http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55158
Steven Bosscher <steven at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2012-11-07
Ever Confirmed|0 |1
--- Comment #4 from Steven Bosscher <steven at gcc dot gnu.org> 2012-11-07
21:07:44 UTC ---
Confirmed. The scheduler creates new basic blocks via generate_recovery_code,
leading to:
Breakpoint 5, schedule_region (rgn=0) at gcc/sched-rgn.c:2990
2990 schedule_block (&curr_bb, bb_state[first_bb->index]);
1: last_basic_block = 23
(gdb)
Continuing.
Breakpoint 6, create_basic_block (...) at gcc/cfghooks.c:644
644 if (!cfg_hooks->create_basic_block)
1: last_basic_block = 23
(gdb) up
#1 0x... in create_empty_bb (..) at ../../trunk/gcc/cfghooks.c:662
662 return create_basic_block (NULL, NULL, after);
(gdb)
#2 0x... in sched_create_empty_bb_1 (...) at gcc/haifa-sched.c:8479
8479 return create_empty_bb (after);
(gdb)
#3 0x... in init_before_recovery (...) at gcc/haifa-sched.c:7491
7491 single = sched_create_empty_bb (last);
(gdb)
But apparently some of the scheduler data structures are not resized.
