431 lines
7.5 KiB
ArmAsm
431 lines
7.5 KiB
ArmAsm
/***************************************************************************
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Copyright (c) 2013, The OpenBLAS Project
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the
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distribution.
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3. Neither the name of the OpenBLAS project nor the names of
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its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBLAS PROJECT OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*****************************************************************************/
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/**************************************************************************************
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* 2013/11/06 Saar
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* BLASTEST : OK
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* CTEST : OK
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* TEST : OK
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*
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**************************************************************************************/
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#define ASSEMBLER
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#include "common.h"
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#define STACKSIZE 256
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#define OLD_M r0
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#define OLD_N r1
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#define OLD_A r2
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#define OLD_LDA r3
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/******************************************************
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* [fp, #-128] - [fp, #-64] is reserved
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* for store and restore of floating point
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* registers
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*******************************************************/
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#define B [fp, #4 ]
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#define A [fp, #-248 ]
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#define M r0
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#define N r1
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#define M4 r2
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#define LDA r5
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#define AO1 r6
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#define BO1 r7
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#define BO2 r8
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#define BO3 r9
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#define I r4
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#define J r12
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#define A_PRE 256
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/**************************************************************************************
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* Macro definitions
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**************************************************************************************/
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.macro COPY4x4_1
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pld [ AO1, #A_PRE ]
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fldmias AO1, { s0 - s3 }
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add r3, AO1, LDA
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pld [ r3, #A_PRE ]
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fldmias r3, { s4 - s7 }
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add r3, r3, LDA
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pld [ r3, #A_PRE ]
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fldmias r3, { s8 - s11 }
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add r3, r3, LDA
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pld [ r3, #A_PRE ]
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fldmias r3, { s12 - s15 }
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fstmias BO1, { s0 - s15 }
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add AO1, AO1, #16
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add BO1, BO1, M4
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.endm
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.macro COPY4x4_2
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fldmias AO1, { s0 - s3 }
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add r3, AO1, LDA
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fldmias r3, { s4 - s7 }
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add r3, r3, LDA
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fldmias r3, { s8 - s11 }
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add r3, r3, LDA
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fldmias r3, { s12 - s15 }
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fstmias BO1, { s0 - s15 }
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add AO1, AO1, #16
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add BO1, BO1, M4
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.endm
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.macro COPY2x4
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fldmias AO1, { s0 - s1 }
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add r3, AO1, LDA
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fldmias r3, { s2 - s3 }
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add r3, r3, LDA
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fldmias r3, { s4 - s5 }
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add r3, r3, LDA
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fldmias r3, { s6 - s7 }
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fstmias BO2, { s0 - s7 }
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add AO1, AO1, #8
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add BO2, BO2, #32
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.endm
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.macro COPY1x4
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fldmias AO1, { s0 }
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add r3, AO1, LDA
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fldmias r3, { s1 }
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add r3, r3, LDA
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fldmias r3, { s2 }
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add r3, r3, LDA
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fldmias r3, { s3 }
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fstmias BO3, { s0 - s3 }
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add AO1, AO1, #4
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add BO3, BO3, #16
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.endm
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/*************************************************************************************************************************/
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.macro COPY4x2
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fldmias AO1, { s0 - s3 }
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add r3, AO1, LDA
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fldmias r3, { s4 - s7 }
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fstmias BO1, { s0 - s7 }
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add AO1, AO1, #16
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add BO1, BO1, M4
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.endm
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.macro COPY2x2
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fldmias AO1, { s0 - s1 }
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add r3, AO1, LDA
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fldmias r3, { s2 - s3 }
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fstmias BO2, { s0 - s3 }
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add AO1, AO1, #8
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add BO2, BO2, #16
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.endm
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.macro COPY1x2
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fldmias AO1, { s0 }
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add r3, AO1, LDA
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fldmias r3, { s1 }
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fstmias BO3, { s0 - s1 }
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add AO1, AO1, #4
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add BO3, BO3, #8
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.endm
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/*************************************************************************************************************************/
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.macro COPY4x1
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fldmias AO1, { s0 - s3 }
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fstmias BO1, { s0 - s3 }
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add AO1, AO1, #16
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add BO1, BO1, M4
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.endm
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.macro COPY2x1
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fldmias AO1, { s0 - s1 }
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fstmias BO2, { s0 - s1 }
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add AO1, AO1, #8
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add BO2, BO2, #8
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.endm
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.macro COPY1x1
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fldmias AO1, { s0 }
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fstmias BO3, { s0 }
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add AO1, AO1, #4
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add BO3, BO3, #4
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.endm
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/**************************************************************************************
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* End of macro definitions
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**************************************************************************************/
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PROLOGUE
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.align 5
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push {r4 - r9, fp}
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add fp, sp, #24
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sub sp, sp, #STACKSIZE // reserve stack
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str OLD_A, A // store A
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lsl LDA, OLD_LDA, #2 // lda = lda * SIZE
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sub r4, fp, #128
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vstm r4, { s8 - s15} // store floating point registers
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lsl r4 , M, #2 // M * SIZE
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ldr r3, B
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and BO2 , N , #-4
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and BO3 , N , #-2
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mul BO2, BO2, r4
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mul BO3, BO3, r4
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add BO2 , BO2, r3
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add BO3 , BO3, r3
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lsl M4, M, #4 // M4 = M * 4 * SIZE
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sgemm_tcopy_L4_BEGIN:
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asrs J, M, #2 // J = N / 4
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ble sgemm_tcopy_L2_BEGIN
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sgemm_tcopy_L4_M4_BEGIN:
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ldr AO1, A // AO1 = A
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lsl r3, LDA, #2 // r3 = 4 * LDA
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add r3, r3 , AO1 // A = A + 4 * LDA
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str r3, A // store A
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ldr BO1, B
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add r3, BO1, #64 // B = B + 16 * SIZE
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str r3, B
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asrs I, N, #2 // I = M / 4
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ble sgemm_tcopy_L4_M4_40
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sgemm_tcopy_L4_M4_20:
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COPY4x4_1
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subs I , I , #1
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ble sgemm_tcopy_L4_M4_40
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COPY4x4_2
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subs I , I , #1
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bne sgemm_tcopy_L4_M4_20
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sgemm_tcopy_L4_M4_40:
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tst N , #2
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ble sgemm_tcopy_L4_M4_60
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COPY2x4
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sgemm_tcopy_L4_M4_60:
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tst N, #1
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ble sgemm_tcopy_L4_M4_END
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COPY1x4
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sgemm_tcopy_L4_M4_END:
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subs J , J, #1 // j--
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bne sgemm_tcopy_L4_M4_BEGIN
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/*********************************************************************************************/
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sgemm_tcopy_L2_BEGIN:
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tst M, #3
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ble sgemm_tcopy_L999
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tst M, #2
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ble sgemm_tcopy_L1_BEGIN
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sgemm_tcopy_L2_M4_BEGIN:
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ldr AO1, A // AO1 = A
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lsl r3, LDA, #1 // r3 = 2 * LDA
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add r3, r3 , AO1 // A = A + 2 * LDA
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str r3, A // store A
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ldr BO1, B
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add r3, BO1, #32 // B = B + 8 * SIZE
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str r3, B
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asrs I, N, #2 // I = M / 4
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ble sgemm_tcopy_L2_M4_40
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sgemm_tcopy_L2_M4_20:
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COPY4x2
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subs I , I , #1
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bne sgemm_tcopy_L2_M4_20
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sgemm_tcopy_L2_M4_40:
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tst N , #2
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ble sgemm_tcopy_L2_M4_60
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COPY2x2
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sgemm_tcopy_L2_M4_60:
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tst N , #1
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ble sgemm_tcopy_L2_M4_END
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COPY1x2
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sgemm_tcopy_L2_M4_END:
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/*********************************************************************************************/
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sgemm_tcopy_L1_BEGIN:
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tst M, #1
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ble sgemm_tcopy_L999
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sgemm_tcopy_L1_M4_BEGIN:
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ldr AO1, A // AO1 = A
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add r3, LDA , AO1 // A = A + 1 * LDA
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str r3, A // store A
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ldr BO1, B
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add r3, BO1, #16 // B = B + 4 * SIZE
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str r3, B
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asrs I, N, #2 // I = M / 4
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ble sgemm_tcopy_L1_M4_40
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sgemm_tcopy_L1_M4_20:
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COPY4x1
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subs I , I , #1
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bne sgemm_tcopy_L1_M4_20
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sgemm_tcopy_L1_M4_40:
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tst N , #2
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ble sgemm_tcopy_L1_M4_60
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COPY2x1
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sgemm_tcopy_L1_M4_60:
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tst N , #1
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ble sgemm_tcopy_L1_M4_END
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COPY1x1
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sgemm_tcopy_L1_M4_END:
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sgemm_tcopy_L999:
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sub r3, fp, #128
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vldm r3, { s8 - s15} // restore floating point registers
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mov r0, #0 // set return value
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sub sp, fp, #24
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pop {r4 - r9, fp}
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bx lr
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EPILOGUE
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