diff --git a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
index 6b46cc0..ec9cfd5 100644
--- a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -1,4 +1,3 @@
-//===-- AsmPrinter.cpp - Common AsmPrinter code ---------------------------===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -42,8 +41,15 @@
 #include "llvm/ADT/Statistic.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/Format.h"
+#include "llvm/Support/Timer.h"
 using namespace llvm;
 
+namespace {
+  const char *DWARFGroupName = "DWARF Emission";
+  const char *DbgTimerName = "DWARF Debug Writer";
+  const char *EHTimerName = "DWARF Exception Writer";
+} // end anonymous namespace
+
 STATISTIC(EmittedInsts, "Number of machine instrs printed");
 
 char AsmPrinter::ID = 0;
@@ -347,8 +353,22 @@
   }
   
   // Emit pre-function debug and/or EH information.
-  if (DE) DE->BeginFunction(MF);
-  if (DD) DD->beginFunction(MF);
+  if (DE) {
+    if (TimePassesIsEnabled) {
+      NamedRegionTimer T(EHTimerName, DWARFGroupName);
+      DE->BeginFunction(MF);
+    } else {
+      DE->BeginFunction(MF);
+    }
+  }
+  if (DD) {
+    if (TimePassesIsEnabled) {
+      NamedRegionTimer T(DbgTimerName, DWARFGroupName);
+      DD->beginFunction(MF);
+    } else {
+      DD->beginFunction(MF);
+    }
+  }
 }
 
 /// EmitFunctionEntryLabel - Emit the label that is the entrypoint for the
@@ -507,8 +527,14 @@
       
       ++EmittedInsts;
       
-      if (ShouldPrintDebugScopes)
-        DD->beginScope(II);
+      if (ShouldPrintDebugScopes) {
+	if (TimePassesIsEnabled) {
+	  NamedRegionTimer T(DbgTimerName, DWARFGroupName);
+	  DD->beginScope(II);
+	} else {
+	  DD->beginScope(II);
+	}
+      }
       
       if (isVerbose())
         EmitComments(*II, OutStreamer.GetCommentOS());
@@ -539,8 +565,14 @@
         break;
       }
       
-      if (ShouldPrintDebugScopes)
-        DD->endScope(II);
+      if (ShouldPrintDebugScopes) {
+	if (TimePassesIsEnabled) {
+	  NamedRegionTimer T(DbgTimerName, DWARFGroupName);
+	  DD->endScope(II);
+	} else {
+	  DD->endScope(II);
+	}
+      }
     }
   }
   
@@ -569,8 +601,22 @@
   }
   
   // Emit post-function debug information.
-  if (DD) DD->endFunction(MF);
-  if (DE) DE->EndFunction();
+  if (DD) {
+    if (TimePassesIsEnabled) {
+      NamedRegionTimer T(DbgTimerName, DWARFGroupName);
+      DD->endFunction(MF);
+    } else {
+      DD->endFunction(MF);
+    }
+  }
+  if (DE) {
+    if (TimePassesIsEnabled) {
+      NamedRegionTimer T(EHTimerName, DWARFGroupName);
+      DE->EndFunction();
+    } else {
+      DE->EndFunction();
+    }
+  }
   MMI->EndFunction();
   
   // Print out jump tables referenced by the function.
@@ -588,11 +634,21 @@
   
   // Finalize debug and EH information.
   if (DE) {
-    DE->EndModule();
+    if (TimePassesIsEnabled) {
+      NamedRegionTimer T(EHTimerName, DWARFGroupName);
+      DE->EndModule();
+    } else {
+      DE->EndModule();
+    }
     delete DE; DE = 0;
   }
   if (DD) {
-    DD->endModule();
+    if (TimePassesIsEnabled) {
+      NamedRegionTimer T(DbgTimerName, DWARFGroupName);
+      DD->endModule();
+    } else {
+      DD->endModule();
+    }
     delete DD; DD = 0;
   }
   
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index 289dd80..b7d682e 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -315,8 +315,13 @@
       
   DwarfFrameSectionSym = DwarfInfoSectionSym = DwarfAbbrevSectionSym = 0;
   DwarfStrSectionSym = TextSectionSym = 0;
-      
-  beginModule(M);
+
+  if (TimePassesIsEnabled) {
+      NamedRegionTimer T(DbgTimerName, DWARFGroupName);
+      beginModule(M);
+  } else {
+      beginModule(M);
+  }
 }
 DwarfDebug::~DwarfDebug() {
   for (unsigned j = 0, M = DIEBlocks.size(); j < M; ++j)
@@ -1844,8 +1849,6 @@
 /// content. Create global DIEs and emit initial debug info sections.
 /// This is inovked by the target AsmPrinter.
 void DwarfDebug::beginModule(Module *M) {
-  NamedRegionTimer T(DbgTimerName, DWARFGroupName);
-
   DebugInfoFinder DbgFinder;
   DbgFinder.processModule(*M);
 
@@ -1908,7 +1911,6 @@
 /// endModule - Emit all Dwarf sections that should come after the content.
 ///
 void DwarfDebug::endModule() {
-  NamedRegionTimer T(DbgTimerName, DWARFGroupName);
   if (!ModuleCU) return;
 
   // Attach DW_AT_inline attribute with inlined subprogram DIEs.
@@ -2307,8 +2309,6 @@
 /// beginFunction - Gather pre-function debug information.  Assumes being
 /// emitted immediately after the function entry point.
 void DwarfDebug::beginFunction(const MachineFunction *MF) {
-  NamedRegionTimer T(DbgTimerName, DWARFGroupName);
-
   if (!MMI->hasDebugInfo()) return;
   if (!extractScopeInformation()) return;
   
@@ -2341,8 +2341,6 @@
 /// endFunction - Gather and emit post-function debug information.
 ///
 void DwarfDebug::endFunction(const MachineFunction *MF) {
-  NamedRegionTimer T(DbgTimerName, DWARFGroupName);
-
   if (!MMI->hasDebugInfo() || DbgScopeMap.empty()) return;
 
   if (CurrentFnDbgScope) {
@@ -2389,8 +2387,6 @@
 /// unique label that was emitted and which provides correspondence to
 /// the source line list.
 MCSymbol *DwarfDebug::recordSourceLine(unsigned Line, unsigned Col, MDNode *S) {
-  NamedRegionTimer T(DbgTimerName, DWARFGroupName);
-
   StringRef Dir;
   StringRef Fn;
 
diff --git a/lib/CodeGen/AsmPrinter/DwarfException.cpp b/lib/CodeGen/AsmPrinter/DwarfException.cpp
index b73147d..c4bd696 100644
--- a/lib/CodeGen/AsmPrinter/DwarfException.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfException.cpp
@@ -33,17 +33,11 @@
 #include "llvm/Target/TargetRegisterInfo.h"
 #include "llvm/Support/Dwarf.h"
 #include "llvm/Support/FormattedStream.h"
-#include "llvm/Support/Timer.h"
 #include "llvm/ADT/SmallString.h"
 #include "llvm/ADT/StringExtras.h"
 #include "llvm/ADT/Twine.h"
 using namespace llvm;
 
-namespace {
-  const char *DWARFGroupName = "DWARF Emission";
-  const char *EHTimerName = "DWARF Exception Writer";
-} // end anonymous namespace
-
 DwarfException::DwarfException(AsmPrinter *A)
   : Asm(A), MMI(Asm->MMI), shouldEmitTable(false), shouldEmitMoves(false),
     shouldEmitTableModule(false), shouldEmitMovesModule(false) {}
@@ -896,8 +890,6 @@
 /// EndModule - Emit all exception information that should come after the
 /// content.
 void DwarfException::EndModule() {
-  NamedRegionTimer T(EHTimerName, DWARFGroupName);
-
   if (Asm->MAI->getExceptionHandlingType() != ExceptionHandling::Dwarf)
     return;
 
@@ -917,7 +909,6 @@
 /// BeginFunction - Gather pre-function exception information. Assumes it's
 /// being emitted immediately after the function entry point.
 void DwarfException::BeginFunction(const MachineFunction *MF) {
-  NamedRegionTimer T(EHTimerName, DWARFGroupName);
   shouldEmitTable = shouldEmitMoves = false;
 
   // If any landing pads survive, we need an EH table.
@@ -939,7 +930,6 @@
 /// EndFunction - Gather and emit post-function exception information.
 ///
 void DwarfException::EndFunction() {
-  NamedRegionTimer T(EHTimerName, DWARFGroupName);
   if (!shouldEmitMoves && !shouldEmitTable) return;
 
   Asm->OutStreamer.EmitLabel(Asm->GetTempSymbol("eh_func_end",