[PATCH] D149404: [ValueTracking][InstCombine] Add a new API to allow to ignore poison generating flags or metadatas when implying poison

Noah Goldstein via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Fri May 12 15:10:40 PDT 2023


goldstein.w.n added inline comments.


================
Comment at: llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp:2932
+    if (impliesPoisonIgnoreFlagsOrMetadatas(FalseVal, CondVal, DropFlags)) {
+      for (Instruction *I : DropFlags)
+        I->dropPoisonGeneratingFlagsAndMetadata();
----------------
Still in favor of putting this loop in some API function. It can be in InstCombine.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D149404/new/

https://reviews.llvm.org/D149404



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