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[Mips] MipsTargetStreamer refactoring.

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No functionality changes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195057 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jack Carter 2013-11-18 23:55:27 +00:00
parent 4adba52570
commit 4c1625b3cb
4 changed files with 92 additions and 64 deletions
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1
lib/Target/Mips/MCTargetDesc/CMakeLists.txt
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@ -5,6 +5,7 @@ add_llvm_library(LLVMMipsDesc
MipsMCTargetDesc.cpp
MipsELFObjectWriter.cpp
MipsReginfo.cpp
MipsTargetStreamer.cpp
)
add_dependencies(LLVMMipsDesc MipsCommonTableGen)

64
lib/Target/Mips/MCTargetDesc/MipsMCTargetDesc.cpp
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@ -39,9 +39,6 @@
using namespace llvm;
static cl::opt<bool> PrintHackDirectives("print-hack-directives",
cl::init(false), cl::Hidden);
static std::string ParseMipsTriple(StringRef TT, StringRef CPU) {
std::string MipsArchFeature;
size_t DashPosition = 0;
@ -131,67 +128,6 @@ static MCInstPrinter *createMipsMCInstPrinter(const Target &T,
return new MipsInstPrinter(MAI, MII, MRI);
}
namespace {
class MipsTargetAsmStreamer : public MipsTargetStreamer {
formatted_raw_ostream &OS;
public:
MipsTargetAsmStreamer(formatted_raw_ostream &OS);
virtual void emitMipsHackELFFlags(unsigned Flags);
virtual void emitMipsHackSTOCG(MCSymbol *Sym, unsigned Val);
};
MipsTargetAsmStreamer::MipsTargetAsmStreamer(formatted_raw_ostream &OS)
: OS(OS) {}
void MipsTargetAsmStreamer::emitMipsHackELFFlags(unsigned Flags) {
if (!PrintHackDirectives)
return;
OS << "\t.mips_hack_elf_flags 0x";
OS.write_hex(Flags);
OS << '\n';
}
void MipsTargetAsmStreamer::emitMipsHackSTOCG(MCSymbol *Sym, unsigned Val) {
if (!PrintHackDirectives)
return;
OS << "\t.mips_hack_stocg ";
OS << Sym->getName();
OS << ", ";
OS << Val;
OS << '\n';
}
class MipsTargetELFStreamer : public MipsTargetStreamer {
public:
MCELFStreamer &getStreamer();
MipsTargetELFStreamer();
virtual void emitMipsHackELFFlags(unsigned Flags);
virtual void emitMipsHackSTOCG(MCSymbol *Sym, unsigned Val);
};
MipsTargetELFStreamer::MipsTargetELFStreamer() {}
MCELFStreamer &MipsTargetELFStreamer::getStreamer() {
return static_cast<MCELFStreamer &>(*Streamer);
}
void MipsTargetELFStreamer::emitMipsHackELFFlags(unsigned Flags) {
MCAssembler &MCA = getStreamer().getAssembler();
MCA.setELFHeaderEFlags(Flags);
}
// Set a symbol's STO flags
void MipsTargetELFStreamer::emitMipsHackSTOCG(MCSymbol *Sym, unsigned Val) {
MCSymbolData &Data = getStreamer().getOrCreateSymbolData(Sym);
// The "other" values are stored in the last 6 bits of the second byte
// The traditional defines for STO values assume the full byte and thus
// the shift to pack it.
MCELF::setOther(Data, Val >> 2);
}
}
static MCStreamer *createMCStreamer(const Target &T, StringRef TT,
MCContext &Context, MCAsmBackend &MAB,
raw_ostream &OS, MCCodeEmitter *Emitter,

69
lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp Normal file
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@ -0,0 +1,69 @@
//===-- MipsTargetStreamer.cpp - Mips Target Streamer Methods -------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file provides Mips specific target streamer methods.
//
//===----------------------------------------------------------------------===//
#include "MipsTargetStreamer.h"
#include "llvm/MC/MCELF.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/FormattedStream.h"
using namespace llvm;
static cl::opt<bool> PrintHackDirectives("print-hack-directives",
cl::init(false), cl::Hidden);
// pin vtable to this file
void MipsTargetStreamer::anchor() {}
MipsTargetAsmStreamer::MipsTargetAsmStreamer(formatted_raw_ostream &OS)
: OS(OS) {}
void MipsTargetAsmStreamer::emitMipsHackELFFlags(unsigned Flags) {
if (!PrintHackDirectives)
return;
OS << "\t.mips_hack_elf_flags 0x";
OS.write_hex(Flags);
OS << '\n';
}
void MipsTargetAsmStreamer::emitMipsHackSTOCG(MCSymbol *Sym, unsigned Val) {
if (!PrintHackDirectives)
return;
OS << "\t.mips_hack_stocg ";
OS << Sym->getName();
OS << ", ";
OS << Val;
OS << '\n';
}
MipsTargetELFStreamer::MipsTargetELFStreamer() {}
MCELFStreamer &MipsTargetELFStreamer::getStreamer() {
return static_cast<MCELFStreamer &>(*Streamer);
}
void MipsTargetELFStreamer::emitMipsHackELFFlags(unsigned Flags) {
MCAssembler &MCA = getStreamer().getAssembler();
MCA.setELFHeaderEFlags(Flags);
}
// Set a symbol's STO flags
void MipsTargetELFStreamer::emitMipsHackSTOCG(MCSymbol *Sym, unsigned Val) {
MCSymbolData &Data = getStreamer().getOrCreateSymbolData(Sym);
// The "other" values are stored in the last 6 bits of the second byte
// The traditional defines for STO values assume the full byte and thus
// the shift to pack it.
MCELF::setOther(Data, Val >> 2);
}

22
lib/Target/Mips/MipsTargetStreamer.h
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@ -10,14 +10,36 @@
#ifndef MIPSTARGETSTREAMER_H
#define MIPSTARGETSTREAMER_H
#include "llvm/MC/MCELFStreamer.h"
#include "llvm/MC/MCStreamer.h"
namespace llvm {
class MipsTargetStreamer : public MCTargetStreamer {
virtual void anchor();
public:
virtual void emitMipsHackELFFlags(unsigned Flags) = 0;
virtual void emitMipsHackSTOCG(MCSymbol *Sym, unsigned Val) = 0;
};
// This part is for ascii assembly output
class MipsTargetAsmStreamer : public MipsTargetStreamer {
formatted_raw_ostream &OS;
public:
MipsTargetAsmStreamer(formatted_raw_ostream &OS);
virtual void emitMipsHackELFFlags(unsigned Flags);
virtual void emitMipsHackSTOCG(MCSymbol *Sym, unsigned Val);
};
// This part is for ELF object output
class MipsTargetELFStreamer : public MipsTargetStreamer {
public:
MCELFStreamer &getStreamer();
MipsTargetELFStreamer();
virtual void emitMipsHackELFFlags(unsigned Flags);
virtual void emitMipsHackSTOCG(MCSymbol *Sym, unsigned Val);
};
}
#endif