------- Comment #14 from rguenther at suse dot de 2008-08-28 08:02 ------- Subject: Re: missed FRE opportunity because of signedness of addition
On Thu, 28 Aug 2008, bonzini at gnu dot org wrote: > ------- Comment #13 from bonzini at gnu dot org 2008-08-28 06:16 ------- > Answering to your comment #11, one is a sizetype and one is not. But it is > enough to extend my fold-const.c patch to MULT_EXPRs in order to catch it. > > Also, the problem with the full testcase is that PRE is not cascading > "enough". > Adding another PRE pass right after the first catches it. That would be a bug unless its a very weird case. PRE iterates insertion for this case for example. Richard. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37242
