http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43494
Steve Ellcey <sje at cup dot hp.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
CC| |sje at cup dot hp.com
Resolution|FIXED |
--- Comment #33 from Steve Ellcey <sje at cup dot hp.com> 2011-02-09 22:44:20
UTC ---
I am reopening this bug because I am getting a failure of
gcc.dg/torture/vector-2.c that started when this patch was checked in. I think
this is
the same test that used to be gcc.c-torture/execute/vector-2.c.
I have a cut down test case that fails (prints 'one') when compiled with -O1
-fno-guess-branch-probability starting at r169782. The
-fno-guess-branch-probability is needed to generate code that uses auto-inc and
trigger the bug.
This fails on IA64 Linux and HP-UX. It does not require the -fpic flag.
Let me know if I should open a new bug instead of re-opening this one.
extern int printf(const char *, ...);
extern void exit(int);
struct __attribute__((packed)) B { unsigned short j : 1, k : 11; };
struct B sB;
void testB (void) {
int i;
unsigned int mask, v, a, r;
struct B x;
sB.k = 750;
r = 750;
x.j = sB.j = 0;
printf("%d %d\n", (int) x.j, (int) sB.j);
printf("%d %d\n", (int) sB.k, (int) r);
if (x.j != sB.j || sB.k != r) printf ("one\n");
}
int
main (void)
{
testB ();
exit (0);
}
