http://llvm.org/bugs/show_bug.cgi?id=17194
Bug ID: 17194
Summary: Use of undefined local struct triggers assertion in
SemaTemplateInstantiate.cpp
Product: clang
Version: 3.3
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: -New Bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
Trying to compile the following with clang SVN trunk 190512 (also tried
clang-3.3, same result) triggers an assertion in
SemaTemplateInstantiate.cpp:2758: llvm::PointerUnion<clang::Decl*,
llvm::SmallVector<clang::Decl*, 4u>*>*
clang::LocalInstantiationScope::findInstantiationOf(const clang::Decl*):
Assertion `isa<LabelDecl>(D) && "declaration not instantiated in this scope"'
failed.
--- SNIP ---
template <class U>
class B {};
template <typename T>
void g() {
B<struct X> b;
}
void f() {
g<double>();
}
--- SNIP ---
The assertion is NOT triggered, for example, when I replace g() with the
following version:
void g() {
struct X;
B<X> b;
}
Command line was simply 'clang++ -std=c++11 crash.cpp'.
This might be related to bug #9685, but I'm not sure.
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