[Bug rtl-optimization/59724] [4.9 Regression] ICE : in rtl_verify_bb_layout, at cfgrtl.c

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59724

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Thu Jan  9 07:30:16 2014
New Revision: 206457

URL: http://gcc.gnu.org/viewcvs?rev=206457&root=gcc&view=rev
Log:
    PR rtl-optimization/59724
    * ifcvt.c (cond_exec_process_if_block): Don't call
    flow_find_head_matching_sequence with 0 longest_match.
    * cfgcleanup.c (flow_find_head_matching_sequence): Count even
    non-active insns if !stop_after.
    (try_head_merge_bb): Revert 2014-01-07 changes.

Modified:
    branches/gcc-4_8-branch/gcc/ChangeLog
    branches/gcc-4_8-branch/gcc/cfgcleanup.c
    branches/gcc-4_8-branch/gcc/ifcvt.c