[PATCH] D67841: [SLP] avoid reduction transform on patterns that the backend can load-combine

Alexey Bataev via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Thu Sep 26 08:48:15 PDT 2019


ABataev added inline comments.


================
Comment at: llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp:6497
+      if (ReductionData.getOpcode() == Instruction::Or)
+        LoadCombineCost = TTI->getLoadCombineCost(FirstReducedVal);
+      if (LoadCombineCost) {
----------------
Shall we move all this stuff to `TargetTransformInfo::getArithmeticInstrCost`?


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D67841/new/

https://reviews.llvm.org/D67841





More information about the llvm-commits mailing list