diff options
Diffstat (limited to 'lib/Frontend/InitPreprocessor.cpp')
| -rw-r--r-- | lib/Frontend/InitPreprocessor.cpp | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/lib/Frontend/InitPreprocessor.cpp b/lib/Frontend/InitPreprocessor.cpp index 88be7732f519..0dd04e8a8fff 100644 --- a/lib/Frontend/InitPreprocessor.cpp +++ b/lib/Frontend/InitPreprocessor.cpp @@ -882,14 +882,16 @@ static void InitializePredefinedMacros(const TargetInfo &TI, // The value written by __atomic_test_and_set. // FIXME: This is target-dependent. Builder.defineMacro("__GCC_ATOMIC_TEST_AND_SET_TRUEVAL", "1"); + } + auto addLockFreeMacros = [&](const llvm::Twine &Prefix) { // Used by libc++ and libstdc++ to implement ATOMIC_<foo>_LOCK_FREE. unsigned InlineWidthBits = TI.getMaxAtomicInlineWidth(); -#define DEFINE_LOCK_FREE_MACRO(TYPE, Type) \ - Builder.defineMacro("__GCC_ATOMIC_" #TYPE "_LOCK_FREE", \ - getLockFreeValue(TI.get##Type##Width(), \ - TI.get##Type##Align(), \ - InlineWidthBits)); +#define DEFINE_LOCK_FREE_MACRO(TYPE, Type) \ + Builder.defineMacro(Prefix + #TYPE "_LOCK_FREE", \ + getLockFreeValue(TI.get##Type##Width(), \ + TI.get##Type##Align(), \ + InlineWidthBits)); DEFINE_LOCK_FREE_MACRO(BOOL, Bool); DEFINE_LOCK_FREE_MACRO(CHAR, Char); DEFINE_LOCK_FREE_MACRO(CHAR16_T, Char16); @@ -899,12 +901,15 @@ static void InitializePredefinedMacros(const TargetInfo &TI, DEFINE_LOCK_FREE_MACRO(INT, Int); DEFINE_LOCK_FREE_MACRO(LONG, Long); DEFINE_LOCK_FREE_MACRO(LLONG, LongLong); - Builder.defineMacro("__GCC_ATOMIC_POINTER_LOCK_FREE", + Builder.defineMacro(Prefix + "POINTER_LOCK_FREE", getLockFreeValue(TI.getPointerWidth(0), TI.getPointerAlign(0), InlineWidthBits)); #undef DEFINE_LOCK_FREE_MACRO - } + }; + addLockFreeMacros("__CLANG_ATOMIC_"); + if (!LangOpts.MSVCCompat) + addLockFreeMacros("__GCC_ATOMIC_"); if (LangOpts.NoInlineDefine) Builder.defineMacro("__NO_INLINE__"); |