[PATCH] D78216: [TTI] Add DemandedElts to getScalarizationOverhead

[Craig Topper via Phabricator via llvm-commits]

craig.topper added inline comments.


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Comment at: llvm/lib/Target/X86/X86TargetTransformInfo.cpp:2691
+        Cost += (PowerOf2Ceil(NumSubVecs) - 1) * LT.first;
+        Cost += DemandedElts.countPopulation();
+      }
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What about the 0 cost for fp insertion into element 0 of each subvector?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D78216/new/

https://reviews.llvm.org/D78216