From aef3a01d579214664cf2da58b0e4e1daf325a37e Mon Sep 17 00:00:00 2001 From: =?utf8?q?Jos=C3=A9=20Fonseca?= Date: Tue, 25 Nov 2014 22:15:40 +0000 Subject: [PATCH] scons: Generate SSE2 floating-point arithmetic. - SSE2 is available on all x86 processors we care about. - It's recommended by Intel: https://software.intel.com/en-us/blogs/2012/09/26/gcc-x86-performance-hints - And has been the default since MSVC 2012: http://msdn.microsoft.com/en-us/library/7t5yh4fd(v=vs.110).aspx Reviewed-by: Brian Paul Reviewed-by: Roland Scheidegger --- scons/gallium.py | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/scons/gallium.py b/scons/gallium.py index fe800fa0f71..8e2090bc678 100755 --- a/scons/gallium.py +++ b/scons/gallium.py @@ -390,7 +390,7 @@ def generate(env): ccflags += [ '-mstackrealign', # ensure stack is aligned '-msse', '-msse2', # enable SIMD intrinsics - #'-mfpmath=sse', + '-mfpmath=sse', # generate SSE floating-point arithmetic ] if platform in ['windows', 'darwin']: # Workaround http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37216 @@ -469,7 +469,7 @@ def generate(env): ] if env['machine'] == 'x86': ccflags += [ - #'/arch:SSE2', # use the SSE2 instructions + '/arch:SSE2', # use the SSE2 instructions (default since MSVC 2012) ] if platform == 'windows': ccflags += [ -- 2.30.2