[PATCH] D52912: [SelectionDAG] allow FP binops in SimplifyDemandedVectorElts

Craig Topper via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Fri Oct 5 14:23:11 PDT 2018


craig.topper added inline comments.


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Comment at: test/CodeGen/X86/avx512-hadd-hsub.ll:183
+; KNL-NEXT:    vunpckhpd {{.*#+}} ymm0 = ymm0[1],ymm1[1],ymm0[3],ymm1[3]
 ; KNL-NEXT:    vaddpd %zmm0, %zmm2, %zmm0
 ; KNL-NEXT:    # kill: def $ymm0 killed $ymm0 killed $zmm0
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Do you have a plan to narrow the add here too?


https://reviews.llvm.org/D52912





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