diff options
Diffstat (limited to 'lib/Support/ConvertUTF.cpp')
| -rw-r--r-- | lib/Support/ConvertUTF.cpp | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/lib/Support/ConvertUTF.cpp b/lib/Support/ConvertUTF.cpp index 39fd218d3f071..aa9507c189eda 100644 --- a/lib/Support/ConvertUTF.cpp +++ b/lib/Support/ConvertUTF.cpp @@ -53,6 +53,35 @@ #endif #include <assert.h> + +/* + * This code extensively uses fall-through switches. + * Keep the compiler from warning about that. + */ +#if defined(__clang__) && defined(__has_warning) +# if __has_warning("-Wimplicit-fallthrough") +# define ConvertUTF_DISABLE_WARNINGS \ + _Pragma("clang diagnostic push") \ + _Pragma("clang diagnostic ignored \"-Wimplicit-fallthrough\"") +# define ConvertUTF_RESTORE_WARNINGS \ + _Pragma("clang diagnostic pop") +# endif +#elif defined(__GNUC__) && __GNUC__ > 6 +# define ConvertUTF_DISABLE_WARNINGS \ + _Pragma("GCC diagnostic push") \ + _Pragma("GCC diagnostic ignored \"-Wimplicit-fallthrough\"") +# define ConvertUTF_RESTORE_WARNINGS \ + _Pragma("GCC diagnostic pop") +#endif +#ifndef ConvertUTF_DISABLE_WARNINGS +# define ConvertUTF_DISABLE_WARNINGS +#endif +#ifndef ConvertUTF_RESTORE_WARNINGS +# define ConvertUTF_RESTORE_WARNINGS +#endif + +ConvertUTF_DISABLE_WARNINGS + namespace llvm { static const int halfShift = 10; /* used for shifting by 10 bits */ @@ -708,3 +737,5 @@ ConversionResult ConvertUTF8toUTF32(const UTF8 **sourceStart, --------------------------------------------------------------------- */ } // namespace llvm + +ConvertUTF_RESTORE_WARNINGS |