mirror of
https://github.com/c64scene-ar/llvm-6502.git
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0ba7ba487d
Some temporary symbols are created by MC itself. These symbols are never used
for lookup and are never included in the object symbol table, so we can
avoid creating a name for them.
Other temporaries are created by CodeGen or by the user by explicitly asking
for a name starting with .L (or L on MachO).
These temporaries behave like regular symbols, we just try to avoid including
them in the object symbol table, but sometimes they end up there:
const char *foo() {
return "abc" + 3;
}
will have a relocation pointing to a .L symbol.
It just so happens that almost all MC created temporary has the AlwaysAddSuffix
option and CodeGen/user created ones don't.
One interesting future optimization would be to use unnamed symbols for
all temporaries, but that would require use an st_name of 0 or
having the object writer create the names if a symbol does end up in the
symbol table.
No testcase since this just avoid creating a few extra names for MC created
temporaries.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238887 91177308-0d34-0410-b5e6-96231b3b80d8
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| .. | ||
| MCDisassembler | ||
| MCParser | ||
| CMakeLists.txt | ||
| ConstantPools.cpp | ||
| ELFObjectWriter.cpp | ||
| LLVMBuild.txt | ||
| MachObjectWriter.cpp | ||
| Makefile | ||
| MCAsmBackend.cpp | ||
| MCAsmInfo.cpp | ||
| MCAsmInfoCOFF.cpp | ||
| MCAsmInfoDarwin.cpp | ||
| MCAsmInfoELF.cpp | ||
| MCAsmStreamer.cpp | ||
| MCAssembler.cpp | ||
| MCCodeEmitter.cpp | ||
| MCCodeGenInfo.cpp | ||
| MCContext.cpp | ||
| MCDwarf.cpp | ||
| MCELFObjectTargetWriter.cpp | ||
| MCELFStreamer.cpp | ||
| MCExpr.cpp | ||
| MCInst.cpp | ||
| MCInstPrinter.cpp | ||
| MCInstrAnalysis.cpp | ||
| MCInstrDesc.cpp | ||
| MCLabel.cpp | ||
| MCLinkerOptimizationHint.cpp | ||
| MCMachObjectTargetWriter.cpp | ||
| MCMachOStreamer.cpp | ||
| MCNullStreamer.cpp | ||
| MCObjectFileInfo.cpp | ||
| MCObjectStreamer.cpp | ||
| MCObjectWriter.cpp | ||
| MCRegisterInfo.cpp | ||
| MCSection.cpp | ||
| MCSectionCOFF.cpp | ||
| MCSectionELF.cpp | ||
| MCSectionMachO.cpp | ||
| MCStreamer.cpp | ||
| MCSubtargetInfo.cpp | ||
| MCSymbol.cpp | ||
| MCSymbolELF.cpp | ||
| MCSymbolizer.cpp | ||
| MCTargetOptions.cpp | ||
| MCValue.cpp | ||
| MCWin64EH.cpp | ||
| MCWinEH.cpp | ||
| StringTableBuilder.cpp | ||
| SubtargetFeature.cpp | ||
| WinCOFFObjectWriter.cpp | ||
| WinCOFFStreamer.cpp | ||
| YAML.cpp | ||