tree 3346918ff516da8a5a1c0897199df6369cabcc83
parent dffeef43a64695d481e341692f38dd88884016a2
author Alexander Kornienko <alexfh@google.com> 1555540536 +0000
committer Alexander Kornienko <alexfh@google.com> 1555540536 +0000

[clang-tidy] Don't issue cppcoreguidelines-macro-usage on builtin macros

Before the patch calling clang-tidy with -header-filter=.* -system-headers would
result in a few hundred useless warnings:
  warning: macro '_GNU_SOURCE' used to declare a constant; consider using a 'constexpr' constant [cppcoreguidelines-macro-usage]
  warning: macro '_LP64' used to declare a constant; consider using a 'constexpr' constant [cppcoreguidelines-macro-usage]
  warning: macro '__ATOMIC_ACQUIRE' used to declare a constant; consider using a 'constexpr' constant [cppcoreguidelines-macro-usage]
  warning: macro '__ATOMIC_ACQ_REL' used to declare a constant; consider using a 'constexpr' constant [cppcoreguidelines-macro-usage]
  warning: macro '__ATOMIC_CONSUME' used to declare a constant; consider using a 'constexpr' constant [cppcoreguidelines-macro-usage]
  warning: macro '__ATOMIC_RELAXED' used to declare a constant; consider using a 'constexpr' constant [cppcoreguidelines-macro-usage]
  warning: macro '__ATOMIC_RELEASE' used to declare a constant; consider using a 'constexpr' constant [cppcoreguidelines-macro-usage]
  warning: macro '__ATOMIC_SEQ_CST' used to declare a constant; consider using a 'constexpr' constant [cppcoreguidelines-macro-usage]
  warning: macro '__BIGGEST_ALIGNMENT__' used to declare a constant; consider using a 'constexpr' constant [cppcoreguidelines-macro-usage]
  ... and so on

git-svn-id: https://llvm.org/svn/llvm-project/clang-tools-extra/trunk@358621 91177308-0d34-0410-b5e6-96231b3b80d8