[PATCH] x86-64: Verify that _dl_runtime_resolve preserves vector registers

[H.J. Lu]

2017-02-09 11:03 GMT-08:00 H.J. Lu <hjl.tools@gmail.com>:
> On Tue, Feb 7, 2017 at 11:57 AM, H.J. Lu <hongjiu.lu@intel.com> wrote:
>> On x86-64, _dl_runtime_resolve must preserve the first 8 vector
>> registers.  Add 3 _dl_runtime_resolve tests to verify that SSE,
>> AVX and AVX512 registers are preserved.
>>
>> Tested on SSE, AVX and AVX512 machines with GCC 6.  Any comments?
>>
>>
>> H.J.
>> ---
>>         * sysdeps/x86_64/Makefile (tests): Add tst-sse, tst-avx and
>>         tst-avx512.
>>         (test-extras): Add tst-avx-aux and tst-avx512-aux.
>>         (extra-test-objs): Add tst-avx-aux.o and tst-avx512-aux.o.
>>         (modules-names): Add tst-ssemod, tst-avxmod and tst-avx512mod.
>>         ($(objpfx)tst-sse): New rule.
>>         ($(objpfx)tst-avx): Likewise.
>>         ($(objpfx)tst-avx512): Likewise.
>>         (CFLAGS-tst-avx-aux.c): New.
>>         (CFLAGS-tst-avxmod.c): Likewise.
>>         (CFLAGS-tst-avx512-aux.c): Likewise.
>>         (CFLAGS-tst-avx512mod.c): Likewise.
>>         * sysdeps/x86_64/tst-avx-aux.c: New file.
>>         * sysdeps/x86_64/tst-avx.c: Likewise.
>>         * sysdeps/x86_64/tst-avx512-aux.c: Likewise.
>>         * sysdeps/x86_64/tst-avx512.c: Likewise.
>>         * sysdeps/x86_64/tst-avx512mod.c: Likewise.
>>         * sysdeps/x86_64/tst-avxmod.c: Likewise.
>>         * sysdeps/x86_64/tst-sse.c: Likewise.
>>         * sysdeps/x86_64/tst-ssemod.c: Likewise.
>> ---
>
> I am checking it in shortly.
>

I am backporting this to 2.25, 2.24 and 2.23 branches.

-- 
H.J.