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one-byte NOPs. If the processor actually executes those NOPs, as it sometimes does with aligned bundling, this can have a performance impact. From my micro-benchmarks run on my one machine, a 15-byte NOP followed by twelve one-byte NOPs is about 20% worse than a 15 followed by a 12. This patch changes NOP emission to emit as many 15-byte (the maximum) as possible followed by at most one shorter NOP. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176464 91177308-0d34-0410-b5e6-96231b3b80d8 |
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.. | ||
CMakeLists.txt | ||
LLVMBuild.txt | ||
Makefile | ||
X86AsmBackend.cpp | ||
X86BaseInfo.h | ||
X86ELFObjectWriter.cpp | ||
X86FixupKinds.h | ||
X86MachObjectWriter.cpp | ||
X86MCAsmInfo.cpp | ||
X86MCAsmInfo.h | ||
X86MCCodeEmitter.cpp | ||
X86MCTargetDesc.cpp | ||
X86MCTargetDesc.h | ||
X86WinCOFFObjectWriter.cpp |