added optimized cdot- and zdot-kernel for steamroller

kernel/x86_64/KERNEL.STEAMROLLER

@@ -3,7 +3,7 @@ CAXPYKERNEL = caxpy.c
 ZAXPYKERNEL = zaxpy.c
 
 SDOTKERNEL     = sdot.c
-DDOTKERNEL     = ddot_bullozer.S
+DDOTKERNEL     = ddot.c
 CDOTKERNEL     = cdot.c
 ZDOTKERNEL     = zdot.c
 

kernel/x86_64/cdot.c

@@ -30,8 +30,10 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <complex.h>
 
 
-#if defined(BULLDOZER) || defined(PILEDRIVER) || defined(STEAMROLLER)
+#if defined(BULLDOZER) || defined(PILEDRIVER)
 #include "cdot_microk_bulldozer-2.c"
+#elif defined(STEAMROLLER) 
+#include "cdot_microk_steamroller-2.c"
 #elif defined(NEHALEM) 
 #include "cdot_microk_nehalem-2.c"
 #elif defined(HASWELL)

kernel/x86_64/cdot_microk_steamroller-2.c

@@ -0,0 +1,196 @@
+/***************************************************************************
+Copyright (c) 2014, The OpenBLAS Project
+All rights reserved.
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+1. Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+notice, this list of conditions and the following disclaimer in
+the documentation and/or other materials provided with the
+distribution.
+3. Neither the name of the OpenBLAS project nor the names of
+its contributors may be used to endorse or promote products
+derived from this software without specific prior written permission.
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBLAS PROJECT OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*****************************************************************************/
+
+#define HAVE_KERNEL_16 1
+static void cdot_kernel_16( BLASLONG n, FLOAT *x, FLOAT *y , FLOAT *dot) __attribute__ ((noinline));
+
+static void cdot_kernel_16( BLASLONG n, FLOAT *x, FLOAT *y, FLOAT *dot)
+{
+
+
+	BLASLONG register i = 0;
+
+  if ( n < 1280 )
+  { 
+
+	__asm__  __volatile__
+	(
+	"vzeroupper					     \n\t"
+	"vxorps		%%xmm0, %%xmm0, %%xmm0	             \n\t"
+	"vxorps		%%xmm1, %%xmm1, %%xmm1	             \n\t"
+	"vxorps		%%xmm2, %%xmm2, %%xmm2	             \n\t"
+	"vxorps		%%xmm3, %%xmm3, %%xmm3	             \n\t"
+	"vxorps		%%xmm4, %%xmm4, %%xmm4	             \n\t"
+	"vxorps		%%xmm5, %%xmm5, %%xmm5	             \n\t"
+	"vxorps		%%xmm6, %%xmm6, %%xmm6	             \n\t"
+	"vxorps		%%xmm7, %%xmm7, %%xmm7	             \n\t"
+
+	".align 16				             \n\t"
+	"1:				             \n\t"
+        "vmovups                  (%2,%0,4), %%xmm8          \n\t"  // 2 * x
+        "vmovups                16(%2,%0,4), %%xmm9          \n\t"  // 2 * x
+
+        "vmovups                  (%3,%0,4), %%xmm12         \n\t"  // 2 * y
+        "vmovups                16(%3,%0,4), %%xmm13         \n\t"  // 2 * y
+
+        "vmovups                32(%2,%0,4), %%xmm10         \n\t"  // 2 * x
+        "vmovups                48(%2,%0,4), %%xmm11         \n\t"  // 2 * x
+
+        "vmovups                32(%3,%0,4), %%xmm14         \n\t"  // 2 * y
+        "vmovups                48(%3,%0,4), %%xmm15         \n\t"  // 2 * y
+
+	"vfmadd231ps       %%xmm8 , %%xmm12, %%xmm0     \n\t"  // x_r * y_r, x_i * y_i
+	"vfmadd231ps       %%xmm9 , %%xmm13, %%xmm1     \n\t"  // x_r * y_r, x_i * y_i
+
+	"vpermilps      $0xb1 , %%xmm12, %%xmm12               \n\t" // exchange real and imag part
+	"vpermilps      $0xb1 , %%xmm13, %%xmm13               \n\t"
+
+	"vfmadd231ps       %%xmm10, %%xmm14, %%xmm2     \n\t"  // x_r * y_r, x_i * y_i
+	"vfmadd231ps       %%xmm11, %%xmm15, %%xmm3     \n\t"  // x_r * y_r, x_i * y_i
+
+	"vpermilps      $0xb1 , %%xmm14, %%xmm14               \n\t"
+	"vpermilps      $0xb1 , %%xmm15, %%xmm15               \n\t"
+
+	"vfmadd231ps       %%xmm8 , %%xmm12, %%xmm4     \n\t"  // x_r * y_i, x_i * y_r
+	"addq		$16 , %0  	 	             \n\t"
+	"vfmadd231ps       %%xmm9 , %%xmm13, %%xmm5     \n\t"  // x_r * y_i, x_i * y_r
+	"vfmadd231ps       %%xmm10, %%xmm14, %%xmm6     \n\t"  // x_r * y_i, x_i * y_r
+	"subq	        $8 , %1			             \n\t"		
+	"vfmadd231ps       %%xmm11, %%xmm15, %%xmm7     \n\t"  // x_r * y_i, x_i * y_r
+
+	"jnz		1b		             \n\t"
+
+	"vaddps        %%xmm0, %%xmm1, %%xmm0	\n\t"
+	"vaddps        %%xmm2, %%xmm3, %%xmm2	\n\t"
+	"vaddps        %%xmm0, %%xmm2, %%xmm0	\n\t"
+
+	"vaddps        %%xmm4, %%xmm5, %%xmm4	\n\t"
+	"vaddps        %%xmm6, %%xmm7, %%xmm6	\n\t"
+	"vaddps        %%xmm4, %%xmm6, %%xmm4	\n\t"
+
+	"vmovups        %%xmm0,    (%4)		\n\t"
+	"vmovups        %%xmm4,  16(%4)		\n\t"
+	"vzeroupper		        	\n\t"
+
+	:
+        : 
+          "r" (i),	// 0	
+	  "r" (n),  	// 1
+          "r" (x),      // 2
+          "r" (y),      // 3
+          "r" (dot)     // 4
+	: "cc", 
+	  "%xmm0", "%xmm1", "%xmm2", "%xmm3", 
+	  "%xmm4", "%xmm5", "%xmm6", "%xmm7", 
+	  "%xmm8", "%xmm9", "%xmm10", "%xmm11",
+	  "%xmm12", "%xmm13", "%xmm14", "%xmm15",
+	  "memory"
+	);
+
+	return;
+  }
+
+	__asm__  __volatile__
+	(
+	"vzeroupper					     \n\t"
+	"vxorps		%%xmm0, %%xmm0, %%xmm0	             \n\t"
+	"vxorps		%%xmm1, %%xmm1, %%xmm1	             \n\t"
+	"vxorps		%%xmm2, %%xmm2, %%xmm2	             \n\t"
+	"vxorps		%%xmm3, %%xmm3, %%xmm3	             \n\t"
+	"vxorps		%%xmm4, %%xmm4, %%xmm4	             \n\t"
+	"vxorps		%%xmm5, %%xmm5, %%xmm5	             \n\t"
+	"vxorps		%%xmm6, %%xmm6, %%xmm6	             \n\t"
+	"vxorps		%%xmm7, %%xmm7, %%xmm7	             \n\t"
+
+	".align 16				             \n\t"
+	"1:				             \n\t"
+	"prefetcht0            512(%2,%0,4)		     \n\t"
+        "vmovups                  (%2,%0,4), %%xmm8          \n\t"  // 2 * x
+        "vmovups                16(%2,%0,4), %%xmm9          \n\t"  // 2 * x
+
+	"prefetcht0            512(%3,%0,4)		     \n\t"
+        "vmovups                  (%3,%0,4), %%xmm12         \n\t"  // 2 * y
+        "vmovups                16(%3,%0,4), %%xmm13         \n\t"  // 2 * y
+
+        "vmovups                32(%2,%0,4), %%xmm10         \n\t"  // 2 * x
+        "vmovups                48(%2,%0,4), %%xmm11         \n\t"  // 2 * x
+
+        "vmovups                32(%3,%0,4), %%xmm14         \n\t"  // 2 * y
+        "vmovups                48(%3,%0,4), %%xmm15         \n\t"  // 2 * y
+
+	"vfmadd231ps       %%xmm8 , %%xmm12, %%xmm0     \n\t"  // x_r * y_r, x_i * y_i
+	"vfmadd231ps       %%xmm9 , %%xmm13, %%xmm1     \n\t"  // x_r * y_r, x_i * y_i
+
+	"vpermilps      $0xb1 , %%xmm12, %%xmm12               \n\t" // exchange real and imag part
+	"vpermilps      $0xb1 , %%xmm13, %%xmm13               \n\t"
+
+	"vfmadd231ps       %%xmm10, %%xmm14, %%xmm2     \n\t"  // x_r * y_r, x_i * y_i
+	"vfmadd231ps       %%xmm11, %%xmm15, %%xmm3     \n\t"  // x_r * y_r, x_i * y_i
+
+	"vpermilps      $0xb1 , %%xmm14, %%xmm14               \n\t"
+	"vpermilps      $0xb1 , %%xmm15, %%xmm15               \n\t"
+
+	"vfmadd231ps       %%xmm8 , %%xmm12, %%xmm4     \n\t"  // x_r * y_i, x_i * y_r
+	"addq		$16 , %0  	 	             \n\t"
+	"vfmadd231ps       %%xmm9 , %%xmm13, %%xmm5     \n\t"  // x_r * y_i, x_i * y_r
+	"vfmadd231ps       %%xmm10, %%xmm14, %%xmm6     \n\t"  // x_r * y_i, x_i * y_r
+	"subq	        $8 , %1			             \n\t"		
+	"vfmadd231ps       %%xmm11, %%xmm15, %%xmm7     \n\t"  // x_r * y_i, x_i * y_r
+
+	"jnz		1b		             \n\t"
+
+	"vaddps        %%xmm0, %%xmm1, %%xmm0	\n\t"
+	"vaddps        %%xmm2, %%xmm3, %%xmm2	\n\t"
+	"vaddps        %%xmm0, %%xmm2, %%xmm0	\n\t"
+
+	"vaddps        %%xmm4, %%xmm5, %%xmm4	\n\t"
+	"vaddps        %%xmm6, %%xmm7, %%xmm6	\n\t"
+	"vaddps        %%xmm4, %%xmm6, %%xmm4	\n\t"
+
+	"vmovups        %%xmm0,    (%4)		\n\t"
+	"vmovups        %%xmm4,  16(%4)		\n\t"
+	"vzeroupper		        	\n\t"
+
+	:
+        : 
+          "r" (i),	// 0	
+	  "r" (n),  	// 1
+          "r" (x),      // 2
+          "r" (y),      // 3
+          "r" (dot)     // 4
+	: "cc", 
+	  "%xmm0", "%xmm1", "%xmm2", "%xmm3", 
+	  "%xmm4", "%xmm5", "%xmm6", "%xmm7", 
+	  "%xmm8", "%xmm9", "%xmm10", "%xmm11",
+	  "%xmm12", "%xmm13", "%xmm14", "%xmm15",
+	  "memory"
+	);
+
+
+} 
+
+

kernel/x86_64/zdot.c

@@ -30,8 +30,10 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <complex.h>
 
 
-#if defined(BULLDOZER) || defined(PILEDRIVER) || defined(STEAMROLLER)
+#if defined(BULLDOZER) || defined(PILEDRIVER)
 #include "zdot_microk_bulldozer-2.c"
+#elif defined(STEAMROLLER) 
+#include "zdot_microk_steamroller-2.c"
 #elif defined(NEHALEM) 
 #include "zdot_microk_nehalem-2.c"
 #elif defined(HASWELL)

kernel/x86_64/zdot_microk_steamroller-2.c

@@ -0,0 +1,193 @@
+/***************************************************************************
+Copyright (c) 2014, The OpenBLAS Project
+All rights reserved.
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+1. Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+notice, this list of conditions and the following disclaimer in
+the documentation and/or other materials provided with the
+distribution.
+3. Neither the name of the OpenBLAS project nor the names of
+its contributors may be used to endorse or promote products
+derived from this software without specific prior written permission.
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBLAS PROJECT OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*****************************************************************************/
+
+#define HAVE_KERNEL_8 1
+static void zdot_kernel_8( BLASLONG n, FLOAT *x, FLOAT *y , FLOAT *dot) __attribute__ ((noinline));
+
+static void zdot_kernel_8( BLASLONG n, FLOAT *x, FLOAT *y, FLOAT *dot)
+{
+
+
+	BLASLONG register i = 0;
+
+  if ( n < 640 )
+  {
+
+	__asm__  __volatile__
+	(
+	"vzeroupper					     \n\t"
+	"vxorpd		%%xmm0, %%xmm0, %%xmm0	             \n\t"
+	"vxorpd		%%xmm1, %%xmm1, %%xmm1	             \n\t"
+	"vxorpd		%%xmm2, %%xmm2, %%xmm2	             \n\t"
+	"vxorpd		%%xmm3, %%xmm3, %%xmm3	             \n\t"
+	"vxorpd		%%xmm4, %%xmm4, %%xmm4	             \n\t"
+	"vxorpd		%%xmm5, %%xmm5, %%xmm5	             \n\t"
+	"vxorpd		%%xmm6, %%xmm6, %%xmm6	             \n\t"
+	"vxorpd		%%xmm7, %%xmm7, %%xmm7	             \n\t"
+
+	".align 16			             \n\t"
+	"1:				             \n\t"
+	//"prefetcht0            512(%2,%0,8)		     \n\t"
+        "vmovups                  (%2,%0,8), %%xmm8          \n\t"  // 1 * x
+        "vmovups                16(%2,%0,8), %%xmm9          \n\t"  // 1 * x
+
+	// "prefetcht0            512(%3,%0,8)		     \n\t"
+        "vmovups                  (%3,%0,8), %%xmm12         \n\t"  // 1 * y
+        "vmovups                16(%3,%0,8), %%xmm13         \n\t"  // 1 * y
+
+        "vmovups                32(%2,%0,8), %%xmm10         \n\t"  // 1 * x
+        "vmovups                48(%2,%0,8), %%xmm11         \n\t"  // 1 * x
+
+        "vmovups                32(%3,%0,8), %%xmm14         \n\t"  // 1 * y
+        "vmovups                48(%3,%0,8), %%xmm15         \n\t"  // 1 * y
+
+	"vfmadd231pd       %%xmm8 , %%xmm12, %%xmm0     \n\t"  // x_r * y_r, x_i * y_i
+	"vfmadd231pd       %%xmm9 , %%xmm13, %%xmm1     \n\t"  // x_r * y_r, x_i * y_i
+	"vpermilpd      $0x1 , %%xmm13, %%xmm13               \n\t"
+	"vpermilpd      $0x1 , %%xmm12, %%xmm12               \n\t"
+	"vfmadd231pd       %%xmm10, %%xmm14, %%xmm2     \n\t"  // x_r * y_r, x_i * y_i
+	"vfmadd231pd       %%xmm11, %%xmm15, %%xmm3     \n\t"  // x_r * y_r, x_i * y_i
+	"vpermilpd      $0x1 , %%xmm14, %%xmm14               \n\t"
+	"vpermilpd      $0x1 , %%xmm15, %%xmm15               \n\t"
+
+	"vfmadd231pd       %%xmm8 , %%xmm12, %%xmm4     \n\t"  // x_r * y_i, x_i * y_r
+	"addq		$8 , %0	  	 	             \n\t"
+	"vfmadd231pd       %%xmm9 , %%xmm13, %%xmm5     \n\t"  // x_r * y_i, x_i * y_r
+	"vfmadd231pd       %%xmm10, %%xmm14, %%xmm6     \n\t"  // x_r * y_i, x_i * y_r
+	"subq	        $4 , %1			             \n\t"		
+	"vfmadd231pd       %%xmm11, %%xmm15, %%xmm7     \n\t"  // x_r * y_i, x_i * y_r
+
+	"jnz		1b		             \n\t"
+
+	"vaddpd        %%xmm0, %%xmm1, %%xmm0	\n\t"
+	"vaddpd        %%xmm2, %%xmm3, %%xmm2	\n\t"
+	"vaddpd        %%xmm0, %%xmm2, %%xmm0	\n\t"
+
+	"vaddpd        %%xmm4, %%xmm5, %%xmm4	\n\t"
+	"vaddpd        %%xmm6, %%xmm7, %%xmm6	\n\t"
+	"vaddpd        %%xmm4, %%xmm6, %%xmm4	\n\t"
+
+	"vmovups       %%xmm0,    (%4)		\n\t"
+	"vmovups       %%xmm4,  16(%4)		\n\t"
+	"vzeroupper					     \n\t"
+
+	:
+        : 
+          "r" (i),	// 0	
+	  "r" (n),  	// 1
+          "r" (x),      // 2
+          "r" (y),      // 3
+          "r" (dot)     // 4
+	: "cc", 
+	  "%xmm0", "%xmm1", "%xmm2", "%xmm3", 
+	  "%xmm4", "%xmm5", "%xmm6", "%xmm7", 
+	  "%xmm8", "%xmm9", "%xmm10", "%xmm11",
+	  "%xmm12", "%xmm13", "%xmm14", "%xmm15",
+	  "memory"
+	);
+
+	return;
+  }
+
+
+	__asm__  __volatile__
+	(
+	"vzeroupper					     \n\t"
+	"vxorpd		%%xmm0, %%xmm0, %%xmm0	             \n\t"
+	"vxorpd		%%xmm1, %%xmm1, %%xmm1	             \n\t"
+	"vxorpd		%%xmm2, %%xmm2, %%xmm2	             \n\t"
+	"vxorpd		%%xmm3, %%xmm3, %%xmm3	             \n\t"
+	"vxorpd		%%xmm4, %%xmm4, %%xmm4	             \n\t"
+	"vxorpd		%%xmm5, %%xmm5, %%xmm5	             \n\t"
+	"vxorpd		%%xmm6, %%xmm6, %%xmm6	             \n\t"
+	"vxorpd		%%xmm7, %%xmm7, %%xmm7	             \n\t"
+
+	".align 16			             \n\t"
+	"1:				             \n\t"
+	"prefetcht0            512(%2,%0,8)		     \n\t"
+        "vmovups                  (%2,%0,8), %%xmm8          \n\t"  // 1 * x
+        "vmovups                16(%2,%0,8), %%xmm9          \n\t"  // 1 * x
+
+	"prefetcht0            512(%3,%0,8)		     \n\t"
+        "vmovups                  (%3,%0,8), %%xmm12         \n\t"  // 1 * y
+        "vmovups                16(%3,%0,8), %%xmm13         \n\t"  // 1 * y
+
+        "vmovups                32(%2,%0,8), %%xmm10         \n\t"  // 1 * x
+        "vmovups                48(%2,%0,8), %%xmm11         \n\t"  // 1 * x
+
+        "vmovups                32(%3,%0,8), %%xmm14         \n\t"  // 1 * y
+        "vmovups                48(%3,%0,8), %%xmm15         \n\t"  // 1 * y
+
+	"vfmadd231pd       %%xmm8 , %%xmm12, %%xmm0     \n\t"  // x_r * y_r, x_i * y_i
+	"vfmadd231pd       %%xmm9 , %%xmm13, %%xmm1     \n\t"  // x_r * y_r, x_i * y_i
+	"vpermilpd      $0x1 , %%xmm13, %%xmm13               \n\t"
+	"vpermilpd      $0x1 , %%xmm12, %%xmm12               \n\t"
+	"vfmadd231pd       %%xmm10, %%xmm14, %%xmm2     \n\t"  // x_r * y_r, x_i * y_i
+	"vfmadd231pd       %%xmm11, %%xmm15, %%xmm3     \n\t"  // x_r * y_r, x_i * y_i
+	"vpermilpd      $0x1 , %%xmm14, %%xmm14               \n\t"
+	"vpermilpd      $0x1 , %%xmm15, %%xmm15               \n\t"
+
+	"vfmadd231pd       %%xmm8 , %%xmm12, %%xmm4     \n\t"  // x_r * y_i, x_i * y_r
+	"addq		$8 , %0	  	 	             \n\t"
+	"vfmadd231pd       %%xmm9 , %%xmm13, %%xmm5     \n\t"  // x_r * y_i, x_i * y_r
+	"vfmadd231pd       %%xmm10, %%xmm14, %%xmm6     \n\t"  // x_r * y_i, x_i * y_r
+	"subq	        $4 , %1			             \n\t"		
+	"vfmadd231pd       %%xmm11, %%xmm15, %%xmm7     \n\t"  // x_r * y_i, x_i * y_r
+
+	"jnz		1b		             \n\t"
+
+	"vaddpd        %%xmm0, %%xmm1, %%xmm0	\n\t"
+	"vaddpd        %%xmm2, %%xmm3, %%xmm2	\n\t"
+	"vaddpd        %%xmm0, %%xmm2, %%xmm0	\n\t"
+
+	"vaddpd        %%xmm4, %%xmm5, %%xmm4	\n\t"
+	"vaddpd        %%xmm6, %%xmm7, %%xmm6	\n\t"
+	"vaddpd        %%xmm4, %%xmm6, %%xmm4	\n\t"
+
+	"vmovups       %%xmm0,    (%4)		\n\t"
+	"vmovups       %%xmm4,  16(%4)		\n\t"
+	"vzeroupper					     \n\t"
+
+	:
+        : 
+          "r" (i),	// 0	
+	  "r" (n),  	// 1
+          "r" (x),      // 2
+          "r" (y),      // 3
+          "r" (dot)     // 4
+	: "cc", 
+	  "%xmm0", "%xmm1", "%xmm2", "%xmm3", 
+	  "%xmm4", "%xmm5", "%xmm6", "%xmm7", 
+	  "%xmm8", "%xmm9", "%xmm10", "%xmm11",
+	  "%xmm12", "%xmm13", "%xmm14", "%xmm15",
+	  "memory"
+	);
+
+
+} 
+
+