From b224771f403def7ade226a7410262361f495f668 Mon Sep 17 00:00:00 2001
From: Christoph Hertzberg <chtz@informatik.uni-bremen.de>
Date: Sun, 20 Mar 2016 10:57:08 +0100
Subject: bug #1178: Simplified modification of the SSE control register for
 better portability

---
 bench/btl/generic_bench/btl.hh | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

(limited to 'bench/btl')

diff --git a/bench/btl/generic_bench/btl.hh b/bench/btl/generic_bench/btl.hh
index 92af1306a..706b00fb0 100644
--- a/bench/btl/generic_bench/btl.hh
+++ b/bench/btl/generic_bench/btl.hh
@@ -44,15 +44,10 @@
 #define BTL_ASM_COMMENT(X)
 #endif
 
-#if (defined __GNUC__) && (!defined __INTEL_COMPILER) && !defined(__arm__) && !defined(__powerpc__)
-#define BTL_DISABLE_SSE_EXCEPTIONS()  { \
-  int aux = 0; \
-  asm( \
-  "stmxcsr   %[aux]           \n\t" \
-  "orl       $32832, %[aux]   \n\t" \
-  "ldmxcsr   %[aux]           \n\t" \
-  : : [aux] "m" (aux)); \
-}
+#ifdef __SSE__
+#include "xmmintrin.h"
+// This enables flush to zero (FTZ) and denormals are zero (DAZ) modes:
+#define BTL_DISABLE_SSE_EXCEPTIONS()  { _mm_setcsr(_mm_getcsr() | 0x8040); }
 #else
 #define BTL_DISABLE_SSE_EXCEPTIONS()
 #endif
-- 
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