crash on AnalysisBasedWarnings

[llvmbot]

Bugzilla Link	9380
Resolution	FIXED
Resolved on	Mar 02, 2011 19:01
Version	trunk
OS	All
Reporter	LLVM Bugzilla Contributor
CC	@DougGregor,@tkremenek

Extended Description

The test:

struct nsCString {
~nsCString();
};
struct nsPromiseFlatCString : public nsCString {
nsPromiseFlatCString( const nsCString& str );
};
int SetStringProperty(const nsCString& aKey) {
const nsCString& flatKey = nsPromiseFlatCString(aKey);
}

produces a segmentation fault:

$ clang -cc1 -Werror=return-type nsPersistentProperties.ii

0 clang 0x0000000101092ed2 PrintStackTrace(void*) + 34
1 clang 0x0000000101093479 SignalHandler(int) + 857
2 libSystem.B.dylib 0x00007fff81dbd67a _sigtramp + 26
3 clang 0x0000000100595dc3 (anonymous namespace)::CFGBuilder::Visit(clang::Stmt*, (anonymous namespace)::AddStmtChoice) + 14835
4 clang 0x000000010058ccc1 clang::CFGImplicitDtor::getDestructorDecl() const + 113
5 clang 0x000000010058cd59 clang::CFGImplicitDtor::isNoReturn() const + 9
6 clang 0x0000000100279fa4 clang::sema::AnalysisBasedWarnings::IssueWarnings(clang::sema::AnalysisBasedWarnings::Policy, clang::sema::FunctionScopeInfo*, clang::Decl const*, clang::BlockExpr const*) + 2548
...

[llvmbot]

This was introduced by 126875.

[tkremenek]

Fixed: r126909