https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71168
--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Started with r236320:
Author: rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Tue May 17 12:53:30 2016 +0000
2016-05-17 Richard Biener <rguent...@suse.de>
PR tree-optimization/71132
* tree-loop-distribution.c (create_rdg_cd_edges): Pass in loop.
Only add control dependences for blocks in the loop.
(build_rdg): Adjust.
(generate_code_for_partition): Return whether loop should
be destroyed and delay that.
(distribute_loop): Likewise.
(pass_loop_distribution::execute): Record loops to be destroyed
and perform delayed destroying of loops.
* gcc.dg/torture/pr71132.c: New testcase.
Martin
