Use a OwningPtr instead of a manual delete.

llvm-svn: 185673
diff --git a/llvm/lib/Target/AArch64/Disassembler/AArch64Disassembler.cpp b/llvm/lib/Target/AArch64/Disassembler/AArch64Disassembler.cpp
index af0e23d..36dd704 100644
--- a/llvm/lib/Target/AArch64/Disassembler/AArch64Disassembler.cpp
+++ b/llvm/lib/Target/AArch64/Disassembler/AArch64Disassembler.cpp
@@ -38,7 +38,7 @@
 namespace {
 /// AArch64 disassembler for all AArch64 platforms.
 class AArch64Disassembler : public MCDisassembler {
-  const MCRegisterInfo *RegInfo;
+  OwningPtr<const MCRegisterInfo> RegInfo;
 public:
   /// Initializes the disassembler.
   ///
@@ -46,9 +46,7 @@
     : MCDisassembler(STI), RegInfo(Info) {
   }
 
-  ~AArch64Disassembler() {
-    delete RegInfo;
-  }
+  ~AArch64Disassembler() {}
 
   /// See MCDisassembler.
   DecodeStatus getInstruction(MCInst &instr,
@@ -58,7 +56,7 @@
                               raw_ostream &vStream,
                               raw_ostream &cStream) const;
 
-  const MCRegisterInfo *getRegInfo() const { return RegInfo; }
+  const MCRegisterInfo *getRegInfo() const { return RegInfo.get(); }
 };
 
 }