mirror of
https://github.com/c64scene-ar/llvm-6502.git
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Initial, non-functional, version of llvm-upgrade. This version just echos
its input. Committed for safekeeping purposes. Don't use this yet. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32030 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer
229
tools/llvm-upgrade/UpgradeLexer.l.cvs
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229
tools/llvm-upgrade/UpgradeLexer.l.cvs
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@@ -0,0 +1,229 @@
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/*===-- Lexer.l - Scanner for llvm assembly files --------------*- C++ -*--===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by the LLVM research group and is distributed under
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// the University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the flex scanner for LLVM assembly languages files.
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//
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//===----------------------------------------------------------------------===*/
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%option prefix="Upgrade"
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%option yylineno
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%option nostdinit
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%option never-interactive
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%option batch
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%option noyywrap
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%option nodefault
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%option 8bit
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%option outfile="UpgradeLexer.cpp"
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%option ecs
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%option noreject
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%option noyymore
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%{
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#include "ParserInternals.h"
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#define YYSTYPE std::string*
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#include "UpgradeParser.h"
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#include <cctype>
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#include <cstdlib>
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void set_scan_bytes (const char * str, size_t len) {
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Upgrade_scan_bytes (str, len);
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}
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static void trim(std::string& str) {
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size_t startpos = str.find_first_not_of(" \t\n\r",0);
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if (startpos != std::string::npos)
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str.erase(0,startpos);
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}
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// Construct a token value for a non-obsolete token
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#define RET_TOK(sym) \
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Upgradelval = new std::string(yytext); \
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trim(*Upgradelval); \
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return sym
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#define YY_NEVER_INTERACTIVE 1
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%}
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/* Comments start with a ; and go till end of line */
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Comment ;.*
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/* Variable(Value) identifiers start with a % sign */
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VarID %[-a-zA-Z$._][-a-zA-Z$._0-9]*
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/* Label identifiers end with a colon */
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Label [-a-zA-Z$._0-9]+:
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QuoteLabel \"[^\"]+\":
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/* Quoted names can contain any character except " and \ */
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StringConstant \"[^\"]*\"
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/* [PN]Integer: match positive and negative literal integer values that
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* are preceeded by a '%' character. These represent unnamed variable slots.
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*/
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EPInteger %[0-9]+
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ENInteger %-[0-9]+
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/* E[PN]Integer: match positive and negative literal integer values */
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PInteger [0-9]+
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NInteger -[0-9]+
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/* FPConstant - A Floating point constant.
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*/
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FPConstant [-+]?[0-9]+[.][0-9]*([eE][-+]?[0-9]+)?
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/* HexFPConstant - Floating point constant represented in IEEE format as a
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* hexadecimal number for when exponential notation is not precise enough.
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*/
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HexFPConstant 0x[0-9A-Fa-f]+
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/* HexIntConstant - Hexadecimal constant generated by the CFE to avoid forcing
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* it to deal with 64 bit numbers.
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*/
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HexIntConstant [us]0x[0-9A-Fa-f]+
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%%
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{Comment} { /* Ignore comments for now */ }
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begin { RET_TOK( BEGINTOK); }
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end { RET_TOK( ENDTOK); }
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true { RET_TOK( TRUETOK); }
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false { RET_TOK( FALSETOK); }
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declare { RET_TOK( DECLARE); }
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global { RET_TOK( GLOBAL); }
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constant { RET_TOK( CONSTANT); }
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internal { RET_TOK( INTERNAL); }
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linkonce { RET_TOK( LINKONCE); }
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weak { RET_TOK( WEAK); }
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appending { RET_TOK( APPENDING); }
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dllimport { RET_TOK( DLLIMPORT); }
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dllexport { RET_TOK( DLLEXPORT); }
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extern_weak { RET_TOK( EXTERN_WEAK); }
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external { RET_TOK( EXTERNAL); }
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implementation { RET_TOK( IMPLEMENTATION); }
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zeroinitializer { RET_TOK( ZEROINITIALIZER); }
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\.\.\. { RET_TOK( DOTDOTDOT); }
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undef { RET_TOK( UNDEF); }
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null { RET_TOK( NULL_TOK); }
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to { RET_TOK( TO); }
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tail { RET_TOK( TAIL); }
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target { RET_TOK( TARGET); }
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triple { RET_TOK( TRIPLE); }
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deplibs { RET_TOK( DEPLIBS); }
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endian { RET_TOK( ENDIAN); }
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pointersize { RET_TOK( POINTERSIZE); }
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datalayout { RET_TOK( DATALAYOUT); }
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little { RET_TOK( LITTLE); }
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big { RET_TOK( BIG); }
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volatile { RET_TOK( VOLATILE); }
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align { RET_TOK( ALIGN); }
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section { RET_TOK( SECTION); }
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module { RET_TOK( MODULE); }
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asm { RET_TOK( ASM_TOK); }
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sideeffect { RET_TOK( SIDEEFFECT); }
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cc { RET_TOK( CC_TOK); }
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ccc { RET_TOK( CCC_TOK); }
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csretcc { RET_TOK( CSRETCC_TOK); }
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fastcc { RET_TOK( FASTCC_TOK); }
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coldcc { RET_TOK( COLDCC_TOK); }
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x86_stdcallcc { RET_TOK( X86_STDCALLCC_TOK); }
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x86_fastcallcc { RET_TOK( X86_FASTCALLCC_TOK); }
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void { RET_TOK( VOID); }
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bool { RET_TOK( BOOL); }
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sbyte { RET_TOK( SBYTE); }
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ubyte { RET_TOK( UBYTE); }
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short { RET_TOK( SHORT); }
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ushort { RET_TOK( USHORT); }
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int { RET_TOK( INT); }
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uint { RET_TOK( UINT); }
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long { RET_TOK( LONG); }
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ulong { RET_TOK( ULONG); }
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float { RET_TOK( FLOAT); }
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double { RET_TOK( DOUBLE); }
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label { RET_TOK( LABEL); }
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type { RET_TOK( TYPE); }
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opaque { RET_TOK( OPAQUE); }
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add { RET_TOK( ADD); }
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sub { RET_TOK( SUB); }
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mul { RET_TOK( MUL); }
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div { RET_TOK( UDIV); }
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udiv { RET_TOK( UDIV); }
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sdiv { RET_TOK( SDIV); }
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fdiv { RET_TOK( FDIV); }
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rem { RET_TOK( UREM); }
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urem { RET_TOK( UREM); }
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srem { RET_TOK( SREM); }
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frem { RET_TOK( FREM); }
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and { RET_TOK( AND); }
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or { RET_TOK( OR); }
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xor { RET_TOK( XOR); }
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setne { RET_TOK( SETNE); }
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seteq { RET_TOK( SETEQ); }
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setlt { RET_TOK( SETLT); }
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setgt { RET_TOK( SETGT); }
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setle { RET_TOK( SETLE); }
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setge { RET_TOK( SETGE); }
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phi { RET_TOK( PHI_TOK); }
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call { RET_TOK( CALL); }
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cast { RET_TOK( TRUNC); }
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select { RET_TOK( SELECT); }
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shl { RET_TOK( SHL); }
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lshr { RET_TOK( LSHR); }
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ashr { RET_TOK( ASHR); }
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va_arg { RET_TOK( VAARG); }
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ret { RET_TOK( RET); }
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br { RET_TOK( BR); }
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switch { RET_TOK( SWITCH); }
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invoke { RET_TOK( INVOKE); }
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unwind { RET_TOK( UNWIND); }
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unreachable { RET_TOK( UNREACHABLE); }
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malloc { RET_TOK( MALLOC); }
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alloca { RET_TOK( ALLOCA); }
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free { RET_TOK( FREE); }
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load { RET_TOK( LOAD); }
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store { RET_TOK( STORE); }
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getelementptr { RET_TOK( GETELEMENTPTR); }
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extractelement { RET_TOK( EXTRACTELEMENT); }
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insertelement { RET_TOK( INSERTELEMENT); }
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shufflevector { RET_TOK( SHUFFLEVECTOR); }
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{VarID} { RET_TOK( VAR_ID); }
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{Label} { RET_TOK( LABELSTR); }
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{QuoteLabel} { RET_TOK( LABELSTR); }
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{StringConstant} { RET_TOK( STRINGCONSTANT ); }
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{PInteger} { RET_TOK( EUINT64VAL ); }
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{NInteger} { RET_TOK( ESINT64VAL ); }
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{HexIntConstant} { RET_TOK( yytext[0] == 's' ? ESINT64VAL : EUINT64VAL ); }
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{EPInteger} { RET_TOK( UINTVAL); }
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{ENInteger} { RET_TOK( SINTVAL); }
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{FPConstant} { RET_TOK( FPVAL); }
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{HexFPConstant} { RET_TOK( FPVAL); }
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<<EOF>> {
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/* Make sure to free the internal buffers for flex when we are
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* done reading our input!
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*/
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yy_delete_buffer(YY_CURRENT_BUFFER);
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return EOF;
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}
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[ \r\t\n] { /* Ignore whitespace */ }
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. { return yytext[0]; }
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%%
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