| #pragma once |
| |
| #include <c10/macros/Macros.h> |
| #include <cstdint> |
| |
| namespace c10::detail { |
| |
| C10_HOST_DEVICE inline float fp32_from_bits(uint32_t w) { |
| #if defined(__OPENCL_VERSION__) |
| return as_float(w); |
| #elif defined(__CUDA_ARCH__) |
| return __uint_as_float((unsigned int)w); |
| #elif defined(__INTEL_COMPILER) |
| return _castu32_f32(w); |
| #else |
| union { |
| uint32_t as_bits; |
| float as_value; |
| } fp32 = {w}; |
| return fp32.as_value; |
| #endif |
| } |
| |
| C10_HOST_DEVICE inline uint32_t fp32_to_bits(float f) { |
| #if defined(__OPENCL_VERSION__) |
| return as_uint(f); |
| #elif defined(__CUDA_ARCH__) |
| return (uint32_t)__float_as_uint(f); |
| #elif defined(__INTEL_COMPILER) |
| return _castf32_u32(f); |
| #else |
| union { |
| float as_value; |
| uint32_t as_bits; |
| } fp32 = {f}; |
| return fp32.as_bits; |
| #endif |
| } |
| |
| } // namespace c10::detail |
