[PATCH] D23673: [X86][SSE] Add support for 32-bit element vectors to X86ISD::VZEXT_LOAD

Simon Pilgrim via llvm-commits llvm-commits at lists.llvm.org
Tue Aug 23 01:51:33 PDT 2016


RKSimon added a comment.

In https://reviews.llvm.org/D23673#522735, @mkuper wrote:

> We still need the vzmovl patterns because of lowerVectorShuffleAsElementInsertion, right? Do we have anything them tests them now that we will no longer generate these patterns in EltsFromConsecutiveLoads?


I started stripping these to find out - it appears to be very hit and miss, whether its a test coverage issue or they can't match any longer is a length investigation. Given that many still have v2i64 equivalents suggests that they can get used.


Repository:
  rL LLVM

https://reviews.llvm.org/D23673





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