[PATCH] D36536: [X86][AVX512] Add combine for TESTM

[Guy Blank via Phabricator via llvm-commits]

guyblank created this revision.

The patch adds an X86 combine for TESTM when one of the operands is a BUILD_VECTOR(0,0,...)


https://reviews.llvm.org/D36536

Files:
  lib/Target/X86/X86ISelLowering.cpp
  test/CodeGen/X86/avx512vl-vec-masked-cmp.ll

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