[Bug target/43603] gcc-4.4.3 ICE on ia64 with -O3

[abel at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43603

--- Comment #8 from Andrey Belevantsev <abel at gcc dot gnu.org> 2010-12-08 
13:56:00 UTC ---
Author: abel
Date: Wed Dec  8 13:55:57 2010
New Revision: 167588

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=167588
Log:
        PR target/43603
        * haifa-sched.c (sched_create_recovery_edges): Update
        dominator info.
        * sel-sched-ir.c (maybe_tidy_empty_bb): Update dominator info
        after deleting an empty block.
        (tidy_control_flow): Also verify dominators.
        (sel_remove_bb): Update dominator info after removing a block.
        (sel_redirect_edge_and_branch_force): Assert that no unreachable
        blocks will be created. Update dominator info.
        (sel_redirect_edge_and_branch): Update dominator info when
        basic blocks do not become unreachable.
        (sel_remove_loop_preheader): Update dominator info.


Added:
    trunk/gcc/testsuite/g++.dg/opt/pr46640.C
    trunk/gcc/testsuite/gcc.target/ia64/pr43603.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/haifa-sched.c
    trunk/gcc/sel-sched-ir.c
    trunk/gcc/testsuite/ChangeLog