[Bug target/119408] LoongArch: Q Suffix for __float128 Literals Not Supported

[xry111 at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119408

Xi Ruoyao <xry111 at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2025-03-21
             Status|UNCONFIRMED                 |NEW

--- Comment #4 from Xi Ruoyao <xry111 at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #1)
> Q is an extension, 1.11111f128 should work.  The extension is enabled only
> for some platforms.

The reason is we already added __float128 for "compatibility with existing
code" so it makes sense to add Q as well.  And we have "use a suffix ‘q’ or ‘Q’
for
‘__float128’" in https://gcc.gnu.org/onlinedocs/gcc/Floating-Types.html, to me
it implies if __float128 is supported, q and Q should be supported too.