added optimized sgemv_t kernel for haswell

diff --git a/kernel/x86_64/sgemv_t.c b/kernel/x86_64/sgemv_t.c
index 89254c2..566311a 100644 (file)
--- a/kernel/x86_64/sgemv_t.c
+++ b/kernel/x86_64/sgemv_t.c
@@ -30,6 +30,8 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #if defined(BULLDOZER) || defined(PILEDRIVER)
 #include "sgemv_t_microk_bulldozer-2.c"
+#elif defined(HASWELL)
+#include "sgemv_t_microk_haswell-2.c"
 #endif
 
 /*

diff --git a/kernel/x86_64/sgemv_t_microk_haswell-2.c b/kernel/x86_64/sgemv_t_microk_haswell-2.c
new file mode 100644 (file)
index 0000000..cef7034
--- /dev/null
+++ b/kernel/x86_64/sgemv_t_microk_haswell-2.c
@@ -0,0 +1,112 @@
+/***************************************************************************
+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_16x4 1
+static void sgemv_kernel_16x4( BLASLONG n, float **ap, float *x, float *y) __attribute__ ((noinline));
+
+static void sgemv_kernel_16x4( BLASLONG n, float **ap, float *x, float *y)
+{
+
+       BLASLONG register i = 0;
+
+       __asm__  __volatile__
+       (
+       "vzeroupper                              \n\t"
+       "vxorps         %%ymm4 , %%ymm4, %%ymm4  \n\t"
+       "vxorps         %%ymm5 , %%ymm5, %%ymm5  \n\t"
+       "vxorps         %%ymm6 , %%ymm6, %%ymm6  \n\t"
+       "vxorps         %%ymm7 , %%ymm7, %%ymm7  \n\t"
+
+       ".align 16                               \n\t"
+       ".L01LOOP%=:                             \n\t"
+       "prefetcht0      384(%2,%0,4)            \n\t"
+       "vmovups        (%2,%0,4), %%ymm12       \n\t"  // 8 * x
+       "vmovups      32(%2,%0,4), %%ymm13       \n\t"  // 8 * x
+
+       "prefetcht0      384(%4,%0,4)                  \n\t"
+       "vfmadd231ps   (%4,%0,4), %%ymm12, %%ymm4      \n\t" 
+       "vfmadd231ps   (%5,%0,4), %%ymm12, %%ymm5      \n\t" 
+       "prefetcht0      384(%5,%0,4)                  \n\t"
+       "vfmadd231ps 32(%4,%0,4), %%ymm13, %%ymm4      \n\t" 
+       "vfmadd231ps 32(%5,%0,4), %%ymm13, %%ymm5      \n\t" 
+       "prefetcht0      384(%6,%0,4)                  \n\t"
+       "vfmadd231ps   (%6,%0,4), %%ymm12, %%ymm6      \n\t" 
+       "vfmadd231ps   (%7,%0,4), %%ymm12, %%ymm7      \n\t" 
+       "prefetcht0      384(%7,%0,4)                  \n\t"
+       "vfmadd231ps 32(%6,%0,4), %%ymm13, %%ymm6      \n\t" 
+       "vfmadd231ps 32(%7,%0,4), %%ymm13, %%ymm7      \n\t" 
+
+        "addq          $16, %0                       \n\t"
+       "subq           $16, %1                       \n\t"             
+       "jnz            .L01LOOP%=                    \n\t"
+
+       "vextractf128   $1 , %%ymm4, %%xmm12          \n\t"
+       "vextractf128   $1 , %%ymm5, %%xmm13          \n\t"
+       "vextractf128   $1 , %%ymm6, %%xmm14          \n\t"
+       "vextractf128   $1 , %%ymm7, %%xmm15          \n\t"
+
+       "vaddps         %%xmm4, %%xmm12, %%xmm4       \n\t"
+       "vaddps         %%xmm5, %%xmm13, %%xmm5       \n\t"
+       "vaddps         %%xmm6, %%xmm14, %%xmm6       \n\t"
+       "vaddps         %%xmm7, %%xmm15, %%xmm7       \n\t"
+
+        "vhaddps        %%xmm4, %%xmm4, %%xmm4  \n\t"
+        "vhaddps        %%xmm5, %%xmm5, %%xmm5  \n\t"
+        "vhaddps        %%xmm6, %%xmm6, %%xmm6  \n\t"
+        "vhaddps        %%xmm7, %%xmm7, %%xmm7  \n\t"
+
+        "vhaddps        %%xmm4, %%xmm4, %%xmm4  \n\t"
+        "vhaddps        %%xmm5, %%xmm5, %%xmm5  \n\t"
+        "vhaddps        %%xmm6, %%xmm6, %%xmm6  \n\t"
+        "vhaddps        %%xmm7, %%xmm7, %%xmm7  \n\t"
+
+        "vmovss         %%xmm4,    (%3)         \n\t"
+        "vmovss         %%xmm5,   4(%3)         \n\t"
+        "vmovss         %%xmm6,   8(%3)         \n\t"
+        "vmovss         %%xmm7,  12(%3)         \n\t"
+
+       "vzeroupper                      \n\t"
+
+       :
+        : 
+          "r" (i),     // 0    
+         "r" (n),      // 1
+          "r" (x),      // 2
+          "r" (y),      // 3
+          "r" (ap[0]),  // 4
+          "r" (ap[1]),  // 5
+          "r" (ap[2]),  // 6
+          "r" (ap[3])   // 7
+       : "cc", 
+         "%xmm4", "%xmm5", "%xmm6", "%xmm7",
+         "%xmm12", "%xmm13", "%xmm14", "%xmm15",
+         "memory"
+       );
+
+} 
+
+