------- Comment #21 from sebpop at gmail dot com 2007-06-24 12:50 ------- Subject: Re: [4.3 Regression] Segmentation fault in build_classic_dist_vector_1() at tree-data-ref.c:2700
On 6/24/07, Richard Guenther <[EMAIL PROTECTED]> wrote: > If you use TREE_OPERAND (op0, 0), op1 instead it should work. The > problem seems to be that arg0/arg1 have all NOPs stripped, including > those changing the sign. So we get to compare a and (unsigned)a, > which are obviously not the same. > Right. The attached patch solves the problem. > It looks like most of the users of the arg variants are suspicious in this > regard... > So if I'm correctly understanding, you suppose that there are also other cases in which fold fails just because it uses arg instead of op? Thanks, Sebastian ------- Comment #22 from sebpop at gmail dot com 2007-06-24 12:50 ------- Created an attachment (id=13778) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13778&action=view) -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32461
