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llvm-mirror/tools/llvm-upgrade/UpgradeLexer.l
Reid Spencer 97cae19c07 Implement upgrade of setcc instruction to icmp/fcmp, but don't enable it 
yet.

llvm-svn: 32139
2006-12-02 22:09:27 +00:00

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/*===-- UpgradeLexer.l - Scanner for 1.9 assembly files --------*- C++ -*--===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by Reid Spencer and is distributed under the
// University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements the flex scanner for LLVM 1.9 assembly languages files.
//
//===----------------------------------------------------------------------===*/
%option prefix="Upgrade"
%option yylineno
%option nostdinit
%option never-interactive
%option batch
%option noyywrap
%option nodefault
%option 8bit
%option outfile="UpgradeLexer.cpp"
%option ecs
%option noreject
%option noyymore
%{
#include "ParserInternals.h"
#include "UpgradeParser.h"
#include <cctype>
#include <cstdlib>
#define YY_INPUT(buf,result,max_size) \
{ \
if (LexInput->good() && !LexInput->eof()) { \
LexInput->read(buf,max_size); \
result = LexInput->gcount(); \
} else {\
result = YY_NULL; \
} \
}
// Construct a token value for a non-obsolete token
#define RET_TOK(sym) \
Upgradelval.String = new std::string(yytext); \
return sym
#define RET_TY(sym,OldTY,NewTY,sign) \
Upgradelval.Type.newTy = new std::string(NewTY); \
Upgradelval.Type.oldTy = OldTY; \
Upgradelval.Type.elemTy = VoidTy; \
return sym
#define YY_NEVER_INTERACTIVE 1
%}
/* Comments start with a ; and go till end of line */
Comment ;.*
/* Variable(Value) identifiers start with a % sign */
VarID %[-a-zA-Z$._][-a-zA-Z$._0-9]*
/* Label identifiers end with a colon */
Label [-a-zA-Z$._0-9]+:
QuoteLabel \"[^\"]+\":
/* Quoted names can contain any character except " and \ */
StringConstant \"[^\"]*\"
/* [PN]Integer: match positive and negative literal integer values that
* are preceeded by a '%' character. These represent unnamed variable slots.
*/
EPInteger %[0-9]+
ENInteger %-[0-9]+
/* E[PN]Integer: match positive and negative literal integer values */
PInteger [0-9]+
NInteger -[0-9]+
/* FPConstant - A Floating point constant.
*/
FPConstant [-+]?[0-9]+[.][0-9]*([eE][-+]?[0-9]+)?
/* HexFPConstant - Floating point constant represented in IEEE format as a
* hexadecimal number for when exponential notation is not precise enough.
*/
HexFPConstant 0x[0-9A-Fa-f]+
/* HexIntConstant - Hexadecimal constant generated by the CFE to avoid forcing
* it to deal with 64 bit numbers.
*/
HexIntConstant [us]0x[0-9A-Fa-f]+
%%
{Comment} { /* Ignore comments for now */ }
begin { RET_TOK( BEGINTOK); }
end { RET_TOK( ENDTOK); }
true { RET_TOK( TRUETOK); }
false { RET_TOK( FALSETOK); }
declare { RET_TOK( DECLARE); }
global { RET_TOK( GLOBAL); }
constant { RET_TOK( CONSTANT); }
internal { RET_TOK( INTERNAL); }
linkonce { RET_TOK( LINKONCE); }
weak { RET_TOK( WEAK); }
appending { RET_TOK( APPENDING); }
dllimport { RET_TOK( DLLIMPORT); }
dllexport { RET_TOK( DLLEXPORT); }
extern_weak { RET_TOK( EXTERN_WEAK); }
external { RET_TOK( EXTERNAL); }
uninitialized { RET_TOK( UNINITIALIZED); } // alias for external
implementation { RET_TOK( IMPLEMENTATION); }
zeroinitializer { RET_TOK( ZEROINITIALIZER); }
\.\.\. { RET_TOK( DOTDOTDOT); }
undef { RET_TOK( UNDEF); }
null { RET_TOK( NULL_TOK); }
to { RET_TOK( TO); }
tail { RET_TOK( TAIL); }
target { RET_TOK( TARGET); }
triple { RET_TOK( TRIPLE); }
deplibs { RET_TOK( DEPLIBS); }
endian { RET_TOK( ENDIAN); }
pointersize { RET_TOK( POINTERSIZE); }
datalayout { RET_TOK( DATALAYOUT); }
little { RET_TOK( LITTLE); }
big { RET_TOK( BIG); }
volatile { RET_TOK( VOLATILE); }
align { RET_TOK( ALIGN); }
section { RET_TOK( SECTION); }
module { RET_TOK( MODULE); }
asm { RET_TOK( ASM_TOK); }
sideeffect { RET_TOK( SIDEEFFECT); }
cc { RET_TOK( CC_TOK); }
ccc { RET_TOK( CCC_TOK); }
csretcc { RET_TOK( CSRETCC_TOK); }
fastcc { RET_TOK( FASTCC_TOK); }
coldcc { RET_TOK( COLDCC_TOK); }
x86_stdcallcc { RET_TOK( X86_STDCALLCC_TOK); }
x86_fastcallcc { RET_TOK( X86_FASTCALLCC_TOK); }
void { RET_TY(VOID,VoidTy,"void",false); }
bool { RET_TY(BOOL,BoolTy,"bool",false); }
sbyte { RET_TY(SBYTE,SByteTy,"sbyte",true); }
ubyte { RET_TY(UBYTE,UByteTy,"ubyte",false); }
short { RET_TY(SHORT,ShortTy,"short",true); }
ushort { RET_TY(USHORT,UShortTy,"ushort",false); }
int { RET_TY(INT,IntTy,"int",true); }
uint { RET_TY(UINT,UIntTy,"uint",false); }
long { RET_TY(LONG,LongTy,"long",true); }
ulong { RET_TY(ULONG,ULongTy,"ulong",false); }
float { RET_TY(FLOAT,FloatTy,"float",false); }
double { RET_TY(DOUBLE,DoubleTy,"double",false); }
label { RET_TY(LABEL,LabelTy,"label",false); }
opaque { RET_TOK(OPAQUE); }
type { RET_TOK(TYPE); }
add { RET_TOK( ADD); }
sub { RET_TOK( SUB); }
mul { RET_TOK( MUL); }
div { RET_TOK( DIV); }
udiv { RET_TOK( UDIV); }
sdiv { RET_TOK( SDIV); }
fdiv { RET_TOK( FDIV); }
rem { RET_TOK( REM); }
urem { RET_TOK( UREM); }
srem { RET_TOK( SREM); }
frem { RET_TOK( FREM); }
and { RET_TOK( AND); }
or { RET_TOK( OR); }
xor { RET_TOK( XOR); }
setne { RET_TOK( SETNE); }
seteq { RET_TOK( SETEQ); }
setlt { RET_TOK( SETLT); }
setgt { RET_TOK( SETGT); }
setle { RET_TOK( SETLE); }
setge { RET_TOK( SETGE); }
icmp { RET_TOK(ICMP); }
fcmp { RET_TOK(FCMP); }
eq { RET_TOK(EQ); }
ne { RET_TOK(NE); }
slt { RET_TOK(SLT); }
sgt { RET_TOK(SGT); }
sle { RET_TOK(SLE); }
sge { RET_TOK(SGE); }
oeq { RET_TOK(OEQ); }
one { RET_TOK(ONE); }
olt { RET_TOK(OLT); }
ogt { RET_TOK(OGT); }
ole { RET_TOK(OLE); }
oge { RET_TOK(OGE); }
ord { RET_TOK(ORD); }
uno { RET_TOK(UNO); }
ueq { RET_TOK(UEQ); }
une { RET_TOK(UNE); }
ult { RET_TOK(ULT); }
ugt { RET_TOK(UGT); }
ule { RET_TOK(ULE); }
uge { RET_TOK(UGE); }
phi { RET_TOK( PHI_TOK); }
call { RET_TOK( CALL); }
cast { RET_TOK( CAST); }
trunc { RET_TOK( TRUNC); }
zext { RET_TOK( ZEXT); }
sext { RET_TOK( SEXT); }
fptrunc { RET_TOK( FPTRUNC); }
fpext { RET_TOK( FPEXT); }
fptoui { RET_TOK( FPTOUI); }
fptosi { RET_TOK( FPTOSI); }
uitofp { RET_TOK( UITOFP); }
sitofp { RET_TOK( SITOFP); }
ptrtoint { RET_TOK( PTRTOINT); }
inttoptr { RET_TOK( INTTOPTR); }
bitcast { RET_TOK( BITCAST); }
select { RET_TOK( SELECT); }
shl { RET_TOK( SHL); }
shr { RET_TOK( SHR); }
ashr { RET_TOK( ASHR); }
lshr { RET_TOK( LSHR); }
va_arg { RET_TOK( VAARG); }
ret { RET_TOK( RET); }
br { RET_TOK( BR); }
switch { RET_TOK( SWITCH); }
invoke { RET_TOK( INVOKE); }
unwind { RET_TOK( UNWIND); }
except { RET_TOK( EXCEPT); } // alias for unwind
unreachable { RET_TOK( UNREACHABLE); }
malloc { RET_TOK( MALLOC); }
alloca { RET_TOK( ALLOCA); }
free { RET_TOK( FREE); }
load { RET_TOK( LOAD); }
store { RET_TOK( STORE); }
getelementptr { RET_TOK( GETELEMENTPTR); }
extractelement { RET_TOK( EXTRACTELEMENT); }
insertelement { RET_TOK( INSERTELEMENT); }
shufflevector { RET_TOK( SHUFFLEVECTOR); }
{VarID} { RET_TOK( VAR_ID); }
{Label} { RET_TOK( LABELSTR); }
{QuoteLabel} { RET_TOK( LABELSTR); }
{StringConstant} { RET_TOK( STRINGCONSTANT ); }
{PInteger} { RET_TOK( EUINT64VAL ); }
{NInteger} { RET_TOK( ESINT64VAL ); }
{HexIntConstant} { RET_TOK( yytext[0] == 's' ? ESINT64VAL : EUINT64VAL ); }
{EPInteger} { RET_TOK( UINTVAL); }
{ENInteger} { RET_TOK( SINTVAL); }
{FPConstant} { RET_TOK( FPVAL); }
{HexFPConstant} { RET_TOK( FPVAL); }
<<EOF>> {
/* Make sure to free the internal buffers for flex when we are
* done reading our input!
*/
yy_delete_buffer(YY_CURRENT_BUFFER);
return EOF;
}
[ \r\t\n] { /* Ignore whitespace */ }
. { return yytext[0]; }
%%
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