[PATCH] D73978: [WIP][FPEnv] Don't transform FSUB(-0.0,X)->FNEG(X) when flushing denormals

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added inline comments.


================
Comment at: llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp:12590
+      DenormalMode DenormMode = DAG.getDenormalMode(VT);
+      if (DenormMode == DenormalMode::getInvalid() ||
+          DenormMode == DenormalMode::getIEEE()) {
----------------
Shouldn't be considering invalid anymore


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D73978/new/

https://reviews.llvm.org/D73978