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.cpp b/tools/bugpoint/BugDriver.cpp
index 340522a..93b09fb 100644
--- a/tools/bugpoint/BugDriver.cpp
+++ b/tools/bugpoint/BugDriver.cpp
@@ -64,7 +64,8 @@
 }
 
 BugDriver::BugDriver(const char *toolname, bool as_child, bool find_bugs,
-                     unsigned timeout, unsigned memlimit, LLVMContext* ctxt)
+                     unsigned timeout, unsigned memlimit,
+                     const LLVMContext& ctxt)
   : Context(ctxt), ToolName(toolname), ReferenceOutputFile(OutputFile),
     Program(0), Interpreter(0), SafeInterpreter(0), gcc(0),
     run_as_child(as_child), run_find_bugs(find_bugs), Timeout(timeout), 
@@ -74,7 +75,8 @@
 /// ParseInputFile - Given a bitcode or assembly input filename, parse and
 /// return it, or return null if not possible.
 ///
-Module *llvm::ParseInputFile(const std::string &Filename, LLVMContext* Ctxt) {
+Module *llvm::ParseInputFile(const std::string &Filename,
+                             const LLVMContext& Ctxt) {
   std::auto_ptr<MemoryBuffer> Buffer(MemoryBuffer::getFileOrSTDIN(Filename));
   Module *Result = 0;
   if (Buffer.get())