mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-09-12 05:56:25 +00:00
ca9c42c4da
parses the .word directive as 4 bytes and ARMAsmParser::ParseInstruction will give an error is called. Broke out the test of the .word directive into two different test cases, one for x86 and one for arm. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81817 91177308-0d34-0410-b5e6-96231b3b80d8
94 lines
2.6 KiB
C++
94 lines
2.6 KiB
C++
//===-- ARMAsmParser.cpp - Parse ARM assembly to MCInst instructions ------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "ARM.h"
|
|
#include "llvm/ADT/SmallVector.h"
|
|
#include "llvm/ADT/Twine.h"
|
|
#include "llvm/MC/MCAsmLexer.h"
|
|
#include "llvm/MC/MCAsmParser.h"
|
|
#include "llvm/MC/MCStreamer.h"
|
|
#include "llvm/MC/MCExpr.h"
|
|
#include "llvm/MC/MCInst.h"
|
|
#include "llvm/Support/SourceMgr.h"
|
|
#include "llvm/Target/TargetRegistry.h"
|
|
#include "llvm/Target/TargetAsmParser.h"
|
|
using namespace llvm;
|
|
|
|
namespace {
|
|
struct ARMOperand;
|
|
|
|
class ARMAsmParser : public TargetAsmParser {
|
|
MCAsmParser &Parser;
|
|
|
|
private:
|
|
MCAsmParser &getParser() const { return Parser; }
|
|
|
|
MCAsmLexer &getLexer() const { return Parser.getLexer(); }
|
|
|
|
void Warning(SMLoc L, const Twine &Msg) { Parser.Warning(L, Msg); }
|
|
|
|
bool Error(SMLoc L, const Twine &Msg) { return Parser.Error(L, Msg); }
|
|
|
|
bool ParseDirectiveWord(unsigned Size, SMLoc L);
|
|
|
|
public:
|
|
ARMAsmParser(const Target &T, MCAsmParser &_Parser)
|
|
: TargetAsmParser(T), Parser(_Parser) {}
|
|
|
|
virtual bool ParseInstruction(const StringRef &Name, MCInst &Inst);
|
|
|
|
virtual bool ParseDirective(AsmToken DirectiveID);
|
|
};
|
|
|
|
} // end anonymous namespace
|
|
|
|
bool ARMAsmParser::ParseInstruction(const StringRef &Name, MCInst &Inst) {
|
|
SMLoc Loc = getLexer().getTok().getLoc();
|
|
Error(Loc, "ARMAsmParser::ParseInstruction currently unimplemented");
|
|
return true;
|
|
}
|
|
|
|
bool ARMAsmParser::ParseDirective(AsmToken DirectiveID) {
|
|
StringRef IDVal = DirectiveID.getIdentifier();
|
|
if (IDVal == ".word")
|
|
return ParseDirectiveWord(4, DirectiveID.getLoc());
|
|
return true;
|
|
}
|
|
|
|
/// ParseDirectiveWord
|
|
/// ::= .word [ expression (, expression)* ]
|
|
bool ARMAsmParser::ParseDirectiveWord(unsigned Size, SMLoc L) {
|
|
if (getLexer().isNot(AsmToken::EndOfStatement)) {
|
|
for (;;) {
|
|
const MCExpr *Value;
|
|
if (getParser().ParseExpression(Value))
|
|
return true;
|
|
|
|
getParser().getStreamer().EmitValue(Value, Size);
|
|
|
|
if (getLexer().is(AsmToken::EndOfStatement))
|
|
break;
|
|
|
|
// FIXME: Improve diagnostic.
|
|
if (getLexer().isNot(AsmToken::Comma))
|
|
return Error(L, "unexpected token in directive");
|
|
getLexer().Lex();
|
|
}
|
|
}
|
|
|
|
getLexer().Lex();
|
|
return false;
|
|
}
|
|
|
|
// Force static initialization.
|
|
extern "C" void LLVMInitializeARMAsmParser() {
|
|
RegisterAsmParser<ARMAsmParser> X(TheARMTarget);
|
|
RegisterAsmParser<ARMAsmParser> Y(TheThumbTarget);
|
|
}
|