https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82525
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> --- Author: rguenth Date: Fri Oct 13 06:59:13 2017 New Revision: 253706 URL: https://gcc.gnu.org/viewcvs?rev=253706&root=gcc&view=rev Log: 2017-10-13 Richard Biener <rguent...@suse.de> PR tree-optimization/82525 * graphite-isl-ast-to-gimple.c (translate_isl_ast_to_gimple::widest_int_from_isl_expr_int): Split out from ... (translate_isl_ast_to_gimple::gcc_expression_from_isl_expr_int): Here. Fail code generation when we cannot represent the isl integer. (binary_op_to_tree): Elide modulo operations that are no-ops in the type we code generate. Remove now superfluous code generation errors. * gcc.dg/graphite/id-30.c: New testcase. * gfortran.dg/graphite/id-28.f90: Likewise. Added: trunk/gcc/testsuite/gcc.dg/graphite/id-30.c trunk/gcc/testsuite/gfortran.dg/graphite/id-28.f90 Modified: trunk/gcc/ChangeLog trunk/gcc/graphite-isl-ast-to-gimple.c trunk/gcc/testsuite/ChangeLog