------- Additional Comments From dberlin at gcc dot gnu dot org 2005-01-23 02:08 ------- Subject: Re: [3.4/4.0 Regression] poor register allocation
On Sat, 23 Jan 2005, steven at gcc dot gnu dot org wrote: > > ------- Additional Comments From steven at gcc dot gnu dot org 2005-01-23 > 01:49 ------- > This is a tree-optimization bug for 4.0 and later. I think the problem > is that we don't catch the store motion opportunity at the tree level > because to the tree alias analyses arrays are opaque objects. On RTL > we can distinguish the array members. > > If this is the problem, then Dan's sa-branch work should fix it... > Dan? It will once i handle constant index array refs (It currently punts on array refs entirely). -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19580
