tools/llvm-upgrade/UpgradeLexer.l

   1 /*===-- UpgradeLexer.l - Scanner for 1.9 assembly files --------*- C++ -*--===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file was developed by Reid Spencer and is distributed under the
   6 // University of Illinois Open Source License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 //  This file implements the flex scanner for LLVM 1.9 assembly languages files.
  11 //
  12 //===----------------------------------------------------------------------===*/
  13
  14 %option prefix="Upgrade"
  15 %option yylineno
  16 %option nostdinit
  17 %option never-interactive
  18 %option batch
  19 %option noyywrap
  20 %option nodefault
  21 %option 8bit
  22 %option outfile="UpgradeLexer.cpp"
  23 %option ecs
  24 %option noreject
  25 %option noyymore
  26
  27 %{
  28
  29 #include "UpgradeInternals.h"
  30 #include "UpgradeParser.h"
  31 #include <cctype>
  32 #include <cstdlib>
  33
  34 #define YY_INPUT(buf,result,max_size) \
  35 { \
  36   if (LexInput->good() && !LexInput->eof()) { \
  37     LexInput->read(buf,max_size); \
  38     result = LexInput->gcount(); \
  39   } else {\
  40     result = YY_NULL; \
  41   } \
  42 }
  43
  44
  45 // Construct a token value for a non-obsolete token
  46 #define RET_TOK(sym) \
  47   Upgradelval.String = new std::string(yytext); \
  48   return sym
  49
  50 #define RET_TY(sym,OldTY,NewTY,sign) \
  51   Upgradelval.Ty = getType(NewTY, OldTY); \
  52   return sym
  53
  54 #define YY_NEVER_INTERACTIVE 1
  55 %}
  56
  57
  58
  59 /* Comments start with a ; and go till end of line */
  60 Comment    ;.*
  61
  62 /* Variable(Value) identifiers start with a % sign */
  63 VarID       %[-a-zA-Z$._][-a-zA-Z$._0-9]*
  64
  65 /* Label identifiers end with a colon */
  66 Label       [-a-zA-Z$._0-9]+:
  67 QuoteLabel \"[^\"]+\":
  68
  69 /* Quoted names can contain any character except " and \ */
  70 StringConstant \"[^\"]*\"
  71
  72
  73 /* [PN]Integer: match positive and negative literal integer values that
  74  * are preceeded by a '%' character.  These represent unnamed variable slots.
  75  */
  76 EPInteger     %[0-9]+
  77 ENInteger    %-[0-9]+
  78
  79
  80 /* E[PN]Integer: match positive and negative literal integer values */
  81 PInteger   [0-9]+
  82 NInteger  -[0-9]+
  83
  84 /* FPConstant - A Floating point constant.
  85  */
  86 FPConstant [-+]?[0-9]+[.][0-9]*([eE][-+]?[0-9]+)?
  87
  88 /* HexFPConstant - Floating point constant represented in IEEE format as a
  89  *  hexadecimal number for when exponential notation is not precise enough.
  90  */
  91 HexFPConstant 0x[0-9A-Fa-f]+
  92
  93 /* HexIntConstant - Hexadecimal constant generated by the CFE to avoid forcing
  94  * it to deal with 64 bit numbers.
  95  */
  96 HexIntConstant [us]0x[0-9A-Fa-f]+
  97 %%
  98
  99 {Comment}       { /* Ignore comments for now */ }
 100
 101 begin           { RET_TOK( BEGINTOK); }
 102 end             { RET_TOK( ENDTOK); }
 103 true            { RET_TOK( TRUETOK);  }
 104 false           { RET_TOK( FALSETOK); }
 105 declare         { RET_TOK( DECLARE); }
 106 global          { RET_TOK( GLOBAL); }
 107 constant        { RET_TOK( CONSTANT); }
 108 internal        { RET_TOK( INTERNAL); }
 109 linkonce        { RET_TOK( LINKONCE); }
 110 weak            { RET_TOK( WEAK); }
 111 appending       { RET_TOK( APPENDING); }
 112 dllimport       { RET_TOK( DLLIMPORT); }
 113 dllexport       { RET_TOK( DLLEXPORT); }
 114 extern_weak     { RET_TOK( EXTERN_WEAK); }
 115 external        { RET_TOK( EXTERNAL); }
 116 uninitialized   { RET_TOK( UNINITIALIZED); }  // alias for external
 117 implementation  { RET_TOK( IMPLEMENTATION); }
 118 zeroinitializer { RET_TOK( ZEROINITIALIZER); }
 119 \.\.\.          { RET_TOK( DOTDOTDOT); }
 120 undef           { RET_TOK( UNDEF); }
 121 null            { RET_TOK( NULL_TOK); }
 122 to              { RET_TOK( TO); }
 123 tail            { RET_TOK( TAIL); }
 124 target          { RET_TOK( TARGET); }
 125 triple          { RET_TOK( TRIPLE); }
 126 deplibs         { RET_TOK( DEPLIBS); }
 127 endian          { RET_TOK( ENDIAN); }
 128 pointersize     { RET_TOK( POINTERSIZE); }
 129 datalayout      { RET_TOK( DATALAYOUT); }
 130 little          { RET_TOK( LITTLE); }
 131 big             { RET_TOK( BIG); }
 132 volatile        { RET_TOK( VOLATILE); }
 133 align           { RET_TOK( ALIGN);  }
 134 section         { RET_TOK( SECTION); }
 135 module          { RET_TOK( MODULE); }
 136 asm             { RET_TOK( ASM_TOK); }
 137 sideeffect      { RET_TOK( SIDEEFFECT); }
 138
 139 cc              { RET_TOK( CC_TOK); }
 140 ccc             { RET_TOK( CCC_TOK); }
 141 csretcc         { RET_TOK( CSRETCC_TOK); }
 142 fastcc          { RET_TOK( FASTCC_TOK); }
 143 coldcc          { RET_TOK( COLDCC_TOK); }
 144 x86_stdcallcc   { RET_TOK( X86_STDCALLCC_TOK); }
 145 x86_fastcallcc  { RET_TOK( X86_FASTCALLCC_TOK); }
 146
 147 void            { RET_TY(VOID,VoidTy,"void",false); }
 148 bool            { RET_TY(BOOL,BoolTy,"i1",false); }
 149 sbyte           { RET_TY(SBYTE,SByteTy,"i8",true); }
 150 ubyte           { RET_TY(UBYTE,UByteTy,"i8",false); }
 151 short           { RET_TY(SHORT,ShortTy,"i16",true); }
 152 ushort          { RET_TY(USHORT,UShortTy,"i16",false); }
 153 int             { RET_TY(INT,IntTy,"i32",true);   }
 154 uint            { RET_TY(UINT,UIntTy,"i32",false);  }
 155 long            { RET_TY(LONG,LongTy,"i64",true);  }
 156 ulong           { RET_TY(ULONG,ULongTy,"i64",false); }
 157 i8              { RET_TY(UBYTE,UByteTy,"i8",false); }
 158 i16             { RET_TY(USHORT,UShortTy,"i16",false); }
 159 i32             { RET_TY(UINT,UIntTy,"i32",false); }
 160 i64             { RET_TY(ULONG,ULongTy,"i64",false); }
 161 float           { RET_TY(FLOAT,FloatTy,"float",false); }
 162 double          { RET_TY(DOUBLE,DoubleTy,"double",false); }
 163 label           { RET_TY(LABEL,LabelTy,"label",false); }
 164 opaque          { RET_TOK(OPAQUE); }
 165 type            { RET_TOK(TYPE);   }
 166
 167 add             { RET_TOK( ADD); }
 168 sub             { RET_TOK( SUB); }
 169 mul             { RET_TOK( MUL); }
 170 div             { RET_TOK( DIV); }
 171 udiv            { RET_TOK( UDIV); }
 172 sdiv            { RET_TOK( SDIV); }
 173 fdiv            { RET_TOK( FDIV); }
 174 rem             { RET_TOK( REM);  }
 175 urem            { RET_TOK( UREM); }
 176 srem            { RET_TOK( SREM); }
 177 frem            { RET_TOK( FREM); }
 178 and             { RET_TOK( AND); }
 179 or              { RET_TOK( OR); }
 180 xor             { RET_TOK( XOR); }
 181 setne           { RET_TOK( SETNE); }
 182 seteq           { RET_TOK( SETEQ); }
 183 setlt           { RET_TOK( SETLT); }
 184 setgt           { RET_TOK( SETGT); }
 185 setle           { RET_TOK( SETLE); }
 186 setge           { RET_TOK( SETGE); }
 187 icmp            { RET_TOK(ICMP); }
 188 fcmp            { RET_TOK(FCMP); }
 189 eq              { RET_TOK(EQ); }
 190 ne              { RET_TOK(NE); }
 191 slt             { RET_TOK(SLT); }
 192 sgt             { RET_TOK(SGT); }
 193 sle             { RET_TOK(SLE); }
 194 sge             { RET_TOK(SGE); }
 195 oeq             { RET_TOK(OEQ); }
 196 one             { RET_TOK(ONE); }
 197 olt             { RET_TOK(OLT); }
 198 ogt             { RET_TOK(OGT); }
 199 ole             { RET_TOK(OLE); }
 200 oge             { RET_TOK(OGE); }
 201 ord             { RET_TOK(ORD); }
 202 uno             { RET_TOK(UNO); }
 203 ueq             { RET_TOK(UEQ); }
 204 une             { RET_TOK(UNE); }
 205 ult             { RET_TOK(ULT); }
 206 ugt             { RET_TOK(UGT); }
 207 ule             { RET_TOK(ULE); }
 208 uge             { RET_TOK(UGE); }
 209
 210 phi             { RET_TOK( PHI_TOK); }
 211 call            { RET_TOK( CALL); }
 212 cast            { RET_TOK( CAST); }
 213 trunc           { RET_TOK( TRUNC); }
 214 zext            { RET_TOK( ZEXT); }
 215 sext            { RET_TOK( SEXT); }
 216 fptrunc         { RET_TOK( FPTRUNC); }
 217 fpext           { RET_TOK( FPEXT); }
 218 fptoui          { RET_TOK( FPTOUI); }
 219 fptosi          { RET_TOK( FPTOSI); }
 220 uitofp          { RET_TOK( UITOFP); }
 221 sitofp          { RET_TOK( SITOFP); }
 222 ptrtoint        { RET_TOK( PTRTOINT); }
 223 inttoptr        { RET_TOK( INTTOPTR); }
 224 bitcast         { RET_TOK( BITCAST); }
 225 select          { RET_TOK( SELECT); }
 226 shl             { RET_TOK( SHL); }
 227 shr             { RET_TOK( SHR); }
 228 ashr            { RET_TOK( ASHR); }
 229 lshr            { RET_TOK( LSHR); }
 230 va_arg          { RET_TOK( VAARG); }
 231 ret             { RET_TOK( RET); }
 232 br              { RET_TOK( BR); }
 233 switch          { RET_TOK( SWITCH); }
 234 invoke          { RET_TOK( INVOKE); }
 235 unwind          { RET_TOK( UNWIND); }
 236 except          { RET_TOK( EXCEPT); } // alias for unwind
 237 unreachable     { RET_TOK( UNREACHABLE); }
 238
 239 malloc          { RET_TOK( MALLOC); }
 240 alloca          { RET_TOK( ALLOCA); }
 241 free            { RET_TOK( FREE); }
 242 load            { RET_TOK( LOAD); }
 243 store           { RET_TOK( STORE); }
 244 getelementptr   { RET_TOK( GETELEMENTPTR); }
 245
 246 extractelement  { RET_TOK( EXTRACTELEMENT); }
 247 insertelement   { RET_TOK( INSERTELEMENT); }
 248 shufflevector   { RET_TOK( SHUFFLEVECTOR); }
 249
 250
 251 {VarID}          { RET_TOK( VAR_ID); }
 252 {Label}          { RET_TOK( LABELSTR); }
 253 {QuoteLabel}     { RET_TOK( LABELSTR); }
 254 {StringConstant} { RET_TOK( STRINGCONSTANT ); }
 255 {PInteger}       { RET_TOK( EUINT64VAL ); }
 256 {NInteger}       { RET_TOK( ESINT64VAL ); }
 257 {HexIntConstant} { RET_TOK( yytext[0] == 's' ? ESINT64VAL : EUINT64VAL ); }
 258 {EPInteger}      { RET_TOK( UINTVAL); }
 259 {ENInteger}      { RET_TOK( SINTVAL); }
 260 {FPConstant}     { RET_TOK( FPVAL); }
 261 {HexFPConstant}  { RET_TOK( FPVAL); }
 262 <<EOF>>          {
 263                   /* Make sure to free the internal buffers for flex when we are
 264                    * done reading our input!
 265                    */
 266                   yy_delete_buffer(YY_CURRENT_BUFFER);
 267                   return EOF;
 268                 }
 269
 270 [ \r\t\n]       { /* Ignore whitespace */ }
 271 .               { return yytext[0]; }
 272
 273 %%