[llvm] Generate `kmov` for masking integers (PR #120593)

[Phoebe Wang via llvm-commits]

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@@ -256,8 +256,8 @@ define <16 x i8> @produceShuffleVectorForByte(i8 zeroext %0) nounwind {
 ;
 ; X64-AVX512-LABEL: produceShuffleVectorForByte:
 ; X64-AVX512:       # %bb.0: # %entry
-; X64-AVX512-NEXT:    vpbroadcastb %edi, %xmm0
-; X64-AVX512-NEXT:    vptestnmb {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0, %k1
+; X64-AVX512-NEXT:    kmovw %edi, %k0
+; X64-AVX512-NEXT:    knotw %k0, %k1
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phoebewang wrote:

Please check why 32-bit not affected?

https://github.com/llvm/llvm-project/pull/120593