debug_tree was throwing an ICE when I was debugging scan_sharing_clauses in omp-low.c. The problem turned out to be a missing comma. I've applied this fix to gomp-4_0-branch.
Cesar
2014-11-12 Cesar Philippidis <ce...@codesourcery.com> gcc/ * tree.c (omp_clause_code_name): Add missing comma after "_Cilk_for_count_". Index: gcc/tree.c =================================================================== --- gcc/tree.c (revision 217459) +++ gcc/tree.c (working copy) @@ -358,7 +358,7 @@ const char * const omp_clause_code_name[ "sections", "taskgroup", "_simduid_", - "_Cilk_for_count_" + "_Cilk_for_count_", "independent", "worker", "vector",