http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46909
H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2010.12.12 19:22:15
Ever Confirmed|0 |1
Severity|normal |blocker
--- Comment #3 from H.J. Lu <hjl.tools at gmail dot com> 2010-12-12 19:22:15
UTC ---
[...@gnu-6 tmp]$ cat y.c
extern void abort ();
struct entry
{
unsigned char tls_type;
} h;
int
__attribute__ ((__noinline__))
foo (struct entry *h)
{
int tls_type = h->tls_type;
if (! ((tls_type) == 4 || ((tls_type) == (2 | 4)))
|| ((tls_type) == 2 || ((tls_type) == (2 | 4))))
return 1;
return -1;
}
int
main ()
{
struct entry h;
h.tls_type = 6;
if (foo (&h) != 1)
abort ();
return 0;
}
[...@gnu-6 tmp]$ /usr/gcc-4.6/bin/gcc -O2 y.c
[...@gnu-6 tmp]$ ./a.out
Aborted
[...@gnu-6 tmp]$ gcc -O2 y.c
[...@gnu-6 tmp]$ ./a.out
[...@gnu-6 tmp]$
