Re: Commit 2d63a517e4084ec80403cd9f278690fa8b676cc4

["H.J. Lu" <hjl dot tools at gmail dot com>]

On Thu, Mar 13, 2014 at 6:57 PM, Paul Pluzhnikov <ppluzhnikov@google.com> wrote:
> After latest commit:
>
> commit 2d63a517e4084ec80403cd9f278690fa8b676cc4
> Author: Igor Zamyatin <igor.zamyatin@intel.com>
> Date:   Thu Mar 13 11:10:22 2014 -0700
>
>     Save and restore AVX-512 zmm registers to x86-64 ld.so
> ...
>
> "make check" fails like this for me:
>
>
> /tmp/ccJEXrrY.s: Assembler messages:
> /tmp/ccJEXrrY.s:47: Error: no such instruction: `vmovdqa64 %zmm0,-176(%rbp)'
> /tmp/ccJEXrrY.s:51: Error: bad register name `%zmm0'
> /tmp/ccJEXrrY.s:57: Error: no such instruction: `vmovdqa64 %zmm1,-240(%rbp)'
> /tmp/ccJEXrrY.s:58: Error: no such instruction: `vmovdqa64 %zmm2,-304(%rbp)'
> /tmp/ccJEXrrY.s:59: Error: no such instruction: `vmovdqa64 %zmm3,-368(%rbp)'
> /tmp/ccJEXrrY.s:60: Error: no such instruction: `vmovdqa64 %zmm4,-432(%rbp)'
> /tmp/ccJEXrrY.s:61: Error: no such instruction: `vmovdqa64 %zmm5,-496(%rbp)'
> /tmp/ccJEXrrY.s:62: Error: no such instruction: `vmovdqa64 %zmm6,-560(%rbp)'
> /tmp/ccJEXrrY.s:63: Error: no such instruction: `vmovdqa64 %zmm7,-624(%rbp)'
> /tmp/ccJEXrrY.s:65: Error: no such instruction: `vmovdqa64 %zmm0,-112(%rbp)'
> /tmp/ccJEXrrY.s:84: Error: bad register name `%zmm0'
> /tmp/ccJEXrrY.s:90: Error: no such instruction: `vmovdqa64 %zmm0,-112(%rbp)'
> ...
> make[2]: *** [/build/elf/tst-auditmod10a.os] Error 1
>
>
> Likely my binutils/as are too old. Should this test be conditional?

You have GCC 4.9 and a very old binutils.  We didn't test this combination.
Igor, please find a fix.  Thanks.

> I also don't see this patch reviewed on libc-alpha.

https://sourceware.org/ml/libc-alpha/2014-01/msg00457.html
https://sourceware.org/ml/libc-alpha/2014-02/msg00366.html
https://sourceware.org/ml/libc-alpha/2014-03/msg00068.html


-- 
H.J.