vendor/llvm/llvm-trunk-r306325

1 files changed, 5 insertions, 0 deletions

diff --git a/include/llvm/CodeGen/MachineMemOperand.h b/include/llvm/CodeGen/MachineMemOperand.h
index 4d83f27eac3c..78adce507b8c 100644
--- a/include/llvm/CodeGen/MachineMemOperand.h
+++ b/include/llvm/CodeGen/MachineMemOperand.h
@@ -59,6 +59,11 @@ struct MachinePointerInfo {
     return MachinePointerInfo(V.get<const PseudoSourceValue*>(), Offset+O);
   }
 
+  /// Return true if memory region [V, V+Offset+Size) is known to be
+  /// dereferenceable.
+  bool isDereferenceable(unsigned Size, LLVMContext &C,
+                         const DataLayout &DL) const;
+
   /// Return the LLVM IR address space number that this pointer points into.
   unsigned getAddrSpace() const;