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2008-03-15 Richard Guenther <rguenther@suse.de> 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. From-SVN: r133249
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