Add a getFunctionInfo that takes a BlockPointerType.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68452 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGCall.cpp b/lib/CodeGen/CGCall.cpp
index e3f824f..43db767 100644
--- a/lib/CodeGen/CGCall.cpp
+++ b/lib/CodeGen/CGCall.cpp
@@ -53,6 +53,19 @@
   return getFunctionInfo(FTP->getResultType(), ArgTys);
 }
 
+const 
+CGFunctionInfo &CodeGenTypes::getFunctionInfo(const BlockPointerType *BPT) {
+  llvm::SmallVector<QualType, 16> ArgTys;
+  const FunctionProtoType *FTP = 
+    BPT->getPointeeType()->getAsFunctionProtoType();
+  
+  // Add the block pointer.
+  ArgTys.push_back(Context.getPointerType(Context.VoidTy));
+  for (unsigned i = 0, e = FTP->getNumArgs(); i != e; ++i)
+    ArgTys.push_back(FTP->getArgType(i));
+  return getFunctionInfo(FTP->getResultType(), ArgTys);
+}
+
 const CGFunctionInfo &CodeGenTypes::getFunctionInfo(const CXXMethodDecl *MD) {
   llvm::SmallVector<QualType, 16> ArgTys;
   // Add the 'this' pointer.