[PATCH] D130954: [DeadArgElim] Clear state before returning (NFC).

[Michele Scandale via Phabricator via llvm-commits]

michele.scandale created this revision.
michele.scandale added reviewers: fhahn, aeubanks, nikic.
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Ensure that the all state that depends on a module or context is cleared
so that there are no issues when the same instance of the pass is used
to process different modules.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D130954

Files:
  llvm/lib/Transforms/IPO/DeadArgumentElimination.cpp


Index: llvm/lib/Transforms/IPO/DeadArgumentElimination.cpp
===================================================================
--- llvm/lib/Transforms/IPO/DeadArgumentElimination.cpp
+++ llvm/lib/Transforms/IPO/DeadArgumentElimination.cpp
@@ -1112,6 +1112,10 @@
   for (auto &F : M)
     Changed |= removeDeadArgumentsFromCallers(F);
 
+  LiveFunctions.clear();
+  LiveValues.clear();
+  Uses.clear();
+
   if (!Changed)
     return PreservedAnalyses::all();
   return PreservedAnalyses::none();


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