Add MachineBasicBlock::getName, and use it in place of getBasicBlock()->getName.

Fix debug code that assumes getBasicBlock never returns NULL.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89428 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 1 deletions

diff --git a/include/llvm/CodeGen/MachineBasicBlock.h b/include/llvm/CodeGen/MachineBasicBlock.h
index bb50b5df4c..78662784eb 100644
--- a/include/llvm/CodeGen/MachineBasicBlock.h
+++ b/include/llvm/CodeGen/MachineBasicBlock.h
@@ -92,10 +92,15 @@ class MachineBasicBlock : public ilist_node<MachineBasicBlock> {
 
 public:
   /// getBasicBlock - Return the LLVM basic block that this instance
-  /// corresponded to originally.
+  /// corresponded to originally. Note that this may be NULL if this instance
+  /// does not correspond directly to an LLVM basic block.
   ///
   const BasicBlock *getBasicBlock() const { return BB; }
 
+  /// getName - Return the name of the corresponding LLVM basic block, or
+  /// "(null)".
+  StringRef getName() const;
+
   /// hasAddressTaken - Test whether this block is potentially the target
   /// of an indirect branch.
   bool hasAddressTaken() const { return AddressTaken; }