[PATCH] D71864: [X86] Set all bits of zmm register to 1 before fp_to_int when target only supports avx512dq

[LiuChen via Phabricator via llvm-commits]

LiuChen3 marked an inline comment as done.
LiuChen3 added inline comments.


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Comment at: llvm/test/CodeGen/X86/vector-constrained-fp-intrinsics.ll:4213
 ; AVX512DQ-NEXT:    vmovaps {{.*#+}} xmm0 = [4.2100000000000001E+1,4.2200000000000003E+1]
-; AVX512DQ-NEXT:    vcvttpd2qq %zmm0, %zmm0
+; AVX512DQ-NEXT:    vxorps %xmm1, %xmm1, %xmm1
+; AVX512DQ-NEXT:    vmovaps %xmm0, %xmm1
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VEX.128 and EVEX.128 will zero upper bits (MAXVL-1:128) of the corresponding ZMM register.


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  https://reviews.llvm.org/D71864/new/

https://reviews.llvm.org/D71864