Date: Sun, 10 Nov 2019 17:34:11 +0000 From: bugzilla-noreply@freebsd.org To: toolchain@FreeBSD.org Subject: [Bug 241550] Base Clang can't compile trivial CUDA programs: error: no matching function for call to '__isnan' Message-ID: <bug-241550-29464-IQ9H9zImtR@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-241550-29464@https.bugs.freebsd.org/bugzilla/> References: <bug-241550-29464@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D241550 --- Comment #9 from commit-hook@freebsd.org --- A commit references this bug: Author: dim Date: Sun Nov 10 17:33:12 UTC 2019 New revision: 354596 URL: https://svnweb.freebsd.org/changeset/base/354596 Log: MFC r354255: Add __isnan()/__isnanf() aliases for compatibility with glibc and CUDA Even though clang comes with a number of internal CUDA wrapper headers, compiling sample CUDA programs will result in errors similar to: In file included from <built-in>:1: In file included from /usr/lib/clang/9.0.0/include/__clang_cuda_runtime_wrapper.h:204: =20 /usr/home/arr/cuda/var/cuda-repo-10-0-local-10.0.130-410.48/usr/local/cuda-= 10.0//include/crt/math_functions.hpp:2910:7: error: no matching function for call to '__isnan' if (__isnan(a)) { ^~~~~~~ /usr/lib/clang/9.0.0/include/__clang_cuda_device_functions.h:460:16: note: candidate function not viable: call to __device__ function from __host__ function __DEVICE__ int __isnan(double __a) { return __nv_isnand(__a); } ^ CUDA expects __isnan() and __isnanf() declarations to be available, which are glibc specific extensions, equivalent to the regular isnan() and isnanf(). To provide these, define __isnan() and __isnanf() as aliases of the already existing static inline functions __inline_isnan() and __inline_isnanf() from math.h. Reported by: arrowd PR: 241550 Changes: _U stable/10/ stable/10/lib/libc/gen/isnan.c stable/10/lib/msun/src/math.h stable/10/lib/msun/src/s_isnan.c _U stable/11/ stable/11/lib/libc/gen/isnan.c stable/11/lib/msun/src/math.h stable/11/lib/msun/src/s_isnan.c _U stable/12/ stable/12/lib/libc/gen/isnan.c stable/12/lib/msun/src/math.h stable/12/lib/msun/src/s_isnan.c --=20 You are receiving this mail because: You are on the CC list for the bug.=
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