349 lines
16 KiB
C
349 lines
16 KiB
C
/*===---- __clang_cuda_math.h - Device-side CUDA math support --------------===
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*
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* Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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* See https://llvm.org/LICENSE.txt for license information.
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* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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*
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*===-----------------------------------------------------------------------===
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*/
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#ifndef __CLANG_CUDA_MATH_H__
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#define __CLANG_CUDA_MATH_H__
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#ifndef __CUDA__
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#error "This file is for CUDA compilation only."
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#endif
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#ifndef __OPENMP_NVPTX__
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#if CUDA_VERSION < 9000
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#error This file is intended to be used with CUDA-9+ only.
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#endif
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#endif
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// __DEVICE__ is a helper macro with common set of attributes for the wrappers
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// we implement in this file. We need static in order to avoid emitting unused
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// functions and __forceinline__ helps inlining these wrappers at -O1.
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#pragma push_macro("__DEVICE__")
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#ifdef __OPENMP_NVPTX__
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#if defined(__cplusplus)
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#define __DEVICE__ static constexpr __attribute__((always_inline, nothrow))
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#else
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#define __DEVICE__ static __attribute__((always_inline, nothrow))
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#endif
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#else
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#define __DEVICE__ static __device__ __forceinline__
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#endif
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// Specialized version of __DEVICE__ for functions with void return type. Needed
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// because the OpenMP overlay requires constexpr functions here but prior to
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// c++14 void return functions could not be constexpr.
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#pragma push_macro("__DEVICE_VOID__")
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#ifdef __OPENMP_NVPTX__ && defined(__cplusplus) && __cplusplus < 201402L
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#define __DEVICE_VOID__ static __attribute__((always_inline, nothrow))
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#else
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#define __DEVICE_VOID__ __DEVICE__
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#endif
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// libdevice provides fast low precision and slow full-recision implementations
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// for some functions. Which one gets selected depends on
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// __CLANG_CUDA_APPROX_TRANSCENDENTALS__ which gets defined by clang if
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// -ffast-math or -fcuda-approx-transcendentals are in effect.
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#pragma push_macro("__FAST_OR_SLOW")
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#if defined(__CLANG_CUDA_APPROX_TRANSCENDENTALS__)
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#define __FAST_OR_SLOW(fast, slow) fast
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#else
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#define __FAST_OR_SLOW(fast, slow) slow
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#endif
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__DEVICE__ int abs(int __a) { return __nv_abs(__a); }
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__DEVICE__ double fabs(double __a) { return __nv_fabs(__a); }
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__DEVICE__ double acos(double __a) { return __nv_acos(__a); }
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__DEVICE__ float acosf(float __a) { return __nv_acosf(__a); }
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__DEVICE__ double acosh(double __a) { return __nv_acosh(__a); }
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__DEVICE__ float acoshf(float __a) { return __nv_acoshf(__a); }
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__DEVICE__ double asin(double __a) { return __nv_asin(__a); }
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__DEVICE__ float asinf(float __a) { return __nv_asinf(__a); }
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__DEVICE__ double asinh(double __a) { return __nv_asinh(__a); }
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__DEVICE__ float asinhf(float __a) { return __nv_asinhf(__a); }
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__DEVICE__ double atan(double __a) { return __nv_atan(__a); }
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__DEVICE__ double atan2(double __a, double __b) { return __nv_atan2(__a, __b); }
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__DEVICE__ float atan2f(float __a, float __b) { return __nv_atan2f(__a, __b); }
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__DEVICE__ float atanf(float __a) { return __nv_atanf(__a); }
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__DEVICE__ double atanh(double __a) { return __nv_atanh(__a); }
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__DEVICE__ float atanhf(float __a) { return __nv_atanhf(__a); }
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__DEVICE__ double cbrt(double __a) { return __nv_cbrt(__a); }
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__DEVICE__ float cbrtf(float __a) { return __nv_cbrtf(__a); }
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__DEVICE__ double ceil(double __a) { return __nv_ceil(__a); }
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__DEVICE__ float ceilf(float __a) { return __nv_ceilf(__a); }
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__DEVICE__ double copysign(double __a, double __b) {
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return __nv_copysign(__a, __b);
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}
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__DEVICE__ float copysignf(float __a, float __b) {
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return __nv_copysignf(__a, __b);
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}
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__DEVICE__ double cos(double __a) { return __nv_cos(__a); }
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__DEVICE__ float cosf(float __a) {
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return __FAST_OR_SLOW(__nv_fast_cosf, __nv_cosf)(__a);
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}
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__DEVICE__ double cosh(double __a) { return __nv_cosh(__a); }
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__DEVICE__ float coshf(float __a) { return __nv_coshf(__a); }
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__DEVICE__ double cospi(double __a) { return __nv_cospi(__a); }
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__DEVICE__ float cospif(float __a) { return __nv_cospif(__a); }
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__DEVICE__ double cyl_bessel_i0(double __a) { return __nv_cyl_bessel_i0(__a); }
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__DEVICE__ float cyl_bessel_i0f(float __a) { return __nv_cyl_bessel_i0f(__a); }
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__DEVICE__ double cyl_bessel_i1(double __a) { return __nv_cyl_bessel_i1(__a); }
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__DEVICE__ float cyl_bessel_i1f(float __a) { return __nv_cyl_bessel_i1f(__a); }
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__DEVICE__ double erf(double __a) { return __nv_erf(__a); }
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__DEVICE__ double erfc(double __a) { return __nv_erfc(__a); }
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__DEVICE__ float erfcf(float __a) { return __nv_erfcf(__a); }
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__DEVICE__ double erfcinv(double __a) { return __nv_erfcinv(__a); }
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__DEVICE__ float erfcinvf(float __a) { return __nv_erfcinvf(__a); }
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__DEVICE__ double erfcx(double __a) { return __nv_erfcx(__a); }
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__DEVICE__ float erfcxf(float __a) { return __nv_erfcxf(__a); }
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__DEVICE__ float erff(float __a) { return __nv_erff(__a); }
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__DEVICE__ double erfinv(double __a) { return __nv_erfinv(__a); }
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__DEVICE__ float erfinvf(float __a) { return __nv_erfinvf(__a); }
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__DEVICE__ double exp(double __a) { return __nv_exp(__a); }
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__DEVICE__ double exp10(double __a) { return __nv_exp10(__a); }
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__DEVICE__ float exp10f(float __a) { return __nv_exp10f(__a); }
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__DEVICE__ double exp2(double __a) { return __nv_exp2(__a); }
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__DEVICE__ float exp2f(float __a) { return __nv_exp2f(__a); }
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__DEVICE__ float expf(float __a) { return __nv_expf(__a); }
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__DEVICE__ double expm1(double __a) { return __nv_expm1(__a); }
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__DEVICE__ float expm1f(float __a) { return __nv_expm1f(__a); }
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__DEVICE__ float fabsf(float __a) { return __nv_fabsf(__a); }
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__DEVICE__ double fdim(double __a, double __b) { return __nv_fdim(__a, __b); }
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__DEVICE__ float fdimf(float __a, float __b) { return __nv_fdimf(__a, __b); }
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__DEVICE__ double fdivide(double __a, double __b) { return __a / __b; }
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__DEVICE__ float fdividef(float __a, float __b) {
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#if __FAST_MATH__ && !__CUDA_PREC_DIV
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return __nv_fast_fdividef(__a, __b);
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#else
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return __a / __b;
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#endif
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}
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__DEVICE__ double floor(double __f) { return __nv_floor(__f); }
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__DEVICE__ float floorf(float __f) { return __nv_floorf(__f); }
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__DEVICE__ double fma(double __a, double __b, double __c) {
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return __nv_fma(__a, __b, __c);
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}
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__DEVICE__ float fmaf(float __a, float __b, float __c) {
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return __nv_fmaf(__a, __b, __c);
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}
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__DEVICE__ double fmax(double __a, double __b) { return __nv_fmax(__a, __b); }
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__DEVICE__ float fmaxf(float __a, float __b) { return __nv_fmaxf(__a, __b); }
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__DEVICE__ double fmin(double __a, double __b) { return __nv_fmin(__a, __b); }
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__DEVICE__ float fminf(float __a, float __b) { return __nv_fminf(__a, __b); }
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__DEVICE__ double fmod(double __a, double __b) { return __nv_fmod(__a, __b); }
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__DEVICE__ float fmodf(float __a, float __b) { return __nv_fmodf(__a, __b); }
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__DEVICE__ double frexp(double __a, int *__b) { return __nv_frexp(__a, __b); }
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__DEVICE__ float frexpf(float __a, int *__b) { return __nv_frexpf(__a, __b); }
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__DEVICE__ double hypot(double __a, double __b) { return __nv_hypot(__a, __b); }
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__DEVICE__ float hypotf(float __a, float __b) { return __nv_hypotf(__a, __b); }
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__DEVICE__ int ilogb(double __a) { return __nv_ilogb(__a); }
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__DEVICE__ int ilogbf(float __a) { return __nv_ilogbf(__a); }
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__DEVICE__ double j0(double __a) { return __nv_j0(__a); }
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__DEVICE__ float j0f(float __a) { return __nv_j0f(__a); }
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__DEVICE__ double j1(double __a) { return __nv_j1(__a); }
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__DEVICE__ float j1f(float __a) { return __nv_j1f(__a); }
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__DEVICE__ double jn(int __n, double __a) { return __nv_jn(__n, __a); }
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__DEVICE__ float jnf(int __n, float __a) { return __nv_jnf(__n, __a); }
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#if defined(__LP64__) || defined(_WIN64)
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__DEVICE__ long labs(long __a) { return __nv_llabs(__a); };
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#else
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__DEVICE__ long labs(long __a) { return __nv_abs(__a); };
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#endif
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__DEVICE__ double ldexp(double __a, int __b) { return __nv_ldexp(__a, __b); }
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__DEVICE__ float ldexpf(float __a, int __b) { return __nv_ldexpf(__a, __b); }
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__DEVICE__ double lgamma(double __a) { return __nv_lgamma(__a); }
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__DEVICE__ float lgammaf(float __a) { return __nv_lgammaf(__a); }
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__DEVICE__ long long llabs(long long __a) { return __nv_llabs(__a); }
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__DEVICE__ long long llmax(long long __a, long long __b) {
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return __nv_llmax(__a, __b);
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}
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__DEVICE__ long long llmin(long long __a, long long __b) {
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return __nv_llmin(__a, __b);
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}
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__DEVICE__ long long llrint(double __a) { return __nv_llrint(__a); }
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__DEVICE__ long long llrintf(float __a) { return __nv_llrintf(__a); }
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__DEVICE__ long long llround(double __a) { return __nv_llround(__a); }
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__DEVICE__ long long llroundf(float __a) { return __nv_llroundf(__a); }
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__DEVICE__ double log(double __a) { return __nv_log(__a); }
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__DEVICE__ double log10(double __a) { return __nv_log10(__a); }
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__DEVICE__ float log10f(float __a) { return __nv_log10f(__a); }
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__DEVICE__ double log1p(double __a) { return __nv_log1p(__a); }
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__DEVICE__ float log1pf(float __a) { return __nv_log1pf(__a); }
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__DEVICE__ double log2(double __a) { return __nv_log2(__a); }
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__DEVICE__ float log2f(float __a) {
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return __FAST_OR_SLOW(__nv_fast_log2f, __nv_log2f)(__a);
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}
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__DEVICE__ double logb(double __a) { return __nv_logb(__a); }
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__DEVICE__ float logbf(float __a) { return __nv_logbf(__a); }
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__DEVICE__ float logf(float __a) {
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return __FAST_OR_SLOW(__nv_fast_logf, __nv_logf)(__a);
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}
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#if defined(__LP64__) || defined(_WIN64)
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__DEVICE__ long lrint(double __a) { return llrint(__a); }
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__DEVICE__ long lrintf(float __a) { return __float2ll_rn(__a); }
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__DEVICE__ long lround(double __a) { return llround(__a); }
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__DEVICE__ long lroundf(float __a) { return llroundf(__a); }
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#else
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__DEVICE__ long lrint(double __a) { return (long)rint(__a); }
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__DEVICE__ long lrintf(float __a) { return __float2int_rn(__a); }
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__DEVICE__ long lround(double __a) { return round(__a); }
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__DEVICE__ long lroundf(float __a) { return roundf(__a); }
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#endif
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__DEVICE__ int max(int __a, int __b) { return __nv_max(__a, __b); }
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__DEVICE__ int min(int __a, int __b) { return __nv_min(__a, __b); }
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__DEVICE__ double modf(double __a, double *__b) { return __nv_modf(__a, __b); }
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__DEVICE__ float modff(float __a, float *__b) { return __nv_modff(__a, __b); }
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__DEVICE__ double nearbyint(double __a) { return __builtin_nearbyint(__a); }
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__DEVICE__ float nearbyintf(float __a) { return __builtin_nearbyintf(__a); }
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__DEVICE__ double nextafter(double __a, double __b) {
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return __nv_nextafter(__a, __b);
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}
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__DEVICE__ float nextafterf(float __a, float __b) {
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return __nv_nextafterf(__a, __b);
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}
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__DEVICE__ double norm(int __dim, const double *__t) {
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return __nv_norm(__dim, __t);
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}
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__DEVICE__ double norm3d(double __a, double __b, double __c) {
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return __nv_norm3d(__a, __b, __c);
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}
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__DEVICE__ float norm3df(float __a, float __b, float __c) {
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return __nv_norm3df(__a, __b, __c);
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}
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__DEVICE__ double norm4d(double __a, double __b, double __c, double __d) {
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return __nv_norm4d(__a, __b, __c, __d);
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}
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__DEVICE__ float norm4df(float __a, float __b, float __c, float __d) {
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return __nv_norm4df(__a, __b, __c, __d);
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}
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__DEVICE__ double normcdf(double __a) { return __nv_normcdf(__a); }
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__DEVICE__ float normcdff(float __a) { return __nv_normcdff(__a); }
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__DEVICE__ double normcdfinv(double __a) { return __nv_normcdfinv(__a); }
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__DEVICE__ float normcdfinvf(float __a) { return __nv_normcdfinvf(__a); }
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__DEVICE__ float normf(int __dim, const float *__t) {
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return __nv_normf(__dim, __t);
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}
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__DEVICE__ double pow(double __a, double __b) { return __nv_pow(__a, __b); }
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__DEVICE__ float powf(float __a, float __b) { return __nv_powf(__a, __b); }
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__DEVICE__ double powi(double __a, int __b) { return __nv_powi(__a, __b); }
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__DEVICE__ float powif(float __a, int __b) { return __nv_powif(__a, __b); }
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__DEVICE__ double rcbrt(double __a) { return __nv_rcbrt(__a); }
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__DEVICE__ float rcbrtf(float __a) { return __nv_rcbrtf(__a); }
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__DEVICE__ double remainder(double __a, double __b) {
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return __nv_remainder(__a, __b);
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}
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__DEVICE__ float remainderf(float __a, float __b) {
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return __nv_remainderf(__a, __b);
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}
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__DEVICE__ double remquo(double __a, double __b, int *__c) {
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return __nv_remquo(__a, __b, __c);
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}
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__DEVICE__ float remquof(float __a, float __b, int *__c) {
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return __nv_remquof(__a, __b, __c);
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}
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__DEVICE__ double rhypot(double __a, double __b) {
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return __nv_rhypot(__a, __b);
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}
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__DEVICE__ float rhypotf(float __a, float __b) {
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return __nv_rhypotf(__a, __b);
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}
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// __nv_rint* in libdevice is buggy and produces incorrect results.
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__DEVICE__ double rint(double __a) { return __builtin_rint(__a); }
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__DEVICE__ float rintf(float __a) { return __builtin_rintf(__a); }
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__DEVICE__ double rnorm(int __a, const double *__b) {
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return __nv_rnorm(__a, __b);
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}
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__DEVICE__ double rnorm3d(double __a, double __b, double __c) {
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return __nv_rnorm3d(__a, __b, __c);
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}
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__DEVICE__ float rnorm3df(float __a, float __b, float __c) {
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return __nv_rnorm3df(__a, __b, __c);
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}
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__DEVICE__ double rnorm4d(double __a, double __b, double __c, double __d) {
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return __nv_rnorm4d(__a, __b, __c, __d);
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}
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__DEVICE__ float rnorm4df(float __a, float __b, float __c, float __d) {
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return __nv_rnorm4df(__a, __b, __c, __d);
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}
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__DEVICE__ float rnormf(int __dim, const float *__t) {
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return __nv_rnormf(__dim, __t);
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}
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__DEVICE__ double round(double __a) { return __nv_round(__a); }
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__DEVICE__ float roundf(float __a) { return __nv_roundf(__a); }
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__DEVICE__ double rsqrt(double __a) { return __nv_rsqrt(__a); }
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__DEVICE__ float rsqrtf(float __a) { return __nv_rsqrtf(__a); }
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__DEVICE__ double scalbn(double __a, int __b) { return __nv_scalbn(__a, __b); }
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__DEVICE__ float scalbnf(float __a, int __b) { return __nv_scalbnf(__a, __b); }
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__DEVICE__ double scalbln(double __a, long __b) {
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if (__b > INT_MAX)
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return __a > 0 ? HUGE_VAL : -HUGE_VAL;
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if (__b < INT_MIN)
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return __a > 0 ? 0.0 : -0.0;
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return scalbn(__a, (int)__b);
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}
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__DEVICE__ float scalblnf(float __a, long __b) {
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if (__b > INT_MAX)
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return __a > 0 ? HUGE_VALF : -HUGE_VALF;
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if (__b < INT_MIN)
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return __a > 0 ? 0.f : -0.f;
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return scalbnf(__a, (int)__b);
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}
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__DEVICE__ double sin(double __a) { return __nv_sin(__a); }
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__DEVICE_VOID__ void sincos(double __a, double *__s, double *__c) {
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return __nv_sincos(__a, __s, __c);
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}
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__DEVICE_VOID__ void sincosf(float __a, float *__s, float *__c) {
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return __FAST_OR_SLOW(__nv_fast_sincosf, __nv_sincosf)(__a, __s, __c);
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}
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__DEVICE_VOID__ void sincospi(double __a, double *__s, double *__c) {
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return __nv_sincospi(__a, __s, __c);
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}
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__DEVICE_VOID__ void sincospif(float __a, float *__s, float *__c) {
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return __nv_sincospif(__a, __s, __c);
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}
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__DEVICE__ float sinf(float __a) {
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return __FAST_OR_SLOW(__nv_fast_sinf, __nv_sinf)(__a);
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}
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__DEVICE__ double sinh(double __a) { return __nv_sinh(__a); }
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__DEVICE__ float sinhf(float __a) { return __nv_sinhf(__a); }
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__DEVICE__ double sinpi(double __a) { return __nv_sinpi(__a); }
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__DEVICE__ float sinpif(float __a) { return __nv_sinpif(__a); }
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__DEVICE__ double sqrt(double __a) { return __nv_sqrt(__a); }
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__DEVICE__ float sqrtf(float __a) { return __nv_sqrtf(__a); }
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__DEVICE__ double tan(double __a) { return __nv_tan(__a); }
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__DEVICE__ float tanf(float __a) { return __nv_tanf(__a); }
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__DEVICE__ double tanh(double __a) { return __nv_tanh(__a); }
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__DEVICE__ float tanhf(float __a) { return __nv_tanhf(__a); }
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__DEVICE__ double tgamma(double __a) { return __nv_tgamma(__a); }
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__DEVICE__ float tgammaf(float __a) { return __nv_tgammaf(__a); }
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__DEVICE__ double trunc(double __a) { return __nv_trunc(__a); }
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__DEVICE__ float truncf(float __a) { return __nv_truncf(__a); }
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__DEVICE__ unsigned long long ullmax(unsigned long long __a,
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unsigned long long __b) {
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return __nv_ullmax(__a, __b);
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}
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__DEVICE__ unsigned long long ullmin(unsigned long long __a,
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unsigned long long __b) {
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return __nv_ullmin(__a, __b);
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|
}
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|
__DEVICE__ unsigned int umax(unsigned int __a, unsigned int __b) {
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|
return __nv_umax(__a, __b);
|
|
}
|
|
__DEVICE__ unsigned int umin(unsigned int __a, unsigned int __b) {
|
|
return __nv_umin(__a, __b);
|
|
}
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|
__DEVICE__ double y0(double __a) { return __nv_y0(__a); }
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|
__DEVICE__ float y0f(float __a) { return __nv_y0f(__a); }
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|
__DEVICE__ double y1(double __a) { return __nv_y1(__a); }
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|
__DEVICE__ float y1f(float __a) { return __nv_y1f(__a); }
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|
__DEVICE__ double yn(int __a, double __b) { return __nv_yn(__a, __b); }
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|
__DEVICE__ float ynf(int __a, float __b) { return __nv_ynf(__a, __b); }
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|
|
|
#pragma pop_macro("__DEVICE__")
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|
#pragma pop_macro("__DEVICE_VOID__")
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|
#pragma pop_macro("__FAST_OR_SLOW")
|
|
|
|
#endif // __CLANG_CUDA_DEVICE_FUNCTIONS_H__
|