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Add MCAsmParser interface.
- This provides the AsmParser interface to the target specific assembly parsers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76453 91177308-0d34-0410-b5e6-96231b3b80d8
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include/llvm/MC/MCAsmParser.h
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33
include/llvm/MC/MCAsmParser.h
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@ -0,0 +1,33 @@
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//===-- llvm/MC/MCAsmParser.h - Abstract Asm Parser Interface ---*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_MC_MCASMPARSER_H
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#define LLVM_MC_MCASMPARSER_H
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namespace llvm {
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class MCAsmParser;
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class MCInst;
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class Target;
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class TargetAsmParser;
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/// MCAsmParser - Generic assembler parser interface, for use by target specific
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/// assembly parsers.
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class MCAsmParser {
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MCAsmParser(const MCAsmParser &); // DO NOT IMPLEMENT
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void operator=(const MCAsmParser &); // DO NOT IMPLEMENT
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protected: // Can only create subclasses.
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MCAsmParser();
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public:
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virtual ~MCAsmParser();
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};
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} // End llvm namespace
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#endif
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@ -11,6 +11,8 @@
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#define LLVM_TARGET_TARGETPARSER_H
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namespace llvm {
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class MCAsmParser;
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class MCInst;
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class Target;
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/// TargetAsmParser - Generic interface to target specific assembly parsers.
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@ -27,6 +29,21 @@ public:
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virtual ~TargetAsmParser();
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const Target &getTarget() const { return TheTarget; }
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/// ParseInstruction - Parse one assembly instruction.
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///
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/// The parser is positioned following the instruction name. The target
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/// specific instruction parser should parse the entire instruction and
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/// construct the appropriate MCInst, or emit an error. On success, the entire
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/// line should be parsed up to and including the end-of-statement token. On
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/// failure, the parser is not required to read to the end of the line.
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//
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/// \param AP - The current parser object.
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/// \param Name - The instruction name.
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/// \param Inst [out] - On success, the parsed instruction.
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/// \return True on failure.
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virtual bool ParseInstruction(MCAsmParser &AP, const char *Name,
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MCInst &Inst) = 0;
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};
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} // End llvm namespace
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@ -1,4 +1,5 @@
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add_llvm_library(LLVMMC
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MCAsmParser.cpp
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MCAsmStreamer.cpp
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MCContext.cpp
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MCStreamer.cpp
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18
lib/MC/MCAsmParser.cpp
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18
lib/MC/MCAsmParser.cpp
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//===-- MCAsmParser.cpp - Abstract Asm Parser Interface -------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/MC/MCAsmParser.h"
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using namespace llvm;
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MCAsmParser::MCAsmParser() {
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}
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MCAsmParser::~MCAsmParser() {
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}
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@ -8,6 +8,7 @@
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//===----------------------------------------------------------------------===//
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#include "X86.h"
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#include "llvm/MC/MCAsmParser.h"
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#include "llvm/Target/TargetRegistry.h"
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#include "llvm/Target/TargetAsmParser.h"
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using namespace llvm;
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@ -17,6 +18,9 @@ namespace {
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class X86ATTAsmParser : public TargetAsmParser {
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public:
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explicit X86ATTAsmParser(const Target &);
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virtual bool ParseInstruction(MCAsmParser &AP, const char *Name,
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MCInst &Inst);
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};
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}
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@ -26,6 +30,11 @@ X86ATTAsmParser::X86ATTAsmParser(const Target &T)
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{
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}
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bool X86ATTAsmParser::ParseInstruction(MCAsmParser &AP, const char *Name,
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MCInst &Inst) {
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return true;
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}
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namespace {
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TargetAsmParser *createAsmParser(const Target &T) {
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return new X86ATTAsmParser(T);
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@ -20,6 +20,7 @@
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#include "llvm/MC/MCSymbol.h"
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#include "llvm/Support/SourceMgr.h"
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#include "llvm/Support/raw_ostream.h"
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#include "llvm/Target/TargetAsmParser.h"
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using namespace llvm;
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void AsmParser::Warning(SMLoc L, const char *Msg) {
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@ -548,7 +549,8 @@ bool AsmParser::ParseStatement() {
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}
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MCInst Inst;
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if (ParseX86InstOperands(IDVal, Inst))
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if (ParseX86InstOperands(IDVal, Inst) &&
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getTargetParser().ParseInstruction(*this, IDVal, Inst))
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return true;
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if (Lexer.isNot(asmtok::EndOfStatement))
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@ -15,6 +15,7 @@
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#define ASMPARSER_H
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#include "AsmLexer.h"
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#include "llvm/MC/MCAsmParser.h"
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#include "llvm/MC/MCStreamer.h"
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namespace llvm {
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@ -24,7 +25,7 @@ class MCInst;
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class MCStreamer;
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class MCValue;
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class AsmParser {
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class AsmParser : MCAsmParser {
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public:
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struct X86Operand;
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@ -32,14 +33,19 @@ private:
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AsmLexer Lexer;
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MCContext &Ctx;
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MCStreamer &Out;
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TargetAsmParser &TargetParser;
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public:
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AsmParser(SourceMgr &SM, MCContext &ctx, MCStreamer &OutStr)
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: Lexer(SM), Ctx(ctx), Out(OutStr) {}
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AsmParser(SourceMgr &_SM, MCContext &_Ctx, MCStreamer &_Out,
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TargetAsmParser &_TargetParser)
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: Lexer(_SM), Ctx(_Ctx), Out(_Out), TargetParser(_TargetParser) {}
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~AsmParser() {}
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bool Run();
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public:
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TargetAsmParser &getTargetParser() const { return TargetParser; }
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private:
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bool ParseStatement();
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@ -186,9 +186,10 @@ static int AssembleInput(const char *ProgName) {
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OwningPtr<MCStreamer> Str(createAsmStreamer(Ctx, outs()));
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// FIXME: Target hook & command line option for initial section.
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Str.get()->SwitchSection(Ctx.GetSection("__TEXT,__text,regular,pure_instructions"));
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Str.get()->SwitchSection(Ctx.GetSection("__TEXT,__text,"
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"regular,pure_instructions"));
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AsmParser Parser(SrcMgr, Ctx, *Str.get());
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AsmParser Parser(SrcMgr, Ctx, *Str.get(), *TAP);
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return Parser.Run();
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}
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