http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53676
--- Comment #8 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-06-27 11:32:34 UTC --- Author: rguenth Date: Wed Jun 27 11:32:30 2012 New Revision: 189013 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=189013 Log: 2012-06-27 Richard Guenther <rguent...@suse.de> PR middle-end/53676 * tree-chrec.c (chrec_convert_1): Represent truncation to a type with undefined overflow as truncation to an unsigned type converted to the type with undefined overflow. * tree-scalar-evolution.c (interpret_rhs_expr): For computing the scalar evolution of a truncated widened operation avoid looking at the non-existing evolution of the widened operation result. * gcc.dg/tree-ssa/scev-6.c: New testcase. Added: trunk/gcc/testsuite/gcc.dg/tree-ssa/scev-6.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-chrec.c trunk/gcc/tree-scalar-evolution.c
