[Bug c++/38611] New: [4.2/4.3/4.4 Regression] alignof is broken for user aligned types in templates

["pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

Take:
typedef struct MyStruct {
    unsigned char skip[272];
} MyStruct __attribute__((aligned(128)));

template<typename T>
int GetAlignOf()
{
    int a[ __alignof__(T) != __alignof__(MyStruct) ? -1 : 1];
    return __alignof__(T);
};
int main()
{
    int al1 = GetAlignOf<MyStruct>();
    int al2 = __alignof__(MyStruct);
    return al1 - al2;
}

--- CUT ---
This should compile and execute without any errors and should return 0.


-- 
           Summary: [4.2/4.3/4.4 Regression] alignof is broken for user
                    aligned types in templates
           Product: gcc
           Version: 4.3.3
            Status: UNCONFIRMED
          Keywords: wrong-code
          Severity: critical
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: pinskia at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38611