[PATCH] D72312: [DAGCombine] Fold the (fma -x, y, -z) to -(fma x, y, z)

Dávid Bolvanský via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Wed Jan 8 04:08:20 PST 2020


xbolva00 added inline comments.


================
Comment at: llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp:12645
+  if (!TLI.isFNegFree(VT) &&
+      TLI.isNegatibleForFree(SDValue(N, 0), DAG, LegalOperations,
+                             ForCodeSize) == 2)
----------------
It would be better if this function returns enum constant to improve readability.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D72312/new/

https://reviews.llvm.org/D72312





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