Driver: Release Host, ToolChain, and Tool implementations.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67146 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/HostInfo.cpp b/lib/Driver/HostInfo.cpp
index 5fb9f99..d43d234 100644
--- a/lib/Driver/HostInfo.cpp
+++ b/lib/Driver/HostInfo.cpp
@@ -46,11 +46,12 @@
   unsigned GCCVersion[3];
 
   /// Cache of tool chains we have created.
-  mutable llvm::StringMap<ToolChain*> ToolChains;
+  mutable llvm::StringMap<ToolChain *> ToolChains;
 
 public:
   DarwinHostInfo(const Driver &D, const char *Arch, 
                  const char *Platform, const char *OS);
+  ~DarwinHostInfo();
 
   virtual bool useDriverDriver() const;
 
@@ -74,6 +75,12 @@
   GCCVersion[2] = 1;
 }
 
+DarwinHostInfo::~DarwinHostInfo() {
+  for (llvm::StringMap<ToolChain*>::iterator
+         it = ToolChains.begin(), ie = ToolChains.end(); it != ie; ++it)
+    delete it->second;
+}
+
 bool DarwinHostInfo::useDriverDriver() const { 
   return true;
 }
@@ -122,6 +129,7 @@
 public:
   UnknownHostInfo(const Driver &D, const char *Arch, 
                   const char *Platform, const char *OS);
+  ~UnknownHostInfo();
 
   virtual bool useDriverDriver() const;
 
@@ -134,6 +142,12 @@
   : HostInfo(D, Arch, Platform, OS) {
 }
 
+UnknownHostInfo::~UnknownHostInfo() {
+  for (llvm::StringMap<ToolChain*>::iterator
+         it = ToolChains.begin(), ie = ToolChains.end(); it != ie; ++it)
+    delete it->second;
+}
+
 bool UnknownHostInfo::useDriverDriver() const { 
   return false;
 }