http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59601
--- Comment #2 from Uroš Bizjak <ubizjak at gmail dot com> ---
(In reply to Uroš Bizjak from comment #1)
> mv1.C failure migh be a testcase problem. However, the testcase works for me
> on ivybridge, which is also corei7 arch with popcnt.
It also fails for me if I remove avx alternative. Looks like a bug, indeed.
Following test doesn't work on ivbridge (a corei7 cpu):
--cut here--
#include <assert.h>
/* Default version. */
int foo (); // Extra declaration that is merged with the second one.
int foo () __attribute__ ((target("default")));
int foo () __attribute__ ((target("arch=corei7")));
int (*p)() = &foo;
int main ()
{
int val = foo ();
assert (val == (*p)());
/* Check in the exact same order in which the dispatching
is expected to happen. */
if (__builtin_cpu_is ("corei7"))
assert (val == 5);
else
assert (val == 0);
return 0;
}
int __attribute__ ((target("default")))
foo ()
{
return 0;
}
int __attribute__ ((target("arch=corei7")))
foo ()
{
return 5;
}
--cut here--
It looks to me that dispatcher doesn't call corei7 version, while
__builtin_cpu_is works OK.
