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Diffstat (limited to 'arm_compute/core/NEON/NEMath.inl')
| -rw-r--r-- | arm_compute/core/NEON/NEMath.inl | 529 |
1 files changed, 0 insertions, 529 deletions
diff --git a/arm_compute/core/NEON/NEMath.inl b/arm_compute/core/NEON/NEMath.inl deleted file mode 100644 index 032bfde238..0000000000 --- a/arm_compute/core/NEON/NEMath.inl +++ /dev/null @@ -1,529 +0,0 @@ -/* - * Copyright (c) 2016-2020 ARM Limited. - * - * SPDX-License-Identifier: MIT - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to - * deal in the Software without restriction, including without limitation the - * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or - * sell copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all - * copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ -#include <cmath> -#include <limits> - -#ifndef M_PI -#define M_PI (3.14159265358979323846) -#endif // M_PI - -namespace arm_compute -{ -/** Exponent polynomial coefficients */ -const std::array<float32x4_t, 8> exp_tab = -{ - { - vdupq_n_f32(1.f), - vdupq_n_f32(0.0416598916054f), - vdupq_n_f32(0.500000596046f), - vdupq_n_f32(0.0014122662833f), - vdupq_n_f32(1.00000011921f), - vdupq_n_f32(0.00833693705499f), - vdupq_n_f32(0.166665703058f), - vdupq_n_f32(0.000195780929062f), - } -}; - -/** Logarithm polynomial coefficients */ -const std::array<float32x4_t, 8> log_tab = -{ - { - vdupq_n_f32(-2.29561495781f), - vdupq_n_f32(-2.47071170807f), - vdupq_n_f32(-5.68692588806f), - vdupq_n_f32(-0.165253549814f), - vdupq_n_f32(5.17591238022f), - vdupq_n_f32(0.844007015228f), - vdupq_n_f32(4.58445882797f), - vdupq_n_f32(0.0141278216615f), - } -}; - -/** Sin polynomial coefficients */ -constexpr float te_sin_coeff2 = 0.166666666666f; // 1/(2*3) -constexpr float te_sin_coeff3 = 0.05f; // 1/(4*5) -constexpr float te_sin_coeff4 = 0.023809523810f; // 1/(6*7) -constexpr float te_sin_coeff5 = 0.013888888889f; // 1/(8*9) - -#ifndef DOXYGEN_SKIP_THIS -inline float32x4_t vfloorq_f32(float32x4_t val) -{ - static const float32x4_t CONST_1 = vdupq_n_f32(1.f); - - const int32x4_t z = vcvtq_s32_f32(val); - const float32x4_t r = vcvtq_f32_s32(z); - - return vbslq_f32(vcgtq_f32(r, val), vsubq_f32(r, CONST_1), r); -} - -inline float32x4_t vroundq_rte_f32(float32x4_t val) -{ -#ifdef __aarch64__ - return vrndnq_f32(val); -#else // __aarch64__ - static const float32x4_t CONST_HALF_FLOAT = vdupq_n_f32(0.5f); - static const float32x4_t CONST_1_FLOAT = vdupq_n_f32(1.f); - static const int32x4_t CONST_1_INT = vdupq_n_s32(1); - const float32x4_t floor_val = vfloorq_f32(val); - const float32x4_t diff = vsubq_f32(val, floor_val); - - /* - * Select the floor value when (diff<0.5 || (diff==0.5 && floor_val%2==0). - * This condition is checked by vorrq_u32(vcltq_f32(diff, CONST_HALF_FLOAT) ,vandq_u32(vceqq_f32(diff, CONST_HALF_FLOAT) , vmvnq_u32(vtstq_s32(vandq_s32(vcvtq_s32_f32(floor_val), CONST_1_INT),CONST_1_INT)))) - */ - - return vbslq_f32(vorrq_u32(vcltq_f32(diff, CONST_HALF_FLOAT), vandq_u32(vceqq_f32(diff, CONST_HALF_FLOAT), vmvnq_u32(vtstq_s32(vandq_s32(vcvtq_s32_f32(floor_val), CONST_1_INT), CONST_1_INT)))), - floor_val, vaddq_f32(floor_val, CONST_1_FLOAT)); -#endif // __aarch64__ -} - -inline float32x2_t vinvsqrt_f32(float32x2_t x) -{ - float32x2_t sqrt_reciprocal = vrsqrte_f32(x); - sqrt_reciprocal = vmul_f32(vrsqrts_f32(vmul_f32(x, sqrt_reciprocal), sqrt_reciprocal), sqrt_reciprocal); - sqrt_reciprocal = vmul_f32(vrsqrts_f32(vmul_f32(x, sqrt_reciprocal), sqrt_reciprocal), sqrt_reciprocal); - - return sqrt_reciprocal; -} - -inline float32x4_t vinvsqrtq_f32(float32x4_t x) -{ - float32x4_t sqrt_reciprocal = vrsqrteq_f32(x); - sqrt_reciprocal = vmulq_f32(vrsqrtsq_f32(vmulq_f32(x, sqrt_reciprocal), sqrt_reciprocal), sqrt_reciprocal); - sqrt_reciprocal = vmulq_f32(vrsqrtsq_f32(vmulq_f32(x, sqrt_reciprocal), sqrt_reciprocal), sqrt_reciprocal); - - return sqrt_reciprocal; -} - -inline float32x2_t vinv_f32(float32x2_t x) -{ - float32x2_t recip = vrecpe_f32(x); - recip = vmul_f32(vrecps_f32(x, recip), recip); - recip = vmul_f32(vrecps_f32(x, recip), recip); - return recip; -} - -inline float32x4_t vinvq_f32(float32x4_t x) -{ - float32x4_t recip = vrecpeq_f32(x); - recip = vmulq_f32(vrecpsq_f32(x, recip), recip); - recip = vmulq_f32(vrecpsq_f32(x, recip), recip); - return recip; -} - -inline float32x4_t vtaylor_polyq_f32(float32x4_t x, const std::array<float32x4_t, 8> &coeffs) -{ - float32x4_t A = vmlaq_f32(coeffs[0], coeffs[4], x); - float32x4_t B = vmlaq_f32(coeffs[2], coeffs[6], x); - float32x4_t C = vmlaq_f32(coeffs[1], coeffs[5], x); - float32x4_t D = vmlaq_f32(coeffs[3], coeffs[7], x); - float32x4_t x2 = vmulq_f32(x, x); - float32x4_t x4 = vmulq_f32(x2, x2); - float32x4_t res = vmlaq_f32(vmlaq_f32(A, B, x2), vmlaq_f32(C, D, x2), x4); - return res; -} - -inline float32x4_t vexpq_f32(float32x4_t x) -{ - static const float32x4_t CONST_LN2 = vdupq_n_f32(0.6931471805f); // ln(2) - static const float32x4_t CONST_INV_LN2 = vdupq_n_f32(1.4426950408f); // 1/ln(2) - static const float32x4_t CONST_INF = vdupq_n_f32(std::numeric_limits<float>::infinity()); - static const float32x4_t CONST_MAX_INPUT = vdupq_n_f32(88.7f); - static const float32x4_t CONST_0 = vdupq_n_f32(0.f); - static const int32x4_t CONST_NEGATIVE_126 = vdupq_n_s32(-126); - - // Perform range reduction [-log(2),log(2)] - int32x4_t m = vcvtq_s32_f32(vmulq_f32(x, CONST_INV_LN2)); - float32x4_t val = vmlsq_f32(x, vcvtq_f32_s32(m), CONST_LN2); - - // Polynomial Approximation - float32x4_t poly = vtaylor_polyq_f32(val, exp_tab); - - // Reconstruct - poly = vreinterpretq_f32_s32(vqaddq_s32(vreinterpretq_s32_f32(poly), vqshlq_n_s32(m, 23))); - poly = vbslq_f32(vcltq_s32(m, CONST_NEGATIVE_126), CONST_0, poly); // Handle underflow - poly = vbslq_f32(vcgtq_f32(x, CONST_MAX_INPUT), CONST_INF, poly); // Handle overflow - - return poly; -} - -inline float32x4_t vlogq_f32(float32x4_t x) -{ - static const int32x4_t CONST_127 = vdupq_n_s32(127); // 127 - static const float32x4_t CONST_LN2 = vdupq_n_f32(0.6931471805f); // ln(2) - - // Extract exponent - int32x4_t m = vsubq_s32(vreinterpretq_s32_u32(vshrq_n_u32(vreinterpretq_u32_f32(x), 23)), CONST_127); - float32x4_t val = vreinterpretq_f32_s32(vsubq_s32(vreinterpretq_s32_f32(x), vshlq_n_s32(m, 23))); - - // Polynomial Approximation - float32x4_t poly = vtaylor_polyq_f32(val, log_tab); - - // Reconstruct - poly = vmlaq_f32(poly, vcvtq_f32_s32(m), CONST_LN2); - - return poly; -} - -inline float32x4_t vtanhq_f32(float32x4_t val) -{ - static const float32x4_t CONST_1 = vdupq_n_f32(1.f); - static const float32x4_t CONST_2 = vdupq_n_f32(2.f); - static const float32x4_t CONST_MIN_TANH = vdupq_n_f32(-10.f); - static const float32x4_t CONST_MAX_TANH = vdupq_n_f32(10.f); - - float32x4_t x = vminq_f32(vmaxq_f32(val, CONST_MIN_TANH), CONST_MAX_TANH); - float32x4_t exp2x = vexpq_f32(vmulq_f32(CONST_2, x)); - float32x4_t num = vsubq_f32(exp2x, CONST_1); - float32x4_t den = vaddq_f32(exp2x, CONST_1); - float32x4_t tanh = vmulq_f32(num, vinvq_f32(den)); - return tanh; -} - -inline float32x4_t vpowq_f32(float32x4_t val, float32x4_t n) -{ - return vexpq_f32(vmulq_f32(n, vlogq_f32(val))); -} - -inline float32x4_t vsinq_f32(float32x4_t val) -{ - const float32x4_t pi_v = vdupq_n_f32(M_PI); - const float32x4_t pio2_v = vdupq_n_f32(M_PI / 2); - const float32x4_t ipi_v = vdupq_n_f32(1 / M_PI); - - //Find positive or negative - const int32x4_t c_v = vabsq_s32(vcvtq_s32_f32(vmulq_f32(val, ipi_v))); - const uint32x4_t sign_v = vcleq_f32(val, vdupq_n_f32(0)); - const uint32x4_t odd_v = vandq_u32(vreinterpretq_u32_s32(c_v), vdupq_n_u32(1)); - - uint32x4_t neg_v = veorq_u32(odd_v, sign_v); - - //Modulus a - (n * int(a*(1/n))) - float32x4_t ma = vsubq_f32(vabsq_f32(val), vmulq_f32(pi_v, vcvtq_f32_s32(c_v))); - const uint32x4_t reb_v = vcgeq_f32(ma, pio2_v); - - //Rebase a between 0 and pi/2 - ma = vbslq_f32(reb_v, vsubq_f32(pi_v, ma), ma); - - //Taylor series - const float32x4_t ma2 = vmulq_f32(ma, ma); - - //2nd elem: x^3 / 3! - float32x4_t elem = vmulq_f32(vmulq_f32(ma, ma2), vdupq_n_f32(te_sin_coeff2)); - float32x4_t res = vsubq_f32(ma, elem); - - //3rd elem: x^5 / 5! - elem = vmulq_f32(vmulq_f32(elem, ma2), vdupq_n_f32(te_sin_coeff3)); - res = vaddq_f32(res, elem); - - //4th elem: x^7 / 7!float32x2_t vsin_f32(float32x2_t val) - elem = vmulq_f32(vmulq_f32(elem, ma2), vdupq_n_f32(te_sin_coeff4)); - res = vsubq_f32(res, elem); - - //5th elem: x^9 / 9! - elem = vmulq_f32(vmulq_f32(elem, ma2), vdupq_n_f32(te_sin_coeff5)); - res = vaddq_f32(res, elem); - - //Change of sign - neg_v = vshlq_n_u32(neg_v, 31); - res = vreinterpretq_f32_u32(veorq_u32(vreinterpretq_u32_f32(res), neg_v)); - return res; -} - -inline float32x2_t vsin_f32(float32x2_t val) -{ - const float32x2_t pi_v = vdup_n_f32(M_PI); - const float32x2_t pio2_v = vdup_n_f32(M_PI / 2); - const float32x2_t ipi_v = vdup_n_f32(1 / M_PI); - - //Find positive or negative - const int32x2_t c_v = vabs_s32(vcvt_s32_f32(vmul_f32(val, ipi_v))); - const uint32x2_t sign_v = vcle_f32(val, vdup_n_f32(0)); - const uint32x2_t odd_v = vand_u32(vreinterpret_u32_s32(c_v), vdup_n_u32(1)); - - uint32x2_t neg_v = veor_u32(odd_v, sign_v); - - //Modulus a - (n * int(a*(1/n))) - float32x2_t ma = vsub_f32(vabs_f32(val), vmul_f32(pi_v, vcvt_f32_s32(c_v))); - const uint32x2_t reb_v = vcge_f32(ma, pio2_v); - - //Rebase a between 0 and pi/2 - ma = vbsl_f32(reb_v, vsub_f32(pi_v, ma), ma); - - //Taylor series - const float32x2_t ma2 = vmul_f32(ma, ma); - - //2nd elem: x^3 / 3! - float32x2_t elem = vmul_f32(vmul_f32(ma, ma2), vdup_n_f32(te_sin_coeff2)); - float32x2_t res = vsub_f32(ma, elem); - - //3rd elem: x^5 / 5! - elem = vmul_f32(vmul_f32(elem, ma2), vdup_n_f32(te_sin_coeff3)); - res = vadd_f32(res, elem); - - //4th elem: x^7 / 7!float32x2_t vsin_f32(float32x2_t val) - elem = vmul_f32(vmul_f32(elem, ma2), vdup_n_f32(te_sin_coeff4)); - res = vsub_f32(res, elem); - - //5th elem: x^9 / 9! - elem = vmul_f32(vmul_f32(elem, ma2), vdup_n_f32(te_sin_coeff5)); - res = vadd_f32(res, elem); - - //Change of sign - neg_v = vshl_n_u32(neg_v, 31); - res = vreinterpret_f32_u32(veor_u32(vreinterpret_u32_f32(res), neg_v)); - return res; -} - -#endif /* DOXYGEN_SKIP_THIS */ - -inline int32x4_t rounding_divide_by_pow2(int32x4_t x, int32x4_t exponent) -{ - const int32x4_t shift_vec = vnegq_s32(exponent); - const int32x4_t fixup = vshrq_n_s32(vandq_s32(x, shift_vec), 31); - const int32x4_t fixed_up_x = vqaddq_s32(x, fixup); - return vrshlq_s32(fixed_up_x, shift_vec); -} - -inline int32x4_t rounding_divide_by_pow2(int32x4_t x, int exponent) -{ - const int32x4_t shift_vec = vdupq_n_s32(-exponent); - const int32x4_t fixup = vshrq_n_s32(vandq_s32(x, shift_vec), 31); - const int32x4_t fixed_up_x = vqaddq_s32(x, fixup); - return vrshlq_s32(fixed_up_x, shift_vec); -} - -inline int32_t rounding_divide_by_pow2(int32_t x, int exponent) -{ - const int32_t mask = (1 << exponent) - 1; - const int32_t threshold = (mask >> 1) + (x < 0 ? 1 : 0); - return (x >> exponent) + ((x & mask) > threshold ? 1 : 0); -} - -inline float32x4x4_t convert_uint8x16_to_float32x4x4(const uint8x16_t &in) -{ - float32x4x4_t out; - - const auto tmp1 = vmovl_u8(vget_low_u8(in)); - out.val[0] = vcvtq_f32_u32(vmovl_u16(vget_low_u16(tmp1))); - out.val[1] = vcvtq_f32_u32(vmovl_u16(vget_high_u16(tmp1))); - - const auto tmp2 = vmovl_u8(vget_high_u8(in)); - out.val[2] = vcvtq_f32_u32(vmovl_u16(vget_low_u16(tmp2))); - out.val[3] = vcvtq_f32_u32(vmovl_u16(vget_high_u16(tmp2))); - return out; -} - -inline float32x4x4_t convert_int8x16_to_float32x4x4(const int8x16_t &in) -{ - float32x4x4_t out; - - const auto tmp1 = vmovl_s8(vget_low_s8(in)); - out.val[0] = vcvtq_f32_s32(vmovl_s16(vget_low_s16(tmp1))); - out.val[1] = vcvtq_f32_s32(vmovl_s16(vget_high_s16(tmp1))); - - const auto tmp2 = vmovl_s8(vget_high_s8(in)); - out.val[2] = vcvtq_f32_s32(vmovl_s16(vget_low_s16(tmp2))); - out.val[3] = vcvtq_f32_s32(vmovl_s16(vget_high_s16(tmp2))); - return out; -} - -template <> -inline float32x4x4_t convert_to_float32x4x4(const uint8x16_t &in) -{ - return convert_uint8x16_to_float32x4x4(in); -} - -template <> -inline float32x4x4_t convert_to_float32x4x4(const int8x16_t &in) -{ - return convert_int8x16_to_float32x4x4(in); -} - -inline void convert_float32x4x3_to_uint8x8x3(const float32x4x3_t &in1, const float32x4x3_t &in2, uint8x8x3_t &out) -{ - out.val[0] = vqmovn_u16(vcombine_u16(vqmovn_u32(vcvtq_u32_f32(in1.val[0])), - vqmovn_u32(vcvtq_u32_f32(in2.val[0])))); - out.val[1] = vqmovn_u16(vcombine_u16(vqmovn_u32(vcvtq_u32_f32(in1.val[1])), - vqmovn_u32(vcvtq_u32_f32(in2.val[1])))); - out.val[2] = vqmovn_u16(vcombine_u16(vqmovn_u32(vcvtq_u32_f32(in1.val[2])), - vqmovn_u32(vcvtq_u32_f32(in2.val[2])))); -} - -inline void convert_float32x4x4_to_uint8x16(const float32x4x4_t &in, uint8x16_t &out) -{ - const auto low = vcombine_u16(vqmovn_u32(vcvtq_u32_f32(in.val[0])), - vqmovn_u32(vcvtq_u32_f32(in.val[1]))); - const auto high = vcombine_u16(vqmovn_u32(vcvtq_u32_f32(in.val[2])), - vqmovn_u32(vcvtq_u32_f32(in.val[3]))); - out = vcombine_u8(vqmovn_u16(low), vqmovn_u16(high)); -} - -inline void convert_float32x4x4_to_int8x16(const float32x4x4_t &in, int8x16_t &out) -{ - const auto low = vcombine_s16(vqmovn_s32(vcvtq_s32_f32(in.val[0])), - vqmovn_s32(vcvtq_s32_f32(in.val[1]))); - const auto high = vcombine_s16(vqmovn_s32(vcvtq_s32_f32(in.val[2])), - vqmovn_s32(vcvtq_s32_f32(in.val[3]))); - out = vcombine_s8(vqmovn_s16(low), vqmovn_s16(high)); -} - -#ifdef __ARM_FEATURE_FP16_VECTOR_ARITHMETIC -/** Exponent polynomial coefficients */ -/** Logarithm polynomial coefficients */ -#ifndef DOXYGEN_SKIP_THIS -inline float16x8_t vfloorq_f16(float16x8_t val) -{ - static const float16x8_t CONST_1 = vdupq_n_f16(1.f); - - const int16x8_t z = vcvtq_s16_f16(val); - const float16x8_t r = vcvtq_f16_s16(z); - - return vbslq_f16(vcgtq_f16(r, val), vsubq_f16(r, CONST_1), r); -} - -inline float16x8_t vroundq_rte_f16(float16x8_t val) -{ - return vrndnq_f16(val); -} - -inline float16x4_t vinvsqrt_f16(float16x4_t x) -{ - float16x4_t sqrt_reciprocal = vrsqrte_f16(x); - sqrt_reciprocal = vmul_f16(vrsqrts_f16(vmul_f16(x, sqrt_reciprocal), sqrt_reciprocal), sqrt_reciprocal); - sqrt_reciprocal = vmul_f16(vrsqrts_f16(vmul_f16(x, sqrt_reciprocal), sqrt_reciprocal), sqrt_reciprocal); - return sqrt_reciprocal; -} - -inline float16x8_t vinvsqrtq_f16(float16x8_t x) -{ - float16x8_t sqrt_reciprocal = vrsqrteq_f16(x); - sqrt_reciprocal = vmulq_f16(vrsqrtsq_f16(vmulq_f16(x, sqrt_reciprocal), sqrt_reciprocal), sqrt_reciprocal); - sqrt_reciprocal = vmulq_f16(vrsqrtsq_f16(vmulq_f16(x, sqrt_reciprocal), sqrt_reciprocal), sqrt_reciprocal); - return sqrt_reciprocal; -} - -inline float16x4_t vinv_f16(float16x4_t x) -{ - float16x4_t recip = vrecpe_f16(x); - recip = vmul_f16(vrecps_f16(x, recip), recip); - recip = vmul_f16(vrecps_f16(x, recip), recip); - return recip; -} - -inline float16x8_t vinvq_f16(float16x8_t x) -{ - float16x8_t recip = vrecpeq_f16(x); - recip = vmulq_f16(vrecpsq_f16(x, recip), recip); - recip = vmulq_f16(vrecpsq_f16(x, recip), recip); - return recip; -} - -inline float16x8_t vtanhq_f16(float16x8_t val) -{ - const float16x8_t CONST_1 = vdupq_n_f16(1.f); - const float16x8_t CONST_2 = vdupq_n_f16(2.f); - const float16x8_t CONST_MIN_TANH = vdupq_n_f16(-10.f); - const float16x8_t CONST_MAX_TANH = vdupq_n_f16(10.f); - - const float16x8_t x = vminq_f16(vmaxq_f16(val, CONST_MIN_TANH), CONST_MAX_TANH); - const float16x8_t exp2x = vexpq_f16(vmulq_f16(CONST_2, x)); - const float16x8_t num = vsubq_f16(exp2x, CONST_1); - const float16x8_t den = vaddq_f16(exp2x, CONST_1); - const float16x8_t tanh = vmulq_f16(num, vinvq_f16(den)); - return tanh; -} - -inline float16x8_t vtaylor_polyq_f16(float16x8_t x, const std::array<float16x8_t, 8> &coeffs) -{ - const float16x8_t A = vaddq_f16(coeffs[0], vmulq_f16(coeffs[4], x)); - const float16x8_t B = vaddq_f16(coeffs[2], vmulq_f16(coeffs[6], x)); - const float16x8_t C = vaddq_f16(coeffs[1], vmulq_f16(coeffs[5], x)); - const float16x8_t D = vaddq_f16(coeffs[3], vmulq_f16(coeffs[7], x)); - const float16x8_t x2 = vmulq_f16(x, x); - const float16x8_t x4 = vmulq_f16(x2, x2); - const float16x8_t res = vaddq_f16(vaddq_f16(A, vmulq_f16(B, x2)), vmulq_f16(vaddq_f16(C, vmulq_f16(D, x2)), x4)); - return res; -} - -inline float16x8_t vexpq_f16(float16x8_t x) -{ - // TODO (COMPMID-1535) : Revisit FP16 approximations - const float32x4_t x_high = vcvt_f32_f16(vget_high_f16(x)); - const float32x4_t x_low = vcvt_f32_f16(vget_low_f16(x)); - - const float16x8_t res = vcombine_f16(vcvt_f16_f32(vexpq_f32(x_low)), vcvt_f16_f32(vexpq_f32(x_high))); - return res; -} - -inline float16x8_t vlogq_f16(float16x8_t x) -{ - // TODO (COMPMID-1535) : Revisit FP16 approximations - const float32x4_t x_high = vcvt_f32_f16(vget_high_f16(x)); - const float32x4_t x_low = vcvt_f32_f16(vget_low_f16(x)); - - const float16x8_t res = vcombine_f16(vcvt_f16_f32(vlogq_f32(x_low)), vcvt_f16_f32(vlogq_f32(x_high))); - return res; -} - -inline float16x8_t vpowq_f16(float16x8_t val, float16x8_t n) -{ - // TODO (giaiod01) - COMPMID-1535 - float32x4_t n0_f32 = vcvt_f32_f16(vget_low_f16(n)); - float32x4_t n1_f32 = vcvt_f32_f16(vget_high_f16(n)); - float32x4_t val0_f32 = vcvt_f32_f16(vget_low_f16(val)); - float32x4_t val1_f32 = vcvt_f32_f16(vget_high_f16(val)); - - float32x4_t res0_f32 = vexpq_f32(vmulq_f32(n0_f32, vlogq_f32(val0_f32))); - float32x4_t res1_f32 = vexpq_f32(vmulq_f32(n1_f32, vlogq_f32(val1_f32))); - - return vcombine_f16(vcvt_f16_f32(res0_f32), vcvt_f16_f32(res1_f32)); -} - -inline float16x8_t vsinq_f16(float16x8_t val) -{ - const float32x4_t val_high = vcvt_f32_f16(vget_high_f16(val)); - const float32x4_t val_low = vcvt_f32_f16(vget_low_f16(val)); - - const float32x4_t res_high = vsinq_f32(val_high); - const float32x4_t res_low = vsinq_f32(val_low); - - return vcombine_f16(vcvt_f16_f32(res_low), vcvt_f16_f32(res_high)); -} - -inline float16x4_t vsin_f16(float16x4_t val) -{ - const float32x4_t val_f32 = vcvt_f32_f16(val); - const float32x2_t val_high = vget_high_f32(val_f32); - const float32x2_t val_low = vget_low_f32(val_f32); - - const float32x2_t res_high = vsin_f32(val_high); - const float32x2_t res_low = vsin_f32(val_low); - - return vcvt_f16_f32(vcombine_f32(res_low, res_high)); -} - -#endif /* DOXYGEN_SKIP_THIS */ -#endif /* __ARM_FEATURE_FP16_VECTOR_ARITHMETIC */ -} // namespace arm_compute |