------- Comment #5 from rguenth at gcc dot gnu dot org 2008-03-18 17:24 ------- Subject: Bug 35593
Author: rguenth Date: Tue Mar 18 17:23:35 2008 New Revision: 133318 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=133318 Log: 2008-03-18 Richard Guenther <[EMAIL PROTECTED]> Backport from mainline: 2008-03-15 Richard Guenther <[EMAIL PROTECTED]> PR middle-end/35593 * tree-ssa-ccp.c (maybe_fold_offset_to_array_ref): Make sure to not produce negative array indices if not allowed. Add parameter to indicate that. (maybe_fold_offset_to_component_ref): Allow negative array indices only for the first member of a structure. (maybe_fold_offset_to_reference): Allow negative array indices. (maybe_fold_stmt_addition): Likewise. * g++.dg/warn/Warray-bounds-3.C: New testcase. Added: branches/gcc-4_3-branch/gcc/testsuite/g++.dg/warn/Warray-bounds-3.C - copied unchanged from r133249, trunk/gcc/testsuite/g++.dg/warn/Warray-bounds-3.C Modified: branches/gcc-4_3-branch/gcc/ChangeLog branches/gcc-4_3-branch/gcc/testsuite/ChangeLog branches/gcc-4_3-branch/gcc/tree-ssa-ccp.c -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35593
