[Bug tree-optimization/39300] vectorizer confused by predictive commoning and PRE
rguenth at gcc dot gnu dot org
gcc-bugzilla@gcc.gnu.org
Wed Feb 25 14:07:00 GMT 2009
------- Comment #3 from rguenth at gcc dot gnu dot org 2009-02-25 14:07 -------
Simpler C testcase:
float res[1024], data[1024];
void foo(void)
{
int i;
float tmp = data[0];
for (i = 1; i < 1024; ++i)
{
float tmp2 = data[i];
res[i] = tmp + tmp2;
tmp = tmp2;
}
}
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39300
More information about the Gcc-bugs
mailing list