[PATCH] D102721: [CSSPGO] Avoid deleting probe instruction in FoldValueComparisonIntoPredecessors

[Lei Wang via Phabricator via llvm-commits]

wlei created this revision.
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Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D102721

Files:
  llvm/lib/Transforms/Utils/SimplifyCFG.cpp


Index: llvm/lib/Transforms/Utils/SimplifyCFG.cpp
===================================================================
--- llvm/lib/Transforms/Utils/SimplifyCFG.cpp
+++ llvm/lib/Transforms/Utils/SimplifyCFG.cpp
@@ -1325,6 +1325,10 @@
     DTU->applyUpdates(Updates);
   }
 
+  // Here the BB is not a dead block but folded into its predecessors, so move
+  // the probe and mark it as dangling.
+  moveAndDanglePseudoProbes(BB, NewSI);
+
   ++NumFoldValueComparisonIntoPredecessors;
   return true;
 }


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