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//===-------- MipsELFStreamer.cpp - ELF Object Output ---------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "MipsELFStreamer.h"
#include "MipsTargetStreamer.h"
#include "llvm/MC/MCELF.h"
#include "llvm/MC/MCInst.h"
#include "llvm/Support/ELF.h"
using namespace llvm;
void MipsELFStreamer::EmitInstruction(const MCInst &Inst,
const MCSubtargetInfo &STI) {
MCELFStreamer::EmitInstruction(Inst, STI);
MCContext &Context = getContext();
const MCRegisterInfo *MCRegInfo = Context.getRegisterInfo();
MipsTargetELFStreamer *ELFTargetStreamer =
static_cast<MipsTargetELFStreamer *>(getTargetStreamer());
for (unsigned OpIndex = 0; OpIndex < Inst.getNumOperands(); ++OpIndex) {
const MCOperand &Op = Inst.getOperand(OpIndex);
if (!Op.isReg())
continue;
unsigned Reg = Op.getReg();
RegInfoRecord->SetPhysRegUsed(Reg, MCRegInfo);
}
if (ELFTargetStreamer->isMicroMipsEnabled()) {
for (auto Label : Labels) {
MCSymbolData &Data = getOrCreateSymbolData(Label);
// 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, ELF::STO_MIPS_MICROMIPS >> 2);
}
}
Labels.clear();
}
void MipsELFStreamer::EmitLabel(MCSymbol *Symbol) {
MCELFStreamer::EmitLabel(Symbol);
Labels.push_back(Symbol);
}
void MipsELFStreamer::SwitchSection(const MCSection * Section,
const MCExpr *Subsection) {
MCELFStreamer::SwitchSection(Section, Subsection);
Labels.clear();
}
void MipsELFStreamer::EmitValueImpl(const MCExpr *Value, unsigned Size,
const SMLoc &Loc) {
MCELFStreamer::EmitValueImpl(Value, Size, Loc);
Labels.clear();
}
void MipsELFStreamer::EmitMipsOptionRecords() {
for (const auto &I : MipsOptionRecords)
I->EmitMipsOptionRecord();
}
MCELFStreamer *llvm::createMipsELFStreamer(MCContext &Context,
MCAsmBackend &MAB, raw_ostream &OS,
MCCodeEmitter *Emitter,
bool RelaxAll) {
return new MipsELFStreamer(Context, MAB, OS, Emitter);
}
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