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-rw-r--r--compat/cuda/cuda_runtime.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/compat/cuda/cuda_runtime.h b/compat/cuda/cuda_runtime.h
index 082e4a8ba3..699c4b6c75 100644
--- a/compat/cuda/cuda_runtime.h
+++ b/compat/cuda/cuda_runtime.h
@@ -182,11 +182,11 @@ static inline __device__ float fabsf(float a) { return __builtin_fabsf(a); }
static inline __device__ float fabs(float a) { return __builtin_fabsf(a); }
static inline __device__ double fabs(double a) { return __builtin_fabs(a); }
static inline __device__ float sqrtf(float a) { return __builtin_sqrtf(a); }
-static inline __device__ float powf(float a, float y) { return __builtin_powf(a,y); }
static inline __device__ float __saturatef(float a) { return __nvvm_saturate_f(a); }
static inline __device__ float __sinf(float a) { return __nvvm_sin_approx_f(a); }
static inline __device__ float __cosf(float a) { return __nvvm_cos_approx_f(a); }
static inline __device__ float __expf(float a) { return __nvvm_ex2_approx_f(a * (float)__builtin_log2(__builtin_exp(1))); }
+static inline __device__ float __powf(float a, float b) { return __nvvm_ex2_approx_f(__nvvm_lg2_approx_f(a) * b); }
#endif /* COMPAT_CUDA_CUDA_RUNTIME_H */