https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96685
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Ever confirmed|0 |1
Target| |x86_64-*-* i?86-*-*
Last reconfirmed| |2020-08-25
Status|UNCONFIRMED |NEW
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
It's at least a missed canonicalization as ~x + y isn't transformed to ~(x - y)
either.
int f(int x, int y)
{
return ~(x - y) + (~x + y);
}
should see CSE, with a minus folding to zero (that works already for some
reason).
