+++ /dev/null
-/***************************************************************************
-Copyright (c) 2017, 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.
-*****************************************************************************/
-
-
-#include "common.h"
-
-#include <arm_neon.h>
-
-#define N "x0" /* vector length */
-#define X "x1" /* "X" vector address */
-#define INC_X "x2" /* "X" stride */
-#define Y "x3" /* "Y" vector address */
-#define INC_Y "x4" /* "Y" stride */
-#define J "x5" /* loop variable */
-
-#define REG0 "xzr"
-#define DOTF "d0"
-#define TMPX "d16"
-#define LD1VX "{v16.d}[0]"
-#define TMPY "d24"
-#define LD1VY "{v24.d}[0]"
-#define SZ "8"
-
-#if defined(SMP)
-extern int blas_level1_thread_with_return_value(int mode, BLASLONG m, BLASLONG n,
- BLASLONG k, void *alpha, void *a, BLASLONG lda, void *b, BLASLONG ldb,
- void *c, BLASLONG ldc, int (*function)(), int nthreads);
-#endif
-
-
-static FLOAT ddot_compute(BLASLONG n, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y)
-{
- FLOAT dot = 0.0 ;
-
- if ( n < 0 ) return(dot);
-
- __asm__ __volatile__ (
- " mov "N", %[N_] \n"
- " mov "X", %[X_] \n"
- " mov "INC_X", %[INCX_] \n"
- " mov "Y", %[Y_] \n"
- " mov "INC_Y", %[INCY_] \n"
- " fmov "DOTF", "REG0" \n"
- " fmov d1, "REG0" \n"
- " fmov d2, "REG0" \n"
- " fmov d3, "REG0" \n"
- " fmov d4, "REG0" \n"
- " fmov d5, "REG0" \n"
- " fmov d6, "REG0" \n"
- " fmov d7, "REG0" \n"
-
- " cmp "N", xzr \n"
- " ble .Ldot_kernel_L999 \n"
-
- " cmp "INC_X", #1 \n"
- " bne .Ldot_kernel_S_BEGIN \n"
- " cmp "INC_Y", #1 \n"
- " bne .Ldot_kernel_S_BEGIN \n"
-
- ".Ldot_kernel_F_BEGIN: \n"
- " asr "J", "N", #5 \n"
- " cmp "J", xzr \n"
- " beq .Ldot_kernel_F1 \n"
-
- " .align 5 \n"
- ".Ldot_kernel_F32: \n"
- " ldp q16, q17, ["X"] \n"
- " ldp q24, q25, ["Y"] \n"
- " ldp q18, q19, ["X", #32] \n"
- " ldp q26, q27, ["Y", #32] \n"
- " fmla v0.2d, v16.2d, v24.2d \n"
- " fmla v1.2d, v17.2d, v25.2d \n"
- " ldp q20, q21, ["X", #64] \n"
- " ldp q28, q29, ["Y", #64] \n"
- " fmla v2.2d, v18.2d, v26.2d \n"
- " fmla v3.2d, v19.2d, v27.2d \n"
- " ldp q22, q23, ["X", #96] \n"
- " ldp q30, q31, ["Y", #96] \n"
- " add "Y", "Y", #128 \n"
- " add "X", "X", #128 \n"
- " fmla v4.2d, v20.2d, v28.2d \n"
- " fmla v5.2d, v21.2d, v29.2d \n"
- " PRFM PLDL1KEEP, ["X", #896] \n"
- " PRFM PLDL1KEEP, ["Y", #896] \n"
- " PRFM PLDL1KEEP, ["X", #896+64] \n"
- " PRFM PLDL1KEEP, ["Y", #896+64] \n"
- " fmla v6.2d, v22.2d, v30.2d \n"
- " fmla v7.2d, v23.2d, v31.2d \n"
-
- " ldp q16, q17, ["X"] \n"
- " ldp q24, q25, ["Y"] \n"
- " ldp q18, q19, ["X", #32] \n"
- " ldp q26, q27, ["Y", #32] \n"
- " fmla v0.2d, v16.2d, v24.2d \n"
- " fmla v1.2d, v17.2d, v25.2d \n"
- " ldp q20, q21, ["X", #64] \n"
- " ldp q28, q29, ["Y", #64] \n"
- " fmla v2.2d, v18.2d, v26.2d \n"
- " fmla v3.2d, v19.2d, v27.2d \n"
- " ldp q22, q23, ["X", #96] \n"
- " ldp q30, q31, ["Y", #96] \n"
- " add "Y", "Y", #128 \n"
- " add "X", "X", #128 \n"
- " fmla v4.2d, v20.2d, v28.2d \n"
- " fmla v5.2d, v21.2d, v29.2d \n"
- " PRFM PLDL1KEEP, ["X", #896] \n"
- " PRFM PLDL1KEEP, ["Y", #896] \n"
- " PRFM PLDL1KEEP, ["X", #896+64] \n"
- " PRFM PLDL1KEEP, ["Y", #896+64] \n"
- " fmla v6.2d, v22.2d, v30.2d \n"
- " fmla v7.2d, v23.2d, v31.2d \n"
-
- " subs "J", "J", #1 \n"
- " bne .Ldot_kernel_F32 \n"
-
- " fadd v0.2d, v0.2d, v1.2d \n"
- " fadd v2.2d, v2.2d, v3.2d \n"
- " fadd v4.2d, v4.2d, v5.2d \n"
- " fadd v6.2d, v6.2d, v7.2d \n"
- " fadd v0.2d, v0.2d, v2.2d \n"
- " fadd v4.2d, v4.2d, v6.2d \n"
- " fadd v0.2d, v0.2d, v4.2d \n"
- " faddp "DOTF", v0.2d \n"
-
- ".Ldot_kernel_F1: \n"
- " ands "J", "N", #31 \n"
- " ble .Ldot_kernel_L999 \n"
-
- ".Ldot_kernel_F10: \n"
- " ldr "TMPX", ["X"] \n"
- " ldr "TMPY", ["Y"] \n"
- " add "X", "X", #"SZ" \n"
- " add "Y", "Y", #"SZ" \n"
- " fmadd "DOTF", "TMPX", "TMPY", "DOTF" \n"
-
- " subs "J", "J", #1 \n"
- " bne .Ldot_kernel_F10 \n"
-
- " b .Ldot_kernel_L999 \n"
-
- ".Ldot_kernel_S_BEGIN: \n"
- " lsl "INC_X", "INC_X", #3 \n"
- " lsl "INC_Y", "INC_Y", #3 \n"
- " asr "J", "N", #2 \n"
- " cmp "J", xzr \n"
- " ble .Ldot_kernel_S1 \n"
-
- ".Ldot_kernel_S4: \n"
- " ld1 "LD1VX", ["X"], "INC_X" \n"
- " ld1 "LD1VY", ["Y"], "INC_Y" \n"
- " fmadd "DOTF", "TMPX", "TMPY", "DOTF" \n"
- " ld1 "LD1VX", ["X"], "INC_X" \n"
- " ld1 "LD1VY", ["Y"], "INC_Y" \n"
- " fmadd "DOTF", "TMPX", "TMPY", "DOTF" \n"
- " ld1 "LD1VX", ["X"], "INC_X" \n"
- " ld1 "LD1VY", ["Y"], "INC_Y" \n"
- " fmadd "DOTF", "TMPX", "TMPY", "DOTF" \n"
- " ld1 "LD1VX", ["X"], "INC_X" \n"
- " ld1 "LD1VY", ["Y"], "INC_Y" \n"
- " fmadd "DOTF", "TMPX", "TMPY", "DOTF" \n"
- " subs "J", "J", #1 \n"
- " bne .Ldot_kernel_S4 \n"
-
- ".Ldot_kernel_S1: \n"
- " ands "J", "N", #3 \n"
- " ble .Ldot_kernel_L999 \n"
-
- ".Ldot_kernel_S10: \n"
- " ld1 "LD1VX", ["X"], "INC_X" \n"
- " ld1 "LD1VY", ["Y"], "INC_Y" \n"
- " fmadd "DOTF", "TMPX", "TMPY", "DOTF" \n"
- " subs "J", "J", #1 \n"
- " bne .Ldot_kernel_S10 \n"
-
- ".Ldot_kernel_L999: \n"
- " fmov %[DOT_], "DOTF" \n"
-
- : [DOT_] "=r" (dot) //%0
- : [N_] "r" (n), //%1
- [X_] "r" (x), //%2
- [INCX_] "r" (inc_x), //%3
- [Y_] "r" (y), //%4
- [INCY_] "r" (inc_y) //%5
- : "cc",
- "memory",
- "x0", "x1", "x2", "x3", "x4", "x5",
- "d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7"
- );
-
- return(dot);
-}
-
-#if defined(SMP)
-static int ddot_thread_function(BLASLONG n, BLASLONG dummy0,
- BLASLONG dummy1, FLOAT dummy2, FLOAT *x, BLASLONG inc_x, FLOAT *y,
- BLASLONG inc_y, FLOAT *result, BLASLONG dummy3)
-{
- *result = ddot_compute(n, x, inc_x, y, inc_y);
-
- return 0;
-}
-#endif
-
-FLOAT CNAME(BLASLONG n, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y)
-{
-#if defined(SMP)
- int nthreads;
- FLOAT dummy_alpha;
-#endif
- FLOAT dot = 0.0;
-
-#if defined(SMP)
- nthreads = num_cpu_avail(1);
-
- if (inc_x == 0 || inc_y == 0)
- nthreads = 1;
-
- if (n <= 10000)
- nthreads = 1;
-
- if (nthreads == 1) {
- dot = ddot_compute(n, x, inc_x, y, inc_y);
- } else {
- int mode, i;
- char result[MAX_CPU_NUMBER * sizeof(double) * 2];
- FLOAT *ptr;
-
- mode = BLAS_DOUBLE | BLAS_REAL;
-
- blas_level1_thread_with_return_value(mode, n, 0, 0, &dummy_alpha,
- x, inc_x, y, inc_y, result, 0,
- ( void *)ddot_thread_function, nthreads);
-
- ptr = (FLOAT *)result;
- for (i = 0; i < nthreads; i++) {
- dot = dot + (*ptr);
- ptr = (FLOAT *)(((char *)ptr) + sizeof(double) * 2);
- }
- }
-#else
- dot = ddot_compute(n, x, inc_x, y, inc_y);
-#endif
-
- return dot;
-}
--- /dev/null
+/***************************************************************************
+Copyright (c) 2017, 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.
+*****************************************************************************/
+
+
+#include "common.h"
+
+#include <arm_neon.h>
+
+#if !defined(DSDOT)
+#define RETURN_TYPE FLOAT
+#else
+#define RETURN_TYPE double
+#endif
+
+#define N "x0" /* vector length */
+#define X "x1" /* "X" vector address */
+#define INC_X "x2" /* "X" stride */
+#define Y "x3" /* "Y" vector address */
+#define INC_Y "x4" /* "Y" stride */
+#define J "x5" /* loop variable */
+
+#if !defined(DOUBLE)
+#if !defined(DSDOT)
+#define REG0 "wzr"
+#define DOTF "s0"
+#define TMPX "s16"
+#define TMPY "s24"
+#define INC_SHIFT "2"
+#define N_DIV_SHIFT "6"
+#define N_REM_MASK "63"
+#else
+#define REG0 "xzr"
+#define DOTF "d0"
+#define TMPX "s16"
+#define TMPX1 "d2"
+#define TMPY "s24"
+#define TMPY1 "d3"
+#define INC_SHIFT "2"
+#define N_DIV_SHIFT "4"
+#define N_REM_MASK "15"
+#endif
+#else
+#define REG0 "xzr"
+#define DOTF "d0"
+#define TMPX "d16"
+#define TMPY "d24"
+#define INC_SHIFT "3"
+#define N_DIV_SHIFT "5"
+#define N_REM_MASK "31"
+#endif
+
+#if !defined(DOUBLE)
+
+#if !defined(DSDOT)
+#define KERNEL_F1 \
+ " ldr "TMPX", ["X"] \n" \
+ " ldr "TMPY", ["Y"] \n" \
+ " add "X", "X", "INC_X" \n" \
+ " add "Y", "Y", "INC_Y" \n" \
+ " fmadd "DOTF", "TMPX", "TMPY", "DOTF" \n"
+
+#define KERNEL_F \
+ " ldp q16, q17, ["X"] \n" \
+ " ldp q24, q25, ["Y"] \n" \
+ " ldp q18, q19, ["X", #32] \n" \
+ " ldp q26, q27, ["Y", #32] \n" \
+ " fmla v0.4s, v16.4s, v24.4s \n" \
+ " fmla v1.4s, v17.4s, v25.4s \n" \
+ " ldp q20, q21, ["X", #64] \n" \
+ " ldp q28, q29, ["Y", #64] \n" \
+ " fmla v2.4s, v18.4s, v26.4s \n" \
+ " fmla v3.4s, v19.4s, v27.4s \n" \
+ " ldp q22, q23, ["X", #96] \n" \
+ " ldp q30, q31, ["Y", #96] \n" \
+ " add "Y", "Y", #128 \n" \
+ " add "X", "X", #128 \n" \
+ " fmla v4.4s, v20.4s, v28.4s \n" \
+ " fmla v5.4s, v21.4s, v29.4s \n" \
+ " PRFM PLDL1KEEP, ["X", #896] \n" \
+ " PRFM PLDL1KEEP, ["Y", #896] \n" \
+ " PRFM PLDL1KEEP, ["X", #896+64] \n" \
+ " PRFM PLDL1KEEP, ["Y", #896+64] \n" \
+ " fmla v6.4s, v22.4s, v30.4s \n" \
+ " fmla v7.4s, v23.4s, v31.4s \n" \
+ " ldp q16, q17, ["X"] \n" \
+ " ldp q24, q25, ["Y"] \n" \
+ " ldp q18, q19, ["X", #32] \n" \
+ " ldp q26, q27, ["Y", #32] \n" \
+ " fmla v0.4s, v16.4s, v24.4s \n" \
+ " fmla v1.4s, v17.4s, v25.4s \n" \
+ " ldp q20, q21, ["X", #64] \n" \
+ " ldp q28, q29, ["Y", #64] \n" \
+ " fmla v2.4s, v18.4s, v26.4s \n" \
+ " fmla v3.4s, v19.4s, v27.4s \n" \
+ " ldp q22, q23, ["X", #96] \n" \
+ " ldp q30, q31, ["Y", #96] \n" \
+ " add "Y", "Y", #128 \n" \
+ " add "X", "X", #128 \n" \
+ " fmla v4.4s, v20.4s, v28.4s \n" \
+ " fmla v5.4s, v21.4s, v29.4s \n" \
+ " PRFM PLDL1KEEP, ["X", #896] \n" \
+ " PRFM PLDL1KEEP, ["Y", #896] \n" \
+ " PRFM PLDL1KEEP, ["X", #896+64] \n" \
+ " PRFM PLDL1KEEP, ["Y", #896+64] \n" \
+ " fmla v6.4s, v22.4s, v30.4s \n" \
+ " fmla v7.4s, v23.4s, v31.4s \n"
+
+#define KERNEL_F_FINALIZE \
+ " fadd v0.4s, v0.4s, v1.4s \n" \
+ " fadd v2.4s, v2.4s, v3.4s \n" \
+ " fadd v4.4s, v4.4s, v5.4s \n" \
+ " fadd v6.4s, v6.4s, v7.4s \n" \
+ " fadd v0.4s, v0.4s, v2.4s \n" \
+ " fadd v4.4s, v4.4s, v6.4s \n" \
+ " fadd v0.4s, v0.4s, v4.4s \n" \
+ " faddp v0.4s, v0.4s, v0.4s \n" \
+ " faddp v0.4s, v0.4s, v0.4s \n"
+
+#else /* !defined(DSDOT) */
+#define KERNEL_F1 \
+ " ldr "TMPX", ["X"] \n" \
+ " ldr "TMPY", ["Y"] \n" \
+ " add "X", "X", "INC_X" \n" \
+ " add "Y", "Y", "INC_Y" \n" \
+ " fcvt "TMPX1", "TMPX" \n" \
+ " fcvt "TMPY1", "TMPY" \n" \
+ " fmul "TMPX1", "TMPX1", "TMPY1" \n" \
+ " fadd "DOTF", "DOTF", "TMPX1" \n"
+
+
+#define KERNEL_F \
+ " ldp q18, q19, ["X"] \n" \
+ " ldp q26, q27, ["Y"] \n" \
+ " fcvtl v16.2d, v18.2s \n" \
+ " fcvtl2 v17.2d, v18.4s \n" \
+ " fcvtl v18.2d, v19.2s \n" \
+ " fcvtl2 v19.2d, v19.4s \n" \
+ " fcvtl v24.2d, v26.2s \n" \
+ " fcvtl2 v25.2d, v26.4s \n" \
+ " fcvtl v26.2d, v27.2s \n" \
+ " fcvtl2 v27.2d, v27.4s \n" \
+ " ldp q22, q23, ["X", #32] \n" \
+ " ldp q30, q31, ["Y", #32] \n" \
+ " fcvtl v20.2d, v22.2s \n" \
+ " fcvtl2 v21.2d, v22.4s \n" \
+ " fcvtl v22.2d, v23.2s \n" \
+ " fcvtl2 v23.2d, v23.4s \n" \
+ " fcvtl v28.2d, v30.2s \n" \
+ " fcvtl2 v29.2d, v30.4s \n" \
+ " fcvtl v30.2d, v31.2s \n" \
+ " fcvtl2 v31.2d, v31.4s \n" \
+ " PRFM PLDL1KEEP, ["X", #896] \n" \
+ " PRFM PLDL1KEEP, ["Y", #896] \n" \
+ " PRFM PLDL1KEEP, ["X", #896+64] \n" \
+ " PRFM PLDL1KEEP, ["Y", #896+64] \n" \
+ " fmla v0.2d, v16.2d, v24.2d \n" \
+ " fmla v1.2d, v17.2d, v25.2d \n" \
+ " fmla v2.2d, v18.2d, v26.2d \n" \
+ " fmla v3.2d, v19.2d, v27.2d \n" \
+ " add "Y", "Y", #64 \n" \
+ " add "X", "X", #64 \n" \
+ " fmla v4.2d, v20.2d, v28.2d \n" \
+ " fmla v5.2d, v21.2d, v29.2d \n" \
+ " fmla v6.2d, v22.2d, v30.2d \n" \
+ " fmla v7.2d, v23.2d, v31.2d \n"
+
+#define KERNEL_F_FINALIZE \
+ " fadd v0.2d, v0.2d, v1.2d \n" \
+ " fadd v2.2d, v2.2d, v3.2d \n" \
+ " fadd v4.2d, v4.2d, v5.2d \n" \
+ " fadd v6.2d, v6.2d, v7.2d \n" \
+ " fadd v0.2d, v0.2d, v2.2d \n" \
+ " fadd v4.2d, v4.2d, v6.2d \n" \
+ " fadd v0.2d, v0.2d, v4.2d \n" \
+ " faddp "DOTF", v0.2d \n"
+#endif /* !defined(DSDOT) */
+
+#else /* !defined(DOUBLE) */
+#define KERNEL_F1 \
+ " ldr "TMPX", ["X"] \n" \
+ " ldr "TMPY", ["Y"] \n" \
+ " add "X", "X", "INC_X" \n" \
+ " add "Y", "Y", "INC_Y" \n" \
+ " fmadd "DOTF", "TMPX", "TMPY", "DOTF" \n"
+
+#define KERNEL_F \
+ " ldp q16, q17, ["X"] \n" \
+ " ldp q24, q25, ["Y"] \n" \
+ " ldp q18, q19, ["X", #32] \n" \
+ " ldp q26, q27, ["Y", #32] \n" \
+ " fmla v0.2d, v16.2d, v24.2d \n" \
+ " fmla v1.2d, v17.2d, v25.2d \n" \
+ " ldp q20, q21, ["X", #64] \n" \
+ " ldp q28, q29, ["Y", #64] \n" \
+ " fmla v2.2d, v18.2d, v26.2d \n" \
+ " fmla v3.2d, v19.2d, v27.2d \n" \
+ " ldp q22, q23, ["X", #96] \n" \
+ " ldp q30, q31, ["Y", #96] \n" \
+ " add "Y", "Y", #128 \n" \
+ " add "X", "X", #128 \n" \
+ " fmla v4.2d, v20.2d, v28.2d \n" \
+ " fmla v5.2d, v21.2d, v29.2d \n" \
+ " PRFM PLDL1KEEP, ["X", #896] \n" \
+ " PRFM PLDL1KEEP, ["Y", #896] \n" \
+ " PRFM PLDL1KEEP, ["X", #896+64] \n" \
+ " PRFM PLDL1KEEP, ["Y", #896+64] \n" \
+ " fmla v6.2d, v22.2d, v30.2d \n" \
+ " fmla v7.2d, v23.2d, v31.2d \n" \
+ " ldp q16, q17, ["X"] \n" \
+ " ldp q24, q25, ["Y"] \n" \
+ " ldp q18, q19, ["X", #32] \n" \
+ " ldp q26, q27, ["Y", #32] \n" \
+ " fmla v0.2d, v16.2d, v24.2d \n" \
+ " fmla v1.2d, v17.2d, v25.2d \n" \
+ " ldp q20, q21, ["X", #64] \n" \
+ " ldp q28, q29, ["Y", #64] \n" \
+ " fmla v2.2d, v18.2d, v26.2d \n" \
+ " fmla v3.2d, v19.2d, v27.2d \n" \
+ " ldp q22, q23, ["X", #96] \n" \
+ " ldp q30, q31, ["Y", #96] \n" \
+ " add "Y", "Y", #128 \n" \
+ " add "X", "X", #128 \n" \
+ " fmla v4.2d, v20.2d, v28.2d \n" \
+ " fmla v5.2d, v21.2d, v29.2d \n" \
+ " PRFM PLDL1KEEP, ["X", #896] \n" \
+ " PRFM PLDL1KEEP, ["Y", #896] \n" \
+ " PRFM PLDL1KEEP, ["X", #896+64] \n" \
+ " PRFM PLDL1KEEP, ["Y", #896+64] \n" \
+ " fmla v6.2d, v22.2d, v30.2d \n" \
+ " fmla v7.2d, v23.2d, v31.2d \n"
+
+#define KERNEL_F_FINALIZE \
+ " fadd v0.2d, v0.2d, v1.2d \n" \
+ " fadd v2.2d, v2.2d, v3.2d \n" \
+ " fadd v4.2d, v4.2d, v5.2d \n" \
+ " fadd v6.2d, v6.2d, v7.2d \n" \
+ " fadd v0.2d, v0.2d, v2.2d \n" \
+ " fadd v4.2d, v4.2d, v6.2d \n" \
+ " fadd v0.2d, v0.2d, v4.2d \n" \
+ " faddp "DOTF", v0.2d \n"
+#endif /* !defined(DOUBLE) */
+
+#if defined(SMP)
+extern int blas_level1_thread_with_return_value(int mode, BLASLONG m, BLASLONG n,
+ BLASLONG k, void *alpha, void *a, BLASLONG lda, void *b, BLASLONG ldb,
+ void *c, BLASLONG ldc, int (*function)(), int nthreads);
+#endif
+
+static RETURN_TYPE dot_compute(BLASLONG n, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y)
+{
+ RETURN_TYPE dot = 0.0 ;
+
+ if ( n < 0 ) return dot;
+
+ __asm__ __volatile__ (
+ " mov "N", %[N_] \n"
+ " mov "X", %[X_] \n"
+ " mov "INC_X", %[INCX_] \n"
+ " mov "Y", %[Y_] \n"
+ " mov "INC_Y", %[INCY_] \n"
+ " fmov "DOTF", "REG0" \n"
+ " fmov d1, xzr \n"
+ " fmov d2, xzr \n"
+ " fmov d3, xzr \n"
+ " fmov d4, xzr \n"
+ " fmov d5, xzr \n"
+ " fmov d6, xzr \n"
+ " fmov d7, xzr \n"
+ " cmp "N", xzr \n"
+ " ble .Ldot_kernel_L999 \n"
+ " cmp "INC_X", #1 \n"
+ " bne .Ldot_kernel_S_BEGIN \n"
+ " cmp "INC_Y", #1 \n"
+ " bne .Ldot_kernel_S_BEGIN \n"
+
+ ".Ldot_kernel_F_BEGIN: \n"
+ " lsl "INC_X", "INC_X", "INC_SHIFT" \n"
+ " lsl "INC_Y", "INC_Y", "INC_SHIFT" \n"
+ " asr "J", "N", #"N_DIV_SHIFT" \n"
+ " cmp "J", xzr \n"
+ " beq .Ldot_kernel_F1 \n"
+
+ " .align 5 \n"
+ ".Ldot_kernel_F: \n"
+ " "KERNEL_F" \n"
+ " subs "J", "J", #1 \n"
+ " bne .Ldot_kernel_F \n"
+ " "KERNEL_F_FINALIZE" \n"
+
+ ".Ldot_kernel_F1: \n"
+ " ands "J", "N", #"N_REM_MASK" \n"
+ " ble .Ldot_kernel_L999 \n"
+
+ ".Ldot_kernel_F10: \n"
+ " "KERNEL_F1" \n"
+ " subs "J", "J", #1 \n"
+ " bne .Ldot_kernel_F10 \n"
+ " b .Ldot_kernel_L999 \n"
+
+ ".Ldot_kernel_S_BEGIN: \n"
+ " lsl "INC_X", "INC_X", "INC_SHIFT" \n"
+ " lsl "INC_Y", "INC_Y", "INC_SHIFT" \n"
+ " asr "J", "N", #2 \n"
+ " cmp "J", xzr \n"
+ " ble .Ldot_kernel_S1 \n"
+
+ ".Ldot_kernel_S4: \n"
+ " "KERNEL_F1" \n"
+ " "KERNEL_F1" \n"
+ " "KERNEL_F1" \n"
+ " "KERNEL_F1" \n"
+ " subs "J", "J", #1 \n"
+ " bne .Ldot_kernel_S4 \n"
+
+ ".Ldot_kernel_S1: \n"
+ " ands "J", "N", #3 \n"
+ " ble .Ldot_kernel_L999 \n"
+
+ ".Ldot_kernel_S10: \n"
+ " "KERNEL_F1" \n"
+ " subs "J", "J", #1 \n"
+ " bne .Ldot_kernel_S10 \n"
+
+ ".Ldot_kernel_L999: \n"
+ " str "DOTF", [%[DOT_]] \n"
+
+ :
+ : [DOT_] "r" (&dot), //%0
+ [N_] "r" (n), //%1
+ [X_] "r" (x), //%2
+ [INCX_] "r" (inc_x), //%3
+ [Y_] "r" (y), //%4
+ [INCY_] "r" (inc_y) //%5
+ : "cc",
+ "memory",
+ "x0", "x1", "x2", "x3", "x4", "x5",
+ "d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7"
+ );
+
+ return dot;
+}
+
+#if defined(SMP)
+static int dot_thread_function(BLASLONG n, BLASLONG dummy0,
+ BLASLONG dummy1, FLOAT dummy2, FLOAT *x, BLASLONG inc_x, FLOAT *y,
+ BLASLONG inc_y, FLOAT *result, BLASLONG dummy3)
+{
+ *(RETURN_TYPE *)result = dot_compute(n, x, inc_x, y, inc_y);
+
+ return 0;
+}
+#endif
+
+RETURN_TYPE CNAME(BLASLONG n, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y)
+{
+#if defined(SMP)
+ int nthreads;
+ FLOAT dummy_alpha;
+#endif
+ RETURN_TYPE dot = 0.0;
+
+#if defined(SMP)
+ nthreads = num_cpu_avail(1);
+
+ if (inc_x == 0 || inc_y == 0)
+ nthreads = 1;
+
+ if (n <= 10000)
+ nthreads = 1;
+
+ if (nthreads == 1) {
+ dot = dot_compute(n, x, inc_x, y, inc_y);
+ } else {
+ int mode, i;
+ char result[MAX_CPU_NUMBER * sizeof(double) * 2];
+ RETURN_TYPE *ptr;
+
+#if !defined(DOUBLE)
+ mode = BLAS_SINGLE | BLAS_REAL;
+#else
+ mode = BLAS_DOUBLE | BLAS_REAL;
+#endif
+
+ blas_level1_thread_with_return_value(mode, n, 0, 0, &dummy_alpha,
+ x, inc_x, y, inc_y, result, 0,
+ ( void *)dot_thread_function, nthreads);
+
+ ptr = (RETURN_TYPE *)result;
+ for (i = 0; i < nthreads; i++) {
+ dot = dot + (*ptr);
+ ptr = (RETURN_TYPE *)(((char *)ptr) + sizeof(double) * 2);
+ }
+ }
+#else
+ dot = dot_compute(n, x, inc_x, y, inc_y);
+#endif
+
+ return dot;
+}
projects / platform / upstream / openblas.git / commitdiff