https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87898
Bug ID: 87898
Summary: [8/9 Regression] ICE in
separate_decls_in_region_debug, at tree-parloops.c:961
Product: gcc
Version: 8.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code, openmp
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: asolokha at gmx dot com
Target Milestone: ---
Target: x86_64-pc-linux-gnu
gcc-9.0.0-alpha20181104 snapshot (r265779) ICEs when compiling the following
snippet w/ -O1 -floop-parallelize-all -fopenmp -ftree-parallelize-loops=2
-fvar-tracking-assignments:
#pragma omp declare simd
void
h0 (int re)
{
re = 0;
}
% x86_64-pc-linux-gnu-gcc-9.0.0-alpha20181104 -O1 -floop-parallelize-all
-fopenmp -ftree-parallelize-loops=2 -fvar-tracking-assignments -c i5qefyvy.c
during GIMPLE pass: parloops
i5qefyvy.c: In function 'h0.simdclone.0':
i5qefyvy.c:3:1: internal compiler error: in separate_decls_in_region_debug, at
tree-parloops.c:961
3 | h0 (int re)
| ^~
0xd7d8c7 separate_decls_in_region_debug
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181104/work/gcc-9-20181104/gcc/tree-parloops.c:961
0xd7d8c7 separate_decls_in_region
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181104/work/gcc-9-20181104/gcc/tree-parloops.c:1378
0xd7eb3b gen_parallel_loop
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181104/work/gcc-9-20181104/gcc/tree-parloops.c:2455
0xd80a3b parallelize_loops
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181104/work/gcc-9-20181104/gcc/tree-parloops.c:3417
0xd81c2d execute
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181104/work/gcc-9-20181104/gcc/tree-parloops.c:3499
0xd81c2d execute
/var/tmp/portage/sys-devel/gcc-9.0.0_alpha20181104/work/gcc-9-20181104/gcc/tree-parloops.c:3478
