GCC does not fail at -O0 when -fgraphite is used and support for graphite is not built in the compiler.
Created attachment 16236 [details] fix This patch fixes the bug.
Subject: Bug 37388 Author: spop Date: Wed Sep 10 14:46:35 2008 New Revision: 140232 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=140232 Log: 2008-09-10 Sebastian Pop <sebastian.pop@amd.com> PR tree-optimization/37388 * toplev.c (process_options): Fail and warn when graphite flags are used, but the compiler has not been configured with graphite libraries. * graphite.c (graphite_transform_loops): Remove printfs to dump_file for the case when graphite is not available. Modified: trunk/gcc/ChangeLog trunk/gcc/graphite.c trunk/gcc/toplev.c
Fixed.