https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79570
Bug ID: 79570
Summary: [5/6/7 Regression] ICE in sel-sched-ir.c:4534 in
pr69956.c
Product: gcc
Version: unknown
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
Target Milestone: ---
Starting from GCC 4.9.0 I see following ICE:
gcc /home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/pr69956.c -O2
-fselective-scheduling2 -fvar-tracking-assignments
cc1: warning: var-tracking-assignments changes selective scheduling
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/pr69956.c: In function ‘fn1’:
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/pr69956.c:11:1: internal
compiler error: Segmentation fault
}
^
0xa5f34f crash_signal
../../gcc/toplev.c:337
0x7196a0 bb_note(basic_block_def*)
../../gcc/cfgrtl.c:670
0xa20bc9 sel_bb_head(basic_block_def*)
../../gcc/sel-sched-ir.c:4534
0xa2c74b moveup_expr_cached
../../gcc/sel-sched.c:2532
0xa2f5fe move_op_ascend
../../gcc/sel-sched.c:6152
0xa31471 code_motion_path_driver
../../gcc/sel-sched.c:6649
0xa32383 move_op
../../gcc/sel-sched.c:6703
0xa32383 move_exprs_to_boundary
../../gcc/sel-sched.c:5226
0xa32383 schedule_expr_on_boundary
../../gcc/sel-sched.c:5439
0xa35a81 fill_insns
../../gcc/sel-sched.c:5581
0xa35a81 schedule_on_fences
../../gcc/sel-sched.c:7355
0xa35a81 sel_sched_region_2
../../gcc/sel-sched.c:7493
0xa38659 sel_sched_region_1
../../gcc/sel-sched.c:7535
0xa38659 sel_sched_region(int)
../../gcc/sel-sched.c:7636
0xa39041 run_selective_scheduling()
../../gcc/sel-sched.c:7712
0xa18de5 rest_of_handle_sched2
../../gcc/sched-rgn.c:3722
0xa18de5 execute
../../gcc/sched-rgn.c:3866
