On Thu, Oct 05, 2017 at 10:46:13AM +0200, Richard Biener wrote: > >> PR rtl-optimization/77729 > >> * simplify-rtx.c (simplify_binary_operation_1): Delete the (X&C1)|C2 > >> to (X&(C1&~C2))|C2 transformations. > > OK for the trunk. I'm not sure if the BZ in question qualifies this > > patch for backporting though. Release managers have the final say on > > the backport question. > > We usually avoid doing "optimization regression" backports unless very very > important and obvious.
It's very obvious, and quite important, but not very very important so I won't champion backports :-) Segher
