Use sbb x, x to materialize carry bit in a GPR. The result is all one's or all zero's. (0e8b9e32) · Commits · Roger Ferrer / llvm-epi-0.8 · GitLab

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0e8b9e32

Commit 0e8b9e32 authored 15 years ago by Evan Cheng

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Use sbb x, x to materialize carry bit in a GPR. The result is all one's or all zero's.

llvm-svn: 91381

parent d1521ef4

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llvm/lib/Target/X86/X86ISelLowering.cpp 61 additions, 3 deletions

llvm/lib/Target/X86/X86ISelLowering.cpp
llvm/lib/Target/X86/X86ISelLowering.h 4 additions, 0 deletions

llvm/lib/Target/X86/X86ISelLowering.h
llvm/lib/Target/X86/X86Instr64bit.td 9 additions, 0 deletions

llvm/lib/Target/X86/X86Instr64bit.td
llvm/lib/Target/X86/X86InstrInfo.td 22 additions, 0 deletions

llvm/lib/Target/X86/X86InstrInfo.td
llvm/test/CodeGen/X86/setcc.ll 23 additions, 0 deletions

llvm/test/CodeGen/X86/setcc.ll

with 119 additions and 3 deletions

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