[PATCH] D124616: [TTI][X86] Fix splat-load cost when load+broadcast cannot be combined.

[Dave Green via Phabricator via llvm-commits]

dmgreen added inline comments.


================
Comment at: llvm/lib/Target/X86/X86TargetTransformInfo.cpp:1616
+      bool LoadCanBeCombined =
+          L->hasOneUse() && isa<Instruction>(L->user_back());
+      if (ST->hasSSE3() && LoadCanBeCombined)
----------------
The user of an instruction should always be an instruction.

Just to make sure - it isn't a problem for the SLP vectorizer is it? That the load might have multiple uses, which we are turning into a splat?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D124616/new/

https://reviews.llvm.org/D124616