Extract calls to method pointers out as an ABI routine.

No functionality change.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111752 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 22 insertions, 0 deletions

diff --git a/lib/CodeGen/CGCXX.cpp b/lib/CodeGen/CGCXX.cpp
index edfbe0e72e..7ae83f44b4 100644
--- a/lib/CodeGen/CGCXX.cpp
+++ b/lib/CodeGen/CGCXX.cpp
@@ -357,3 +357,25 @@ CodeGenFunction::BuildVirtualCall(const CXXDestructorDecl *DD, CXXDtorType Type,
 }
 
 CGCXXABI::~CGCXXABI() {}
+
+llvm::Value *CGCXXABI::EmitLoadOfMemberFunctionPointer(CodeGenFunction &CGF,
+                                                       llvm::Value *&This,
+                                                       llvm::Value *MemPtr,
+                                                 const MemberPointerType *MPT) {
+  Diagnostic &Diags = CGF.CGM.getDiags();
+  unsigned DiagID =
+    Diags.getCustomDiagID(Diagnostic::Error,
+                          "cannot yet compile member pointer calls in this ABI");
+  Diags.Report(CGF.getContext().getFullLoc(CGF.CurCodeDecl->getLocation()),
+               DiagID);
+
+  const FunctionProtoType *FPT = 
+    MPT->getPointeeType()->getAs<FunctionProtoType>();
+  const CXXRecordDecl *RD = 
+    cast<CXXRecordDecl>(MPT->getClass()->getAs<RecordType>()->getDecl());
+  const llvm::FunctionType *FTy = 
+    CGF.CGM.getTypes().GetFunctionType(
+                                 CGF.CGM.getTypes().getFunctionInfo(RD, FPT),
+                                 FPT->isVariadic());
+  return llvm::Constant::getNullValue(FTy->getPointerTo());
+}