https://sourceware.org/bugzilla/show_bug.cgi?id=21934
--- Comment #6 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Brett Neumeier from comment #4)
> (In reply to H.J. Lu from comment #3)
> > Here is a small testcase:
> >
> > [hjl@gnu-6 config]$ cat /tmp/p.i
> > static char output_invalid_buf[sizeof (unsigned char) * 2 + 5];
> >
> > char *
> > output_invalid (int c)
> > {
> > __builtin_snprintf (output_invalid_buf, sizeof (output_invalid_buf),
> > "(0x%x)", (unsigned char) c);
> > return output_invalid_buf;
> > }
> > [hjl@gnu-6 config]$ gcc -S -O2 -g -Wall /tmp/p.i -W
> > [hjl@gnu-6 config]$ gcc -S -O2 -g -Wall /tmp/p.i -W -m32
> > [hjl@gnu-6 config]$
> >
> > Please try it with your GCC 7.
>
> OK!
>
> random@svaha:/tmp$ x86_64-cbl-linux-gnu-gcc -S -O2 -g -Wall p.i -W
> random@svaha:/tmp$
>
> That compilation succeeds and produces p.s, which I am attaching.
Why did gas fail to build for you with GCC 7?
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