Rakesh Roy
8fc1292bc2
Change-Id: I2944a63ddc2eec8dc1403d9790ffffbaec343385
[ROCm/hip-tests commit: 57bc68acb1]
55 строки
2.0 KiB
C++
55 строки
2.0 KiB
C++
/*
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Copyright (c) 2023 Advanced Micro Devices, Inc. All rights reserved.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#pragma once
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#include <hip/hip_fp16.h>
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#define FLOAT16_MAX 65504.0f
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class Float16 {
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public:
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__host__ __device__ Float16() = default;
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__host__ __device__ Float16(__half x) : x_{x} {}
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__host__ __device__ Float16(__half2 x) : x_{__low2half(x)} {}
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__host__ __device__ Float16(float x) : x_{__float2half(x)} {}
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// __heq doesn't have a __host__ version
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__host__ __device__ bool operator==(Float16 other) const { return (static_cast<__half_raw>(x_).x == static_cast<__half_raw>(other.x_).x); }
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__host__ __device__ bool operator!=(Float16 other) const { return !(*this == other); }
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__host__ __device__ operator __half() const { return x_; }
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__host__ __device__ operator __half2() const { return __half2half2(x_); }
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__host__ __device__ operator float() const { return __half2float(x_); }
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private:
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__half x_;
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};
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namespace {
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inline std::ostream& operator<<(std::ostream& o, Float16 x) {
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o << static_cast<float>(x);
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return o;
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}
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} // namespace
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