[Bug rtl-optimization/48721] [4.6/4.7 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 #11 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-11-30 
18:58:36 UTC ---
Author: jakub
Date: Wed Nov 30 18:58:33 2011
New Revision: 181856

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=181856
Log:
    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:
    trunk/gcc/testsuite/gcc.target/i386/pr48721.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/sched-deps.c
    trunk/gcc/testsuite/ChangeLog