From 9e3c0bf4512865b7b5cd0ef2f46ac79fa12b4e86 Mon Sep 17 00:00:00 2001
From: Lars-Dominik Braun <lars@6xq.net>
Date: Sun, 22 Feb 2015 15:17:24 +0100
Subject: Prefetch bucket accumulator

The bucket add is a hotspot.
---
 wscript | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'wscript')

diff --git a/wscript b/wscript
index 6ba36c4..d804ab1 100644
--- a/wscript
+++ b/wscript
@@ -15,7 +15,7 @@ def configure(conf):
     conf.check_cc (lib='amdlibm', header_name='amdlibm.h', mandatory=False, define_name='HAVE_AMDLIBM', uselib_store='amdlibm')
 
     # does not work
-    #conf.check_cc (function_name='__builtin_ia32_rdrand64_step', define_name='HAVE_RDRAND64')
+    conf.check_cc (function_name='__builtin_prefetch', define_name='HAVE_BUILTIN_PREFETCH')
     conf.write_config_header ('config.h')
 
 def build(bld):
-- 
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