http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55170
Bug #: 55170
Summary: incorrect mangling, should not include prefix
Classification: Unclassified
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: rafael.espind...@gmail.com
Given the testcase
namespace mozilla {
template<typename From>
struct IsConvertible {
static const bool value =true;
};
template<bool B>
struct EnableIf {
typedef int Type;
};
template <typename S>
void Handle(S x, typename EnableIf<IsConvertible<S>::value>::Type dummy) {
}
template void
Handle(int x, EnableIf<IsConvertible<int>::value>::Type dummy);
}
With current gcc trunk (193066) we get
$ gcc -fabi-version=0 -c test.cpp -w
$ nm test.o
0000000000000000 W
_ZN7mozilla6HandleIiEEvT_NS_8EnableIfIXsrNS_13IsConvertibleIS1_EE5valueEE4TypeE
And with clang
$ ./build/bin/clang -c test.cpp
$ nm test.o
0000000000000000 W
_ZN7mozilla6HandleIiEEvT_NS_8EnableIfIXsr13IsConvertibleIS1_EE5valueEE4TypeE
I initially thought the bug was in clang and reported llvm.org/pr14118, but
John McCall says that "On cxx-abi-dev, I believe we decided that
prefixes on unresolved-names should be mangled essentially as written".
