[llvm] 2d26a72 - nullptr initialize variables, spotted on msan bots.

[Eric Christopher via llvm-commits]

Author: Eric Christopher
Date: 2021-09-10T18:10:53-07:00
New Revision: 2d26a72f825c7d8b50da49dda917e85897c8a746

URL: https://github.com/llvm/llvm-project/commit/2d26a72f825c7d8b50da49dda917e85897c8a746
DIFF: https://github.com/llvm/llvm-project/commit/2d26a72f825c7d8b50da49dda917e85897c8a746.diff

LOG: nullptr initialize variables, spotted on msan bots.

Added: 
    

Modified: 
    llvm/lib/Transforms/Scalar/LoopFlatten.cpp

Removed: 
    


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diff  --git a/llvm/lib/Transforms/Scalar/LoopFlatten.cpp b/llvm/lib/Transforms/Scalar/LoopFlatten.cpp
index 83d7899d75bc9..931bcc2aada66 100644
--- a/llvm/lib/Transforms/Scalar/LoopFlatten.cpp
+++ b/llvm/lib/Transforms/Scalar/LoopFlatten.cpp
@@ -424,8 +424,8 @@ static bool checkIVUsers(FlattenInfo &FI) {
 
     LLVM_DEBUG(dbgs() << "Found use of inner induction variable: "; U->dump());
 
-    Value *MatchedMul;
-    Value *MatchedItCount;
+    Value *MatchedMul = nullptr;
+    Value *MatchedItCount = nullptr;
     bool IsAdd = match(U, m_c_Add(m_Specific(FI.InnerInductionPHI),
                                   m_Value(MatchedMul))) &&
                  match(MatchedMul, m_c_Mul(m_Specific(FI.OuterInductionPHI),