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// Auto-generated file. Do not edit!
// Template: src/f32-gemm/1x8-aarch64-neonfma-ld128.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_gemm_minmax_ukernel_1x8__asm_aarch64_neonfma_ld128(
# size_t mr, (x0) - unused. mr = 1
# size_t nc, x1
# size_t kc, x2 / x0
# const float* a, x3
# size_t a_stride, (x4) - unused
# const void* w, x5
# float* c, x6
# size_t cm_stride, (x7) - unused
# size_t cn_stride, [sp] -> x14
# const xnn_f32_minmax_params* params) [sp + 8] -> (x8)
# d8-d15, x19-x30 need to be preserved if used. x18 is reserved by the OS.
# Register usage
# A0 x3 v0
# B x5 v20 v24 v21 v25 v22 v26 v23 v27
# C0 x6 v16 v17
# Clamp v4 v5
BEGIN_FUNCTION xnn_f32_gemm_minmax_ukernel_1x8__asm_aarch64_neonfma_ld128
# Load cn_stride, params pointer
LDP x14, x8, [sp]
# Load min/max values
LD2R {v4.4s, v5.4s}, [x8]
0:
# Load initial bias from w into accumulators
LDP q16, q17, [x5], 32
# Is there at least 4 floats (16 bytes)
SUBS x0, x2, 16 // k = kc - 16
B.LO 3f
# Main loop - 4 floats of A (16 bytes)
1:
LDR q0, [x3], 16
LDP q20, q24, [x5], 32
LDP q21, q25, [x5], 32
FMLA v16.4s, v20.4s, v0.s[0]
FMLA v17.4s, v24.4s, v0.s[0]
FMLA v16.4s, v21.4s, v0.s[1]
FMLA v17.4s, v25.4s, v0.s[1]
LDP q22, q26, [x5], 32
LDP q23, q27, [x5], 32
SUBS x0, x0, 16
FMLA v16.4s, v22.4s, v0.s[2]
FMLA v17.4s, v26.4s, v0.s[2]
FMLA v16.4s, v23.4s, v0.s[3]
FMLA v17.4s, v27.4s, v0.s[3]
B.HS 1b
# Is there a remainder?- 2 float of A (8 bytes)
TBNZ x0, 3, 4f
# Is there a remainder?- 1 float of A (4 bytes)
TBNZ x0, 2, 5f
2:
SUBS x1, x1, 8
# Clamp
FMAX v16.4s, v16.4s, v4.4s
FMAX v17.4s, v17.4s, v4.4s
FMIN v16.4s, v16.4s, v5.4s
FMIN v17.4s, v17.4s, v5.4s
# Store full 1 x 8
B.LO 6f
STP q16, q17, [x6]
ADD x6, x6, x14
SUB x3, x3, x2 // a0 -= kc
B.HI 0b
RET
3:
TBZ x0, 3, 5f
# Remainder- 2 float of A (4 bytes)
4:
# Remainder- 2 floats of A (8 bytes)
LDP q20, q24, [x5], 32
LDP q21, q25, [x5], 32
LDR d0, [x3], 8
FMLA v16.4s, v20.4s, v0.s[0]
FMLA v17.4s, v24.4s, v0.s[0]
FMLA v16.4s, v21.4s, v0.s[1]
FMLA v17.4s, v25.4s, v0.s[1]
TBZ x0, 2, 2b
# Remainder- 1 float of A (4 bytes)
5:
# Remainder- 2 floats of A (8 bytes)
LDP q20, q24, [x5], 32
LDR s0, [x3], 4
FMLA v16.4s, v20.4s, v0.s[0]
FMLA v17.4s, v24.4s, v0.s[0]
B 2b
# Store odd channels
6:
TBZ x1, 2, 7f
STR q16, [x6], 16
MOV v16.16b, v17.16b
7:
TBZ x1, 1, 8f
STR d16, [x6], 8
DUP d16, v16.d[1]
8:
TBZ x1, 0, 9f
STR s16, [x6]
9:
RET
END_FUNCTION xnn_f32_gemm_minmax_ukernel_1x8__asm_aarch64_neonfma_ld128
#ifdef __ELF__
.section ".note.GNU-stack","",%progbits
#endif
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