[Bug ipa/119376] [15 Regression] musttail does not get dropped after inlining?

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119376

--- Comment #14 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Another one testcase:
```
struct s1 {
        int t;
};
char *f1(int);
char *f2(int a) {
  s1 t;
  asm("":"+m"(t));
  [[clang::musttail]] return f1(a);
}
```
But this is about escapability of t.