https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86928
Bug ID: 86928
Summary: ICE in compute_live, at sel-sched.c:3097
Product: gcc
Version: unknown
Status: UNCONFIRMED
Keywords: ice-on-invalid-code
Severity: normal
Priority: P3
Component: rtl-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: asolokha at gmx dot com
Target Milestone: ---
Target: powerpc-*-linux-gnu, powerpcspe-*-linux-gnu
gcc-9.0.0-alpha20180805 snapshot (r263320) ICEs when compiling the following
snippet w/ -O2 (-O3, -Ofast) -fnon-call-exceptions -fsel-sched-pipelining
-fsel-sched-pipelining-outer-loops -fselective-scheduling -fno-if-conversion
-fno-tree-dce:
int kn;
void
gd (short int sk)
{
char *as;
while (sk < 1)
{
char *ci;
if (*ci == 0)
*as += ci;
for (kn = 0; kn < 18; ++kn)
{
}
++sk;
}
}
% powerpc-e300c3-linux-gnu-gcc-9.0.0-alpha20180805 -O2 -fnon-call-exceptions
-fsel-sched-pipelining -fsel-sched-pipelining-outer-loops
-fselective-scheduling -fno-if-conversion -fno-tree-dce -w -c opsr9okd.c
during RTL pass: sched1
opsr9okd.c: In function 'gd':
opsr9okd.c:21:1: internal compiler error: in compute_live, at sel-sched.c:3097
}
^
0xbe0aa2 compute_live(rtx_insn*)
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-9.0.0_alpha20180805/work/gcc-9-20180805/gcc/sel-sched.c:3097
0xbe0938 compute_live_after_bb
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-9.0.0_alpha20180805/work/gcc-9-20180805/gcc/sel-sched.c:3074
0xbe0938 compute_live(rtx_insn*)
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-9.0.0_alpha20180805/work/gcc-9-20180805/gcc/sel-sched.c:3131
0xbe4058 code_motion_path_driver
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-9.0.0_alpha20180805/work/gcc-9-20180805/gcc/sel-sched.c:6660
0xbe524d move_op
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-9.0.0_alpha20180805/work/gcc-9-20180805/gcc/sel-sched.c:6714
0xbe524d move_exprs_to_boundary
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-9.0.0_alpha20180805/work/gcc-9-20180805/gcc/sel-sched.c:5237
0xbe524d schedule_expr_on_boundary
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-9.0.0_alpha20180805/work/gcc-9-20180805/gcc/sel-sched.c:5450
0xbe92a8 fill_insns
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-9.0.0_alpha20180805/work/gcc-9-20180805/gcc/sel-sched.c:5592
0xbeb0de schedule_on_fences
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-9.0.0_alpha20180805/work/gcc-9-20180805/gcc/sel-sched.c:7366
0xbeb0de sel_sched_region_2
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-9.0.0_alpha20180805/work/gcc-9-20180805/gcc/sel-sched.c:7504
0xbec142 sel_sched_region_1
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-9.0.0_alpha20180805/work/gcc-9-20180805/gcc/sel-sched.c:7546
0xbed735 sel_sched_region(int)
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-9.0.0_alpha20180805/work/gcc-9-20180805/gcc/sel-sched.c:7647
0xbee079 run_selective_scheduling()
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-9.0.0_alpha20180805/work/gcc-9-20180805/gcc/sel-sched.c:7733
0xbc5db4 rest_of_handle_sched
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-9.0.0_alpha20180805/work/gcc-9-20180805/gcc/sched-rgn.c:3718
0xbc5db4 execute
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-9.0.0_alpha20180805/work/gcc-9-20180805/gcc/sched-rgn.c:3828
