[PATCH] D79360: [DAGCombiner] sink target-supported cast op after concat vectors

Craig Topper via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Mon May 4 13:27:01 PDT 2020


craig.topper added inline comments.


================
Comment at: llvm/test/CodeGen/X86/avx-shift.ll:177
+; CHECK-NEXT:    vinsertf128 $1, %xmm1, %ymm0, %ymm0
+; CHECK-NEXT:    vcvttps2dq %ymm0, %ymm0
 ; CHECK-NEXT:    retq
----------------
Do we do the best thing if the shl is used by another operation that needs to be split? Do we keep the vcvttps2dq split?


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D79360/new/

https://reviews.llvm.org/D79360





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