[PATCH] D141777: [X86] Reenable store merging post-legalization

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri added inline comments.


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Comment at: llvm/lib/Target/X86/X86ISelLowering.h:1077
+        EVT MemVT, std::optional<StoreSource> StoreSrc) const override {
+      return !StoreSrc || StoreSrc != StoreSource::ExtractSubvector;
     }
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RKSimon wrote:
> should we play safe and treat unknown as a potential extractsubvector?
Let me just assert that we don't get `unknown` here.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D141777/new/

https://reviews.llvm.org/D141777