Add CodeGenFunction::EmitBranch.
 - Emits an unconditional branch, with extra logic to avoid generating
   spurious branches out of dummy blocks.

llvm-svn: 59037
diff --git a/clang/lib/CodeGen/CodeGenFunction.h b/clang/lib/CodeGen/CodeGenFunction.h
index 04d64e4..d482086 100644
--- a/clang/lib/CodeGen/CodeGenFunction.h
+++ b/clang/lib/CodeGen/CodeGenFunction.h
@@ -226,6 +226,11 @@
   
   void EmitBlock(llvm::BasicBlock *BB);
 
+  /// EmitBranch - Emit a branch to the specified basic block from the
+  /// current insert block, taking care to avoid creation of branches
+  /// from dummy blocks.
+  void EmitBranch(llvm::BasicBlock *Block);
+
   /// EmitDummyBlock - Emit a new block which will never be branched
   /// to. This is used to satisfy the invariant that codegen always
   /// has an active unterminated block to dump code into.