The -fshort-wchar option causes wchar_t to become unsigned, in addition to being

16-bits in size.  Implement this by splitting WChar into two enums, like we have
for char.  This fixes a miscompmilation of XULRunner, PR8856.

llvm-svn: 122558

3 files changed, 7 insertions, 4 deletions

diff --git a/clang/tools/libclang/CIndex.cpp b/clang/tools/libclang/CIndex.cpp
index 61ff611a66b..7e3c3432d56 100644
--- a/clang/tools/libclang/CIndex.cpp
+++ b/clang/tools/libclang/CIndex.cpp
@@ -1291,7 +1291,8 @@ bool CursorVisitor::VisitBuiltinTypeLoc(BuiltinTypeLoc TL) {
   case BuiltinType::UInt128:
   case BuiltinType::Char_S:
   case BuiltinType::SChar:
-  case BuiltinType::WChar:
+  case BuiltinType::WChar_U:
+  case BuiltinType::WChar_S:
   case BuiltinType::Short:
   case BuiltinType::Int:
   case BuiltinType::Long:
diff --git a/clang/tools/libclang/CIndexUSRs.cpp b/clang/tools/libclang/CIndexUSRs.cpp
index 5861ee6309d..c96dad5cd0f 100644
--- a/clang/tools/libclang/CIndexUSRs.cpp
+++ b/clang/tools/libclang/CIndexUSRs.cpp
@@ -550,7 +550,8 @@ void USRGenerator::VisitType(QualType T) {
         case BuiltinType::Char_S:
         case BuiltinType::SChar:
           c = 'C'; break;
-        case BuiltinType::WChar:
+        case BuiltinType::WChar_S:
+        case BuiltinType::WChar_U:
           c = 'W'; break;
         case BuiltinType::Short:
           c = 'S'; break;
diff --git a/clang/tools/libclang/CXType.cpp b/clang/tools/libclang/CXType.cpp
index 2fe360b3199..e1297a43252 100644
--- a/clang/tools/libclang/CXType.cpp
+++ b/clang/tools/libclang/CXType.cpp
@@ -41,7 +41,8 @@ static CXTypeKind GetBuiltinTypeKind(const BuiltinType *BT) {
     BTCASE(UInt128);
     BTCASE(Char_S);
     BTCASE(SChar);
-    BTCASE(WChar);
+    case BuiltinType::WChar_S: return CXType_WChar;
+    case BuiltinType::WChar_U: return CXType_WChar;
     BTCASE(Short);
     BTCASE(Int);
     BTCASE(Long);
@@ -286,7 +287,7 @@ CXString clang_getTypeKindSpelling(enum CXTypeKind K) {
     TKIND(UInt128);
     TKIND(Char_S);
     TKIND(SChar);
-    TKIND(WChar);
+    case CXType_WChar: s = "WChar"; break;
     TKIND(Short);
     TKIND(Int);
     TKIND(Long);