--- /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"
+
+/* X0 X1 X2 s0 X3 x4 x5 x6 */
+/*int CNAME(BLASLONG bm,BLASLONG bn,BLASLONG bk,FLOAT alpha0,FLOAT* ba,FLOAT* bb,FLOAT* C,BLASLONG ldc */
+
+#define origM x0
+#define origN x1
+#define origK x2
+#define origPA x3
+#define origPB x4
+#define pC x5
+#define LDC x6
+#define temp x7
+#define counterL x8
+#define counterI x9
+#define counterJ x10
+#define pB x11
+#define pCRow0 x12
+#define pCRow1 x13
+#define pCRow2 x14
+#define pCRow3 x15
+#define pA x16
+#define alphaR x19
+#define alphaI x20
+
+#define alphaz_R z10.d
+#define alphaz_I z11.d
+#define alpha0_R d10
+#define alphaV0_R v10.d[0]
+#define alpha0_I d11
+#define alphaV0_I v11.d[0]
+
+
+#define A_PRE_SIZE 2560
+#define B_PRE_SIZE 448
+#define C_PRE_SIZE 128
+
+#if defined(NN) || defined(NT) || defined(TN) || defined(TT)
+#define OP_rr fmla
+#define OP_ii fmls
+#define OP_ri fmla
+#define OP_ir fmla
+#elif defined(NR) || defined(NC) || defined(TR) || defined(TC)
+#define OP_rr fmla
+#define OP_ii fmla
+#define OP_ri fmls
+#define OP_ir fmla
+#elif defined(RN) || defined(RT) || defined(CN) || defined(CT)
+#define OP_rr fmla
+#define OP_ii fmla
+#define OP_ri fmla
+#define OP_ir fmls
+#elif defined(RR) || defined(RC) || defined(CR) || defined(CC)
+#define OP_rr fmla
+#define OP_ii fmls
+#define OP_ri fmls
+#define OP_ir fmls
+#endif
+
+// 00 origM
+// 01 origN
+// 02 origK
+// 03 origPA
+// 04 origPB
+// 05 pC
+// 06 origLDC -> LDC
+// 07 offset -> temp
+// 08 counterL
+// 09 counterI
+// 10 counterJ
+// 11 pB
+// 12 pCRow0
+// 13 pCRow1
+// 14 pCRow2
+// 15 pCRow3
+// 16 pA
+// 17 alpha_save_R
+// 18 must save alpha_save_I
+// 19 must save
+// 20 must save
+// 21 must save
+// 22 must save
+// 23 must save
+// 24 must save
+// 25 must save
+// 26 must save
+// 27 must save
+// 28 must save
+// 29 frame
+// 30 link
+// 31 sp
+
+//v00 ALPHA_R -> pA00_R, pA01_R
+//v01 ALPHA_I -> pA00_I, pA01_I
+//v02 pA02_R, pA03_R
+//v03 pA02_I, pA03_I
+//v04 pA10_R, pA11_R
+//v05 pA10_I, pA11_I
+//v06 pA12_R, pA13_R
+//v07 pA12_I, pA13_I
+//v08 must save pB00_R, pB01_R
+//v09 must save pB00_I, pB01_I
+//v10 must save pB02_R, pB03_R OR ALPHA0_R
+//v11 must save pB02_I, pB03_I OR ALPHA0_I
+//v12 must save pB10_R, pB11_R
+//v13 must save pB10_I, pB11_I
+//v14 must save pB12_R, pB13_R OR ALPHA1_R
+//v15 must save pB12_I, pB13_I OR ALPHA1_R
+//v16 pC0R
+//v17 pC0I
+//v18 pC1R
+//v19 pC1I
+//v20 pC2R
+//v21 pC2I
+//v22 pC3R
+//v23 pC3I
+//v24 pC3R
+//v25 pC3I
+//v26 pC22_R, pC23_R
+//v27 pC22_I, pC23_I
+//v28 pC30_R, pC31_R
+//v29 pC30_I, pC31_I
+//v30 pC32_R, pC33_R
+//v31 pC32_I, pC33_I
+
+/*******************************************************************************
+* Macro definitions
+*******************************************************************************/
+
+.macro INITv1x4
+ dup z16.d, #0
+ dup z17.d, #0
+ dup z18.d, #0
+ dup z19.d, #0
+ dup z20.d, #0
+ dup z21.d, #0
+ dup z22.d, #0
+ dup z23.d, #0
+.endm
+
+.macro KERNELv1x4_I
+ ld2d {z0.d, z1.d}, p1/z, [pA]
+ ld2d {z2.d, z3.d}, p1/z, [pA, lanes, lsl #4] // next one
+ add pA, pA, lanes, lsl #5 // pA += lanes*2*2*8
+
+ ld1rd z8.d, p0/z, [pB]
+ ld1rd z9.d, p0/z, [pB, 8]
+ ld1rd z10.d, p0/z, [pB, 16]
+ ld1rd z11.d, p0/z, [pB, 24]
+ ld1rd z12.d, p0/z, [pB, 32]
+ ld1rd z13.d, p0/z, [pB, 40]
+ ld1rd z14.d, p0/z, [pB, 48]
+ ld1rd z15.d, p0/z, [pB, 56]
+
+ add pB, pB, 64
+
+ fmla z16.d, p1/m, z0.d, z8.d
+ OP_ir z17.d, p1/m, z1.d, z8.d
+ ld1rd z8.d, p0/z, [pB]
+#if defined(NR) || defined(NC) || defined(TR) || defined(TC) || \
+ defined(RR) || defined(RC) || defined(CR) || defined(CC)
+ #eor z17.16b, z17.16b, z17.16b
+ fmls z17.d, p1/m, z0.d, z9.d
+#else
+ fmla z17.d, p1/m, z0.d, z9.d
+#endif
+ OP_ii z16.d, p1/m, z1.d, z9.d
+ ld1rd z9.d, p0/z, [pB, 8]
+
+
+ fmla z18.d, p1/m, z0.d, z10.d
+ OP_ir z19.d, p1/m, z1.d, z10.d
+ ld1rd z10.d, p0/z, [pB, 16]
+ OP_ii z18.d, p1/m, z1.d, z11.d
+#if defined(NR) || defined(NC) || defined(TR) || defined(TC) || \
+ defined(RR) || defined(RC) || defined(CR) || defined(CC)
+ #eor z19.16b, z21.16b, z21.16b
+ fmls z19.d, p1/m, z0.d, z11.d
+#else
+ fmla z19.d, p1/m, z0.d, z11.d
+#endif
+ ld1rd z11.d, p0/z, [pB, 24]
+
+
+ fmla z20.d, p1/m, z0.d, z12.d
+ OP_ir z21.d, p1/m, z1.d, z12.d
+ ld1rd z12.d, p0/z, [pB, 32]
+#if defined(NR) || defined(NC) || defined(TR) || defined(TC) || \
+ defined(RR) || defined(RC) || defined(CR) || defined(CC)
+ #eor z21.16b, z23.16b, z23.16b
+ fmls z21.d, p1/m, z0.d, z13.d
+#else
+ fmla z21.d, p1/m, z0.d, z13.d
+#endif
+ OP_ii z20.d, p1/m, z1.d, z13.d
+ ld1rd z13.d, p0/z, [pB, 40]
+
+
+ fmla z22.d, p1/m, z0.d, z14.d
+ OP_ir z23.d, p1/m, z1.d, z14.d
+ ld1rd z14.d, p0/z, [pB, 48]
+#if defined(NR) || defined(NC) || defined(TR) || defined(TC) || \
+ defined(RR) || defined(RC) || defined(CR) || defined(CC)
+ #eor z23.16b, z19.16b, z19.16b
+ fmls z23.d, p1/m, z0.d, z15.d
+#else
+ fmla z23.d, p1/m, z0.d, z15.d
+#endif
+ OP_ii z22.d, p1/m, z1.d, z15.d
+ ld1rd z15.d, p0/z, [pB, 56]
+
+ add pB, pB, 64
+
+ prfm PLDL1KEEP, [pA, #A_PRE_SIZE+64]
+.endm
+
+.macro KERNELv1x4_M1
+ ld2d {z2.d, z3.d}, p1/z, [pA]
+ add pA, pA, lanes, lsl #4 // pA = pA + lanes * 2 * 8
+
+ OP_rr z16.d, p1/m, z0.d, z8.d
+ OP_ir z17.d, p1/m, z1.d, z8.d
+ ld1rd z8.d, p0/z, [pB]
+ OP_ii z16.d, p1/m, z1.d, z9.d
+ OP_ri z17.d, p1/m, z0.d, z9.d
+ ld1rd z9.d, p0/z, [pB, 8]
+
+ OP_rr z18.d, p1/m, z0.d, z10.d
+ OP_ir z19.d, p1/m, z1.d, z10.d
+ ld1rd z10.d, p0/z, [pB, 16]
+ OP_ii z18.d, p1/m, z1.d, z11.d
+ OP_ri z19.d, p1/m, z0.d, z11.d
+ ld1rd z11.d, p0/z, [pB, 24]
+
+ OP_rr z20.d, p1/m, z0.d, z12.d
+ OP_ir z21.d, p1/m, z1.d, z12.d
+ ld1rd z12.d, p0/z, [pB, 32]
+ OP_ii z20.d, p1/m, z1.d, z13.d
+ OP_ri z21.d, p1/m, z0.d, z13.d
+ ld1rd z13.d, p0/z, [pB, 40]
+
+ OP_rr z22.d, p1/m, z0.d, z14.d
+ OP_ir z23.d, p1/m, z1.d, z14.d
+ ld1rd z14.d, p0/z, [pB, 48]
+ OP_ii z22.d, p1/m, z1.d, z15.d
+ OP_ri z23.d, p1/m, z0.d, z15.d
+ ld1rd z15.d, p0/z, [pB, 56]
+
+ add pB, pB, 64
+ prfm PLDL1KEEP, [pA, #A_PRE_SIZE]
+
+ prfm PLDL1KEEP, [pA, #A_PRE_SIZE+64]
+.endm
+
+.macro KERNELv1x4_M2
+ ld2d {z2.d, z3.d}, p1/z, [pA]
+ add pA, pA, lanes, lsl #4 // pA = pA + lanes *2 * 8
+
+ OP_rr z16.d, p1/m, z2.d, z8.d
+ OP_ir z17.d, p1/m, z3.d, z8.d
+ ld1rd z8.d, p0/z, [pB]
+ OP_ii z16.d, p1/m, z3.d, z9.d
+ OP_ri z17.d, p1/m, z2.d, z9.d
+ ld1rd z9.d, p0/z, [pB, 8]
+
+ OP_rr z18.d, p1/m, z2.d, z10.d
+ OP_ir z19.d, p1/m, z3.d, z10.d
+ ld1rd z10.d, p0/z, [pB, 16]
+ OP_ii z18.d, p1/m, z3.d, z11.d
+ OP_ri z19.d, p1/m, z2.d, z11.d
+ ld1rd z11.d, p0/z, [pB, 24]
+
+ OP_rr z20.d, p1/m, z2.d, z12.d
+ OP_ir z21.d, p1/m, z3.d, z12.d
+ ld1rd z12.d, p0/z, [pB, 32]
+ OP_ii z20.d, p1/m, z3.d, z13.d
+ OP_ri z21.d, p1/m, z2.d, z13.d
+ ld1rd z13.d, p0/z, [pB, 40]
+
+ OP_rr z22.d, p1/m, z2.d, z14.d
+ OP_ir z23.d, p1/m, z3.d, z14.d
+ ld1rd z14.d, p0/z, [pB, 48]
+ OP_ii z22.d, p1/m, z3.d, z15.d
+ OP_ri z23.d, p1/m, z2.d, z15.d
+ ld1rd z15.d, p0/z, [pB, 56]
+
+ prfm PLDL1KEEP, [pB, #B_PRE_SIZE]
+
+ add pB, pB, 64
+
+ prfm PLDL1KEEP, [pB, #B_PRE_SIZE+64]
+.endm
+
+.macro KERNELv1x4_E
+ OP_rr z16.d, p1/m, z2.d, z8.d
+ OP_ir z17.d, p1/m, z3.d, z8.d
+ OP_ii z16.d, p1/m, z3.d, z9.d
+ OP_ri z17.d, p1/m, z2.d, z9.d
+
+ OP_rr z18.d, p1/m, z2.d, z10.d
+ OP_ir z19.d, p1/m, z3.d, z10.d
+ OP_ii z18.d, p1/m, z3.d, z11.d
+ OP_ri z19.d, p1/m, z2.d, z11.d
+
+ OP_rr z20.d, p1/m, z2.d, z12.d
+ OP_ir z21.d, p1/m, z3.d, z12.d
+ OP_ii z20.d, p1/m, z3.d, z13.d
+ OP_ri z21.d, p1/m, z2.d, z13.d
+
+ OP_rr z22.d, p1/m, z2.d, z14.d
+ OP_ir z23.d, p1/m, z3.d, z14.d
+ OP_ii z22.d, p1/m, z3.d, z15.d
+ OP_ri z23.d, p1/m, z2.d, z15.d
+
+ prfm PLDL1KEEP, [pB, #B_PRE_SIZE]
+
+ prfm PLDL1KEEP, [pB, #B_PRE_SIZE+64]
+
+.endm
+
+.macro KERNELv1x4_SUB
+ ld2d {z0.d, z1.d}, p1/z, [pA]
+ add pA, pA, lanes, lsl #4 // pA = pA + lanes* 2 * 8
+
+ ld1rd z8.d, p0/z, [pB]
+ ld1rd z9.d, p0/z, [pB, 8]
+ ld1rd z10.d, p0/z, [pB, 16]
+ ld1rd z11.d, p0/z, [pB, 24]
+
+ OP_rr z16.d, p1/m, z0.d, z8.d
+ OP_ir z17.d, p1/m, z1.d, z8.d
+ OP_ii z16.d, p1/m, z1.d, z9.d
+ OP_ri z17.d, p1/m, z0.d, z9.d
+
+ ld1rd z12.d, p0/z, [pB, 32]
+ ld1rd z13.d, p0/z, [pB, 40]
+ ld1rd z14.d, p0/z, [pB, 48]
+ ld1rd z15.d, p0/z, [pB, 56]
+
+ OP_rr z18.d, p1/m, z0.d, z10.d
+ OP_ir z19.d, p1/m, z1.d, z10.d
+ OP_ii z18.d, p1/m, z1.d, z11.d
+ OP_ri z19.d, p1/m, z0.d, z11.d
+
+ add pB, pB, 64
+
+ OP_rr z20.d, p1/m, z0.d, z12.d
+ OP_ir z21.d, p1/m, z1.d, z12.d
+ OP_ii z20.d, p1/m, z1.d, z13.d
+ OP_ri z21.d, p1/m, z0.d, z13.d
+
+ OP_rr z22.d, p1/m, z0.d, z14.d
+ OP_ir z23.d, p1/m, z1.d, z14.d
+ OP_ii z22.d, p1/m, z1.d, z15.d
+ OP_ri z23.d, p1/m, z0.d, z15.d
+
+ prfm PLDL1KEEP, [pB, #B_PRE_SIZE]
+ prfm PLDL1KEEP, [pA, #A_PRE_SIZE]
+.endm
+
+.macro SAVEv1x4
+ prfm PLDL2KEEP, [pCRow0, #C_PRE_SIZE]
+
+ ld2d {z24.d, z25.d}, p1/z, [pCRow0]
+ fmla z24.d, p1/m, z16.d, alphaz_R
+ fmls z24.d, p1/m, z17.d, alphaz_I
+ fmla z25.d, p1/m, z16.d, alphaz_I
+ fmla z25.d, p1/m, z17.d, alphaz_R
+ st2d {z25.d, z26.d}, p1, [pCRow0]
+
+ add pCRow0, pCRow0, #32
+
+ ld2d {z26.d, z27.d}, p1/z, [pCRow0]
+ fmla z26.d, p1/m, z18.d, alphaz_R
+ fmls z26.d, p1/m, z19.d, alphaz_I
+ fmla z27.d, p1/m, z18.d, alphaz_I
+ fmla z27.d, p1/m, z19.d, alphaz_R
+ st2d {z26.d, z27.d}, p1, [pCRow0]
+
+ add pCRow0, pCRow0, #32
+ prfm PLDL2KEEP, [pCRow1, #C_PRE_SIZE]
+
+ ld2d {z28.d, z29.d}, p1/z, [pCRow1]
+ fmla z28.d, p1/m, z20.d, alphaz_R
+ fmls z28.d, p1/m, z21.d, alphaz_I
+ fmla z29.d, p1/m, z20.d, alphaz_I
+ fmla z29.d, p1/m, z21.d, alphaz_R
+ st2d {z28.d, z29.d}, p1, [pCRow1]
+
+ add pCRow1, pCRow1, #32
+
+ ld2d {z30.d, z31.d}, p1/z, [pCRow1]
+ fmla z30.d, p1/m, z22.d, alphaz_R
+ fmls z30.d, p1/m, z23.d, alphaz_I
+ fmla z31.d, p1/m, z22.d, alphaz_I
+ fmla z31.d, p1/m, z23.d, alphaz_R
+ st2d {z30.d, z31.d}, p1, [pCRow1]
+
+ prfm PLDL2KEEP, [pCRow2, #C_PRE_SIZE]
+
+ add pCRow0, pCRow0, lanes, lsl #4 // pC = pC + lanes * 2 *8
+
+ prfm PLDL2KEEP, [pCRow3, #C_PRE_SIZE]
+
+.endm
+
+/******************************************************************************/
+
+
+.macro INITv1x2
+ dup z16.d, #0
+ dup z17.d, #0
+ dup z18.d, #0
+ dup z19.d, #0
+.endm
+
+.macro KERNELv1x2_SUB
+ ld2d {z0.d, z1.d}, p1/z, [pA]
+ add pA, pA, lanes, lsl #4 // pA = pA + lanes* 2 * 8
+
+ ld1rd z8.d, p0/z, [pB]
+ ld1rd z9.d, p0/z, [pB, 8]
+ ld1rd z10.d, p0/z, [pB, 16]
+ ld1rd z11.d, p0/z, [pB, 24]
+
+ OP_rr z16.d, p1/m, z0.d, z8.d
+ OP_ir z17.d, p1/m, z1.d, z8.d
+ OP_ii z16.d, p1/m, z1.d, z9.d
+ OP_ri z17.d, p1/m, z0.d, z9.d
+
+ OP_rr z18.d, p1/m, z0.d, z10.d
+ OP_ir z19.d, p1/m, z1.d, z10.d
+ OP_ii z18.d, p1/m, z1.d, z11.d
+ OP_ri z19.d, p1/m, z0.d, z11.d
+
+ add pB, pB, 32
+.endm
+
+.macro SAVEv1x2
+ prfm PLDL2KEEP, [pCRow0, #C_PRE_SIZE]
+
+ ld2d {z24.d, z25.d}, p1/z, [pCRow0]
+ fmla z24.d, p1/m, z16.d, alphaz_R
+ fmls z24.d, p1/m, z17.d, alphaz_I
+ fmla z25.d, p1/m, z16.d, alphaz_I
+ fmla z25.d, p1/m, z17.d, alphaz_R
+ st2d {z25.d, z26.d}, p1, [pCRow0]
+
+ add pCRow0, pCRow0, #32
+
+ ld2d {z26.d, z27.d}, p1/z, [pCRow0]
+ fmla z26.d, p1/m, z18.d, alphaz_R
+ fmls z26.d, p1/m, z19.d, alphaz_I
+ fmla z27.d, p1/m, z18.d, alphaz_I
+ fmla z27.d, p1/m, z19.d, alphaz_R
+ st2d {z26.d, z27.d}, p1, [pCRow0]
+
+ add pCRow0, pCRow0, #32
+ prfm PLDL2KEEP, [pCRow1, #C_PRE_SIZE]
+
+ prfm PLDL2KEEP, [pCRow2, #C_PRE_SIZE]
+
+ add pCRow0, pCRow0, lanes, lsl #4 // pC = pC + lanes * 2 *8
+
+.endm
+
+/******************************************************************************/
+
+
+.macro INITv1x1
+ dup z16.d, #0
+ dup z17.d, #0
+.endm
+
+
+.macro KERNELv1x1_SUB
+ ld2d {z0.d, z1.d}, p1/z, [pA]
+ add pA, pA, lanes, lsl #4 // pA = pA + lanes* 2 * 8
+
+ ld1rd z8.d, p0/z, [pB]
+ ld1rd z9.d, p0/z, [pB, 8]
+
+ add pB, pB, 16
+
+ OP_rr z16.d, p1/m, z0.d, z8.d
+ OP_ir z17.d, p1/m, z1.d, z8.d
+ OP_ii z16.d, p1/m, z1.d, z9.d
+ OP_ri z17.d, p1/m, z0.d, z9.d
+.endm
+
+.macro SAVEv1x1
+ prfm PLDL2KEEP, [pCRow0, #C_PRE_SIZE]
+
+ ld2d {z24.d, z25.d}, p1/z, [pCRow0]
+ fmla z24.d, p1/m, z16.d, alphaz_R
+ fmls z24.d, p1/m, z17.d, alphaz_I
+ fmla z25.d, p1/m, z16.d, alphaz_I
+ fmla z25.d, p1/m, z17.d, alphaz_R
+ st2d {z25.d, z26.d}, p1, [pCRow0]
+
+ add pCRow0, pCRow0, #32
+
+
+ add pCRow0, pCRow0, lanes, lsl #4 // pC = pC + lanes * 2 *8
+
+ prfm PLDL2KEEP, [pCRow3, #C_PRE_SIZE]
+
+.endm
+
+/******************************************************************************/
+
+/*******************************************************************************
+* End of macro definitions
+*******************************************************************************/
+
+ PROLOGUE
+
+ .align 5
+ add sp, sp, #-(11 * 16)
+ stp d8, d9, [sp, #(0 * 16)]
+ stp d10, d11, [sp, #(1 * 16)]
+ stp d12, d13, [sp, #(2 * 16)]
+ stp d14, d15, [sp, #(3 * 16)]
+ stp d16, d17, [sp, #(4 * 16)]
+ stp x18, x19, [sp, #(5 * 16)]
+ stp x20, x21, [sp, #(6 * 16)]
+ stp x22, x23, [sp, #(7 * 16)]
+ stp x24, x25, [sp, #(8 * 16)]
+ stp x26, x27, [sp, #(9 * 16)]
+ str x28, [sp, #(10 * 16)]
+
+ prfm PLDL1KEEP, [origPB]
+ prfm PLDL1KEEP, [origPA]
+
+ fmov alphaR, d0
+ fmov alphaI, d1
+
+ lsl LDC, LDC, #4 // ldc = ldc * 2 * 8
+
+ mov pB, origPB
+
+ mov counterJ, origN
+ asr counterJ, counterJ, #2 // J = J / 4
+ cmp counterJ, #0
+ ble .Lzgemm_kernel_L2_BEGIN
+
+.Lzgemm_kernel_L4_BEGIN:
+ mov pCRow0, pC
+ add pCRow1, pCRow0, LDC
+ add pCRow2, pCRow1, LDC
+ add pCRow3, pCRow2, LDC
+
+ add pC, pCRow3, LDC
+
+ mov pA, origPA // pA = start of A array
+
+.Lzgemm_kernel_L4_M4_BEGIN:
+
+ mov counterI, origM
+ asr counterI, counterI, #2 // counterI = counterI / 4
+ cmp counterI, #0
+ ble .Lzgemm_kernel_L4_M2_BEGIN
+
+ .align 5
+.Lzgemm_kernel_L4_M4_20:
+
+ mov pB, origPB
+ asr counterL , origK, #3
+ cmp counterL , #2
+ blt .Lzgemm_kernel_L4_M4_32
+
+ KERNEL4x4_I
+ KERNEL4x4_M2
+ KERNEL4x4_M1
+ KERNEL4x4_M2
+ KERNEL4x4_M1
+ KERNEL4x4_M2
+ KERNEL4x4_M1
+ KERNEL4x4_M2
+
+ subs counterL, counterL, #2 // subtract 2
+ ble .Lzgemm_kernel_L4_M4_22a
+
+ .align 5
+.Lzgemm_kernel_L4_M4_22:
+
+ KERNEL4x4_M1
+ KERNEL4x4_M2
+ KERNEL4x4_M1
+ KERNEL4x4_M2
+ KERNEL4x4_M1
+ KERNEL4x4_M2
+ KERNEL4x4_M1
+ KERNEL4x4_M2
+
+ subs counterL, counterL, #1
+ bgt .Lzgemm_kernel_L4_M4_22
+
+ .align 5
+.Lzgemm_kernel_L4_M4_22a:
+
+ KERNEL4x4_M1
+ KERNEL4x4_M2
+ KERNEL4x4_M1
+ KERNEL4x4_M2
+ KERNEL4x4_M1
+ KERNEL4x4_M2
+ KERNEL4x4_M1
+ KERNEL4x4_E
+
+ b .Lzgemm_kernel_L4_M4_44
+
+ .align 5
+.Lzgemm_kernel_L4_M4_32:
+
+ tst counterL, #1
+ ble .Lzgemm_kernel_L4_M4_40
+
+ KERNEL4x4_I
+ KERNEL4x4_M2
+ KERNEL4x4_M1
+ KERNEL4x4_M2
+ KERNEL4x4_M1
+ KERNEL4x4_M2
+ KERNEL4x4_M1
+ KERNEL4x4_E
+
+ b .Lzgemm_kernel_L4_M4_44
+
+
+.Lzgemm_kernel_L4_M4_40:
+
+ INIT4x4
+
+.Lzgemm_kernel_L4_M4_44:
+
+ ands counterL , origK, #7
+ ble .Lzgemm_kernel_L4_M4_100
+
+ .align 5
+.Lzgemm_kernel_L4_M4_46:
+ KERNEL4x4_SUB
+
+ subs counterL, counterL, #1
+ bne .Lzgemm_kernel_L4_M4_46
+
+.Lzgemm_kernel_L4_M4_100:
+ prfm PLDL1KEEP, [pA]
+ prfm PLDL1KEEP, [pA, #64]
+ prfm PLDL1KEEP, [origPB]
+
+ SAVE4x4
+
+.Lzgemm_kernel_L4_M4_END:
+ subs counterI, counterI, #1
+ bne .Lzgemm_kernel_L4_M4_20
+
+.Lzgemm_kernel_L4_M2_BEGIN:
+
+ mov counterI, origM
+ tst counterI , #3
+ ble .Lzgemm_kernel_L4_END
+
+ tst counterI, #2 // counterI = counterI / 2
+ ble .Lzgemm_kernel_L4_M1_BEGIN
+
+.Lzgemm_kernel_L4_M2_20:
+
+ INIT2x4
+
+ mov pB, origPB
+ asr counterL , origK, #3 // counterL = counterL / 8
+ cmp counterL , #0
+ ble .Lzgemm_kernel_L4_M2_40
+
+.Lzgemm_kernel_L4_M2_22:
+
+ KERNEL2x4_SUB
+ KERNEL2x4_SUB
+ KERNEL2x4_SUB
+ KERNEL2x4_SUB
+
+ KERNEL2x4_SUB
+ KERNEL2x4_SUB
+ KERNEL2x4_SUB
+ KERNEL2x4_SUB
+
+ subs counterL, counterL, #1
+ bgt .Lzgemm_kernel_L4_M2_22
+
+
+.Lzgemm_kernel_L4_M2_40:
+
+ ands counterL , origK, #7 // counterL = counterL % 8
+ ble .Lzgemm_kernel_L4_M2_100
+
+.Lzgemm_kernel_L4_M2_42:
+
+ KERNEL2x4_SUB
+
+ subs counterL, counterL, #1
+ bgt .Lzgemm_kernel_L4_M2_42
+
+.Lzgemm_kernel_L4_M2_100:
+
+ SAVE2x4
+
+.Lzgemm_kernel_L4_M2_END:
+
+
+.Lzgemm_kernel_L4_M1_BEGIN:
+
+ tst counterI, #1 // counterI = counterI % 2
+ ble .Lzgemm_kernel_L4_END
+
+.Lzgemm_kernel_L4_M1_20:
+
+ INIT1x4
+
+ mov pB, origPB
+ asr counterL , origK, #3 // counterL = counterL / 8
+ cmp counterL , #0
+ ble .Lzgemm_kernel_L4_M1_40
+
+.Lzgemm_kernel_L4_M1_22:
+ KERNEL1x4_SUB
+ KERNEL1x4_SUB
+ KERNEL1x4_SUB
+ KERNEL1x4_SUB
+
+ KERNEL1x4_SUB
+ KERNEL1x4_SUB
+ KERNEL1x4_SUB
+ KERNEL1x4_SUB
+
+ subs counterL, counterL, #1
+ bgt .Lzgemm_kernel_L4_M1_22
+
+
+.Lzgemm_kernel_L4_M1_40:
+
+ ands counterL , origK, #7 // counterL = counterL % 8
+ ble .Lzgemm_kernel_L4_M1_100
+
+.Lzgemm_kernel_L4_M1_42:
+
+ KERNEL1x4_SUB
+
+ subs counterL, counterL, #1
+ bgt .Lzgemm_kernel_L4_M1_42
+
+.Lzgemm_kernel_L4_M1_100:
+
+ SAVE1x4
+
+
+.Lzgemm_kernel_L4_END:
+
+ lsl temp, origK, #6
+ add origPB, origPB, temp // B = B + K * 4 * 8 * 2
+
+ subs counterJ, counterJ , #1 // j--
+ bgt .Lzgemm_kernel_L4_BEGIN
+
+
+/******************************************************************************/
+
+.Lzgemm_kernel_L2_BEGIN: // less than 2 left in N direction
+
+ mov counterJ , origN
+ tst counterJ , #3
+ ble .Lzgemm_kernel_L999
+
+ tst counterJ , #2
+ ble .Lzgemm_kernel_L1_BEGIN
+
+ mov pCRow0, pC // pCRow0 = pC
+
+ add pC,pC,LDC, lsl #1
+
+ mov pA, origPA // pA = A
+
+
+
+.Lzgemm_kernel_L2_M4_BEGIN:
+
+ mov counterI, origM
+ asr counterI, counterI, #2 // counterI = counterI / 4
+ cmp counterI,#0
+ ble .Lzgemm_kernel_L2_M2_BEGIN
+
+.Lzgemm_kernel_L2_M4_20:
+
+ INIT4x2
+
+ mov pB, origPB
+ asr counterL , origK, #3 // counterL = counterL / 8
+ cmp counterL,#0
+ ble .Lzgemm_kernel_L2_M4_40
+ .align 5
+
+.Lzgemm_kernel_L2_M4_22:
+ KERNEL4x2_SUB
+ KERNEL4x2_SUB
+ KERNEL4x2_SUB
+ KERNEL4x2_SUB
+
+ KERNEL4x2_SUB
+ KERNEL4x2_SUB
+ KERNEL4x2_SUB
+ KERNEL4x2_SUB
+
+ subs counterL, counterL, #1
+ bgt .Lzgemm_kernel_L2_M4_22
+
+
+.Lzgemm_kernel_L2_M4_40:
+
+ ands counterL , origK, #7 // counterL = counterL % 8
+ ble .Lzgemm_kernel_L2_M4_100
+
+.Lzgemm_kernel_L2_M4_42:
+
+ KERNEL4x2_SUB
+
+ subs counterL, counterL, #1
+ bgt .Lzgemm_kernel_L2_M4_42
+
+.Lzgemm_kernel_L2_M4_100:
+
+ SAVE4x2
+
+.Lzgemm_kernel_L2_M4_END:
+
+ subs counterI, counterI, #1
+ bgt .Lzgemm_kernel_L2_M4_20
+
+
+.Lzgemm_kernel_L2_M2_BEGIN:
+
+ mov counterI, origM
+ tst counterI , #3
+ ble .Lzgemm_kernel_L2_END
+
+ tst counterI, #2 // counterI = counterI / 2
+ ble .Lzgemm_kernel_L2_M1_BEGIN
+
+.Lzgemm_kernel_L2_M2_20:
+
+ INIT2x2
+
+ mov pB, origPB
+ asr counterL , origK, #3 // counterL = counterL / 8
+ cmp counterL,#0
+ ble .Lzgemm_kernel_L2_M2_40
+
+.Lzgemm_kernel_L2_M2_22:
+
+ KERNEL2x2_SUB
+ KERNEL2x2_SUB
+ KERNEL2x2_SUB
+ KERNEL2x2_SUB
+
+ KERNEL2x2_SUB
+ KERNEL2x2_SUB
+ KERNEL2x2_SUB
+ KERNEL2x2_SUB
+
+ subs counterL, counterL, #1
+ bgt .Lzgemm_kernel_L2_M2_22
+
+
+.Lzgemm_kernel_L2_M2_40:
+
+ ands counterL , origK, #7 // counterL = counterL % 8
+ ble .Lzgemm_kernel_L2_M2_100
+
+.Lzgemm_kernel_L2_M2_42:
+
+ KERNEL2x2_SUB
+
+ subs counterL, counterL, #1
+ bgt .Lzgemm_kernel_L2_M2_42
+
+.Lzgemm_kernel_L2_M2_100:
+
+ SAVE2x2
+
+.Lzgemm_kernel_L2_M2_END:
+
+
+.Lzgemm_kernel_L2_M1_BEGIN:
+
+ tst counterI, #1 // counterI = counterI % 2
+ ble .Lzgemm_kernel_L2_END
+
+.Lzgemm_kernel_L2_M1_20:
+
+ INIT1x2
+
+ mov pB, origPB
+ asr counterL , origK, #3 // counterL = counterL / 8
+ cmp counterL, #0
+ ble .Lzgemm_kernel_L2_M1_40
+
+.Lzgemm_kernel_L2_M1_22:
+ KERNEL1x2_SUB
+ KERNEL1x2_SUB
+ KERNEL1x2_SUB
+ KERNEL1x2_SUB
+
+ KERNEL1x2_SUB
+ KERNEL1x2_SUB
+ KERNEL1x2_SUB
+ KERNEL1x2_SUB
+
+ subs counterL, counterL, #1
+ bgt .Lzgemm_kernel_L2_M1_22
+
+
+.Lzgemm_kernel_L2_M1_40:
+
+ ands counterL , origK, #7 // counterL = counterL % 8
+ ble .Lzgemm_kernel_L2_M1_100
+
+.Lzgemm_kernel_L2_M1_42:
+
+ KERNEL1x2_SUB
+
+ subs counterL, counterL, #1
+ bgt .Lzgemm_kernel_L2_M1_42
+
+.Lzgemm_kernel_L2_M1_100:
+
+ SAVE1x2
+
+
+.Lzgemm_kernel_L2_END:
+ lsl temp, origK, #5
+ add origPB, origPB, temp // B = B + K * 2 * 8 * 2
+
+/******************************************************************************/
+
+.Lzgemm_kernel_L1_BEGIN:
+
+ mov counterJ , origN
+ tst counterJ , #1
+ ble .Lzgemm_kernel_L999 // done
+
+
+ mov pCRow0, pC // pCRow0 = C
+ add pC , pC , LDC // Update pC to point to next
+
+ mov pA, origPA // pA = A
+
+
+
+.Lzgemm_kernel_L1_M4_BEGIN:
+
+ mov counterI, origM
+ asr counterI, counterI, #2 // counterI = counterI / 4
+ cmp counterI, #0
+ ble .Lzgemm_kernel_L1_M2_BEGIN
+
+.Lzgemm_kernel_L1_M4_20:
+
+ INIT4x1
+
+ mov pB, origPB
+ asr counterL , origK, #3 // counterL = counterL / 8
+ cmp counterL , #0
+ ble .Lzgemm_kernel_L1_M4_40
+ .align 5
+
+.Lzgemm_kernel_L1_M4_22:
+ KERNEL4x1_SUB
+ KERNEL4x1_SUB
+ KERNEL4x1_SUB
+ KERNEL4x1_SUB
+
+ KERNEL4x1_SUB
+ KERNEL4x1_SUB
+ KERNEL4x1_SUB
+ KERNEL4x1_SUB
+
+ subs counterL, counterL, #1
+ bgt .Lzgemm_kernel_L1_M4_22
+
+
+.Lzgemm_kernel_L1_M4_40:
+
+ ands counterL , origK, #7 // counterL = counterL % 8
+ ble .Lzgemm_kernel_L1_M4_100
+
+.Lzgemm_kernel_L1_M4_42:
+
+ KERNEL4x1_SUB
+
+ subs counterL, counterL, #1
+ bgt .Lzgemm_kernel_L1_M4_42
+
+.Lzgemm_kernel_L1_M4_100:
+
+ SAVE4x1
+
+.Lzgemm_kernel_L1_M4_END:
+
+ subs counterI, counterI, #1
+ bgt .Lzgemm_kernel_L1_M4_20
+
+
+.Lzgemm_kernel_L1_M2_BEGIN:
+
+ mov counterI, origM
+ tst counterI , #3
+ ble .Lzgemm_kernel_L1_END
+
+ tst counterI, #2 // counterI = counterI / 2
+ ble .Lzgemm_kernel_L1_M1_BEGIN
+
+.Lzgemm_kernel_L1_M2_20:
+
+ INIT2x1
+
+ mov pB, origPB
+ asr counterL , origK, #3 // counterL = counterL / 8
+ cmp counterL , #0
+ ble .Lzgemm_kernel_L1_M2_40
+
+.Lzgemm_kernel_L1_M2_22:
+
+ KERNEL2x1_SUB
+ KERNEL2x1_SUB
+ KERNEL2x1_SUB
+ KERNEL2x1_SUB
+
+ KERNEL2x1_SUB
+ KERNEL2x1_SUB
+ KERNEL2x1_SUB
+ KERNEL2x1_SUB
+
+ subs counterL, counterL, #1
+ bgt .Lzgemm_kernel_L1_M2_22
+
+
+.Lzgemm_kernel_L1_M2_40:
+
+ ands counterL , origK, #7 // counterL = counterL % 8
+ ble .Lzgemm_kernel_L1_M2_100
+
+.Lzgemm_kernel_L1_M2_42:
+
+ KERNEL2x1_SUB
+
+ subs counterL, counterL, #1
+ bgt .Lzgemm_kernel_L1_M2_42
+
+.Lzgemm_kernel_L1_M2_100:
+
+ SAVE2x1
+
+.Lzgemm_kernel_L1_M2_END:
+
+
+.Lzgemm_kernel_L1_M1_BEGIN:
+
+ tst counterI, #1 // counterI = counterI % 2
+ ble .Lzgemm_kernel_L1_END
+
+.Lzgemm_kernel_L1_M1_20:
+
+ INIT1x1
+
+ mov pB, origPB
+ asr counterL , origK, #3 // counterL = counterL / 8
+ cmp counterL , #0
+ ble .Lzgemm_kernel_L1_M1_40
+
+.Lzgemm_kernel_L1_M1_22:
+ KERNEL1x1_SUB
+ KERNEL1x1_SUB
+ KERNEL1x1_SUB
+ KERNEL1x1_SUB
+
+ KERNEL1x1_SUB
+ KERNEL1x1_SUB
+ KERNEL1x1_SUB
+ KERNEL1x1_SUB
+
+ subs counterL, counterL, #1
+ bgt .Lzgemm_kernel_L1_M1_22
+
+
+.Lzgemm_kernel_L1_M1_40:
+
+ ands counterL , origK, #7 // counterL = counterL % 8
+ ble .Lzgemm_kernel_L1_M1_100
+
+.Lzgemm_kernel_L1_M1_42:
+
+ KERNEL1x1_SUB
+
+ subs counterL, counterL, #1
+ bgt .Lzgemm_kernel_L1_M1_42
+
+.Lzgemm_kernel_L1_M1_100:
+
+ SAVE1x1
+
+
+.Lzgemm_kernel_L1_END:
+
+
+.Lzgemm_kernel_L999:
+ mov x0, #0 // set return value
+ ldp d8, d9, [sp, #(0 * 16)]
+ ldp d10, d11, [sp, #(1 * 16)]
+ ldp d12, d13, [sp, #(2 * 16)]
+ ldp d14, d15, [sp, #(3 * 16)]
+ ldp d16, d17, [sp, #(4 * 16)]
+ ldp x18, x19, [sp, #(5 * 16)]
+ ldp x20, x21, [sp, #(6 * 16)]
+ ldp x22, x23, [sp, #(7 * 16)]
+ ldp x24, x25, [sp, #(8 * 16)]
+ ldp x26, x27, [sp, #(9 * 16)]
+ ldr x28, [sp, #(10 * 16)]
+ add sp, sp, #(11*16)
+ ret
+
+ EPILOGUE
+