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fix cuda half math function is undefined: hpow, htanh #6225

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Aug 10, 2020
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fix cuda half math function is undefined: hpow, htanh #6225

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13 changes: 13 additions & 0 deletions src/target/source/literal/cuda_half_t.h
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Original file line number Diff line number Diff line change
Expand Up @@ -293,6 +293,19 @@ __pack_half2(const half x, const half y) {
unsigned v1 = *((unsigned short *)&y);
return (v1 << 16) | v0;
}

static inline __device__ __host__ half hpow(half x, half y) {
float tmp_x = __half2float(x);
float tmp_y = __half2float(y);
float result = powf(tmp_x, tmp_y);
return __float2half(result);
}

static inline __device__ __host__ half htanh(half x) {
float tmp_x = __half2float(x);
float result = tanhf(tmp_x);
return __float2half(result);
}
)";

static constexpr const char* _cuda_warp_intrinsic_util = R"(
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