[llvm-dev] replacing multiplication operation by bit shifts, etc

escha via llvm-dev llvm-dev at lists.llvm.org
Wed Aug 12 10:21:03 PDT 2015

> On Aug 12, 2015, at 9:01 AM, Quolick via llvm-dev <llvm-dev at lists.llvm.org> wrote:
> Hi!
> All compilers can replace multiplication operation by bit shifts and LEA x86 instruction
> (if current target arch is x86).
> Can I ask, where in LLVM this happens? I can't find it in source code.

lib/Target/X86/X86ISelLowering.cpp: PerformMulCombine

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