[llvm] d46fa1f - [ArgumentPromotion] use poison when replacing dead instructions instead of undef [NFC]

[Nuno Lopes via llvm-commits]

Author: Nuno Lopes
Date: 2022-06-26T13:44:05+01:00
New Revision: d46fa1fc58b4339eee913384270dd6e8649afc6c

URL: https://github.com/llvm/llvm-project/commit/d46fa1fc58b4339eee913384270dd6e8649afc6c
DIFF: https://github.com/llvm/llvm-project/commit/d46fa1fc58b4339eee913384270dd6e8649afc6c.diff

LOG: [ArgumentPromotion] use poison when replacing dead instructions instead of undef [NFC]

Added: 
    

Modified: 
    llvm/lib/Transforms/IPO/ArgumentPromotion.cpp

Removed: 
    


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diff  --git a/llvm/lib/Transforms/IPO/ArgumentPromotion.cpp b/llvm/lib/Transforms/IPO/ArgumentPromotion.cpp
index bf769ec62c30..913c7146b954 100644
--- a/llvm/lib/Transforms/IPO/ArgumentPromotion.cpp
+++ b/llvm/lib/Transforms/IPO/ArgumentPromotion.cpp
@@ -431,7 +431,7 @@ static Function *doPromotion(
     }
 
     for (Instruction *I : DeadInsts) {
-      I->replaceAllUsesWith(UndefValue::get(I->getType()));
+      I->replaceAllUsesWith(PoisonValue::get(I->getType()));
       I->eraseFromParent();
     }
   }