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#pragma once
#include <c10/macros/Macros.h>
#include <c10/util/bit_cast.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__) || defined(__HIP_DEVICE_COMPILE__)
return __uint_as_float((unsigned int)w);
#elif defined(__INTEL_COMPILER)
return _castu32_f32(w);
#else
return c10::bit_cast<float>(w);
#endif
}
C10_HOST_DEVICE inline uint32_t fp32_to_bits(float f) {
#if defined(__OPENCL_VERSION__)
return as_uint(f);
#elif defined(__CUDA_ARCH__) || defined(__HIP_DEVICE_COMPILE__)
return (uint32_t)__float_as_uint(f);
#elif defined(__INTEL_COMPILER)
return _castf32_u32(f);
#else
return c10::bit_cast<uint32_t>(f);
#endif
}
} // namespace c10::detail
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