From cb897509154e5bfb9abff4b4be68e6a04494c99d Mon Sep 17 00:00:00 2001
From: "Raine M. Ekman" <raine@iki.fi>
Date: Mon, 27 Apr 2015 13:04:26 +0300
Subject: [PATCH] ...and add the new denormals.h file too.

---
 include/denormals.h | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 include/denormals.h

diff --git a/include/denormals.h b/include/denormals.h
new file mode 100644
index 000000000..f89325ac1
--- /dev/null
+++ b/include/denormals.h
@@ -0,0 +1,32 @@
+// Denormals stripping. 
+// These snippets should be common enough to be considered public domain.
+
+#ifndef DENORMALS_H
+#define DENORMALS_H
+
+
+#ifdef __SSE__
+#include <xmmintrin.h>
+#endif
+#ifdef __SSE3__
+#include <pmmintrin.h>
+#endif
+
+
+// Set denormal protection for this thread. 
+// To be on the safe side, don't set the DAZ flag for SSE2 builds, 
+// even if most SSE2 CPUs can handle it. 
+void inline disable_denormals() {
+#ifdef __SSE3__
+	/* DAZ flag */
+	_MM_SET_DENORMALS_ZERO_MODE( _MM_DENORMALS_ZERO_ON );
+#endif
+
+#ifdef __SSE__
+	/* FTZ flag */
+	_MM_SET_FLUSH_ZERO_MODE( _MM_FLUSH_ZERO_ON );
+#endif
+}
+
+#endif
+