forked from OSchip/llvm-project
[CUDA][Windows] Last fix for the clang Bug 38811 "Clang fails to compile with CUDA-9.x on Windows" (https://bugs.llvm.org/show_bug.cgi?id=38811).
[IMPORTANT] With that last fix, CUDA has just started being compiling by clang on Windows after nearly a year and two clang’s major releases (7 and 8). As long as the last LLVM release, in which clang was compiling CUDA on Windows successfully, was 6.0.1, this fix and two previous have to be included into upcoming 7.1.0 and 8.0.1 releases. [How to repro] clang++.exe -x cuda "c:\ProgramData\NVIDIA Corporation\CUDA Samples\v9.0\0_Simple\simplePrintf\simplePrintf.cu" -I"c:\ProgramData\NVIDIA Corporation\CUDA Samples\v9.0\common\inc" --cuda-gpu-arch=sm_50 --cuda-path="C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v9.0" -L"c:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v9.0\lib\x64" -lcudart.lib -v [Output] In file included from C:\GIT\LLVM\trunk-for-submits\llvm-64-release-vs2017-15.9.9\dist\lib\clang\9.0.0\include\__clang_cuda_runtime_wrapper.h:327: C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v9.0/include\crt/math_functions.hpp:390:11: error: no matching function for call to '__isinfl' return (__isinfl(a) != 0); ^~~~~~~~ C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v9.0/include\crt/math_functions.hpp:2662:14: note: candidate function not viable: call to __host__ function from __device__ function __func__(int __isinfl(long double a)) ^ In file included from <built-in>:1: In file included from C:\GIT\LLVM\trunk-for-submits\llvm-64-release-vs2017-15.9.9\dist\lib\clang\9.0.0\include\__clang_cuda_runtime_wrapper.h:327: C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v9.0/include\crt/math_functions.hpp:438:11: error: no matching function for call to '__isnanl' return (__isnanl(a) != 0); ^~~~~~~~ C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v9.0/include\crt/math_functions.hpp:2672:14: note: candidate function not viable: call to __host__ function from __device__ function __func__(int __isnanl(long double a)) ^ In file included from <built-in>:1: In file included from C:\GIT\LLVM\trunk-for-submits\llvm-64-release-vs2017-15.9.9\dist\lib\clang\9.0.0\include\__clang_cuda_runtime_wrapper.h:327: C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v9.0/include\crt/math_functions.hpp:486:11: error: no matching function for call to '__finitel' return (__finitel(a) != 0); ^~~~~~~~~ C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v9.0/include\crt/math_functions.hpp:2652:14: note: candidate function not viable: call to __host__ function from __device__ function __func__(int __finitel(long double a)) ^ 3 errors generated when compiling for sm_50. [Solution] Add missing long double device functions' declarations. Provide only declarations to prevent any use of long double on the device side, because CUDA does not support long double on the device side. [Testing] {Windows 10, Ubuntu 16.04.5}/{Visual C++ 2017 15.9.9, gcc+ 5.4.0}/CUDA {8.0, 9.0, 9.1, 9.2, 10.0, 10.1} Reviewed by: Artem Belevich Differential Revision: http://reviews.llvm.org/D60220 llvm-svn: 357779
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@ -78,13 +78,16 @@ __DEVICE__ float frexp(float __arg, int *__exp) {
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#ifndef _MSC_VER
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__DEVICE__ bool isinf(float __x) { return ::__isinff(__x); }
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__DEVICE__ bool isinf(double __x) { return ::__isinf(__x); }
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__DEVICE__ bool isinf(long double __x) { return ::__isinfl(__x); }
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__DEVICE__ bool isfinite(float __x) { return ::__finitef(__x); }
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// For inscrutable reasons, __finite(), the double-precision version of
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// __finitef, does not exist when compiling for MacOS. __isfinited is available
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// everywhere and is just as good.
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__DEVICE__ bool isfinite(double __x) { return ::__isfinited(__x); }
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__DEVICE__ bool isfinite(long double __x) { return ::__finitel(__x); }
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__DEVICE__ bool isnan(float __x) { return ::__isnanf(__x); }
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__DEVICE__ bool isnan(double __x) { return ::__isnan(__x); }
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__DEVICE__ bool isnan(long double __x) { return ::__isnanl(__x); }
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#endif
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__DEVICE__ bool isgreater(float __x, float __y) {
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@ -237,6 +237,7 @@ __DEVICE__ int __ffs(int __a) { return __nv_ffs(__a); }
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__DEVICE__ int __ffsll(long long __a) { return __nv_ffsll(__a); }
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__DEVICE__ int __finite(double __a) { return __nv_isfinited(__a); }
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__DEVICE__ int __finitef(float __a) { return __nv_finitef(__a); }
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__DEVICE__ int __finitel(long double __a);
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__DEVICE__ int __float2int_rd(float __a) { return __nv_float2int_rd(__a); }
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__DEVICE__ int __float2int_rn(float __a) { return __nv_float2int_rn(__a); }
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__DEVICE__ int __float2int_ru(float __a) { return __nv_float2int_ru(__a); }
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@ -445,8 +446,10 @@ __DEVICE__ float __int_as_float(int __a) { return __nv_int_as_float(__a); }
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__DEVICE__ int __isfinited(double __a) { return __nv_isfinited(__a); }
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__DEVICE__ int __isinf(double __a) { return __nv_isinfd(__a); }
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__DEVICE__ int __isinff(float __a) { return __nv_isinff(__a); }
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__DEVICE__ int __isinfl(long double __a);
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__DEVICE__ int __isnan(double __a) { return __nv_isnand(__a); }
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__DEVICE__ int __isnanf(float __a) { return __nv_isnanf(__a); }
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__DEVICE__ int __isnanl(long double __a);
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__DEVICE__ double __ll2double_rd(long long __a) {
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return __nv_ll2double_rd(__a);
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}
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@ -98,12 +98,14 @@ __DEVICE__ double hypot(double, double);
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__DEVICE__ float hypot(float, float);
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__DEVICE__ int ilogb(double);
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__DEVICE__ int ilogb(float);
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__DEVICE__ bool isfinite(long double);
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__DEVICE__ bool isfinite(double);
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__DEVICE__ bool isfinite(float);
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__DEVICE__ bool isgreater(double, double);
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__DEVICE__ bool isgreaterequal(double, double);
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__DEVICE__ bool isgreaterequal(float, float);
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__DEVICE__ bool isgreater(float, float);
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__DEVICE__ bool isinf(long double);
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__DEVICE__ bool isinf(double);
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__DEVICE__ bool isinf(float);
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__DEVICE__ bool isless(double, double);
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@ -112,6 +114,7 @@ __DEVICE__ bool islessequal(float, float);
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__DEVICE__ bool isless(float, float);
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__DEVICE__ bool islessgreater(double, double);
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__DEVICE__ bool islessgreater(float, float);
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__DEVICE__ bool isnan(long double);
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__DEVICE__ bool isnan(double);
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__DEVICE__ bool isnan(float);
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__DEVICE__ bool isnormal(double);
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