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From: Simon Wright <simon@pushface.org>
Newsgroups: comp.lang.ada
Subject: Re: =?utf-8?Q?GNAT=C2=A0bug?= on =?utf-8?Q?macOS=C2=A0Sierra?= ?
Date: Tue, 22 Nov 2016 08:28:29 +0000
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Date: 2016-11-22T08:28:29+00:00
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Vincent <vincent.diemunsch@gmail.com> writes:

> I made some further trials with compilers. I seems that
> - Gnat GPL 2016 works fine
> - Gnat FSF 6.1.0 has a problem with the file mp_x86_64bits.ads or
> mpfr-floats.adb
>
> /var/folders/xb/4bm5gdr13k373gg8pbn_wsxw0000gp/T//ccdi0L0B.s:8932:suffix
> or operands invalid for `movq'
> /var/folders/xb/4bm5gdr13k373gg8pbn_wsxw0000gp/T//ccdi0L0B.s:8954:suffix
> or operands invalid for `movq'

The assembly source produced for mp_x86_64bits.ads is only about 10
lines long, so I don't understand this one.

Compiling mpfr-floats.adb with FSF GCC 6.1.0 and

   gnatmake -c-u -f mpfr-floats.adb -cargs -S

the first few of the complaints in your original posting are lines of
the form

	movq	%xmm0, %rax
        
	movq	%rax, %xmm0

which (after some googling) look legal to me, and are accepted by the
assembler. What do you get?

Are you using the right assembler? I have

$ which as
/usr/bin/as
$ as --version
Apple LLVM version 8.0.0 (clang-800.0.42.1)
Target: x86_64-apple-darwin16.1.0
Thread model: posix
InstalledDir: /Library/Developer/CommandLineTools/usr/bin