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From: Yuri Sedunov <aris@altlinux.org>
To: devel@lists.altlinux.org
Subject: Re: [devel] WebKitGTK-2.24.1 & SSE2
Date: Tue, 09 Apr 2019 13:20:45 +0300
Message-ID: <803e6d4e6a50c15ab8e0cb3b82b152c6d1d0c74e.camel@altlinux.org> (raw)
In-Reply-To: <f34d9d0f-9cb9-6758-6038-3d9c3cbd6d35@basealt.ru>

В Вт, 09/04/2019 в 13:12 +0300, Anton Farygin пишет:
> 09.04.2019 12:58, Yuri Sedunov пишет:
> > Неожиданно свежий вебкит захотел SSE2 на ix86
> > https://webkitgtk.org/2019/04/09/webkitgtk2.24.1-released.html
> > ...
> > Detect SSE2 at compile time.
> > 
> > Принимаются конструктивные соображения по теме.
> 
> Форсируй SSE2 enabled at compile time для x86 архитектур.
> 
> А как они детектят ? у нас на сборочнице есть же sse2.

$ tail -30 Source/cmake/FindSSE2.cmake 
macro(CHECK_FOR_SSE2)
    include(CheckCXXSourceRuns)

    check_cxx_source_runs("
        #include <emmintrin.h>
        int main ()
        {
            __m128d a, b;
            double vals[2] = {0};
            a = _mm_loadu_pd (vals);
            b = _mm_add_pd (a,a);
            _mm_storeu_pd (vals,b);
            return(0);
        }"
        HAVE_SSE2_EXTENSIONS)

    if (CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_GNUCXX OR
CMAKE_COMPILER_IS_CLANG)
        if (HAVE_SSE2_EXTENSIONS)
            set(SSE2_SUPPORT_FOUND TRUE)
        endif ()
    elseif (MSVC AND NOT CMAKE_CL_64)
        if (HAVE_SSE2_EXTENSIONS)
            set(SSE2_SUPPORT_FOUND TRUE)
            message(STATUS "Found SSE2 extensions.")
        endif (HAVE_SSE2_EXTENSIONS)
    endif ()

endmacro(CHECK_FOR_SSE2)

CHECK_FOR_SSE2()

-- 
Yuri N. Sedunov


  reply	other threads:[~2019-04-09 10:20 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-09  9:58 Yuri Sedunov
2019-04-09 10:12 ` Anton Farygin
2019-04-09 10:20   ` Yuri Sedunov [this message]
2019-04-09 10:25     ` Anton Farygin
2019-04-09 10:29       ` Yuri Sedunov
2019-04-09 10:34         ` Alexey V. Vissarionov
2019-04-09 10:40           ` Anton Farygin
2019-04-09 10:45             ` Alexey V. Vissarionov
2019-04-09 10:35         ` Anton Farygin
2019-04-09 10:36           ` Anton Farygin
2019-04-09 10:41             ` Alexey V. Vissarionov
2019-04-09 10:44               ` Anton Farygin
2019-04-09 10:28 ` Michael Shigorin
2019-04-09 10:29   ` Anton Farygin
2019-04-09 10:39     ` Alexey V. Vissarionov
2019-04-09 10:45       ` Sergey Afonin
2019-04-09 10:47         ` Alexey V. Vissarionov

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