------- Comment #20 from rguenth at gcc dot gnu dot org 2007-07-20 17:22 ------- Whoops ;) I missed that.
I have a counter-example that is better with the patch in the same way yours
is worse with it.
void f(unsigned int *p, unsigned int a)
{
p[0] = a * 4 + 4;
p[1] = a * 8 + 8;
p[2] = a * 12 + 12;
}
As I said, the fold canonicalization is just canonicalization, the code
generation has to be fixed elsewhere.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32698
