[Bug c/30368] New: wrong result

[lidaobing at gmail dot com]

for the following example[1], it should exit with 0, but under gcc-4.0 gcc-4.1
gcc-4.2 and all optimize level(-O0, -O1, -O2, -O3), it exit with 1;

check gcc versions in [2]

[1]
/*  begin */
struct A { int b; };

int main(int argc, char **argv)
{
    struct A* a = 0;
    if (&a->b) return 1;
    return 0;
}
/* end */

[2] 
gcc version 4.0.4 20060904 (prerelease) (Debian 4.0.3-7)
gcc version 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)
gcc version 4.2.0 20061003 (experimental) (Debian 4.2-20061003-1)


-- 
           Summary: wrong result
           Product: gcc
           Version: 4.0.4
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: lidaobing at gmail dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30368