https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67057
--- Comment #1 from Oleg Endo <olegendo at gcc dot gnu.org> ---
For some cases where T+const_int is calculated, like ...
int foo (int a, int b)
{
return a == b ? 5 : 4;
}
comiled with -O2:
cmp/eq r5,r4
movt r0
rts
add #4,r0
.. the dependency of the comparison and the T bit store can be reduced:
cmp/eq r5,r4
mov #2,r0
rts
addc r0,r0
This works only for even constants.
