[Bug rtl-optimization/46777] [4.5 Regression] ICE: in rtl_verify_flow_info, at cfgrtl.c:2164 with -O -fgcse -fno-tree-dominator-opts -funroll-loops

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46777

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> 2010-12-07 15:30:52 UTC ---
Author: jakub
Date: Tue Dec  7 15:30:47 2010
New Revision: 167550

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=167550
Log:
    Backport from mainline
    2010-12-06  Jakub Jelinek  <jakub@redhat.com>

    PR rtl-optimization/46777
    * cfglayout.c (duplicate_insn_chain): Avoid duplicating
    also barrier after tablejump.

    * gcc.dg/pr46777.c: New test.

Added:
    branches/gcc-4_5-branch/gcc/testsuite/gcc.dg/pr46777.c
Modified:
    branches/gcc-4_5-branch/gcc/ChangeLog
    branches/gcc-4_5-branch/gcc/cfglayout.c
    branches/gcc-4_5-branch/gcc/testsuite/ChangeLog