https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91010
Bug ID: 91010
Summary: ICE: Segmentation fault (in location_wrapper_p)
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-pc-linux-gnu
g++-10.0.0-alpha20190623 snapshot (r272608) ICEs when compiling the following
testcase reduced from gcc/testsuite/g++.dg/vect/simd-5.cc at any optimization
level except -Og and w/ -fopenmp -fno-tree-forwprop:
struct ug {
ug &
operator= (const ug &je)
{
gj = je.gj;
return *this;
}
int gj;
};
#pragma omp declare reduction (+ : ug : omp_out.gj += omp_in.gj)
void
i0 (ug &hf)
{
int mv;
#pragma omp simd reduction (inscan, + : hf)
for (mv = 0; mv < 2; ++mv)
{
;
#pragma omp scan inclusive (hf)
;
}
}
% x86_64-pc-linux-gnu-g++-10.0.0-alpha20190623 -O1 -fopenmp -fno-tree-forwprop
-c arijcgdh.cc
during GIMPLE pass: vect
arijcgdh.cc: In function 'void i0(ug&)':
arijcgdh.cc:14:1: internal compiler error: Segmentation fault
14 | i0 (ug &hf)
| ^~
0xf6b3e8 crash_signal
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20190623/work/gcc-10-20190623/gcc/toplev.c:326
0xc72515 location_wrapper_p(tree_node const*)
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20190623/work/gcc-10-20190623/gcc/tree.h:3845
0xc72515 tree_strip_any_location_wrapper(tree_node*)
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20190623/work/gcc-10-20190623/gcc/tree.h:3857
0xc72515 operand_equal_p(tree_node const*, tree_node const*, unsigned int)
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20190623/work/gcc-10-20190623/gcc/fold-const.c:2967
0xc746b1 operand_equal_p(tree_node const*, tree_node const*, unsigned int)
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20190623/work/gcc-10-20190623/gcc/fold-const.c:2950
0x118e6e7 scan_operand_equal_p
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20190623/work/gcc-10-20190623/gcc/tree-vect-stmts.c:6351
0x11af386 check_scan_store
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20190623/work/gcc-10-20190623/gcc/tree-vect-stmts.c:6734
0x11af386 vectorizable_store
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20190623/work/gcc-10-20190623/gcc/tree-vect-stmts.c:7315
0x11b0115 vect_analyze_stmt(_stmt_vec_info*, bool*, _slp_tree*, _slp_instance*,
vec<stmt_info_for_cost, va_heap, vl_ptr>*)
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20190623/work/gcc-10-20190623/gcc/tree-vect-stmts.c:10566
0x11c9182 vect_analyze_loop_operations
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20190623/work/gcc-10-20190623/gcc/tree-vect-loop.c:1631
0x11c9182 vect_analyze_loop_2
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20190623/work/gcc-10-20190623/gcc/tree-vect-loop.c:2077
0x11c9182 vect_analyze_loop(loop*, _loop_vec_info*, vec_info_shared*)
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20190623/work/gcc-10-20190623/gcc/tree-vect-loop.c:2380
0x11e39e5 try_vectorize_loop_1
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20190623/work/gcc-10-20190623/gcc/tree-vectorizer.c:886
0x11e468f vectorize_loops()
/var/tmp/portage/sys-devel/gcc-10.0.0_alpha20190623/work/gcc-10-20190623/gcc/tree-vectorizer.c:1114
