------- Comment #8 from rguenther at suse dot de 2010-09-04 08:29 ------- Subject: Re: VRP misses oppurtunity for statement folding.
On Fri, 3 Sep 2010, hubicka at gcc dot gnu dot org wrote: > ------- Comment #7 from hubicka at gcc dot gnu dot org 2010-09-03 20:28 > ------- > In #5 the expression is created by PRE via create_expression_by_pieces that > uses normal fold that is not able of constant variable folding. The statement > does not get folded later and survives. I guess one can fold all statements > in > commit_edge_insertions but it seems by symptomatic? You need to enhance fully_constant_vn_reference_p. Richard. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45522
