[PATCH] D48768: [X86] When have BMI2, prefer shifts to clear low/high bits, rather than variable mask.

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This revision was automatically updated to reflect the committed changes.
Closed by commit rL336585: [X86][TLI] DAGCombine: Unfold variable bit-clearing mask to two shifts. (authored by lebedevri, committed by ).

Changed prior to commit:
  https://reviews.llvm.org/D48768?vs=153948&id=154673#toc

Repository:
  rL LLVM

https://reviews.llvm.org/D48768

Files:
  llvm/trunk/include/llvm/CodeGen/TargetLowering.h
  llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
  llvm/trunk/lib/Target/X86/X86ISelLowering.h
  llvm/trunk/test/CodeGen/X86/clear-highbits.ll
  llvm/trunk/test/CodeGen/X86/clear-lowbits.ll
  llvm/trunk/test/CodeGen/X86/extract-lowbits.ll

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