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-rw-r--r--clang/lib/StaticAnalyzer/Core/ExprEngine.cpp13
1 files changed, 12 insertions, 1 deletions
diff --git a/clang/lib/StaticAnalyzer/Core/ExprEngine.cpp b/clang/lib/StaticAnalyzer/Core/ExprEngine.cpp
index 04629dc0170..552b2eca26e 100644
--- a/clang/lib/StaticAnalyzer/Core/ExprEngine.cpp
+++ b/clang/lib/StaticAnalyzer/Core/ExprEngine.cpp
@@ -209,7 +209,18 @@ ExprEngine::createTemporaryRegionIfNeeded(ProgramStateRef State,
// Create a temporary object region for the inner expression (which may have
// a more derived type) and bind the value into it.
- const TypedValueRegion *TR = MRMgr.getCXXTempObjectRegion(Inner, LC);
+ const TypedValueRegion *TR = NULL;
+ if (const MaterializeTemporaryExpr *MT =
+ dyn_cast<MaterializeTemporaryExpr>(Result)) {
+ StorageDuration SD = MT->getStorageDuration();
+ // If this object is bound to a reference with static storage duration, we
+ // put it in a different region to prevent "address leakage" warnings.
+ if (SD == SD_Static || SD == SD_Thread)
+ TR = MRMgr.getCXXStaticTempObjectRegion(Inner);
+ }
+ if (!TR)
+ TR = MRMgr.getCXXTempObjectRegion(Inner, LC);
+
SVal Reg = loc::MemRegionVal(TR);
if (V.isUnknown())
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