https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92347
Bug ID: 92347
Summary: [10 Regression] ICE in vect_get_vec_def_for_operand_1,
at tree-vect-stmts.c:1537
Product: gcc
Version: 10.0
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-unknown-linux-gnu
gcc-10.0.0-alpha20191103 snapshot (r277758) ICEs when compiling the following
testcase reduced from libgomp/testsuite/libgomp.c/examples-4/simd-2.c w/ -mavx
-O1 -fopenmp:
int by;
#pragma omp declare simd
int
zp (int);
void
qh (int oh)
{
#pragma omp simd
for (by = 0; by < oh; ++by)
by = zp (by);
}
% x86_64-unknown-linux-gnu-gcc-10.0.0-alpha20191103 -mavx -O1 -fopenmp -c
m63qbxe6.c
during GIMPLE pass: vect
m63qbxe6.c: In function 'qh':
m63qbxe6.c:8:1: internal compiler error: in vect_get_vec_def_for_operand_1, at
tree-vect-stmts.c:1537
8 | qh (int oh)
| ^~
0x6b66f8 vect_get_vec_def_for_operand_1(_stmt_vec_info*, vect_def_type)
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191103/work/gcc-10-20191103/gcc/tree-vect-stmts.c:1537
0xe901c5 vectorizable_live_operation(_stmt_vec_info*, gimple_stmt_iterator*,
_slp_tree*, _slp_instance*, int, bool, vec<stmt_info_for_cost, va_heap,
vl_ptr>*)
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191103/work/gcc-10-20191103/gcc/tree-vect-loop.c:7692
0xe5dde0 can_vectorize_live_stmts
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191103/work/gcc-10-20191103/gcc/tree-vect-stmts.c:10612
0xe5dde0 can_vectorize_live_stmts
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191103/work/gcc-10-20191103/gcc/tree-vect-stmts.c:10593
0xe7e33c vect_transform_stmt(_stmt_vec_info*, gimple_stmt_iterator*,
_slp_tree*, _slp_instance*)
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191103/work/gcc-10-20191103/gcc/tree-vect-stmts.c:11064
0xe81269 vect_transform_loop_stmt
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191103/work/gcc-10-20191103/gcc/tree-vect-loop.c:8008
0xe946c6 vect_transform_loop(_loop_vec_info*)
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191103/work/gcc-10-20191103/gcc/tree-vect-loop.c:8410
0xeadae0 try_vectorize_loop_1
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191103/work/gcc-10-20191103/gcc/tree-vectorizer.c:990
0xeadd2b try_vectorize_loop_1
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191103/work/gcc-10-20191103/gcc/tree-vectorizer.c:1027
0xeae6ed vectorize_loops()
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20191103/work/gcc-10-20191103/gcc/tree-vectorizer.c:1127
