diff options
Diffstat (limited to 'clang/lib/Frontend/InitPreprocessor.cpp')
| -rw-r--r-- | clang/lib/Frontend/InitPreprocessor.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/clang/lib/Frontend/InitPreprocessor.cpp b/clang/lib/Frontend/InitPreprocessor.cpp index f4241a94ae0..896277aa545 100644 --- a/clang/lib/Frontend/InitPreprocessor.cpp +++ b/clang/lib/Frontend/InitPreprocessor.cpp @@ -710,6 +710,10 @@ static void InitializePredefinedMacros(const TargetInfo &TI, Builder.defineMacro("__POINTER_WIDTH__", Twine((int)TI.getPointerWidth(0))); + // Define __BIGGEST_ALIGNMENT__ to be compatible with gcc. + Builder.defineMacro("__BIGGEST_ALIGNMENT__", + Twine(TI.getSuitableAlign() / TI.getCharWidth()) ); + if (!LangOpts.CharIsSigned) Builder.defineMacro("__CHAR_UNSIGNED__"); |
