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/ToolChains.h b/lib/Driver/ToolChains.h
index aa8d2a1..b879c18 100644
--- a/lib/Driver/ToolChains.h
+++ b/lib/Driver/ToolChains.h
@@ -31,6 +31,12 @@
 public:
   Generic_GCC(const HostInfo &Host, const char *Arch, const char *Platform, 
               const char *OS) : ToolChain(Host, Arch, Platform, OS) {}
+  ~Generic_GCC() {
+    // Free tool implementations.
+    for (llvm::DenseMap<unsigned, Tool*>::iterator 
+           it = Tools.begin(), ie = Tools.end(); it != ie; ++it) 
+      delete it->second;
+  }
 
   virtual ArgList *TranslateArgs(ArgList &Args) const { return &Args; }