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// 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.
$assert DATATYPE in ["F32", "QC8"]
$assert NR == 2
#include <assert.h>
#include <arm_neon.h>
#include <xnnpack/common.h>
#include <xnnpack/gemm.h>
$DATATYPE_SPEC = {"F32": "f32", "QC8": "f32_qc8w"}[DATATYPE]
void xnn_${DATATYPE_SPEC}_gemm${"inc" if INC else ""}_minmax_ukernel_${MR}x${NR}__${"aarch64_neonfma" if FMA else "neon"}_lane_ld64(
size_t mr,
size_t nc,
size_t kc,
const float* restrict a,
size_t a_stride,
$if DATATYPE == "F32":
const float* restrict w,
$else:
const void* restrict w,
float* restrict c,
size_t cm_stride,
size_t cn_stride,
$if INC:
const float* restrict acc,
const union xnn_f32_minmax_params params[restrict XNN_MIN_ELEMENTS(1)])
{
assert(mr != 0);
assert(mr <= ${MR});
assert(nc != 0);
assert(kc != 0);
assert(kc % sizeof(float) == 0);
assert(a != NULL);
assert(w != NULL);
assert(c != NULL);
$if INC:
assert(acc != NULL);
const float* a0 = a;
float* c0 = c;
$for M in range(1, MR):
const float* a${M} = (const float*) ((uintptr_t) a${M-1} + a_stride);
float* c${M} = (float*) ((uintptr_t) c${M-1} + cm_stride);
$if M % 2 == 0:
if XNN_UNPREDICTABLE(mr <= ${M}) {
a${M} = a${M-1};
c${M} = c${M-1};
}
$elif M + 1 == MR:
if XNN_UNPREDICTABLE(mr != ${M+1}) {
a${M} = a${M-1};
c${M} = c${M-1};
}
$else:
if XNN_UNPREDICTABLE(mr < ${M+1}) {
a${M} = a${M-1};
c${M} = c${M-1};
}
do {
$if INC:
$for M in range(0, MR):
float32x2_t vacc${M}x01 = vld1_f32(w); w += 2;
$else:
$if DATATYPE == "F32":
float32x2_t vacc0x01 = vld1_f32(w); w += 2;
$else:
float32x2_t vacc0x01 = vreinterpret_f32_u8(vld1_u8(w)); w = (const float*) w + 2;
$for M in range(1, MR):
float32x2_t vacc${M}x01 = vacc0x01;
size_t k = kc;
for (; k >= 2 * sizeof(float); k -= 2 * sizeof(float)) {
$for M in range(MR):
const float32x2_t va${M} = vld1_f32(a${M}); a${M} += 2;
$if DATATYPE == "F32":
const float32x4_t vb01c01 = vld1q_f32(w); w += 4;
$elif DATATYPE == "QC8":
const uint32x2_t vtmpb = vld1_dup_u32(w); w = (const int8_t*) w + 4;
const int32x4_t vtmpi = vmovl_s16(vget_low_s16(vmovl_s8(vreinterpret_s8_u32(vtmpb))));
const float32x4_t vb01c01 = vcvtq_f32_s32(vtmpi);
const float32x2_t vb01c0 = vget_low_f32(vb01c01);
const float32x2_t vb01c1 = vget_high_f32(vb01c01);
$for L in range(2):
$if FMA:
#if XNN_ARCH_ARM64
$for M in range(MR):
vacc${M}x01 = vfma_lane_f32(vacc${M}x01, vb01c${L}, va${M}, ${L});
#else
$for M in range(MR):
const float32x2_t va${M}c${L} = vdup_lane_f32(va${M}, ${L});
$for M in range(MR):
vacc${M}x01 = vfma_f32(vacc${M}x01, va${M}c${L}, vb01c${L});
#endif
$else:
$for M in range(MR):
vacc${M}x01 = vmla_lane_f32(vacc${M}x01, vb01c${L}, va${M}, ${L});
}
if XNN_UNLIKELY(k != 0) {
$for M in range(MR):
const float32x2_t va${M} = vld1_dup_f32(a${M}); a${M} += 1;
$if DATATYPE == "F32":
const float32x2_t vb01 = vld1_f32(w); w += 2;
$elif DATATYPE == "QC8":
const uint16x4_t vtmpb = vld1_dup_u16(w); w = (const int8_t*) w + 2;
const int32x2_t vtmpi = vget_low_s32(vmovl_s16(vget_low_s16(vmovl_s8(vreinterpret_s8_u16(vtmpb)))));
const float32x2_t vb01 = vcvt_f32_s32(vtmpi);
$for M in range(MR):
$if FMA:
vacc${M}x01 = vfma_f32(vacc${M}x01, va${M}, vb01);
$else:
vacc${M}x01 = vmla_f32(vacc${M}x01, va${M}, vb01);
}
$if DATATYPE == "QC8":
const float32x2_t vscale = vreinterpret_f32_u8(vld1_u8(w)); w = (const float*) w + 2;
$for M in range(MR):
vacc${M}x01 = vmul_f32(vacc${M}x01, vscale);
const float32x2_t vmax = vld1_dup_f32(¶ms->scalar.max);
$for M in range(MR):
vacc${M}x01 = vmin_f32(vacc${M}x01, vmax);
const float32x2_t vmin = vld1_dup_f32(¶ms->scalar.min);
$for M in range(MR):
vacc${M}x01 = vmax_f32(vacc${M}x01, vmin);
if XNN_LIKELY(nc >= ${NR}) {
$for M in range(MR):
vst1_f32(c${M}, vacc${M}x01);
c${M} = (float*) ((uintptr_t) c${M} + cn_stride);
$for M in range(MR):
a${M} = (const float*) ((uintptr_t) a${M} - kc);
nc -= ${NR};
} else {
assert(nc == 1);
$for M in range(MR):
vst1_lane_f32(c${M}, vacc${M}x01, 0);
nc = 0;
}
} while (nc != 0);
}
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