https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125642
--- Comment #3 from Drea Pinski <pinskia at gcc dot gnu.org> ---
Confirmed, this has been a bug since _Fract support was added with
r0-83137-g0f996086cbf162. long before loongarch was done.
Simple fix:
```
diff --git a/gcc/c-family/c-cppbuiltin.cc b/gcc/c-family/c-cppbuiltin.cc
index 7296ee8b3ba..900843e8d03 100644
--- a/gcc/c-family/c-cppbuiltin.cc
+++ b/gcc/c-family/c-cppbuiltin.cc
@@ -1378,7 +1378,7 @@ c_cpp_builtins (cpp_reader *pfile)
}
/* For fixed-point fibt, ibit, max, min, and epsilon. */
- if (targetm.fixed_point_supported_p ())
+ if (!c_dialect_cxx () && targetm.fixed_point_supported_p ())
{
builtin_define_fixed_point_constants ("SFRACT", "HR",
short_fract_type_node);
```
This is preapproved if this fixes the issue.
