mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-07-22 09:29:31 +00:00
583dac827c
Create a low-overhead path for `EmitLabelDifference()` that emits a emits an absolute number when (1) the output is an object stream and (2) the two symbols are in the same data fragment. This drops memory usage on Mach-O from 975 MB down to 919 MB (5.8%). The only call is when `!doesDwarfUseRelocationsAcrossSections()` -- i.e., on Mach-O -- since otherwise an absolute offset from the start of the section needs a relocation. (`EmitLabelDifference()` is cheaper on ELF anyway, since it creates 1 fewer temp symbol, and it gets called far less often. It's not clear to me if this is even a bottleneck there.) (I'm looking at `llc` memory usage on `verify-uselistorder.lto.opt.bc`; see r236629 for details.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237876 91177308-0d34-0410-b5e6-96231b3b80d8 |
||
|---|---|---|
| .. | ||
| 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 | ||
| MCELF.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 | ||
| MCSymbolizer.cpp | ||
| MCTargetOptions.cpp | ||
| MCValue.cpp | ||
| MCWin64EH.cpp | ||
| MCWinEH.cpp | ||
| StringTableBuilder.cpp | ||
| SubtargetFeature.cpp | ||
| WinCOFFObjectWriter.cpp | ||
| WinCOFFStreamer.cpp | ||
| YAML.cpp | ||