mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-22 07:32:48 +00:00
2b8036e2c8
Revise the upgrade parser to keep track of types more faithfully and use
this information to resolve name conflicts resulting from collapsed type
planes. The type planes have collapsed because the integer types are now
signless so that uint and int became i32. Where two planes existed for uint
and int, only i32 exists. Any variable names depending on the type planes
to pmake the identifier unique would cause a conflict. This patch resolves
that conflict for many but not all cases.
Situations involving the integer types and pointers to them are handled
by this patch. However, there are corner cases that are not handled
well, such as:
%t1 = type { uint, int }
%t2 = type { int, uint }
void %myfunc(%t1* one, %t2* two) {
%var = load %t1* one
%var = load %t2* two
}
In the scenario above, %t1 and %t2 are really the same type: { i32, i32 }
Consequently attempting to name %var twice will yield a redefinition error
when assembled.
While this patch is sufficien to allow the llvm/test suite to pass, More
work needs to be to complete the handling of these corner cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32810 91177308-0d34-0410-b5e6-96231b3b80d8
274 lines
8.9 KiB
C++
274 lines
8.9 KiB
C++
/*===-- UpgradeLexer.l - Scanner for 1.9 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 Reid Spencer and is distributed under the
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// 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 1.9 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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#include "UpgradeParser.h"
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#include <cctype>
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#include <cstdlib>
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#define YY_INPUT(buf,result,max_size) \
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{ \
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if (LexInput->good() && !LexInput->eof()) { \
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LexInput->read(buf,max_size); \
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result = LexInput->gcount(); \
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} else {\
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result = YY_NULL; \
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} \
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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.String = new std::string(yytext); \
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return sym
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#define RET_TY(sym,OldTY,NewTY,sign) \
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Upgradelval.Type = new TypeInfo(NewTY, OldTY); \
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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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uninitialized { RET_TOK( UNINITIALIZED); } // alias for 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_TY(VOID,VoidTy,"void",false); }
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bool { RET_TY(BOOL,BoolTy,"bool",false); }
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sbyte { RET_TY(SBYTE,SByteTy,"i8",true); }
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ubyte { RET_TY(UBYTE,UByteTy,"i8",false); }
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short { RET_TY(SHORT,ShortTy,"i16",true); }
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ushort { RET_TY(USHORT,UShortTy,"i16",false); }
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int { RET_TY(INT,IntTy,"i32",true); }
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uint { RET_TY(UINT,UIntTy,"i32",false); }
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long { RET_TY(LONG,LongTy,"i64",true); }
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ulong { RET_TY(ULONG,ULongTy,"i64",false); }
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i8 { RET_TY(UBYTE,UByteTy,"i8",false); }
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i16 { RET_TY(USHORT,UShortTy,"i16",false); }
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i32 { RET_TY(UINT,UIntTy,"i32",false); }
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i64 { RET_TY(ULONG,ULongTy,"i64",false); }
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float { RET_TY(FLOAT,FloatTy,"float",false); }
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double { RET_TY(DOUBLE,DoubleTy,"double",false); }
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label { RET_TY(LABEL,LabelTy,"label",false); }
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opaque { RET_TOK(OPAQUE); }
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type { RET_TOK(TYPE); }
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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( DIV); }
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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( REM); }
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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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icmp { RET_TOK(ICMP); }
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fcmp { RET_TOK(FCMP); }
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eq { RET_TOK(EQ); }
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ne { RET_TOK(NE); }
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slt { RET_TOK(SLT); }
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sgt { RET_TOK(SGT); }
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sle { RET_TOK(SLE); }
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sge { RET_TOK(SGE); }
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oeq { RET_TOK(OEQ); }
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one { RET_TOK(ONE); }
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olt { RET_TOK(OLT); }
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ogt { RET_TOK(OGT); }
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ole { RET_TOK(OLE); }
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oge { RET_TOK(OGE); }
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ord { RET_TOK(ORD); }
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uno { RET_TOK(UNO); }
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ueq { RET_TOK(UEQ); }
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une { RET_TOK(UNE); }
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ult { RET_TOK(ULT); }
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ugt { RET_TOK(UGT); }
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ule { RET_TOK(ULE); }
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uge { RET_TOK(UGE); }
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phi { RET_TOK( PHI_TOK); }
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call { RET_TOK( CALL); }
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cast { RET_TOK( CAST); }
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trunc { RET_TOK( TRUNC); }
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zext { RET_TOK( ZEXT); }
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sext { RET_TOK( SEXT); }
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fptrunc { RET_TOK( FPTRUNC); }
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fpext { RET_TOK( FPEXT); }
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fptoui { RET_TOK( FPTOUI); }
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fptosi { RET_TOK( FPTOSI); }
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uitofp { RET_TOK( UITOFP); }
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sitofp { RET_TOK( SITOFP); }
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ptrtoint { RET_TOK( PTRTOINT); }
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inttoptr { RET_TOK( INTTOPTR); }
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bitcast { RET_TOK( BITCAST); }
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select { RET_TOK( SELECT); }
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shl { RET_TOK( SHL); }
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shr { RET_TOK( SHR); }
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ashr { RET_TOK( ASHR); }
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lshr { RET_TOK( LSHR); }
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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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except { RET_TOK( EXCEPT); } // alias for 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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