diff -r dc0a15e6e113 -r 4b9d492b033d src/base/flags.hh
--- a/src/base/flags.hh	Wed Aug 19 10:03:03 2015 +0100
+++ b/src/base/flags.hh	Wed Aug 19 10:03:19 2015 +0100
@@ -39,8 +39,8 @@
 
   public:
     typedef T Type;
-    Flags() : _flags(0) {}
-    Flags(Type flags) : _flags(flags) {}
+    constexpr Flags() : _flags(0) {}
+    constexpr Flags(Type flags) : _flags(flags) {}
 
     operator const Type() const { return _flags; }
 
diff -r dc0a15e6e113 -r 4b9d492b033d src/mem/request.hh
--- a/src/mem/request.hh	Wed Aug 19 10:03:03 2015 +0100
+++ b/src/mem/request.hh	Wed Aug 19 10:03:19 2015 +0100
@@ -222,27 +222,6 @@
   private:
 
     /**
-     * Set up a physical (e.g. device) request in a previously
-     * allocated Request object.
-     */
-    void
-    setPhys(Addr paddr, unsigned size, Flags flags, MasterID mid, Tick time)
-    {
-        assert(size >= 0);
-        _paddr = paddr;
-        _size = size;
-        _time = time;
-        _masterId = mid;
-        _flags.clear(~STICKY_FLAGS);
-        _flags.set(flags);
-        privateFlags.clear(~STICKY_PRIVATE_FLAGS);
-        privateFlags.set(VALID_PADDR|VALID_SIZE);
-        depth = 0;
-        accessDelta = 0;
-        //translateDelta = 0;
-    }
-
-    /**
      * The physical address of the request. Valid only if validPaddr
      * is set.
      */
@@ -304,7 +283,7 @@
      *  _flags and privateFlags are cleared by Flags default
      *  constructor.)
      */
-    Request()
+    constexpr Request()
         : _paddr(0), _size(0), _masterId(invldMasterId), _time(0),
           _taskId(ContextSwitchTaskId::Unknown), _asid(0), _vaddr(0),
           _extraData(0), _contextId(0), _threadId(0), _pc(0),
@@ -317,31 +296,22 @@
      * These fields are adequate to perform a request.
      */
     Request(Addr paddr, unsigned size, Flags flags, MasterID mid)
-        : _paddr(0), _size(0), _masterId(invldMasterId), _time(0),
+        : Request(paddr, size, flags, mid, curTick())
+    { }
+
+    constexpr Request(Addr paddr, unsigned size, Flags flags, MasterID mid,
+                      Tick time)
+        : _paddr(paddr), _size(size), _masterId(mid),
+          _flags(flags), privateFlags(VALID_PADDR|VALID_SIZE), _time(time),
           _taskId(ContextSwitchTaskId::Unknown), _asid(0), _vaddr(0),
           _extraData(0), _contextId(0), _threadId(0), _pc(0),
           translateDelta(0), accessDelta(0), depth(0)
-    {
-        setPhys(paddr, size, flags, mid, curTick());
-    }
-
-    Request(Addr paddr, unsigned size, Flags flags, MasterID mid, Tick time)
-        : _paddr(0), _size(0), _masterId(invldMasterId), _time(0),
-          _taskId(ContextSwitchTaskId::Unknown), _asid(0), _vaddr(0),
-          _extraData(0), _contextId(0), _threadId(0), _pc(0),
-          translateDelta(0), accessDelta(0), depth(0)
-    {
-        setPhys(paddr, size, flags, mid, time);
-    }
+    { }
 
     Request(Addr paddr, unsigned size, Flags flags, MasterID mid, Tick time,
             Addr pc)
-        : _paddr(0), _size(0), _masterId(invldMasterId), _time(0),
-          _taskId(ContextSwitchTaskId::Unknown), _asid(0), _vaddr(0),
-          _extraData(0), _contextId(0), _threadId(0), _pc(0),
-          translateDelta(0), accessDelta(0), depth(0)
+        : Request(paddr, size, flags, mid, time)
     {
-        setPhys(paddr, size, flags, mid, time);
         privateFlags.set(VALID_PC);
         _pc = pc;
     }