[PATCH] D17138: AVX512: Change store size of kmask.

[Igor Breger via llvm-commits]

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AVX512: Change store size of kmask. Store size of v8i1, v4i1 , v2i1 and i1 are changed to 16 bits.
If KMOVB not supported (require  AVX512DQ) only KMOVW can be used  so store size should be 2 bytes.

Repository:
  rL LLVM

http://reviews.llvm.org/D17138

Files:
  lib/Target/X86/X86ISelLowering.cpp
  lib/Target/X86/X86InstrInfo.cpp
  lib/Target/X86/X86RegisterInfo.td
  test/CodeGen/X86/avx512-intel-ocl.ll
  test/CodeGen/X86/avx512-mask-spills.ll

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