/*********************************************************************/
/* 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"
#if defined(NEHALEM)
#define RPREFETCHSIZE 12
#define WPREFETCHSIZE (RPREFETCHSIZE * 2)
#define PREFETCH prefetcht0
#define PREFETCHW prefetcht0
#endif
#ifndef WINDOWS_ABI
#define M ARG1 /* rdi */
#define N ARG2 /* rsi */
#define A ARG3 /* rdx */
#define LDA ARG4 /* rcx */
#define B ARG5 /* r8 */
#define I %r9
#else
#define STACKSIZE 256
#define M ARG1 /* rcx */
#define N ARG2 /* rdx */
#define A ARG3 /* r8 */
#define LDA ARG4 /* r9 */
#define OLD_B 40 + 32 + STACKSIZE(%rsp)
#define B %r14
#define I %r15
#endif
#define J %r10
#define AO1 %r11
#define AO2 %r12
#define AO3 %r13
#define AO4 %rax
PROLOGUE
PROFCODE
#ifdef WINDOWS_ABI
pushq %r15
pushq %r14
#endif
pushq %r13
pushq %r12
#ifdef WINDOWS_ABI
subq $STACKSIZE, %rsp
movups %xmm6, 0(%rsp)
movups %xmm7, 16(%rsp)
movups %xmm8, 32(%rsp)
movups %xmm9, 48(%rsp)
movups %xmm10, 64(%rsp)
movups %xmm11, 80(%rsp)
movups %xmm12, 96(%rsp)
movups %xmm13, 112(%rsp)
movups %xmm14, 128(%rsp)
movups %xmm15, 144(%rsp)
movq OLD_B, B
#endif
leaq (,LDA, SIZE), LDA # Scaling
movq N, J
sarq $1, J
jle .L20
ALIGN_4
.L12:
movq A, AO1
leaq (A, LDA), AO2
leaq (A, LDA, 2), A
movq M, I
sarq $2, I
jle .L14
ALIGN_4
.L13:
#ifndef DOUBLE
movss 0 * SIZE(AO1), %xmm0
movss 0 * SIZE(AO2), %xmm1
movss 1 * SIZE(AO1), %xmm2
movss 1 * SIZE(AO2), %xmm3
movss 2 * SIZE(AO1), %xmm4
movss 2 * SIZE(AO2), %xmm5
movss 3 * SIZE(AO1), %xmm6
movss 3 * SIZE(AO2), %xmm7
movss %xmm0, 0 * SIZE(B)
movss %xmm1, 1 * SIZE(B)
movss %xmm2, 2 * SIZE(B)
movss %xmm3, 3 * SIZE(B)
movss %xmm4, 4 * SIZE(B)
movss %xmm5, 5 * SIZE(B)
movss %xmm6, 6 * SIZE(B)
movss %xmm7, 7 * SIZE(B)
#else
PREFETCH RPREFETCHSIZE * SIZE(AO1)
movsd 0 * SIZE(AO1), %xmm0
movhpd 0 * SIZE(AO2), %xmm0
movsd 1 * SIZE(AO1), %xmm1
movhpd 1 * SIZE(AO2), %xmm1
PREFETCH RPREFETCHSIZE * SIZE(AO2)
movsd 2 * SIZE(AO1), %xmm2
movhpd 2 * SIZE(AO2), %xmm2
movsd 3 * SIZE(AO1), %xmm3
movhpd 3 * SIZE(AO2), %xmm3
PREFETCHW WPREFETCHSIZE * SIZE(B)
movapd %xmm0, 0 * SIZE(B)
movapd %xmm1, 2 * SIZE(B)
movapd %xmm2, 4 * SIZE(B)
movapd %xmm3, 6 * SIZE(B)
#endif
addq $4 * SIZE, AO1
addq $4 * SIZE, AO2
subq $-8 * SIZE, B
decq I
jg .L13
ALIGN_4
.L14:
movq M, I
andq $3, I
jle .L16
ALIGN_4
.L15:
#ifndef DOUBLE
movss 0 * SIZE(AO1), %xmm0
movss 0 * SIZE(AO2), %xmm1
movss %xmm0, 0 * SIZE(B)
movss %xmm1, 1 * SIZE(B)
#else
movsd 0 * SIZE(AO1), %xmm0
movhpd 0 * SIZE(AO2), %xmm0
movapd %xmm0, 0 * SIZE(B)
#endif
addq $SIZE, AO1
addq $SIZE, AO2
addq $2 * SIZE, B
decq I
jg .L15
ALIGN_4
.L16:
decq J
jg .L12
ALIGN_4
.L20:
testq $1, N
jle .L999
movq A, AO1
movq M, I
sarq $2, I
jle .L34
ALIGN_4
.L33:
#ifndef DOUBLE
movss 0 * SIZE(AO1), %xmm0
movss 1 * SIZE(AO1), %xmm1
movss 2 * SIZE(AO1), %xmm2
movss 3 * SIZE(AO1), %xmm3
movss %xmm0, 0 * SIZE(B)
movss %xmm1, 1 * SIZE(B)
movss %xmm2, 2 * SIZE(B)
movss %xmm3, 3 * SIZE(B)
#else
movsd 0 * SIZE(AO1), %xmm0
movhpd 1 * SIZE(AO1), %xmm0
movsd 2 * SIZE(AO1), %xmm1
movhpd 3 * SIZE(AO1), %xmm1
movapd %xmm0, 0 * SIZE(B)
movapd %xmm1, 2 * SIZE(B)
#endif
addq $4 * SIZE, AO1
subq $-4 * SIZE, B
decq I
jg .L33
ALIGN_4
.L34:
movq M, I
andq $3, I
jle .L999
ALIGN_4
.L35:
#ifndef DOUBLE
movss 0 * SIZE(AO1), %xmm0
movss %xmm0, 0 * SIZE(B)
#else
movsd 0 * SIZE(AO1), %xmm0
movsd %xmm0, 0 * SIZE(B)
#endif
addq $SIZE, AO1
addq $1 * SIZE, B
decq I
jg .L35
ALIGN_4
.L999:
#ifdef WINDOWS_ABI
movups 0(%rsp), %xmm6
movups 16(%rsp), %xmm7
movups 32(%rsp), %xmm8
movups 48(%rsp), %xmm9
movups 64(%rsp), %xmm10
movups 80(%rsp), %xmm11
movups 96(%rsp), %xmm12
movups 112(%rsp), %xmm13
movups 128(%rsp), %xmm14
movups 144(%rsp), %xmm15
addq $STACKSIZE, %rsp
#endif
popq %r12
popq %r13
#ifdef WINDOWS_ABI
popq %r14
popq %r15
#endif
ret
EPILOGUE