Fix for PR7040: Don't try to compute the LLVM type for a function where it

isn't possible to compute.

This patch is mostly refactoring; the key change is the addition of the code
starting with the comment, "Check whether the function has a computable LLVM
signature."  The solution here is essentially the same as the way the
vtable code handles such functions.

llvm-svn: 105151

1 files changed, 4 insertions, 0 deletions

diff --git a/clang/lib/CodeGen/CodeGenModule.h b/clang/lib/CodeGen/CodeGenModule.h
index 319744c4be3..00974c70ec1 100644
--- a/clang/lib/CodeGen/CodeGenModule.h
+++ b/clang/lib/CodeGen/CodeGenModule.h
@@ -315,6 +315,10 @@ public:
   llvm::GlobalValue *GetAddrOfCXXDestructor(const CXXDestructorDecl *D,
                                             CXXDtorType Type);
 
+  // GetCXXMemberFunctionPointerValue - Given a method declaration, return the
+  // integer used in a member function pointer to refer to that value.
+  llvm::Constant *GetCXXMemberFunctionPointerValue(const CXXMethodDecl *MD);
+
   /// getBuiltinLibFunction - Given a builtin id for a function like
   /// "__builtin_fabsf", return a Function* for "fabsf".
   llvm::Value *getBuiltinLibFunction(const FunctionDecl *FD,