http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52943
--- Comment #3 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-04-12 11:39:12 UTC --- Author: rguenth Date: Thu Apr 12 11:38:47 2012 New Revision: 186374 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=186374 Log: 2012-04-12 Richard Guenther <rguent...@suse.de> PR tree-optimization/52943 * tree-chrec.h (chrec_is_positive): Remove. * tree-scalar-evolution.c (chrec_is_positive): Move ... * tree-data-ref.c (chrec_is_positive): ... here. Make static. Return false for a constant zero instead of negative. (analyze_siv_subscript_cst_affine): Handle zero difference in the initial condition explicitely. * gcc.dg/torture/pr52943.c: New testcase. Added: trunk/gcc/testsuite/gcc.dg/torture/pr52943.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-chrec.h trunk/gcc/tree-data-ref.c trunk/gcc/tree-scalar-evolution.c
