diff options
Diffstat (limited to 'src/cpu/kernels/activation/generic/neon/qasymm8.cpp')
| -rw-r--r-- | src/cpu/kernels/activation/generic/neon/qasymm8.cpp | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/src/cpu/kernels/activation/generic/neon/qasymm8.cpp b/src/cpu/kernels/activation/generic/neon/qasymm8.cpp index 67d9e0a8ca..05a0b505ca 100644 --- a/src/cpu/kernels/activation/generic/neon/qasymm8.cpp +++ b/src/cpu/kernels/activation/generic/neon/qasymm8.cpp @@ -58,9 +58,13 @@ void neon_qasymm8_activation(const ITensor *src, ITensor *dst, const ActivationL const qasymm8_t b = quantize_qasymm8(act_info.b(), qi_in); const qasymm8_t const_0 = quantize_qasymm8(0.f, qi_in); const qasymm8x16_t vconst_0 = vdupq_n_u8(const_0); + const auto vconst_1 = vdupq_n_f32(1.f); + #ifndef __aarch64__ - const auto vconst_1 = vdupq_n_f32(1.f); const auto vconst_0_f32 = vdupq_n_f32(0); +#else // #ifndef __aarch64__ + const auto const_inv_2 = vdupq_n_f32(0.5f); + const auto const_inv_sqrt_2 = vdupq_n_f32(0.70710678118f); #endif // __aarch64__ const float32x4_t va_f32 = vdupq_n_f32(act_info.a()); const float32x4_t vb_f32 = vdupq_n_f32(act_info.b()); @@ -193,6 +197,23 @@ void neon_qasymm8_activation(const ITensor *src, ITensor *dst, const ActivationL tmp = vquantize(tmp_dep, qi_out); } +#else // #ifndef __aarch64__ + else if (act == ActivationLayerInfo::ActivationFunction::GELU) + { + const auto vin_deq = vdequantize(vin, qi_in); + // Perform activation + const float32x4x4_t tmp_dep = + { + { + wrapper::vmul(vin_deq.val[0], wrapper::vmul(const_inv_2, wrapper::vadd(vconst_1, wrapper::verf(wrapper::vmul(vin_deq.val[0], const_inv_sqrt_2))))), + wrapper::vmul(vin_deq.val[1], wrapper::vmul(const_inv_2, wrapper::vadd(vconst_1, wrapper::verf(wrapper::vmul(vin_deq.val[1], const_inv_sqrt_2))))), + wrapper::vmul(vin_deq.val[2], wrapper::vmul(const_inv_2, wrapper::vadd(vconst_1, wrapper::verf(wrapper::vmul(vin_deq.val[2], const_inv_sqrt_2))))), + wrapper::vmul(vin_deq.val[3], wrapper::vmul(const_inv_2, wrapper::vadd(vconst_1, wrapper::verf(wrapper::vmul(vin_deq.val[3], const_inv_sqrt_2))))), + } + }; + // Re-quantize to new output space + tmp = vquantize(tmp_dep, qi_out); + } #endif // __aarch64__ else { @@ -248,6 +269,12 @@ void neon_qasymm8_activation(const ITensor *src, ITensor *dst, const ActivationL tmp_f = tmp_f > 0 ? tmp_f : tmp_f * a_f32; tmp = quantize_qasymm8(tmp_f, qi_out); } + else if(act == ActivationLayerInfo::ActivationFunction::GELU) + { + float tmp_f = dequantize_qasymm8(in, qi_in); + tmp = tmp_f * 0.5f * (1.0f + std::erff(in / 1.41421356237f)); + tmp = quantize_qasymm8(tmp_f, qi_out); + } #endif // __aarch64__ else { |