Mercurial > projects > ldc
annotate gen/asmstmt.cpp @ 954:e048e36bc155
Added support for using a temporary to implement emulated ABI return from inline asm, could be easier to use, but I think this will do. It's so extremely target dependent in any case that doing a completely generic approach seems hard.
author | Tomas Lindquist Olsen <tomas.l.olsen@gmail.com> |
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date | Sat, 14 Feb 2009 15:25:48 +0100 |
parents | 03d7c4aac654 |
children | 7e669954db7d |
rev | line source |
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304 | 1 // Taken from GDC source tree. Original by David Friedman. |
2 // Released under the Artistic License found in dmd/artistic.txt | |
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3 |
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4 #include "gen/llvm.h" |
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5 #include "llvm/InlineAsm.h" |
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6 |
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7 //#include "d-gcc-includes.h" |
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8 //#include "total.h" |
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9 #include "mars.h" |
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10 #include "statement.h" |
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11 #include "scope.h" |
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12 #include "declaration.h" |
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13 #include "dsymbol.h" |
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14 |
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15 #include <cassert> |
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16 #include <deque> |
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17 #include <iostream> |
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18 #include <cstring> |
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19 |
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20 //#include "d-lang.h" |
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21 //#include "d-codegen.h" |
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22 |
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23 #include "gen/irstate.h" |
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24 #include "gen/dvalue.h" |
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25 #include "gen/tollvm.h" |
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26 #include "gen/logger.h" |
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27 #include "gen/todebug.h" |
302 | 28 #include "gen/llvmhelpers.h" |
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29 #include "gen/functions.h" |
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30 |
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31 typedef enum { |
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32 Arg_Integer, |
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33 Arg_Pointer, |
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34 Arg_Memory, |
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35 Arg_FrameRelative, |
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36 Arg_LocalSize, |
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37 Arg_Dollar |
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38 } AsmArgType; |
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39 |
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40 typedef enum { |
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41 Mode_Input, |
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42 Mode_Output, |
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43 Mode_Update |
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44 } AsmArgMode; |
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45 |
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46 struct AsmArg { |
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47 AsmArgType type; |
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48 Expression * expr; |
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49 AsmArgMode mode; |
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50 AsmArg(AsmArgType type, Expression * expr, AsmArgMode mode) { |
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51 this->type = type; |
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52 this->expr = expr; |
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53 this->mode = mode; |
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54 } |
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55 }; |
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56 |
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57 struct AsmCode { |
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58 char * insnTemplate; |
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59 unsigned insnTemplateLen; |
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60 Array args; // of AsmArg |
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61 std::vector<bool> regs; |
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62 unsigned dollarLabel; |
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63 int clobbersMemory; |
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64 AsmCode(int n_regs) { |
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65 insnTemplate = NULL; |
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66 insnTemplateLen = 0; |
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67 regs.resize(n_regs, false); |
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68 dollarLabel = 0; |
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69 clobbersMemory = 0; |
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70 } |
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71 }; |
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72 |
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73 AsmStatement::AsmStatement(Loc loc, Token *tokens) : |
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74 Statement(loc) |
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75 { |
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76 this->tokens = tokens; // Do I need to copy these? |
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77 asmcode = 0; |
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78 asmalign = 0; |
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79 refparam = 0; |
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80 naked = 0; |
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81 |
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82 isBranchToLabel = NULL; |
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83 } |
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84 |
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85 Statement *AsmStatement::syntaxCopy() |
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86 { |
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87 // copy tokens? copy 'code'? |
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88 AsmStatement * a_s = new AsmStatement(loc,tokens); |
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89 a_s->asmcode = asmcode; |
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90 a_s->refparam = refparam; |
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91 a_s->naked = naked; |
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92 return a_s; |
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93 } |
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94 |
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95 void AsmStatement::toCBuffer(OutBuffer *buf, HdrGenState *hgs) |
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96 { |
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97 bool sep = 0, nsep = 0; |
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98 buf->writestring("asm { "); |
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99 |
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100 for (Token * t = tokens; t; t = t->next) { |
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101 switch (t->value) { |
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102 case TOKlparen: |
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103 case TOKrparen: |
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104 case TOKlbracket: |
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105 case TOKrbracket: |
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106 case TOKcolon: |
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107 case TOKsemicolon: |
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108 case TOKcomma: |
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109 case TOKstring: |
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110 case TOKcharv: |
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111 case TOKwcharv: |
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112 case TOKdcharv: |
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113 nsep = 0; |
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114 break; |
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115 default: |
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116 nsep = 1; |
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117 } |
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118 if (sep + nsep == 2) |
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119 buf->writeByte(' '); |
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120 sep = nsep; |
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121 buf->writestring(t->toChars()); |
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122 } |
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123 buf->writestring("; }"); |
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124 buf->writenl(); |
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125 } |
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126 |
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127 int AsmStatement::comeFrom() |
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128 { |
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129 return FALSE; |
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130 } |
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131 |
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132 struct AsmParserCommon |
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133 { |
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134 virtual void run(Scope* sc, AsmStatement* asmst) = 0; |
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135 virtual std::string getRegName(int i) = 0; |
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136 }; |
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137 AsmParserCommon* asmparser = NULL; |
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138 |
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139 #include "asm-x86-32.h" |
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140 #include "asm-x86-64.h" |
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141 |
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142 bool d_have_inline_asm() { return true; } |
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143 |
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144 Statement *AsmStatement::semantic(Scope *sc) |
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145 { |
237
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146 bool err = false; |
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147 if ((global.params.cpu != ARCHx86) && (global.params.cpu != ARCHx86_64)) |
237
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148 { |
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149 error("inline asm is not supported for the \"%s\" architecture", global.params.llvmArch); |
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150 err = true; |
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151 } |
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152 if (!global.params.useInlineAsm) |
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153 { |
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154 error("inline asm is not allowed when the -noasm switch is used"); |
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155 err = true; |
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156 } |
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157 if (err) |
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158 fatal(); |
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159 |
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160 //puts(toChars()); |
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161 |
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162 sc->func->inlineAsm = 1; |
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163 sc->func->inlineStatus = ILSno; // %% not sure |
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164 // %% need to set DECL_UNINLINABLE too? |
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165 sc->func->hasReturnExp = 1; // %% DMD does this, apparently... |
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166 |
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167 // empty statement -- still do the above things because they might be expected? |
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168 if (! tokens) |
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169 return this; |
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170 |
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171 if (!asmparser) |
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172 if (global.params.cpu == ARCHx86) |
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173 asmparser = new AsmParserx8632::AsmParser; |
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174 else if (global.params.cpu == ARCHx86_64) |
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175 asmparser = new AsmParserx8664::AsmParser; |
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176 |
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177 asmparser->run(sc, this); |
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178 |
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179 return this; |
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180 } |
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181 |
336 | 182 int AsmStatement::blockExit() |
183 { | |
184 //printf("AsmStatement::blockExit(%p)\n", this); | |
185 return BEfallthru | BEreturn | BEgoto | BEhalt; | |
186 } | |
187 | |
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188 void |
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189 AsmStatement::toIR(IRState * irs) |
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190 { |
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191 Logger::println("AsmStatement::toIR(): %s", loc.toChars()); |
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192 LOG_SCOPE; |
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193 |
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194 // sanity check |
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195 assert(irs->func()->decl->inlineAsm); |
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196 |
233
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197 // get asm block |
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198 IRAsmBlock* asmblock = irs->asmBlock; |
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199 assert(asmblock); |
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200 |
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201 // debug info |
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202 if (global.params.symdebug) |
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203 DtoDwarfStopPoint(loc.linnum); |
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204 |
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205 if (! asmcode) |
233
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206 return; |
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207 |
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208 static std::string i_cns = "i"; |
231
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209 static std::string p_cns = "i"; |
222
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210 static std::string m_cns = "*m"; |
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211 static std::string mw_cns = "=*m"; |
223
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212 static std::string mrw_cns = "+*m"; |
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213 static std::string memory_name = "memory"; |
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214 |
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215 AsmCode * code = (AsmCode *) asmcode; |
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216 std::deque<LLValue*> input_values; |
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217 std::deque<std::string> input_constraints; |
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218 std::deque<LLValue*> output_values; |
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219 std::deque<std::string> output_constraints; |
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220 std::deque<std::string> clobbers; |
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221 |
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222 // FIXME |
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223 #define HOST_WIDE_INT long |
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224 HOST_WIDE_INT var_frame_offset; // "frame_offset" is a macro |
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225 bool clobbers_mem = code->clobbersMemory; |
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226 int input_idx = 0; |
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227 int n_outputs = 0; |
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228 int arg_map[10]; |
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229 |
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230 assert(code->args.dim <= 10); |
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231 |
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232 for (unsigned i = 0; i < code->args.dim; i++) { |
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233 AsmArg * arg = (AsmArg *) code->args.data[i]; |
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234 |
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235 bool is_input = true; |
229
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236 LLValue* arg_val = 0; |
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237 std::string cns; |
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238 |
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239 switch (arg->type) { |
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240 case Arg_Integer: |
229
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241 arg_val = arg->expr->toElem(irs)->getRVal(); |
219
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242 do_integer: |
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243 cns = i_cns; |
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244 break; |
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245 case Arg_Pointer: |
234
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246 assert(arg->expr->op == TOKvar); |
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247 arg_val = arg->expr->toElem(irs)->getRVal(); |
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248 cns = p_cns; |
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249 |
219
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250 break; |
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251 case Arg_Memory: |
229
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252 arg_val = arg->expr->toElem(irs)->getRVal(); |
220
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253 |
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254 switch (arg->mode) { |
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255 case Mode_Input: cns = m_cns; break; |
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256 case Mode_Output: cns = mw_cns; is_input = false; break; |
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257 case Mode_Update: cns = mrw_cns; is_input = false; break; |
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258 default: assert(0); break; |
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259 } |
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260 break; |
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261 case Arg_FrameRelative: |
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262 // FIXME |
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263 std::cout << "asm fixme Arg_FrameRelative" << std::endl; |
229
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264 assert(0); |
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265 /* if (arg->expr->op == TOKvar) |
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266 arg_val = ((VarExp *) arg->expr)->var->toSymbol()->Stree; |
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267 else |
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268 assert(0); |
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269 if ( getFrameRelativeValue(arg_val, & var_frame_offset) ) { |
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270 // arg_val = irs->integerConstant(var_frame_offset); |
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271 cns = i_cns; |
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272 } else { |
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273 this->error("%s", "argument not frame relative"); |
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274 return; |
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275 } |
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276 if (arg->mode != Mode_Input) |
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277 clobbers_mem = true; |
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278 break;*/ |
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279 case Arg_LocalSize: |
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280 // FIXME |
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281 std::cout << "asm fixme Arg_LocalSize" << std::endl; |
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282 assert(0); |
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283 /* var_frame_offset = cfun->x_frame_offset; |
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284 if (var_frame_offset < 0) |
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285 var_frame_offset = - var_frame_offset; |
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286 arg_val = irs->integerConstant( var_frame_offset );*/ |
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287 goto do_integer; |
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288 default: |
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289 assert(0); |
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290 } |
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291 |
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292 if (is_input) { |
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293 arg_map[i] = --input_idx; |
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294 //inputs.cons(tree_cons(NULL_TREE, cns, NULL_TREE), arg_val); |
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295 input_values.push_back(arg_val); |
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296 input_constraints.push_back(cns); |
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297 } else { |
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298 arg_map[i] = n_outputs++; |
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299 //outputs.cons(tree_cons(NULL_TREE, cns, NULL_TREE), arg_val); |
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300 output_values.push_back(arg_val); |
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301 output_constraints.push_back(cns); |
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302 } |
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303 } |
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304 |
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305 // Telling GCC that callee-saved registers are clobbered makes it preserve |
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306 // those registers. This changes the stack from what a naked function |
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307 // expects. |
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308 |
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309 // FIXME |
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310 // if (! irs->func->naked) { |
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311 assert(asmparser); |
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312 for (int i = 0; i < code->regs.size(); i++) { |
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313 if (code->regs[i]) { |
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314 //clobbers.cons(NULL_TREE, regInfo[i].gccName); |
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315 clobbers.push_back(asmparser->getRegName(i)); |
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316 } |
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317 } |
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318 if (clobbers_mem) |
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319 clobbers.push_back(memory_name); |
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320 //clobbers.cons(NULL_TREE, memory_name); |
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321 // } |
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322 |
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323 |
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324 // Remap argument numbers |
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325 for (unsigned i = 0; i < code->args.dim; i++) { |
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326 if (arg_map[i] < 0) |
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327 arg_map[i] = -arg_map[i] - 1 + n_outputs; |
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328 } |
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329 |
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330 bool pct = false; |
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331 char * p = code->insnTemplate; |
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332 char * q = p + code->insnTemplateLen; |
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333 //printf("start: %.*s\n", code->insnTemplateLen, code->insnTemplate); |
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334 while (p < q) { |
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335 if (pct) { |
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336 if (*p >= '0' && *p <= '9') { |
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337 // %% doesn't check against nargs |
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338 *p = '0' + arg_map[*p - '0']; |
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339 pct = false; |
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340 } else if (*p == '$') { |
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341 pct = false; |
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342 } |
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343 //assert(*p == '%');// could be 'a', etc. so forget it.. |
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344 } else if (*p == '$') |
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345 pct = true; |
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346 ++p; |
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347 } |
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348 |
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349 Logger::println("final asm: %.*s", code->insnTemplateLen, code->insnTemplate); |
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350 |
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351 std::string insnt(code->insnTemplate, code->insnTemplateLen); |
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352 |
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353 // rewrite GCC-style constraints to LLVM-style constraints |
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354 std::string llvmOutConstraints; |
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355 std::string llvmInConstraints; |
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356 int n = 0; |
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357 typedef std::deque<std::string>::iterator it; |
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358 for(it i = output_constraints.begin(), e = output_constraints.end(); i != e; ++i, ++n) { |
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359 // rewrite update constraint to in and out constraints |
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360 if((*i)[0] == '+') { |
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361 (*i)[0] = '='; |
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362 std::string input_constraint; |
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363 std::stringstream ss; |
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364 ss << n; |
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365 ss >> input_constraint; |
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366 //FIXME: I think multiple inout constraints will mess up the order! |
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367 input_constraints.push_front(input_constraint); |
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368 input_values.push_front(output_values[n]); |
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369 } |
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370 llvmOutConstraints += *i; |
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371 llvmOutConstraints += ","; |
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372 } |
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373 for(it i = input_constraints.begin(), e = input_constraints.end(); i != e; ++i) { |
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374 llvmInConstraints += *i; |
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375 llvmInConstraints += ","; |
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376 } |
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377 |
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378 std::string clobstr; |
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379 for(it i = clobbers.begin(), e = clobbers.end(); i != e; ++i) { |
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380 clobstr = "~{" + *i + "},"; |
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381 asmblock->clobs.insert(clobstr); |
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382 } |
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383 |
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384 // excessive commas are removed later... |
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385 |
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386 // push asm statement |
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387 IRAsmStmt* asmStmt = new IRAsmStmt; |
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388 asmStmt->code = insnt; |
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389 asmStmt->out_c = llvmOutConstraints; |
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390 asmStmt->in_c = llvmInConstraints; |
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391 asmStmt->out.insert(asmStmt->out.begin(), output_values.begin(), output_values.end()); |
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392 asmStmt->in.insert(asmStmt->in.begin(), input_values.begin(), input_values.end()); |
299
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393 asmStmt->isBranchToLabel = isBranchToLabel; |
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394 asmblock->s.push_back(asmStmt); |
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395 } |
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396 |
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397 ////////////////////////////////////////////////////////////////////////////// |
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398 |
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399 AsmBlockStatement::AsmBlockStatement(Loc loc, Statements* s) |
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400 : CompoundStatement(loc, s) |
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401 { |
309 | 402 enclosinghandler = NULL; |
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403 tf = NULL; |
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404 |
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405 abiret = NULL; |
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406 } |
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407 |
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408 // rewrite argument indices to the block scope indices |
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409 static void remap_outargs(std::string& insnt, size_t nargs, size_t& idx) |
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410 { |
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411 static const std::string digits[10] = |
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412 { |
232
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413 "0","1","2","3","4", |
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414 "5","6","7","8","9" |
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415 }; |
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416 assert(nargs <= 10); |
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417 |
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418 static const std::string prefix("<<out"); |
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419 static const std::string suffix(">>"); |
232
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420 std::string argnum; |
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421 std::string needle; |
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422 char buf[10]; |
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423 for (unsigned i = 0; i < nargs; i++) { |
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424 needle = prefix + digits[i] + suffix; |
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425 size_t pos = insnt.find(needle); |
303 | 426 if(std::string::npos != pos) |
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427 sprintf(buf, "%" PRIuSIZE, idx++); |
302 | 428 while(std::string::npos != (pos = insnt.find(needle))) |
300
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429 insnt.replace(pos, needle.size(), buf); |
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430 } |
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431 } |
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432 |
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433 // rewrite argument indices to the block scope indices |
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434 static void remap_inargs(std::string& insnt, size_t nargs, size_t& idx) |
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435 { |
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436 static const std::string digits[10] = |
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437 { |
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438 "0","1","2","3","4", |
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439 "5","6","7","8","9" |
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440 }; |
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441 assert(nargs <= 10); |
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442 |
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443 static const std::string prefix("<<in"); |
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444 static const std::string suffix(">>"); |
232
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445 std::string argnum; |
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446 std::string needle; |
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447 char buf[10]; |
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448 for (unsigned i = 0; i < nargs; i++) { |
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449 needle = prefix + digits[i] + suffix; |
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450 size_t pos = insnt.find(needle); |
303 | 451 if(std::string::npos != pos) |
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452 sprintf(buf, "%" PRIuSIZE, idx++); |
302 | 453 while(std::string::npos != (pos = insnt.find(needle))) |
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454 insnt.replace(pos, needle.size(), buf); |
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455 } |
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456 } |
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457 |
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458 LLValue* DtoAggrPairSwap(LLValue* aggr); |
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459 |
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460 void AsmBlockStatement::toIR(IRState* p) |
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461 { |
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462 Logger::println("AsmBlockStatement::toIR(): %s", loc.toChars()); |
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463 LOG_SCOPE; |
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464 Logger::println("BEGIN ASM"); |
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465 |
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466 // disable inlining by default |
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467 if (!p->func()->decl->allowInlining) |
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468 p->func()->setNeverInline(); |
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469 |
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470 // create asm block structure |
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471 assert(!p->asmBlock); |
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472 IRAsmBlock* asmblock = new IRAsmBlock(this); |
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473 assert(asmblock); |
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474 p->asmBlock = asmblock; |
232
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475 |
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476 // do asm statements |
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477 for (int i=0; i<statements->dim; i++) |
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478 { |
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479 Statement* s = (Statement*)statements->data[i]; |
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480 if (s) { |
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481 s->toIR(p); |
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482 } |
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483 } |
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484 |
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485 // build forwarder for in-asm branches to external labels |
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486 // this additional asm code sets the __llvm_jump_target variable |
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487 // to a unique value that will identify the jump target in |
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488 // a post-asm switch |
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489 |
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490 // maps each goto destination to its special value |
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491 std::map<Identifier*, int> gotoToVal; |
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492 |
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493 // location of the special value determining the goto label |
302 | 494 // will be set if post-asm dispatcher block is needed |
495 llvm::AllocaInst* jump_target; | |
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496 |
302 | 497 { |
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498 FuncDeclaration* fd = gIR->func()->decl; |
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499 char* fdmangle = fd->mangle(); |
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500 |
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501 // we use a simple static counter to make sure the new end labels are unique |
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502 static size_t uniqueLabelsId = 0; |
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503 std::ostringstream asmGotoEndLabel; |
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504 asmGotoEndLabel << "." << fdmangle << "__llvm_asm_end" << uniqueLabelsId++; |
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505 |
302 | 506 // initialize the setter statement we're going to build |
507 IRAsmStmt* outSetterStmt = new IRAsmStmt; | |
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508 std::string asmGotoEnd = "jmp "+asmGotoEndLabel.str()+" ; "; |
302 | 509 std::ostringstream code; |
510 code << asmGotoEnd; | |
511 | |
512 int n_goto = 1; | |
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513 |
302 | 514 size_t n = asmblock->s.size(); |
515 for(size_t i=0; i<n; ++i) | |
516 { | |
517 IRAsmStmt* a = asmblock->s[i]; | |
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518 |
302 | 519 // skip non-branch statements |
520 if(!a->isBranchToLabel) | |
521 continue; | |
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522 |
302 | 523 // if internal, no special handling is necessary, skip |
524 std::vector<Identifier*>::const_iterator it, end; | |
525 end = asmblock->internalLabels.end(); | |
526 bool skip = false; | |
527 for(it = asmblock->internalLabels.begin(); it != end; ++it) | |
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528 if((*it)->equals(a->isBranchToLabel)) |
302 | 529 skip = true; |
530 if(skip) | |
531 continue; | |
532 | |
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533 // if we already set things up for this branch target, skip |
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534 if(gotoToVal.find(a->isBranchToLabel) != gotoToVal.end()) |
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535 continue; |
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536 |
302 | 537 // record that the jump needs to be handled in the post-asm dispatcher |
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538 gotoToVal[a->isBranchToLabel] = n_goto; |
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539 |
302 | 540 // provide an in-asm target for the branch and set value |
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541 Logger::println("statement '%s' references outer label '%s': creating forwarder", a->code.c_str(), a->isBranchToLabel->string); |
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542 code << fdmangle << '_' << a->isBranchToLabel->string << ": ; "; |
302 | 543 code << "movl $<<in" << n_goto << ">>, $<<out0>> ; "; |
544 //FIXME: Store the value -> label mapping somewhere, so it can be referenced later | |
305
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545 outSetterStmt->in.push_back(DtoConstUint(n_goto)); |
302 | 546 outSetterStmt->in_c += "i,"; |
547 code << asmGotoEnd; | |
548 | |
549 ++n_goto; | |
550 } | |
551 if(code.str() != asmGotoEnd) | |
552 { | |
553 // finalize code | |
554 outSetterStmt->code = code.str(); | |
305
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555 outSetterStmt->code += asmGotoEndLabel.str()+": ; "; |
302 | 556 |
557 // create storage for and initialize the temporary | |
479
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558 jump_target = DtoAlloca(LLType::Int32Ty, "__llvm_jump_target"); |
305
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559 gIR->ir->CreateStore(DtoConstUint(0), jump_target); |
302 | 560 // setup variable for output from asm |
561 outSetterStmt->out_c = "=*m,"; | |
562 outSetterStmt->out.push_back(jump_target); | |
563 | |
564 asmblock->s.push_back(outSetterStmt); | |
565 } | |
566 else | |
567 delete outSetterStmt; | |
299
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568 } |
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569 |
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570 |
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571 // build a fall-off-end-properly asm statement |
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572 |
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573 FuncDeclaration* thisfunc = p->func()->decl; |
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574 bool useabiret = false; |
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575 p->asmBlock->asmBlock->abiret = NULL; |
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576 if (thisfunc->fbody->endsWithAsm() == this && thisfunc->type->nextOf()->ty != Tvoid) |
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577 { |
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578 // there can't be goto forwarders in this case |
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579 assert(gotoToVal.empty()); |
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580 emitABIReturnAsmStmt(asmblock, loc, thisfunc); |
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581 useabiret = true; |
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582 } |
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583 |
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584 |
232
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585 // build asm block |
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586 std::vector<LLValue*> outargs; |
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587 std::vector<LLValue*> inargs; |
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588 std::vector<const LLType*> outtypes; |
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589 std::vector<const LLType*> intypes; |
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590 std::string out_c; |
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591 std::string in_c; |
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592 std::string clobbers; |
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593 std::string code; |
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594 size_t asmIdx = asmblock->retn; |
232
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595 |
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596 Logger::println("do outputs"); |
302 | 597 size_t n = asmblock->s.size(); |
232
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598 for (size_t i=0; i<n; ++i) |
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599 { |
233
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600 IRAsmStmt* a = asmblock->s[i]; |
232
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601 assert(a); |
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602 size_t onn = a->out.size(); |
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603 for (size_t j=0; j<onn; ++j) |
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604 { |
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605 outargs.push_back(a->out[j]); |
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606 outtypes.push_back(a->out[j]->getType()); |
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607 } |
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608 if (!a->out_c.empty()) |
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609 { |
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610 out_c += a->out_c; |
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611 } |
300
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612 remap_outargs(a->code, onn+a->in.size(), asmIdx); |
232
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613 } |
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614 |
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615 Logger::println("do inputs"); |
232
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616 for (size_t i=0; i<n; ++i) |
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617 { |
233
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618 IRAsmStmt* a = asmblock->s[i]; |
232
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619 assert(a); |
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620 size_t inn = a->in.size(); |
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621 for (size_t j=0; j<inn; ++j) |
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622 { |
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623 inargs.push_back(a->in[j]); |
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624 intypes.push_back(a->in[j]->getType()); |
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625 } |
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626 if (!a->in_c.empty()) |
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627 { |
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628 in_c += a->in_c; |
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629 } |
300
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630 remap_inargs(a->code, inn+a->out.size(), asmIdx); |
232
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631 if (!code.empty()) |
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632 code += "\n\t"; |
232
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633 code += a->code; |
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634 } |
233
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635 asmblock->s.clear(); |
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636 |
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637 // append inputs |
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638 out_c += in_c; |
232
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639 |
233
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640 // append clobbers |
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641 typedef std::set<std::string>::iterator clobs_it; |
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642 for (clobs_it i=asmblock->clobs.begin(); i!=asmblock->clobs.end(); ++i) |
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643 { |
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644 out_c += *i; |
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645 } |
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646 |
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647 // remove excessive comma |
232
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648 if (!out_c.empty()) |
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649 out_c.resize(out_c.size()-1); |
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650 |
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651 Logger::println("code = \"%s\"", code.c_str()); |
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652 Logger::println("constraints = \"%s\"", out_c.c_str()); |
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653 |
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654 // build return types |
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655 const LLType* retty; |
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656 if (asmblock->retn) |
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657 retty = asmblock->retty; |
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658 else |
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659 retty = llvm::Type::VoidTy; |
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660 |
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661 // build argument types |
232
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662 std::vector<const LLType*> types; |
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663 types.insert(types.end(), outtypes.begin(), outtypes.end()); |
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664 types.insert(types.end(), intypes.begin(), intypes.end()); |
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665 llvm::FunctionType* fty = llvm::FunctionType::get(retty, types, false); |
622
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666 if (Logger::enabled()) |
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667 Logger::cout() << "function type = " << *fty << '\n'; |
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668 llvm::InlineAsm* ia = llvm::InlineAsm::get(fty, code, out_c, true); |
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669 |
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670 std::vector<LLValue*> args; |
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671 args.insert(args.end(), outargs.begin(), outargs.end()); |
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672 args.insert(args.end(), inargs.begin(), inargs.end()); |
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673 llvm::CallInst* call = p->ir->CreateCall(ia, args.begin(), args.end(), ""); |
954
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Added support for using a temporary to implement emulated ABI return from inline asm, could be easier to use, but I think this will do. It's so extremely target dependent in any case that doing a completely generic approach seems hard.
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674 |
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675 // capture abi return value |
945
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676 if (useabiret) |
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677 { |
954
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Added support for using a temporary to implement emulated ABI return from inline asm, could be easier to use, but I think this will do. It's so extremely target dependent in any case that doing a completely generic approach seems hard.
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678 if (p->asmBlock->retemu) |
e048e36bc155
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679 p->asmBlock->asmBlock->abiret = DtoLoad(p->asmBlock->asmBlock->abiret); |
e048e36bc155
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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680 else |
945
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681 p->asmBlock->asmBlock->abiret = call; |
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682 } |
232
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683 |
233
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684 p->asmBlock = NULL; |
232
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685 Logger::println("END ASM"); |
299
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686 |
302 | 687 // if asm contained external branches, emit goto forwarder code |
312
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688 if(!gotoToVal.empty()) |
302 | 689 { |
690 assert(jump_target); | |
691 | |
692 // make new blocks | |
693 llvm::BasicBlock* oldend = gIR->scopeend(); | |
694 llvm::BasicBlock* bb = llvm::BasicBlock::Create("afterasmgotoforwarder", p->topfunc(), oldend); | |
695 | |
696 llvm::LoadInst* val = p->ir->CreateLoad(jump_target, "__llvm_jump_target_value"); | |
312
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697 llvm::SwitchInst* sw = p->ir->CreateSwitch(val, bb, gotoToVal.size()); |
302 | 698 |
699 // add all cases | |
312
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700 std::map<Identifier*, int>::iterator it, end = gotoToVal.end(); |
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701 for(it = gotoToVal.begin(); it != end; ++it) |
302 | 702 { |
703 llvm::BasicBlock* casebb = llvm::BasicBlock::Create("case", p->topfunc(), bb); | |
312
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704 sw->addCase(llvm::ConstantInt::get(llvm::IntegerType::get(32), it->second), casebb); |
302 | 705 |
706 p->scope() = IRScope(casebb,bb); | |
356
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707 DtoGoto(&loc, it->first, enclosinghandler, tf); |
302 | 708 } |
709 | |
710 p->scope() = IRScope(bb,oldend); | |
711 } | |
219
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[svn r235] rough port of GDC's inline assembler code, unfinished
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712 } |
232
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713 |
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714 // the whole idea of this statement is to avoid the flattening |
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715 Statements* AsmBlockStatement::flatten(Scope* sc) |
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716 { |
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717 return NULL; |
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718 } |
239
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719 |
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720 Statement *AsmBlockStatement::syntaxCopy() |
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721 { |
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722 Statements *a = new Statements(); |
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723 a->setDim(statements->dim); |
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724 for (size_t i = 0; i < statements->dim; i++) |
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725 { |
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726 Statement *s = (Statement *)statements->data[i]; |
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727 if (s) |
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728 s = s->syntaxCopy(); |
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729 a->data[i] = s; |
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730 } |
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731 AsmBlockStatement *cs = new AsmBlockStatement(loc, a); |
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732 return cs; |
299
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|
733 } |
302 | 734 |
735 // necessary for in-asm branches | |
736 Statement *AsmBlockStatement::semantic(Scope *sc) | |
737 { | |
309 | 738 enclosinghandler = sc->tfOfTry; |
356
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739 tf = sc->tf; |
302 | 740 |
741 return CompoundStatement::semantic(sc); | |
742 } | |
920
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Implemented proper support for naked asm using llvm module level asm. Still not 100% complete, but already 1000 times better that what we had before. Don's BignumX86 implementation from Tango (when turned into a standalone unittest) seems to fully work with no changes, and great performance :)
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743 |
545f54041d91
Implemented proper support for naked asm using llvm module level asm. Still not 100% complete, but already 1000 times better that what we had before. Don's BignumX86 implementation from Tango (when turned into a standalone unittest) seems to fully work with no changes, and great performance :)
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744 ////////////////////////////////////////////////////////////////////////////// |
545f54041d91
Implemented proper support for naked asm using llvm module level asm. Still not 100% complete, but already 1000 times better that what we had before. Don's BignumX86 implementation from Tango (when turned into a standalone unittest) seems to fully work with no changes, and great performance :)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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|
745 |
545f54041d91
Implemented proper support for naked asm using llvm module level asm. Still not 100% complete, but already 1000 times better that what we had before. Don's BignumX86 implementation from Tango (when turned into a standalone unittest) seems to fully work with no changes, and great performance :)
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parents:
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|
746 void AsmStatement::toNakedIR(IRState *p) |
545f54041d91
Implemented proper support for naked asm using llvm module level asm. Still not 100% complete, but already 1000 times better that what we had before. Don's BignumX86 implementation from Tango (when turned into a standalone unittest) seems to fully work with no changes, and great performance :)
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parents:
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747 { |
545f54041d91
Implemented proper support for naked asm using llvm module level asm. Still not 100% complete, but already 1000 times better that what we had before. Don's BignumX86 implementation from Tango (when turned into a standalone unittest) seems to fully work with no changes, and great performance :)
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|
748 Logger::println("AsmStatement::toNakedIR(): %s", loc.toChars()); |
545f54041d91
Implemented proper support for naked asm using llvm module level asm. Still not 100% complete, but already 1000 times better that what we had before. Don's BignumX86 implementation from Tango (when turned into a standalone unittest) seems to fully work with no changes, and great performance :)
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parents:
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|
749 LOG_SCOPE; |
545f54041d91
Implemented proper support for naked asm using llvm module level asm. Still not 100% complete, but already 1000 times better that what we had before. Don's BignumX86 implementation from Tango (when turned into a standalone unittest) seems to fully work with no changes, and great performance :)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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diff
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|
750 |
545f54041d91
Implemented proper support for naked asm using llvm module level asm. Still not 100% complete, but already 1000 times better that what we had before. Don's BignumX86 implementation from Tango (when turned into a standalone unittest) seems to fully work with no changes, and great performance :)
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parents:
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diff
changeset
|
751 // is there code? |
545f54041d91
Implemented proper support for naked asm using llvm module level asm. Still not 100% complete, but already 1000 times better that what we had before. Don's BignumX86 implementation from Tango (when turned into a standalone unittest) seems to fully work with no changes, and great performance :)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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diff
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|
752 if (!asmcode) |
545f54041d91
Implemented proper support for naked asm using llvm module level asm. Still not 100% complete, but already 1000 times better that what we had before. Don's BignumX86 implementation from Tango (when turned into a standalone unittest) seems to fully work with no changes, and great performance :)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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|
753 return; |
545f54041d91
Implemented proper support for naked asm using llvm module level asm. Still not 100% complete, but already 1000 times better that what we had before. Don's BignumX86 implementation from Tango (when turned into a standalone unittest) seems to fully work with no changes, and great performance :)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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|
754 AsmCode * code = (AsmCode *) asmcode; |
545f54041d91
Implemented proper support for naked asm using llvm module level asm. Still not 100% complete, but already 1000 times better that what we had before. Don's BignumX86 implementation from Tango (when turned into a standalone unittest) seems to fully work with no changes, and great performance :)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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diff
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|
755 |
545f54041d91
Implemented proper support for naked asm using llvm module level asm. Still not 100% complete, but already 1000 times better that what we had before. Don's BignumX86 implementation from Tango (when turned into a standalone unittest) seems to fully work with no changes, and great performance :)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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diff
changeset
|
756 // build asm stmt |
545f54041d91
Implemented proper support for naked asm using llvm module level asm. Still not 100% complete, but already 1000 times better that what we had before. Don's BignumX86 implementation from Tango (when turned into a standalone unittest) seems to fully work with no changes, and great performance :)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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diff
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|
757 std::ostringstream& asmstr = p->nakedAsm; |
545f54041d91
Implemented proper support for naked asm using llvm module level asm. Still not 100% complete, but already 1000 times better that what we had before. Don's BignumX86 implementation from Tango (when turned into a standalone unittest) seems to fully work with no changes, and great performance :)
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parents:
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diff
changeset
|
758 asmstr << "\t"; |
545f54041d91
Implemented proper support for naked asm using llvm module level asm. Still not 100% complete, but already 1000 times better that what we had before. Don's BignumX86 implementation from Tango (when turned into a standalone unittest) seems to fully work with no changes, and great performance :)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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diff
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|
759 asmstr.write(code->insnTemplate, code->insnTemplateLen); |
545f54041d91
Implemented proper support for naked asm using llvm module level asm. Still not 100% complete, but already 1000 times better that what we had before. Don's BignumX86 implementation from Tango (when turned into a standalone unittest) seems to fully work with no changes, and great performance :)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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|
760 asmstr << std::endl; |
545f54041d91
Implemented proper support for naked asm using llvm module level asm. Still not 100% complete, but already 1000 times better that what we had before. Don's BignumX86 implementation from Tango (when turned into a standalone unittest) seems to fully work with no changes, and great performance :)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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|
761 } |
545f54041d91
Implemented proper support for naked asm using llvm module level asm. Still not 100% complete, but already 1000 times better that what we had before. Don's BignumX86 implementation from Tango (when turned into a standalone unittest) seems to fully work with no changes, and great performance :)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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|
762 |
545f54041d91
Implemented proper support for naked asm using llvm module level asm. Still not 100% complete, but already 1000 times better that what we had before. Don's BignumX86 implementation from Tango (when turned into a standalone unittest) seems to fully work with no changes, and great performance :)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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763 void AsmBlockStatement::toNakedIR(IRState *p) |
545f54041d91
Implemented proper support for naked asm using llvm module level asm. Still not 100% complete, but already 1000 times better that what we had before. Don's BignumX86 implementation from Tango (when turned into a standalone unittest) seems to fully work with no changes, and great performance :)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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|
764 { |
545f54041d91
Implemented proper support for naked asm using llvm module level asm. Still not 100% complete, but already 1000 times better that what we had before. Don's BignumX86 implementation from Tango (when turned into a standalone unittest) seems to fully work with no changes, and great performance :)
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parents:
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diff
changeset
|
765 Logger::println("AsmBlockStatement::toNakedIR(): %s", loc.toChars()); |
545f54041d91
Implemented proper support for naked asm using llvm module level asm. Still not 100% complete, but already 1000 times better that what we had before. Don's BignumX86 implementation from Tango (when turned into a standalone unittest) seems to fully work with no changes, and great performance :)
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parents:
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|
766 LOG_SCOPE; |
545f54041d91
Implemented proper support for naked asm using llvm module level asm. Still not 100% complete, but already 1000 times better that what we had before. Don's BignumX86 implementation from Tango (when turned into a standalone unittest) seems to fully work with no changes, and great performance :)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
794
diff
changeset
|
767 |
545f54041d91
Implemented proper support for naked asm using llvm module level asm. Still not 100% complete, but already 1000 times better that what we had before. Don's BignumX86 implementation from Tango (when turned into a standalone unittest) seems to fully work with no changes, and great performance :)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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diff
changeset
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768 // do asm statements |
545f54041d91
Implemented proper support for naked asm using llvm module level asm. Still not 100% complete, but already 1000 times better that what we had before. Don's BignumX86 implementation from Tango (when turned into a standalone unittest) seems to fully work with no changes, and great performance :)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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|
769 for (unsigned i=0; i<statements->dim; i++) |
545f54041d91
Implemented proper support for naked asm using llvm module level asm. Still not 100% complete, but already 1000 times better that what we had before. Don's BignumX86 implementation from Tango (when turned into a standalone unittest) seems to fully work with no changes, and great performance :)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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|
770 { |
545f54041d91
Implemented proper support for naked asm using llvm module level asm. Still not 100% complete, but already 1000 times better that what we had before. Don's BignumX86 implementation from Tango (when turned into a standalone unittest) seems to fully work with no changes, and great performance :)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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|
771 Statement* s = (Statement*)statements->data[i]; |
545f54041d91
Implemented proper support for naked asm using llvm module level asm. Still not 100% complete, but already 1000 times better that what we had before. Don's BignumX86 implementation from Tango (when turned into a standalone unittest) seems to fully work with no changes, and great performance :)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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changeset
|
772 if (s) s->toNakedIR(p); |
545f54041d91
Implemented proper support for naked asm using llvm module level asm. Still not 100% complete, but already 1000 times better that what we had before. Don's BignumX86 implementation from Tango (when turned into a standalone unittest) seems to fully work with no changes, and great performance :)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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diff
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|
773 } |
545f54041d91
Implemented proper support for naked asm using llvm module level asm. Still not 100% complete, but already 1000 times better that what we had before. Don's BignumX86 implementation from Tango (when turned into a standalone unittest) seems to fully work with no changes, and great performance :)
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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diff
changeset
|
774 } |