Move debug functionality to Debug.cpp/Debug.h


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7494 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/Statistic.cpp b/lib/Support/Statistic.cpp
index 1141086..5c7cf63 100644
--- a/lib/Support/Statistic.cpp
+++ b/lib/Support/Statistic.cpp
@@ -16,15 +16,12 @@
 
 #include "Support/Statistic.h"
 #include "Support/CommandLine.h"
-#include <iostream>
 #include <sstream>
-#include <algorithm>
+#include <iostream>
 
 // GetLibSupportInfoOutputFile - Return a file stream to print our output on...
 std::ostream *GetLibSupportInfoOutputFile();
 
-bool DebugFlag;  // DebugFlag - Exported boolean set by the -debug option
-
 unsigned StatisticBase::NumStats = 0;
 
 // -stats - Command line option to cause transformations to emit stats about
@@ -33,14 +30,6 @@
 static cl::opt<bool>
 Enabled("stats", cl::desc("Enable statistics output from program"));
 
-#ifndef NDEBUG
-// -debug - Command line option to enable the DEBUG statements in the passes.
-// This flag may only be enabled in debug builds.
-static cl::opt<bool, true>
-Debug("debug", cl::desc("Enable debug output"), cl::Hidden,
-      cl::location(DebugFlag));
-#endif
-
 struct StatRecord {
   std::string Value;
   const char *Name, *Desc;