Comment MO_FPImmediate and doxygenate surrounding comments.

[oota-llvm.git] / include / llvm / CodeGen / MachineBasicBlock.h

diff --git a/include/llvm/CodeGen/MachineBasicBlock.h b/include/llvm/CodeGen/MachineBasicBlock.h
index b47108a862701a866d0c2d0e03181f007d80b3f3..46a82884efa4b197482671ce5f70389c290e61e4 100644 (file)
--- a/include/llvm/CodeGen/MachineBasicBlock.h
+++ b/include/llvm/CodeGen/MachineBasicBlock.h
@@ -102,6 +102,8 @@ public:
 
   MachineInstr& front() { return Insts.front(); }
   MachineInstr& back()  { return Insts.back(); }
+  const MachineInstr& front() const { return Insts.front(); }
+  const MachineInstr& back()  const { return Insts.back(); }
 
   iterator                begin()       { return Insts.begin();  }
   const_iterator          begin() const { return Insts.begin();  }
@@ -234,6 +236,13 @@ public:
   /// block.
   bool isSuccessor(MachineBasicBlock *MBB) const;
 
+  /// isLayoutSuccessor - Return true if the specified MBB will be emitted
+  /// immediately after this block, such that if this block exits by
+  /// falling through, control will transfer to the specified MBB. Note
+  /// that MBB need not be a successor at all, for example if this block
+  /// ends with an unconditional branch to some other block.
+  bool isLayoutSuccessor(MachineBasicBlock *MBB) const;
+
   /// getFirstTerminator - returns an iterator to the first terminator
   /// instruction of this basic block. If a terminator does not exist,
   /// it returns end()