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// Auto-generated file. Do not edit!
// Template: src/f32-gemm/6x8-aarch64-neonfma-cortex-a55.S.in
// Generator: tools/xngen
//
// Copyright 2019 Google LLC
//
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the root directory of this source tree.
#include <xnnpack/assembly.h>
# void xnn_f32_gemminc_minmax_ukernel_6x8__aarch64_neonfma_cortex_a55(
# size_t mr, x0
# size_t nc, x1
# size_t kc, x2 / x0
# const uint8_t*restrict a, x3
# size_t a_stride, x4
# const void*restrict w, x5
# uint8_t*restrict c, x6
# size_t cm_stride, x7
# size_t cn_stride, [sp] -> (x0)
# const float*restrict acc, [sp + 8] -> x15
# const union xnn_f32_minmax_params params[restrict XNN_MIN_ELEMENTS(1)]) [sp + 16] -> (x8)
# d8-d15, x19-x30 need to be preserved if used. x18 is reserved by the OS.
# Register usage
# A0 x3 v0 v3
# A1 x9 v0[1] v3[1]
# A2 x10 v1 v4
# A3 x11 v1[1] v4[1]
# A4 x12 v2 v5
# A5 x4 v2[1] v5[1]
# B x5 v12 v13 v14 v15 second set of B
# B v16 v17 v18 v19 first set
# C0 x6 v20 v21
# C1 x16 v22 v23
# C2 x17 v24 v25
# C3 x14 v26 v27
# C4 x13 v28 v29
# C5 x7 v30 v31
# Clamp v6 v7
# unused A v8 v9 v10 v11
# x8 temporary vector shadow register
BEGIN_FUNCTION xnn_f32_gemminc_minmax_ukernel_6x8__aarch64_neonfma_cortex_a55
# Load acc, params pointer
LDP x15, x8, [sp, 8]
# Clamp A and C pointers
CMP x0, 2 // if mr < 2
ADD x9, x3, x4 // a1 = a0 + a_stride
ADD x16, x6, x7 // c1 = c0 + cm_stride
CSEL x9, x3, x9, LO // a1 = a0
CSEL x16, x6, x16, LO // c1 = c0
ADD x10, x9, x4 // a2 = a1 + a_stride
ADD x17, x16, x7 // c2 = c1 + cm_stride
// if mr <= 2
CSEL x10, x9, x10, LS // a2 = a1
CSEL x17, x16, x17, LS // c2 = c1
CMP x0, 4 // if mr < 4
ADD x11, x10, x4 // a3 = a2 + a_stride
ADD x14, x17, x7 // c3 = c2 + cm_stride
CSEL x11, x10, x11, LO // a3 = a2
CSEL x14, x17, x14, LO // c3 = c2
ADD x12, x11, x4 // a4 = a3 + a_stride
ADD x13, x14, x7 // c4 = c3 + cm_stride
// if mr <= 4
CSEL x12, x11, x12, LS // a4 = a3
CSEL x13, x14, x13, LS // c4 = c3
CMP x0, 6 // if mr < 6
ADD x4, x12, x4 // a5 = a4 + a_stride
ADD x7, x13, x7 // c5 = c4 + cm_stride
CSEL x4, x12, x4, LO // a5 = a4
CSEL x7, x13, x7, LO // c5 = c4
# Load min/max values
LD2R {v6.4s, v7.4s}, [x8]
# Save d12-d15 on stack
STP d12, d13, [sp, -32]!
STP d14, d15, [sp, 16]
0:
# Load initial accumulators
LDP q20, q21, [x15], 32
LDP q22, q23, [x15], 32
LDP q24, q25, [x15], 32
LDP q26, q27, [x15], 32
LDP q28, q29, [x15], 32
LDP q30, q31, [x15], 32
SUBS x0, x2, 16 // k = kc - 16
PRFM PLDL1KEEP, [x3, 0] // Prefetch A
PRFM PLDL1KEEP, [x3, 64]
PRFM PLDL1KEEP, [x9, 0]
PRFM PLDL1KEEP, [x9, 64]
PRFM PLDL1KEEP, [x10, 0]
PRFM PLDL1KEEP, [x10, 64]
PRFM PLDL1KEEP, [x11, 0]
PRFM PLDL1KEEP, [x11, 64]
PRFM PLDL1KEEP, [x12, 0]
PRFM PLDL1KEEP, [x12, 64]
PRFM PLDL1KEEP, [x4, 0]
PRFM PLDL1KEEP, [x4, 64]
PRFM PLDL1KEEP, [x5, 0] // Prefetch B
PRFM PLDL1KEEP, [x5, 64]
PRFM PLDL1KEEP, [x5, 128]
PRFM PLDL1KEEP, [x5, 192]
PRFM PLDL1KEEP, [x5, 256]
PRFM PLDL1KEEP, [x5, 320]
# Is there at least 4 floats (16 bytes) for prologue + epilogue?
B.LO 4f
# Prologue - First group loads, no FMA
LDR d0, [x3], 8 // a0
LDP q16, q17, [x5], 32 // b
LDR d1, [x10], 8 // a2
LDR d2, [x12], 8 // a4
LD1 {v0.d}[1], [x9], 8 // a1
LD1 {v1.d}[1], [x11], 8 // a3
LD1 {v2.d}[1], [x4], 8 // a5
SUBS x0, x0, 16
LDR q18, [x5], 16
LDR d19, [x5], 8
LDR x8, [x5], 8 // ins is in BLOCK 0
# Is there at least 4 floats (16 bytes) for main loop?
B.LO 2f
# Main loop - 4 floats of A (16 bytes)
# 48 FMA + 12 LD64 A + 8 LDR B
1:
# First group of 24 FMA, Second group loads
# BLOCK 0
FMLA v20.4s, v16.4s, v0.s[0]
LDR d3, [x3], 8 // a0
FMLA v22.4s, v16.4s, v0.s[2]
INS v19.d[1], x8 // b from second group
FMLA v24.4s, v16.4s, v1.s[0]
LDR x8, [x9], 8 // a1
# BLOCK 1
FMLA v26.4s, v16.4s, v1.s[2]
LDR d12, [x5]
FMLA v28.4s, v16.4s, v2.s[0]
INS v3.d[1], x8 // a1 ins
FMLA v30.4s, v16.4s, v2.s[2]
LDR x8, [x5, 8] // b
# BLOCK 2
FMLA v21.4s, v17.4s, v0.s[0]
LDR d4, [x10], 8 // a2
FMLA v23.4s, v17.4s, v0.s[2]
INS v12.d[1], x8 // b ins
FMLA v25.4s, v17.4s, v1.s[0]
LDR x8, [x11], 8 // a3
# BLOCK 3
FMLA v27.4s, v17.4s, v1.s[2]
LDR d5, [x12], 8 // a4
FMLA v29.4s, v17.4s, v2.s[0]
INS v4.d[1], x8 // a3 ins
FMLA v31.4s, v17.4s, v2.s[2]
LDR x8, [x4], 8 // a5
# BLOCK 4
FMLA v20.4s, v18.4s, v0.s[1]
LDR d13, [x5, 16]
FMLA v22.4s, v18.4s, v0.s[3]
INS v5.d[1], x8 // a5 ins
FMLA v24.4s, v18.4s, v1.s[1]
LDR x8, [x5, 24]
# BLOCK 5
FMLA v26.4s, v18.4s, v1.s[3]
LDR d14, [x5, 32]
FMLA v28.4s, v18.4s, v2.s[1]
INS v13.d[1], x8 // b
FMLA v30.4s, v18.4s, v2.s[3]
LDR x8, [x5, 40]
# BLOCK 6
FMLA v21.4s, v19.4s, v0.s[1]
LDR d15, [x5, 48]
FMLA v23.4s, v19.4s, v0.s[3]
INS v14.d[1], x8 // b
FMLA v25.4s, v19.4s, v1.s[1]
LDR x8, [x5, 56]
# BLOCK 7
FMLA v27.4s, v19.4s, v1.s[3]
FMLA v29.4s, v19.4s, v2.s[1]
INS v15.d[1], x8
FMLA v31.4s, v19.4s, v2.s[3]
# Second group of 24 FMA, First group of loads
# BLOCK 0
FMLA v20.4s, v12.4s, v3.s[0]
LDR d0, [x3], 8 // a0
FMLA v22.4s, v12.4s, v3.s[2]
FMLA v24.4s, v12.4s, v4.s[0]
LDR x8, [x9], 8 // a1
# BLOCK 1
FMLA v26.4s, v12.4s, v4.s[2]
LDR d16, [x5, 64]
FMLA v28.4s, v12.4s, v5.s[0]
INS v0.d[1], x8 // a1 ins
FMLA v30.4s, v12.4s, v5.s[2]
LDR x8, [x5, 72] // b
# BLOCK 2
FMLA v21.4s, v13.4s, v3.s[0]
LDR d1, [x10], 8 // a2
FMLA v23.4s, v13.4s, v3.s[2]
INS v16.d[1], x8 // b
FMLA v25.4s, v13.4s, v4.s[0]
LDR x8, [x11], 8 // a3
# BLOCK 3
FMLA v27.4s, v13.4s, v4.s[2]
LDR d2, [x12], 8 // a4
FMLA v29.4s, v13.4s, v5.s[0]
INS v1.d[1], x8 // a3 ins
FMLA v31.4s, v13.4s, v5.s[2]
LDR x8, [x4], 8 // a5
# BLOCK 4
FMLA v20.4s, v14.4s, v3.s[1]
LDR d17, [x5, 80]
FMLA v22.4s, v14.4s, v3.s[3]
INS v2.d[1], x8 // a5 ins
FMLA v24.4s, v14.4s, v4.s[1]
LDR x8, [x5, 88]
# BLOCK 5
FMLA v26.4s, v14.4s, v4.s[3]
LDR d18, [x5, 96]
FMLA v28.4s, v14.4s, v5.s[1]
INS v17.d[1], x8 // b
FMLA v30.4s, v14.4s, v5.s[3]
LDR x8, [x5, 104]
# BLOCK 6
FMLA v21.4s, v15.4s, v3.s[1]
LDR d19, [x5, 112]
FMLA v23.4s, v15.4s, v3.s[3]
INS v18.d[1], x8 // b
FMLA v25.4s, v15.4s, v4.s[1]
LDR x8, [x5, 120]
# BLOCK 7
FMLA v27.4s, v15.4s, v4.s[3]
SUBS x0, x0, 16
FMLA v29.4s, v15.4s, v5.s[1]
ADD x5, x5, 128
FMLA v31.4s, v15.4s, v5.s[3]
B.HS 1b
# Epilogue - 4 floats of A (16 bytes)
# 48 FMA + 12 LD64 A + 8 LDR B
2:
# First group of 24 FMA, Second group loads
# BLOCK 0
FMLA v20.4s, v16.4s, v0.s[0]
LDR d3, [x3], 8 // a0
FMLA v22.4s, v16.4s, v0.s[2]
INS v19.d[1], x8 // b from second group
FMLA v24.4s, v16.4s, v1.s[0]
LDR x8, [x9], 8 // a1
# BLOCK 1
FMLA v26.4s, v16.4s, v1.s[2]
LDR d12, [x5]
FMLA v28.4s, v16.4s, v2.s[0]
INS v3.d[1], x8 // a1 ins
FMLA v30.4s, v16.4s, v2.s[2]
LDR x8, [x5, 8] // b
# BLOCK 2
FMLA v21.4s, v17.4s, v0.s[0]
LDR d4, [x10], 8 // a2
FMLA v23.4s, v17.4s, v0.s[2]
INS v12.d[1], x8 // b ins
FMLA v25.4s, v17.4s, v1.s[0]
LDR x8, [x11], 8 // a3
# BLOCK 3
FMLA v27.4s, v17.4s, v1.s[2]
LDR d5, [x12], 8 // a4
FMLA v29.4s, v17.4s, v2.s[0]
INS v4.d[1], x8 // a3 ins
FMLA v31.4s, v17.4s, v2.s[2]
LDR x8, [x4], 8 // a5
# BLOCK 4
FMLA v20.4s, v18.4s, v0.s[1]
LDR d13, [x5, 16]
FMLA v22.4s, v18.4s, v0.s[3]
INS v5.d[1], x8 // a5 ins
FMLA v24.4s, v18.4s, v1.s[1]
LDR x8, [x5, 24]
# BLOCK 5
FMLA v26.4s, v18.4s, v1.s[3]
LDR d14, [x5, 32]
FMLA v28.4s, v18.4s, v2.s[1]
INS v13.d[1], x8 // b
FMLA v30.4s, v18.4s, v2.s[3]
LDR x8, [x5, 40]
# BLOCK 6
FMLA v21.4s, v19.4s, v0.s[1]
LDR d15, [x5, 48]
FMLA v23.4s, v19.4s, v0.s[3]
INS v14.d[1], x8 // b
FMLA v25.4s, v19.4s, v1.s[1]
LDR x8, [x5, 56]
# BLOCK 7
FMLA v27.4s, v19.4s, v1.s[3]
FMLA v29.4s, v19.4s, v2.s[1]
INS v15.d[1], x8 // b
FMLA v31.4s, v19.4s, v2.s[3]
# Second group of 24 FMA, First group of loads
# BLOCK 0
FMLA v20.4s, v12.4s, v3.s[0]
PRFM PSTL1KEEP, [x6] // Prefetch C0
FMLA v22.4s, v12.4s, v3.s[2]
PRFM PSTL1KEEP, [x16] // Prefetch C1
FMLA v24.4s, v12.4s, v4.s[0]
PRFM PSTL1KEEP, [x17] // Prefetch C2
# BLOCK 1
FMLA v26.4s, v12.4s, v4.s[2]
PRFM PSTL1KEEP, [x14] // Prefetch C3
FMLA v28.4s, v12.4s, v5.s[0]
PRFM PSTL1KEEP, [x13] // Prefetch C4
FMLA v30.4s, v12.4s, v5.s[2]
PRFM PSTL1KEEP, [x7] // Prefetch C5
# BLOCK 2
FMLA v21.4s, v13.4s, v3.s[0]
FMLA v23.4s, v13.4s, v3.s[2]
FMLA v25.4s, v13.4s, v4.s[0]
# BLOCK 3
FMLA v27.4s, v13.4s, v4.s[2]
FMLA v29.4s, v13.4s, v5.s[0]
FMLA v31.4s, v13.4s, v5.s[2]
# BLOCK 4
FMLA v20.4s, v14.4s, v3.s[1]
FMLA v22.4s, v14.4s, v3.s[3]
FMLA v24.4s, v14.4s, v4.s[1]
# BLOCK 5
FMLA v26.4s, v14.4s, v4.s[3]
FMLA v28.4s, v14.4s, v5.s[1]
FMLA v30.4s, v14.4s, v5.s[3]
TST x0, 15
# BLOCK 6
FMLA v21.4s, v15.4s, v3.s[1]
FMLA v23.4s, v15.4s, v3.s[3]
FMLA v25.4s, v15.4s, v4.s[1]
ADD x5, x5, 64
# BLOCK 7
FMLA v27.4s, v15.4s, v4.s[3]
FMLA v29.4s, v15.4s, v5.s[1]
FMLA v31.4s, v15.4s, v5.s[3]
# Is there a remainder?- 2 floats of A (8 bytes) or less
B.NE 4f
3:
# Clamp
FMAX v20.4s, v20.4s, v6.4s
# Load cn_stride
LDR x0, [sp, 32]
FMAX v21.4s, v21.4s, v6.4s
FMAX v22.4s, v22.4s, v6.4s
FMAX v23.4s, v23.4s, v6.4s
FMAX v24.4s, v24.4s, v6.4s
FMAX v25.4s, v25.4s, v6.4s
FMAX v26.4s, v26.4s, v6.4s
FMAX v27.4s, v27.4s, v6.4s
FMAX v28.4s, v28.4s, v6.4s
FMAX v29.4s, v29.4s, v6.4s
FMAX v30.4s, v30.4s, v6.4s
FMAX v31.4s, v31.4s, v6.4s
SUBS x1, x1, 8
FMIN v20.4s, v20.4s, v7.4s
FMIN v21.4s, v21.4s, v7.4s
FMIN v22.4s, v22.4s, v7.4s
FMIN v23.4s, v23.4s, v7.4s
FMIN v24.4s, v24.4s, v7.4s
FMIN v25.4s, v25.4s, v7.4s
FMIN v26.4s, v26.4s, v7.4s
FMIN v27.4s, v27.4s, v7.4s
FMIN v28.4s, v28.4s, v7.4s
FMIN v29.4s, v29.4s, v7.4s
FMIN v30.4s, v30.4s, v7.4s
FMIN v31.4s, v31.4s, v7.4s
# Store full 6 x 8
B.LO 6f
ST1 {v30.16b, v31.16b}, [x7], x0
SUB x3, x3, x2 // a0 -= kc
ST1 {v28.16b, v29.16b}, [x13], x0
SUB x9, x9, x2 // a1 -= kc
ST1 {v26.16b, v27.16b}, [x14], x0
SUB x10, x10, x2 // a2 -= kc
ST1 {v24.16b, v25.16b}, [x17], x0
SUB x11, x11, x2 // a3 -= kc
ST1 {v22.16b, v23.16b}, [x16], x0
SUB x12, x12, x2 // a4 -= kc
ST1 {v20.16b, v21.16b}, [x6], x0
SUB x4, x4, x2 // a5 -= kc
B.HI 0b
# Restore d12-d15 from stack
LDP d14, d15, [sp, 16]
LDP d12, d13, [sp], 32
RET
4:
# Is there a remainder?- 2 floats of A (8 bytes)
TBZ x0, 3, 5f
# Remainder- 2 floats of A (8 bytes)
LDR d0, [x3], 8
LDR q16, [x5], 16
LD1 {v0.d}[1], [x9], 8
LDR d1, [x10], 8
LD1 {v1.d}[1], [x11], 8
LDR d2, [x12], 8
LD1 {v2.d}[1], [x4], 8
LDR q17, [x5], 16
LDR q18, [x5], 16
LDR q19, [x5], 16
FMLA v20.4s, v16.4s, v0.s[0]
FMLA v22.4s, v16.4s, v0.s[2]
FMLA v24.4s, v16.4s, v1.s[0]
FMLA v26.4s, v16.4s, v1.s[2]
FMLA v28.4s, v16.4s, v2.s[0]
FMLA v30.4s, v16.4s, v2.s[2]
FMLA v21.4s, v17.4s, v0.s[0]
FMLA v23.4s, v17.4s, v0.s[2]
FMLA v25.4s, v17.4s, v1.s[0]
FMLA v27.4s, v17.4s, v1.s[2]
FMLA v29.4s, v17.4s, v2.s[0]
FMLA v31.4s, v17.4s, v2.s[2]
FMLA v20.4s, v18.4s, v0.s[1]
FMLA v22.4s, v18.4s, v0.s[3]
FMLA v24.4s, v18.4s, v1.s[1]
FMLA v26.4s, v18.4s, v1.s[3]
FMLA v28.4s, v18.4s, v2.s[1]
FMLA v30.4s, v18.4s, v2.s[3]
FMLA v21.4s, v19.4s, v0.s[1]
FMLA v23.4s, v19.4s, v0.s[3]
FMLA v25.4s, v19.4s, v1.s[1]
FMLA v27.4s, v19.4s, v1.s[3]
FMLA v29.4s, v19.4s, v2.s[1]
FMLA v31.4s, v19.4s, v2.s[3]
# Is there a remainder?- 1 float of A (4 bytes)
TBZ x0, 2, 3b
5:
# Remainder- 1 float of A (4 bytes)
LDR s0, [x3], 4
LDR q16, [x5], 16
LD1 {v0.s}[2], [x9], 4
LDR s1, [x10], 4
LD1 {v1.s}[2], [x11], 4
LDR s2, [x12], 4
LD1 {v2.s}[2], [x4], 4
LDR q17, [x5], 16
FMLA v20.4s, v16.4s, v0.s[0]
FMLA v22.4s, v16.4s, v0.s[2]
FMLA v24.4s, v16.4s, v1.s[0]
FMLA v26.4s, v16.4s, v1.s[2]
FMLA v28.4s, v16.4s, v2.s[0]
FMLA v30.4s, v16.4s, v2.s[2]
FMLA v21.4s, v17.4s, v0.s[0]
FMLA v23.4s, v17.4s, v0.s[2]
FMLA v25.4s, v17.4s, v1.s[0]
FMLA v27.4s, v17.4s, v1.s[2]
FMLA v29.4s, v17.4s, v2.s[0]
FMLA v31.4s, v17.4s, v2.s[2]
B 3b
# Store odd width
6:
TBZ x1, 2, 7f
STR q30, [x7], 16
MOV v30.16b, v31.16b
STR q28, [x13], 16
MOV v28.16b, v29.16b
STR q26, [x14], 16
MOV v26.16b, v27.16b
STR q24, [x17], 16
MOV v24.16b, v25.16b
STR q22, [x16], 16
MOV v22.16b, v23.16b
STR q20, [x6], 16
MOV v20.16b, v21.16b
7:
TBZ x1, 1, 8f
STR d30, [x7], 8
STR d28, [x13], 8
DUP d30, v30.d[1]
DUP d28, v28.d[1]
STR d26, [x14], 8
STR d24, [x17], 8
DUP d26, v26.d[1]
DUP d24, v24.d[1]
STR d22, [x16], 8
STR d20, [x6], 8
DUP d22, v22.d[1]
DUP d20, v20.d[1]
8:
TBZ x1, 0, 9f
STR s30, [x7]
STR s28, [x13]
STR s26, [x14]
STR s24, [x17]
STR s22, [x16]
STR s20, [x6]
9:
# Restore d12-d15 from stack
LDP d14, d15, [sp, 16]
LDP d12, d13, [sp], 32
RET
END_FUNCTION xnn_f32_gemminc_minmax_ukernel_6x8__aarch64_neonfma_cortex_a55
#ifdef __ELF__
.section ".note.GNU-stack","",%progbits
#endif