[Bug rtl-optimization/48721] [4.6 Regression] ICE: verify_flow_info failed: missing barrier after block 6 with -foptimize-sibling-calls -fsched2-use-superblocks

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48721

--- Comment #13 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-12-08 
13:34:02 UTC ---
Author: jakub
Date: Thu Dec  8 13:33:58 2011
New Revision: 182111

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=182111
Log:
    Backport from mainline
    2011-11-30  Jakub Jelinek  <ja...@redhat.com>

    PR rtl-optimization/48721
    * sched-deps.c (sched_analyze_insn): For SIBLING_CALL_P set
    reg_pending_barrier to TRUE_BARRIER.

    * gcc.target/i386/pr48721.c: New test.

Added:
    branches/gcc-4_6-branch/gcc/testsuite/gcc.target/i386/pr48721.c
Modified:
    branches/gcc-4_6-branch/gcc/ChangeLog
    branches/gcc-4_6-branch/gcc/sched-deps.c
    branches/gcc-4_6-branch/gcc/testsuite/ChangeLog