[PATCH] D38684: [X86][AVX512] lowering broadcastm intrinsic - llvm part

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added inline comments.


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Comment at: test/CodeGen/X86/avx512vlcd-intrinsics-fast-isel.ll:8
+; CHECK-NEXT:    vpcmpeqd %xmm1, %xmm0, %k0
+; CHECK-NEXT:    vpbroadcastmb2q %k0, %xmm0
+; CHECK-NEXT:    retq
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Why do the avx512vlcd fast-isel cases use the vpbroadcastmb2 instructions but the avx512cd cases go through the GPRs?


https://reviews.llvm.org/D38684