https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102492
Bug ID: 102492
Summary: [12 Regression] ICE in scan_sharing_clauses, at
omp-low.c:1205
Product: gcc
Version: 12.0
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: ---
Created attachment 51510
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51510&action=edit
Testcase
g++-12.0.0-alpha20210919 snapshot (g:32731fa5b0abf092029b8e2be64319b978bda514)
ICEs when compiling the attached testcase, partially reduced from
libstdc++-v3/testsuite/26_numerics/pstl/numeric_ops/reduce.cc, w/ -fopenmp:
% g++-12.0.0 -fopenmp -c vksbmhow.cc
vksbmhow.cc: In function 'void __simd_transform_reduce(_Size, _Tp,
_BinaryOperation) [with _Size = int; _Tp = Number; _BinaryOperation = int]':
vksbmhow.cc:25:9: error: no matching function for call to 'Number::Number()'
25 | #pragma omp simd
| ^~~
vksbmhow.cc:2:3: note: candidate: 'Number::Number(int)'
2 | Number(int);
| ^~~~~~
vksbmhow.cc:2:3: note: candidate expects 1 argument, 0 provided
vksbmhow.cc:1:8: note: candidate: 'constexpr Number::Number(const Number&)'
1 | struct Number {
| ^~~~~~
vksbmhow.cc:1:8: note: candidate expects 1 argument, 0 provided
vksbmhow.cc:1:8: note: candidate: 'constexpr Number::Number(Number&&)'
vksbmhow.cc:1:8: note: candidate expects 1 argument, 0 provided
during GIMPLE pass: omplower
vksbmhow.cc:25:9: internal compiler error: in scan_sharing_clauses, at
omp-low.c:1205
25 | #pragma omp simd
| ^~~
0x7c90d0 scan_sharing_clauses
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210919/work/gcc-12-20210919/gcc/omp-low.c:1205
0x1014514 scan_omp_for
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210919/work/gcc-12-20210919/gcc/omp-low.c:2820
0x1015c00 scan_omp_1_stmt
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210919/work/gcc-12-20210919/gcc/omp-low.c:4137
0xe7deea walk_gimple_stmt(gimple_stmt_iterator*, tree_node*
(*)(gimple_stmt_iterator*, bool*, walk_stmt_info*), tree_node* (*)(tree_node**,
int*, void*), walk_stmt_info*)
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210919/work/gcc-12-20210919/gcc/gimple-walk.c:602
0xe7e120 walk_gimple_seq_mod(gimple**, tree_node* (*)(gimple_stmt_iterator*,
bool*, walk_stmt_info*), tree_node* (*)(tree_node**, int*, void*),
walk_stmt_info*)
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210919/work/gcc-12-20210919/gcc/gimple-walk.c:51
0xe7dfd5 walk_gimple_stmt(gimple_stmt_iterator*, tree_node*
(*)(gimple_stmt_iterator*, bool*, walk_stmt_info*), tree_node* (*)(tree_node**,
int*, void*), walk_stmt_info*)
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210919/work/gcc-12-20210919/gcc/gimple-walk.c:711
0xe7e120 walk_gimple_seq_mod(gimple**, tree_node* (*)(gimple_stmt_iterator*,
bool*, walk_stmt_info*), tree_node* (*)(tree_node**, int*, void*),
walk_stmt_info*)
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210919/work/gcc-12-20210919/gcc/gimple-walk.c:51
0xe7dfd5 walk_gimple_stmt(gimple_stmt_iterator*, tree_node*
(*)(gimple_stmt_iterator*, bool*, walk_stmt_info*), tree_node* (*)(tree_node**,
int*, void*), walk_stmt_info*)
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210919/work/gcc-12-20210919/gcc/gimple-walk.c:711
0xe7e120 walk_gimple_seq_mod(gimple**, tree_node* (*)(gimple_stmt_iterator*,
bool*, walk_stmt_info*), tree_node* (*)(tree_node**, int*, void*),
walk_stmt_info*)
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210919/work/gcc-12-20210919/gcc/gimple-walk.c:51
0x10213e5 scan_omp
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210919/work/gcc-12-20210919/gcc/omp-low.c:4241
0x10213e5 execute_lower_omp
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210919/work/gcc-12-20210919/gcc/omp-low.c:14292
0x10213e5 execute
/var/tmp/portage/sys-devel/gcc-12.0.0_alpha20210919/work/gcc-12-20210919/gcc/omp-low.c:14350
