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fix compilation for nvcc+clang

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nvcc seems to use the host compiler for preprocessing the source for the device and host compilation.
When compiling the host code with the host compiler (clang), `__builtin_assume` is detected correctly and is also available during compilation.
When compiling the device code with nvcc, this builtin function is not available.
This commit is contained in:
Benjamin Worpitz
2017-08-28 08:12:48 +02:00
committed by GitHub
parent 087471a232
commit 966786e7f9
1 changed files with 2 additions and 0 deletions
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2
include/boost/smart_ptr/detail/local_counted_base.hpp
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@ -60,12 +60,14 @@ public:
void add_ref() BOOST_SP_NOEXCEPT
{
#if !defined(__NVCC__)
#if defined( __has_builtin )
# if __has_builtin( __builtin_assume )
__builtin_assume( local_use_count_ >= 1 );
# endif
#endif
#endif
local_use_count_ = static_cast<count_type>( local_use_count_ + 1 );