annotate gen/asmstmt.cpp @ 758:f04dde6e882c

Added initial D2 support, D2 frontend and changes to codegen to make things compile.
author Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
date Tue, 11 Nov 2008 01:38:48 +0100
parents a58784e0f035
children 661384d6a936
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1 // Taken from GDC source tree. Original by David Friedman.
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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 "statement.h"
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10 #include "scope.h"
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11 #include "declaration.h"
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12 #include "dsymbol.h"
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13
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14 #include <cassert>
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15 #include <deque>
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16 #include <iostream>
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17 #include <sstream>
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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"
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28 #include "gen/llvmhelpers.h"
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29
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30 typedef enum {
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31 Arg_Integer,
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32 Arg_Pointer,
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33 Arg_Memory,
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34 Arg_FrameRelative,
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35 Arg_LocalSize,
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36 Arg_Dollar
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37 } AsmArgType;
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38
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39 typedef enum {
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40 Mode_Input,
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41 Mode_Output,
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42 Mode_Update
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43 } AsmArgMode;
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44
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45 struct AsmArg {
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46 AsmArgType type;
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47 Expression * expr;
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48 AsmArgMode mode;
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49 AsmArg(AsmArgType type, Expression * expr, AsmArgMode mode) {
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50 this->type = type;
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51 this->expr = expr;
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52 this->mode = mode;
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53 }
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54 };
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55
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56 struct AsmCode {
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57 char * insnTemplate;
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58 unsigned insnTemplateLen;
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59 Array args; // of AsmArg
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60 std::vector<bool> regs;
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61 unsigned dollarLabel;
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62 int clobbersMemory;
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63 AsmCode(int n_regs) {
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64 insnTemplate = NULL;
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65 insnTemplateLen = 0;
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66 regs.resize(n_regs, false);
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67 dollarLabel = 0;
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68 clobbersMemory = 0;
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69 }
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70 };
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71
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72 AsmStatement::AsmStatement(Loc loc, Token *tokens) :
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73 Statement(loc)
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74 {
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75 this->tokens = tokens; // Do I need to copy these?
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76 asmcode = 0;
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77 asmalign = 0;
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78 refparam = 0;
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79 naked = 0;
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80
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81 isBranchToLabel = NULL;
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82 }
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83
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84 Statement *AsmStatement::syntaxCopy()
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85 {
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86 // copy tokens? copy 'code'?
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87 AsmStatement * a_s = new AsmStatement(loc,tokens);
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88 a_s->asmcode = asmcode;
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89 a_s->refparam = refparam;
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90 a_s->naked = naked;
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91 return a_s;
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92 }
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93
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94 void AsmStatement::toCBuffer(OutBuffer *buf, HdrGenState *hgs)
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95 {
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96 bool sep = 0, nsep = 0;
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97 buf->writestring("asm { ");
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98
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99 for (Token * t = tokens; t; t = t->next) {
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100 switch (t->value) {
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101 case TOKlparen:
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102 case TOKrparen:
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103 case TOKlbracket:
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104 case TOKrbracket:
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105 case TOKcolon:
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106 case TOKsemicolon:
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107 case TOKcomma:
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108 case TOKstring:
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109 case TOKcharv:
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110 case TOKwcharv:
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111 case TOKdcharv:
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112 nsep = 0;
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113 break;
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114 default:
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115 nsep = 1;
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116 }
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117 if (sep + nsep == 2)
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118 buf->writeByte(' ');
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119 sep = nsep;
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120 buf->writestring(t->toChars());
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121 }
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122 buf->writestring("; }");
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123 buf->writenl();
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124 }
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125
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126 int AsmStatement::comeFrom()
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127 {
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128 return FALSE;
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129 }
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130
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131 struct AsmParserCommon
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132 {
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133 virtual void run(Scope* sc, AsmStatement* asmst) = 0;
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134 virtual std::string getRegName(int i) = 0;
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135 };
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136 AsmParserCommon* asmparser = NULL;
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137
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138 #include "asm-x86-32.h"
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139 #include "asm-x86-64.h"
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140
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141 bool d_have_inline_asm() { return true; }
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142
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143 Statement *AsmStatement::semantic(Scope *sc)
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144 {
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145 bool err = false;
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146 if ((global.params.cpu != ARCHx86) && (global.params.cpu != ARCHx86_64))
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147 {
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148 error("inline asm is not supported for the \"%s\" architecture", global.params.llvmArch);
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149 err = true;
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150 }
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151 if (!global.params.useInlineAsm)
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152 {
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153 error("inline asm is not allowed when the -noasm switch is used");
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diff changeset
154 err = true;
a168a2c3ea48 [svn r253] Removed -inlineasm option. inline asm is now enabled by default unless the new -noasm option is passed.
lindquist
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155 }
a168a2c3ea48 [svn r253] Removed -inlineasm option. inline asm is now enabled by default unless the new -noasm option is passed.
lindquist
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diff changeset
156 if (err)
a168a2c3ea48 [svn r253] Removed -inlineasm option. inline asm is now enabled by default unless the new -noasm option is passed.
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diff changeset
157 fatal();
a168a2c3ea48 [svn r253] Removed -inlineasm option. inline asm is now enabled by default unless the new -noasm option is passed.
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diff changeset
158
219
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159 sc->func->inlineAsm = 1;
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160 sc->func->inlineStatus = ILSno; // %% not sure
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161 // %% need to set DECL_UNINLINABLE too?
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162 sc->func->hasReturnExp = 1; // %% DMD does this, apparently...
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163
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164 // empty statement -- still do the above things because they might be expected?
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165 if (! tokens)
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166 return this;
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167
756
a58784e0f035 Merge wilsonk's x86-64 inline assembly.
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168 if (!asmparser)
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169 if (global.params.cpu == ARCHx86)
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170 asmparser = new AsmParserx8632::AsmParser;
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171 else if (global.params.cpu == ARCHx86_64)
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172 asmparser = new AsmParserx8664::AsmParser;
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173
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174 asmparser->run(sc, this);
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175
219
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176 return this;
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177 }
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178
336
aaade6ded589 [svn r357] Merged DMD 1.033
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179 int AsmStatement::blockExit()
aaade6ded589 [svn r357] Merged DMD 1.033
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180 {
aaade6ded589 [svn r357] Merged DMD 1.033
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181 //printf("AsmStatement::blockExit(%p)\n", this);
aaade6ded589 [svn r357] Merged DMD 1.033
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182 return BEfallthru | BEreturn | BEgoto | BEhalt;
aaade6ded589 [svn r357] Merged DMD 1.033
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183 }
aaade6ded589 [svn r357] Merged DMD 1.033
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184
219
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185 void
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186 AsmStatement::toIR(IRState * irs)
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187 {
220
ccc2e6898a78 [svn r236] added initial codegen of inline asm, pretty buggy and incomplete still. see the tangotests/asm1.d test for a sample of what does
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188 Logger::println("AsmStatement::toIR(): %s", loc.toChars());
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189 LOG_SCOPE;
ccc2e6898a78 [svn r236] added initial codegen of inline asm, pretty buggy and incomplete still. see the tangotests/asm1.d test for a sample of what does
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190
533
2fe2d4518618 Reverted some changes in the Tango patch, splitting asm block is simply not supported by llvm.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 479
diff changeset
191 // sanity check
2fe2d4518618 Reverted some changes in the Tango patch, splitting asm block is simply not supported by llvm.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 479
diff changeset
192 assert(irs->func()->decl->inlineAsm);
2fe2d4518618 Reverted some changes in the Tango patch, splitting asm block is simply not supported by llvm.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 479
diff changeset
193
233
76ee1bbe487e [svn r249] Changed inline asm clobbers to a set instead of a list so we don't get duplicate clobbers.
lindquist
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194 // get asm block
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195 IRAsmBlock* asmblock = irs->asmBlock;
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diff changeset
196 assert(asmblock);
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diff changeset
197
76ee1bbe487e [svn r249] Changed inline asm clobbers to a set instead of a list so we don't get duplicate clobbers.
lindquist
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198 // debug info
76ee1bbe487e [svn r249] Changed inline asm clobbers to a set instead of a list so we don't get duplicate clobbers.
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199 if (global.params.symdebug)
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200 DtoDwarfStopPoint(loc.linnum);
219
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201
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202 if (! asmcode)
233
76ee1bbe487e [svn r249] Changed inline asm clobbers to a set instead of a list so we don't get duplicate clobbers.
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diff changeset
203 return;
219
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204
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205 static std::string i_cns = "i";
231
61aa721a6b7f [svn r247] fixed accessing global symbols from inline asm.
lindquist
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diff changeset
206 static std::string p_cns = "i";
222
251548c1035d [svn r238] use *m for memory input constraints and pass in their address
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diff changeset
207 static std::string m_cns = "*m";
221
68687d8c3e9a [svn r237] some inline asm output now seems to work, see tangotests/asm2.d
lindquist
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208 static std::string mw_cns = "=*m";
223
5ffca623b5df [svn r239] also use indirect modifier for update constraints
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diff changeset
209 static std::string mrw_cns = "+*m";
219
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210 static std::string memory_name = "memory";
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211
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212 AsmCode * code = (AsmCode *) asmcode;
229
cac3d27ae481 [svn r245] initial support for labels in inline asm, broken :/
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213 std::deque<LLValue*> input_values;
219
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214 std::deque<std::string> input_constraints;
229
cac3d27ae481 [svn r245] initial support for labels in inline asm, broken :/
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diff changeset
215 std::deque<LLValue*> output_values;
219
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216 std::deque<std::string> output_constraints;
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217 std::deque<std::string> clobbers;
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218
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219 // FIXME
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220 #define HOST_WIDE_INT long
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221 HOST_WIDE_INT var_frame_offset; // "frame_offset" is a macro
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222 bool clobbers_mem = code->clobbersMemory;
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223 int input_idx = 0;
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224 int n_outputs = 0;
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225 int arg_map[10];
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226
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227 assert(code->args.dim <= 10);
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228
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229 for (unsigned i = 0; i < code->args.dim; i++) {
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230 AsmArg * arg = (AsmArg *) code->args.data[i];
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231
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232 bool is_input = true;
229
cac3d27ae481 [svn r245] initial support for labels in inline asm, broken :/
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parents: 227
diff changeset
233 LLValue* arg_val = 0;
219
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234 std::string cns;
220
ccc2e6898a78 [svn r236] added initial codegen of inline asm, pretty buggy and incomplete still. see the tangotests/asm1.d test for a sample of what does
lindquist
parents: 219
diff changeset
235
219
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diff changeset
236 switch (arg->type) {
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diff changeset
237 case Arg_Integer:
229
cac3d27ae481 [svn r245] initial support for labels in inline asm, broken :/
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parents: 227
diff changeset
238 arg_val = arg->expr->toElem(irs)->getRVal();
219
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239 do_integer:
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240 cns = i_cns;
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diff changeset
241 break;
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diff changeset
242 case Arg_Pointer:
234
9760f54af0b7 [svn r250] Fixed the warning about dropping arguments to _Dmain when optimizing.
lindquist
parents: 233
diff changeset
243 assert(arg->expr->op == TOKvar);
9760f54af0b7 [svn r250] Fixed the warning about dropping arguments to _Dmain when optimizing.
lindquist
parents: 233
diff changeset
244 arg_val = arg->expr->toElem(irs)->getRVal();
9760f54af0b7 [svn r250] Fixed the warning about dropping arguments to _Dmain when optimizing.
lindquist
parents: 233
diff changeset
245 cns = p_cns;
220
ccc2e6898a78 [svn r236] added initial codegen of inline asm, pretty buggy and incomplete still. see the tangotests/asm1.d test for a sample of what does
lindquist
parents: 219
diff changeset
246
219
761c8352f494 [svn r235] rough port of GDC's inline assembler code, unfinished
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diff changeset
247 break;
761c8352f494 [svn r235] rough port of GDC's inline assembler code, unfinished
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diff changeset
248 case Arg_Memory:
229
cac3d27ae481 [svn r245] initial support for labels in inline asm, broken :/
lindquist
parents: 227
diff changeset
249 arg_val = arg->expr->toElem(irs)->getRVal();
220
ccc2e6898a78 [svn r236] added initial codegen of inline asm, pretty buggy and incomplete still. see the tangotests/asm1.d test for a sample of what does
lindquist
parents: 219
diff changeset
250
219
761c8352f494 [svn r235] rough port of GDC's inline assembler code, unfinished
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parents:
diff changeset
251 switch (arg->mode) {
761c8352f494 [svn r235] rough port of GDC's inline assembler code, unfinished
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diff changeset
252 case Mode_Input: cns = m_cns; break;
761c8352f494 [svn r235] rough port of GDC's inline assembler code, unfinished
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diff changeset
253 case Mode_Output: cns = mw_cns; is_input = false; break;
761c8352f494 [svn r235] rough port of GDC's inline assembler code, unfinished
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diff changeset
254 case Mode_Update: cns = mrw_cns; is_input = false; break;
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diff changeset
255 default: assert(0); break;
761c8352f494 [svn r235] rough port of GDC's inline assembler code, unfinished
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diff changeset
256 }
761c8352f494 [svn r235] rough port of GDC's inline assembler code, unfinished
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diff changeset
257 break;
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parents:
diff changeset
258 case Arg_FrameRelative:
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259 // FIXME
220
ccc2e6898a78 [svn r236] added initial codegen of inline asm, pretty buggy and incomplete still. see the tangotests/asm1.d test for a sample of what does
lindquist
parents: 219
diff changeset
260 std::cout << "asm fixme Arg_FrameRelative" << std::endl;
229
cac3d27ae481 [svn r245] initial support for labels in inline asm, broken :/
lindquist
parents: 227
diff changeset
261 assert(0);
219
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parents:
diff changeset
262 /* if (arg->expr->op == TOKvar)
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diff changeset
263 arg_val = ((VarExp *) arg->expr)->var->toSymbol()->Stree;
761c8352f494 [svn r235] rough port of GDC's inline assembler code, unfinished
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diff changeset
264 else
756
a58784e0f035 Merge wilsonk's x86-64 inline assembly.
Christian Kamm <kamm incasoftware de>
parents: 622
diff changeset
265 assert(0);
219
761c8352f494 [svn r235] rough port of GDC's inline assembler code, unfinished
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diff changeset
266 if ( getFrameRelativeValue(arg_val, & var_frame_offset) ) {
761c8352f494 [svn r235] rough port of GDC's inline assembler code, unfinished
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parents:
diff changeset
267 // arg_val = irs->integerConstant(var_frame_offset);
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diff changeset
268 cns = i_cns;
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diff changeset
269 } else {
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diff changeset
270 this->error("%s", "argument not frame relative");
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diff changeset
271 return;
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parents:
diff changeset
272 }
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diff changeset
273 if (arg->mode != Mode_Input)
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diff changeset
274 clobbers_mem = true;
756
a58784e0f035 Merge wilsonk's x86-64 inline assembly.
Christian Kamm <kamm incasoftware de>
parents: 622
diff changeset
275 break;*/
219
761c8352f494 [svn r235] rough port of GDC's inline assembler code, unfinished
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parents:
diff changeset
276 case Arg_LocalSize:
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277 // FIXME
220
ccc2e6898a78 [svn r236] added initial codegen of inline asm, pretty buggy and incomplete still. see the tangotests/asm1.d test for a sample of what does
lindquist
parents: 219
diff changeset
278 std::cout << "asm fixme Arg_LocalSize" << std::endl;
229
cac3d27ae481 [svn r245] initial support for labels in inline asm, broken :/
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parents: 227
diff changeset
279 assert(0);
219
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diff changeset
280 /* var_frame_offset = cfun->x_frame_offset;
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diff changeset
281 if (var_frame_offset < 0)
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diff changeset
282 var_frame_offset = - var_frame_offset;
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diff changeset
283 arg_val = irs->integerConstant( var_frame_offset );*/
761c8352f494 [svn r235] rough port of GDC's inline assembler code, unfinished
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diff changeset
284 goto do_integer;
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diff changeset
285 default:
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diff changeset
286 assert(0);
761c8352f494 [svn r235] rough port of GDC's inline assembler code, unfinished
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parents:
diff changeset
287 }
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parents:
diff changeset
288
761c8352f494 [svn r235] rough port of GDC's inline assembler code, unfinished
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parents:
diff changeset
289 if (is_input) {
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diff changeset
290 arg_map[i] = --input_idx;
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diff changeset
291 //inputs.cons(tree_cons(NULL_TREE, cns, NULL_TREE), arg_val);
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diff changeset
292 input_values.push_back(arg_val);
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diff changeset
293 input_constraints.push_back(cns);
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diff changeset
294 } else {
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diff changeset
295 arg_map[i] = n_outputs++;
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diff changeset
296 //outputs.cons(tree_cons(NULL_TREE, cns, NULL_TREE), arg_val);
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diff changeset
297 output_values.push_back(arg_val);
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diff changeset
298 output_constraints.push_back(cns);
761c8352f494 [svn r235] rough port of GDC's inline assembler code, unfinished
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299 }
761c8352f494 [svn r235] rough port of GDC's inline assembler code, unfinished
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diff changeset
300 }
761c8352f494 [svn r235] rough port of GDC's inline assembler code, unfinished
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parents:
diff changeset
301
761c8352f494 [svn r235] rough port of GDC's inline assembler code, unfinished
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parents:
diff changeset
302 // Telling GCC that callee-saved registers are clobbered makes it preserve
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parents:
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303 // those registers. This changes the stack from what a naked function
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304 // expects.
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305
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306 // FIXME
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307 // if (! irs->func->naked) {
756
a58784e0f035 Merge wilsonk's x86-64 inline assembly.
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308 assert(asmparser);
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309 for (int i = 0; i < code->regs.size(); i++) {
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310 if (code->regs[i]) {
219
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311 //clobbers.cons(NULL_TREE, regInfo[i].gccName);
756
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312 clobbers.push_back(asmparser->getRegName(i));
219
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313 }
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314 }
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315 if (clobbers_mem)
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316 clobbers.push_back(memory_name);
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317 //clobbers.cons(NULL_TREE, memory_name);
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318 // }
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319
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320
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321 // Remap argument numbers
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322 for (unsigned i = 0; i < code->args.dim; i++) {
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323 if (arg_map[i] < 0)
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324 arg_map[i] = -arg_map[i] - 1 + n_outputs;
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325 }
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326
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327 bool pct = false;
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328 char * p = code->insnTemplate;
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329 char * q = p + code->insnTemplateLen;
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330 //printf("start: %.*s\n", code->insnTemplateLen, code->insnTemplate);
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331 while (p < q) {
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332 if (pct) {
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333 if (*p >= '0' && *p <= '9') {
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334 // %% doesn't check against nargs
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335 *p = '0' + arg_map[*p - '0'];
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336 pct = false;
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337 } else if (*p == '$') {
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338 pct = false;
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339 }
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340 //assert(*p == '%');// could be 'a', etc. so forget it..
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341 } else if (*p == '$')
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342 pct = true;
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343 ++p;
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344 }
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345
237
a168a2c3ea48 [svn r253] Removed -inlineasm option. inline asm is now enabled by default unless the new -noasm option is passed.
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346 Logger::println("final asm: %.*s", code->insnTemplateLen, code->insnTemplate);
219
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347
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348 std::string insnt(code->insnTemplate, code->insnTemplateLen);
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349
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350 // rewrite GCC-style constraints to LLVM-style constraints
232
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351 std::string llvmOutConstraints;
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352 std::string llvmInConstraints;
219
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353 int n = 0;
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354 typedef std::deque<std::string>::iterator it;
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355 for(it i = output_constraints.begin(), e = output_constraints.end(); i != e; ++i, ++n) {
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356 // rewrite update constraint to in and out constraints
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357 if((*i)[0] == '+') {
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358 (*i)[0] = '=';
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359 std::string input_constraint;
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360 std::stringstream ss;
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361 ss << n;
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362 ss >> input_constraint;
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363 //FIXME: I think multiple inout constraints will mess up the order!
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364 input_constraints.push_front(input_constraint);
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365 input_values.push_front(output_values[n]);
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366 }
232
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367 llvmOutConstraints += *i;
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368 llvmOutConstraints += ",";
219
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369 }
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370 for(it i = input_constraints.begin(), e = input_constraints.end(); i != e; ++i) {
232
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371 llvmInConstraints += *i;
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372 llvmInConstraints += ",";
219
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373 }
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374
233
76ee1bbe487e [svn r249] Changed inline asm clobbers to a set instead of a list so we don't get duplicate clobbers.
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375 std::string clobstr;
232
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376 for(it i = clobbers.begin(), e = clobbers.end(); i != e; ++i) {
233
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377 clobstr = "~{" + *i + "},";
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378 asmblock->clobs.insert(clobstr);
220
ccc2e6898a78 [svn r236] added initial codegen of inline asm, pretty buggy and incomplete still. see the tangotests/asm1.d test for a sample of what does
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379 }
ccc2e6898a78 [svn r236] added initial codegen of inline asm, pretty buggy and incomplete still. see the tangotests/asm1.d test for a sample of what does
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380
232
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381 // excessive commas are removed later...
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382
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383 // push asm statement
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384 IRAsmStmt* asmStmt = new IRAsmStmt;
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385 asmStmt->code = insnt;
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386 asmStmt->out_c = llvmOutConstraints;
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387 asmStmt->in_c = llvmInConstraints;
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388 asmStmt->out.insert(asmStmt->out.begin(), output_values.begin(), output_values.end());
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389 asmStmt->in.insert(asmStmt->in.begin(), input_values.begin(), input_values.end());
299
df8a7b8d5929 [svn r320] Begun work on branches out of asm blocks. Unfinished.
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390 asmStmt->isBranchToLabel = isBranchToLabel;
233
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391 asmblock->s.push_back(asmStmt);
232
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392 }
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393
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394 //////////////////////////////////////////////////////////////////////////////
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395
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396 AsmBlockStatement::AsmBlockStatement(Loc loc, Statements* s)
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397 : CompoundStatement(loc, s)
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398 {
309
d59c363fccad [svn r330] Implemented synchronized statements.
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diff changeset
399 enclosinghandler = NULL;
356
44daf304421c [svn r377] The previous check was too strict, it completely disallowed gotos within finally blocks. This reenables them as long as they don't cross a finally boundary.
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400 tf = NULL;
232
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401 }
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402
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403 // rewrite argument indices to the block scope indices
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404 static void remap_outargs(std::string& insnt, size_t nargs, size_t& idx)
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405 {
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406 static const std::string digits[10] =
220
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407 {
232
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408 "0","1","2","3","4",
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409 "5","6","7","8","9"
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410 };
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411 assert(nargs <= 10);
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412
234
9760f54af0b7 [svn r250] Fixed the warning about dropping arguments to _Dmain when optimizing.
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413 static const std::string prefix("<<out");
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414 static const std::string suffix(">>");
232
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415 std::string argnum;
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416 std::string needle;
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417 char buf[10];
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418 for (unsigned i = 0; i < nargs; i++) {
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419 needle = prefix + digits[i] + suffix;
300
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420 size_t pos = insnt.find(needle);
303
4aa2b6753059 [svn r324] Small indentation fixes.
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421 if(std::string::npos != pos)
300
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422 sprintf(buf, "%u", idx++);
302
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423 while(std::string::npos != (pos = insnt.find(needle)))
300
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424 insnt.replace(pos, needle.size(), buf);
232
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425 }
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diff changeset
426 }
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diff changeset
427
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diff changeset
428 // rewrite argument indices to the block scope indices
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diff changeset
429 static void remap_inargs(std::string& insnt, size_t nargs, size_t& idx)
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430 {
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431 static const std::string digits[10] =
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diff changeset
432 {
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433 "0","1","2","3","4",
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434 "5","6","7","8","9"
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435 };
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diff changeset
436 assert(nargs <= 10);
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diff changeset
437
234
9760f54af0b7 [svn r250] Fixed the warning about dropping arguments to _Dmain when optimizing.
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diff changeset
438 static const std::string prefix("<<in");
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diff changeset
439 static const std::string suffix(">>");
232
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
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440 std::string argnum;
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441 std::string needle;
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diff changeset
442 char buf[10];
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diff changeset
443 for (unsigned i = 0; i < nargs; i++) {
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diff changeset
444 needle = prefix + digits[i] + suffix;
300
7b1040c76dd2 [svn r321] Fix bug in argument remapping functions.
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diff changeset
445 size_t pos = insnt.find(needle);
303
4aa2b6753059 [svn r324] Small indentation fixes.
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diff changeset
446 if(std::string::npos != pos)
300
7b1040c76dd2 [svn r321] Fix bug in argument remapping functions.
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diff changeset
447 sprintf(buf, "%u", idx++);
302
bef811104734 [svn r323] Branching out of inline asm works.
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diff changeset
448 while(std::string::npos != (pos = insnt.find(needle)))
300
7b1040c76dd2 [svn r321] Fix bug in argument remapping functions.
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diff changeset
449 insnt.replace(pos, needle.size(), buf);
232
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
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diff changeset
450 }
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diff changeset
451 }
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
452
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
453 void AsmBlockStatement::toIR(IRState* p)
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
454 {
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
455 Logger::println("AsmBlockStatement::toIR(): %s", loc.toChars());
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
456 LOG_SCOPE;
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
457 Logger::println("BEGIN ASM");
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
458
584
c7d7e2282ba3 Make sure functions containing inline asm are never inlined to avoid
Christian Kamm <kamm incasoftware de>
parents: 533
diff changeset
459 // disable inlining
c7d7e2282ba3 Make sure functions containing inline asm are never inlined to avoid
Christian Kamm <kamm incasoftware de>
parents: 533
diff changeset
460 gIR->func()->setNeverInline();
c7d7e2282ba3 Make sure functions containing inline asm are never inlined to avoid
Christian Kamm <kamm incasoftware de>
parents: 533
diff changeset
461
233
76ee1bbe487e [svn r249] Changed inline asm clobbers to a set instead of a list so we don't get duplicate clobbers.
lindquist
parents: 232
diff changeset
462 // create asm block structure
76ee1bbe487e [svn r249] Changed inline asm clobbers to a set instead of a list so we don't get duplicate clobbers.
lindquist
parents: 232
diff changeset
463 assert(!p->asmBlock);
76ee1bbe487e [svn r249] Changed inline asm clobbers to a set instead of a list so we don't get duplicate clobbers.
lindquist
parents: 232
diff changeset
464 IRAsmBlock* asmblock = new IRAsmBlock;
239
fa691b1c0498 [svn r256] AsmBlockStatement was still being flattened in some cases.
lindquist
parents: 237
diff changeset
465 assert(asmblock);
233
76ee1bbe487e [svn r249] Changed inline asm clobbers to a set instead of a list so we don't get duplicate clobbers.
lindquist
parents: 232
diff changeset
466 p->asmBlock = asmblock;
232
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
467
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
468 // do asm statements
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
469 for (int i=0; i<statements->dim; i++)
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
470 {
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
471 Statement* s = (Statement*)statements->data[i];
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
472 if (s) {
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
473 s->toIR(p);
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
474 }
220
ccc2e6898a78 [svn r236] added initial codegen of inline asm, pretty buggy and incomplete still. see the tangotests/asm1.d test for a sample of what does
lindquist
parents: 219
diff changeset
475 }
ccc2e6898a78 [svn r236] added initial codegen of inline asm, pretty buggy and incomplete still. see the tangotests/asm1.d test for a sample of what does
lindquist
parents: 219
diff changeset
476
299
df8a7b8d5929 [svn r320] Begun work on branches out of asm blocks. Unfinished.
ChristianK
parents: 239
diff changeset
477 // build forwarder for in-asm branches to external labels
df8a7b8d5929 [svn r320] Begun work on branches out of asm blocks. Unfinished.
ChristianK
parents: 239
diff changeset
478 // this additional asm code sets the __llvm_jump_target variable
df8a7b8d5929 [svn r320] Begun work on branches out of asm blocks. Unfinished.
ChristianK
parents: 239
diff changeset
479 // to a unique value that will identify the jump target in
df8a7b8d5929 [svn r320] Begun work on branches out of asm blocks. Unfinished.
ChristianK
parents: 239
diff changeset
480 // a post-asm switch
300
7b1040c76dd2 [svn r321] Fix bug in argument remapping functions.
ChristianK
parents: 299
diff changeset
481
312
553f844ae5b9 [svn r333] Fix inline asm bug with multiple branches to the same label.
ChristianK
parents: 309
diff changeset
482 // maps each goto destination to its special value
553f844ae5b9 [svn r333] Fix inline asm bug with multiple branches to the same label.
ChristianK
parents: 309
diff changeset
483 std::map<Identifier*, int> gotoToVal;
300
7b1040c76dd2 [svn r321] Fix bug in argument remapping functions.
ChristianK
parents: 299
diff changeset
484
312
553f844ae5b9 [svn r333] Fix inline asm bug with multiple branches to the same label.
ChristianK
parents: 309
diff changeset
485 // location of the special value determining the goto label
302
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
486 // will be set if post-asm dispatcher block is needed
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
487 llvm::AllocaInst* jump_target;
301
f42a1090e895 [svn r322] More asm-to-outside jumping work. Unfinished.
ChristianK
parents: 300
diff changeset
488
302
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
489 {
305
2b72433d5c8c [svn r326] Fixed a bunch of issues with printf's that MinGW32 did not support.
lindquist
parents: 304
diff changeset
490 FuncDeclaration* fd = gIR->func()->decl;
2b72433d5c8c [svn r326] Fixed a bunch of issues with printf's that MinGW32 did not support.
lindquist
parents: 304
diff changeset
491 char* fdmangle = fd->mangle();
2b72433d5c8c [svn r326] Fixed a bunch of issues with printf's that MinGW32 did not support.
lindquist
parents: 304
diff changeset
492
2b72433d5c8c [svn r326] Fixed a bunch of issues with printf's that MinGW32 did not support.
lindquist
parents: 304
diff changeset
493 // we use a simple static counter to make sure the new end labels are unique
2b72433d5c8c [svn r326] Fixed a bunch of issues with printf's that MinGW32 did not support.
lindquist
parents: 304
diff changeset
494 static size_t uniqueLabelsId = 0;
2b72433d5c8c [svn r326] Fixed a bunch of issues with printf's that MinGW32 did not support.
lindquist
parents: 304
diff changeset
495 std::ostringstream asmGotoEndLabel;
2b72433d5c8c [svn r326] Fixed a bunch of issues with printf's that MinGW32 did not support.
lindquist
parents: 304
diff changeset
496 asmGotoEndLabel << "." << fdmangle << "__llvm_asm_end" << uniqueLabelsId++;
2b72433d5c8c [svn r326] Fixed a bunch of issues with printf's that MinGW32 did not support.
lindquist
parents: 304
diff changeset
497
302
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
498 // initialize the setter statement we're going to build
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
499 IRAsmStmt* outSetterStmt = new IRAsmStmt;
305
2b72433d5c8c [svn r326] Fixed a bunch of issues with printf's that MinGW32 did not support.
lindquist
parents: 304
diff changeset
500 std::string asmGotoEnd = "jmp "+asmGotoEndLabel.str()+" ; ";
302
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
501 std::ostringstream code;
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
502 code << asmGotoEnd;
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
503
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
504 int n_goto = 1;
299
df8a7b8d5929 [svn r320] Begun work on branches out of asm blocks. Unfinished.
ChristianK
parents: 239
diff changeset
505
302
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
506 size_t n = asmblock->s.size();
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
507 for(size_t i=0; i<n; ++i)
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
508 {
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
509 IRAsmStmt* a = asmblock->s[i];
299
df8a7b8d5929 [svn r320] Begun work on branches out of asm blocks. Unfinished.
ChristianK
parents: 239
diff changeset
510
302
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
511 // skip non-branch statements
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
512 if(!a->isBranchToLabel)
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
513 continue;
299
df8a7b8d5929 [svn r320] Begun work on branches out of asm blocks. Unfinished.
ChristianK
parents: 239
diff changeset
514
302
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
515 // if internal, no special handling is necessary, skip
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
516 std::vector<Identifier*>::const_iterator it, end;
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
517 end = asmblock->internalLabels.end();
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
518 bool skip = false;
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
519 for(it = asmblock->internalLabels.begin(); it != end; ++it)
305
2b72433d5c8c [svn r326] Fixed a bunch of issues with printf's that MinGW32 did not support.
lindquist
parents: 304
diff changeset
520 if((*it)->equals(a->isBranchToLabel))
302
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
521 skip = true;
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
522 if(skip)
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
523 continue;
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
524
312
553f844ae5b9 [svn r333] Fix inline asm bug with multiple branches to the same label.
ChristianK
parents: 309
diff changeset
525 // if we already set things up for this branch target, skip
553f844ae5b9 [svn r333] Fix inline asm bug with multiple branches to the same label.
ChristianK
parents: 309
diff changeset
526 if(gotoToVal.find(a->isBranchToLabel) != gotoToVal.end())
553f844ae5b9 [svn r333] Fix inline asm bug with multiple branches to the same label.
ChristianK
parents: 309
diff changeset
527 continue;
553f844ae5b9 [svn r333] Fix inline asm bug with multiple branches to the same label.
ChristianK
parents: 309
diff changeset
528
302
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
529 // record that the jump needs to be handled in the post-asm dispatcher
312
553f844ae5b9 [svn r333] Fix inline asm bug with multiple branches to the same label.
ChristianK
parents: 309
diff changeset
530 gotoToVal[a->isBranchToLabel] = n_goto;
299
df8a7b8d5929 [svn r320] Begun work on branches out of asm blocks. Unfinished.
ChristianK
parents: 239
diff changeset
531
302
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
532 // provide an in-asm target for the branch and set value
305
2b72433d5c8c [svn r326] Fixed a bunch of issues with printf's that MinGW32 did not support.
lindquist
parents: 304
diff changeset
533 Logger::println("statement '%s' references outer label '%s': creating forwarder", a->code.c_str(), a->isBranchToLabel->string);
2b72433d5c8c [svn r326] Fixed a bunch of issues with printf's that MinGW32 did not support.
lindquist
parents: 304
diff changeset
534 code << fdmangle << '_' << a->isBranchToLabel->string << ": ; ";
302
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
535 code << "movl $<<in" << n_goto << ">>, $<<out0>> ; ";
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
536 //FIXME: Store the value -> label mapping somewhere, so it can be referenced later
305
2b72433d5c8c [svn r326] Fixed a bunch of issues with printf's that MinGW32 did not support.
lindquist
parents: 304
diff changeset
537 outSetterStmt->in.push_back(DtoConstUint(n_goto));
302
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
538 outSetterStmt->in_c += "i,";
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
539 code << asmGotoEnd;
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
540
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
541 ++n_goto;
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
542 }
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
543 if(code.str() != asmGotoEnd)
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
544 {
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
545 // finalize code
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
546 outSetterStmt->code = code.str();
305
2b72433d5c8c [svn r326] Fixed a bunch of issues with printf's that MinGW32 did not support.
lindquist
parents: 304
diff changeset
547 outSetterStmt->code += asmGotoEndLabel.str()+": ; ";
302
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
548
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
549 // create storage for and initialize the temporary
479
672eb4893b55 Move AllocaInst creation into DtoAlloca helper. Will enable special zero-init of fp80 reals' padding.
Christian Kamm <kamm incasoftware de>
parents: 356
diff changeset
550 jump_target = DtoAlloca(LLType::Int32Ty, "__llvm_jump_target");
305
2b72433d5c8c [svn r326] Fixed a bunch of issues with printf's that MinGW32 did not support.
lindquist
parents: 304
diff changeset
551 gIR->ir->CreateStore(DtoConstUint(0), jump_target);
302
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
552 // setup variable for output from asm
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
553 outSetterStmt->out_c = "=*m,";
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
554 outSetterStmt->out.push_back(jump_target);
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
555
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
556 asmblock->s.push_back(outSetterStmt);
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
557 }
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
558 else
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
559 delete outSetterStmt;
299
df8a7b8d5929 [svn r320] Begun work on branches out of asm blocks. Unfinished.
ChristianK
parents: 239
diff changeset
560 }
df8a7b8d5929 [svn r320] Begun work on branches out of asm blocks. Unfinished.
ChristianK
parents: 239
diff changeset
561
df8a7b8d5929 [svn r320] Begun work on branches out of asm blocks. Unfinished.
ChristianK
parents: 239
diff changeset
562
232
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
563 // build asm block
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
564 std::vector<LLValue*> outargs;
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
565 std::vector<LLValue*> inargs;
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
566 std::vector<const LLType*> outtypes;
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
567 std::vector<const LLType*> intypes;
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
568 std::string out_c;
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
569 std::string in_c;
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
570 std::string clobbers;
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
571 std::string code;
233
76ee1bbe487e [svn r249] Changed inline asm clobbers to a set instead of a list so we don't get duplicate clobbers.
lindquist
parents: 232
diff changeset
572 size_t asmIdx = 0;
232
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
573
302
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
574 size_t n = asmblock->s.size();
232
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
575 for (size_t i=0; i<n; ++i)
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
576 {
233
76ee1bbe487e [svn r249] Changed inline asm clobbers to a set instead of a list so we don't get duplicate clobbers.
lindquist
parents: 232
diff changeset
577 IRAsmStmt* a = asmblock->s[i];
232
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
578 assert(a);
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
579 size_t onn = a->out.size();
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
580 for (size_t j=0; j<onn; ++j)
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
581 {
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
582 outargs.push_back(a->out[j]);
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
583 outtypes.push_back(a->out[j]->getType());
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
584 }
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
585 if (!a->out_c.empty())
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
586 {
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
587 out_c += a->out_c;
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
588 }
300
7b1040c76dd2 [svn r321] Fix bug in argument remapping functions.
ChristianK
parents: 299
diff changeset
589 remap_outargs(a->code, onn+a->in.size(), asmIdx);
232
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
590 }
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
591 for (size_t i=0; i<n; ++i)
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
592 {
233
76ee1bbe487e [svn r249] Changed inline asm clobbers to a set instead of a list so we don't get duplicate clobbers.
lindquist
parents: 232
diff changeset
593 IRAsmStmt* a = asmblock->s[i];
232
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
594 assert(a);
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
595 size_t inn = a->in.size();
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
596 for (size_t j=0; j<inn; ++j)
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
597 {
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
598 inargs.push_back(a->in[j]);
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
599 intypes.push_back(a->in[j]->getType());
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
600 }
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
601 if (!a->in_c.empty())
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
602 {
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
603 in_c += a->in_c;
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
604 }
300
7b1040c76dd2 [svn r321] Fix bug in argument remapping functions.
ChristianK
parents: 299
diff changeset
605 remap_inargs(a->code, inn+a->out.size(), asmIdx);
232
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
606 if (!code.empty())
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
607 code += " ; ";
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
608 code += a->code;
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
609 }
233
76ee1bbe487e [svn r249] Changed inline asm clobbers to a set instead of a list so we don't get duplicate clobbers.
lindquist
parents: 232
diff changeset
610 asmblock->s.clear();
76ee1bbe487e [svn r249] Changed inline asm clobbers to a set instead of a list so we don't get duplicate clobbers.
lindquist
parents: 232
diff changeset
611
76ee1bbe487e [svn r249] Changed inline asm clobbers to a set instead of a list so we don't get duplicate clobbers.
lindquist
parents: 232
diff changeset
612 // append inputs
76ee1bbe487e [svn r249] Changed inline asm clobbers to a set instead of a list so we don't get duplicate clobbers.
lindquist
parents: 232
diff changeset
613 out_c += in_c;
232
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
614
233
76ee1bbe487e [svn r249] Changed inline asm clobbers to a set instead of a list so we don't get duplicate clobbers.
lindquist
parents: 232
diff changeset
615 // append clobbers
76ee1bbe487e [svn r249] Changed inline asm clobbers to a set instead of a list so we don't get duplicate clobbers.
lindquist
parents: 232
diff changeset
616 typedef std::set<std::string>::iterator clobs_it;
76ee1bbe487e [svn r249] Changed inline asm clobbers to a set instead of a list so we don't get duplicate clobbers.
lindquist
parents: 232
diff changeset
617 for (clobs_it i=asmblock->clobs.begin(); i!=asmblock->clobs.end(); ++i)
76ee1bbe487e [svn r249] Changed inline asm clobbers to a set instead of a list so we don't get duplicate clobbers.
lindquist
parents: 232
diff changeset
618 {
76ee1bbe487e [svn r249] Changed inline asm clobbers to a set instead of a list so we don't get duplicate clobbers.
lindquist
parents: 232
diff changeset
619 out_c += *i;
76ee1bbe487e [svn r249] Changed inline asm clobbers to a set instead of a list so we don't get duplicate clobbers.
lindquist
parents: 232
diff changeset
620 }
76ee1bbe487e [svn r249] Changed inline asm clobbers to a set instead of a list so we don't get duplicate clobbers.
lindquist
parents: 232
diff changeset
621
76ee1bbe487e [svn r249] Changed inline asm clobbers to a set instead of a list so we don't get duplicate clobbers.
lindquist
parents: 232
diff changeset
622 // remove excessive comma
232
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
623 if (!out_c.empty())
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
624 out_c.resize(out_c.size()-1);
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
625
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
626 Logger::println("code = \"%s\"", code.c_str());
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
627 Logger::println("constraints = \"%s\"", out_c.c_str());
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
628
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
629 std::vector<const LLType*> types;
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
630 types.insert(types.end(), outtypes.begin(), outtypes.end());
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
631 types.insert(types.end(), intypes.begin(), intypes.end());
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
632 llvm::FunctionType* fty = llvm::FunctionType::get(llvm::Type::VoidTy, types, false);
622
26fce59fe80a Wrapped all the most potentially expensive logging calls in a conditional to only do work when actually requested.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 584
diff changeset
633 if (Logger::enabled())
26fce59fe80a Wrapped all the most potentially expensive logging calls in a conditional to only do work when actually requested.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 584
diff changeset
634 Logger::cout() << "function type = " << *fty << '\n';
232
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
635 llvm::InlineAsm* ia = llvm::InlineAsm::get(fty, code, out_c, true);
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
636
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
637 std::vector<LLValue*> args;
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
638 args.insert(args.end(), outargs.begin(), outargs.end());
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
639 args.insert(args.end(), inargs.begin(), inargs.end());
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
640 llvm::CallInst* call = p->ir->CreateCall(ia, args.begin(), args.end(), "");
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
641
233
76ee1bbe487e [svn r249] Changed inline asm clobbers to a set instead of a list so we don't get duplicate clobbers.
lindquist
parents: 232
diff changeset
642 p->asmBlock = NULL;
232
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
643 Logger::println("END ASM");
299
df8a7b8d5929 [svn r320] Begun work on branches out of asm blocks. Unfinished.
ChristianK
parents: 239
diff changeset
644
302
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
645 // if asm contained external branches, emit goto forwarder code
312
553f844ae5b9 [svn r333] Fix inline asm bug with multiple branches to the same label.
ChristianK
parents: 309
diff changeset
646 if(!gotoToVal.empty())
302
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
647 {
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
648 assert(jump_target);
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
649
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
650 // make new blocks
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
651 llvm::BasicBlock* oldend = gIR->scopeend();
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
652 llvm::BasicBlock* bb = llvm::BasicBlock::Create("afterasmgotoforwarder", p->topfunc(), oldend);
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
653
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
654 llvm::LoadInst* val = p->ir->CreateLoad(jump_target, "__llvm_jump_target_value");
312
553f844ae5b9 [svn r333] Fix inline asm bug with multiple branches to the same label.
ChristianK
parents: 309
diff changeset
655 llvm::SwitchInst* sw = p->ir->CreateSwitch(val, bb, gotoToVal.size());
302
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
656
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
657 // add all cases
312
553f844ae5b9 [svn r333] Fix inline asm bug with multiple branches to the same label.
ChristianK
parents: 309
diff changeset
658 std::map<Identifier*, int>::iterator it, end = gotoToVal.end();
553f844ae5b9 [svn r333] Fix inline asm bug with multiple branches to the same label.
ChristianK
parents: 309
diff changeset
659 for(it = gotoToVal.begin(); it != end; ++it)
302
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
660 {
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
661 llvm::BasicBlock* casebb = llvm::BasicBlock::Create("case", p->topfunc(), bb);
312
553f844ae5b9 [svn r333] Fix inline asm bug with multiple branches to the same label.
ChristianK
parents: 309
diff changeset
662 sw->addCase(llvm::ConstantInt::get(llvm::IntegerType::get(32), it->second), casebb);
302
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
663
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
664 p->scope() = IRScope(casebb,bb);
356
44daf304421c [svn r377] The previous check was too strict, it completely disallowed gotos within finally blocks. This reenables them as long as they don't cross a finally boundary.
ChristianK
parents: 336
diff changeset
665 DtoGoto(&loc, it->first, enclosinghandler, tf);
302
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
666 }
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
667
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
668 p->scope() = IRScope(bb,oldend);
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
669 }
219
761c8352f494 [svn r235] rough port of GDC's inline assembler code, unfinished
ChristianK
parents:
diff changeset
670 }
232
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
671
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
672 // the whole idea of this statement is to avoid the flattening
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
673 Statements* AsmBlockStatement::flatten(Scope* sc)
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
674 {
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
675 return NULL;
092468448d25 [svn r248] Fixed: labels in inline asm block now work for the normal case.
lindquist
parents: 231
diff changeset
676 }
239
fa691b1c0498 [svn r256] AsmBlockStatement was still being flattened in some cases.
lindquist
parents: 237
diff changeset
677
fa691b1c0498 [svn r256] AsmBlockStatement was still being flattened in some cases.
lindquist
parents: 237
diff changeset
678 Statement *AsmBlockStatement::syntaxCopy()
fa691b1c0498 [svn r256] AsmBlockStatement was still being flattened in some cases.
lindquist
parents: 237
diff changeset
679 {
fa691b1c0498 [svn r256] AsmBlockStatement was still being flattened in some cases.
lindquist
parents: 237
diff changeset
680 Statements *a = new Statements();
fa691b1c0498 [svn r256] AsmBlockStatement was still being flattened in some cases.
lindquist
parents: 237
diff changeset
681 a->setDim(statements->dim);
fa691b1c0498 [svn r256] AsmBlockStatement was still being flattened in some cases.
lindquist
parents: 237
diff changeset
682 for (size_t i = 0; i < statements->dim; i++)
fa691b1c0498 [svn r256] AsmBlockStatement was still being flattened in some cases.
lindquist
parents: 237
diff changeset
683 {
fa691b1c0498 [svn r256] AsmBlockStatement was still being flattened in some cases.
lindquist
parents: 237
diff changeset
684 Statement *s = (Statement *)statements->data[i];
fa691b1c0498 [svn r256] AsmBlockStatement was still being flattened in some cases.
lindquist
parents: 237
diff changeset
685 if (s)
fa691b1c0498 [svn r256] AsmBlockStatement was still being flattened in some cases.
lindquist
parents: 237
diff changeset
686 s = s->syntaxCopy();
fa691b1c0498 [svn r256] AsmBlockStatement was still being flattened in some cases.
lindquist
parents: 237
diff changeset
687 a->data[i] = s;
fa691b1c0498 [svn r256] AsmBlockStatement was still being flattened in some cases.
lindquist
parents: 237
diff changeset
688 }
fa691b1c0498 [svn r256] AsmBlockStatement was still being flattened in some cases.
lindquist
parents: 237
diff changeset
689 AsmBlockStatement *cs = new AsmBlockStatement(loc, a);
fa691b1c0498 [svn r256] AsmBlockStatement was still being flattened in some cases.
lindquist
parents: 237
diff changeset
690 return cs;
299
df8a7b8d5929 [svn r320] Begun work on branches out of asm blocks. Unfinished.
ChristianK
parents: 239
diff changeset
691 }
302
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
692
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
693 // necessary for in-asm branches
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
694 Statement *AsmBlockStatement::semantic(Scope *sc)
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
695 {
309
d59c363fccad [svn r330] Implemented synchronized statements.
lindquist
parents: 305
diff changeset
696 enclosinghandler = sc->tfOfTry;
356
44daf304421c [svn r377] The previous check was too strict, it completely disallowed gotos within finally blocks. This reenables them as long as they don't cross a finally boundary.
ChristianK
parents: 336
diff changeset
697 tf = sc->tf;
302
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
698
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
699 return CompoundStatement::semantic(sc);
bef811104734 [svn r323] Branching out of inline asm works.
ChristianK
parents: 301
diff changeset
700 }