Add x86_64 implementation of ?sum

as trivial copy of ?asum with the fabs calls removed

diff --git a/kernel/x86_64/sum.S b/kernel/x86_64/sum.S
new file mode 100644 (file)
index 0000000..d075eaa
--- /dev/null
+++ b/kernel/x86_64/sum.S
@@ -0,0 +1,179 @@
+/*********************************************************************/
+/* Copyright 2009, 2010 The University of Texas at Austin.           */
+/* 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.                              */
+/*                                                                   */
+/*    THIS  SOFTWARE IS PROVIDED  BY THE  UNIVERSITY OF  TEXAS AT    */
+/*    AUSTIN  ``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 UNIVERSITY  OF TEXAS AT    */
+/*    AUSTIN 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.                                    */
+/*                                                                   */
+/* The views and conclusions contained in the software and           */
+/* documentation are those of the authors and should not be          */
+/* interpreted as representing official policies, either expressed   */
+/* or implied, of The University of Texas at Austin.                 */
+/*********************************************************************/
+
+#define ASSEMBLER
+#include "common.h"
+
+#define M      ARG1
+#define X      ARG2
+#define INCX   ARG3
+
+#define I      %rax
+
+#include "l1param.h"
+
+       PROLOGUE
+       PROFCODE
+
+       fldz
+       testq   M, M
+       jle     .L999
+       testq   INCX, INCX
+       jle     .L999
+
+       salq    $BASE_SHIFT, INCX
+
+       fldz
+       fldz
+       fldz
+       cmpq    $SIZE, INCX
+       jne     .L40
+
+       movq    M, I
+       sarq    $3,   I
+       jle     .L20
+       ALIGN_4
+
+.L10:
+#ifdef PREFETCH
+       PREFETCH (PREFETCHSIZE +  0) - PREOFFSET(X)
+#endif
+
+       FLD     0 * SIZE(X)
+       FLD     1 * SIZE(X)
+       FLD     2 * SIZE(X)
+       FLD     3 * SIZE(X)
+
+       faddp   %st, %st(7)
+       faddp   %st, %st(5)
+       faddp   %st, %st(3)
+       faddp   %st, %st(1)
+
+       FLD     4 * SIZE(X)
+       FLD     5 * SIZE(X)
+       FLD     6 * SIZE(X)
+       FLD     7 * SIZE(X)
+
+       addq    $8 * SIZE, X
+
+       faddp   %st, %st(7)
+       faddp   %st, %st(5)
+       faddp   %st, %st(3)
+       faddp   %st, %st(1)
+
+       decq    I
+       jg      .L10
+       ALIGN_4
+
+.L20:
+       andq    $7,  M
+       jle     .L998
+       ALIGN_4
+
+.L21:
+       FLD     (X)
+       faddp   %st,%st(1)
+       addq    $1 * SIZE, X
+       decq    M
+       jg      .L21
+       jmp     .L998
+       ALIGN_4
+
+.L40:
+       movq    M, I
+       sarq    $3,   I
+       jle     .L60
+       ALIGN_4
+
+.L50:
+       FLD     (X)
+       addq    INCX, X
+       FLD     (X)
+       addq    INCX, X
+       FLD     (X)
+       addq    INCX, X
+       FLD     (X)
+       addq    INCX, X
+
+       faddp   %st, %st(7)
+       faddp   %st, %st(5)
+       faddp   %st, %st(3)
+       faddp   %st, %st(1)
+
+       FLD     (X)
+       addq    INCX, X
+       FLD     (X)
+       addq    INCX, X
+       FLD     (X)
+       addq    INCX, X
+       FLD     (X)
+       addq    INCX, X
+
+       faddp   %st, %st(7)
+       faddp   %st, %st(5)
+       faddp   %st, %st(3)
+       faddp   %st, %st(1)
+
+       decq    I
+       jg      .L50
+       ALIGN_4
+
+.L60:
+       andq    $7,  M
+       jle     .L998
+       ALIGN_4
+
+
+.L61:
+       FLD     (X)
+       addq    INCX, X
+       faddp   %st,%st(1)
+       decq    M
+       jg      .L61
+       ALIGN_4
+
+.L998:
+       faddp   %st,%st(2)
+       faddp   %st,%st(1)
+       faddp   %st,%st(1)
+       ALIGN_4
+
+.L999:
+       ret
+
+       EPILOGUE

diff --git a/kernel/x86_64/zsum.S b/kernel/x86_64/zsum.S
new file mode 100644 (file)
index 0000000..45e0ddf
--- /dev/null
+++ b/kernel/x86_64/zsum.S
@@ -0,0 +1,180 @@
+/*********************************************************************/
+/* Copyright 2009, 2010 The University of Texas at Austin.           */
+/* 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.                              */
+/*                                                                   */
+/*    THIS  SOFTWARE IS PROVIDED  BY THE  UNIVERSITY OF  TEXAS AT    */
+/*    AUSTIN  ``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 UNIVERSITY  OF TEXAS AT    */
+/*    AUSTIN 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.                                    */
+/*                                                                   */
+/* The views and conclusions contained in the software and           */
+/* documentation are those of the authors and should not be          */
+/* interpreted as representing official policies, either expressed   */
+/* or implied, of The University of Texas at Austin.                 */
+/*********************************************************************/
+
+#define ASSEMBLER
+#include "common.h"
+
+#define M      ARG1
+#define X      ARG2
+#define INCX   ARG3
+
+#define I      %rax
+
+#include "l1param.h"
+
+       PROLOGUE
+       PROFCODE
+
+       fldz
+       testq   M, M
+       jle     .L999
+       testq   INCX, INCX
+       jle     .L999
+
+       salq    $ZBASE_SHIFT, INCX
+
+       fldz
+       fldz
+       fldz
+       cmpq    $SIZE * 2, INCX
+       jne     .L40
+
+       movq    M, I
+       sarq    $2,   I
+       jle     .L20
+       ALIGN_4
+
+.L10:
+#ifdef PREFETCH
+       PREFETCH (PREFETCHSIZE +  0) - PREOFFSET(X)
+#endif
+
+       FLD     0 * SIZE(X)
+       FLD     1 * SIZE(X)
+       FLD     2 * SIZE(X)
+       FLD     3 * SIZE(X)
+
+       faddp   %st, %st(7)
+       faddp   %st, %st(5)
+       faddp   %st, %st(3)
+       faddp   %st, %st(1)
+
+       FLD     4 * SIZE(X)
+       FLD     5 * SIZE(X)
+       FLD     6 * SIZE(X)
+       FLD     7 * SIZE(X)
+
+       addq    $8 * SIZE, X
+
+       faddp   %st, %st(7)
+       faddp   %st, %st(5)
+       faddp   %st, %st(3)
+       faddp   %st, %st(1)
+
+       decq    I
+       jg      .L10
+       ALIGN_4
+
+.L20:
+       andq    $3,  M
+       jle     .L998
+       ALIGN_4
+
+
+.L21:
+       FLD     0 * SIZE(X)
+       FLD     1 * SIZE(X)
+       faddp   %st,%st(3)
+       faddp   %st,%st(1)
+       addq    $2 * SIZE, X
+       decq    M
+       jg      .L21
+       jmp     .L998
+       ALIGN_4
+
+.L40:
+       movq    M, I
+       sarq    $2,   I
+       jle     .L60
+       ALIGN_4
+
+.L50:
+       FLD     0 * SIZE(X)
+       FLD     1 * SIZE(X)
+       addq    INCX, X
+       FLD     0 * SIZE(X)
+       FLD     1 * SIZE(X)
+       addq    INCX, X
+
+       faddp   %st, %st(7)
+       faddp   %st, %st(5)
+       faddp   %st, %st(3)
+       faddp   %st, %st(1)
+
+       FLD     0 * SIZE(X)
+       FLD     1 * SIZE(X)
+       addq    INCX, X
+       FLD     0 * SIZE(X)
+       FLD     1 * SIZE(X)
+       addq    INCX, X
+
+       faddp   %st, %st(7)
+       faddp   %st, %st(5)
+       faddp   %st, %st(3)
+       faddp   %st, %st(1)
+
+       decq    I
+       jg      .L50
+       ALIGN_4
+
+.L60:
+       andq    $3,  M
+       jle     .L998
+       ALIGN_4
+
+
+.L61:
+       FLD     0 * SIZE(X)
+       FLD     1 * SIZE(X)
+       addq    INCX, X
+       faddp   %st,%st(3)
+       faddp   %st,%st(1)
+       decq    M
+       jg      .L61
+       ALIGN_4
+
+.L998:
+       faddp   %st,%st(2)
+       faddp   %st,%st(1)
+       faddp   %st,%st(1)
+       ALIGN_4
+
+.L999:
+       ret
+
+       EPILOGUE