[PATCH] D53214: [X86][SSE] Change CTTZ vector lowering to cttz(x) = ctpop(~x & (x - 1))

[Simon Pilgrim via Phabricator via llvm-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rL344447: [X86][SSE] Change CTTZ vector lowering to cttz(x) = ctpop(~x & (x - 1)) (authored by RKSimon, committed by ).

Changed prior to commit:
  https://reviews.llvm.org/D53214?vs=169477&id=169559#toc

Repository:
  rL LLVM

https://reviews.llvm.org/D53214

Files:
  llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
  llvm/trunk/test/CodeGen/X86/vec_ctbits.ll
  llvm/trunk/test/CodeGen/X86/vector-tzcnt-128.ll
  llvm/trunk/test/CodeGen/X86/vector-tzcnt-256.ll
  llvm/trunk/test/CodeGen/X86/vector-tzcnt-512.ll

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