https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115641
Bug ID: 115641
Summary: GCC crashes on function has attribute
`__attribute__((const))`
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: 141242068 at smail dot nju.edu.cn
Target Milestone: ---
Compiler Explorer: https://gcc.godbolt.org/z/79oo9rsxj
When compiling this with `gcc-trunk -O2`, gcc crashes.
This only occurs in trunk version, older versions like gcc-{12,13,14} are
tested to be normal.
```
#include <stdlib.h>
typedef struct {
char hours, day, month;
short year;
} T;
T g (void) {
T now;
now.hours = 1;
now.day = 2;
now.month = 3;
now.year = 4;
return now;
}
__attribute__((const)) T f (void)
{
T virk = g ();
return virk;
}
int main ()
{
if (f ().hours != 1 || f ().day != 2 || f ().month != 3 || f ().year != 4)
abort ();
return 0;
}
```
