https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81318
--- Comment #3 from Dmitry G. Dyachenko <dimhen at gmail dot com> ---
r249904 PASS
r249907 FAIL
r250073 FAIL
sounds like
r249907 | hubicka | 2017-07-03 15:42:07 +0300 (Mon, 03 Jul 2017) | 7 lines
Changed paths:
M /trunk/gcc/ChangeLog
M /trunk/gcc/profile-count.h
M /trunk/gcc/tree-cfg.c
M /trunk/gcc/tree-cfgcleanup.c
* tree-cfgcleanup.c (want_merge_blocks_p): New function.
(cleanup_tree_cfg_bb): Use it.
* profile-count.h (profile_count::of_for_merging,
profile_count::merge):
New functions.
* tree-cfg.c (gimple_merge_blocks): Use profile_count::merge.
