C++ casts, (static_cast. dynamic_cast, etc.) can have postfix-expression pieces.

llvm-svn: 54850

clang/lib/Parse/ParseExpr.cpp

@@ -538,7 +538,9 @@ Parser::ExprResult Parser::ParseCastExpression(bool isUnaryExpression) {
   case tok::kw_dynamic_cast:
   case tok::kw_reinterpret_cast:
   case tok::kw_static_cast:
-    return ParseCXXCasts();
+    Res = ParseCXXCasts();
+    // These can be followed by postfix-expr pieces.
+    return ParsePostfixExpressionSuffix(Res);
   case tok::kw_this:
     Res = ParseCXXThis();
     // This can be followed by postfix-expr pieces.

clang/test/Parser/cxx-casting.cpp

@@ -29,3 +29,8 @@ double static_cast_test(int i)
 {
   return static_cast<double>(i);
 }
+
+char postfix_expr_test()
+{
+  return reinterpret_cast<char*>(0xdeadbeef)[0];
+}