https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93964
Bug ID: 93964
Summary: [8/9/10 Regression] [graphite] ICE in
assign_parameter_index_in_region, at
graphite-scop-detection.c:1104
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Keywords: ice-on-invalid-code
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: asolokha at gmx dot com
Target Milestone: ---
gcc-10.0.1 snapshot (g:3133bed5d0327e8a9cd0a601b7ecdb9de4fc825d) ICEs when
compiling the following testcase w/ -O1 -floop-nest-optimize:
int *
eo (void);
void
g4 (int *nt)
{
int dh, t2 = eo ();
for (dh = 0; dh < 2; ++dh)
{
int m7;
for (m7 = 0; m7 < t2; ++m7)
nt[m7] = 0;
}
}
% gcc-10.0.1 -O1 -floop-nest-optimize -w -c xerbsq4o.c
during GIMPLE pass: graphite
xerbsq4o.c: In function 'g4':
xerbsq4o.c:5:1: internal compiler error: in assign_parameter_index_in_region,
at graphite-scop-detection.c:1104
5 | g4 (int *nt)
| ^~
0x77656b assign_parameter_index_in_region
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200223/work/gcc-10-20200223/gcc/graphite-scop-detection.c:1104
0x77656b scan_tree_for_params
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200223/work/gcc-10-20200223/gcc/graphite-scop-detection.c:1155
0x16bc2f6 scan_tree_for_params
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200223/work/gcc-10-20200223/gcc/graphite-scop-detection.c:1143
0x16bfd19 before_dom_children
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200223/work/gcc-10-20200223/gcc/graphite-scop-detection.c:1497
0x16632b7 dom_walker::walk(basic_block_def*)
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200223/work/gcc-10-20200223/gcc/domwalk.c:309
0x16c0a7a build_scops(vec<scop*, va_heap, vl_ptr>*)
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200223/work/gcc-10-20200223/gcc/graphite-scop-detection.c:1620
0x16b3b24 graphite_transform_loops()
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200223/work/gcc-10-20200223/gcc/graphite.c:448
0x16b4f40 graphite_transforms
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200223/work/gcc-10-20200223/gcc/graphite.c:538
0x16b4f40 execute
/var/tmp/portage/sys-devel/gcc-10.0.1_alpha20200223/work/gcc-10-20200223/gcc/graphite.c:615
