------- Comment #8 from pinskia at gmail dot com 2009-03-16 08:28 ------- Subject: Re: [4.3/4.4 Regression] ICE : in compare_values_warnv, at tree-vrp.c:1073
Sent from my iPhone On Mar 16, 2009, at 1:15 AM, "jakub at gcc dot gnu dot org" <gcc-bugzi...@gcc.gnu.org > wrote: > > > ------- Comment #7 from jakub at gcc dot gnu dot org 2009-03-16 > 08:15 ------- > Reduced testcase: > > /* { dg-do compile } */ > /* { dg-options "-O2 -fprefetch-loop-arrays" } */ > > void > foo (char *x, unsigned long y, unsigned char *z) > { > unsigned int c[256], *d; > > for (d = c + 1; d < c + 256; ++d) > *d += d[-1]; > x[--c[z[y]]] = 0; Hmm. Could this be the char-- bug? Where the front-end/gimplifier does not promote that to int? Thanks, Andrew Pinski > > } > > > -- > > > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39455 > -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39455