Implement P0482R2, support for char8_t type.

This is not yet part of any C++ working draft, and so is controlled by the flag
-fchar8_t rather than a -std= flag. (The GCC implementation is controlled by a
flag with the same name.)

This implementation is experimental, and will be removed or revised
substantially to match the proposal as it makes its way through the C++
committee.

llvm-svn: 331244

1 files changed, 3 insertions, 1 deletions

diff --git a/clang/lib/CodeGen/ItaniumCXXABI.cpp b/clang/lib/CodeGen/ItaniumCXXABI.cpp
index f92d7ec0632..0e35633e1d6 100644
--- a/clang/lib/CodeGen/ItaniumCXXABI.cpp
+++ b/clang/lib/CodeGen/ItaniumCXXABI.cpp
@@ -2706,6 +2706,7 @@ static bool TypeInfoIsInStandardLibrary(const BuiltinType *Ty) {
     case BuiltinType::LongDouble:
     case BuiltinType::Float16:
     case BuiltinType::Float128:
+    case BuiltinType::Char8:
     case BuiltinType::Char16:
     case BuiltinType::Char32:
     case BuiltinType::Int128:
@@ -3567,7 +3568,8 @@ void ItaniumCXXABI::EmitFundamentalRTTIDescriptors(bool DLLExport) {
       getContext().UnsignedInt128Ty,   getContext().HalfTy,
       getContext().FloatTy,            getContext().DoubleTy,
       getContext().LongDoubleTy,       getContext().Float128Ty,
-      getContext().Char16Ty,           getContext().Char32Ty
+      getContext().Char8Ty,            getContext().Char16Ty,
+      getContext().Char32Ty
   };
   for (const QualType &FundamentalType : FundamentalTypes)
     EmitFundamentalRTTIDescriptor(FundamentalType, DLLExport);