Parsing/AST support for Structured Exception Handling

Patch authored by Sohail Somani.

Provide parsing and AST support for Windows structured exception handling.

llvm-svn: 130366

clang/lib/CodeGen/CGStmt.cpp

@@ -72,6 +72,8 @@ void CodeGenFunction::EmitStmt(const Stmt *S) {
   switch (S->getStmtClass()) {
   case Stmt::NoStmtClass:
   case Stmt::CXXCatchStmtClass:
+  case Stmt::SEHExceptStmtClass:
+  case Stmt::SEHFinallyStmtClass:
     llvm_unreachable("invalid statement class to emit generically");
   case Stmt::NullStmtClass:
   case Stmt::CompoundStmtClass:
@@ -155,6 +157,8 @@ void CodeGenFunction::EmitStmt(const Stmt *S) {
     break;
   case Stmt::CXXForRangeStmtClass:
     EmitCXXForRangeStmt(cast<CXXForRangeStmt>(*S));
+  case Stmt::SEHTryStmtClass:
+    // FIXME Not yet implemented
     break;
   }
 }