https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114290
Bug ID: 114290
Summary: GCC output incorrect output with -O2
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: jlame646 at gmail dot com
Target Milestone: ---
The following program gives wrong output `0` with `-O2` for input `2`. When
`f(1,1)` is commented out(or removed) it produces correct output.
https://godbolt.org/z/3rxah7Grx
```
#include <cstdio>
#include <iostream>
struct Node {
int x;
};
Node f(int A, int B) {
if (A < 0) return {0};
return {A / B + (A % B != 0)};
}
Node g(int C, int D) {
if (C > 0) return {0};
return {C / D + (C % D != 0)};
}
int main() {
int n;
std::cin >> n;
f(1, 1); //commenting this line fixes the issue
Node t = g(-1, n);
std::cout << t.x;
}
```
