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https://github.com/c64scene-ar/llvm-6502.git
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cddcabadf2
The fix is just that getOther had not been updated for packing the st_other values in fewer bits and could return spurious values: - unsigned Other = (getFlags() & (0x3f << ELF_STO_Shift)) >> ELF_STO_Shift; + unsigned Other = (getFlags() & (0x7 << ELF_STO_Shift)) >> ELF_STO_Shift; Original message: Pack the MCSymbolELF bit fields into MCSymbol's Flags. This reduces MCSymolfELF from 64 bytes to 56 bytes on x86_64. While at it, also make getOther/setOther easier to use by accepting unshifted STO_* values. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239012 91177308-0d34-0410-b5e6-96231b3b80d8
83 lines
2.5 KiB
C++
83 lines
2.5 KiB
C++
//===-------- MipsELFStreamer.cpp - ELF Object Output ---------------------===//
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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 "MipsELFStreamer.h"
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#include "MipsTargetStreamer.h"
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#include "llvm/MC/MCInst.h"
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#include "llvm/MC/MCSymbolELF.h"
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#include "llvm/Support/ELF.h"
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using namespace llvm;
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void MipsELFStreamer::EmitInstruction(const MCInst &Inst,
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const MCSubtargetInfo &STI) {
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MCELFStreamer::EmitInstruction(Inst, STI);
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MCContext &Context = getContext();
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const MCRegisterInfo *MCRegInfo = Context.getRegisterInfo();
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for (unsigned OpIndex = 0; OpIndex < Inst.getNumOperands(); ++OpIndex) {
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const MCOperand &Op = Inst.getOperand(OpIndex);
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if (!Op.isReg())
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continue;
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unsigned Reg = Op.getReg();
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RegInfoRecord->SetPhysRegUsed(Reg, MCRegInfo);
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}
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createPendingLabelRelocs();
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}
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void MipsELFStreamer::createPendingLabelRelocs() {
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MipsTargetELFStreamer *ELFTargetStreamer =
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static_cast<MipsTargetELFStreamer *>(getTargetStreamer());
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// FIXME: Also mark labels when in MIPS16 mode.
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if (ELFTargetStreamer->isMicroMipsEnabled()) {
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for (auto *L : Labels) {
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auto *Label = cast<MCSymbolELF>(L);
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getAssembler().registerSymbol(*Label);
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Label->setOther(ELF::STO_MIPS_MICROMIPS);
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}
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}
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Labels.clear();
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}
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void MipsELFStreamer::EmitLabel(MCSymbol *Symbol) {
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MCELFStreamer::EmitLabel(Symbol);
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Labels.push_back(Symbol);
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}
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void MipsELFStreamer::SwitchSection(MCSection *Section,
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const MCExpr *Subsection) {
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MCELFStreamer::SwitchSection(Section, Subsection);
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Labels.clear();
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}
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void MipsELFStreamer::EmitValueImpl(const MCExpr *Value, unsigned Size,
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const SMLoc &Loc) {
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MCELFStreamer::EmitValueImpl(Value, Size, Loc);
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Labels.clear();
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}
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void MipsELFStreamer::EmitMipsOptionRecords() {
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for (const auto &I : MipsOptionRecords)
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I->EmitMipsOptionRecord();
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}
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MCELFStreamer *llvm::createMipsELFStreamer(MCContext &Context,
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MCAsmBackend &MAB,
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raw_pwrite_stream &OS,
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MCCodeEmitter *Emitter,
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bool RelaxAll) {
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return new MipsELFStreamer(Context, MAB, OS, Emitter);
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}
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