MS ABI: Implement copy-ctor closures, finish implementing throw
This adds support for copy-constructor closures. These are generated
when the C++ runtime has to call a copy-constructor with a particular
calling convention or with default arguments substituted in to the call.
Because the runtime has no mechanism to call the function with a
different calling convention or know-how to evaluate the default
arguments at run-time, we create a thunk which will do all the
appropriate work and package it in a way the runtime can use.
Differential Revision: http://reviews.llvm.org/D8225
llvm-svn: 231952
diff --git a/clang/lib/AST/ItaniumMangle.cpp b/clang/lib/AST/ItaniumMangle.cpp
index 13136b3..f890719 100644
--- a/clang/lib/AST/ItaniumMangle.cpp
+++ b/clang/lib/AST/ItaniumMangle.cpp
@@ -3442,6 +3442,9 @@
case Ctor_Comdat:
Out << "C5";
break;
+ case Ctor_DefaultClosure:
+ case Ctor_CopyingClosure:
+ llvm_unreachable("closure constructors don't exist for the Itanium ABI!");
}
}