[llvm] 82b5bda - [VectorCombine] Add "VC: Erasing" debug message to help the log show when dead WorkList instructions are erased.

[Simon Pilgrim via llvm-commits]

Author: Simon Pilgrim
Date: 2024-12-20T17:59:14Z
New Revision: 82b5bda42c00179fcf101e3ab2c591bda94ada9a

URL: https://github.com/llvm/llvm-project/commit/82b5bda42c00179fcf101e3ab2c591bda94ada9a
DIFF: https://github.com/llvm/llvm-project/commit/82b5bda42c00179fcf101e3ab2c591bda94ada9a.diff

LOG: [VectorCombine] Add "VC: Erasing" debug message to help the log show when dead WorkList instructions are erased.

Added: 
    

Modified: 
    llvm/lib/Transforms/Vectorize/VectorCombine.cpp

Removed: 
    


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diff  --git a/llvm/lib/Transforms/Vectorize/VectorCombine.cpp b/llvm/lib/Transforms/Vectorize/VectorCombine.cpp
index 785deb918bf8a1..1e39f9d7be1dc5 100644
--- a/llvm/lib/Transforms/Vectorize/VectorCombine.cpp
+++ b/llvm/lib/Transforms/Vectorize/VectorCombine.cpp
@@ -138,6 +138,7 @@ class VectorCombine {
   }
 
   void eraseInstruction(Instruction &I) {
+    LLVM_DEBUG(dbgs() << "VC: Erasing: " << I << '\n');
     for (Value *Op : I.operands())
       Worklist.pushValue(Op);
     Worklist.remove(&I);