WAsm SIMD variants of F32 MAXPOOL microkernels

PiperOrigin-RevId: 320332301

1 files changed, 258 insertions, 0 deletions

diff --git a/src/f32-maxpool/9p8x-minmax-wasmsimd-arm-c4.c b/src/f32-maxpool/9p8x-minmax-wasmsimd-arm-c4.c
new file mode 100644
index 000000000..fef55b4a7
--- /dev/null
+++ b/src/f32-maxpool/9p8x-minmax-wasmsimd-arm-c4.c
@@ -0,0 +1,258 @@
+// Copyright 2020 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 <assert.h>
+
+#include <wasm_simd128.h>
+
+#include <xnnpack/maxpool.h>
+
+
+void xnn_f32_maxpool_minmax_ukernel_9p8x__wasmsimd_arm_c4(
+    size_t output_pixels,
+    size_t kernel_elements,
+    size_t channels,
+    const float** input,
+    size_t input_offset,
+    float* output,
+    size_t input_increment,
+    size_t output_increment,
+    const union xnn_f32_minmax_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_DISABLE_TSAN
+{
+  assert(output_pixels != 0);
+  assert(kernel_elements != 0);
+  assert(channels != 0);
+
+  const v128_t voutput_max = wasm_v32x4_load_splat(&params->scalar.max);
+  const v128_t voutput_min = wasm_v32x4_load_splat(&params->scalar.min);
+  do {
+    float* o = output;
+    {
+      const float* i0 = *input++;
+      const float* i1 = *input++;
+      const float* i2 = *input++;
+      const float* i3 = *input++;
+      const float* i4 = *input++;
+      const float* i5 = *input++;
+      const float* i6 = *input++;
+      const float* i7 = *input++;
+      const float* i8 = *input++;
+      i0 = (const float*) ((uintptr_t) i0 + input_offset);
+      i1 = (const float*) ((uintptr_t) i1 + input_offset);
+      i2 = (const float*) ((uintptr_t) i2 + input_offset);
+      i3 = (const float*) ((uintptr_t) i3 + input_offset);
+      i4 = (const float*) ((uintptr_t) i4 + input_offset);
+      i5 = (const float*) ((uintptr_t) i5 + input_offset);
+      i6 = (const float*) ((uintptr_t) i6 + input_offset);
+      i7 = (const float*) ((uintptr_t) i7 + input_offset);
+      i8 = (const float*) ((uintptr_t) i8 + input_offset);
+      if (kernel_elements < 2) {
+        i1 = i0;
+      }
+      if (kernel_elements <= 2) {
+        i2 = i0;
+      }
+      if (kernel_elements < 4) {
+        i3 = i0;
+      }
+      if (kernel_elements <= 4) {
+        i4 = i0;
+      }
+      if (kernel_elements < 6) {
+        i5 = i0;
+      }
+      if (kernel_elements <= 6) {
+        i6 = i0;
+      }
+      if (kernel_elements < 8) {
+        i7 = i0;
+      }
+      if (kernel_elements <= 8) {
+        i8 = i0;
+      }
+
+      size_t c = channels;
+      for (; c >= 4; c -= 4) {
+        const v128_t vi0 = wasm_v128_load(i0);
+        i0 += 4;
+        const v128_t vi1 = wasm_v128_load(i1);
+        i1 += 4;
+        const v128_t vi2 = wasm_v128_load(i2);
+        i2 += 4;
+        const v128_t vi3 = wasm_v128_load(i3);
+        i3 += 4;
+        const v128_t vi4 = wasm_v128_load(i4);
+        i4 += 4;
+        const v128_t vi5 = wasm_v128_load(i5);
+        i5 += 4;
+        const v128_t vi6 = wasm_v128_load(i6);
+        i6 += 4;
+        const v128_t vi7 = wasm_v128_load(i7);
+        i7 += 4;
+        const v128_t vi8 = wasm_v128_load(i8);
+        i8 += 4;
+
+        const v128_t vmax018 = wasm_f32x4_max(wasm_f32x4_max(vi0, vi1), vi8);
+        const v128_t vmax23 = wasm_f32x4_max(vi2, vi3);
+        const v128_t vmax45 = wasm_f32x4_max(vi4, vi5);
+        const v128_t vmax67 = wasm_f32x4_max(vi6, vi7);
+
+        const v128_t vmax2345 = wasm_f32x4_max(vmax23, vmax45);
+        const v128_t vmax01678 = wasm_f32x4_max(vmax018, vmax67);
+        const v128_t vmax = wasm_f32x4_max(vmax2345, vmax01678);
+        const v128_t vout = wasm_f32x4_max(wasm_f32x4_min(vmax, voutput_max), voutput_min);
+
+        wasm_v128_store(o, vout);
+        o += 4;
+      }
+      if (c != 0) {
+        const v128_t vi0 = wasm_v128_load(i0);
+        i0 += 4;
+        const v128_t vi1 = wasm_v128_load(i1);
+        i1 += 4;
+        const v128_t vi2 = wasm_v128_load(i2);
+        i2 += 4;
+        const v128_t vi3 = wasm_v128_load(i3);
+        i3 += 4;
+        const v128_t vi4 = wasm_v128_load(i4);
+        i4 += 4;
+        const v128_t vi5 = wasm_v128_load(i5);
+        i5 += 4;
+        const v128_t vi6 = wasm_v128_load(i6);
+        i6 += 4;
+        const v128_t vi7 = wasm_v128_load(i7);
+        i7 += 4;
+        const v128_t vi8 = wasm_v128_load(i8);
+        i8 += 4;
+
+        const v128_t vmax018 = wasm_f32x4_max(wasm_f32x4_max(vi0, vi1), vi8);
+        const v128_t vmax23 = wasm_f32x4_max(vi2, vi3);
+        const v128_t vmax45 = wasm_f32x4_max(vi4, vi5);
+        const v128_t vmax67 = wasm_f32x4_max(vi6, vi7);
+
+        const v128_t vmax2345 = wasm_f32x4_max(vmax23, vmax45);
+        const v128_t vmax01678 = wasm_f32x4_max(vmax018, vmax67);
+        const v128_t vmax = wasm_f32x4_max(vmax2345, vmax01678);
+        v128_t vout = wasm_f32x4_max(wasm_f32x4_min(vmax, voutput_max), voutput_min);
+
+        if (c & 2) {
+          *((double*) o) = wasm_f64x2_extract_lane(vout, 0);
+          vout = wasm_v32x4_shuffle(vout, vout, 2, 3, 2, 3);
+          o += 2;
+        }
+        if (c & 1) {
+          *o++ = wasm_f32x4_extract_lane(vout, 0);
+        }
+      }
+    }
+
+    for (ptrdiff_t k = (ptrdiff_t) kernel_elements - 9; k > 0; k -= 8) {
+      const float* i0 = *input++;
+      const float* i1 = *input++;
+      const float* i2 = *input++;
+      const float* i3 = *input++;
+      const float* i4 = *input++;
+      const float* i5 = *input++;
+      const float* i6 = *input++;
+      const float* i7 = *input++;
+      i0 = (const float*) ((uintptr_t) i0 + input_offset);
+      i1 = (const float*) ((uintptr_t) i1 + input_offset);
+      i2 = (const float*) ((uintptr_t) i2 + input_offset);
+      i3 = (const float*) ((uintptr_t) i3 + input_offset);
+      i4 = (const float*) ((uintptr_t) i4 + input_offset);
+      i5 = (const float*) ((uintptr_t) i5 + input_offset);
+      i6 = (const float*) ((uintptr_t) i6 + input_offset);
+      i7 = (const float*) ((uintptr_t) i7 + input_offset);
+      if (k < 2) {
+        i1 = i0;
+      }
+      if (k <= 2) {
+        i2 = i0;
+      }
+      if (k < 4) {
+        i3 = i0;
+      }
+      if (k <= 4) {
+        i4 = i0;
+      }
+      if (k < 6) {
+        i5 = i0;
+      }
+      if (k <= 6) {
+        i6 = i0;
+      }
+      if (k < 8) {
+        i7 = i0;
+      }
+
+      o = output;
+      size_t c = channels;
+      for (; c >= 4; c -= 4) {
+        const v128_t vi0 = wasm_v128_load(i0);
+        i0 += 4;
+        const v128_t vi1 = wasm_v128_load(i1);
+        i1 += 4;
+        const v128_t vi2 = wasm_v128_load(i2);
+        i2 += 4;
+        const v128_t vi3 = wasm_v128_load(i3);
+        i3 += 4;
+        const v128_t vi4 = wasm_v128_load(i4);
+        i4 += 4;
+        const v128_t vi5 = wasm_v128_load(i5);
+        i5 += 4;
+        const v128_t vi6 = wasm_v128_load(i6);
+        i6 += 4;
+        const v128_t vi7 = wasm_v128_load(i7);
+        i7 += 4;
+        const v128_t vo = wasm_v128_load(o);
+
+        const v128_t vmax01 = wasm_f32x4_max(wasm_f32x4_max(vi0, vi1), vo);
+        const v128_t vmax23 = wasm_f32x4_max(vi2, vi3);
+        const v128_t vmax45 = wasm_f32x4_max(vi4, vi5);
+        const v128_t vmax67 = wasm_f32x4_max(vi6, vi7);
+
+        const v128_t vmax2345 = wasm_f32x4_max(vmax23, vmax45);
+        const v128_t vmax0167 = wasm_f32x4_max(vmax01, vmax67);
+        const v128_t vmax = wasm_f32x4_max(vmax2345, vmax0167);
+        const v128_t vout = wasm_f32x4_max(wasm_f32x4_min(vmax, voutput_max), voutput_min);
+
+        wasm_v128_store(o, vout);
+        o += 4;
+      }
+      if (c != 0) {
+        const v128_t vi0 = wasm_v128_load(i0);
+        const v128_t vi1 = wasm_v128_load(i1);
+        const v128_t vi2 = wasm_v128_load(i2);
+        const v128_t vi3 = wasm_v128_load(i3);
+        const v128_t vi4 = wasm_v128_load(i4);
+        const v128_t vi5 = wasm_v128_load(i5);
+        const v128_t vi6 = wasm_v128_load(i6);
+        const v128_t vi7 = wasm_v128_load(i7);
+        const v128_t vo = wasm_v128_load(o);
+
+        const v128_t vmax01 = wasm_f32x4_max(wasm_f32x4_max(vi0, vi1), vo);
+        const v128_t vmax23 = wasm_f32x4_max(vi2, vi3);
+        const v128_t vmax45 = wasm_f32x4_max(vi4, vi5);
+        const v128_t vmax67 = wasm_f32x4_max(vi6, vi7);
+
+        const v128_t vmax2345 = wasm_f32x4_max(vmax23, vmax45);
+        const v128_t vmax0167 = wasm_f32x4_max(vmax01, vmax67);
+        const v128_t vmax = wasm_f32x4_max(vmax2345, vmax0167);
+        v128_t vout = wasm_f32x4_max(wasm_f32x4_min(vmax, voutput_max), voutput_min);
+
+        if (c & 2) {
+          *((double*) o) = wasm_f64x2_extract_lane(vout, 0);
+          vout = wasm_v32x4_shuffle(vout, vout, 2, 3, 2, 3);
+          o += 2;
+        }
+        if (c & 1) {
+          *o++ = wasm_f32x4_extract_lane(vout, 0);
+        }
+      }
+    }
+    input = (const float**) ((uintptr_t) input + input_increment);
+    output = (float*) ((uintptr_t) o + output_increment);
+  } while (--output_pixels != 0);
+}