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 806a6559df955d0d2dd332788b64d74415605037..50abe0164ac237297b7edd395ac6050ccca8f6c1 100644 (file)
--- a/lib/Support/Debug.cpp
+++ b/lib/Support/Debug.cpp
@@ -27,9 +27,10 @@
 #include "llvm/Support/Debug.h"
 using namespace llvm;
 
+// All Debug.h functionality is a no-op in NDEBUG mode.
+#ifndef NDEBUG
 bool llvm::DebugFlag;  // DebugFlag - Exported boolean set by the -debug option
 
-#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>
@@ -48,16 +49,26 @@ 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);
-#endif
 
 // 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 llvm::isCurrentDebugType(const char *DebugType) {
-#ifndef NDEBUG
   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