https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105423
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed|2022-04-29 00:00:00 |2025-09-05
Ever confirmed|0 |1
Status|UNCONFIRMED |WAITING
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I think this was reduced too much.
Because mask._S_copy___d; is not set in the testcase.
So we get:
```
MEM[(struct __as_base &)&mask] ={v} {CLOBBER(bob)};
mask._M_dataplus._M_p = &mask.D.2786._M_local_buf;
if (&mask.D.2786._M_local_buf >= "RC")
goto <bb 3>; [33.00%]
else
goto <bb 5>; [67.00%]
<bb 5> [local count: 719407024]:
goto <bb 4>; [100.00%]
<bb 3> [local count: 354334800]:
_11 = MEM[(char *)&mask + 10B];
_12 = mask._S_copy___d;
```
> default brace-initialized
that is not have C++20 works though. The rules in C++20 changed such that
`std::Trans_NS___cxx11_basic_string<char> mask{};` will call the constructor
with no arguments.
