printf after %u to work around an ia64-hp-hpux11.23
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209 # awk bug.
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210 printf(" { %c-%s%c,\n %s,\n %s, %u,",
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211 quote, opts[i], quote, hlp, back_chain[i], len)
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212 printf(" %d,\n", idx)
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213 condition = opt_args("Condition", flags[i])
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214 cl_flags = switch_flags(flags[i])
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215 if (condition != "")
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216 printf("#if %s\n" \
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217 " %s,\n" \
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218 "#else\n" \
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219 " CL_DISABLED,\n" \
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220 "#endif\n",
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221 condition, cl_flags, cl_flags)
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222 else
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223 printf(" %s,\n", cl_flags)
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224 printf(" %s, %s }%s\n", var_ref(opts[i], flags[i]),
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225 var_set(flags[i]), comma)
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226 }
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227
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228 print "};"
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229
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230 print "";
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231 print "#if !defined(GCC_DRIVER) && !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS)"
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232 print "";
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233 print "/* Save optimization variables into a structure. */"
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234 print "void";
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235 print "cl_optimization_save (struct cl_optimization *ptr)";
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236 print "{";
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237
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238 n_opt_char = 2;
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239 n_opt_short = 0;
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240 n_opt_int = 0;
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241 n_opt_other = 0;
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242 var_opt_char[0] = "optimize";
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243 var_opt_char[1] = "optimize_size";
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244 var_opt_range["optimize"] = "0, 255";
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245 var_opt_range["optimize_size"] = "0, 255";
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246
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247 # Sort by size to mimic how the structure is laid out to be friendlier to the
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248 # cache.
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249
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250 for (i = 0; i < n_opts; i++) {
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251 if (flag_set_p("Optimization", flags[i])) {
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252 name = var_name(flags[i])
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253 if(name == "")
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254 continue;
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255
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256 if(name in var_opt_seen)
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257 continue;
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258
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259 var_opt_seen[name]++;
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260 otype = var_type_struct(flags[i]);
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261 if (otype ~ "^((un)?signed +)?int *$")
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262 var_opt_int[n_opt_int++] = name;
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263
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264 else if (otype ~ "^((un)?signed +)?short *$")
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265 var_opt_short[n_opt_short++] = name;
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266
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267 else if (otype ~ "^((un)?signed +)?char *$") {
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268 var_opt_char[n_opt_char++] = name;
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269 if (otype ~ "^unsigned +char *$")
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270 var_opt_range[name] = "0, 255"
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271 else if (otype ~ "^signed +char *$")
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272 var_opt_range[name] = "-128, 127"
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273 }
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274 else
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275 var_opt_other[n_opt_other++] = name;
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276 }
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277 }
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278
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279 for (i = 0; i < n_opt_char; i++) {
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280 name = var_opt_char[i];
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281 if (var_opt_range[name] != "")
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282 print " gcc_assert (IN_RANGE (" name ", " var_opt_range[name] "));";
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283 }
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284
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285 print "";
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286 for (i = 0; i < n_opt_other; i++) {
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287 print " ptr->" var_opt_other[i] " = " var_opt_other[i] ";";
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288 }
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289
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290 for (i = 0; i < n_opt_int; i++) {
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291 print " ptr->" var_opt_int[i] " = " var_opt_int[i] ";";
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292 }
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293
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294 for (i = 0; i < n_opt_short; i++) {
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295 print " ptr->" var_opt_short[i] " = " var_opt_short[i] ";";
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296 }
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297
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298 for (i = 0; i < n_opt_char; i++) {
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299 print " ptr->" var_opt_char[i] " = " var_opt_char[i] ";";
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300 }
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301
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302 print "}";
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303
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304 print "";
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305 print "/* Restore optimization options from a structure. */";
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306 print "void";
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307 print "cl_optimization_restore (struct cl_optimization *ptr)";
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308 print "{";
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309
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310 for (i = 0; i < n_opt_other; i++) {
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311 print " " var_opt_other[i] " = ptr->" var_opt_other[i] ";";
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312 }
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313
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314 for (i = 0; i < n_opt_int; i++) {
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315 print " " var_opt_int[i] " = ptr->" var_opt_int[i] ";";
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316 }
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317
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318 for (i = 0; i < n_opt_short; i++) {
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319 print " " var_opt_short[i] " = ptr->" var_opt_short[i] ";";
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320 }
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321
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322 for (i = 0; i < n_opt_char; i++) {
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323 print " " var_opt_char[i] " = ptr->" var_opt_char[i] ";";
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324 }
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325
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326 print "}";
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327
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328 print "";
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329 print "/* Print optimization options from a structure. */";
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330 print "void";
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331 print "cl_optimization_print (FILE *file,";
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332 print " int indent_to,";
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333 print " struct cl_optimization *ptr)";
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334 print "{";
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335
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336 print " fputs (\"\\n\", file);";
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337 for (i = 0; i < n_opt_other; i++) {
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338 print " if (ptr->" var_opt_other[i] ")";
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339 print " fprintf (file, \"%*s%s (0x%lx)\\n\",";
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340 print " indent_to, \"\",";
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341 print " \"" var_opt_other[i] "\",";
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342 print " (unsigned long)ptr->" var_opt_other[i] ");";
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343 print "";
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344 }
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345
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346 for (i = 0; i < n_opt_int; i++) {
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347 print " if (ptr->" var_opt_int[i] ")";
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348 print " fprintf (file, \"%*s%s (0x%x)\\n\",";
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349 print " indent_to, \"\",";
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350 print " \"" var_opt_int[i] "\",";
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351 print " ptr->" var_opt_int[i] ");";
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352 print "";
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353 }
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354
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355 for (i = 0; i < n_opt_short; i++) {
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356 print " if (ptr->" var_opt_short[i] ")";
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357 print " fprintf (file, \"%*s%s (0x%x)\\n\",";
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358 print " indent_to, \"\",";
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359 print " \"" var_opt_short[i] "\",";
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360 print " ptr->" var_opt_short[i] ");";
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361 print "";
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362 }
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363
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364 for (i = 0; i < n_opt_char; i++) {
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365 print " if (ptr->" var_opt_char[i] ")";
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366 print " fprintf (file, \"%*s%s (0x%x)\\n\",";
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367 print " indent_to, \"\",";
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368 print " \"" var_opt_char[i] "\",";
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369 print " ptr->" var_opt_char[i] ");";
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370 print "";
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371 }
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372
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373 print "}";
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374
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375 print "";
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376 print "/* Save selected option variables into a structure. */"
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377 print "void";
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378 print "cl_target_option_save (struct cl_target_option *ptr)";
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379 print "{";
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380
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381 n_target_char = 0;
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382 n_target_short = 0;
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383 n_target_int = 0;
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384 n_target_other = 0;
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385
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386 if (have_save) {
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387 for (i = 0; i < n_opts; i++) {
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388 if (flag_set_p("Save", flags[i])) {
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389 name = var_name(flags[i])
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390 if(name == "")
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391 name = "target_flags";
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392
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393 if(name in var_save_seen)
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394 continue;
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395
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396 var_save_seen[name]++;
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397 otype = var_type_struct(flags[i])
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398 if (otype ~ "^((un)?signed +)?int *$")
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399 var_target_int[n_target_int++] = name;
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400
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401 else if (otype ~ "^((un)?signed +)?short *$")
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402 var_target_short[n_target_short++] = name;
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403
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404 else if (otype ~ "^((un)?signed +)?char *$") {
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405 var_target_char[n_target_char++] = name;
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406 if (otype ~ "^unsigned +char *$")
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407 var_target_range[name] = "0, 255"
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408 else if (otype ~ "^signed +char *$")
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409 var_target_range[name] = "-128, 127"
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410 }
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411 else
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412 var_target_other[n_target_other++] = name;
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413 }
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414 }
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415 } else {
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416 var_target_int[n_target_int++] = "target_flags";
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417 }
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418
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419 have_assert = 0;
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420 for (i = 0; i < n_target_char; i++) {
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421 name = var_target_char[i];
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422 if (var_target_range[name] != "") {
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423 have_assert = 1;
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424 print " gcc_assert (IN_RANGE (" name ", " var_target_range[name] "));";
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425 }
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426 }
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427
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428 if (have_assert)
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429 print "";
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430
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431 print " if (targetm.target_option.save)";
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432 print " targetm.target_option.save (ptr);";
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433 print "";
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434
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435 for (i = 0; i < n_target_other; i++) {
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436 print " ptr->" var_target_other[i] " = " var_target_other[i] ";";
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437 }
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438
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439 for (i = 0; i < n_target_int; i++) {
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440 print " ptr->" var_target_int[i] " = " var_target_int[i] ";";
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441 }
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442
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443 for (i = 0; i < n_target_short; i++) {
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444 print " ptr->" var_target_short[i] " = " var_target_short[i] ";";
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445 }
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446
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447 for (i = 0; i < n_target_char; i++) {
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448 print " ptr->" var_target_char[i] " = " var_target_char[i] ";";
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449 }
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450
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451 print "}";
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452
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453 print "";
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454 print "/* Restore selected current options from a structure. */";
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455 print "void";
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456 print "cl_target_option_restore (struct cl_target_option *ptr)";
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457 print "{";
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458
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459 for (i = 0; i < n_target_other; i++) {
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460 print " " var_target_other[i] " = ptr->" var_target_other[i] ";";
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461 }
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462
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463 for (i = 0; i < n_target_int; i++) {
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464 print " " var_target_int[i] " = ptr->" var_target_int[i] ";";
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465 }
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466
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467 for (i = 0; i < n_target_short; i++) {
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468 print " " var_target_short[i] " = ptr->" var_target_short[i] ";";
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469 }
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470
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471 for (i = 0; i < n_target_char; i++) {
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472 print " " var_target_char[i] " = ptr->" var_target_char[i] ";";
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473 }
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474
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475 # This must occur after the normal variables in case the code depends on those
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476 # variables.
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477 print "";
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478 print " if (targetm.target_option.restore)";
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479 print " targetm.target_option.restore (ptr);";
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480
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481 print "}";
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482
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483 print "";
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484 print "/* Print optimization options from a structure. */";
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485 print "void";
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486 print "cl_target_option_print (FILE *file,";
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487 print " int indent,";
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488 print " struct cl_target_option *ptr)";
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489 print "{";
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|
490
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491 print " fputs (\"\\n\", file);";
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492 for (i = 0; i < n_target_other; i++) {
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493 print " if (ptr->" var_target_other[i] ")";
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494 print " fprintf (file, \"%*s%s (0x%lx)\\n\",";
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495 print " indent, \"\",";
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496 print " \"" var_target_other[i] "\",";
|
|
497 print " (unsigned long)ptr->" var_target_other[i] ");";
|
|
498 print "";
|
|
499 }
|
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500
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501 for (i = 0; i < n_target_int; i++) {
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502 print " if (ptr->" var_target_int[i] ")";
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503 print " fprintf (file, \"%*s%s (0x%x)\\n\",";
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504 print " indent, \"\",";
|
|
505 print " \"" var_target_int[i] "\",";
|
|
506 print " ptr->" var_target_int[i] ");";
|
|
507 print "";
|
|
508 }
|
|
509
|
|
510 for (i = 0; i < n_target_short; i++) {
|
|
511 print " if (ptr->" var_target_short[i] ")";
|
|
512 print " fprintf (file, \"%*s%s (0x%x)\\n\",";
|
|
513 print " indent, \"\",";
|
|
514 print " \"" var_target_short[i] "\",";
|
|
515 print " ptr->" var_target_short[i] ");";
|
|
516 print "";
|
|
517 }
|
|
518
|
|
519 for (i = 0; i < n_target_char; i++) {
|
|
520 print " if (ptr->" var_target_char[i] ")";
|
|
521 print " fprintf (file, \"%*s%s (0x%x)\\n\",";
|
|
522 print " indent, \"\",";
|
|
523 print " \"" var_target_char[i] "\",";
|
|
524 print " ptr->" var_target_char[i] ");";
|
|
525 print "";
|
|
526 }
|
|
527
|
|
528 print "";
|
|
529 print " if (targetm.target_option.print)";
|
|
530 print " targetm.target_option.print (file, indent, ptr);";
|
|
531
|
|
532 print "}";
|
|
533 print "#endif";
|
|
534
|
|
535 }
|