Michalis Spyrou | aa51a5b | 2020-11-22 00:49:42 +0000 | [diff] [blame] | 1 | /* |
Michalis Spyrou | 168d6a8 | 2022-05-03 17:15:42 +0100 | [diff] [blame] | 2 | * Copyright (c) 2020-2022 Arm Limited. |
Michalis Spyrou | aa51a5b | 2020-11-22 00:49:42 +0000 | [diff] [blame] | 3 | * |
| 4 | * SPDX-License-Identifier: MIT |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 7 | * of this software and associated documentation files (the "Software"), to |
| 8 | * deal in the Software without restriction, including without limitation the |
| 9 | * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| 10 | * sell copies of the Software, and to permit persons to whom the Software is |
| 11 | * furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in all |
| 14 | * copies or substantial portions of the Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 19 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 22 | * SOFTWARE. |
| 23 | */ |
| 24 | #ifndef ARM_COMPUTE_SVESYMM_H |
| 25 | #define ARM_COMPUTE_SVESYMM_H |
| 26 | |
| 27 | #include "arm_compute/core/utils/quantization/AsymmHelpers.h" |
| 28 | |
Michalis Spyrou | 20fca52 | 2021-06-07 14:23:57 +0100 | [diff] [blame] | 29 | #if defined(ARM_COMPUTE_ENABLE_SVE2) |
Michalis Spyrou | aa51a5b | 2020-11-22 00:49:42 +0000 | [diff] [blame] | 30 | #include "src/core/NEON/SVEMath.h" |
| 31 | #include <arm_sve.h> |
| 32 | |
| 33 | namespace arm_compute |
| 34 | { |
| 35 | /** Dequantize an sve vector holding 16-bit quantized values. |
| 36 | * |
| 37 | * @param[in] pg Predicate value. |
| 38 | * @param[in] qv Input values to be dequantized. |
| 39 | * @param[in] scale Quantization scale |
| 40 | * |
| 41 | * @return Dequantized values in an sve vector |
| 42 | */ |
| 43 | inline svfloat32x2_t svdequantize_qsymm16_z(svbool_t pg, const svint16_t &qv, float scale) |
| 44 | { |
Michalis Spyrou | 168d6a8 | 2022-05-03 17:15:42 +0100 | [diff] [blame] | 45 | const auto vscale = svdup_n_f32(scale); |
| 46 | const svfloat32x2_t vdequantized_input = svcreate2_f32(svmul_f32_z(pg, svcvt_f32_s32_z(pg, svmovlb_s32(qv)), vscale), svmul_f32_z(pg, svcvt_f32_s32_z(pg, svmovlt_s32(qv)), vscale)); |
Michalis Spyrou | aa51a5b | 2020-11-22 00:49:42 +0000 | [diff] [blame] | 47 | return vdequantized_input; |
| 48 | } |
| 49 | |
| 50 | /** Quantize an sve vector holding 8 floating point values. |
| 51 | * |
| 52 | * @param[in] pg Predicate value. |
| 53 | * @param[in] qv Input values to be quantized. |
| 54 | * @param[in] scale Quantization scale |
| 55 | * |
| 56 | * @return An sve vector holding the quantized values |
| 57 | */ |
| 58 | inline svint16_t svquantize_qsymm16_z(svbool_t pg, const svfloat32x2_t qv, float scale) |
| 59 | { |
| 60 | const svfloat32_t vinvscale = svdup_n_f32(1.f / scale); |
| 61 | |
| 62 | const auto rf_0 = svcvt_s32_f32_z(pg, svmul_f32_z(pg, svget2_f32(qv, 0), vinvscale)); |
| 63 | const auto rf_1 = svcvt_s32_f32_z(pg, svmul_f32_z(pg, svget2_f32(qv, 1), vinvscale)); |
| 64 | const auto pa = svqxtnt_s32(svqxtnb_s32(rf_0), rf_1); |
| 65 | |
| 66 | return pa; |
| 67 | } |
| 68 | |
| 69 | /** Dequantize an sve vector holding 16 16-bit quantized values. |
| 70 | * |
| 71 | * @param[in] pg Predicate value. |
| 72 | * @param[in] qv Input values to be dequantized. |
| 73 | * @param[in] qi Quantization information to be used in the computation. |
| 74 | * |
| 75 | * @return Dequantized values in an sve vector |
| 76 | */ |
| 77 | inline svfloat32x4_t svdequantize_z(svbool_t pg, const svint16x2_t qv, const UniformQuantizationInfo &qi) |
| 78 | { |
Michalis Spyrou | 168d6a8 | 2022-05-03 17:15:42 +0100 | [diff] [blame] | 79 | const float scale = qi.scale; |
| 80 | const auto vscale = svdup_n_f32(scale); |
| 81 | const svfloat32x4_t vdequantized_input = svcreate4_f32( |
| 82 | svmul_f32_z(pg, svcvt_f32_s32_z(pg, svmovlb_s32(svget2_s16(qv, 0))), vscale), |
| 83 | svmul_f32_z(pg, svcvt_f32_s32_z(pg, svmovlt_s32(svget2_s16(qv, 0))), vscale), |
| 84 | svmul_f32_z(pg, svcvt_f32_s32_z(pg, svmovlb_s32(svget2_s16(qv, 1))), vscale), |
| 85 | svmul_f32_z(pg, svcvt_f32_s32_z(pg, svmovlt_s32(svget2_s16(qv, 1))), vscale)); |
Michalis Spyrou | aa51a5b | 2020-11-22 00:49:42 +0000 | [diff] [blame] | 86 | return vdequantized_input; |
| 87 | } |
| 88 | |
| 89 | /** Quantize an sve vector holding 16 floating point values. |
| 90 | * |
| 91 | * @param[in] pg Predicate value. |
| 92 | * @param[in] qv Input values to be quantized. |
| 93 | * @param[in] qi Quantization information to be used in the computation. |
| 94 | * |
| 95 | * @return An sve vector holding the quantized values |
| 96 | */ |
| 97 | inline svint16x2_t svquantize_qsymm16_z(svbool_t pg, const svfloat32x4_t qv, const UniformQuantizationInfo &qi) |
| 98 | { |
| 99 | const float scale = qi.scale; |
| 100 | ARM_COMPUTE_ERROR_ON(scale == 0.f); |
| 101 | const auto vinvscale = svdup_n_f32(1.f / scale); |
| 102 | const auto rf_0 = svcvt_s32_f32_z(pg, svmul_f32_z(pg, svget4_f32(qv, 0), vinvscale)); |
| 103 | const auto rf_1 = svcvt_s32_f32_z(pg, svmul_f32_z(pg, svget4_f32(qv, 1), vinvscale)); |
| 104 | const auto rf_2 = svcvt_s32_f32_z(pg, svmul_f32_z(pg, svget4_f32(qv, 2), vinvscale)); |
| 105 | const auto rf_3 = svcvt_s32_f32_z(pg, svmul_f32_z(pg, svget4_f32(qv, 3), vinvscale)); |
| 106 | |
| 107 | const auto pa = svqxtnt_s32(svqxtnb_s32(rf_0), rf_1); |
| 108 | const auto pb = svqxtnt_s32(svqxtnb_s32(rf_2), rf_3); |
| 109 | |
| 110 | return svcreate2_s16(pa, pb); |
| 111 | } |
| 112 | |
| 113 | } // namespace arm_compute |
Michalis Spyrou | 20fca52 | 2021-06-07 14:23:57 +0100 | [diff] [blame] | 114 | #endif /* defined(ARM_COMPUTE_ENABLE_SVE2) */ |
Michalis Spyrou | aa51a5b | 2020-11-22 00:49:42 +0000 | [diff] [blame] | 115 | #endif // ARM_COMPUTE_NESYMM_H |