--- /dev/null
+/*******************************************************************************
+Copyright (c) 2015, 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 ASSEMBLER
+#include "common.h"
+
+#define N x0 /* vector length */
+#define X x3 /* X vector address */
+#define INC_X x4 /* X stride */
+#define Y x5 /* Y vector address */
+#define INC_Y x6 /* Y stride */
+#define I x1 /* loop variable */
+
+/*******************************************************************************
+* Macro definitions
+*******************************************************************************/
+
+#if !defined(DOUBLE)
+#define DA s0 /* scale input value */
+#define TMPX s1
+#define TMPVX {v1.s}[0]
+#define TMPY s2
+#define TMPVY {v2.s}[0]
+#define SZ 4
+#else
+#define DA d0 /* scale input value */
+#define TMPX d1
+#define TMPVX {v1.d}[0]
+#define TMPY d2
+#define TMPVY {v2.d}[0]
+#define SZ 8
+#endif
+
+/******************************************************************************/
+
+.macro KERNEL_F1
+
+ ldr TMPX, [X], #SZ
+ ldr TMPY, [Y]
+ fmadd TMPY, TMPX, DA, TMPY
+ str TMPY, [Y], #SZ
+
+.endm
+
+.macro KERNEL_F4
+
+#if !defined(DOUBLE)
+ ld1 {v1.4s}, [X], #16
+ ld1 {v2.4s}, [Y]
+ fmla v2.4s, v1.4s, v0.s[0]
+ st1 {v2.4s}, [Y], #16
+#else // DOUBLE
+ ld1 {v1.2d, v2.2d}, [X], #32
+ ld1 {v3.2d, v4.2d}, [Y]
+ fmla v3.2d, v1.2d, v0.d[0]
+ fmla v4.2d, v2.2d, v0.d[0]
+ st1 {v3.2d, v4.2d}, [Y], #32
+#endif
+
+.endm
+
+.macro KERNEL_F8
+#if !defined(DOUBLE)
+ ld1 {v1.4s, v2.4s}, [X], #32
+ ld1 {v3.4s, v4.4s}, [Y]
+
+ fmla v3.4s, v1.4s, v0.s[0]
+ fmla v4.4s, v2.4s, v0.s[0]
+
+ st1 {v3.4s, v4.4s}, [Y], #32
+#else // DOUBLE
+ ld1 {v1.2d, v2.2d, v3.2d, v4.2d}, [X], #64
+ ld1 {v16.2d, v17.2d, v18.2d, v19.2d}, [Y]
+
+ fmla v16.2d, v1.2d, v0.d[0]
+ fmla v17.2d, v2.2d, v0.d[0]
+ fmla v18.2d, v3.2d, v0.d[0]
+ fmla v19.2d, v4.2d, v0.d[0]
+
+ st1 {v16.2d, v17.2d, v18.2d, v19.2d}, [Y], #64
+#endif
+ PRFM PLDL1KEEP, [X, #512]
+ PRFM PLDL1KEEP, [Y, #512]
+.endm
+
+.macro INIT_S
+
+#if !defined(DOUBLE)
+ lsl INC_X, INC_X, #2
+ lsl INC_Y, INC_Y, #2
+#else
+ lsl INC_X, INC_X, #3
+ lsl INC_Y, INC_Y, #3
+#endif
+
+.endm
+
+.macro KERNEL_S1
+
+ ld1 TMPVX, [X], INC_X
+ ldr TMPY, [Y]
+ fmadd TMPY, TMPX, DA, TMPY
+ st1 TMPVY, [Y], INC_Y
+
+.endm
+
+/*******************************************************************************
+* End of macro definitions
+*******************************************************************************/
+
+ PROLOGUE
+
+ cmp N, xzr
+ ble axpy_kernel_L999
+
+ fcmp DA, #0.0
+ beq axpy_kernel_L999
+
+ cmp INC_X, #1
+ bne axpy_kernel_S_BEGIN
+ cmp INC_Y, #1
+ bne axpy_kernel_S_BEGIN
+
+axpy_kernel_F_BEGIN:
+
+ asr I, N, #3
+ cmp I, xzr
+ beq axpy_kernel_F1
+
+axpy_kernel_F8:
+
+ KERNEL_F8
+
+ subs I, I, #1
+ bne axpy_kernel_F8
+
+axpy_kernel_F1:
+
+ ands I, N, #7
+ ble axpy_kernel_L999
+
+axpy_kernel_F10:
+
+ KERNEL_F1
+
+ subs I, I, #1
+ bne axpy_kernel_F10
+
+ mov w0, wzr
+ ret
+
+axpy_kernel_S_BEGIN:
+
+ INIT_S
+
+ asr I, N, #2
+ cmp I, xzr
+ ble axpy_kernel_S1
+
+axpy_kernel_S4:
+
+ KERNEL_S1
+ KERNEL_S1
+ KERNEL_S1
+ KERNEL_S1
+
+ subs I, I, #1
+ bne axpy_kernel_S4
+
+axpy_kernel_S1:
+
+ ands I, N, #3
+ ble axpy_kernel_L999
+
+axpy_kernel_S10:
+
+ KERNEL_S1
+
+ subs I, I, #1
+ bne axpy_kernel_S10
+
+axpy_kernel_L999:
+
+ mov w0, wzr
+ ret
--- /dev/null
+/*******************************************************************************
+Copyright (c) 2015, 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 ASSEMBLER
+#include "common.h"
+
+#define N x0 /* vector length */
+#define X x3 /* X vector address */
+#define INC_X x4 /* X stride */
+#define Y x5 /* Y vector address */
+#define INC_Y x6 /* Y stride */
+#define I x1 /* loop variable */
+#define Y_COPY x7 /* loop variable */
+
+/*******************************************************************************
+* Macro definitions
+*******************************************************************************/
+
+#if !defined(DOUBLE)
+#define DA_R s0 /* scale input value */
+#define DA_I s1 /* scale input value */
+#define TMPX v2.2s
+#define TMPY v3.2s
+#define SZ 4
+#else
+#define DA_R d0 /* scale input value */
+#define DA_I d1 /* scale input value */
+#define TMPX v2.2d
+#define TMPY v3.2d
+#define SZ 8
+#endif
+
+/******************************************************************************/
+
+.macro INIT
+
+#if !defined(CONJ)
+#if !defined(DOUBLE)
+ ins v0.s[1], v0.s[0] // v0 = DA_R, DA_R
+ fneg s2, DA_I
+ ins v1.s[1], v2.s[0] // v1 = -DA_I, DA_I
+ ext v1.8b, v1.8b, v1.8b, #4 // v1 = DA_I, -DA_I
+#else
+ ins v0.d[1], v0.d[0] // v0 = DA_R, DA_R
+ fneg d2, DA_I
+ ins v1.d[1], v2.d[0] // v1 = -DA_I, DA_I
+ ext v1.16b, v1.16b, v1.16b, #8 // v1 = DA_I, -DA_I
+#endif
+#else
+#if !defined(DOUBLE)
+ fneg s2, DA_R
+ ins v0.s[1], v2.s[0] // v0 = -DA_R, DA_R
+ ins v1.s[1], v1.s[0] // v1 = DA_I, DA_I
+#else
+ fneg d2, DA_R
+ ins v0.d[1], v2.d[0] // v0 = -DA_R, DA_R
+ ins v1.d[1], v1.d[0] // v1 = DA_I, DA_I
+#endif
+#endif
+
+.endm
+
+.macro KERNEL_F1
+
+#if !defined(DOUBLE)
+ ld1 {v2.2s}, [X], #8 // V2 = X[ix+1], X[ix]; X += 2
+ ld1 {v3.2s}, [Y] // V3 = Y[iy+1], Y[iy]
+ ext v4.8b, v2.8b, v2.8b, #4 // V4 = X[ix], X[ix+1]
+ fmla v3.2s, v0.2s, v2.2s // Y[iy] += DA_R * X[ix]
+ // Y[iy+1] += +-DA_R * X[ix+1]
+ fmla v3.2s, v1.2s, v4.2s // Y[iy] += +-DA_I * X[ix+1]
+ // Y[iy+1] += DA_I * X[ix]
+ st1 {v3.2s}, [Y], #8
+#else
+ ld1 {v2.2d}, [X], #16 // V2 = X[ix+1], X[ix]; X += 2
+ ld1 {v3.2d}, [Y] // V3 = Y[iy+1], Y[iy]
+ ext v4.16b, v2.16b, v2.16b, #8 // V4 = X[ix], X[ix+1]
+ fmla v3.2d, v0.2d, v2.2d // Y[iy] += DA_R * X[ix]
+ // Y[iy+1] += +-DA_R * X[ix+1]
+ fmla v3.2d, v1.2d, v4.2d // Y[iy] += +-DA_I * X[ix+1]
+ // Y[iy+1] += DA_I * X[ix]
+ st1 {v3.2d}, [Y], #16
+#endif
+
+.endm
+
+.macro KERNEL_INIT_F4
+
+#if !defined(DOUBLE)
+ // Replicate the lower 2 floats into the upper 2 slots
+ ins v0.d[1], v0.d[0] // v0 = DA_R, DA_R, DA_R, DA_R
+ ins v1.d[1], v1.d[0] // v1 = DA_I, DA_I, DA_I, DA_I
+#endif
+
+.endm
+
+.macro KERNEL_F4
+
+#if !defined(DOUBLE)
+ ld1 {v2.4s,v3.4s}, [X], #32 // V2 = X[3], X[2], X[1], X[0]
+ // V3 = X[7], X[6], X[5], X[4]
+ ext v6.8b, v2.8b, v2.8b, #4 // V6 = - , - , X[0], X[1]
+ ins v6.s[2], v2.s[3] // V6 = - , X[3], X[0], X[1]
+ ins v6.s[3], v2.s[2] // V6 = X[2], X[3], X[0], X[1]
+
+ ld1 {v4.4s,v5.4s}, [Y] // V4 = Y[3], Y[2], Y[1], Y[0]
+ // V5 = Y[7], Y[6], Y[5], Y[4]
+
+ ext v7.8b, v3.8b, v3.8b, #4 // V7 = - , - , X[4], X[5]
+ ins v7.s[2], v3.s[3] // V7 = - , X[7], X[4], X[5]
+ ins v7.s[3], v3.s[2] // V7 = X[6], X[7], X[4], X[5]
+
+ fmla v4.4s, v0.4s, v2.4s // Y[iy] += DA_R * X[ix]
+ // Y[iy+1] += +-DA_R * X[ix+1]
+ fmla v4.4s, v1.4s, v6.4s // Y[iy] += +-DA_I * X[ix+1]
+ // Y[iy+1] += DA_I * X[ix]
+ st1 {v4.4s}, [Y], #16
+
+ fmla v5.4s, v0.4s, v3.4s // Y[iy] += DA_R * X[ix]
+ fmla v5.4s, v1.4s, v7.4s // Y[iy] += +-DA_I * X[ix+1]
+ // Y[iy+1] += +-DA_R * X[ix+1]
+ // Y[iy+1] += DA_I * X[ix]
+ st1 {v5.4s}, [Y], #16
+#else // DOUBLE
+ ld1 {v2.2d,v3.2d}, [X], #32 // CX0, CX1, CX2, CX3
+ ext v20.16b, v2.16b, v2.16b, #8 // X[ix], X[ix+1]
+ ext v21.16b, v3.16b, v3.16b, #8 // X[ix], X[ix+1]
+
+ ld1 {v4.2d,v5.2d}, [X], #32 // CX0, CX1, CX2, CX3
+ ext v22.16b, v4.16b, v4.16b, #8 // X[ix], X[ix+1]
+ ext v23.16b, v5.16b, v5.16b, #8 // X[ix], X[ix+1]
+
+ ld1 {v16.2d,v17.2d}, [Y_COPY], #32 // CY0, CY1, CY2, CY3
+
+ fmla v16.2d, v0.2d, v2.2d
+ fmla v17.2d, v0.2d, v3.2d
+
+ ld1 {v18.2d,v19.2d}, [Y_COPY], #32 // CY0, CY1, CY2, CY3
+
+ fmla v16.2d, v1.2d, v20.2d
+ fmla v17.2d, v1.2d, v21.2d
+ st1 {v16.2d,v17.2d}, [Y], #32
+
+ fmla v18.2d, v0.2d, v4.2d
+ fmla v19.2d, v0.2d, v5.2d
+ fmla v18.2d, v1.2d, v22.2d
+ fmla v19.2d, v1.2d, v23.2d
+ st1 {v18.2d,v19.2d}, [Y], #32
+#endif
+ PRFM PLDL1KEEP, [X, #512]
+ PRFM PLDL1KEEP, [Y, #512]
+.endm
+
+.macro INIT_S
+
+#if !defined(DOUBLE)
+ lsl INC_X, INC_X, #3
+ lsl INC_Y, INC_Y, #3
+#else
+ lsl INC_X, INC_X, #4
+ lsl INC_Y, INC_Y, #4
+#endif
+
+.endm
+
+.macro KERNEL_S1
+
+#if !defined(DOUBLE)
+ ld1 {v2.2s}, [X], INC_X // V2 = X[ix+1], X[ix]; X += 2
+ ld1 {v3.2s}, [Y] // V3 = Y[iy+1], Y[iy]
+ ext v4.8b, v2.8b, v2.8b, #4 // V4 = X[ix], X[ix+1]
+ fmla v3.2s, v0.2s, v2.2s // Y[iy] += DA_R * X[ix]
+ // Y[iy+1] += +-DA_R * X[ix+1]
+ fmla v3.2s, v1.2s, v4.2s // Y[iy] += +-DA_I * X[ix+1]
+ // Y[iy+1] += DA_I * X[ix]
+ st1 {v3.2s}, [Y], INC_Y
+#else
+ ld1 {v2.2d}, [X], INC_X // V2 = X[ix+1], X[ix]; X += 2
+ ld1 {v3.2d}, [Y] // V3 = Y[iy+1], Y[iy]
+ ext v4.16b, v2.16b, v2.16b, #8 // V4 = X[ix], X[ix+1]
+ fmla v3.2d, v0.2d, v2.2d // Y[iy] += DA_R * X[ix]
+ // Y[iy+1] += +-DA_R * X[ix+1]
+ fmla v3.2d, v1.2d, v4.2d // Y[iy] += +-DA_I * X[ix+1]
+ // Y[iy+1] += DA_I * X[ix]
+ st1 {v3.2d}, [Y], INC_Y
+#endif
+
+.endm
+
+/*******************************************************************************
+* End of macro definitions
+*******************************************************************************/
+
+ PROLOGUE
+
+ cmp N, xzr
+ ble zaxpy_kernel_L999
+
+ mov Y_COPY, Y
+
+ fcmp DA_R, #0.0
+ bne .L1
+ fcmp DA_I, #0.0
+ beq zaxpy_kernel_L999
+
+.L1:
+ INIT
+
+ cmp INC_X, #1
+ bne zaxpy_kernel_S_BEGIN
+ cmp INC_Y, #1
+ bne zaxpy_kernel_S_BEGIN
+
+zaxpy_kernel_F_BEGIN:
+
+ asr I, N, #2
+ cmp I, xzr
+ beq zaxpy_kernel_F1
+
+ KERNEL_INIT_F4
+
+zaxpy_kernel_F4:
+
+ KERNEL_F4
+
+ subs I, I, #1
+ bne zaxpy_kernel_F4
+
+zaxpy_kernel_F1:
+
+ ands I, N, #3
+ ble zaxpy_kernel_L999
+
+zaxpy_kernel_F10:
+
+ KERNEL_F1
+
+ subs I, I, #1
+ bne zaxpy_kernel_F10
+
+ mov w0, wzr
+ ret
+
+zaxpy_kernel_S_BEGIN:
+
+ INIT_S
+
+ asr I, N, #2
+ cmp I, xzr
+ ble zaxpy_kernel_S1
+
+zaxpy_kernel_S4:
+
+ KERNEL_S1
+ KERNEL_S1
+ KERNEL_S1
+ KERNEL_S1
+
+ subs I, I, #1
+ bne zaxpy_kernel_S4
+
+zaxpy_kernel_S1:
+
+ ands I, N, #3
+ ble zaxpy_kernel_L999
+
+zaxpy_kernel_S10:
+
+ KERNEL_S1
+
+ subs I, I, #1
+ bne zaxpy_kernel_S10
+
+zaxpy_kernel_L999:
+
+ mov w0, wzr
+ ret
projects / platform / upstream / openblas.git / commitdiff