https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68001
Bug ID: 68001
Summary: [cilkplus] ICE in cp_gimplify_expr, at
cp/cp-gimplify.c:760
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: ryan.burn at gmail dot com
Target Milestone: ---
The below code causes the following ICE
rnburn@localhost ~/test/gcc_cilk $ c++17 -fcilkplus -lcilkrts t.cpp
t.cpp: In function ‘void compute_cilk()’:
t.cpp:21:33: error: ‘do_not_optimize_away’ was not declared in this scope
do_not_optimize_away(v1.data());
^
cc1plus: error: invalid use of ‘_Cilk_spawn’
t.cpp:18:26: error: invalid use of ‘_Cilk_spawn’
auto v1 = cilk_spawn f();
^
t.cpp:18:26: internal compiler error: tree check: expected call_expr or
aggr_init_expr, have target_expr in cp_gimplify_expr, at cp/cp-gimplify.c:760
0xf2508c tree_check_failed(tree_node const*, char const*, int, char const*,
...)
../../gcc/gcc/tree.c:9512
0x7fc015 tree_check2(tree_node*, char const*, int, char const*, tree_code,
tree_code)
../../gcc/gcc/tree.h:2877
0x7fc015 cp_gimplify_expr(tree_node**, gimple_statement_base**,
gimple_statement_base**)
../../gcc/gcc/cp/cp-gimplify.c:760
0xa965c2 gimplify_expr(tree_node**, gimple_statement_base**,
gimple_statement_base**, bool (*)(tree_node*), int)
../../gcc/gcc/gimplify.c:8025
0xaa80b1 gimplify_addr_expr
../../gcc/gcc/gimplify.c:4985
0xa97f09 gimplify_expr(tree_node**, gimple_statement_base**,
gimple_statement_base**, bool (*)(tree_node*), int)
../../gcc/gcc/gimplify.c:8162
0xaa386b gimplify_call_expr
../../gcc/gcc/gimplify.c:2452
0xa97dda gimplify_expr(tree_node**, gimple_statement_base**,
gimple_statement_base**, bool (*)(tree_node*), int)
../../gcc/gcc/gimplify.c:8087
0xa9bb96 gimplify_stmt(tree_node**, gimple_statement_base**)
../../gcc/gcc/gimplify.c:5526
0xa97e58 gimplify_cleanup_point_expr
../../gcc/gcc/gimplify.c:5302
0xa97e58 gimplify_expr(tree_node**, gimple_statement_base**,
gimple_statement_base**, bool (*)(tree_node*), int)
../../gcc/gcc/gimplify.c:8479
0xa9bb96 gimplify_stmt(tree_node**, gimple_statement_base**)
../../gcc/gcc/gimplify.c:5526
0xa993bb gimplify_statement_list
../../gcc/gcc/gimplify.c:1462
0xa993bb gimplify_expr(tree_node**, gimple_statement_base**,
gimple_statement_base**, bool (*)(tree_node*), int)
../../gcc/gcc/gimplify.c:8531
0xa9bb96 gimplify_stmt(tree_node**, gimple_statement_base**)
../../gcc/gcc/gimplify.c:5526
0xa99209 gimplify_and_add(tree_node*, gimple_statement_base**)
../../gcc/gcc/gimplify.c:398
0xa99209 gimplify_expr(tree_node**, gimple_statement_base**,
gimple_statement_base**, bool (*)(tree_node*), int)
../../gcc/gcc/gimplify.c:8453
0xa9bb96 gimplify_stmt(tree_node**, gimple_statement_base**)
../../gcc/gcc/gimplify.c:5526
0xa993bb gimplify_statement_list
../../gcc/gcc/gimplify.c:1462
0xa993bb gimplify_expr(tree_node**, gimple_statement_base**,
gimple_statement_base**, bool (*)(tree_node*), int)
../../gcc/gcc/gimplify.c:8531
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
//////////////////////////////////////////////////////////////
#include <cilk/cilk.h>
#include <cilk/cilk_api.h>
#include <vector>
#include <random>
#include <cmath>
const int N = 100'000'000;
auto f() {
std::vector<double> v(N);
auto rng = std::mt19937{std::random_device{}()};
std::uniform_real_distribution<double> dist(0, 1);
for (int i = 0; i < N; ++i) v[i] = std::log(std::sqrt(dist(rng)));
return v;
}
void compute_cilk() {
auto v1 = cilk_spawn f();
auto v2 = f();
cilk_sync;
do_not_optimize_away(v1.data());
do_not_optimize_away(v2.data());
}
int main() {
compute_cilk();
return 0;
}
//////////////////////////////////////////////////////////////
