https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98213
Bug ID: 98213
Summary: [11 Regression] Never ending compilation at -O3 since
r11-161-g283cb9ea6293e813
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Keywords: compile-time-hog
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
CC: rguenth at gcc dot gnu.org
Target Milestone: ---
Since the revision, the following code does not terminate. The test-case was
given by yarpgen:
$ cat func.cpp
long var_23;
int var_24, test_var_8;
extern bool arr_20[][13];
char arr_21_0_0_0_0_0;
#include <algorithm>
int *test_arr_0;
void test(unsigned long long var_1) {
int arr_16;
for (int i_0 = 0;;)
for (int i_5; i_5;) {
for (int i_6 = 0; i_6 < 19; i_6 += 4)
for (long i_7(test_var_8); i_7; i_7 += 2) {
arr_20[0][i_7] = arr_21_0_0_0_0_0 = 0;
var_23 = test_arr_0[0];
}
var_24 = std::max((unsigned long long)arr_16,
std::min((unsigned long long)5, var_1));
}
}
$ timeout 10 g++ -O3 func.cpp -c
$ echo $?
124
