http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58279
--- Comment #2 from Stupachenko Evgeny <evstupac at gmail dot com> --- I can't share CoreMark sources. However, you can get them at www.coremark.org when accept the license. The error caused by edge->count of new edges which is grater than max_count: (line 902) gcc_assert (max_count >= edge->count); The new edge is generated in case of indirect inline: (line 1517) if (flag_indirect_inlining) new_indirect_edges.create (8); and does not participate in max_count calculation, but refers to it when adding to a heap: (lines 1724 and 1761) if (flag_indirect_inlining) add_new_edges_to_heap (edge_heap, new_indirect_edges); Updating max_count with new_edges counts resolves the ICE.