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Changes imported from Abseil "staging" branch:

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- f59c2332341d6b1a3e045d61eb0065f7a226f807 Avoid preprocessing  '__CUDACC_VER__ >= 70000' on CUDA 9,... by Abseil Team <absl-team@google.com>
  - 12dd22cf967603e9a12d58abfe877989d61844e3 Internal change. by Greg Falcon <gfalcon@google.com>

GitOrigin-RevId: f59c2332341d6b1a3e045d61eb0065f7a226f807
Change-Id: If4f5274e6d638a2ac86f1377e6ac0481dc584f19
This commit is contained in:
Abseil Team 2017-12-15 11:12:12 -08:00 • committed by Ashley Hedberg
parent 6280bddf55
commit 4972c72c5c
13 changed files with 70 additions and 21 deletions
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24
absl/base/config.h
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@ -181,21 +181,21 @@
// __SIZEOF_INT128__ but not all versions actually support __int128.
#ifdef ABSL_HAVE_INTRINSIC_INT128
#error ABSL_HAVE_INTRINSIC_INT128 cannot be directly set
#elif (defined(__clang__) && defined(__SIZEOF_INT128__) && \
!defined(__aarch64__)) || \
(defined(__CUDACC__) && defined(__SIZEOF_INT128__) && \
__CUDACC_VER_MAJOR__ >= 9) || \
(!defined(__clang__) && !defined(__CUDACC__) && defined(__GNUC__) && \
defined(__SIZEOF_INT128__))
#elif defined(__SIZEOF_INT128__)
#if (defined(__clang__) && !defined(__aarch64__)) || \
(defined(__CUDACC__) && __CUDACC_VER_MAJOR__ >= 9) || \
(!defined(__clang__) && !defined(__CUDACC__) && defined(__GNUC__))
#define ABSL_HAVE_INTRINSIC_INT128 1
#elif defined(__CUDACC__)
// __CUDACC_VER__ is a full version number before CUDA 9, and is defined to a
// std::string explaining that it has been removed starting with CUDA 9. We can't
// compare both variants in a single boolean expression because there is no
// short-circuiting in the preprocessor.
#elif defined(__CUDACC__) && defined(__SIZEOF_INT128__) && \
__CUDACC_VER__ >= 7000
// std::string explaining that it has been removed starting with CUDA 9. We use
// nested #ifs because there is no short-circuiting in the preprocessor.
// NOTE: `__CUDACC__` could be undefined while `__CUDACC_VER__` is defined.
#if __CUDACC_VER__ >= 70000
#define ABSL_HAVE_INTRINSIC_INT128 1
#endif
#endif // __CUDACC_VER__ >= 70000
#endif // defined(__CUDACC__)
#endif // ABSL_HAVE_INTRINSIC_INT128
// ABSL_HAVE_EXCEPTIONS
//