[PATCH] D36069: [X86][InstCombine] Add some constant folding for BZHI intrinsics

[Craig Topper via Phabricator via llvm-commits]

craig.topper created this revision.

This intrinsic clears the upper bits starting at a specified index. If the index is a constant we can do some simplifications.


https://reviews.llvm.org/D36069

Files:
  lib/Transforms/InstCombine/InstCombineCalls.cpp
  test/Transforms/InstCombine/X86/x86-bmi-tbm.ll

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