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Re: [PATCH v2 13/18] tests/tcg: add vectorised sha512 versions


From: Alex Bennée
Subject: Re: [PATCH v2 13/18] tests/tcg: add vectorised sha512 versions
Date: Mon, 28 Feb 2022 13:58:57 +0000
User-agent: mu4e 1.7.9; emacs 28.0.91

Richard Henderson <richard.henderson@linaro.org> writes:

> On 2/25/22 07:20, Alex Bennée wrote:
>> +++ b/tests/tcg/i386/Makefile.target
>> @@ -71,3 +71,9 @@ TESTS=$(MULTIARCH_TESTS) $(I386_TESTS)
>>     # On i386 and x86_64 Linux only supports 4k pages (large pages
>> are a different hack)
>>   EXTRA_RUNS+=run-test-mmap-4096
>> +
>> +sha512-sse: CFLAGS=-msse4.1 -O3
>> +sha512-sse: sha512.c
>> +    $(CC) $(CFLAGS) $(EXTRA_CFLAGS) $< -o $@ $(LDFLAGS)
>> +
>> +TESTS+=sha512-sse
>
> The default cpu, qemu32, only implements sse3, not sse4.1, so we get a
> guest SIGILL.  We can execute this with -cpu max, or we could limit
> the vectorization.

OK I'll add:

run-sha512-vector: QEMU_OPTS+=-cpu max

TESTS+=sha512-sse                                                          

>
>
> r~


-- 
Alex Bennée



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