[Mips] Use unique_ptr to manage ownership.

Required some tweaking of ValueMap to accommodate a move-only value
type. No functional change intended.

llvm-svn: 235091

1 files changed, 7 insertions, 15 deletions

diff --git a/llvm/lib/Target/Mips/MipsMachineFunction.cpp b/llvm/lib/Target/Mips/MipsMachineFunction.cpp
index 09e722d331f..0d1ee046f0d 100644
--- a/llvm/lib/Target/Mips/MipsMachineFunction.cpp
+++ b/llvm/lib/Target/Mips/MipsMachineFunction.cpp
@@ -60,15 +60,7 @@ void MipsCallEntry::printCustom(raw_ostream &O) const {
 #endif
 }
 
-MipsFunctionInfo::~MipsFunctionInfo() {
-  for (StringMap<const MipsCallEntry *>::iterator
-       I = ExternalCallEntries.begin(), E = ExternalCallEntries.end(); I != E;
-       ++I)
-    delete I->getValue();
-
-  for (const auto &Entry : GlobalCallEntries)
-    delete Entry.second;
-}
+MipsFunctionInfo::~MipsFunctionInfo() {}
 
 bool MipsFunctionInfo::globalBaseRegSet() const {
   return GlobalBaseReg;
@@ -125,21 +117,21 @@ bool MipsFunctionInfo::isEhDataRegFI(int FI) const {
 }
 
 MachinePointerInfo MipsFunctionInfo::callPtrInfo(StringRef Name) {
-  const MipsCallEntry *&E = ExternalCallEntries[Name];
+  std::unique_ptr<const MipsCallEntry> &E = ExternalCallEntries[Name];
 
   if (!E)
-    E = new MipsCallEntry(Name);
+    E = llvm::make_unique<MipsCallEntry>(Name);
 
-  return MachinePointerInfo(E);
+  return MachinePointerInfo(E.get());
 }
 
 MachinePointerInfo MipsFunctionInfo::callPtrInfo(const GlobalValue *Val) {
-  const MipsCallEntry *&E = GlobalCallEntries[Val];
+  std::unique_ptr<const MipsCallEntry> &E = GlobalCallEntries[Val];
 
   if (!E)
-    E = new MipsCallEntry(Val);
+    E = llvm::make_unique<MipsCallEntry>(Val);
 
-  return MachinePointerInfo(E);
+  return MachinePointerInfo(E.get());
 }
 
 int MipsFunctionInfo::getMoveF64ViaSpillFI(const TargetRegisterClass *RC) {