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/*===-- Lexer.l - Scanner for llvm assembly files --------------*- C++ -*--===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by the LLVM research group and is distributed under
// the University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements the flex scanner for LLVM 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"
#define YYSTYPE std::string*
#include "UpgradeParser.h"
#include <cctype>
#include <cstdlib>
void set_scan_bytes (const char * str, size_t len) {
Upgrade_scan_bytes (str, len);
}
static void trim(std::string& str) {
size_t startpos = str.find_first_not_of(" \t\n\r",0);
if (startpos != std::string::npos)
str.erase(0,startpos);
}
// Construct a token value for a non-obsolete token
#define RET_TOK(sym) \
Upgradelval = new std::string(yytext); \
trim(*Upgradelval); \
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); }
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_TOK( VOID); }
bool { RET_TOK( BOOL); }
sbyte { RET_TOK( SBYTE); }
ubyte { RET_TOK( UBYTE); }
short { RET_TOK( SHORT); }
ushort { RET_TOK( USHORT); }
int { RET_TOK( INT); }
uint { RET_TOK( UINT); }
long { RET_TOK( LONG); }
ulong { RET_TOK( ULONG); }
float { RET_TOK( FLOAT); }
double { RET_TOK( DOUBLE); }
label { RET_TOK( LABEL); }
type { RET_TOK( TYPE); }
opaque { RET_TOK( OPAQUE); }
add { RET_TOK( ADD); }
sub { RET_TOK( SUB); }
mul { RET_TOK( MUL); }
div { RET_TOK( UDIV); }
udiv { RET_TOK( UDIV); }
sdiv { RET_TOK( SDIV); }
fdiv { RET_TOK( FDIV); }
rem { RET_TOK( UREM); }
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); }
phi { RET_TOK( PHI_TOK); }
call { RET_TOK( CALL); }
cast { RET_TOK( TRUNC); }
select { RET_TOK( SELECT); }
shl { RET_TOK( SHL); }
lshr { RET_TOK( LSHR); }
ashr { RET_TOK( ASHR); }
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); }
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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