On 05/06/2011 12:56 PM, Chung-Lin Tang wrote:
> I'm not sure why it doesn't allow both?
>
> Paolo
Hi Paolo, I'm not sure I understand your meaning of 'both', but before
this patch, it only tested for == const0_rtx, without any attempt of
other cases.
Now it tests CONST_INT_P(XEXP(SET_SRC(PATTERN(i3)),1)), attempts a
simplification which may change a non-zero constant to const0_rtx, then
test for const0_rtx. Supposedly, the new code should be strictly more
general.
Uff. Stupid question is stupid.
Paolo
