[Bug tree-optimization/82525] [GRAPHITE] codegen error for modulo operations we cannot represent

[rguenth at gcc dot gnu.org]

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  <rguenther@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