Mercurial > projects > ldc
annotate dmd2/mars.h @ 1047:6bb04dbee21f
Some calling convention work for x86-64:
- Implement x86-64 extern(C), hopefully correctly.
- Tried to be a bit smarter about extern(D) while I was there.
Interestingly, this code seems to be generating more efficient code than
gcc and llvm-gcc in some edge cases, like returning a `{ [7 x i8] }` loaded from
a stack slot from an extern(C) function. (gcc generates 7 1-byte loads, while
this code generates a 4-byte, a 2-byte and a 1-byte load)
I also added some changes to make sure structs being returned from functions or
passed in as parameters are stored in memory where the rest of the backend seems
to expect them to be. These should be removed when support for first-class
aggregates improves.
author | Frits van Bommel <fvbommel wxs.nl> |
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date | Fri, 06 Mar 2009 16:00:47 +0100 |
parents | 2667e3a145be |
children | f0b6549055ab |
rev | line source |
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1 |
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2 // Compiler implementation of the D programming language |
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3 // Copyright (c) 1999-2007 by Digital Mars |
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4 // All Rights Reserved |
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5 // written by Walter Bright |
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6 // http://www.digitalmars.com |
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7 // License for redistribution is by either the Artistic License |
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8 // in artistic.txt, or the GNU General Public License in gnu.txt. |
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9 // See the included readme.txt for details. |
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10 |
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11 #ifndef DMD_MARS_H |
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12 #define DMD_MARS_H |
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13 |
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14 #ifdef __DMC__ |
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15 #pragma once |
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16 #endif /* __DMC__ */ |
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17 |
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18 #include <stdint.h> |
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19 #include <stdarg.h> |
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20 #include <stddef.h> |
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21 #define __STDC_FORMAT_MACROS 1 |
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22 #include <inttypes.h> |
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23 #include <stdarg.h> |
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24 |
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25 #ifdef __DMC__ |
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26 #ifdef DEBUG |
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27 #undef assert |
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28 #define assert(e) (static_cast<void>((e) || (printf("assert %s(%d) %s\n", __FILE__, __LINE__, #e), halt()))) |
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29 #endif |
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30 #endif |
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31 |
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32 #ifdef IN_GCC |
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33 /* Changes for the GDC compiler by David Friedman */ |
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34 #endif |
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35 |
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36 #define BREAKABI 1 // 0 if not ready to break the ABI just yet |
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37 #define STRUCTTHISREF V2 // if 'this' for struct is a reference, not a pointer |
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38 |
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39 struct Array; |
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40 |
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41 // LDC |
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42 enum ARCH |
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43 { |
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44 ARCHinvalid, |
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45 ARCHx86, |
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46 ARCHx86_64, |
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47 ARCHppc, |
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48 ARCHppc_64, |
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49 ARCHarm, |
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50 ARCHthumb |
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51 }; |
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52 enum OUTPUTFLAG |
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53 { |
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54 OUTPUTFLAGno, |
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55 OUTPUTFLAGdefault, // for the .o default |
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56 OUTPUTFLAGset // for -output |
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57 }; |
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58 |
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59 enum OS |
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60 { |
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61 OSinvalid, |
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62 OSLinux, |
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63 OSWindows, |
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64 OSMacOSX, |
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Port some LDC1 portability fixes to LDC2. Fixes #196.
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65 OSFreeBSD, |
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66 OSSolaris, |
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67 }; |
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68 |
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69 // make it easier to test new linkage types |
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70 #define TEMPLATE_LINKAGE_TYPE llvm::GlobalValue::LinkOnceLinkage |
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71 #define TYPEINFO_LINKAGE_TYPE llvm::GlobalValue::LinkOnceLinkage |
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72 |
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73 // Put command line switches in here |
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74 struct Param |
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75 { |
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76 bool obj; // write object file |
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77 bool link; // perform link |
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78 bool verbose; // verbose compile |
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79 char symdebug; // insert debug symbolic information |
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80 bool optimize; // run optimizer |
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81 char optimizeLevel; // optimization level |
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82 ARCH cpu; // target CPU |
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83 OS os; // target OS |
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84 bool is64bit; // generate 64 bit code |
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85 bool isLE; // generate little endian code |
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86 bool useDeprecated; // allow use of deprecated features |
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87 bool useAssert; // generate runtime code for assert()'s |
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88 bool useInvariants; // generate class invariant checks |
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89 bool useIn; // generate precondition checks |
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90 bool useOut; // generate postcondition checks |
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91 bool useArrayBounds; // generate array bounds checks |
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92 bool useSwitchError; // check for switches without a default |
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93 bool useUnitTests; // generate unittest code |
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94 bool useInline; // inline expand functions |
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95 bool warnings; // enable warnings |
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96 bool safe; // enforce safe memory model |
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97 char Dversion; // D version number |
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98 |
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99 char *argv0; // program name |
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100 Array *imppath; // array of char*'s of where to look for import modules |
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101 Array *fileImppath; // array of char*'s of where to look for file import modules |
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102 char *objdir; // .obj file output directory |
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103 char *objname; // .obj file output name |
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104 |
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105 bool doDocComments; // process embedded documentation comments |
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106 char *docdir; // write documentation file to docdir directory |
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107 char *docname; // write documentation file to docname |
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108 Array *ddocfiles; // macro include files for Ddoc |
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109 |
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110 bool doHdrGeneration; // process embedded documentation comments |
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111 char *hdrdir; // write 'header' file to docdir directory |
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112 char *hdrname; // write 'header' file to docname |
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113 |
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114 unsigned debuglevel; // debug level |
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115 Array *debugids; // debug identifiers |
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116 |
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117 unsigned versionlevel; // version level |
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118 Array *versionids; // version identifiers |
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119 |
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120 bool dump_source; |
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121 |
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122 Array *defaultlibnames; // default libraries for non-debug builds |
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123 Array *debuglibnames; // default libraries for debug builds |
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124 |
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125 char *xmlname; // filename for XML output |
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126 |
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127 // Hidden debug switches |
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128 bool debuga; |
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129 bool debugb; |
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130 bool debugc; |
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131 bool debugf; |
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132 bool debugr; |
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133 bool debugw; |
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134 bool debugx; |
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135 bool debugy; |
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136 |
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137 bool run; // run resulting executable |
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138 |
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139 // Linker stuff |
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140 Array *objfiles; |
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141 Array *linkswitches; |
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142 Array *libfiles; |
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143 char *deffile; |
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144 char *resfile; |
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145 char *exefile; |
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146 |
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147 // LDC stuff |
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148 OUTPUTFLAG output_ll; |
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149 OUTPUTFLAG output_bc; |
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150 OUTPUTFLAG output_s; |
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151 OUTPUTFLAG output_o; |
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152 bool llvmInline; |
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153 bool llvmAnnotate; |
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154 bool useInlineAsm; |
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155 |
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156 // target stuff |
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157 const char* llvmArch; |
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158 const char *targetTriple; |
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159 const char *dataLayout; |
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160 }; |
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161 |
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162 struct Global |
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163 { |
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164 char *mars_ext; |
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165 char *sym_ext; |
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166 char *obj_ext; |
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167 #if _WIN32 |
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168 char *obj_ext_alt; |
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169 #endif |
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170 char *ll_ext; |
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171 char *bc_ext; |
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172 char *s_ext; |
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173 char *doc_ext; // for Ddoc generated files |
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174 char *ddoc_ext; // for Ddoc macro include files |
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175 char *hdr_ext; // for D 'header' import files |
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176 char *copyright; |
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177 char *written; |
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178 Array *path; // Array of char*'s which form the import lookup path |
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179 Array *filePath; // Array of char*'s which form the file import lookup path |
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180 int structalign; |
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181 char *version; |
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182 char *ldc_version; |
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183 char *llvm_version; |
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184 |
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185 Param params; |
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186 unsigned errors; // number of errors reported so far |
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187 unsigned gag; // !=0 means gag reporting of errors |
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188 |
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189 Global(); |
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190 }; |
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191 |
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192 extern Global global; |
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193 |
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194 /* Set if Windows Structured Exception Handling C extensions are supported. |
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195 * Apparently, VC has dropped support for these? |
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196 */ |
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197 #define WINDOWS_SEH (_WIN32 && __DMC__) |
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198 |
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199 |
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200 #if __GNUC__ |
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201 //#define memicmp strncasecmp |
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202 //#define stricmp strcasecmp |
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203 #endif |
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204 |
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205 #ifdef __DMC__ |
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206 typedef _Complex long double complex_t; |
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207 #else |
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208 #ifndef IN_GCC |
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209 #include "complex_t.h" |
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210 #endif |
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211 #ifdef __APPLE__ |
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212 //#include "complex.h"//This causes problems with include the c++ <complex> and not the C "complex.h" |
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213 #define integer_t dmd_integer_t |
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214 #endif |
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215 #endif |
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216 |
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217 // Be careful not to care about sign when using integer_t |
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218 typedef uint64_t integer_t; |
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219 |
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220 // Signed and unsigned variants |
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221 typedef int64_t sinteger_t; |
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222 typedef uint64_t uinteger_t; |
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223 |
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224 typedef int8_t d_int8; |
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225 typedef uint8_t d_uns8; |
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226 typedef int16_t d_int16; |
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227 typedef uint16_t d_uns16; |
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228 typedef int32_t d_int32; |
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229 typedef uint32_t d_uns32; |
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230 typedef int64_t d_int64; |
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231 typedef uint64_t d_uns64; |
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232 |
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233 typedef float d_float32; |
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234 typedef double d_float64; |
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235 typedef long double d_float80; |
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236 |
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237 typedef d_uns8 d_char; |
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238 typedef d_uns16 d_wchar; |
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239 typedef d_uns32 d_dchar; |
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240 |
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241 #ifdef IN_GCC |
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242 #include "d-gcc-real.h" |
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243 #else |
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244 typedef long double real_t; |
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245 #endif |
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246 |
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247 // Modify OutBuffer::writewchar to write the correct size of wchar |
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248 #if _WIN32 |
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249 #define writewchar writeword |
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250 #else |
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251 // This needs a configuration test... |
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252 #define writewchar write4 |
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253 #endif |
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254 |
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255 #ifdef IN_GCC |
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256 #include "d-gcc-complex_t.h" |
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257 #endif |
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258 |
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259 // taken from GDC |
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260 // for handling printf incompatibilities |
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261 #if __MSVCRT__ |
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262 #define PRIuSIZE "Iu" |
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263 #define PRIxSIZE "Ix" |
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264 #elif __MINGW32__ |
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265 #define PRIuSIZE "u" |
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266 #define PRIxSIZE "x" |
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267 #else |
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268 #define PRIuSIZE "zu" |
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269 #define PRIxSIZE "zx" |
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270 #endif |
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271 |
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272 struct Module; |
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273 |
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274 //typedef unsigned Loc; // file location |
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275 struct Loc |
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276 { |
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277 char *filename; |
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278 unsigned linnum; |
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279 |
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280 Loc() |
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281 { |
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282 linnum = 0; |
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283 filename = NULL; |
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284 } |
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285 |
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286 Loc(int x) |
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287 { |
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288 linnum = x; |
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289 filename = NULL; |
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290 } |
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291 |
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292 Loc(Module *mod, unsigned linnum); |
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293 |
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294 char *toChars() const; |
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295 }; |
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296 |
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297 #ifndef GCC_SAFE_DMD |
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298 #define TRUE 1 |
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299 #define FALSE 0 |
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300 #endif |
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301 |
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302 #define INTERFACE_OFFSET 0 // if 1, put classinfo as first entry |
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303 // in interface vtbl[]'s |
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304 #define INTERFACE_VIRTUAL 0 // 1 means if an interface appears |
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305 // in the inheritance graph multiple |
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306 // times, only one is used |
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307 |
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308 enum LINK |
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309 { |
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310 LINKdefault, |
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311 LINKd, |
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312 LINKc, |
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313 LINKcpp, |
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314 LINKwindows, |
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315 LINKpascal, |
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316 |
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317 // LDC |
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318 LINKintrinsic, |
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319 }; |
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320 |
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321 enum DYNCAST |
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322 { |
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323 DYNCAST_OBJECT, |
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324 DYNCAST_EXPRESSION, |
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325 DYNCAST_DSYMBOL, |
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326 DYNCAST_TYPE, |
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327 DYNCAST_IDENTIFIER, |
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328 DYNCAST_TUPLE, |
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329 }; |
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330 |
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331 enum MATCH |
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332 { |
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333 MATCHnomatch, // no match |
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334 MATCHconvert, // match with conversions |
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335 #if DMDV2 |
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336 MATCHconst, // match with conversion to const |
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337 #endif |
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338 MATCHexact // exact match |
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339 }; |
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340 |
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341 void error(Loc loc, const char *format, ...); |
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342 void verror(Loc loc, const char *format, va_list); |
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343 void fatal(); |
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344 void err_nomem(); |
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345 void inifile(char *argv0, const char *inifile); |
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346 void halt(); |
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347 |
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348 /*** Where to send error messages ***/ |
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349 #if IN_GCC || IN_LLVM |
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350 #define stdmsg stderr |
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351 #else |
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352 #define stdmsg stdout |
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353 #endif |
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354 |
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355 #endif /* DMD_MARS_H */ |