Hold the LLVMContext by reference rather than by pointer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74640 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/bugpoint/BugDriver.h b/tools/bugpoint/BugDriver.h
index 4c81cc2..34267d5 100644
--- a/tools/bugpoint/BugDriver.h
+++ b/tools/bugpoint/BugDriver.h
@@ -43,7 +43,7 @@
 extern bool BugpointIsInterrupted;
 
 class BugDriver {
-  LLVMContext* Context;
+  const LLVMContext& Context;
   const std::string ToolName;  // Name of bugpoint
   std::string ReferenceOutputFile; // Name of `good' output file
   Module *Program;             // The raw program, linked together
@@ -62,11 +62,11 @@
 
 public:
   BugDriver(const char *toolname, bool as_child, bool find_bugs,
-            unsigned timeout, unsigned memlimit, LLVMContext* ctxt);
+            unsigned timeout, unsigned memlimit, const LLVMContext& ctxt);
 
   const std::string &getToolName() const { return ToolName; }
 
-  LLVMContext* getContext() { return Context; }
+  const LLVMContext& getContext() { return Context; }
 
   // Set up methods... these methods are used to copy information about the
   // command line arguments into instance variables of BugDriver.
@@ -294,7 +294,8 @@
 /// ParseInputFile - Given a bitcode or assembly input filename, parse and
 /// return it, or return null if not possible.
 ///
-Module *ParseInputFile(const std::string &InputFilename, LLVMContext* ctxt);
+Module *ParseInputFile(const std::string &InputFilename,
+                       const LLVMContext& ctxt);
 
 
 /// getPassesString - Turn a list of passes into a string which indicates the