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#include <assert.h> |
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#include <wasm_simd128.h> |
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#include <xnnpack/common.h> |
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#include <xnnpack/vcvt.h> |
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void xnn_f32_f16_vcvt_ukernel__wasmrelaxedsimd_x16( |
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size_t batch, |
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const float* input, |
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void* output, |
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const union xnn_f32_f16_cvt_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS |
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{ |
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assert(batch != 0); |
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assert(batch % sizeof(float) == 0); |
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assert(input != NULL); |
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assert(output != NULL); |
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const v128_t vexp_bias = wasm_v128_load64_splat(params->wasmsimd.exp_bias); |
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const v128_t vscale_to_inf = wasm_v128_load64_splat(params->wasmsimd.scale_to_inf); |
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const v128_t vexpw_max = wasm_v128_load64_splat(params->wasmsimd.expw_max); |
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const v128_t vscale_to_zero = wasm_v128_load64_splat(params->wasmsimd.scale_to_zero); |
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const v128_t vbias_min = wasm_v128_load64_splat(params->wasmsimd.bias_min); |
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const v128_t vmanth_mask = wasm_v128_load64_splat(params->wasmsimd.manth_mask); |
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const v128_t vexph_mask = wasm_v128_load64_splat(params->wasmsimd.exph_mask); |
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const v128_t vnanh = wasm_v128_load64_splat(params->wasmsimd.nanh); |
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uint16_t* o = (uint16_t*) output; |
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for (; batch >= 16 * sizeof(float); batch -= 16 * sizeof(float)) { |
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const v128_t vx0 = wasm_v128_load(input); |
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const v128_t vx1 = wasm_v128_load(input + 4); |
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const v128_t vx2 = wasm_v128_load(input + 8); |
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const v128_t vx3 = wasm_v128_load(input + 12); |
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input += 16; |
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const v128_t vabsx0 = wasm_f32x4_abs(vx0); |
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const v128_t vabsx1 = wasm_f32x4_abs(vx1); |
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const v128_t vabsx2 = wasm_f32x4_abs(vx2); |
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const v128_t vabsx3 = wasm_f32x4_abs(vx3); |
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const v128_t vsignx0 = wasm_v128_xor(vx0, vabsx0); |
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const v128_t vsignx1 = wasm_v128_xor(vx1, vabsx1); |
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const v128_t vsignx2 = wasm_v128_xor(vx2, vabsx2); |
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const v128_t vsignx3 = wasm_v128_xor(vx3, vabsx3); |
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v128_t vbias0 = wasm_i32x4_add(vabsx0, vexp_bias); |
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v128_t vbias1 = wasm_i32x4_add(vabsx1, vexp_bias); |
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v128_t vbias2 = wasm_i32x4_add(vabsx2, vexp_bias); |
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v128_t vbias3 = wasm_i32x4_add(vabsx3, vexp_bias); |
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v128_t vf0 = wasm_f32x4_mul(vabsx0, vscale_to_inf); |
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v128_t vf1 = wasm_f32x4_mul(vabsx1, vscale_to_inf); |
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v128_t vf2 = wasm_f32x4_mul(vabsx2, vscale_to_inf); |
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v128_t vf3 = wasm_f32x4_mul(vabsx3, vscale_to_inf); |
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const v128_t vnanmaskw0 = wasm_i32x4_gt(vabsx0, vexpw_max); |
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const v128_t vnanmaskw1 = wasm_i32x4_gt(vabsx1, vexpw_max); |
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const v128_t vnanmaskw2 = wasm_i32x4_gt(vabsx2, vexpw_max); |
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const v128_t vnanmaskw3 = wasm_i32x4_gt(vabsx3, vexpw_max); |
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vbias0 = wasm_v128_and(vbias0, vexpw_max); |
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vbias1 = wasm_v128_and(vbias1, vexpw_max); |
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vbias2 = wasm_v128_and(vbias2, vexpw_max); |
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vbias3 = wasm_v128_and(vbias3, vexpw_max); |
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vf0 = wasm_f32x4_mul(vf0, vscale_to_zero); |
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vf1 = wasm_f32x4_mul(vf1, vscale_to_zero); |
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vf2 = wasm_f32x4_mul(vf2, vscale_to_zero); |
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vf3 = wasm_f32x4_mul(vf3, vscale_to_zero); |
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const v128_t vnanmaskh0 = wasm_i16x8_narrow_i32x4(vnanmaskw0, vnanmaskw1); |
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const v128_t vnanmaskh1 = wasm_i16x8_narrow_i32x4(vnanmaskw2, vnanmaskw3); |
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const v128_t vsignh0 = wasm_i16x8_narrow_i32x4(vsignx0, vsignx1); |
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const v128_t vsignh1 = wasm_i16x8_narrow_i32x4(vsignx2, vsignx3); |
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vbias0 = wasm_i16x8_max(vbias0, vbias_min); |
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vbias1 = wasm_i16x8_max(vbias1, vbias_min); |
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vbias2 = wasm_i16x8_max(vbias2, vbias_min); |
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vbias3 = wasm_i16x8_max(vbias3, vbias_min); |
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vf0 = wasm_f32x4_add(vf0, vbias0); |
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vf1 = wasm_f32x4_add(vf1, vbias1); |
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vf2 = wasm_f32x4_add(vf2, vbias2); |
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vf3 = wasm_f32x4_add(vf3, vbias3); |
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v128_t vexpw0 = wasm_i32x4_shr(vf0, 13); |
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v128_t vexpw1 = wasm_i32x4_shr(vf1, 13); |
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v128_t vexpw2 = wasm_i32x4_shr(vf2, 13); |
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v128_t vexpw3 = wasm_i32x4_shr(vf3, 13); |
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const v128_t vmantw0 = wasm_v128_and(vf0, vmanth_mask); |
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const v128_t vmantw1 = wasm_v128_and(vf1, vmanth_mask); |
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const v128_t vmantw2 = wasm_v128_and(vf2, vmanth_mask); |
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const v128_t vmantw3 = wasm_v128_and(vf3, vmanth_mask); |
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vexpw0 = wasm_v128_and(vexpw0, vexph_mask); |
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vexpw1 = wasm_v128_and(vexpw1, vexph_mask); |
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vexpw2 = wasm_v128_and(vexpw2, vexph_mask); |
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vexpw3 = wasm_v128_and(vexpw3, vexph_mask); |
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const v128_t vnonsignw0 = wasm_i32x4_add(vmantw0, vexpw0); |
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const v128_t vnonsignw1 = wasm_i32x4_add(vmantw1, vexpw1); |
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const v128_t vnonsignw2 = wasm_i32x4_add(vmantw2, vexpw2); |
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const v128_t vnonsignw3 = wasm_i32x4_add(vmantw3, vexpw3); |
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const v128_t vnonsignh0 = wasm_i16x8_narrow_i32x4(vnonsignw0, vnonsignw1); |
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const v128_t vnonsignh1 = wasm_i16x8_narrow_i32x4(vnonsignw2, vnonsignw3); |
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const v128_t vabsh0 = wasm_i16x8_relaxed_laneselect(vnanh, vnonsignh0, vnanmaskh0); |
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const v128_t vabsh1 = wasm_i16x8_relaxed_laneselect(vnanh, vnonsignh1, vnanmaskh1); |
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const v128_t vh0 = wasm_v128_or(vabsh0, vsignh0); |
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const v128_t vh1 = wasm_v128_or(vabsh1, vsignh1); |
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wasm_v128_store(o, vh0); |
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wasm_v128_store(o + 8, vh1); |
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o += 16; |
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} |
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for (; batch >= 8 * sizeof(float); batch -= 8 * sizeof(float)) { |
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const v128_t vx_lo = wasm_v128_load(input); |
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const v128_t vx_hi = wasm_v128_load(input + 4); |
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input += 8; |
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const v128_t vabsx_lo = wasm_f32x4_abs(vx_lo); |
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const v128_t vabsx_hi = wasm_f32x4_abs(vx_hi); |
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const v128_t vsignx_lo = wasm_v128_xor(vx_lo, vabsx_lo); |
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const v128_t vsignx_hi = wasm_v128_xor(vx_hi, vabsx_hi); |
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v128_t vbias_lo = wasm_i32x4_add(vabsx_lo, vexp_bias); |
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v128_t vbias_hi = wasm_i32x4_add(vabsx_hi, vexp_bias); |
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v128_t vf_lo = wasm_f32x4_mul(vabsx_lo, vscale_to_inf); |
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v128_t vf_hi = wasm_f32x4_mul(vabsx_hi, vscale_to_inf); |
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const v128_t vnanmaskw_lo = wasm_i32x4_gt(vabsx_lo, vexpw_max); |
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const v128_t vnanmaskw_hi = wasm_i32x4_gt(vabsx_hi, vexpw_max); |
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vbias_lo = wasm_v128_and(vbias_lo, vexpw_max); |
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vbias_hi = wasm_v128_and(vbias_hi, vexpw_max); |
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vf_lo = wasm_f32x4_mul(vf_lo, vscale_to_zero); |
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vf_hi = wasm_f32x4_mul(vf_hi, vscale_to_zero); |
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const v128_t vnanmaskh = wasm_i16x8_narrow_i32x4(vnanmaskw_lo, vnanmaskw_hi); |
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const v128_t vsignh = wasm_i16x8_narrow_i32x4(vsignx_lo, vsignx_hi); |
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vbias_lo = wasm_i16x8_max(vbias_lo, vbias_min); |
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vbias_hi = wasm_i16x8_max(vbias_hi, vbias_min); |
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vf_lo = wasm_f32x4_add(vf_lo, vbias_lo); |
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vf_hi = wasm_f32x4_add(vf_hi, vbias_hi); |
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v128_t vexpw_lo = wasm_i32x4_shr(vf_lo, 13); |
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v128_t vexpw_hi = wasm_i32x4_shr(vf_hi, 13); |
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const v128_t vmantw_lo = wasm_v128_and(vf_lo, vmanth_mask); |
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const v128_t vmantw_hi = wasm_v128_and(vf_hi, vmanth_mask); |
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vexpw_lo = wasm_v128_and(vexpw_lo, vexph_mask); |
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vexpw_hi = wasm_v128_and(vexpw_hi, vexph_mask); |
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const v128_t vnonsignw_lo = wasm_i32x4_add(vmantw_lo, vexpw_lo); |
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const v128_t vnonsignw_hi = wasm_i32x4_add(vmantw_hi, vexpw_hi); |
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const v128_t vnonsignh = wasm_i16x8_narrow_i32x4(vnonsignw_lo, vnonsignw_hi); |
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const v128_t vabsh = wasm_i16x8_relaxed_laneselect(vnanh, vnonsignh, vnanmaskh); |
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const v128_t vh = wasm_v128_or(vabsh, vsignh); |
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wasm_v128_store(o, vh); |
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o += 8; |
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} |
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if XNN_UNPREDICTABLE(batch != 0) { |
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const v128_t vx_lo = wasm_v128_load(input); |
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const float* input_hi = (const float*) ((uintptr_t) input + (batch & (4 * sizeof(float)))); |
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const v128_t vx_hi = wasm_v128_load(input_hi); |
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const v128_t vabsx_lo = wasm_f32x4_abs(vx_lo); |
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const v128_t vabsx_hi = wasm_f32x4_abs(vx_hi); |
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const v128_t vsignx_lo = wasm_v128_xor(vx_lo, vabsx_lo); |
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const v128_t vsignx_hi = wasm_v128_xor(vx_hi, vabsx_hi); |
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v128_t vbias_lo = wasm_i32x4_add(vabsx_lo, vexp_bias); |
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v128_t vbias_hi = wasm_i32x4_add(vabsx_hi, vexp_bias); |
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v128_t vf_lo = wasm_f32x4_mul(vabsx_lo, vscale_to_inf); |
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v128_t vf_hi = wasm_f32x4_mul(vabsx_hi, vscale_to_inf); |
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const v128_t vnanmaskw_lo = wasm_i32x4_gt(vabsx_lo, vexpw_max); |
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const v128_t vnanmaskw_hi = wasm_i32x4_gt(vabsx_hi, vexpw_max); |
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vbias_lo = wasm_v128_and(vbias_lo, vexpw_max); |
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vbias_hi = wasm_v128_and(vbias_hi, vexpw_max); |
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vf_lo = wasm_f32x4_mul(vf_lo, vscale_to_zero); |
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vf_hi = wasm_f32x4_mul(vf_hi, vscale_to_zero); |
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const v128_t vnanmaskh = wasm_i16x8_narrow_i32x4(vnanmaskw_lo, vnanmaskw_hi); |
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const v128_t vsignh = wasm_i16x8_narrow_i32x4(vsignx_lo, vsignx_hi); |
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vbias_lo = wasm_i16x8_max(vbias_lo, vbias_min); |
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vbias_hi = wasm_i16x8_max(vbias_hi, vbias_min); |
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vf_lo = wasm_f32x4_add(vf_lo, vbias_lo); |
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vf_hi = wasm_f32x4_add(vf_hi, vbias_hi); |
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v128_t vexpw_lo = wasm_i32x4_shr(vf_lo, 13); |
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v128_t vexpw_hi = wasm_i32x4_shr(vf_hi, 13); |
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const v128_t vmantw_lo = wasm_v128_and(vf_lo, vmanth_mask); |
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const v128_t vmantw_hi = wasm_v128_and(vf_hi, vmanth_mask); |
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vexpw_lo = wasm_v128_and(vexpw_lo, vexph_mask); |
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vexpw_hi = wasm_v128_and(vexpw_hi, vexph_mask); |
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const v128_t vnonsignw_lo = wasm_i32x4_add(vmantw_lo, vexpw_lo); |
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const v128_t vnonsignw_hi = wasm_i32x4_add(vmantw_hi, vexpw_hi); |
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const v128_t vnonsignh = wasm_i16x8_narrow_i32x4(vnonsignw_lo, vnonsignw_hi); |
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const v128_t vabsh = wasm_i16x8_relaxed_laneselect(vnanh, vnonsignh, vnanmaskh); |
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v128_t vh = wasm_v128_or(vabsh, vsignh); |
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if (batch & (4 * sizeof(float))) { |
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wasm_v128_store64_lane(o, vh, 0); |
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vh = wasm_v64x2_shuffle(vh, vh, 1, 1); |
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o += 4; |
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} |
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if (batch & (2 * sizeof(float))) { |
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wasm_v128_store32_lane(o, vh, 0); |
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vh = wasm_i64x2_shr(vh, 32); |
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o += 2; |
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} |
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if (batch & (1 * sizeof(float))) { |
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wasm_v128_store16_lane(o, vh, 0); |
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} |
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} |
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} |
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