[Bug middle-end/109267] generates empty functions with .cfi_startproc/.cfi_endproc that conflict with other functions

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109267

--- Comment #11 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
```
proc check_effective_target_trap { } {
    return [check_no_messages_and_pattern trap "!\\(call" rtl-expand {
        void foo ()
          {
            return __builtin_trap ();
          }
    } "" ]
}
```

I think is what I need to detect if the target supports a trap instruction or
expands to abort for __builtin_trap.