[Bug tree-optimization/128269] wrong code at -O1 and above: snprintf "%lc" with a wint_t in [0, 200] is assumed not to return a negative value

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=128269

Sam James <sjames at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |sjames at gcc dot gnu.org

--- Comment #1 from Sam James <sjames at gcc dot gnu.org> ---
This is an interesting one! Unlike vectorisation, I don't think it makes sense
to have any runtime check here (plus checking the locale is way more
expensive). We should just punt on large input.