[Bug rtl-optimization/46522] ICE: in reset_sched_cycles_in_current_ebb, at sel-sched.c:7092 with -O3 -fsel-sched-pipelining -fselective-scheduling2 -funroll-loops

[abel at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46522

--- Comment #4 from Andrey Belevantsev <abel at gcc dot gnu.org> 2010-12-22 07:46:57 UTC ---
Author: abel
Date: Wed Dec 22 07:46:53 2010
New Revision: 168164

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=168164
Log:
    PR rtl-optimization/45352
    PR rtl-optimization/46521
    PR rtl-optimization/46522
    * sel-sched.c (reset_sched_cycles_in_current_ebb): Recheck the DFA state
    on the last iteration of the advancing loop.
    (sel_sched_region_1): Propagate the rescheduling bit to the next block
    also for empty blocks.

    * gcc.dg/pr46521.c: New.
    * gcc.dg/pr46522.c: New. 

Added:
    trunk/gcc/testsuite/gcc.dg/pr46521.c
    trunk/gcc/testsuite/gcc.dg/pr46522.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/sel-sched.c
    trunk/gcc/testsuite/ChangeLog