[PATCH] D115432: [LV][ARM] Improve reduction costmodel for mismatching extension types.

[Sander de Smalen via Phabricator via llvm-commits]

sdesmalen added inline comments.


================
Comment at: llvm/lib/Transforms/Vectorize/LoopVectorize.cpp:7086
+      Type *Op1Ty = Op1->getOperand(0)->getType();
+      Type *LargestOpTy =
+          Op0Ty->getIntegerBitWidth() < Op1Ty->getIntegerBitWidth() ? Op1Ty
----------------
Is there any rationale for using the largest instead of the smallest type here? And would changing it to the smallest change the result of the test?


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D115432/new/

https://reviews.llvm.org/D115432