[mips] Fix a memory leak bug report by NAKAMURA Takumi.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170012 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/Mips/MipsTargetMachine.h b/lib/Target/Mips/MipsTargetMachine.h
index 8b1a06f320052a8faf3cc6403941389f4ce812ad..ddf15010dc42e9f147fdc316a8ee02b2609d0adc 100644 (file)
--- a/lib/Target/Mips/MipsTargetMachine.h
+++ b/lib/Target/Mips/MipsTargetMachine.h
@@ -20,6 +20,7 @@
 #include "MipsJITInfo.h"
 #include "MipsSelectionDAGInfo.h"
 #include "MipsSubtarget.h"
+#include "llvm/ADT/OwningPtr.h"
 #include "llvm/DataLayout.h"
 #include "llvm/Target/TargetFrameLowering.h"
 #include "llvm/Target/TargetMachine.h"
@@ -32,8 +33,8 @@ class MipsRegisterInfo;
 class MipsTargetMachine : public LLVMTargetMachine {
   MipsSubtarget       Subtarget;
   const DataLayout    DL; // Calculates type size & alignment
-  const MipsInstrInfo *InstrInfo;
-  const MipsFrameLowering *FrameLowering;
+  OwningPtr<const MipsInstrInfo> InstrInfo;
+  OwningPtr<const MipsFrameLowering> FrameLowering;
   MipsTargetLowering  TLInfo;
   MipsSelectionDAGInfo TSInfo;
   MipsJITInfo JITInfo;
@@ -47,12 +48,12 @@ public:
                     CodeGenOpt::Level OL,
                     bool isLittle);
 
-  virtual ~MipsTargetMachine() { delete InstrInfo; }
+  virtual ~MipsTargetMachine() {}
 
   virtual const MipsInstrInfo *getInstrInfo() const
-  { return InstrInfo; }
+  { return InstrInfo.get(); }
   virtual const TargetFrameLowering *getFrameLowering() const
-  { return FrameLowering; }
+  { return FrameLowering.get(); }
   virtual const MipsSubtarget *getSubtargetImpl() const
   { return &Subtarget; }
   virtual const DataLayout *getDataLayout()    const