[PATCH] [X86] 8bit divrem: Improve codegen for AH register extraction.

Ahmed Bougacha ahmed.bougacha at gmail.com
Mon Nov 3 11:20:55 PST 2014


Also test i386 codegen.

http://reviews.llvm.org/D6064

Files:
  lib/Target/X86/X86ISelDAGToDAG.cpp
  lib/Target/X86/X86ISelLowering.cpp
  lib/Target/X86/X86ISelLowering.h
  lib/Target/X86/X86InstrExtension.td
  lib/Target/X86/X86InstrInfo.td
  test/CodeGen/X86/divrem8_ext.ll
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