Optimize same value assigned to pointers

https://godbolt.org/z/9xfPcneh4

```c++
int set(unsigned int* num1, unsigned int* num2, const unsigned int value) {
*num1 = value;
*num2 = value;

return *num1 + *num2;
}
```

compiler does not recognize, that result can be calculated without reading values from pointers