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Diffstat (limited to 'src/core/NEON/wrapper/intrinsics/cvt.h')
| -rw-r--r-- | src/core/NEON/wrapper/intrinsics/cvt.h | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/src/core/NEON/wrapper/intrinsics/cvt.h b/src/core/NEON/wrapper/intrinsics/cvt.h new file mode 100644 index 0000000000..381de2284a --- /dev/null +++ b/src/core/NEON/wrapper/intrinsics/cvt.h @@ -0,0 +1,107 @@ +/* + * Copyright (c) 2020, 2022-2023 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. + */ +#ifndef ARM_COMPUTE_WRAPPER_CVT_H +#define ARM_COMPUTE_WRAPPER_CVT_H + +#include <arm_neon.h> + +namespace arm_compute +{ +namespace wrapper +{ +#define VCVT_TO_F32_IMPL(ptype, vtype, prefix, postfix1, postfix2) \ + template <typename T> \ + inline typename std::enable_if<std::is_same<T, float>::value, float32x4_t>::type vcvt(const vtype &a) \ + { \ + return prefix##_##postfix1##_##postfix2(a); \ + } + +VCVT_TO_F32_IMPL(float32x4_t, uint32x4_t, vcvtq, f32, u32) +VCVT_TO_F32_IMPL(float32x4_t, int32x4_t, vcvtq, f32, s32) +#ifdef __ARM_FEATURE_FP16_VECTOR_ARITHMETIC +VCVT_TO_F32_IMPL(float32x4_t, float16x4_t, vcvt, f32, f16) +#endif // __ARM_FEATURE_FP16_VECTOR_ARITHMETIC +#undef VCVT_TO_F32_IMPL + +#ifdef __ARM_FEATURE_FP16_VECTOR_ARITHMETIC +#define VCVT_TO_F16_IMPL(ptype, vtype, prefix, postfix1, postfix2) \ + template <typename T> \ + inline typename std::enable_if<std::is_same<T, float16_t>::value, float16x4_t>::type vcvt(const vtype &a) \ + { \ + return prefix##_##postfix1##_##postfix2(a); \ + } + +VCVT_TO_F16_IMPL(float16x4_t, float32x4_t, vcvt, f16, f32) +#undef VCVT_TO_F16_IMPL +#endif // __ARM_FEATURE_FP16_VECTOR_ARITHMETIC + +template <typename T> +inline typename std::enable_if<std::is_same<T, uint8_t>::value || std::is_same<T, uint32_t>::value, uint32x4_t>::type +vcvt(const float32x4_t &a) +{ + return vcvtq_u32_f32(a); +} + +template <typename T> +inline typename std::enable_if<std::is_same<T, int8_t>::value || std::is_same<T, int32_t>::value, int32x4_t>::type +vcvt(const float32x4_t &a) +{ + return vcvtq_s32_f32(a); +} + +#ifdef __aarch64__ +template <typename T> +inline typename std::enable_if<std::is_same<T, uint32_t>::value, uint32x4_t>::type vcvta(const float32x4_t &a) +{ + return vcvtaq_u32_f32(a); +} + +template <typename T> +inline typename std::enable_if<std::is_same<T, int32_t>::value, int32x4_t>::type vcvta(const float32x4_t &a) +{ + return vcvtaq_s32_f32(a); +} +#endif //__aarch64__ + +#if defined(ARM_COMPUTE_ENABLE_BF16) +/** Convert 2x128-bit floating point vectors into 1x128-bit bfloat16 vector + * + * @param[in] inptr Pointer to the input memory to load values from + * @param[in,out] outptr Pointer to the output memory to store values to + */ +inline void vcvt_bf16_f32(const float *inptr, uint16_t *outptr) +{ + __asm __volatile("ldp q0, q1, [%[inptr]]\n" + ".inst 0xea16800\n" // BFCVTN v0, v0 + ".inst 0x4ea16820\n" // BFCVTN2 v0, v1 + "str q0, [%[outptr]]\n" + : [inptr] "+r"(inptr) + : [outptr] "r"(outptr) + : "v0", "v1", "memory"); +} +#endif /* defined(ARM_COMPUTE_ENABLE_BF16) */ + +} // namespace wrapper +} // namespace arm_compute +#endif /* ARM_COMPUTE_WRAPPER_CVT_H */ |