[PATCH] D52570: [X86] Don't generate BMI BEXTR from X86DAGToDAGISel::matchBEXTRFromAnd

[Craig Topper via Phabricator via llvm-commits]

craig.topper updated this revision to Diff 167546.
craig.topper added a comment.

Add feature flag and put it on AMD CPUs.

I removed some of the unused check prefixes from bmi.ll so I didn't have to add even more variations of them.


https://reviews.llvm.org/D52570

Files:
  lib/Target/X86/X86.td
  lib/Target/X86/X86ISelDAGToDAG.cpp
  lib/Target/X86/X86Subtarget.h
  test/CodeGen/X86/bmi-x86_64.ll
  test/CodeGen/X86/bmi.ll
  test/CodeGen/X86/extract-bits.ll

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