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Date: Mon, 7 May 2012 17:02:51 -0400
From: Rich Felker <dalias@...ifal.cx>
To: musl@...ts.openwall.com
Subject: Re: Error compiling with clang
On Mon, May 07, 2012 at 10:13:06PM +0200, Truls Becken wrote:
> Hi,
>
> Compiling musl 0.9.0 with clang 3.0 gives me the following:
>
> src/math/i386/llrint.s:5:2: error: invalid instruction mnemonic 'fistpq'
>
> Changing fistpq back to fistpl in the 3 llrint files makes it compile.
> Is this a bug in clang? How should it be resolved?
fistpl writes a 32-bit integer. This function needs a 64-bit integer
result. I'm pretty sure clang is just wrong here, but if there's an
alternate mnemonic for fistpq that works on clang and gcc/gas I'd be
happy to change it.
In the mean time, you can just remove that .s file so the C code gets
used.
Rich
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