| // Auto-generated file. Do not edit! |
| // Template: src/f16-f32-vcvt/wasmsimd-int32.c.in |
| // Generator: tools/xngen |
| // |
| // Copyright 2021 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/common.h> |
| #include <xnnpack/vcvt.h> |
| |
| |
| void xnn_f16_f32_vcvt_ukernel__wasmsimd_int32_x16( |
| size_t n, |
| const void* input, |
| float* output, |
| const union xnn_f16_f32_cvt_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS |
| { |
| assert(n != 0); |
| assert(n % sizeof(uint16_t) == 0); |
| assert(input != NULL); |
| assert(output != NULL); |
| |
| const v128_t vsign_mask = wasm_v128_load64_splat(params->wasmsimd_int32.sign_mask); |
| const v128_t vexp_offset = wasm_v128_load64_splat(params->wasmsimd_int32.exp_offset); |
| const v128_t vexp_scale = wasm_v128_load64_splat(params->wasmsimd_int32.exp_scale); |
| const v128_t vmagic_bias = wasm_v128_load64_splat(params->wasmsimd_int32.magic_bias); |
| const v128_t vdenorm_cutoff = wasm_v128_load64_splat(params->wasmsimd_int32.denorm_cutoff); |
| |
| const uint16_t* i = (const uint16_t*) input; |
| for (; n >= 16 * sizeof(uint16_t); n -= 16 * sizeof(uint16_t)) { |
| const v128_t vh0 = wasm_v128_load(i); |
| const v128_t vh1 = wasm_v128_load(i + 8); |
| i += 16; |
| |
| const v128_t vzero = wasm_i16x8_const_splat(0); |
| const v128_t vw0 = wasm_v16x8_shuffle(vzero, vh0, 0, 8, 1, 9, 2, 10, 3, 11); |
| const v128_t vw1 = wasm_v16x8_shuffle(vzero, vh0, 4, 12, 5, 13, 6, 14, 7, 15); |
| const v128_t vw2 = wasm_v16x8_shuffle(vzero, vh1, 0, 8, 1, 9, 2, 10, 3, 11); |
| const v128_t vw3 = wasm_v16x8_shuffle(vzero, vh1, 4, 12, 5, 13, 6, 14, 7, 15); |
| |
| const v128_t vsign0 = wasm_v128_and(vw0, vsign_mask); |
| const v128_t vsign1 = wasm_v128_and(vw1, vsign_mask); |
| const v128_t vsign2 = wasm_v128_and(vw2, vsign_mask); |
| const v128_t vsign3 = wasm_v128_and(vw3, vsign_mask); |
| |
| const v128_t vnonsign0 = wasm_v128_xor(vw0, vsign0); |
| const v128_t vnonsign1 = wasm_v128_xor(vw1, vsign1); |
| const v128_t vnonsign2 = wasm_v128_xor(vw2, vsign2); |
| const v128_t vnonsign3 = wasm_v128_xor(vw3, vsign3); |
| |
| const v128_t vnorm0 = wasm_f32x4_mul(wasm_i32x4_add(wasm_u32x4_shr(vnonsign0, 3), vexp_offset), vexp_scale); |
| const v128_t vnorm1 = wasm_f32x4_mul(wasm_i32x4_add(wasm_u32x4_shr(vnonsign1, 3), vexp_offset), vexp_scale); |
| const v128_t vnorm2 = wasm_f32x4_mul(wasm_i32x4_add(wasm_u32x4_shr(vnonsign2, 3), vexp_offset), vexp_scale); |
| const v128_t vnorm3 = wasm_f32x4_mul(wasm_i32x4_add(wasm_u32x4_shr(vnonsign3, 3), vexp_offset), vexp_scale); |
| |
| const v128_t vdenorm0 = wasm_f32x4_sub(wasm_v128_or(wasm_u32x4_shr(vnonsign0, 16), vmagic_bias), vmagic_bias); |
| const v128_t vdenorm1 = wasm_f32x4_sub(wasm_v128_or(wasm_u32x4_shr(vnonsign1, 16), vmagic_bias), vmagic_bias); |
| const v128_t vdenorm2 = wasm_f32x4_sub(wasm_v128_or(wasm_u32x4_shr(vnonsign2, 16), vmagic_bias), vmagic_bias); |
| const v128_t vdenorm3 = wasm_f32x4_sub(wasm_v128_or(wasm_u32x4_shr(vnonsign3, 16), vmagic_bias), vmagic_bias); |
| |
| const v128_t vxmask0 = wasm_i32x4_gt(vnonsign0, vdenorm_cutoff); |
| const v128_t vxmask1 = wasm_i32x4_gt(vnonsign1, vdenorm_cutoff); |
| const v128_t vxmask2 = wasm_i32x4_gt(vnonsign2, vdenorm_cutoff); |
| const v128_t vxmask3 = wasm_i32x4_gt(vnonsign3, vdenorm_cutoff); |
| |
| const v128_t vf0 = wasm_v128_or(vsign0, wasm_v128_bitselect(vnorm0, vdenorm0, vxmask0)); |
| const v128_t vf1 = wasm_v128_or(vsign1, wasm_v128_bitselect(vnorm1, vdenorm1, vxmask1)); |
| const v128_t vf2 = wasm_v128_or(vsign2, wasm_v128_bitselect(vnorm2, vdenorm2, vxmask2)); |
| const v128_t vf3 = wasm_v128_or(vsign3, wasm_v128_bitselect(vnorm3, vdenorm3, vxmask3)); |
| |
| wasm_v128_store(output, vf0); |
| wasm_v128_store(output + 4, vf1); |
| wasm_v128_store(output + 8, vf2); |
| wasm_v128_store(output + 12, vf3); |
| output += 16; |
| } |
| for (; n >= 8 * sizeof(uint16_t); n -= 8 * sizeof(uint16_t)) { |
| const v128_t vh = wasm_v128_load(i); |
| i += 8; |
| |
| const v128_t vzero = wasm_i16x8_const_splat(0); |
| const v128_t vw_lo = wasm_v16x8_shuffle(vzero, vh, 0, 8, 1, 9, 2, 10, 3, 11); |
| const v128_t vw_hi = wasm_v16x8_shuffle(vzero, vh, 4, 12, 5, 13, 6, 14, 7, 15); |
| |
| const v128_t vsign_lo = wasm_v128_and(vw_lo, vsign_mask); |
| const v128_t vsign_hi = wasm_v128_and(vw_hi, vsign_mask); |
| |
| const v128_t vnonsign_lo = wasm_v128_xor(vw_lo, vsign_lo); |
| const v128_t vnonsign_hi = wasm_v128_xor(vw_hi, vsign_hi); |
| |
| const v128_t vnorm_lo = wasm_f32x4_mul(wasm_i32x4_add(wasm_u32x4_shr(vnonsign_lo, 3), vexp_offset), vexp_scale); |
| const v128_t vnorm_hi = wasm_f32x4_mul(wasm_i32x4_add(wasm_u32x4_shr(vnonsign_hi, 3), vexp_offset), vexp_scale); |
| |
| const v128_t vdenorm_lo = wasm_f32x4_sub(wasm_v128_or(wasm_u32x4_shr(vnonsign_lo, 16), vmagic_bias), vmagic_bias); |
| const v128_t vdenorm_hi = wasm_f32x4_sub(wasm_v128_or(wasm_u32x4_shr(vnonsign_hi, 16), vmagic_bias), vmagic_bias); |
| |
| const v128_t vxmask_lo = wasm_i32x4_gt(vnonsign_lo, vdenorm_cutoff); |
| const v128_t vxmask_hi = wasm_i32x4_gt(vnonsign_hi, vdenorm_cutoff); |
| |
| const v128_t vf_lo = wasm_v128_or(vsign_lo, wasm_v128_bitselect(vnorm_lo, vdenorm_lo, vxmask_lo)); |
| const v128_t vf_hi = wasm_v128_or(vsign_hi, wasm_v128_bitselect(vnorm_hi, vdenorm_hi, vxmask_hi)); |
| |
| wasm_v128_store(output, vf_lo); |
| wasm_v128_store(output + 4, vf_hi); |
| output += 8; |
| } |
| if XNN_UNLIKELY(n != 0) { |
| assert(n >= 1 * sizeof(uint16_t)); |
| assert(n <= 7 * sizeof(uint16_t)); |
| const v128_t vh = wasm_v128_load(i); |
| |
| const v128_t vzero = wasm_i16x8_const_splat(0); |
| const v128_t vw_lo = wasm_v16x8_shuffle(vzero, vh, 0, 8, 1, 9, 2, 10, 3, 11); |
| const v128_t vw_hi = wasm_v16x8_shuffle(vzero, vh, 4, 12, 5, 13, 6, 14, 7, 15); |
| |
| const v128_t vsign_lo = wasm_v128_and(vw_lo, vsign_mask); |
| const v128_t vsign_hi = wasm_v128_and(vw_hi, vsign_mask); |
| |
| const v128_t vnonsign_lo = wasm_v128_xor(vw_lo, vsign_lo); |
| const v128_t vnonsign_hi = wasm_v128_xor(vw_hi, vsign_hi); |
| |
| const v128_t vnorm_lo = wasm_f32x4_mul(wasm_i32x4_add(wasm_u32x4_shr(vnonsign_lo, 3), vexp_offset), vexp_scale); |
| const v128_t vnorm_hi = wasm_f32x4_mul(wasm_i32x4_add(wasm_u32x4_shr(vnonsign_hi, 3), vexp_offset), vexp_scale); |
| |
| const v128_t vdenorm_lo = wasm_f32x4_sub(wasm_v128_or(wasm_u32x4_shr(vnonsign_lo, 16), vmagic_bias), vmagic_bias); |
| const v128_t vdenorm_hi = wasm_f32x4_sub(wasm_v128_or(wasm_u32x4_shr(vnonsign_hi, 16), vmagic_bias), vmagic_bias); |
| |
| const v128_t vxmask_lo = wasm_i32x4_gt(vnonsign_lo, vdenorm_cutoff); |
| v128_t vf = wasm_v128_or(vsign_lo, wasm_v128_bitselect(vnorm_lo, vdenorm_lo, vxmask_lo)); |
| |
| if (n & (4 * sizeof(uint16_t))) { |
| wasm_v128_store(output, vf); |
| output += 4; |
| |
| const v128_t vxmask_hi = wasm_i32x4_gt(vnonsign_hi, vdenorm_cutoff); |
| vf = wasm_v128_or(vsign_hi, wasm_v128_bitselect(vnorm_hi, vdenorm_hi, vxmask_hi)); |
| } |
| if (n & (2 * sizeof(uint16_t))) { |
| *((double*) output) = wasm_f64x2_extract_lane(vf, 0); |
| output += 2; |
| |
| vf = wasm_v64x2_shuffle(vf, vf, 1, 1); |
| } |
| if (n & (1 * sizeof(uint16_t))) { |
| *((float*) output) = wasm_f32x4_extract_lane(vf, 0); |
| } |
| } |
| } |