6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-07-22 09:29:31 +00:00
Code Issues Projects Releases Wiki Activity

Avoid using MCSymbolData on the asm streamer.

Browse Source 
Only the object streamers need to track if a symbol should be marked thumb or
not. This ports the ELF case. The COFF case is not ported since it is currently
not working for some other reason (I will report a bug).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207366 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola 2014-04-27 17:10:46 +00:00
parent 189a2a91c7
commit 70883a252c
3 changed files with 13 additions and 42 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
lib/MC/MCAsmStreamer.cpp
View File

@ -59,10 +59,6 @@ private:
EHPrivateExtern = 1 << 2 };
DenseMap<const MCSymbol*, unsigned> FlagMap;
// Using std::unordered_map to ensure pointers to MCSymbolData remain valid
// over insertions/removals from the SymbolMap.
std::unordered_map<const MCSymbol*, MCSymbolData> SymbolMap;
void EmitRegisterName(int64_t Register);
void EmitCFIStartProcImpl(MCDwarfFrameInfo &Frame) override;
void EmitCFIEndProcImpl(MCDwarfFrameInfo &Frame) override;
@ -258,8 +254,6 @@ public:
void EmitRawTextImpl(StringRef String) override;
void FinishImpl() override;
virtual MCSymbolData &getOrCreateSymbolData(const MCSymbol *Symbol) override;
};
} // end anonymous namespace.
@ -1472,14 +1466,6 @@ void MCAsmStreamer::FinishImpl() {
EmitFrames(AsmBackend.get(), false);
}
MCSymbolData &MCAsmStreamer::getOrCreateSymbolData(const MCSymbol *Symbol) {
auto Iter = SymbolMap.find(Symbol);
if (Iter == SymbolMap.end())
Iter = SymbolMap.insert(
Iter, std::make_pair(Symbol, MCSymbolData(*Symbol, nullptr, 0)));
return Iter->second;
}
MCStreamer *llvm::createAsmStreamer(MCContext &Context,
formatted_raw_ostream &OS,
bool isVerboseAsm, bool useCFI,

28
lib/Target/ARM/AsmParser/ARMAsmParser.cpp
View File

@ -22,9 +22,7 @@
#include "llvm/MC/MCAssembler.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCDisassembler.h"
#include "llvm/MC/MCELF.h"
#include "llvm/MC/MCELFStreamer.h"
#include "llvm/MC/MCELFSymbolFlags.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCInst.h"
#include "llvm/MC/MCInstrDesc.h"
@ -8364,32 +8362,6 @@ void ARMAsmParser::onLabelParsed(MCSymbol *Symbol) {
if (NextSymbolIsThumb) {
getParser().getStreamer().EmitThumbFunc(Symbol);
NextSymbolIsThumb = false;
return;
}
if (!isThumb())
return;
const MCObjectFileInfo::Environment Format =
getContext().getObjectFileInfo()->getObjectFileType();
switch (Format) {
case MCObjectFileInfo::IsCOFF: {
const MCSymbolData &SD =
getParser().getStreamer().getOrCreateSymbolData(Symbol);
char Type = COFF::IMAGE_SYM_DTYPE_FUNCTION << COFF::SCT_COMPLEX_TYPE_SHIFT;
if (SD.getFlags() & (Type << COFF::SF_TypeShift))
getParser().getStreamer().EmitThumbFunc(Symbol);
break;
}
case MCObjectFileInfo::IsELF: {
const MCSymbolData &SD =
getParser().getStreamer().getOrCreateSymbolData(Symbol);
if (MCELF::GetType(SD) & (ELF::STT_FUNC << ELF_STT_Shift))
getParser().getStreamer().EmitThumbFunc(Symbol);
break;
}
case MCObjectFileInfo::IsMachO:
break;
}
}

13
lib/Target/ARM/MCTargetDesc/ARMELFStreamer.cpp
View File

@ -30,6 +30,7 @@
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCInst.h"
#include "llvm/MC/MCInstPrinter.h"
#include "llvm/MC/MCObjectFileInfo.h"
#include "llvm/MC/MCObjectStreamer.h"
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/MC/MCSection.h"
@ -406,6 +407,7 @@ private:
void emitFPU(unsigned FPU) override;
void emitInst(uint32_t Inst, char Suffix = '\0') override;
void finishAttributeSection() override;
void emitLabel(MCSymbol *Symbol) override;
void AnnotateTLSDescriptorSequence(const MCSymbolRefExpr *SRE) override;
@ -981,6 +983,17 @@ void ARMTargetELFStreamer::finishAttributeSection() {
Contents.clear();
FPU = ARM::INVALID_FPU;
}
void ARMTargetELFStreamer::emitLabel(MCSymbol *Symbol) {
ARMELFStreamer &Streamer = getStreamer();
if (!Streamer.IsThumb)
return;
const MCSymbolData &SD = Streamer.getOrCreateSymbolData(Symbol);
if (MCELF::GetType(SD) & (ELF::STT_FUNC << ELF_STT_Shift))
Streamer.EmitThumbFunc(Symbol);
}
void
ARMTargetELFStreamer::AnnotateTLSDescriptorSequence(const MCSymbolRefExpr *S) {
getStreamer().EmitFixup(S, FK_Data_4);