llvmbot wrote:

<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang-analysis

Author: Yitzhak Mandelbaum (ymand)

<details>
<summary>Changes</summary>

Commit #<!-- -->3ecfc03 introduced a bug involving an uninitialized field in
`exportLogicalContext`. This patch initializes the field properly.


---
Full diff: https://github.com/llvm/llvm-project/pull/154575.diff


1 Files Affected:

- (modified) clang/lib/Analysis/FlowSensitive/DataflowAnalysisContext.cpp 
(+3-3) 


``````````diff
diff --git a/clang/lib/Analysis/FlowSensitive/DataflowAnalysisContext.cpp 
b/clang/lib/Analysis/FlowSensitive/DataflowAnalysisContext.cpp
index 06a88784a6f94..4196d6821c184 100644
--- a/clang/lib/Analysis/FlowSensitive/DataflowAnalysisContext.cpp
+++ b/clang/lib/Analysis/FlowSensitive/DataflowAnalysisContext.cpp
@@ -285,10 +285,10 @@ SimpleLogicalContext 
DataflowAnalysisContext::exportLogicalContext(
     llvm::DenseSet<dataflow::Atom> TargetTokens) const {
   SimpleLogicalContext LC;
 
-  if (Invariant != nullptr) {
-    LC.Invariant = Invariant;
+  // Copy `Invariant` even if it is null, to initialize the field.
+  LC.Invariant = Invariant;
+  if (Invariant != nullptr)
     getReferencedAtoms(*Invariant, TargetTokens);
-  }
 
   llvm::DenseSet<dataflow::Atom> Dependencies =
       collectDependencies(std::move(TargetTokens));

``````````

</details>


https://github.com/llvm/llvm-project/pull/154575
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