mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-11-02 22:04:55 +00:00
95ce4c2ffb
Attribute groups are of the form: #0 = attributes { noinline "no-sse" "cpu"="cortex-a8" alignstack=4 } Target-dependent attributes are represented as strings. Attributes can have optional values associated with them. E.g., the "cpu" attribute has the value "cortex-a8". Target-independent attributes are listed as enums inside the attribute classes. Multiple attribute groups can be referenced by the same object. In that case, the attributes are merged together. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174493 91177308-0d34-0410-b5e6-96231b3b80d8
94 lines
2.6 KiB
C++
94 lines
2.6 KiB
C++
//===- LLLexer.h - Lexer for LLVM Assembly Files ----------------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This class represents the Lexer for .ll files.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LIB_ASMPARSER_LLLEXER_H
|
|
#define LIB_ASMPARSER_LLLEXER_H
|
|
|
|
#include "LLToken.h"
|
|
#include "llvm/ADT/APFloat.h"
|
|
#include "llvm/ADT/APSInt.h"
|
|
#include "llvm/Support/SourceMgr.h"
|
|
#include <string>
|
|
|
|
namespace llvm {
|
|
class MemoryBuffer;
|
|
class Type;
|
|
class SMDiagnostic;
|
|
class LLVMContext;
|
|
|
|
class LLLexer {
|
|
const char *CurPtr;
|
|
MemoryBuffer *CurBuf;
|
|
SMDiagnostic &ErrorInfo;
|
|
SourceMgr &SM;
|
|
LLVMContext &Context;
|
|
|
|
// Information about the current token.
|
|
const char *TokStart;
|
|
lltok::Kind CurKind;
|
|
std::string StrVal;
|
|
unsigned UIntVal;
|
|
Type *TyVal;
|
|
APFloat APFloatVal;
|
|
APSInt APSIntVal;
|
|
|
|
public:
|
|
explicit LLLexer(MemoryBuffer *StartBuf, SourceMgr &SM, SMDiagnostic &,
|
|
LLVMContext &C);
|
|
~LLLexer() {}
|
|
|
|
lltok::Kind Lex() {
|
|
return CurKind = LexToken();
|
|
}
|
|
|
|
typedef SMLoc LocTy;
|
|
LocTy getLoc() const { return SMLoc::getFromPointer(TokStart); }
|
|
lltok::Kind getKind() const { return CurKind; }
|
|
const std::string &getStrVal() const { return StrVal; }
|
|
Type *getTyVal() const { return TyVal; }
|
|
unsigned getUIntVal() const { return UIntVal; }
|
|
const APSInt &getAPSIntVal() const { return APSIntVal; }
|
|
const APFloat &getAPFloatVal() const { return APFloatVal; }
|
|
|
|
|
|
bool Error(LocTy L, const Twine &Msg) const;
|
|
bool Error(const Twine &Msg) const { return Error(getLoc(), Msg); }
|
|
std::string getFilename() const;
|
|
|
|
private:
|
|
lltok::Kind LexToken();
|
|
|
|
int getNextChar();
|
|
void SkipLineComment();
|
|
lltok::Kind ReadString(lltok::Kind kind);
|
|
bool ReadVarName();
|
|
|
|
lltok::Kind LexIdentifier();
|
|
lltok::Kind LexDigitOrNegative();
|
|
lltok::Kind LexPositive();
|
|
lltok::Kind LexAt();
|
|
lltok::Kind LexExclaim();
|
|
lltok::Kind LexPercent();
|
|
lltok::Kind LexQuote();
|
|
lltok::Kind Lex0x();
|
|
lltok::Kind LexHash();
|
|
|
|
uint64_t atoull(const char *Buffer, const char *End);
|
|
uint64_t HexIntToVal(const char *Buffer, const char *End);
|
|
void HexToIntPair(const char *Buffer, const char *End, uint64_t Pair[2]);
|
|
void FP80HexToIntPair(const char *Buff, const char *End, uint64_t Pair[2]);
|
|
};
|
|
} // end namespace llvm
|
|
|
|
#endif
|