Created attachment 25495 [details]
The .ii version of the code in the bug report

gcc version: gcc (Ubuntu/Linaro 4.5.2-8ubuntu4) 4.5.2
Compile line: gcc -std="c++0x" test.cpp -save-temps
test.cpp:11:16: internal compiler error: in constructor_name_p, at cp/name-lookup.c:1809
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-4.5/README.Bugs> for instructions.

The .ii file is attached, but here is the source code:

enum class Foo {
    Val1,
    Val2
};

template <Foo val>
void do_something() {

}

template <Foo::Val1> //Error at this line
void do_something() {

}

int main() {
    return 0;
}

Possibly a duplicate of this bug: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47627, but the code is still different.