hotspot/src/share/vm/runtime/deoptimization.hpp
changeset 34173 01bb07d23a5b
parent 33160 c59f1676d27e
child 34185 ee71c590a456
--- a/hotspot/src/share/vm/runtime/deoptimization.hpp	Tue Nov 10 21:09:49 2015 +0300
+++ b/hotspot/src/share/vm/runtime/deoptimization.hpp	Wed Nov 11 14:40:38 2015 -1000
@@ -123,7 +123,8 @@
     Unpack_deopt                = 0, // normal deoptimization, use pc computed in unpack_vframe_on_stack
     Unpack_exception            = 1, // exception is pending
     Unpack_uncommon_trap        = 2, // redo last byte code (C2 only)
-    Unpack_reexecute            = 3  // reexecute bytecode (C1 only)
+    Unpack_reexecute            = 3, // reexecute bytecode (C1 only)
+    Unpack_LIMIT                = 4
   };
 
   // Checks all compiled methods. Invalid methods are deleted and
@@ -179,13 +180,13 @@
     intptr_t  _initial_info;              // Platform dependent data for the sender frame (was FP on x86)
     int       _caller_actual_parameters;  // The number of actual arguments at the
                                           // interpreted caller of the deoptimized frame
+    int       _unpack_kind;               // exec_mode that can be changed during fetch_unroll_info
 
     // The following fields are used as temps during the unpacking phase
     // (which is tight on registers, especially on x86). They really ought
     // to be PD variables but that involves moving this class into its own
     // file to use the pd include mechanism. Maybe in a later cleanup ...
     intptr_t  _counter_temp;              // SHOULD BE PD VARIABLE (x86 frame count temp)
-    intptr_t  _unpack_kind;               // SHOULD BE PD VARIABLE (x86 unpack kind)
     intptr_t  _sender_sp_temp;            // SHOULD BE PD VARIABLE (x86 sender_sp)
    public:
     // Constructor
@@ -195,7 +196,8 @@
                 int  number_of_frames,
                 intptr_t* frame_sizes,
                 address* frames_pcs,
-                BasicType return_type);
+                BasicType return_type,
+                int unpack_kind);
     ~UnrollBlock();
 
     // Returns where a register is located.
@@ -205,6 +207,7 @@
     intptr_t* frame_sizes()  const { return _frame_sizes; }
     int number_of_frames()  const { return _number_of_frames; }
     address*  frame_pcs()   const { return _frame_pcs ; }
+    int  unpack_kind()   const { return _unpack_kind; }
 
     // Returns the total size of frames
     int size_of_frames() const;
@@ -237,7 +240,7 @@
   // deoptimized frame.
   // @argument thread.     Thread where stub_frame resides.
   // @see OptoRuntime::deoptimization_fetch_unroll_info_C
-  static UnrollBlock* fetch_unroll_info(JavaThread* thread);
+  static UnrollBlock* fetch_unroll_info(JavaThread* thread, int exec_mode);
 
   //** Unpacks vframeArray onto execution stack
   // Called by assembly stub after execution has returned to
@@ -262,7 +265,7 @@
 
   //** Performs an uncommon trap for compiled code.
   // The top most compiler frame is converted into interpreter frames
-  static UnrollBlock* uncommon_trap(JavaThread* thread, jint unloaded_class_index);
+  static UnrollBlock* uncommon_trap(JavaThread* thread, jint unloaded_class_index, jint exec_mode);
   // Helper routine that enters the VM and may block
   static void uncommon_trap_inner(JavaThread* thread, jint unloaded_class_index);
 
@@ -423,7 +426,7 @@
   static void load_class_by_index(constantPoolHandle constant_pool, int index, TRAPS);
   static void load_class_by_index(constantPoolHandle constant_pool, int index);
 
-  static UnrollBlock* fetch_unroll_info_helper(JavaThread* thread);
+  static UnrollBlock* fetch_unroll_info_helper(JavaThread* thread, int exec_mode);
 
   static DeoptAction _unloaded_action; // == Action_reinterpret;
   static const char* _trap_reason_name[];