https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115350
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Ever confirmed|0 |1
Last reconfirmed| |2024-06-05
Status|UNCONFIRMED |NEW
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
What is more interesting is the order of evulation of the function arguments
make a huge difference.
Testcase:
```
unsigned short n;
#include <algorithm>
void fn1( unsigned short f, unsigned char a) {
auto t1 = -a;
auto t = f ? 0 : 3;
n = std::min(t, t1); // equals to "n = -a"
}
void fn2( unsigned short f, unsigned char a) {
auto t = f ? 0 : 3;
auto t1 = -a;
n = std::min(t, t1); // equals to "n = -a"
}
```
fn2 works while f1 does not.
fn2 used to be only optimized at the rtl level too ..
