For fastcc on x86, let ECX be used as a return register after EAX and EDX

[oota-llvm.git] / lib / Support / Debug.cpp

diff --git a/lib/Support/Debug.cpp b/lib/Support/Debug.cpp
index f87cddfe4e84a54c93fdbd94c34a0ead3498fc10..50abe0164ac237297b7edd395ac6050ccca8f6c1 100644 (file)
--- a/lib/Support/Debug.cpp
+++ b/lib/Support/Debug.cpp
@@ -1,5 +1,12 @@
 //===-- Debug.cpp - An easy way to add debug output to your code ----------===//
 //
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
 // This file implements a handle way of adding debugging information to your
 // code, without it being enabled all of the time, and without having to add
 // command line options to enable it.
@@ -16,42 +23,52 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "Support/Statistic.h"
-#include "Support/CommandLine.h"
-
-bool DebugFlag;  // DebugFlag - Exported boolean set by the -debug option
+#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/Debug.h"
+using namespace llvm;
 
-namespace {
+// All Debug.h functionality is a no-op in NDEBUG mode.
 #ifndef NDEBUG
-  // -debug - Command line option to enable the DEBUG statements in the passes.
-  // This flag may only be enabled in debug builds.
-  cl::opt<bool, true>
-  Debug("debug", cl::desc("Enable debug output"), cl::Hidden,
-        cl::location(DebugFlag));
-
-  std::string CurrentDebugType;
-  struct DebugOnlyOpt {
-    void operator=(const std::string &Val) const {
-      DebugFlag |= !Val.empty();
-      CurrentDebugType = Val;
-    }
-  } DebugOnlyOptLoc;
-
-  cl::opt<DebugOnlyOpt, true, cl::parser<std::string> >
-  DebugOnly("debug-only", cl::desc("Enable a specific type of debug output"),
-            cl::Hidden, cl::value_desc("debug string"),
-            cl::location(DebugOnlyOptLoc), cl::ValueRequired);
-#endif
-}
+bool llvm::DebugFlag;  // DebugFlag - Exported boolean set by the -debug option
+
+// -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));
+
+static std::string CurrentDebugType;
+static struct DebugOnlyOpt {
+  void operator=(const std::string &Val) const {
+    DebugFlag |= !Val.empty();
+    CurrentDebugType = Val;
+  }
+} DebugOnlyOptLoc;
+
+static cl::opt<DebugOnlyOpt, true, cl::parser<std::string> >
+DebugOnly("debug-only", cl::desc("Enable a specific type of debug output"),
+          cl::Hidden, cl::value_desc("debug string"),
+          cl::location(DebugOnlyOptLoc), cl::ValueRequired);
 
 // isCurrentDebugType - Return true if the specified string is the debug type
 // specified on the command line, or if none was specified on the command line
 // with the -debug-only=X option.
 //
-bool isCurrentDebugType(const char *DebugType) {
-#ifndef NDEBUG
+bool llvm::isCurrentDebugType(const char *DebugType) {
   return CurrentDebugType.empty() || DebugType == CurrentDebugType;
+}
+
+/// SetCurrentDebugType - Set the current debug type, as if the -debug-only=X
+/// option were specified.  Note that DebugFlag also needs to be set to true for
+/// debug output to be produced.
+///
+void llvm::SetCurrentDebugType(const char *Type) {
+  CurrentDebugType = Type;
+}
+
 #else
-  return false;
-#endif
+// Avoid "has no symbols" warning.
+namespace llvm {
+int Debug_dummy = 0;
 }
+#endif