[LLVMbugs] [Bug 7896] New: c++ crash with overloading and using decl in class template

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=7896

           Summary: c++ crash with overloading and using decl in class
                    template
           Product: clang
           Version: unspecified
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: C++
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: sharparrow1 at yahoo.com
                CC: llvmbugs at cs.uiuc.edu, dgregor at apple.com


Testcase:
template <class T> struct Foo {
  int k (float);
};
struct Baz {
  int k (int);
};
template <class T> struct Bar : public Foo<T>, Baz {
  using Foo<T>::k;
  using Baz::k;
  int foo() {
    return k (1.0f);
  }
};
template int Bar<int>::foo();

Crashes with:
clang: SemaTemplateInstantiateDecl.cpp:2688: clang::NamedDecl*
clang::Sema::FindInstantiatedDecl(clang::SourceLocation, clang::NamedDecl*,
const clang::MultiLevelTemplateArgumentList&): Assertion `(Result ||
isa<UsingShadowDecl>(D) || D->isInvalidDecl() ||
cast<Decl>(ParentDC)->isInvalidDecl()) && "Unable to find instantiation of
declaration!"' failed.

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