https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68182
--- Comment #4 from Segher Boessenkool <segher at gcc dot gnu.org> --- Author: segher Date: Mon Nov 9 03:57:19 2015 New Revision: 229983 URL: https://gcc.gnu.org/viewcvs?rev=229983&root=gcc&view=rev Log: Fix bb-reorder problem with degenerate cond_jump (PR68182) The code mistakenly thinks any cond_jump has two successors. This is not true if both destinations are the same, as can happen with weird patterns as in the PR. PR rtl-optimization/68182 * gcc/bb-reorder.c (reorder_basic_blocks_simple): Treat a conditional branch with only one successor just like unconditional branches. Modified: trunk/gcc/ChangeLog trunk/gcc/bb-reorder.c
