[Bug c/81840] Incorrect warning issued in arm-to-x86_64 cross compilation

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81840

--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Martin Sebor from comment #1)
> I don't see this with trunk (GCC 8.0) configured for the same target.  The

Was it fixed or did it become latent on trunk?

> warning tends to be sensitive to char (and short) conversions because of
> limitations in its integration with the Value Range Propagation pass.  It's
> possible that changes to it or to other areas have improved the quality of
> the range info to avoid the warning.  To avoid these false positives it's
> best to use the length modifier most appropriate for the type of the
> argument.  I.e., in the gas source, use the %hhx directive like so:
> 
>     snprintf (output_invalid_buf, sizeof (output_invalid_buf),
>        "(0x%hhx)", (unsigned char) c);

Does it work with all OSes and compilers binutils support?