[PATCH] D49213: [analyzer] pr38072: Suppress an assertion failure for eliding the same destructor twice due to the default argument problem.
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Tue Jul 31 14:18:14 PDT 2018
This revision was automatically updated to reflect the committed changes.
Closed by commit rC338441: [analyzer] Fix eliding the same destructor twice due to buggy default arguments. (authored by dergachev, committed by ).
Repository:
rC Clang
https://reviews.llvm.org/D49213
Files:
lib/StaticAnalyzer/Core/ExprEngine.cpp
test/Analysis/temporaries.cpp
Index: test/Analysis/temporaries.cpp
===================================================================
--- test/Analysis/temporaries.cpp
+++ test/Analysis/temporaries.cpp
@@ -458,6 +458,21 @@
#endif // TEMPORARY_DTORS
}
+namespace default_param_elided_destructors {
+struct a {
+ ~a();
+};
+struct F {
+ a d;
+ F(char *, a = a());
+};
+void g() {
+ char h[1];
+ for (int i = 0;;)
+ F j(i ? j : h);
+}
+} // namespace default_param_elided_destructors
+
void testStaticMaterializeTemporaryExpr() {
static const Trivial &ref = getTrivial();
clang_analyzer_eval(ref.value == 42); // expected-warning{{TRUE}}
Index: lib/StaticAnalyzer/Core/ExprEngine.cpp
===================================================================
--- lib/StaticAnalyzer/Core/ExprEngine.cpp
+++ lib/StaticAnalyzer/Core/ExprEngine.cpp
@@ -460,7 +460,8 @@
const CXXBindTemporaryExpr *BTE,
const LocationContext *LC) {
ConstructedObjectKey Key({BTE, /*IsElided=*/true}, LC);
- assert(!State->contains<ObjectsUnderConstruction>(Key));
+ // FIXME: Currently the state might already contain the marker due to
+ // incorrect handling of temporaries bound to default parameters.
return State->set<ObjectsUnderConstruction>(Key, UnknownVal());
}
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