[Bug gas/21934] gas build fails when using gcc 7

[hjl.tools at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=21934

--- Comment #11 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Brett Neumeier from comment #9)
> Created attachment 10343 [details]
> attempt at minimal pre-processed tc-i386.i
> 
> OK, one more thing. I deleted everything that seemed to be unreferenced by
> output_invalid in the full tc-i386.i file, and the result compiles fine.
> 
> So there is *something* in the full tc-i386.i file I attached earlier that
> causes problems, but I have no idea what it is or how to proceed.

With i386 GCC 7.1.1, I got

address@hidden tmp]$  /usr/gcc-7.1.1-32bit/bin/gcc -S -O2 -g -Wall tc-i386.i
-W -Wstrict-prototypes -Wmissing-prototypes -Wshadow -Wstack-usage=262144
-Werror -Wwrite-strings  -Wno-implicit-fallthrough
address@hidden tmp]$ 

on your full tc-i386.i.  It sounds like an arm GCC 7 bug to me.  Please open
a GCC bug first before we decide what to do with a workaround in binutils.

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