https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87200
Bug ID: 87200
Summary: [9 Regression] ICE in set_ssa_val_to, at
tree-ssa-sccvn.c:3629
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: asolokha at gmx dot com
Target Milestone: ---
gcc-9.0.0-alpha20180902 snapshot (r264045) ICEs when compiling the following
snippet w/ any optimization level:
unsigned long long int ry;
int
gl (void)
{
long long int my = 0;
unsigned long long int *oi = (unsigned long long int *) &my;
int s9;
s9 = !!gl () ? ry : 0;
if (s9 != 0)
oi = &ry;
else
{
my = ry;
*oi += my;
}
return *oi;
}
% gcc-9.0.0-alpha20180902 -O1 -c piukefl9.c
during GIMPLE pass: fre
piukefl9.c: In function 'gl':
piukefl9.c:20:1: internal compiler error: in set_ssa_val_to, at
tree-ssa-sccvn.c:3629
20 | }
| ^
0x69bc1b set_ssa_val_to
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20180902/work/gcc-9-20180902/gcc/tree-ssa-sccvn.c:3629
0xe61819 visit_reference_op_load
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20180902/work/gcc-9-20180902/gcc/tree-ssa-sccvn.c:3985
0xe61819 visit_stmt
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20180902/work/gcc-9-20180902/gcc/tree-ssa-sccvn.c:4359
0xe630ac process_bb
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20180902/work/gcc-9-20180902/gcc/tree-ssa-sccvn.c:5980
0xe64468 do_rpo_vn
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20180902/work/gcc-9-20180902/gcc/tree-ssa-sccvn.c:6406
0xe651cc execute
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20180902/work/gcc-9-20180902/gcc/tree-ssa-sccvn.c:6598
