[PATCH] D18444: AVX-512: Generate KTEST instead of TEST

[Elena Demikhovsky via llvm-commits]

delena created this revision.
delena added a reviewer: igorb.
delena added a subscriber: llvm-commits.
delena set the repository for this revision to rL LLVM.

KTEST instruction may be used instead of TEST in this case:

 %int_sel3 = bitcast <8 x i1> %sel3 to i8
  %res = icmp eq i8 %int_sel3, zeroinitializer
  br i1 %res, label %L2, label %L1



Repository:
  rL LLVM

http://reviews.llvm.org/D18444

Files:
  ../lib/Target/X86/X86ISelLowering.cpp
  ../test/CodeGen/X86/avx512-mask-op.ll

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