Attachment 111296 Details for Bug 87658 – 0001-util-improve-fxsave-detection.patch

[patch] 0001-util-improve-fxsave-detection.patch

0001-util-improve-fxsave-detection.patch (text/plain), 1.24 KB, created by David Heidelberg (okias) on 2014-12-24 18:45:18 UTC

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Creator: David Heidelberg (okias)

Created: 2014-12-24 18:45:18 UTC

Size: 1.24 KB

patch

obsolete

>From 11b76f4cb4e0be4ab9ccbfc0a18ee9edeea39aa5 Mon Sep 17 00:00:00 2001
>From: David Heidelberg <david@ixit.cz>
>Date: Wed, 24 Dec 2014 19:40:16 +0100
>Subject: [PATCH] util: improve fxsave detection
>
>Also drops double set fxarea.mxcsr_mask in case of unsupported CC.
>
>Signed-off-by: David Heidelberg <david@ixit.cz>
>---
> src/gallium/auxiliary/util/u_cpu_detect.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
>diff --git a/src/gallium/auxiliary/util/u_cpu_detect.c b/src/gallium/auxiliary/util/u_cpu_detect.c
>index 5d9db59..13b7a89 100644
>--- a/src/gallium/auxiliary/util/u_cpu_detect.c
>+++ b/src/gallium/auxiliary/util/u_cpu_detect.c
>@@ -281,13 +281,13 @@ static INLINE boolean sse2_has_daz(void)
>    } PIPE_ALIGN_VAR(16) fxarea;
> 
>    fxarea.mxcsr_mask = 0;
>-#if (defined(PIPE_CC_GCC) || defined(PIPE_CC_SUNPRO))
>+#if (defined(PIPE_CC_GCC) && (PIPE_CC_GCC_VERSION >= 408))
>+   __builtin_ia32_fxsave(&fxarea);
>+#elif (defined(PIPE_CC_GCC) || defined(PIPE_CC_SUNPRO))
>    __asm __volatile ("fxsave %0" : "+m" (fxarea));
> #elif (defined(PIPE_CC_MSVC) && _MSC_VER >= 1700) || defined(PIPE_CC_ICL)
>    /* 1700 = Visual Studio 2012 */
>    _fxsave(&fxarea);
>-#else
>-   fxarea.mxcsr_mask = 0;
> #endif
>    return !!(fxarea.mxcsr_mask & (1 << 6));
> }
>-- 
>2.1.3
>

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