[llvm] f09f4b2 - [OpenMPOpt] Initialize value to avoid use of uninitialized memory

[Johannes Doerfert via llvm-commits]

Author: Johannes Doerfert
Date: 2020-03-23T19:17:19-05:00
New Revision: f09f4b26762ab5d5c15ab6f66eb02a497c5f0b8e

URL: https://github.com/llvm/llvm-project/commit/f09f4b26762ab5d5c15ab6f66eb02a497c5f0b8e
DIFF: https://github.com/llvm/llvm-project/commit/f09f4b26762ab5d5c15ab6f66eb02a497c5f0b8e.diff

LOG: [OpenMPOpt] Initialize value to avoid use of uninitialized memory

This should fix the issue reported here:
  https://reviews.llvm.org/D76058#1937554

Added: 
    

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

Removed: 
    


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diff  --git a/llvm/lib/Transforms/IPO/OpenMPOpt.cpp b/llvm/lib/Transforms/IPO/OpenMPOpt.cpp
index ca52a618be4c..8b45350ce44c 100644
--- a/llvm/lib/Transforms/IPO/OpenMPOpt.cpp
+++ b/llvm/lib/Transforms/IPO/OpenMPOpt.cpp
@@ -79,7 +79,7 @@ struct OpenMPOpt {
     SmallVector<Type *, 8> ArgumentTypes;
 
     /// The declaration if available.
-    Function *Declaration;
+    Function *Declaration = nullptr;
 
     /// Uses of this runtime function per function containing the use.
     DenseMap<Function *, SmallPtrSet<Use *, 16>> UsesMap;