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// Auto-generated file. Do not edit!
// Template: src/f32-gemm/6x8-aarch64-neonfma-cortex-a53.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_ukernel_6x8__aarch64_neonfma_cortex_a53(
# 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] -> x14
# const float*restrict acc, [sp + 8] -> x15
# const union xnn_f32_output_params params[restrict static 1]) [sp + 16] -> x8
# d8-d15 need to be preserved if used.
# x19-30 need to be preserved if used.
# A pointers
# x3 a0
# x9 a1
# x10 a2
# x11 a3
# x12 a4
# x4 a5
# C pointers
# x6 c0
# x16 c1
# x17 c2
# x18 c3
# x13 c4
# x7 c5
# x19, x20 temporary vector shadow registers
# Vector register usage
# A0 v0 v3
# A1 v0[1] v3[1]
# A2 v1 v4
# A3 v1[1] v4[1]
# A4 v2 v5
# A5 v2[1] v5[1]
# B v12 v13 v14 v15 second set of B
# B v16 v17 v18 v19 first set
# C v20 v21
# C v22 v23
# C v24 v25
# C v26 v27
# C v28 v29
# C v30 v31
# Clamp v6 v7
# unused A v8 v9 v10 v11
BEGIN_FUNCTION xnn_f32_gemminc_ukernel_6x8__aarch64_neonfma_cortex_a53
# Clamp A and C pointers
ADD x9, x3, x4 // a1 = a0 + a_stride
ADD x16, x6, x7 // c1 = c0 + cm_stride
CMP x0, 2 // if mr < 2
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
ADD x11, x10, x4 // a3 = a2 + a_stride
ADD x18, x17, x7 // c3 = c2 + cm_stride
CMP x0, 4 // if mr < 4
CSEL x11, x10, x11, LO // a3 = a2
CSEL x18, x17, x18, LO // c3 = c2
ADD x12, x11, x4 // a4 = a3 + a_stride
ADD x13, x18, x7 // c4 = c3 + cm_stride
// if mr <= 5
CSEL x12, x11, x12, LS // a4 = a3
CSEL x13, x18, x13, LS // c4 = c3
# Load acc, params pointer
LDP x15, x8, [sp, 8]
ADD x4, x12, x4 // a5 = a4 + a_stride
ADD x7, x13, x7 // c5 = c4 + cm_stride
CMP x0, 6 // if mr < 6
CSEL x4, x12, x4, LO // a5 = a4
CSEL x7, x13, x7, LO // c5 = c4
# Load clamping_params values
LD2R {v6.4s, v7.4s}, [x8]
# Load cn_stride
LDR x14, [sp]
// Save x19, x20, d12-d15 on stack
STP d12, d13, [sp, -48]!
STP d14, d15, [sp, 16]
STP x19, x20, [sp, 32]
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
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?
SUBS x0, x2, 16 // k = kc - 16
B.LO 3f
# Prologue - First group loads, no FMA
LDR d0, [x3], 8 // a0
LDR x20, [x9], 8 // a1
LDR d1, [x10], 8 // a2
INS v0.d[1], x20 // a1 ins
LDR x19, [x11], 8 // a3
LDR d2, [x12], 8 // a4
INS v1.d[1], x19 // a3 ins
LDR x20, [x4], 8 // a5
LDR q16, [x5], 16 // b
INS v2.d[1], x20 // a5 ins
LDR q17, [x5], 16
SUBS x0, x0, 16
LDR q18, [x5], 16
LDR d19, [x5], 8
LDR x19, [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
LDR d3, [x3], 8 // a0
INS v19.d[1], x19 // b from second group
FMLA v20.4s, v16.4s, v0.s[0]
FMLA v22.4s, v16.4s, v0.s[2]
LDR x19, [x9], 8 // a1
FMLA v24.4s, v16.4s, v1.s[0]
// BLOCK 1
LDR d12, [x5]
FMLA v26.4s, v16.4s, v1.s[2]
FMLA v28.4s, v16.4s, v2.s[0]
LDR x20, [x5, 8] // b
FMLA v30.4s, v16.4s, v2.s[2]
// BLOCK 2
LDR d4, [x10], 8 // a2
INS v3.d[1], x19 // a1 ins
FMLA v21.4s, v17.4s, v0.s[0]
FMLA v23.4s, v17.4s, v0.s[2]
LDR x19, [x11], 8 // a3
FMLA v25.4s, v17.4s, v1.s[0]
// BLOCK 3
LDR d5, [x12], 8 // a4
INS v12.d[1], x20 // b ins
FMLA v27.4s, v17.4s, v1.s[2]
FMLA v29.4s, v17.4s, v2.s[0]
LDR x20, [x4], 8 // a5
FMLA v31.4s, v17.4s, v2.s[2]
// BLOCK 4
LDR d13, [x5, 16]
INS v4.d[1], x19 // a3 ins
FMLA v20.4s, v18.4s, v0.s[1]
FMLA v22.4s, v18.4s, v0.s[3]
LDR x19, [x5, 24]
FMLA v24.4s, v18.4s, v1.s[1]
// BLOCK 5
LDR d14, [x5, 32]
INS v5.d[1], x20 // a5 ins
FMLA v26.4s, v18.4s, v1.s[3]
FMLA v28.4s, v18.4s, v2.s[1]
LDR x20, [x5, 40]
FMLA v30.4s, v18.4s, v2.s[3]
// BLOCK 6
LDR d15, [x5, 48]
INS v13.d[1], x19 // b
FMLA v21.4s, v19.4s, v0.s[1]
FMLA v23.4s, v19.4s, v0.s[3]
LDR x19, [x5, 56]
FMLA v25.4s, v19.4s, v1.s[1]
// BLOCK 7
INS v14.d[1], x20 // b // LDR lands here
FMLA v27.4s, v19.4s, v1.s[3]
FMLA v29.4s, v19.4s, v2.s[1]
FMLA v31.4s, v19.4s, v2.s[3]
# Second group of 24 FMA, First group of loads
// BLOCK 0
LDR d0, [x3], 8 // a0
INS v15.d[1], x19 // b from previous
FMLA v20.4s, v12.4s, v3.s[0]
FMLA v22.4s, v12.4s, v3.s[2]
LDR x19, [x9], 8 // a1
FMLA v24.4s, v12.4s, v4.s[0]
PRFM PLDL1KEEP, [x3, 128] // Prefetch A0
// BLOCK 1
LDR d16, [x5, 64]
NOP
FMLA v26.4s, v12.4s, v4.s[2]
FMLA v28.4s, v12.4s, v5.s[0]
LDR x20, [x5, 72] // b
FMLA v30.4s, v12.4s, v5.s[2]
PRFM PLDL1KEEP, [x9, 128] // Prefetch A1
// BLOCK 2
LDR d1, [x10], 8 // a2
INS v0.d[1], x19 // a1 ins
FMLA v21.4s, v13.4s, v3.s[0]
FMLA v23.4s, v13.4s, v3.s[2]
LDR x19, [x11], 8 // a3
FMLA v25.4s, v13.4s, v4.s[0]
PRFM PLDL1KEEP, [x10, 128] // Prefetch A2
// BLOCK 3
LDR d2, [x12], 8 // a4
INS v16.d[1], x20 // b
FMLA v27.4s, v13.4s, v4.s[2]
FMLA v29.4s, v13.4s, v5.s[0]
LDR x20, [x4], 8 // a5
FMLA v31.4s, v13.4s, v5.s[2]
PRFM PLDL1KEEP, [x11, 128] // Prefetch A3
// BLOCK 4
LDR d17, [x5, 80]
INS v1.d[1], x19 // a3 ins
FMLA v20.4s, v14.4s, v3.s[1]
FMLA v22.4s, v14.4s, v3.s[3]
LDR x19, [x5, 88]
FMLA v24.4s, v14.4s, v4.s[1]
PRFM PLDL1KEEP, [x12, 128] // Prefetch A4
// BLOCK 5
LDR d18, [x5, 96]
INS v2.d[1], x20 // a5 ins
FMLA v26.4s, v14.4s, v4.s[3]
FMLA v28.4s, v14.4s, v5.s[1]
LDR x20, [x5, 104]
FMLA v30.4s, v14.4s, v5.s[3]
PRFM PLDL1KEEP, [x4, 128] // Prefetch A5
// BLOCK 6
LDR d19, [x5, 112]
INS v17.d[1], x19 // b
FMLA v21.4s, v15.4s, v3.s[1]
PRFM PLDL1KEEP, [x5, 384] // Prefetch B
FMLA v23.4s, v15.4s, v3.s[3]
LDR x19, [x5, 120]
FMLA v25.4s, v15.4s, v4.s[1]
PRFM PLDL1KEEP, [x5, 448] // Prefetch B
// BLOCK 7
SUBS x0, x0, 16 // LDR lands here
INS v18.d[1], x20 // b
FMLA v27.4s, v15.4s, v4.s[3]
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
LDR d3, [x3], 8 // a0
INS v19.d[1], x19 // b from second group
FMLA v20.4s, v16.4s, v0.s[0]
FMLA v22.4s, v16.4s, v0.s[2]
LDR x19, [x9], 8 // a1
FMLA v24.4s, v16.4s, v1.s[0]
// BLOCK 1
LDR d12, [x5]
FMLA v26.4s, v16.4s, v1.s[2]
FMLA v28.4s, v16.4s, v2.s[0]
LDR x20, [x5, 8] // b
FMLA v30.4s, v16.4s, v2.s[2]
// BLOCK 2
LDR d4, [x10], 8 // a2
INS v3.d[1], x19 // a1 ins
FMLA v21.4s, v17.4s, v0.s[0]
FMLA v23.4s, v17.4s, v0.s[2]
LDR x19, [x11], 8 // a3
FMLA v25.4s, v17.4s, v1.s[0]
// BLOCK 3
LDR d5, [x12], 8 // a4
INS v12.d[1], x20 // b ins
FMLA v27.4s, v17.4s, v1.s[2]
FMLA v29.4s, v17.4s, v2.s[0]
LDR x20, [x4], 8 // a5
FMLA v31.4s, v17.4s, v2.s[2]
// BLOCK 4
LDR d13, [x5, 16]
INS v4.d[1], x19 // a3 ins
FMLA v20.4s, v18.4s, v0.s[1]
FMLA v22.4s, v18.4s, v0.s[3]
LDR x19, [x5, 24]
FMLA v24.4s, v18.4s, v1.s[1]
// BLOCK 5
LDR d14, [x5, 32]
INS v5.d[1], x20 // a5 ins
FMLA v26.4s, v18.4s, v1.s[3]
FMLA v28.4s, v18.4s, v2.s[1]
LDR x20, [x5, 40]
FMLA v30.4s, v18.4s, v2.s[3]
// BLOCK 6
LDR d15, [x5, 48]
INS v13.d[1], x19 // b
FMLA v21.4s, v19.4s, v0.s[1]
FMLA v23.4s, v19.4s, v0.s[3]
LDR x19, [x5, 56]
FMLA v25.4s, v19.4s, v1.s[1]
// BLOCK 7
INS v14.d[1], x20 // b // LDR lands here
FMLA v27.4s, v19.4s, v1.s[3]
FMLA v29.4s, v19.4s, v2.s[1]
FMLA v31.4s, v19.4s, v2.s[3]
# Second group of 24 FMA, First group of loads
// BLOCK 0
INS v15.d[1], x19 // b from previous
FMLA v20.4s, v12.4s, v3.s[0]
FMLA v22.4s, v12.4s, v3.s[2]
FMLA v24.4s, v12.4s, v4.s[0]
// BLOCK 1
FMLA v26.4s, v12.4s, v4.s[2]
FMLA v28.4s, v12.4s, v5.s[0]
FMLA v30.4s, v12.4s, v5.s[2]
// 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]
// 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]
// 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]
ADD x5, x5, 64
3:
# Is there a remainder?- 2 floats of A (8 bytes)
TBNZ x0, 3, 6f
# Is there a remainder?- 1 floats of A (4 bytes)
TBNZ x0, 2, 7f
4:
# Clamp
FMIN v20.4s, v20.4s, v6.4s
FMIN v21.4s, v21.4s, v6.4s
FMIN v22.4s, v22.4s, v6.4s
FMIN v23.4s, v23.4s, v6.4s
FMIN v24.4s, v24.4s, v6.4s
FMIN v25.4s, v25.4s, v6.4s
FMIN v26.4s, v26.4s, v6.4s
FMIN v27.4s, v27.4s, v6.4s
FMIN v28.4s, v28.4s, v6.4s
FMIN v29.4s, v29.4s, v6.4s
FMIN v30.4s, v30.4s, v6.4s
FMIN v31.4s, v31.4s, v6.4s
FMAX v20.4s, v20.4s, v7.4s
FMAX v21.4s, v21.4s, v7.4s
FMAX v22.4s, v22.4s, v7.4s
FMAX v23.4s, v23.4s, v7.4s
FMAX v24.4s, v24.4s, v7.4s
FMAX v25.4s, v25.4s, v7.4s
FMAX v26.4s, v26.4s, v7.4s
FMAX v27.4s, v27.4s, v7.4s
FMAX v28.4s, v28.4s, v7.4s
FMAX v29.4s, v29.4s, v7.4s
FMAX v30.4s, v30.4s, v7.4s
FMAX v31.4s, v31.4s, v7.4s
# Store full 6 x 8
CMP x1, 8
B.LO 8f
ST1 {v30.16b, v31.16b}, [x7], x14
SUB x3, x3, x2 // a0 -= kc
ST1 {v28.16b, v29.16b}, [x13], x14
SUB x9, x9, x2 // a1 -= kc
ST1 {v26.16b, v27.16b}, [x18], x14
SUB x10, x10, x2 // a2 -= kc
ST1 {v24.16b, v25.16b}, [x17], x14
SUB x11, x11, x2 // a3 -= kc
ST1 {v22.16b, v23.16b}, [x16], x14
SUB x12, x12, x2 // a4 -= kc
ST1 {v20.16b, v21.16b}, [x6], x14
SUB x4, x4, x2 // a5 -= kc
SUBS x1, x1, 8
B.HI 0b
// Restore x19, x20, d12-d15 from stack
LDP x19, x20, [sp, 32]
LDP d14, d15, [sp, 16]
LDP d12, d13, [sp], 48
RET
# Remainder- 2 floats of A (8 bytes)
6:
LDR d0, [x3], 8
LDR q16, [x5], 16
LDR q17, [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
FMLA v20.4s, v16.4s, v0.s[0]
LDR q18, [x5], 16
LDR q19, [x5], 16
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 floats of A (4 bytes)
TBZ x0, 2, 4b
7:
# Remainder- 1 floats of A (4 bytes)
LDR s0, [x3], 4
LDR q16, [x5], 16
LDR q17, [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
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 4b
# Store odd width
8:
TBZ x1, 2, 9f
STR q30, [x7], 16
MOV v30.16b, v31.16b
STR q28, [x13], 16
MOV v28.16b, v29.16b
STR q26, [x18], 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
9:
TBZ x1, 1, 10f
STR d30, [x7], 8
DUP d30, v30.d[1]
STR d28, [x13], 8
DUP d28, v28.d[1]
STR d26, [x18], 8
DUP d26, v26.d[1]
STR d24, [x17], 8
DUP d24, v24.d[1]
STR d22, [x16], 8
DUP d22, v22.d[1]
STR d20, [x6], 8
DUP d20, v20.d[1]
10:
TBZ x1, 0, 11f
STR s30, [x7]
STR s28, [x13]
STR s26, [x18]
STR s24, [x17]
STR s22, [x16]
STR s20, [x6]
11:
// Restore x19, x20, d12-d15 from stack
LDP x19, x20, [sp, 32]
LDP d14, d15, [sp, 16]
LDP d12, d13, [sp], 48
RET
END_FUNCTION xnn_f32_gemminc_ukernel_6x8__aarch64_neonfma_cortex_a53
#ifdef __ELF__
.section ".note.GNU-stack","",%progbits
#endif