--- a/hotspot/src/cpu/ppc/vm/cppInterpreter_ppc.cpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/cpu/ppc/vm/cppInterpreter_ppc.cpp	Tue Apr 01 09:36:49 2014 +0200
@@ -1,6 +1,6 @@
 /*
- * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
- * Copyright 2012, 2013 SAP AG. All rights reserved.
+ * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright 2012, 2014 SAP AG. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -2947,17 +2947,60 @@
   istate->_last_Java_fp = last_Java_fp;
 }
 
-int AbstractInterpreter::layout_activation(Method* method,
-                                           int temps,        // Number of slots on java expression stack in use.
-                                           int popframe_args,
-                                           int monitors,     // Number of active monitors.
-                                           int caller_actual_parameters,
-                                           int callee_params,// Number of slots for callee parameters.
-                                           int callee_locals,// Number of slots for locals.
-                                           frame* caller,
-                                           frame* interpreter_frame,
-                                           bool is_top_frame,
-                                           bool is_bottom_frame) {
+// Computes monitor_size and top_frame_size in bytes.
+static void frame_size_helper(int max_stack,
+                              int monitors,
+                              int& monitor_size,
+                              int& top_frame_size) {
+  monitor_size = frame::interpreter_frame_monitor_size_in_bytes() * monitors;
+  top_frame_size = round_to(frame::interpreter_frame_cinterpreterstate_size_in_bytes()
+                            + monitor_size
+                            + max_stack * Interpreter::stackElementSize
+                            + 2 * Interpreter::stackElementSize,
+                            frame::alignment_in_bytes)
+                   + frame::top_ijava_frame_abi_size;
+}
+
+// Returns number of stackElementWords needed for the interpreter frame with the
+// given sections.
+int AbstractInterpreter::size_activation(int max_stack,
+                                         int temps,
+                                         int extra_args,
+                                         int monitors,
+                                         int callee_params,
+                                         int callee_locals,
+                                         bool is_top_frame) {
+  int monitor_size = 0;
+  int top_frame_size = 0;
+  frame_size_helper(max_stack, monitors, monitor_size, top_frame_size);
+
+  int frame_size;
+  if (is_top_frame) {
+    frame_size = top_frame_size;
+  } else {
+    frame_size = round_to(frame::interpreter_frame_cinterpreterstate_size_in_bytes()
+                          + monitor_size
+                          + (temps - callee_params + callee_locals) * Interpreter::stackElementSize
+                          + 2 * Interpreter::stackElementSize,
+                          frame::alignment_in_bytes)
+                 + frame::parent_ijava_frame_abi_size;
+    assert(extra_args == 0, "non-zero for top_frame only");
+  }
+
+  return frame_size / Interpreter::stackElementSize;
+}
+
+void AbstractInterpreter::layout_activation(Method* method,
+                                            int temps,        // Number of slots on java expression stack in use.
+                                            int popframe_args,
+                                            int monitors,     // Number of active monitors.
+                                            int caller_actual_parameters,
+                                            int callee_params,// Number of slots for callee parameters.
+                                            int callee_locals,// Number of slots for locals.
+                                            frame* caller,
+                                            frame* interpreter_frame,
+                                            bool is_top_frame,
+                                            bool is_bottom_frame) {
 
   // NOTE this code must exactly mimic what
   // InterpreterGenerator::generate_compute_interpreter_state() does
@@ -2967,86 +3010,64 @@
   // both the abi scratch area and a place to hold a result from a
   // callee on its way to the callers stack.
 
-  int monitor_size = frame::interpreter_frame_monitor_size_in_bytes() * monitors;
-  int frame_size;
-  int top_frame_size = round_to(frame::interpreter_frame_cinterpreterstate_size_in_bytes()
-                                + monitor_size
-                                + (method->max_stack() *Interpreter::stackElementWords * BytesPerWord)
-                                + 2*BytesPerWord,
-                                frame::alignment_in_bytes)
-                      + frame::top_ijava_frame_abi_size;
-  if (is_top_frame) {
-    frame_size = top_frame_size;
+  int monitor_size = 0;
+  int top_frame_size = 0;
+  frame_size_helper(method->max_stack(), monitors, monitor_size, top_frame_size);
+
+  intptr_t sp = (intptr_t)interpreter_frame->sp();
+  intptr_t fp = *(intptr_t *)sp;
+  assert(fp == (intptr_t)caller->sp(), "fp must match");
+  interpreterState cur_state =
+    (interpreterState)(fp - frame::interpreter_frame_cinterpreterstate_size_in_bytes());
+
+  // Now fill in the interpreterState object.
+
+  intptr_t* locals;
+  if (caller->is_interpreted_frame()) {
+    // Locals must agree with the caller because it will be used to set the
+    // caller's tos when we return.
+    interpreterState prev  = caller->get_interpreterState();
+    // Calculate start of "locals" for MH calls.  For MH calls, the
+    // current method() (= MH target) and prev->callee() (=
+    // MH.invoke*()) are different and especially have different
+    // signatures. To pop the argumentsof the caller, we must use
+    // the prev->callee()->size_of_arguments() because that's what
+    // the caller actually pushed.  Currently, for synthetic MH
+    // calls (deoptimized from inlined MH calls), detected by
+    // is_method_handle_invoke(), we use the callee's arguments
+    // because here, the caller's and callee's signature match.
+    if (true /*!caller->is_at_mh_callsite()*/) {
+      locals = prev->stack() + method->size_of_parameters();
+    } else {
+      // Normal MH call.
+      locals = prev->stack() + prev->callee()->size_of_parameters();
+    }
   } else {
-    frame_size = round_to(frame::interpreter_frame_cinterpreterstate_size_in_bytes()
-                          + monitor_size
-                          + ((temps - callee_params + callee_locals) *
-                             Interpreter::stackElementWords * BytesPerWord)
-                          + 2*BytesPerWord,
-                          frame::alignment_in_bytes)
-                 + frame::parent_ijava_frame_abi_size;
-    assert(popframe_args==0, "non-zero for top_frame only");
+    bool is_deopted;
+    locals = (intptr_t*) (fp + ((method->max_locals() - 1) * BytesPerWord) +
+                          frame::parent_ijava_frame_abi_size);
   }
 
-  // If we actually have a frame to layout we must now fill in all the pieces.
-  if (interpreter_frame != NULL) {
-
-    intptr_t sp = (intptr_t)interpreter_frame->sp();
-    intptr_t fp = *(intptr_t *)sp;
-    assert(fp == (intptr_t)caller->sp(), "fp must match");
-    interpreterState cur_state =
-      (interpreterState)(fp - frame::interpreter_frame_cinterpreterstate_size_in_bytes());
-
-    // Now fill in the interpreterState object.
-
-    intptr_t* locals;
-    if (caller->is_interpreted_frame()) {
-      // Locals must agree with the caller because it will be used to set the
-      // caller's tos when we return.
-      interpreterState prev  = caller->get_interpreterState();
-      // Calculate start of "locals" for MH calls.  For MH calls, the
-      // current method() (= MH target) and prev->callee() (=
-      // MH.invoke*()) are different and especially have different
-      // signatures. To pop the argumentsof the caller, we must use
-      // the prev->callee()->size_of_arguments() because that's what
-      // the caller actually pushed.  Currently, for synthetic MH
-      // calls (deoptimized from inlined MH calls), detected by
-      // is_method_handle_invoke(), we use the callee's arguments
-      // because here, the caller's and callee's signature match.
-      if (true /*!caller->is_at_mh_callsite()*/) {
-        locals = prev->stack() + method->size_of_parameters();
-      } else {
-        // Normal MH call.
-        locals = prev->stack() + prev->callee()->size_of_parameters();
-      }
-    } else {
-      bool is_deopted;
-      locals = (intptr_t*) (fp + ((method->max_locals() - 1) * BytesPerWord) +
-                            frame::parent_ijava_frame_abi_size);
-    }
-
-    intptr_t* monitor_base = (intptr_t*) cur_state;
-    intptr_t* stack_base   = (intptr_t*) ((intptr_t) monitor_base - monitor_size);
-
-    // Provide pop_frame capability on PPC64, add popframe_args.
-    // +1 because stack is always prepushed.
-    intptr_t* stack = (intptr_t*) ((intptr_t) stack_base - (temps + popframe_args + 1) * BytesPerWord);
-
-    BytecodeInterpreter::layout_interpreterState(cur_state,
-                                                 caller,
-                                                 interpreter_frame,
-                                                 method,
-                                                 locals,
-                                                 stack,
-                                                 stack_base,
-                                                 monitor_base,
-                                                 (intptr_t*)(((intptr_t)fp)-top_frame_size),
-                                                 is_top_frame);
-
-    BytecodeInterpreter::pd_layout_interpreterState(cur_state, interpreter_return_address,
-                                                    interpreter_frame->fp());
-  }
-  return frame_size/BytesPerWord;
+  intptr_t* monitor_base = (intptr_t*) cur_state;
+  intptr_t* stack_base   = (intptr_t*) ((intptr_t) monitor_base - monitor_size);
+
+  // Provide pop_frame capability on PPC64, add popframe_args.
+  // +1 because stack is always prepushed.
+  intptr_t* stack = (intptr_t*) ((intptr_t) stack_base - (temps + popframe_args + 1) * BytesPerWord);
+
+  BytecodeInterpreter::layout_interpreterState(cur_state,
+                                               caller,
+                                               interpreter_frame,
+                                               method,
+                                               locals,
+                                               stack,
+                                               stack_base,
+                                               monitor_base,
+                                               (intptr_t*)(((intptr_t)fp) - top_frame_size),
+                                               is_top_frame);
+
+  BytecodeInterpreter::pd_layout_interpreterState(cur_state, interpreter_return_address,
+                                                  interpreter_frame->fp());
 }
 
 #endif // CC_INTERP

--- a/hotspot/src/cpu/ppc/vm/ppc.ad	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/cpu/ppc/vm/ppc.ad	Tue Apr 01 09:36:49 2014 +0200
@@ -1,6 +1,6 @@
 //
-// Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
-// Copyright 2012, 2013 SAP AG. All rights reserved.
+// Copyright (c) 2011, 2014, Oracle and/or its affiliates. All rights reserved.
+// Copyright 2012, 2014 SAP AG. All rights reserved.
 // DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 //
 // This code is free software; you can redistribute it and/or modify it
@@ -1362,8 +1362,8 @@
   Compile* C = ra_->C;
   MacroAssembler _masm(&cbuf);
 
-  const long framesize = ((long)C->frame_slots()) << LogBytesPerInt;
-  assert(framesize%(2*wordSize) == 0, "must preserve 2*wordSize alignment");
+  const long framesize = C->frame_size_in_bytes();
+  assert(framesize % (2 * wordSize) == 0, "must preserve 2*wordSize alignment");
 
   const bool method_is_frameless      = false /* TODO: PPC port C->is_frameless_method()*/;
 
@@ -1388,19 +1388,22 @@
   // careful, because some VM calls (such as call site linkage) can
   // use several kilobytes of stack. But the stack safety zone should
   // account for that. See bugs 4446381, 4468289, 4497237.
-  if (C->need_stack_bang(framesize) && UseStackBanging) {
+
+  int bangsize = C->bang_size_in_bytes();
+  assert(bangsize >= framesize || bangsize <= 0, "stack bang size incorrect");
+  if (C->need_stack_bang(bangsize) && UseStackBanging) {
     // Unfortunately we cannot use the function provided in
     // assembler.cpp as we have to emulate the pipes. So I had to
     // insert the code of generate_stack_overflow_check(), see
     // assembler.cpp for some illuminative comments.
     const int page_size = os::vm_page_size();
-    int bang_end = StackShadowPages*page_size;
+    int bang_end = StackShadowPages * page_size;
 
     // This is how far the previous frame's stack banging extended.
     const int bang_end_safe = bang_end;
 
-    if (framesize > page_size) {
-      bang_end += framesize;
+    if (bangsize > page_size) {
+      bang_end += bangsize;
     }
 
     int bang_offset = bang_end_safe;
@@ -1446,7 +1449,7 @@
 
   unsigned int bytes = (unsigned int)framesize;
   long offset = Assembler::align_addr(bytes, frame::alignment_in_bytes);
-  ciMethod *currMethod = C -> method();
+  ciMethod *currMethod = C->method();
 
   // Optimized version for most common case.
   if (UsePower6SchedulerPPC64 &&

--- a/hotspot/src/cpu/ppc/vm/templateInterpreter_ppc.cpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/cpu/ppc/vm/templateInterpreter_ppc.cpp	Tue Apr 01 09:36:49 2014 +0200
@@ -1334,21 +1334,42 @@
 int AbstractInterpreter::size_top_interpreter_activation(Method* method) {
   const int max_alignment_size = 2;
   const int abi_scratch = frame::abi_reg_args_size;
-  return method->max_locals() + method->max_stack() + frame::interpreter_frame_monitor_size() + max_alignment_size + abi_scratch;
+  return method->max_locals() + method->max_stack() +
+         frame::interpreter_frame_monitor_size() + max_alignment_size + abi_scratch;
 }
 
-// Fills a sceletal interpreter frame generated during deoptimizations
-// and returns the frame size in slots.
+// Returns number of stackElementWords needed for the interpreter frame with the
+// given sections.
+// This overestimates the stack by one slot in case of alignments.
+int AbstractInterpreter::size_activation(int max_stack,
+                                         int temps,
+                                         int extra_args,
+                                         int monitors,
+                                         int callee_params,
+                                         int callee_locals,
+                                         bool is_top_frame) {
+  // Note: This calculation must exactly parallel the frame setup
+  // in AbstractInterpreterGenerator::generate_method_entry.
+  assert(Interpreter::stackElementWords == 1, "sanity");
+  const int max_alignment_space = StackAlignmentInBytes / Interpreter::stackElementSize;
+  const int abi_scratch = is_top_frame ? (frame::abi_reg_args_size / Interpreter::stackElementSize) :
+                                         (frame::abi_minframe_size / Interpreter::stackElementSize);
+  const int size =
+    max_stack                                                +
+    (callee_locals - callee_params)                          +
+    monitors * frame::interpreter_frame_monitor_size()       +
+    max_alignment_space                                      +
+    abi_scratch                                              +
+    frame::ijava_state_size / Interpreter::stackElementSize;
+
+  // Fixed size of an interpreter frame, align to 16-byte.
+  return (size & -2);
+}
+
+// Fills a sceletal interpreter frame generated during deoptimizations.
 //
 // Parameters:
 //
-// interpreter_frame == NULL:
-//   Only calculate the size of an interpreter activation, no actual layout.
-//   Note: This calculation must exactly parallel the frame setup
-//   in TemplateInterpreter::generate_normal_entry. But it does not
-//   account for the SP alignment, that might further enhance the
-//   frame size, depending on FP.
-//
 // interpreter_frame != NULL:
 //   set up the method, locals, and monitors.
 //   The frame interpreter_frame, if not NULL, is guaranteed to be the
@@ -1365,59 +1386,41 @@
 //   the arguments off advance the esp by dummy popframe_extra_args slots.
 //   Popping off those will establish the stack layout as it was before the call.
 //
-int AbstractInterpreter::layout_activation(Method* method,
-                                           int tempcount,
-                                           int popframe_extra_args,
-                                           int moncount,
-                                           int caller_actual_parameters,
-                                           int callee_param_count,
-                                           int callee_locals,
-                                           frame* caller,
-                                           frame* interpreter_frame,
-                                           bool is_top_frame,
-                                           bool is_bottom_frame) {
+void AbstractInterpreter::layout_activation(Method* method,
+                                            int tempcount,
+                                            int popframe_extra_args,
+                                            int moncount,
+                                            int caller_actual_parameters,
+                                            int callee_param_count,
+                                            int callee_locals_count,
+                                            frame* caller,
+                                            frame* interpreter_frame,
+                                            bool is_top_frame,
+                                            bool is_bottom_frame) {
 
-  const int max_alignment_space = 2;
   const int abi_scratch = is_top_frame ? (frame::abi_reg_args_size / Interpreter::stackElementSize) :
-                                         (frame::abi_minframe_size / Interpreter::stackElementSize) ;
-  const int conservative_framesize_in_slots =
-    method->max_stack() + callee_locals - callee_param_count +
-    (moncount * frame::interpreter_frame_monitor_size()) + max_alignment_space +
-    abi_scratch + frame::ijava_state_size / Interpreter::stackElementSize;
-
-  assert(!is_top_frame || conservative_framesize_in_slots * 8 > frame::abi_reg_args_size + frame::ijava_state_size, "frame too small");
+                                         (frame::abi_minframe_size / Interpreter::stackElementSize);
 
-  if (interpreter_frame == NULL) {
-    // Since we don't know the exact alignment, we return the conservative size.
-    return (conservative_framesize_in_slots & -2);
-  } else {
-    // Now we know our caller, calc the exact frame layout and size.
-    intptr_t* locals_base  = (caller->is_interpreted_frame()) ?
-      caller->interpreter_frame_esp() + caller_actual_parameters :
-      caller->sp() + method->max_locals() - 1 + (frame::abi_minframe_size / Interpreter::stackElementSize) ;
+  intptr_t* locals_base  = (caller->is_interpreted_frame()) ?
+    caller->interpreter_frame_esp() + caller_actual_parameters :
+    caller->sp() + method->max_locals() - 1 + (frame::abi_minframe_size / Interpreter::stackElementSize) ;
 
-    intptr_t* monitor_base = caller->sp() - frame::ijava_state_size / Interpreter::stackElementSize ;
-    intptr_t* monitor      = monitor_base - (moncount * frame::interpreter_frame_monitor_size());
-    intptr_t* esp_base     = monitor - 1;
-    intptr_t* esp          = esp_base - tempcount - popframe_extra_args;
-    intptr_t* sp           = (intptr_t *) (((intptr_t) (esp_base- callee_locals + callee_param_count - method->max_stack()- abi_scratch)) & -StackAlignmentInBytes);
-    intptr_t* sender_sp    = caller->sp() + (frame::abi_minframe_size - frame::abi_reg_args_size) / Interpreter::stackElementSize;
-    intptr_t* top_frame_sp = is_top_frame ? sp : sp + (frame::abi_minframe_size - frame::abi_reg_args_size) / Interpreter::stackElementSize;
+  intptr_t* monitor_base = caller->sp() - frame::ijava_state_size / Interpreter::stackElementSize ;
+  intptr_t* monitor      = monitor_base - (moncount * frame::interpreter_frame_monitor_size());
+  intptr_t* esp_base     = monitor - 1;
+  intptr_t* esp          = esp_base - tempcount - popframe_extra_args;
+  intptr_t* sp           = (intptr_t *) (((intptr_t) (esp_base - callee_locals_count + callee_param_count - method->max_stack()- abi_scratch)) & -StackAlignmentInBytes);
+  intptr_t* sender_sp    = caller->sp() + (frame::abi_minframe_size - frame::abi_reg_args_size) / Interpreter::stackElementSize;
+  intptr_t* top_frame_sp = is_top_frame ? sp : sp + (frame::abi_minframe_size - frame::abi_reg_args_size) / Interpreter::stackElementSize;
 
-    interpreter_frame->interpreter_frame_set_method(method);
-    interpreter_frame->interpreter_frame_set_locals(locals_base);
-    interpreter_frame->interpreter_frame_set_cpcache(method->constants()->cache());
-    interpreter_frame->interpreter_frame_set_esp(esp);
-    interpreter_frame->interpreter_frame_set_monitor_end((BasicObjectLock *)monitor);
-    interpreter_frame->interpreter_frame_set_top_frame_sp(top_frame_sp);
-    if (!is_bottom_frame) {
-      interpreter_frame->interpreter_frame_set_sender_sp(sender_sp);
-    }
-
-    int framesize_in_slots = caller->sp() - sp;
-    assert(!is_top_frame ||framesize_in_slots >= (frame::abi_reg_args_size / Interpreter::stackElementSize) + frame::ijava_state_size / Interpreter::stackElementSize, "frame too small");
-    assert(framesize_in_slots <= conservative_framesize_in_slots, "exact frame size must be smaller than the convervative size!");
-    return framesize_in_slots;
+  interpreter_frame->interpreter_frame_set_method(method);
+  interpreter_frame->interpreter_frame_set_locals(locals_base);
+  interpreter_frame->interpreter_frame_set_cpcache(method->constants()->cache());
+  interpreter_frame->interpreter_frame_set_esp(esp);
+  interpreter_frame->interpreter_frame_set_monitor_end((BasicObjectLock *)monitor);
+  interpreter_frame->interpreter_frame_set_top_frame_sp(top_frame_sp);
+  if (!is_bottom_frame) {
+    interpreter_frame->interpreter_frame_set_sender_sp(sender_sp);
   }
 }
 

--- a/hotspot/src/cpu/sparc/vm/c1_LIRAssembler_sparc.cpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/cpu/sparc/vm/c1_LIRAssembler_sparc.cpp	Tue Apr 01 09:36:49 2014 +0200
@@ -152,7 +152,7 @@
 }
 
 
-int LIR_Assembler::initial_frame_size_in_bytes() {
+int LIR_Assembler::initial_frame_size_in_bytes() const {
   return in_bytes(frame_map()->framesize_in_bytes());
 }
 
@@ -182,7 +182,7 @@
   int number_of_locks = entry_state->locks_size();
 
   // Create a frame for the compiled activation.
-  __ build_frame(initial_frame_size_in_bytes());
+  __ build_frame(initial_frame_size_in_bytes(), bang_size_in_bytes());
 
   // OSR buffer is
   //

--- a/hotspot/src/cpu/sparc/vm/c1_MacroAssembler_sparc.cpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/cpu/sparc/vm/c1_MacroAssembler_sparc.cpp	Tue Apr 01 09:36:49 2014 +0200
@@ -55,9 +55,9 @@
 }
 
 
-void C1_MacroAssembler::build_frame(int frame_size_in_bytes) {
-
-  generate_stack_overflow_check(frame_size_in_bytes);
+void C1_MacroAssembler::build_frame(int frame_size_in_bytes, int bang_size_in_bytes) {
+  assert(bang_size_in_bytes >= frame_size_in_bytes, "stack bang size incorrect");
+  generate_stack_overflow_check(bang_size_in_bytes);
   // Create the frame.
   save_frame_c1(frame_size_in_bytes);
 }

--- a/hotspot/src/cpu/sparc/vm/cppInterpreter_sparc.cpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/cpu/sparc/vm/cppInterpreter_sparc.cpp	Tue Apr 01 09:36:49 2014 +0200
@@ -2099,7 +2099,7 @@
   int monitor_size    = method->is_synchronized() ?
                                 1*frame::interpreter_frame_monitor_size() : 0;
   return size_activation_helper(method->max_locals(), method->max_stack(),
-                                 monitor_size) + call_stub_size;
+                                monitor_size) + call_stub_size;
 }
 
 void BytecodeInterpreter::layout_interpreterState(interpreterState to_fill,
@@ -2183,31 +2183,31 @@
   istate->_last_Java_pc = (intptr_t*) last_Java_pc;
 }
 
-
-int AbstractInterpreter::layout_activation(Method* method,
-                                           int tempcount, // Number of slots on java expression stack in use
-                                           int popframe_extra_args,
-                                           int moncount,  // Number of active monitors
-                                           int caller_actual_parameters,
-                                           int callee_param_size,
-                                           int callee_locals_size,
-                                           frame* caller,
-                                           frame* interpreter_frame,
-                                           bool is_top_frame,
-                                           bool is_bottom_frame) {
+static int frame_size_helper(int max_stack,
+                             int moncount,
+                             int callee_param_size,
+                             int callee_locals_size,
+                             bool is_top_frame,
+                             int& monitor_size,
+                             int& full_frame_words) {
+  int extra_locals_size = callee_locals_size - callee_param_size;
+  monitor_size = (sizeof(BasicObjectLock) * moncount) / wordSize;
+  full_frame_words = size_activation_helper(extra_locals_size, max_stack, monitor_size);
+  int short_frame_words = size_activation_helper(extra_locals_size, max_stack, monitor_size);
+  int frame_words = is_top_frame ? full_frame_words : short_frame_words;
 
-  assert(popframe_extra_args == 0, "NEED TO FIX");
-  // NOTE this code must exactly mimic what InterpreterGenerator::generate_compute_interpreter_state()
-  // does as far as allocating an interpreter frame.
-  // If interpreter_frame!=NULL, set up the method, locals, and monitors.
-  // The frame interpreter_frame, if not NULL, is guaranteed to be the right size,
-  // as determined by a previous call to this method.
-  // It is also guaranteed to be walkable even though it is in a skeletal state
+  return frame_words;
+}
+
+int AbstractInterpreter::size_activation(int max_stack,
+                                         int tempcount,
+                                         int extra_args,
+                                         int moncount,
+                                         int callee_param_size,
+                                         int callee_locals_size,
+                                         bool is_top_frame) {
+  assert(extra_args == 0, "NEED TO FIX");
   // NOTE: return size is in words not bytes
-  // NOTE: tempcount is the current size of the java expression stack. For top most
-  //       frames we will allocate a full sized expression stack and not the curback
-  //       version that non-top frames have.
-
   // Calculate the amount our frame will be adjust by the callee. For top frame
   // this is zero.
 
@@ -2216,87 +2216,108 @@
   // to it. So it ignores last_frame_adjust value. Seems suspicious as far
   // as getting sender_sp correct.
 
-  int extra_locals_size = callee_locals_size - callee_param_size;
-  int monitor_size = (sizeof(BasicObjectLock) * moncount) / wordSize;
-  int full_frame_words = size_activation_helper(extra_locals_size, method->max_stack(), monitor_size);
-  int short_frame_words = size_activation_helper(extra_locals_size, method->max_stack(), monitor_size);
-  int frame_words = is_top_frame ? full_frame_words : short_frame_words;
+  int unused_monitor_size = 0;
+  int unused_full_frame_words = 0;
+  return frame_size_helper(max_stack, moncount, callee_param_size, callee_locals_size, is_top_frame,
+                           unused_monitor_size, unused_full_frame_words);
+}
+void AbstractInterpreter::layout_activation(Method* method,
+                                            int tempcount, // Number of slots on java expression stack in use
+                                            int popframe_extra_args,
+                                            int moncount,  // Number of active monitors
+                                            int caller_actual_parameters,
+                                            int callee_param_size,
+                                            int callee_locals_size,
+                                            frame* caller,
+                                            frame* interpreter_frame,
+                                            bool is_top_frame,
+                                            bool is_bottom_frame) {
+  assert(popframe_extra_args == 0, "NEED TO FIX");
+  // NOTE this code must exactly mimic what InterpreterGenerator::generate_compute_interpreter_state()
+  // does as far as allocating an interpreter frame.
+  // Set up the method, locals, and monitors.
+  // The frame interpreter_frame is guaranteed to be the right size,
+  // as determined by a previous call to the size_activation() method.
+  // It is also guaranteed to be walkable even though it is in a skeletal state
+  // NOTE: tempcount is the current size of the java expression stack. For top most
+  //       frames we will allocate a full sized expression stack and not the curback
+  //       version that non-top frames have.
 
+  int monitor_size = 0;
+  int full_frame_words = 0;
+  int frame_words = frame_size_helper(method->max_stack(), moncount, callee_param_size, callee_locals_size,
+                                      is_top_frame, monitor_size, full_frame_words);
 
   /*
-    if we actually have a frame to layout we must now fill in all the pieces. This means both
+    We must now fill in all the pieces of the frame. This means both
     the interpreterState and the registers.
   */
-  if (interpreter_frame != NULL) {
 
-    // MUCHO HACK
+  // MUCHO HACK
 
-    intptr_t* frame_bottom = interpreter_frame->sp() - (full_frame_words - frame_words);
-    // 'interpreter_frame->sp()' is unbiased while 'frame_bottom' must be a biased value in 64bit mode.
-    assert(((intptr_t)frame_bottom & 0xf) == 0, "SP biased in layout_activation");
-    frame_bottom = (intptr_t*)((intptr_t)frame_bottom - STACK_BIAS);
+  intptr_t* frame_bottom = interpreter_frame->sp() - (full_frame_words - frame_words);
+  // 'interpreter_frame->sp()' is unbiased while 'frame_bottom' must be a biased value in 64bit mode.
+  assert(((intptr_t)frame_bottom & 0xf) == 0, "SP biased in layout_activation");
+  frame_bottom = (intptr_t*)((intptr_t)frame_bottom - STACK_BIAS);
 
-    /* Now fillin the interpreterState object */
+  /* Now fillin the interpreterState object */
 
-    interpreterState cur_state = (interpreterState) ((intptr_t)interpreter_frame->fp() -  sizeof(BytecodeInterpreter));
+  interpreterState cur_state = (interpreterState) ((intptr_t)interpreter_frame->fp() -  sizeof(BytecodeInterpreter));
 
 
-    intptr_t* locals;
+  intptr_t* locals;
+
+  // Calculate the postion of locals[0]. This is painful because of
+  // stack alignment (same as ia64). The problem is that we can
+  // not compute the location of locals from fp(). fp() will account
+  // for the extra locals but it also accounts for aligning the stack
+  // and we can't determine if the locals[0] was misaligned but max_locals
+  // was enough to have the
+  // calculate postion of locals. fp already accounts for extra locals.
+  // +2 for the static long no_params() issue.
 
-    // Calculate the postion of locals[0]. This is painful because of
-    // stack alignment (same as ia64). The problem is that we can
-    // not compute the location of locals from fp(). fp() will account
-    // for the extra locals but it also accounts for aligning the stack
-    // and we can't determine if the locals[0] was misaligned but max_locals
-    // was enough to have the
-    // calculate postion of locals. fp already accounts for extra locals.
-    // +2 for the static long no_params() issue.
+  if (caller->is_interpreted_frame()) {
+    // locals must agree with the caller because it will be used to set the
+    // caller's tos when we return.
+    interpreterState prev  = caller->get_interpreterState();
+    // stack() is prepushed.
+    locals = prev->stack() + method->size_of_parameters();
+  } else {
+    // Lay out locals block in the caller adjacent to the register window save area.
+    //
+    // Compiled frames do not allocate a varargs area which is why this if
+    // statement is needed.
+    //
+    intptr_t* fp = interpreter_frame->fp();
+    int local_words = method->max_locals() * Interpreter::stackElementWords;
 
-    if (caller->is_interpreted_frame()) {
-      // locals must agree with the caller because it will be used to set the
-      // caller's tos when we return.
-      interpreterState prev  = caller->get_interpreterState();
-      // stack() is prepushed.
-      locals = prev->stack() + method->size_of_parameters();
+    if (caller->is_compiled_frame()) {
+      locals = fp + frame::register_save_words + local_words - 1;
     } else {
-      // Lay out locals block in the caller adjacent to the register window save area.
-      //
-      // Compiled frames do not allocate a varargs area which is why this if
-      // statement is needed.
-      //
-      intptr_t* fp = interpreter_frame->fp();
-      int local_words = method->max_locals() * Interpreter::stackElementWords;
+      locals = fp + frame::memory_parameter_word_sp_offset + local_words - 1;
+    }
 
-      if (caller->is_compiled_frame()) {
-        locals = fp + frame::register_save_words + local_words - 1;
-      } else {
-        locals = fp + frame::memory_parameter_word_sp_offset + local_words - 1;
-      }
+  }
+  // END MUCHO HACK
 
-    }
-    // END MUCHO HACK
-
-    intptr_t* monitor_base = (intptr_t*) cur_state;
-    intptr_t* stack_base =  monitor_base - monitor_size;
-    /* +1 because stack is always prepushed */
-    intptr_t* stack = stack_base - (tempcount + 1);
+  intptr_t* monitor_base = (intptr_t*) cur_state;
+  intptr_t* stack_base =  monitor_base - monitor_size;
+  /* +1 because stack is always prepushed */
+  intptr_t* stack = stack_base - (tempcount + 1);
 
 
-    BytecodeInterpreter::layout_interpreterState(cur_state,
-                                          caller,
-                                          interpreter_frame,
-                                          method,
-                                          locals,
-                                          stack,
-                                          stack_base,
-                                          monitor_base,
-                                          frame_bottom,
-                                          is_top_frame);
+  BytecodeInterpreter::layout_interpreterState(cur_state,
+                                               caller,
+                                               interpreter_frame,
+                                               method,
+                                               locals,
+                                               stack,
+                                               stack_base,
+                                               monitor_base,
+                                               frame_bottom,
+                                               is_top_frame);
 
-    BytecodeInterpreter::pd_layout_interpreterState(cur_state, interpreter_return_address, interpreter_frame->fp());
-
-  }
-  return frame_words;
+  BytecodeInterpreter::pd_layout_interpreterState(cur_state, interpreter_return_address, interpreter_frame->fp());
 }
 
 #endif // CC_INTERP

--- a/hotspot/src/cpu/sparc/vm/macroAssembler_sparc.cpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/cpu/sparc/vm/macroAssembler_sparc.cpp	Tue Apr 01 09:36:49 2014 +0200
@@ -3531,7 +3531,7 @@
   // was post-decremented.)  Skip this address by starting at i=1, and
   // touch a few more pages below.  N.B.  It is important to touch all
   // the way down to and including i=StackShadowPages.
-  for (int i = 1; i <= StackShadowPages; i++) {
+  for (int i = 1; i < StackShadowPages; i++) {
     set((-i*offset)+STACK_BIAS, Rscratch);
     st(G0, Rtsp, Rscratch);
   }

--- a/hotspot/src/cpu/sparc/vm/sharedRuntime_sparc.cpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/cpu/sparc/vm/sharedRuntime_sparc.cpp	Tue Apr 01 09:36:49 2014 +0200
@@ -3355,13 +3355,16 @@
   Register        O4array_size       = O4;
   Label           loop;
 
-  // Before we make new frames, check to see if stack is available.
-  // Do this after the caller's return address is on top of stack
+#ifdef ASSERT
+  // Compilers generate code that bang the stack by as much as the
+  // interpreter would need. So this stack banging should never
+  // trigger a fault. Verify that it does not on non product builds.
   if (UseStackBanging) {
     // Get total frame size for interpreted frames
     __ ld(O2UnrollBlock, Deoptimization::UnrollBlock::total_frame_sizes_offset_in_bytes(), O4);
     __ bang_stack_size(O4, O3, G3_scratch);
   }
+#endif
 
   __ ld(O2UnrollBlock, Deoptimization::UnrollBlock::number_of_frames_offset_in_bytes(), O4array_size);
   __ ld_ptr(O2UnrollBlock, Deoptimization::UnrollBlock::frame_pcs_offset_in_bytes(), G3pcs);
@@ -3409,9 +3412,11 @@
   ResourceMark rm;
   // setup code generation tools
   int pad = VerifyThread ? 512 : 0;// Extra slop space for more verify code
+#ifdef ASSERT
   if (UseStackBanging) {
     pad += StackShadowPages*16 + 32;
   }
+#endif
 #ifdef _LP64
   CodeBuffer buffer("deopt_blob", 2100+pad, 512);
 #else
@@ -3632,9 +3637,11 @@
   ResourceMark rm;
   // setup code generation tools
   int pad = VerifyThread ? 512 : 0;
+#ifdef ASSERT
   if (UseStackBanging) {
     pad += StackShadowPages*16 + 32;
   }
+#endif
 #ifdef _LP64
   CodeBuffer buffer("uncommon_trap_blob", 2700+pad, 512);
 #else

--- a/hotspot/src/cpu/sparc/vm/sparc.ad	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/cpu/sparc/vm/sparc.ad	Tue Apr 01 09:36:49 2014 +0200
@@ -1193,15 +1193,16 @@
     st->print_cr("Verify_Thread"); st->print("\t");
   }
 
-  size_t framesize = C->frame_slots() << LogBytesPerInt;
+  size_t framesize = C->frame_size_in_bytes();
+  int bangsize = C->bang_size_in_bytes();
 
   // Calls to C2R adapters often do not accept exceptional returns.
   // We require that their callers must bang for them.  But be careful, because
   // some VM calls (such as call site linkage) can use several kilobytes of
   // stack.  But the stack safety zone should account for that.
   // See bugs 4446381, 4468289, 4497237.
-  if (C->need_stack_bang(framesize)) {
-    st->print_cr("! stack bang"); st->print("\t");
+  if (C->need_stack_bang(bangsize)) {
+    st->print_cr("! stack bang (%d bytes)", bangsize); st->print("\t");
   }
 
   if (Assembler::is_simm13(-framesize)) {
@@ -1225,17 +1226,18 @@
 
   __ verify_thread();
 
-  size_t framesize = C->frame_slots() << LogBytesPerInt;
+  size_t framesize = C->frame_size_in_bytes();
   assert(framesize >= 16*wordSize, "must have room for reg. save area");
   assert(framesize%(2*wordSize) == 0, "must preserve 2*wordSize alignment");
+  int bangsize = C->bang_size_in_bytes();
 
   // Calls to C2R adapters often do not accept exceptional returns.
   // We require that their callers must bang for them.  But be careful, because
   // some VM calls (such as call site linkage) can use several kilobytes of
   // stack.  But the stack safety zone should account for that.
   // See bugs 4446381, 4468289, 4497237.
-  if (C->need_stack_bang(framesize)) {
-    __ generate_stack_overflow_check(framesize);
+  if (C->need_stack_bang(bangsize)) {
+    __ generate_stack_overflow_check(bangsize);
   }
 
   if (Assembler::is_simm13(-framesize)) {
@@ -2547,7 +2549,7 @@
   enc_class call_epilog %{
     if( VerifyStackAtCalls ) {
       MacroAssembler _masm(&cbuf);
-      int framesize = ra_->C->frame_slots() << LogBytesPerInt;
+      int framesize = ra_->C->frame_size_in_bytes();
       Register temp_reg = G3;
       __ add(SP, framesize, temp_reg);
       __ cmp(temp_reg, FP);

--- a/hotspot/src/cpu/sparc/vm/templateInterpreter_sparc.cpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/cpu/sparc/vm/templateInterpreter_sparc.cpp	Tue Apr 01 09:36:49 2014 +0200
@@ -1564,37 +1564,23 @@
   int monitor_size    = method->is_synchronized() ?
                                 1*frame::interpreter_frame_monitor_size() : 0;
   return size_activation_helper(method->max_locals(), method->max_stack(),
-                                 monitor_size) + call_stub_size;
+                                monitor_size) + call_stub_size;
 }
 
-int AbstractInterpreter::layout_activation(Method* method,
-                                           int tempcount,
-                                           int popframe_extra_args,
-                                           int moncount,
-                                           int caller_actual_parameters,
-                                           int callee_param_count,
-                                           int callee_local_count,
-                                           frame* caller,
-                                           frame* interpreter_frame,
-                                           bool is_top_frame,
-                                           bool is_bottom_frame) {
+int AbstractInterpreter::size_activation(int max_stack,
+                                         int temps,
+                                         int extra_args,
+                                         int monitors,
+                                         int callee_params,
+                                         int callee_locals,
+                                         bool is_top_frame) {
   // Note: This calculation must exactly parallel the frame setup
   // in InterpreterGenerator::generate_fixed_frame.
-  // If f!=NULL, set up the following variables:
-  //   - Lmethod
-  //   - Llocals
-  //   - Lmonitors (to the indicated number of monitors)
-  //   - Lesp (to the indicated number of temps)
-  // The frame f (if not NULL) on entry is a description of the caller of the frame
-  // we are about to layout. We are guaranteed that we will be able to fill in a
-  // new interpreter frame as its callee (i.e. the stack space is allocated and
-  // the amount was determined by an earlier call to this method with f == NULL).
-  // On return f (if not NULL) while describe the interpreter frame we just layed out.
 
-  int monitor_size           = moncount * frame::interpreter_frame_monitor_size();
-  int rounded_vm_local_words = round_to(frame::interpreter_frame_vm_local_words,WordsPerLong);
+  int monitor_size           = monitors * frame::interpreter_frame_monitor_size();
 
   assert(monitor_size == round_to(monitor_size, WordsPerLong), "must align");
+
   //
   // Note: if you look closely this appears to be doing something much different
   // than generate_fixed_frame. What is happening is this. On sparc we have to do
@@ -1619,146 +1605,171 @@
   // there is no sense in messing working code.
   //
 
-  int rounded_cls = round_to((callee_local_count - callee_param_count), WordsPerLong);
+  int rounded_cls = round_to((callee_locals - callee_params), WordsPerLong);
   assert(rounded_cls == round_to(rounded_cls, WordsPerLong), "must align");
 
-  int raw_frame_size = size_activation_helper(rounded_cls, method->max_stack(),
-                                              monitor_size);
+  int raw_frame_size = size_activation_helper(rounded_cls, max_stack, monitor_size);
 
-  if (interpreter_frame != NULL) {
-    // The skeleton frame must already look like an interpreter frame
-    // even if not fully filled out.
-    assert(interpreter_frame->is_interpreted_frame(), "Must be interpreted frame");
-
-    intptr_t* fp = interpreter_frame->fp();
+  return raw_frame_size;
+}
 
-    JavaThread* thread = JavaThread::current();
-    RegisterMap map(thread, false);
-    // More verification that skeleton frame is properly walkable
-    assert(fp == caller->sp(), "fp must match");
-
-    intptr_t* montop     = fp - rounded_vm_local_words;
+void AbstractInterpreter::layout_activation(Method* method,
+                                            int tempcount,
+                                            int popframe_extra_args,
+                                            int moncount,
+                                            int caller_actual_parameters,
+                                            int callee_param_count,
+                                            int callee_local_count,
+                                            frame* caller,
+                                            frame* interpreter_frame,
+                                            bool is_top_frame,
+                                            bool is_bottom_frame) {
+  // Set up the following variables:
+  //   - Lmethod
+  //   - Llocals
+  //   - Lmonitors (to the indicated number of monitors)
+  //   - Lesp (to the indicated number of temps)
+  // The frame caller on entry is a description of the caller of the
+  // frame we are about to layout. We are guaranteed that we will be
+  // able to fill in a new interpreter frame as its callee (i.e. the
+  // stack space is allocated and the amount was determined by an
+  // earlier call to the size_activation() method).  On return caller
+  // while describe the interpreter frame we just layed out.
 
-    // preallocate monitors (cf. __ add_monitor_to_stack)
-    intptr_t* monitors = montop - monitor_size;
+  // The skeleton frame must already look like an interpreter frame
+  // even if not fully filled out.
+  assert(interpreter_frame->is_interpreted_frame(), "Must be interpreted frame");
+
+  int rounded_vm_local_words = round_to(frame::interpreter_frame_vm_local_words,WordsPerLong);
+  int monitor_size           = moncount * frame::interpreter_frame_monitor_size();
+  assert(monitor_size == round_to(monitor_size, WordsPerLong), "must align");
+
+  intptr_t* fp = interpreter_frame->fp();
 
-    // preallocate stack space
-    intptr_t*  esp = monitors - 1 -
-                     (tempcount * Interpreter::stackElementWords) -
-                     popframe_extra_args;
+  JavaThread* thread = JavaThread::current();
+  RegisterMap map(thread, false);
+  // More verification that skeleton frame is properly walkable
+  assert(fp == caller->sp(), "fp must match");
+
+  intptr_t* montop     = fp - rounded_vm_local_words;
+
+  // preallocate monitors (cf. __ add_monitor_to_stack)
+  intptr_t* monitors = montop - monitor_size;
+
+  // preallocate stack space
+  intptr_t*  esp = monitors - 1 -
+    (tempcount * Interpreter::stackElementWords) -
+    popframe_extra_args;
 
-    int local_words = method->max_locals() * Interpreter::stackElementWords;
-    NEEDS_CLEANUP;
-    intptr_t* locals;
-    if (caller->is_interpreted_frame()) {
-      // Can force the locals area to end up properly overlapping the top of the expression stack.
-      intptr_t* Lesp_ptr = caller->interpreter_frame_tos_address() - 1;
-      // Note that this computation means we replace size_of_parameters() values from the caller
-      // interpreter frame's expression stack with our argument locals
-      int parm_words  = caller_actual_parameters * Interpreter::stackElementWords;
-      locals = Lesp_ptr + parm_words;
-      int delta = local_words - parm_words;
-      int computed_sp_adjustment = (delta > 0) ? round_to(delta, WordsPerLong) : 0;
-      *interpreter_frame->register_addr(I5_savedSP)    = (intptr_t) (fp + computed_sp_adjustment) - STACK_BIAS;
-      if (!is_bottom_frame) {
-        // Llast_SP is set below for the current frame to SP (with the
-        // extra space for the callee's locals). Here we adjust
-        // Llast_SP for the caller's frame, removing the extra space
-        // for the current method's locals.
-        *caller->register_addr(Llast_SP) = *interpreter_frame->register_addr(I5_savedSP);
-      } else {
-        assert(*caller->register_addr(Llast_SP) >= *interpreter_frame->register_addr(I5_savedSP), "strange Llast_SP");
-      }
+  int local_words = method->max_locals() * Interpreter::stackElementWords;
+  NEEDS_CLEANUP;
+  intptr_t* locals;
+  if (caller->is_interpreted_frame()) {
+    // Can force the locals area to end up properly overlapping the top of the expression stack.
+    intptr_t* Lesp_ptr = caller->interpreter_frame_tos_address() - 1;
+    // Note that this computation means we replace size_of_parameters() values from the caller
+    // interpreter frame's expression stack with our argument locals
+    int parm_words  = caller_actual_parameters * Interpreter::stackElementWords;
+    locals = Lesp_ptr + parm_words;
+    int delta = local_words - parm_words;
+    int computed_sp_adjustment = (delta > 0) ? round_to(delta, WordsPerLong) : 0;
+    *interpreter_frame->register_addr(I5_savedSP)    = (intptr_t) (fp + computed_sp_adjustment) - STACK_BIAS;
+    if (!is_bottom_frame) {
+      // Llast_SP is set below for the current frame to SP (with the
+      // extra space for the callee's locals). Here we adjust
+      // Llast_SP for the caller's frame, removing the extra space
+      // for the current method's locals.
+      *caller->register_addr(Llast_SP) = *interpreter_frame->register_addr(I5_savedSP);
     } else {
-      assert(caller->is_compiled_frame() || caller->is_entry_frame(), "only possible cases");
-      // Don't have Lesp available; lay out locals block in the caller
-      // adjacent to the register window save area.
-      //
-      // Compiled frames do not allocate a varargs area which is why this if
-      // statement is needed.
-      //
-      if (caller->is_compiled_frame()) {
-        locals = fp + frame::register_save_words + local_words - 1;
-      } else {
-        locals = fp + frame::memory_parameter_word_sp_offset + local_words - 1;
-      }
-      if (!caller->is_entry_frame()) {
-        // Caller wants his own SP back
-        int caller_frame_size = caller->cb()->frame_size();
-        *interpreter_frame->register_addr(I5_savedSP) = (intptr_t)(caller->fp() - caller_frame_size) - STACK_BIAS;
+      assert(*caller->register_addr(Llast_SP) >= *interpreter_frame->register_addr(I5_savedSP), "strange Llast_SP");
+    }
+  } else {
+    assert(caller->is_compiled_frame() || caller->is_entry_frame(), "only possible cases");
+    // Don't have Lesp available; lay out locals block in the caller
+    // adjacent to the register window save area.
+    //
+    // Compiled frames do not allocate a varargs area which is why this if
+    // statement is needed.
+    //
+    if (caller->is_compiled_frame()) {
+      locals = fp + frame::register_save_words + local_words - 1;
+    } else {
+      locals = fp + frame::memory_parameter_word_sp_offset + local_words - 1;
+    }
+    if (!caller->is_entry_frame()) {
+      // Caller wants his own SP back
+      int caller_frame_size = caller->cb()->frame_size();
+      *interpreter_frame->register_addr(I5_savedSP) = (intptr_t)(caller->fp() - caller_frame_size) - STACK_BIAS;
+    }
+  }
+  if (TraceDeoptimization) {
+    if (caller->is_entry_frame()) {
+      // make sure I5_savedSP and the entry frames notion of saved SP
+      // agree.  This assertion duplicate a check in entry frame code
+      // but catches the failure earlier.
+      assert(*caller->register_addr(Lscratch) == *interpreter_frame->register_addr(I5_savedSP),
+             "would change callers SP");
+    }
+    if (caller->is_entry_frame()) {
+      tty->print("entry ");
+    }
+    if (caller->is_compiled_frame()) {
+      tty->print("compiled ");
+      if (caller->is_deoptimized_frame()) {
+        tty->print("(deopt) ");
       }
     }
-    if (TraceDeoptimization) {
-      if (caller->is_entry_frame()) {
-        // make sure I5_savedSP and the entry frames notion of saved SP
-        // agree.  This assertion duplicate a check in entry frame code
-        // but catches the failure earlier.
-        assert(*caller->register_addr(Lscratch) == *interpreter_frame->register_addr(I5_savedSP),
-               "would change callers SP");
-      }
-      if (caller->is_entry_frame()) {
-        tty->print("entry ");
-      }
-      if (caller->is_compiled_frame()) {
-        tty->print("compiled ");
-        if (caller->is_deoptimized_frame()) {
-          tty->print("(deopt) ");
-        }
-      }
-      if (caller->is_interpreted_frame()) {
-        tty->print("interpreted ");
-      }
-      tty->print_cr("caller fp=0x%x sp=0x%x", caller->fp(), caller->sp());
-      tty->print_cr("save area = 0x%x, 0x%x", caller->sp(), caller->sp() + 16);
-      tty->print_cr("save area = 0x%x, 0x%x", caller->fp(), caller->fp() + 16);
-      tty->print_cr("interpreter fp=0x%x sp=0x%x", interpreter_frame->fp(), interpreter_frame->sp());
-      tty->print_cr("save area = 0x%x, 0x%x", interpreter_frame->sp(), interpreter_frame->sp() + 16);
-      tty->print_cr("save area = 0x%x, 0x%x", interpreter_frame->fp(), interpreter_frame->fp() + 16);
-      tty->print_cr("Llocals = 0x%x", locals);
-      tty->print_cr("Lesp = 0x%x", esp);
-      tty->print_cr("Lmonitors = 0x%x", monitors);
+    if (caller->is_interpreted_frame()) {
+      tty->print("interpreted ");
     }
+    tty->print_cr("caller fp=0x%x sp=0x%x", caller->fp(), caller->sp());
+    tty->print_cr("save area = 0x%x, 0x%x", caller->sp(), caller->sp() + 16);
+    tty->print_cr("save area = 0x%x, 0x%x", caller->fp(), caller->fp() + 16);
+    tty->print_cr("interpreter fp=0x%x sp=0x%x", interpreter_frame->fp(), interpreter_frame->sp());
+    tty->print_cr("save area = 0x%x, 0x%x", interpreter_frame->sp(), interpreter_frame->sp() + 16);
+    tty->print_cr("save area = 0x%x, 0x%x", interpreter_frame->fp(), interpreter_frame->fp() + 16);
+    tty->print_cr("Llocals = 0x%x", locals);
+    tty->print_cr("Lesp = 0x%x", esp);
+    tty->print_cr("Lmonitors = 0x%x", monitors);
+  }
 
-    if (method->max_locals() > 0) {
-      assert(locals < caller->sp() || locals >= (caller->sp() + 16), "locals in save area");
-      assert(locals < caller->fp() || locals > (caller->fp() + 16), "locals in save area");
-      assert(locals < interpreter_frame->sp() || locals > (interpreter_frame->sp() + 16), "locals in save area");
-      assert(locals < interpreter_frame->fp() || locals >= (interpreter_frame->fp() + 16), "locals in save area");
-    }
+  if (method->max_locals() > 0) {
+    assert(locals < caller->sp() || locals >= (caller->sp() + 16), "locals in save area");
+    assert(locals < caller->fp() || locals > (caller->fp() + 16), "locals in save area");
+    assert(locals < interpreter_frame->sp() || locals > (interpreter_frame->sp() + 16), "locals in save area");
+    assert(locals < interpreter_frame->fp() || locals >= (interpreter_frame->fp() + 16), "locals in save area");
+  }
 #ifdef _LP64
-    assert(*interpreter_frame->register_addr(I5_savedSP) & 1, "must be odd");
+  assert(*interpreter_frame->register_addr(I5_savedSP) & 1, "must be odd");
 #endif
 
-    *interpreter_frame->register_addr(Lmethod)     = (intptr_t) method;
-    *interpreter_frame->register_addr(Llocals)     = (intptr_t) locals;
-    *interpreter_frame->register_addr(Lmonitors)   = (intptr_t) monitors;
-    *interpreter_frame->register_addr(Lesp)        = (intptr_t) esp;
-    // Llast_SP will be same as SP as there is no adapter space
-    *interpreter_frame->register_addr(Llast_SP)    = (intptr_t) interpreter_frame->sp() - STACK_BIAS;
-    *interpreter_frame->register_addr(LcpoolCache) = (intptr_t) method->constants()->cache();
+  *interpreter_frame->register_addr(Lmethod)     = (intptr_t) method;
+  *interpreter_frame->register_addr(Llocals)     = (intptr_t) locals;
+  *interpreter_frame->register_addr(Lmonitors)   = (intptr_t) monitors;
+  *interpreter_frame->register_addr(Lesp)        = (intptr_t) esp;
+  // Llast_SP will be same as SP as there is no adapter space
+  *interpreter_frame->register_addr(Llast_SP)    = (intptr_t) interpreter_frame->sp() - STACK_BIAS;
+  *interpreter_frame->register_addr(LcpoolCache) = (intptr_t) method->constants()->cache();
 #ifdef FAST_DISPATCH
-    *interpreter_frame->register_addr(IdispatchTables) = (intptr_t) Interpreter::dispatch_table();
+  *interpreter_frame->register_addr(IdispatchTables) = (intptr_t) Interpreter::dispatch_table();
 #endif
 
 
 #ifdef ASSERT
-    BasicObjectLock* mp = (BasicObjectLock*)monitors;
-
-    assert(interpreter_frame->interpreter_frame_method() == method, "method matches");
-    assert(interpreter_frame->interpreter_frame_local_at(9) == (intptr_t *)((intptr_t)locals - (9 * Interpreter::stackElementSize)), "locals match");
-    assert(interpreter_frame->interpreter_frame_monitor_end()   == mp, "monitor_end matches");
-    assert(((intptr_t *)interpreter_frame->interpreter_frame_monitor_begin()) == ((intptr_t *)mp)+monitor_size, "monitor_begin matches");
-    assert(interpreter_frame->interpreter_frame_tos_address()-1 == esp, "esp matches");
+  BasicObjectLock* mp = (BasicObjectLock*)monitors;
 
-    // check bounds
-    intptr_t* lo = interpreter_frame->sp() + (frame::memory_parameter_word_sp_offset - 1);
-    intptr_t* hi = interpreter_frame->fp() - rounded_vm_local_words;
-    assert(lo < monitors && montop <= hi, "monitors in bounds");
-    assert(lo <= esp && esp < monitors, "esp in bounds");
+  assert(interpreter_frame->interpreter_frame_method() == method, "method matches");
+  assert(interpreter_frame->interpreter_frame_local_at(9) == (intptr_t *)((intptr_t)locals - (9 * Interpreter::stackElementSize)), "locals match");
+  assert(interpreter_frame->interpreter_frame_monitor_end()   == mp, "monitor_end matches");
+  assert(((intptr_t *)interpreter_frame->interpreter_frame_monitor_begin()) == ((intptr_t *)mp)+monitor_size, "monitor_begin matches");
+  assert(interpreter_frame->interpreter_frame_tos_address()-1 == esp, "esp matches");
+
+  // check bounds
+  intptr_t* lo = interpreter_frame->sp() + (frame::memory_parameter_word_sp_offset - 1);
+  intptr_t* hi = interpreter_frame->fp() - rounded_vm_local_words;
+  assert(lo < monitors && montop <= hi, "monitors in bounds");
+  assert(lo <= esp && esp < monitors, "esp in bounds");
 #endif // ASSERT
-  }
-
-  return raw_frame_size;
 }
 
 //----------------------------------------------------------------------------------------------------

--- a/hotspot/src/cpu/x86/vm/c1_LIRAssembler_x86.cpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/cpu/x86/vm/c1_LIRAssembler_x86.cpp	Tue Apr 01 09:36:49 2014 +0200
@@ -288,7 +288,7 @@
 
   // build frame
   ciMethod* m = compilation()->method();
-  __ build_frame(initial_frame_size_in_bytes());
+  __ build_frame(initial_frame_size_in_bytes(), bang_size_in_bytes());
 
   // OSR buffer is
   //
@@ -376,7 +376,7 @@
 }
 
 // This specifies the rsp decrement needed to build the frame
-int LIR_Assembler::initial_frame_size_in_bytes() {
+int LIR_Assembler::initial_frame_size_in_bytes() const {
   // if rounding, must let FrameMap know!
 
   // The frame_map records size in slots (32bit word)

--- a/hotspot/src/cpu/x86/vm/c1_MacroAssembler_x86.cpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/cpu/x86/vm/c1_MacroAssembler_x86.cpp	Tue Apr 01 09:36:49 2014 +0200
@@ -349,13 +349,14 @@
 }
 
 
-void C1_MacroAssembler::build_frame(int frame_size_in_bytes) {
+void C1_MacroAssembler::build_frame(int frame_size_in_bytes, int bang_size_in_bytes) {
+  assert(bang_size_in_bytes >= frame_size_in_bytes, "stack bang size incorrect");
   // Make sure there is enough stack space for this method's activation.
   // Note that we do this before doing an enter(). This matches the
   // ordering of C2's stack overflow check / rsp decrement and allows
   // the SharedRuntime stack overflow handling to be consistent
   // between the two compilers.
-  generate_stack_overflow_check(frame_size_in_bytes);
+  generate_stack_overflow_check(bang_size_in_bytes);
 
   push(rbp);
 #ifdef TIERED

--- a/hotspot/src/cpu/x86/vm/cppInterpreter_x86.cpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/cpu/x86/vm/cppInterpreter_x86.cpp	Tue Apr 01 09:36:49 2014 +0200
@@ -2342,29 +2342,42 @@
          "Stack top out of range");
 }
 
-int AbstractInterpreter::layout_activation(Method* method,
-                                           int tempcount,  //
-                                           int popframe_extra_args,
-                                           int moncount,
-                                           int caller_actual_parameters,
-                                           int callee_param_count,
-                                           int callee_locals,
-                                           frame* caller,
-                                           frame* interpreter_frame,
-                                           bool is_top_frame,
-                                           bool is_bottom_frame) {
-
-  assert(popframe_extra_args == 0, "FIX ME");
-  // NOTE this code must exactly mimic what InterpreterGenerator::generate_compute_interpreter_state()
-  // does as far as allocating an interpreter frame.
-  // If interpreter_frame!=NULL, set up the method, locals, and monitors.
-  // The frame interpreter_frame, if not NULL, is guaranteed to be the right size,
-  // as determined by a previous call to this method.
-  // It is also guaranteed to be walkable even though it is in a skeletal state
+
+static int frame_size_helper(int max_stack,
+                             int tempcount,
+                             int moncount,
+                             int callee_param_count,
+                             int callee_locals,
+                             bool is_top_frame,
+                             int& monitor_size,
+                             int& full_frame_size) {
+  int extra_locals_size = (callee_locals - callee_param_count) * BytesPerWord;
+  monitor_size = sizeof(BasicObjectLock) * moncount;
+
+  // First calculate the frame size without any java expression stack
+  int short_frame_size = size_activation_helper(extra_locals_size,
+                                                monitor_size);
+
+  // Now with full size expression stack
+  full_frame_size = short_frame_size + max_stack * BytesPerWord;
+
+  // and now with only live portion of the expression stack
+  short_frame_size = short_frame_size + tempcount * BytesPerWord;
+
+  // the size the activation is right now. Only top frame is full size
+  int frame_size = (is_top_frame ? full_frame_size : short_frame_size);
+  return frame_size;
+}
+
+int AbstractInterpreter::size_activation(int max_stack,
+                                         int tempcount,
+                                         int extra_args,
+                                         int moncount,
+                                         int callee_param_count,
+                                         int callee_locals,
+                                         bool is_top_frame) {
+  assert(extra_args == 0, "FIX ME");
   // NOTE: return size is in words not bytes
-  // NOTE: tempcount is the current size of the java expression stack. For top most
-  //       frames we will allocate a full sized expression stack and not the curback
-  //       version that non-top frames have.
 
   // Calculate the amount our frame will be adjust by the callee. For top frame
   // this is zero.
@@ -2374,87 +2387,102 @@
   // to it. So it ignores last_frame_adjust value. Seems suspicious as far
   // as getting sender_sp correct.
 
-  int extra_locals_size = (callee_locals - callee_param_count) * BytesPerWord;
-  int monitor_size = sizeof(BasicObjectLock) * moncount;
-
-  // First calculate the frame size without any java expression stack
-  int short_frame_size = size_activation_helper(extra_locals_size,
-                                                monitor_size);
-
-  // Now with full size expression stack
-  int full_frame_size = short_frame_size + method->max_stack() * BytesPerWord;
-
-  // and now with only live portion of the expression stack
-  short_frame_size = short_frame_size + tempcount * BytesPerWord;
-
-  // the size the activation is right now. Only top frame is full size
-  int frame_size = (is_top_frame ? full_frame_size : short_frame_size);
-
-  if (interpreter_frame != NULL) {
+  int unused_monitor_size = 0;
+  int unused_full_frame_size = 0;
+  return frame_size_helper(max_stack, tempcount, moncount, callee_param_count, callee_locals,
+                           is_top_frame, unused_monitor_size, unused_full_frame_size)/BytesPerWord;
+}
+
+void AbstractInterpreter::layout_activation(Method* method,
+                                            int tempcount,  //
+                                            int popframe_extra_args,
+                                            int moncount,
+                                            int caller_actual_parameters,
+                                            int callee_param_count,
+                                            int callee_locals,
+                                            frame* caller,
+                                            frame* interpreter_frame,
+                                            bool is_top_frame,
+                                            bool is_bottom_frame) {
+
+  assert(popframe_extra_args == 0, "FIX ME");
+  // NOTE this code must exactly mimic what InterpreterGenerator::generate_compute_interpreter_state()
+  // does as far as allocating an interpreter frame.
+  // Set up the method, locals, and monitors.
+  // The frame interpreter_frame is guaranteed to be the right size,
+  // as determined by a previous call to the size_activation() method.
+  // It is also guaranteed to be walkable even though it is in a skeletal state
+  // NOTE: tempcount is the current size of the java expression stack. For top most
+  //       frames we will allocate a full sized expression stack and not the curback
+  //       version that non-top frames have.
+
+  int monitor_size = 0;
+  int full_frame_size = 0;
+  int frame_size = frame_size_helper(method->max_stack(), tempcount, moncount, callee_param_count, callee_locals,
+                                     is_top_frame, monitor_size, full_frame_size);
+
 #ifdef ASSERT
-    assert(caller->unextended_sp() == interpreter_frame->interpreter_frame_sender_sp(), "Frame not properly walkable");
+  assert(caller->unextended_sp() == interpreter_frame->interpreter_frame_sender_sp(), "Frame not properly walkable");
 #endif
 
-    // MUCHO HACK
-
-    intptr_t* frame_bottom = (intptr_t*) ((intptr_t)interpreter_frame->sp() - (full_frame_size - frame_size));
-
-    /* Now fillin the interpreterState object */
-
-    // The state object is the first thing on the frame and easily located
-
-    interpreterState cur_state = (interpreterState) ((intptr_t)interpreter_frame->fp() - sizeof(BytecodeInterpreter));
-
-
-    // Find the locals pointer. This is rather simple on x86 because there is no
-    // confusing rounding at the callee to account for. We can trivially locate
-    // our locals based on the current fp().
-    // Note: the + 2 is for handling the "static long no_params() method" issue.
-    // (too bad I don't really remember that issue well...)
-
-    intptr_t* locals;
-    // If the caller is interpreted we need to make sure that locals points to the first
-    // argument that the caller passed and not in an area where the stack might have been extended.
-    // because the stack to stack to converter needs a proper locals value in order to remove the
-    // arguments from the caller and place the result in the proper location. Hmm maybe it'd be
-    // simpler if we simply stored the result in the BytecodeInterpreter object and let the c++ code
-    // adjust the stack?? HMMM QQQ
-    //
-    if (caller->is_interpreted_frame()) {
-      // locals must agree with the caller because it will be used to set the
-      // caller's tos when we return.
-      interpreterState prev  = caller->get_interpreterState();
-      // stack() is prepushed.
-      locals = prev->stack() + method->size_of_parameters();
-      // locals = caller->unextended_sp() + (method->size_of_parameters() - 1);
-      if (locals != interpreter_frame->fp() + frame::sender_sp_offset + (method->max_locals() - 1) + 2) {
-        // os::breakpoint();
-      }
-    } else {
-      // this is where a c2i would have placed locals (except for the +2)
-      locals = interpreter_frame->fp() + frame::sender_sp_offset + (method->max_locals() - 1) + 2;
+  // MUCHO HACK
+
+  intptr_t* frame_bottom = (intptr_t*) ((intptr_t)interpreter_frame->sp() - (full_frame_size - frame_size));
+
+  /* Now fillin the interpreterState object */
+
+  // The state object is the first thing on the frame and easily located
+
+  interpreterState cur_state = (interpreterState) ((intptr_t)interpreter_frame->fp() - sizeof(BytecodeInterpreter));
+
+
+  // Find the locals pointer. This is rather simple on x86 because there is no
+  // confusing rounding at the callee to account for. We can trivially locate
+  // our locals based on the current fp().
+  // Note: the + 2 is for handling the "static long no_params() method" issue.
+  // (too bad I don't really remember that issue well...)
+
+  intptr_t* locals;
+  // If the caller is interpreted we need to make sure that locals points to the first
+  // argument that the caller passed and not in an area where the stack might have been extended.
+  // because the stack to stack to converter needs a proper locals value in order to remove the
+  // arguments from the caller and place the result in the proper location. Hmm maybe it'd be
+  // simpler if we simply stored the result in the BytecodeInterpreter object and let the c++ code
+  // adjust the stack?? HMMM QQQ
+  //
+  if (caller->is_interpreted_frame()) {
+    // locals must agree with the caller because it will be used to set the
+    // caller's tos when we return.
+    interpreterState prev  = caller->get_interpreterState();
+    // stack() is prepushed.
+    locals = prev->stack() + method->size_of_parameters();
+    // locals = caller->unextended_sp() + (method->size_of_parameters() - 1);
+    if (locals != interpreter_frame->fp() + frame::sender_sp_offset + (method->max_locals() - 1) + 2) {
+      // os::breakpoint();
     }
-
-    intptr_t* monitor_base = (intptr_t*) cur_state;
-    intptr_t* stack_base = (intptr_t*) ((intptr_t) monitor_base - monitor_size);
-    /* +1 because stack is always prepushed */
-    intptr_t* stack = (intptr_t*) ((intptr_t) stack_base - (tempcount + 1) * BytesPerWord);
-
-
-    BytecodeInterpreter::layout_interpreterState(cur_state,
-                                          caller,
-                                          interpreter_frame,
-                                          method,
-                                          locals,
-                                          stack,
-                                          stack_base,
-                                          monitor_base,
-                                          frame_bottom,
-                                          is_top_frame);
-
-    // BytecodeInterpreter::pd_layout_interpreterState(cur_state, interpreter_return_address, interpreter_frame->fp());
+  } else {
+    // this is where a c2i would have placed locals (except for the +2)
+    locals = interpreter_frame->fp() + frame::sender_sp_offset + (method->max_locals() - 1) + 2;
   }
-  return frame_size/BytesPerWord;
+
+  intptr_t* monitor_base = (intptr_t*) cur_state;
+  intptr_t* stack_base = (intptr_t*) ((intptr_t) monitor_base - monitor_size);
+  /* +1 because stack is always prepushed */
+  intptr_t* stack = (intptr_t*) ((intptr_t) stack_base - (tempcount + 1) * BytesPerWord);
+
+
+  BytecodeInterpreter::layout_interpreterState(cur_state,
+                                               caller,
+                                               interpreter_frame,
+                                               method,
+                                               locals,
+                                               stack,
+                                               stack_base,
+                                               monitor_base,
+                                               frame_bottom,
+                                               is_top_frame);
+
+  // BytecodeInterpreter::pd_layout_interpreterState(cur_state, interpreter_return_address, interpreter_frame->fp());
 }
 
 bool AbstractInterpreter::can_be_compiled(methodHandle m) {

--- a/hotspot/src/cpu/x86/vm/macroAssembler_x86.cpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/cpu/x86/vm/macroAssembler_x86.cpp	Tue Apr 01 09:36:49 2014 +0200
@@ -1051,7 +1051,7 @@
   // was post-decremented.)  Skip this address by starting at i=1, and
   // touch a few more pages below.  N.B.  It is important to touch all
   // the way down to and including i=StackShadowPages.
-  for (int i = 1; i <= StackShadowPages; i++) {
+  for (int i = 1; i < StackShadowPages; i++) {
     // this could be any sized move but this is can be a debugging crumb
     // so the bigger the better.
     movptr(Address(tmp, (-i*os::vm_page_size())), size );
@@ -6093,7 +6093,7 @@
 
 
 // C2 compiled method's prolog code.
-void MacroAssembler::verified_entry(int framesize, bool stack_bang, bool fp_mode_24b) {
+void MacroAssembler::verified_entry(int framesize, int stack_bang_size, bool fp_mode_24b) {
 
   // WARNING: Initial instruction MUST be 5 bytes or longer so that
   // NativeJump::patch_verified_entry will be able to patch out the entry
@@ -6101,18 +6101,20 @@
   // the frame allocation can be either 3 or 6 bytes. So if we don't do
   // stack bang then we must use the 6 byte frame allocation even if
   // we have no frame. :-(
+  assert(stack_bang_size >= framesize || stack_bang_size <= 0, "stack bang size incorrect");
 
   assert((framesize & (StackAlignmentInBytes-1)) == 0, "frame size not aligned");
   // Remove word for return addr
   framesize -= wordSize;
+  stack_bang_size -= wordSize;
 
   // Calls to C2R adapters often do not accept exceptional returns.
   // We require that their callers must bang for them.  But be careful, because
   // some VM calls (such as call site linkage) can use several kilobytes of
   // stack.  But the stack safety zone should account for that.
   // See bugs 4446381, 4468289, 4497237.
-  if (stack_bang) {
-    generate_stack_overflow_check(framesize);
+  if (stack_bang_size > 0) {
+    generate_stack_overflow_check(stack_bang_size);
 
     // We always push rbp, so that on return to interpreter rbp, will be
     // restored correctly and we can correct the stack.

--- a/hotspot/src/cpu/x86/vm/macroAssembler_x86.hpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/cpu/x86/vm/macroAssembler_x86.hpp	Tue Apr 01 09:36:49 2014 +0200
@@ -1170,7 +1170,7 @@
   void movl2ptr(Register dst, Register src) { LP64_ONLY(movslq(dst, src)) NOT_LP64(if (dst != src) movl(dst, src)); }
 
   // C2 compiled method's prolog code.
-  void verified_entry(int framesize, bool stack_bang, bool fp_mode_24b);
+  void verified_entry(int framesize, int stack_bang_size, bool fp_mode_24b);
 
   // clear memory of size 'cnt' qwords, starting at 'base'.
   void clear_mem(Register base, Register cnt, Register rtmp);

--- a/hotspot/src/cpu/x86/vm/sharedRuntime_x86_32.cpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/cpu/x86/vm/sharedRuntime_x86_32.cpp	Tue Apr 01 09:36:49 2014 +0200
@@ -3014,11 +3014,15 @@
   // restore rbp before stack bang because if stack overflow is thrown it needs to be pushed (and preserved)
   __ movptr(rbp, Address(rdi, Deoptimization::UnrollBlock::initial_info_offset_in_bytes()));
 
-  // Stack bang to make sure there's enough room for these interpreter frames.
+#ifdef ASSERT
+  // Compilers generate code that bang the stack by as much as the
+  // interpreter would need. So this stack banging should never
+  // trigger a fault. Verify that it does not on non product builds.
   if (UseStackBanging) {
     __ movl(rbx, Address(rdi ,Deoptimization::UnrollBlock::total_frame_sizes_offset_in_bytes()));
     __ bang_stack_size(rbx, rcx);
   }
+#endif
 
   // Load array of frame pcs into ECX
   __ movptr(rcx,Address(rdi,Deoptimization::UnrollBlock::frame_pcs_offset_in_bytes()));
@@ -3240,12 +3244,15 @@
   // restore rbp before stack bang because if stack overflow is thrown it needs to be pushed (and preserved)
   __ movptr(rbp, Address(rdi, Deoptimization::UnrollBlock::initial_info_offset_in_bytes()));
 
-  // Stack bang to make sure there's enough room for these interpreter frames.
+#ifdef ASSERT
+  // Compilers generate code that bang the stack by as much as the
+  // interpreter would need. So this stack banging should never
+  // trigger a fault. Verify that it does not on non product builds.
   if (UseStackBanging) {
     __ movl(rbx, Address(rdi ,Deoptimization::UnrollBlock::total_frame_sizes_offset_in_bytes()));
     __ bang_stack_size(rbx, rcx);
   }
-
+#endif
 
   // Load array of frame pcs into ECX
   __ movl(rcx,Address(rdi,Deoptimization::UnrollBlock::frame_pcs_offset_in_bytes()));

--- a/hotspot/src/cpu/x86/vm/sharedRuntime_x86_64.cpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/cpu/x86/vm/sharedRuntime_x86_64.cpp	Tue Apr 01 09:36:49 2014 +0200
@@ -3484,11 +3484,15 @@
   // restore rbp before stack bang because if stack overflow is thrown it needs to be pushed (and preserved)
   __ movptr(rbp, Address(rdi, Deoptimization::UnrollBlock::initial_info_offset_in_bytes()));
 
-  // Stack bang to make sure there's enough room for these interpreter frames.
+#ifdef ASSERT
+  // Compilers generate code that bang the stack by as much as the
+  // interpreter would need. So this stack banging should never
+  // trigger a fault. Verify that it does not on non product builds.
   if (UseStackBanging) {
     __ movl(rbx, Address(rdi, Deoptimization::UnrollBlock::total_frame_sizes_offset_in_bytes()));
     __ bang_stack_size(rbx, rcx);
   }
+#endif
 
   // Load address of array of frame pcs into rcx
   __ movptr(rcx, Address(rdi, Deoptimization::UnrollBlock::frame_pcs_offset_in_bytes()));
@@ -3682,11 +3686,15 @@
   // restore rbp before stack bang because if stack overflow is thrown it needs to be pushed (and preserved)
   __ movptr(rbp, Address(rdi, Deoptimization::UnrollBlock::initial_info_offset_in_bytes()));
 
-  // Stack bang to make sure there's enough room for these interpreter frames.
+#ifdef ASSERT
+  // Compilers generate code that bang the stack by as much as the
+  // interpreter would need. So this stack banging should never
+  // trigger a fault. Verify that it does not on non product builds.
   if (UseStackBanging) {
     __ movl(rbx, Address(rdi ,Deoptimization::UnrollBlock::total_frame_sizes_offset_in_bytes()));
     __ bang_stack_size(rbx, rcx);
   }
+#endif
 
   // Load address of array of frame pcs into rcx (address*)
   __ movptr(rcx, Address(rdi, Deoptimization::UnrollBlock::frame_pcs_offset_in_bytes()));

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/cpu/x86/vm/templateInterpreter_x86.cpp	Tue Apr 01 09:36:49 2014 +0200
@@ -0,0 +1,124 @@
+/*
+ * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "ci/ciMethod.hpp"
+#include "interpreter/interpreter.hpp"
+#include "runtime/frame.inline.hpp"
+
+#ifndef CC_INTERP
+
+// asm based interpreter deoptimization helpers
+int AbstractInterpreter::size_activation(int max_stack,
+                                         int temps,
+                                         int extra_args,
+                                         int monitors,
+                                         int callee_params,
+                                         int callee_locals,
+                                         bool is_top_frame) {
+  // Note: This calculation must exactly parallel the frame setup
+  // in AbstractInterpreterGenerator::generate_method_entry.
+
+  // fixed size of an interpreter frame:
+  int overhead = frame::sender_sp_offset -
+                 frame::interpreter_frame_initial_sp_offset;
+  // Our locals were accounted for by the caller (or last_frame_adjust
+  // on the transistion) Since the callee parameters already account
+  // for the callee's params we only need to account for the extra
+  // locals.
+  int size = overhead +
+         (callee_locals - callee_params)*Interpreter::stackElementWords +
+         monitors * frame::interpreter_frame_monitor_size() +
+         temps* Interpreter::stackElementWords + extra_args;
+
+  return size;
+}
+
+void AbstractInterpreter::layout_activation(Method* method,
+                                            int tempcount,
+                                            int popframe_extra_args,
+                                            int moncount,
+                                            int caller_actual_parameters,
+                                            int callee_param_count,
+                                            int callee_locals,
+                                            frame* caller,
+                                            frame* interpreter_frame,
+                                            bool is_top_frame,
+                                            bool is_bottom_frame) {
+  // The frame interpreter_frame is guaranteed to be the right size,
+  // as determined by a previous call to the size_activation() method.
+  // It is also guaranteed to be walkable even though it is in a
+  // skeletal state
+
+  int max_locals = method->max_locals() * Interpreter::stackElementWords;
+  int extra_locals = (method->max_locals() - method->size_of_parameters()) *
+    Interpreter::stackElementWords;
+
+#ifdef ASSERT
+  if (!EnableInvokeDynamic) {
+    // @@@ FIXME: Should we correct interpreter_frame_sender_sp in the calling sequences?
+    // Probably, since deoptimization doesn't work yet.
+    assert(caller->unextended_sp() == interpreter_frame->interpreter_frame_sender_sp(), "Frame not properly walkable");
+  }
+  assert(caller->sp() == interpreter_frame->sender_sp(), "Frame not properly walkable(2)");
+#endif
+
+  interpreter_frame->interpreter_frame_set_method(method);
+  // NOTE the difference in using sender_sp and
+  // interpreter_frame_sender_sp interpreter_frame_sender_sp is
+  // the original sp of the caller (the unextended_sp) and
+  // sender_sp is fp+8/16 (32bit/64bit) XXX
+  intptr_t* locals = interpreter_frame->sender_sp() + max_locals - 1;
+
+#ifdef ASSERT
+  if (caller->is_interpreted_frame()) {
+    assert(locals < caller->fp() + frame::interpreter_frame_initial_sp_offset, "bad placement");
+  }
+#endif
+
+  interpreter_frame->interpreter_frame_set_locals(locals);
+  BasicObjectLock* montop = interpreter_frame->interpreter_frame_monitor_begin();
+  BasicObjectLock* monbot = montop - moncount;
+  interpreter_frame->interpreter_frame_set_monitor_end(monbot);
+
+  // Set last_sp
+  intptr_t*  esp = (intptr_t*) monbot -
+    tempcount*Interpreter::stackElementWords -
+    popframe_extra_args;
+  interpreter_frame->interpreter_frame_set_last_sp(esp);
+
+  // All frames but the initial (oldest) interpreter frame we fill in have
+  // a value for sender_sp that allows walking the stack but isn't
+  // truly correct. Correct the value here.
+  if (extra_locals != 0 &&
+      interpreter_frame->sender_sp() ==
+      interpreter_frame->interpreter_frame_sender_sp()) {
+    interpreter_frame->set_interpreter_frame_sender_sp(caller->sp() +
+                                                       extra_locals);
+  }
+  *interpreter_frame->interpreter_frame_cache_addr() =
+    method->constants()->cache();
+}
+
+#endif // CC_INTERP

--- a/hotspot/src/cpu/x86/vm/templateInterpreter_x86_32.cpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/cpu/x86/vm/templateInterpreter_x86_32.cpp	Tue Apr 01 09:36:49 2014 +0200
@@ -1686,91 +1686,6 @@
   return overhead_size + method_stack + stub_code;
 }
 
-// asm based interpreter deoptimization helpers
-
-int AbstractInterpreter::layout_activation(Method* method,
-                                           int tempcount,
-                                           int popframe_extra_args,
-                                           int moncount,
-                                           int caller_actual_parameters,
-                                           int callee_param_count,
-                                           int callee_locals,
-                                           frame* caller,
-                                           frame* interpreter_frame,
-                                           bool is_top_frame,
-                                           bool is_bottom_frame) {
-  // Note: This calculation must exactly parallel the frame setup
-  // in AbstractInterpreterGenerator::generate_method_entry.
-  // If interpreter_frame!=NULL, set up the method, locals, and monitors.
-  // The frame interpreter_frame, if not NULL, is guaranteed to be the right size,
-  // as determined by a previous call to this method.
-  // It is also guaranteed to be walkable even though it is in a skeletal state
-  // NOTE: return size is in words not bytes
-
-  // fixed size of an interpreter frame:
-  int max_locals = method->max_locals() * Interpreter::stackElementWords;
-  int extra_locals = (method->max_locals() - method->size_of_parameters()) *
-                     Interpreter::stackElementWords;
-
-  int overhead = frame::sender_sp_offset - frame::interpreter_frame_initial_sp_offset;
-
-  // Our locals were accounted for by the caller (or last_frame_adjust on the transistion)
-  // Since the callee parameters already account for the callee's params we only need to account for
-  // the extra locals.
-
-
-  int size = overhead +
-         ((callee_locals - callee_param_count)*Interpreter::stackElementWords) +
-         (moncount*frame::interpreter_frame_monitor_size()) +
-         tempcount*Interpreter::stackElementWords + popframe_extra_args;
-
-  if (interpreter_frame != NULL) {
-#ifdef ASSERT
-    if (!EnableInvokeDynamic)
-      // @@@ FIXME: Should we correct interpreter_frame_sender_sp in the calling sequences?
-      // Probably, since deoptimization doesn't work yet.
-      assert(caller->unextended_sp() == interpreter_frame->interpreter_frame_sender_sp(), "Frame not properly walkable");
-    assert(caller->sp() == interpreter_frame->sender_sp(), "Frame not properly walkable(2)");
-#endif
-
-    interpreter_frame->interpreter_frame_set_method(method);
-    // NOTE the difference in using sender_sp and interpreter_frame_sender_sp
-    // interpreter_frame_sender_sp is the original sp of the caller (the unextended_sp)
-    // and sender_sp is fp+8
-    intptr_t* locals = interpreter_frame->sender_sp() + max_locals - 1;
-
-#ifdef ASSERT
-    if (caller->is_interpreted_frame()) {
-      assert(locals < caller->fp() + frame::interpreter_frame_initial_sp_offset, "bad placement");
-    }
-#endif
-
-    interpreter_frame->interpreter_frame_set_locals(locals);
-    BasicObjectLock* montop = interpreter_frame->interpreter_frame_monitor_begin();
-    BasicObjectLock* monbot = montop - moncount;
-    interpreter_frame->interpreter_frame_set_monitor_end(monbot);
-
-    // Set last_sp
-    intptr_t*  rsp = (intptr_t*) monbot  -
-                     tempcount*Interpreter::stackElementWords -
-                     popframe_extra_args;
-    interpreter_frame->interpreter_frame_set_last_sp(rsp);
-
-    // All frames but the initial (oldest) interpreter frame we fill in have a
-    // value for sender_sp that allows walking the stack but isn't
-    // truly correct. Correct the value here.
-
-    if (extra_locals != 0 &&
-        interpreter_frame->sender_sp() == interpreter_frame->interpreter_frame_sender_sp() ) {
-      interpreter_frame->set_interpreter_frame_sender_sp(caller->sp() + extra_locals);
-    }
-    *interpreter_frame->interpreter_frame_cache_addr() =
-      method->constants()->cache();
-  }
-  return size;
-}
-
-
 //------------------------------------------------------------------------------------------------------------------------
 // Exceptions
 

--- a/hotspot/src/cpu/x86/vm/templateInterpreter_x86_64.cpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/cpu/x86/vm/templateInterpreter_x86_64.cpp	Tue Apr 01 09:36:49 2014 +0200
@@ -1695,87 +1695,6 @@
   return (overhead_size + method_stack + stub_code);
 }
 
-int AbstractInterpreter::layout_activation(Method* method,
-                                           int tempcount,
-                                           int popframe_extra_args,
-                                           int moncount,
-                                           int caller_actual_parameters,
-                                           int callee_param_count,
-                                           int callee_locals,
-                                           frame* caller,
-                                           frame* interpreter_frame,
-                                           bool is_top_frame,
-                                           bool is_bottom_frame) {
-  // Note: This calculation must exactly parallel the frame setup
-  // in AbstractInterpreterGenerator::generate_method_entry.
-  // If interpreter_frame!=NULL, set up the method, locals, and monitors.
-  // The frame interpreter_frame, if not NULL, is guaranteed to be the
-  // right size, as determined by a previous call to this method.
-  // It is also guaranteed to be walkable even though it is in a skeletal state
-
-  // fixed size of an interpreter frame:
-  int max_locals = method->max_locals() * Interpreter::stackElementWords;
-  int extra_locals = (method->max_locals() - method->size_of_parameters()) *
-                     Interpreter::stackElementWords;
-
-  int overhead = frame::sender_sp_offset -
-                 frame::interpreter_frame_initial_sp_offset;
-  // Our locals were accounted for by the caller (or last_frame_adjust
-  // on the transistion) Since the callee parameters already account
-  // for the callee's params we only need to account for the extra
-  // locals.
-  int size = overhead +
-         (callee_locals - callee_param_count)*Interpreter::stackElementWords +
-         moncount * frame::interpreter_frame_monitor_size() +
-         tempcount* Interpreter::stackElementWords + popframe_extra_args;
-  if (interpreter_frame != NULL) {
-#ifdef ASSERT
-    if (!EnableInvokeDynamic)
-      // @@@ FIXME: Should we correct interpreter_frame_sender_sp in the calling sequences?
-      // Probably, since deoptimization doesn't work yet.
-      assert(caller->unextended_sp() == interpreter_frame->interpreter_frame_sender_sp(), "Frame not properly walkable");
-    assert(caller->sp() == interpreter_frame->sender_sp(), "Frame not properly walkable(2)");
-#endif
-
-    interpreter_frame->interpreter_frame_set_method(method);
-    // NOTE the difference in using sender_sp and
-    // interpreter_frame_sender_sp interpreter_frame_sender_sp is
-    // the original sp of the caller (the unextended_sp) and
-    // sender_sp is fp+16 XXX
-    intptr_t* locals = interpreter_frame->sender_sp() + max_locals - 1;
-
-#ifdef ASSERT
-    if (caller->is_interpreted_frame()) {
-      assert(locals < caller->fp() + frame::interpreter_frame_initial_sp_offset, "bad placement");
-    }
-#endif
-
-    interpreter_frame->interpreter_frame_set_locals(locals);
-    BasicObjectLock* montop = interpreter_frame->interpreter_frame_monitor_begin();
-    BasicObjectLock* monbot = montop - moncount;
-    interpreter_frame->interpreter_frame_set_monitor_end(monbot);
-
-    // Set last_sp
-    intptr_t*  esp = (intptr_t*) monbot -
-                     tempcount*Interpreter::stackElementWords -
-                     popframe_extra_args;
-    interpreter_frame->interpreter_frame_set_last_sp(esp);
-
-    // All frames but the initial (oldest) interpreter frame we fill in have
-    // a value for sender_sp that allows walking the stack but isn't
-    // truly correct. Correct the value here.
-    if (extra_locals != 0 &&
-        interpreter_frame->sender_sp() ==
-        interpreter_frame->interpreter_frame_sender_sp()) {
-      interpreter_frame->set_interpreter_frame_sender_sp(caller->sp() +
-                                                         extra_locals);
-    }
-    *interpreter_frame->interpreter_frame_cache_addr() =
-      method->constants()->cache();
-  }
-  return size;
-}
-
 //-----------------------------------------------------------------------------
 // Exceptions
 

--- a/hotspot/src/cpu/x86/vm/x86_32.ad	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/cpu/x86/vm/x86_32.ad	Tue Apr 01 09:36:49 2014 +0200
@@ -512,14 +512,15 @@
 void MachPrologNode::format(PhaseRegAlloc* ra_, outputStream* st) const {
   Compile* C = ra_->C;
 
-  int framesize = C->frame_slots() << LogBytesPerInt;
+  int framesize = C->frame_size_in_bytes();
+  int bangsize = C->bang_size_in_bytes();
   assert((framesize & (StackAlignmentInBytes-1)) == 0, "frame size not aligned");
   // Remove wordSize for return addr which is already pushed.
   framesize -= wordSize;
 
-  if (C->need_stack_bang(framesize)) {
+  if (C->need_stack_bang(bangsize)) {
     framesize -= wordSize;
-    st->print("# stack bang");
+    st->print("# stack bang (%d bytes)", bangsize);
     st->print("\n\t");
     st->print("PUSH   EBP\t# Save EBP");
     if (framesize) {
@@ -563,9 +564,10 @@
   Compile* C = ra_->C;
   MacroAssembler _masm(&cbuf);
 
-  int framesize = C->frame_slots() << LogBytesPerInt;
-
-  __ verified_entry(framesize, C->need_stack_bang(framesize), C->in_24_bit_fp_mode());
+  int framesize = C->frame_size_in_bytes();
+  int bangsize = C->bang_size_in_bytes();
+
+  __ verified_entry(framesize, C->need_stack_bang(bangsize)?bangsize:0, C->in_24_bit_fp_mode());
 
   C->set_frame_complete(cbuf.insts_size());
 
@@ -589,7 +591,7 @@
 #ifndef PRODUCT
 void MachEpilogNode::format( PhaseRegAlloc *ra_, outputStream* st ) const {
   Compile *C = ra_->C;
-  int framesize = C->frame_slots() << LogBytesPerInt;
+  int framesize = C->frame_size_in_bytes();
   assert((framesize & (StackAlignmentInBytes-1)) == 0, "frame size not aligned");
   // Remove two words for return addr and rbp,
   framesize -= 2*wordSize;
@@ -629,7 +631,7 @@
     masm.fldcw(ExternalAddress(StubRoutines::addr_fpu_cntrl_wrd_std()));
   }
 
-  int framesize = C->frame_slots() << LogBytesPerInt;
+  int framesize = C->frame_size_in_bytes();
   assert((framesize & (StackAlignmentInBytes-1)) == 0, "frame size not aligned");
   // Remove two words for return addr and rbp,
   framesize -= 2*wordSize;
@@ -663,7 +665,7 @@
   if (C->max_vector_size() > 16) size += 3; // vzeroupper
   if (do_polling() && C->is_method_compilation()) size += 6;
 
-  int framesize = C->frame_slots() << LogBytesPerInt;
+  int framesize = C->frame_size_in_bytes();
   assert((framesize & (StackAlignmentInBytes-1)) == 0, "frame size not aligned");
   // Remove two words for return addr and rbp,
   framesize -= 2*wordSize;

--- a/hotspot/src/cpu/x86/vm/x86_64.ad	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/cpu/x86/vm/x86_64.ad	Tue Apr 01 09:36:49 2014 +0200
@@ -713,14 +713,15 @@
 void MachPrologNode::format(PhaseRegAlloc* ra_, outputStream* st) const {
   Compile* C = ra_->C;
 
-  int framesize = C->frame_slots() << LogBytesPerInt;
+  int framesize = C->frame_size_in_bytes();
+  int bangsize = C->bang_size_in_bytes();
   assert((framesize & (StackAlignmentInBytes-1)) == 0, "frame size not aligned");
   // Remove wordSize for return addr which is already pushed.
   framesize -= wordSize;
 
-  if (C->need_stack_bang(framesize)) {
+  if (C->need_stack_bang(bangsize)) {
     framesize -= wordSize;
-    st->print("# stack bang");
+    st->print("# stack bang (%d bytes)", bangsize);
     st->print("\n\t");
     st->print("pushq   rbp\t# Save rbp");
     if (framesize) {
@@ -751,9 +752,10 @@
   Compile* C = ra_->C;
   MacroAssembler _masm(&cbuf);
 
-  int framesize = C->frame_slots() << LogBytesPerInt;
-
-  __ verified_entry(framesize, C->need_stack_bang(framesize), false);
+  int framesize = C->frame_size_in_bytes();
+  int bangsize = C->bang_size_in_bytes();
+
+  __ verified_entry(framesize, C->need_stack_bang(bangsize)?bangsize:0, false);
 
   C->set_frame_complete(cbuf.insts_size());
 
@@ -786,7 +788,7 @@
     st->cr(); st->print("\t");
   }
 
-  int framesize = C->frame_slots() << LogBytesPerInt;
+  int framesize = C->frame_size_in_bytes();
   assert((framesize & (StackAlignmentInBytes-1)) == 0, "frame size not aligned");
   // Remove word for return adr already pushed
   // and RBP
@@ -822,7 +824,7 @@
     __ vzeroupper();
   }
 
-  int framesize = C->frame_slots() << LogBytesPerInt;
+  int framesize = C->frame_size_in_bytes();
   assert((framesize & (StackAlignmentInBytes-1)) == 0, "frame size not aligned");
   // Remove word for return adr already pushed
   // and RBP

--- a/hotspot/src/cpu/zero/vm/cppInterpreter_zero.cpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/cpu/zero/vm/cppInterpreter_zero.cpp	Tue Apr 01 09:36:49 2014 +0200
@@ -916,17 +916,32 @@
   return (InterpreterFrame *) fp;
 }
 
-int AbstractInterpreter::layout_activation(Method* method,
-                                           int       tempcount,
-                                           int       popframe_extra_args,
-                                           int       moncount,
-                                           int       caller_actual_parameters,
-                                           int       callee_param_count,
-                                           int       callee_locals,
-                                           frame*    caller,
-                                           frame*    interpreter_frame,
-                                           bool      is_top_frame,
-                                           bool      is_bottom_frame) {
+int AbstractInterpreter::size_activation(int       max_stack,
+                                         int       tempcount,
+                                         int       extra_args,
+                                         int       moncount,
+                                         int       callee_param_count,
+                                         int       callee_locals,
+                                         bool      is_top_frame) {
+  int header_words        = InterpreterFrame::header_words;
+  int monitor_words       = moncount * frame::interpreter_frame_monitor_size();
+  int stack_words         = is_top_frame ? max_stack : tempcount;
+  int callee_extra_locals = callee_locals - callee_param_count;
+
+  return header_words + monitor_words + stack_words + callee_extra_locals;
+}
+
+void AbstractInterpreter::layout_activation(Method* method,
+                                            int       tempcount,
+                                            int       popframe_extra_args,
+                                            int       moncount,
+                                            int       caller_actual_parameters,
+                                            int       callee_param_count,
+                                            int       callee_locals,
+                                            frame*    caller,
+                                            frame*    interpreter_frame,
+                                            bool      is_top_frame,
+                                            bool      is_bottom_frame) {
   assert(popframe_extra_args == 0, "what to do?");
   assert(!is_top_frame || (!callee_locals && !callee_param_count),
          "top frame should have no caller");
@@ -935,39 +950,31 @@
   // does (the full InterpreterFrame::build, that is, not the
   // one that creates empty frames for the deoptimizer).
   //
-  // If interpreter_frame is not NULL then it will be filled in.
-  // It's size is determined by a previous call to this method,
-  // so it should be correct.
+  // interpreter_frame will be filled in.  It's size is determined by
+  // a previous call to the size_activation() method,
   //
   // Note that tempcount is the current size of the expression
   // stack.  For top most frames we will allocate a full sized
   // expression stack and not the trimmed version that non-top
   // frames have.
 
-  int header_words        = InterpreterFrame::header_words;
   int monitor_words       = moncount * frame::interpreter_frame_monitor_size();
-  int stack_words         = is_top_frame ? method->max_stack() : tempcount;
-  int callee_extra_locals = callee_locals - callee_param_count;
-
-  if (interpreter_frame) {
-    intptr_t *locals        = interpreter_frame->fp() + method->max_locals();
-    interpreterState istate = interpreter_frame->get_interpreterState();
-    intptr_t *monitor_base  = (intptr_t*) istate;
-    intptr_t *stack_base    = monitor_base - monitor_words;
-    intptr_t *stack         = stack_base - tempcount - 1;
+  intptr_t *locals        = interpreter_frame->fp() + method->max_locals();
+  interpreterState istate = interpreter_frame->get_interpreterState();
+  intptr_t *monitor_base  = (intptr_t*) istate;
+  intptr_t *stack_base    = monitor_base - monitor_words;
+  intptr_t *stack         = stack_base - tempcount - 1;
 
-    BytecodeInterpreter::layout_interpreterState(istate,
-                                                 caller,
-                                                 NULL,
-                                                 method,
-                                                 locals,
-                                                 stack,
-                                                 stack_base,
-                                                 monitor_base,
-                                                 NULL,
-                                                 is_top_frame);
-  }
-  return header_words + monitor_words + stack_words + callee_extra_locals;
+  BytecodeInterpreter::layout_interpreterState(istate,
+                                               caller,
+                                               NULL,
+                                               method,
+                                               locals,
+                                               stack,
+                                               stack_base,
+                                               monitor_base,
+                                               NULL,
+                                               is_top_frame);
 }
 
 void BytecodeInterpreter::layout_interpreterState(interpreterState istate,

--- a/hotspot/src/share/vm/c1/c1_Compilation.cpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/share/vm/c1/c1_Compilation.cpp	Tue Apr 01 09:36:49 2014 +0200
@@ -546,6 +546,7 @@
 , _code(buffer_blob)
 , _has_access_indexed(false)
 , _current_instruction(NULL)
+, _interpreter_frame_size(0)
 #ifndef PRODUCT
 , _last_instruction_printed(NULL)
 #endif // PRODUCT

--- a/hotspot/src/share/vm/c1/c1_Compilation.hpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/share/vm/c1/c1_Compilation.hpp	Tue Apr 01 09:36:49 2014 +0200
@@ -88,6 +88,7 @@
   CodeOffsets        _offsets;
   CodeBuffer         _code;
   bool               _has_access_indexed;
+  int                _interpreter_frame_size; // Stack space needed in case of a deoptimization
 
   // compilation helpers
   void initialize();
@@ -262,6 +263,18 @@
 
   // Dump inlining replay data to the stream.
   void dump_inline_data(outputStream* out) { /* do nothing now */ }
+
+  // How much stack space would the interpreter need in case of a
+  // deoptimization (worst case)
+  void update_interpreter_frame_size(int size) {
+    if (_interpreter_frame_size < size) {
+      _interpreter_frame_size = size;
+    }
+  }
+
+  int interpreter_frame_size() const {
+    return _interpreter_frame_size;
+  }
 };
 
 

--- a/hotspot/src/share/vm/c1/c1_IR.cpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/share/vm/c1/c1_IR.cpp	Tue Apr 01 09:36:49 2014 +0200
@@ -227,8 +227,38 @@
   _oop_map->set_oop(name);
 }
 
+// Mirror the stack size calculation in the deopt code
+// How much stack space would we need at this point in the program in
+// case of deoptimization?
+int CodeEmitInfo::interpreter_frame_size() const {
+  ValueStack* state = _stack;
+  int size = 0;
+  int callee_parameters = 0;
+  int callee_locals = 0;
+  int extra_args = state->scope()->method()->max_stack() - state->stack_size();
 
+  while (state != NULL) {
+    int locks = state->locks_size();
+    int temps = state->stack_size();
+    bool is_top_frame = (state == _stack);
+    ciMethod* method = state->scope()->method();
 
+    int frame_size = BytesPerWord * Interpreter::size_activation(method->max_stack(),
+                                                                 temps + callee_parameters,
+                                                                 extra_args,
+                                                                 locks,
+                                                                 callee_parameters,
+                                                                 callee_locals,
+                                                                 is_top_frame);
+    size += frame_size;
+
+    callee_parameters = method->size_of_parameters();
+    callee_locals = method->max_locals();
+    extra_args = 0;
+    state = state->caller_state();
+  }
+  return size + Deoptimization::last_frame_adjust(0, callee_locals) * BytesPerWord;
+}
 
 // Implementation of IR
 

--- a/hotspot/src/share/vm/c1/c1_IR.hpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/share/vm/c1/c1_IR.hpp	Tue Apr 01 09:36:49 2014 +0200
@@ -284,6 +284,8 @@
 
   bool     is_method_handle_invoke() const { return _is_method_handle_invoke;     }
   void set_is_method_handle_invoke(bool x) {        _is_method_handle_invoke = x; }
+
+  int interpreter_frame_size() const;
 };
 
 

--- a/hotspot/src/share/vm/c1/c1_LIRAssembler.cpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/share/vm/c1/c1_LIRAssembler.cpp	Tue Apr 01 09:36:49 2014 +0200
@@ -190,6 +190,13 @@
   return _masm->pc();
 }
 
+// To bang the stack of this compiled method we use the stack size
+// that the interpreter would need in case of a deoptimization. This
+// removes the need to bang the stack in the deoptimization blob which
+// in turn simplifies stack overflow handling.
+int LIR_Assembler::bang_size_in_bytes() const {
+  return MAX2(initial_frame_size_in_bytes(), _compilation->interpreter_frame_size());
+}
 
 void LIR_Assembler::emit_exception_entries(ExceptionInfoList* info_list) {
   for (int i = 0; i < info_list->length(); i++) {
@@ -797,7 +804,7 @@
 
 
 void LIR_Assembler::build_frame() {
-  _masm->build_frame(initial_frame_size_in_bytes());
+  _masm->build_frame(initial_frame_size_in_bytes(), bang_size_in_bytes());
 }
 
 

--- a/hotspot/src/share/vm/c1/c1_LIRAssembler.hpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/share/vm/c1/c1_LIRAssembler.hpp	Tue Apr 01 09:36:49 2014 +0200
@@ -132,7 +132,8 @@
   int code_offset() const;
   address pc() const;
 
-  int  initial_frame_size_in_bytes();
+  int  initial_frame_size_in_bytes() const;
+  int  bang_size_in_bytes() const;
 
   // test for constants which can be encoded directly in instructions
   static bool is_small_constant(LIR_Opr opr);

--- a/hotspot/src/share/vm/c1/c1_LinearScan.cpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/share/vm/c1/c1_LinearScan.cpp	Tue Apr 01 09:36:49 2014 +0200
@@ -2451,6 +2451,9 @@
     CodeEmitInfo* info = visitor.info_at(i);
     OopMap* oop_map = first_oop_map;
 
+    // compute worst case interpreter size in case of a deoptimization
+    _compilation->update_interpreter_frame_size(info->interpreter_frame_size());
+
     if (info->stack()->locks_size() != first_info->stack()->locks_size()) {
       // this info has a different number of locks then the precomputed oop map
       // (possible for lock and unlock instructions) -> compute oop map with

--- a/hotspot/src/share/vm/c1/c1_MacroAssembler.hpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/share/vm/c1/c1_MacroAssembler.hpp	Tue Apr 01 09:36:49 2014 +0200
@@ -39,7 +39,7 @@
   void explicit_null_check(Register base);
 
   void inline_cache_check(Register receiver, Register iCache);
-  void build_frame(int frame_size_in_bytes);
+  void build_frame(int frame_size_in_bytes, int bang_size_in_bytes);
   void remove_frame(int frame_size_in_bytes);
 
   void unverified_entry(Register receiver, Register ic_klass);

--- a/hotspot/src/share/vm/ci/ciMethod.cpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/share/vm/ci/ciMethod.cpp	Tue Apr 01 09:36:49 2014 +0200
@@ -80,6 +80,7 @@
   _code_size          = h_m()->code_size();
   _intrinsic_id       = h_m()->intrinsic_id();
   _handler_count      = h_m()->exception_table_length();
+  _size_of_parameters = h_m()->size_of_parameters();
   _uses_monitors      = h_m()->access_flags().has_monitor_bytecodes();
   _balanced_monitors  = !_uses_monitors || h_m()->access_flags().is_monitor_matching();
   _is_c1_compilable   = !h_m()->is_not_c1_compilable();

--- a/hotspot/src/share/vm/ci/ciMethod.hpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/share/vm/ci/ciMethod.hpp	Tue Apr 01 09:36:49 2014 +0200
@@ -71,6 +71,7 @@
   int _interpreter_invocation_count;
   int _interpreter_throwout_count;
   int _instructions_size;
+  int _size_of_parameters;
 
   bool _uses_monitors;
   bool _balanced_monitors;
@@ -166,6 +167,7 @@
   int exception_table_length() const             { check_is_loaded(); return _handler_count; }
   int interpreter_invocation_count() const       { check_is_loaded(); return _interpreter_invocation_count; }
   int interpreter_throwout_count() const         { check_is_loaded(); return _interpreter_throwout_count; }
+  int size_of_parameters() const                 { check_is_loaded(); return _size_of_parameters; }
 
   // Code size for inlining decisions.
   int code_size_for_inlining();
@@ -241,7 +243,6 @@
 
   ciField*      get_field_at_bci( int bci, bool &will_link);
   ciMethod*     get_method_at_bci(int bci, bool &will_link, ciSignature* *declared_signature);
-
   // Given a certain calling environment, find the monomorphic target
   // for the call.  Return NULL if the call is not monomorphic in
   // its calling environment.

--- a/hotspot/src/share/vm/interpreter/abstractInterpreter.hpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/share/vm/interpreter/abstractInterpreter.hpp	Tue Apr 01 09:36:49 2014 +0200
@@ -181,30 +181,16 @@
   // Deoptimization should reexecute this bytecode
   static bool    bytecode_should_reexecute(Bytecodes::Code code);
 
-  // share implementation of size_activation and layout_activation:
-  static int        size_activation(Method* method,
+  // deoptimization support
+  static int        size_activation(int max_stack,
                                     int temps,
-                                    int popframe_args,
+                                    int extra_args,
                                     int monitors,
-                                    int caller_actual_parameters,
                                     int callee_params,
                                     int callee_locals,
-                                    bool is_top_frame,
-                                    bool is_bottom_frame) {
-    return layout_activation(method,
-                             temps,
-                             popframe_args,
-                             monitors,
-                             caller_actual_parameters,
-                             callee_params,
-                             callee_locals,
-                             (frame*)NULL,
-                             (frame*)NULL,
-                             is_top_frame,
-                             is_bottom_frame);
-  }
+                                    bool is_top_frame);
 
-  static int       layout_activation(Method* method,
+  static void      layout_activation(Method* method,
                                      int temps,
                                      int popframe_args,
                                      int monitors,

--- a/hotspot/src/share/vm/opto/callnode.cpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/share/vm/opto/callnode.cpp	Tue Apr 01 09:36:49 2014 +0200
@@ -608,6 +608,39 @@
   }
 }
 
+// Mirror the stack size calculation in the deopt code
+// How much stack space would we need at this point in the program in
+// case of deoptimization?
+int JVMState::interpreter_frame_size() const {
+  const JVMState* jvms = this;
+  int size = 0;
+  int callee_parameters = 0;
+  int callee_locals = 0;
+  int extra_args = method()->max_stack() - stk_size();
+
+  while (jvms != NULL) {
+    int locks = jvms->nof_monitors();
+    int temps = jvms->stk_size();
+    bool is_top_frame = (jvms == this);
+    ciMethod* method = jvms->method();
+
+    int frame_size = BytesPerWord * Interpreter::size_activation(method->max_stack(),
+                                                                 temps + callee_parameters,
+                                                                 extra_args,
+                                                                 locks,
+                                                                 callee_parameters,
+                                                                 callee_locals,
+                                                                 is_top_frame);
+    size += frame_size;
+
+    callee_parameters = method->size_of_parameters();
+    callee_locals = method->max_locals();
+    extra_args = 0;
+    jvms = jvms->caller();
+  }
+  return size + Deoptimization::last_frame_adjust(0, callee_locals) * BytesPerWord;
+}
+
 //=============================================================================
 uint CallNode::cmp( const Node &n ) const
 { return _tf == ((CallNode&)n)._tf && _jvms == ((CallNode&)n)._jvms; }

--- a/hotspot/src/share/vm/opto/callnode.hpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/share/vm/opto/callnode.hpp	Tue Apr 01 09:36:49 2014 +0200
@@ -300,6 +300,7 @@
   JVMState* clone_shallow(Compile* C) const; // retains uncloned caller
   void      set_map_deep(SafePointNode *map);// reset map for all callers
   void      adapt_position(int delta);       // Adapt offsets in in-array after adding an edge.
+  int       interpreter_frame_size() const;
 
 #ifndef PRODUCT
   void      format(PhaseRegAlloc *regalloc, const Node *n, outputStream* st) const;

--- a/hotspot/src/share/vm/opto/compile.cpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/share/vm/opto/compile.cpp	Tue Apr 01 09:36:49 2014 +0200
@@ -440,6 +440,14 @@
   return words;
 }
 
+// To bang the stack of this compiled method we use the stack size
+// that the interpreter would need in case of a deoptimization. This
+// removes the need to bang the stack in the deoptimization blob which
+// in turn simplifies stack overflow handling.
+int Compile::bang_size_in_bytes() const {
+  return MAX2(_interpreter_frame_size, frame_size_in_bytes());
+}
+
 // ============================================================================
 //------------------------------CompileWrapper---------------------------------
 class CompileWrapper : public StackObj {
@@ -664,7 +672,8 @@
                   _print_inlining_list(NULL),
                   _print_inlining_stream(NULL),
                   _print_inlining_idx(0),
-                  _preserve_jvm_state(0) {
+                  _preserve_jvm_state(0),
+                  _interpreter_frame_size(0) {
   C = this;
 
   CompileWrapper cw(this);
@@ -969,7 +978,8 @@
     _print_inlining_stream(NULL),
     _print_inlining_idx(0),
     _preserve_jvm_state(0),
-    _allowed_reasons(0) {
+    _allowed_reasons(0),
+    _interpreter_frame_size(0) {
   C = this;
 
 #ifndef PRODUCT
@@ -3078,8 +3088,12 @@
       Node* m = n->in(i);
       ++i;
       if (m != NULL && !frc._visited.test_set(m->_idx)) {
-        if (m->is_SafePoint() && m->as_SafePoint()->jvms() != NULL)
+        if (m->is_SafePoint() && m->as_SafePoint()->jvms() != NULL) {
+          // compute worst case interpreter size in case of a deoptimization
+          update_interpreter_frame_size(m->as_SafePoint()->jvms()->interpreter_frame_size());
+
           sfpt.push(m);
+        }
         cnt = m->req();
         nstack.push(n, i); // put on stack parent and next input's index
         n = m;

--- a/hotspot/src/share/vm/opto/compile.hpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/share/vm/opto/compile.hpp	Tue Apr 01 09:36:49 2014 +0200
@@ -484,6 +484,7 @@
   RegMask               _FIRST_STACK_mask;      // All stack slots usable for spills (depends on frame layout)
   Arena*                _indexSet_arena;        // control IndexSet allocation within PhaseChaitin
   void*                 _indexSet_free_block_list; // free list of IndexSet bit blocks
+  int                   _interpreter_frame_size;
 
   uint                  _node_bundling_limit;
   Bundle*               _node_bundling_base;    // Information for instruction bundling
@@ -941,6 +942,7 @@
   PhaseRegAlloc*    regalloc()                  { return _regalloc; }
   int               frame_slots() const         { return _frame_slots; }
   int               frame_size_in_words() const; // frame_slots in units of the polymorphic 'words'
+  int               frame_size_in_bytes() const { return _frame_slots << LogBytesPerInt; }
   RegMask&          FIRST_STACK_mask()          { return _FIRST_STACK_mask; }
   Arena*            indexSet_arena()            { return _indexSet_arena; }
   void*             indexSet_free_block_list()  { return _indexSet_free_block_list; }
@@ -952,6 +954,13 @@
   bool          need_stack_bang(int frame_size_in_bytes) const;
   bool          need_register_stack_bang() const;
 
+  void  update_interpreter_frame_size(int size) {
+    if (_interpreter_frame_size < size) {
+      _interpreter_frame_size = size;
+    }
+  }
+  int           bang_size_in_bytes() const;
+
   void          set_matcher(Matcher* m)                 { _matcher = m; }
 //void          set_regalloc(PhaseRegAlloc* ra)           { _regalloc = ra; }
   void          set_indexSet_arena(Arena* a)            { _indexSet_arena = a; }

--- a/hotspot/src/share/vm/opto/output.cpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/share/vm/opto/output.cpp	Tue Apr 01 09:36:49 2014 +0200
@@ -165,8 +165,13 @@
   // Determine if we need to generate a stack overflow check.
   // Do it if the method is not a stub function and
   // has java calls or has frame size > vm_page_size/8.
+  // The debug VM checks that deoptimization doesn't trigger an
+  // unexpected stack overflow (compiled method stack banging should
+  // guarantee it doesn't happen) so we always need the stack bang in
+  // a debug VM.
   return (UseStackBanging && stub_function() == NULL &&
-          (has_java_calls() || frame_size_in_bytes > os::vm_page_size()>>3));
+          (has_java_calls() || frame_size_in_bytes > os::vm_page_size()>>3
+           DEBUG_ONLY(|| true)));
 }
 
 bool Compile::need_register_stack_bang() const {

--- a/hotspot/src/share/vm/runtime/deoptimization.cpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/share/vm/runtime/deoptimization.cpp	Tue Apr 01 09:36:49 2014 +0200
@@ -420,15 +420,9 @@
     // frame[number_of_frames - 1 ] = on_stack_size(youngest)
     // frame[number_of_frames - 2 ] = on_stack_size(sender(youngest))
     // frame[number_of_frames - 3 ] = on_stack_size(sender(sender(youngest)))
-    int caller_parms = callee_parameters;
-    if ((index == array->frames() - 1) && caller_was_method_handle) {
-      caller_parms = 0;
-    }
-    frame_sizes[number_of_frames - 1 - index] = BytesPerWord * array->element(index)->on_stack_size(caller_parms,
-                                                                                                    callee_parameters,
+    frame_sizes[number_of_frames - 1 - index] = BytesPerWord * array->element(index)->on_stack_size(callee_parameters,
                                                                                                     callee_locals,
                                                                                                     index == 0,
-                                                                                                    index == array->frames() - 1,
                                                                                                     popframe_extra_args);
     // This pc doesn't have to be perfect just good enough to identify the frame
     // as interpreted so the skeleton frame will be walkable

--- a/hotspot/src/share/vm/runtime/sharedRuntime.cpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/share/vm/runtime/sharedRuntime.cpp	Tue Apr 01 09:36:49 2014 +0200
@@ -775,10 +775,13 @@
         // going to be unwound. Dispatch to a shared runtime stub
         // which will cause the StackOverflowError to be fabricated
         // and processed.
-        // For stack overflow in deoptimization blob, cleanup thread.
-        if (thread->deopt_mark() != NULL) {
-          Deoptimization::cleanup_deopt_info(thread, NULL);
-        }
+        // Stack overflow should never occur during deoptimization:
+        // the compiled method bangs the stack by as much as the
+        // interpreter would need in case of a deoptimization. The
+        // deoptimization blob and uncommon trap blob bang the stack
+        // in a debug VM to verify the correctness of the compiled
+        // method stack banging.
+        assert(thread->deopt_mark() == NULL, "no stack overflow from deopt blob/uncommon trap");
         Events::log_exception(thread, "StackOverflowError at " INTPTR_FORMAT, pc);
         return StubRoutines::throw_StackOverflowError_entry();
       }

--- a/hotspot/src/share/vm/runtime/vframeArray.cpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/share/vm/runtime/vframeArray.cpp	Tue Apr 01 09:36:49 2014 +0200
@@ -418,24 +418,20 @@
 
 }
 
-int vframeArrayElement::on_stack_size(int caller_actual_parameters,
-                                      int callee_parameters,
+int vframeArrayElement::on_stack_size(int callee_parameters,
                                       int callee_locals,
                                       bool is_top_frame,
-                                      bool is_bottom_frame,
                                       int popframe_extra_stack_expression_els) const {
   assert(method()->max_locals() == locals()->size(), "just checking");
   int locks = monitors() == NULL ? 0 : monitors()->number_of_monitors();
   int temps = expressions()->size();
-  return Interpreter::size_activation(method(),
+  return Interpreter::size_activation(method()->max_stack(),
                                       temps + callee_parameters,
                                       popframe_extra_stack_expression_els,
                                       locks,
-                                      caller_actual_parameters,
                                       callee_parameters,
                                       callee_locals,
-                                      is_top_frame,
-                                      is_bottom_frame);
+                                      is_top_frame);
 }
 
 

--- a/hotspot/src/share/vm/runtime/vframeArray.hpp	Mon Apr 14 09:04:36 2014 +0000
+++ b/hotspot/src/share/vm/runtime/vframeArray.hpp	Tue Apr 01 09:36:49 2014 +0200
@@ -85,10 +85,8 @@
 
   // Returns the on stack word size for this frame
   // callee_parameters is the number of callee locals residing inside this frame
-  int on_stack_size(int caller_actual_parameters,
-                    int callee_parameters,
+  int on_stack_size(int callee_parameters,
                     int callee_locals,
-                    bool is_bottom_frame,
                     bool is_top_frame,
                     int popframe_extra_stack_expression_els) const;
 

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/uncommontrap/TestStackBangMonitorOwned.java	Tue Apr 01 09:36:49 2014 +0200
@@ -0,0 +1,268 @@
+/*
+ * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8032410
+ * @summary Stack overflow at deoptimization doesn't release owned monitors
+ * @run main/othervm -XX:-BackgroundCompilation -XX:CompileCommand=dontinline,TestStackBangMonitorOwned::m1 -XX:CompileCommand=exclude,TestStackBangMonitorOwned::m2 -Xss256K -XX:-UseOnStackReplacement TestStackBangMonitorOwned
+ *
+ */
+public class TestStackBangMonitorOwned {
+
+    static class UnloadedClass1 {
+        volatile int field;
+    }
+
+    static Object m1(boolean deopt) {
+        long l0, l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11, l12,
+        l13, l14, l15, l16, l17, l18, l19, l20, l21, l22, l23, l24,
+        l25, l26, l27, l28, l29, l30, l31, l32, l33, l34, l35, l36,
+        l37, l38, l39, l40, l41, l42, l43, l44, l45, l46, l47, l48,
+        l49, l50, l51, l52, l53, l54, l55, l56, l57, l58, l59, l60,
+        l61, l62, l63, l64, l65, l66, l67, l68, l69, l70, l71, l72,
+        l73, l74, l75, l76, l77, l78, l79, l80, l81, l82, l83, l84,
+        l85, l86, l87, l88, l89, l90, l91, l92, l93, l94, l95, l96,
+        l97, l98, l99, l100, l101, l102, l103, l104, l105, l106, l107,
+        l108, l109, l110, l111, l112, l113, l114, l115, l116, l117,
+        l118, l119, l120, l121, l122, l123, l124, l125, l126, l127,
+        l128, l129, l130, l131, l132, l133, l134, l135, l136, l137,
+        l138, l139, l140, l141, l142, l143, l144, l145, l146, l147,
+        l148, l149, l150, l151, l152, l153, l154, l155, l156, l157,
+        l158, l159, l160, l161, l162, l163, l164, l165, l166, l167,
+        l168, l169, l170, l171, l172, l173, l174, l175, l176, l177,
+        l178, l179, l180, l181, l182, l183, l184, l185, l186, l187,
+        l188, l189, l190, l191, l192, l193, l194, l195, l196, l197,
+        l198, l199, l200, l201, l202, l203, l204, l205, l206, l207,
+        l208, l209, l210, l211, l212, l213, l214, l215, l216, l217,
+        l218, l219, l220, l221, l222, l223, l224, l225, l226, l227,
+        l228, l229, l230, l231, l232, l233, l234, l235, l236, l237,
+        l238, l239, l240, l241, l242, l243, l244, l245, l246, l247,
+        l248, l249, l250, l251, l252, l253, l254, l255, l256, l257,
+        l258, l259, l260, l261, l262, l263, l264, l265, l266, l267,
+        l268, l269, l270, l271, l272, l273, l274, l275, l276, l277,
+        l278, l279, l280, l281, l282, l283, l284, l285, l286, l287,
+        l288, l289, l290, l291, l292, l293, l294, l295, l296, l297,
+        l298, l299, l300, l301, l302, l303, l304, l305, l306, l307,
+        l308, l309, l310, l311, l312, l313, l314, l315, l316, l317,
+        l318, l319, l320, l321, l322, l323, l324, l325, l326, l327,
+        l328, l329, l330, l331, l332, l333, l334, l335, l336, l337,
+        l338, l339, l340, l341, l342, l343, l344, l345, l346, l347,
+        l348, l349, l350, l351, l352, l353, l354, l355, l356, l357,
+        l358, l359, l360, l361, l362, l363, l364, l365, l366, l367,
+        l368, l369, l370, l371, l372, l373, l374, l375, l376, l377,
+        l378, l379, l380, l381, l382, l383, l384, l385, l386, l387,
+        l388, l389, l390, l391, l392, l393, l394, l395, l396, l397,
+        l398, l399, l400, l401, l402, l403, l404, l405, l406, l407,
+        l408, l409, l410, l411, l412, l413, l414, l415, l416, l417,
+        l418, l419, l420, l421, l422, l423, l424, l425, l426, l427,
+        l428, l429, l430, l431, l432, l433, l434, l435, l436, l437,
+        l438, l439, l440, l441, l442, l443, l444, l445, l446, l447,
+        l448, l449, l450, l451, l452, l453, l454, l455, l456, l457,
+        l458, l459, l460, l461, l462, l463, l464, l465, l466, l467,
+        l468, l469, l470, l471, l472, l473, l474, l475, l476, l477,
+        l478, l479, l480, l481, l482, l483, l484, l485, l486, l487,
+        l488, l489, l490, l491, l492, l493, l494, l495, l496, l497,
+        l498, l499, l500, l501, l502, l503, l504, l505, l506, l507,
+        l508, l509, l510, l511;
+
+        long ll0, ll1, ll2, ll3, ll4, ll5, ll6, ll7, ll8, ll9, ll10, ll11, ll12,
+        ll13, ll14, ll15, ll16, ll17, ll18, ll19, ll20, ll21, ll22, ll23, ll24,
+        ll25, ll26, ll27, ll28, ll29, ll30, ll31, ll32, ll33, ll34, ll35, ll36,
+        ll37, ll38, ll39, ll40, ll41, ll42, ll43, ll44, ll45, ll46, ll47, ll48,
+        ll49, ll50, ll51, ll52, ll53, ll54, ll55, ll56, ll57, ll58, ll59, ll60,
+        ll61, ll62, ll63, ll64, ll65, ll66, ll67, ll68, ll69, ll70, ll71, ll72,
+        ll73, ll74, ll75, ll76, ll77, ll78, ll79, ll80, ll81, ll82, ll83, ll84,
+        ll85, ll86, ll87, ll88, ll89, ll90, ll91, ll92, ll93, ll94, ll95, ll96,
+        ll97, ll98, ll99, ll100, ll101, ll102, ll103, ll104, ll105, ll106, ll107,
+        ll108, ll109, ll110, ll111, ll112, ll113, ll114, ll115, ll116, ll117,
+        ll118, ll119, ll120, ll121, ll122, ll123, ll124, ll125, ll126, ll127,
+        ll128, ll129, ll130, ll131, ll132, ll133, ll134, ll135, ll136, ll137,
+        ll138, ll139, ll140, ll141, ll142, ll143, ll144, ll145, ll146, ll147,
+        ll148, ll149, ll150, ll151, ll152, ll153, ll154, ll155, ll156, ll157,
+        ll158, ll159, ll160, ll161, ll162, ll163, ll164, ll165, ll166, ll167,
+        ll168, ll169, ll170, ll171, ll172, ll173, ll174, ll175, ll176, ll177,
+        ll178, ll179, ll180, ll181, ll182, ll183, ll184, ll185, ll186, ll187,
+        ll188, ll189, ll190, ll191, ll192, ll193, ll194, ll195, ll196, ll197,
+        ll198, ll199, ll200, ll201, ll202, ll203, ll204, ll205, ll206, ll207,
+        ll208, ll209, ll210, ll211, ll212, ll213, ll214, ll215, ll216, ll217,
+        ll218, ll219, ll220, ll221, ll222, ll223, ll224, ll225, ll226, ll227,
+        ll228, ll229, ll230, ll231, ll232, ll233, ll234, ll235, ll236, ll237,
+        ll238, ll239, ll240, ll241, ll242, ll243, ll244, ll245, ll246, ll247,
+        ll248, ll249, ll250, ll251, ll252, ll253, ll254, ll255, ll256, ll257,
+        ll258, ll259, ll260, ll261, ll262, ll263, ll264, ll265, ll266, ll267,
+        ll268, ll269, ll270, ll271, ll272, ll273, ll274, ll275, ll276, ll277,
+        ll278, ll279, ll280, ll281, ll282, ll283, ll284, ll285, ll286, ll287,
+        ll288, ll289, ll290, ll291, ll292, ll293, ll294, ll295, ll296, ll297,
+        ll298, ll299, ll300, ll301, ll302, ll303, ll304, ll305, ll306, ll307,
+        ll308, ll309, ll310, ll311, ll312, ll313, ll314, ll315, ll316, ll317,
+        ll318, ll319, ll320, ll321, ll322, ll323, ll324, ll325, ll326, ll327,
+        ll328, ll329, ll330, ll331, ll332, ll333, ll334, ll335, ll336, ll337,
+        ll338, ll339, ll340, ll341, ll342, ll343, ll344, ll345, ll346, ll347,
+        ll348, ll349, ll350, ll351, ll352, ll353, ll354, ll355, ll356, ll357,
+        ll358, ll359, ll360, ll361, ll362, ll363, ll364, ll365, ll366, ll367,
+        ll368, ll369, ll370, ll371, ll372, ll373, ll374, ll375, ll376, ll377,
+        ll378, ll379, ll380, ll381, ll382, ll383, ll384, ll385, ll386, ll387,
+        ll388, ll389, ll390, ll391, ll392, ll393, ll394, ll395, ll396, ll397,
+        ll398, ll399, ll400, ll401, ll402, ll403, ll404, ll405, ll406, ll407,
+        ll408, ll409, ll410, ll411, ll412, ll413, ll414, ll415, ll416, ll417,
+        ll418, ll419, ll420, ll421, ll422, ll423, ll424, ll425, ll426, ll427,
+        ll428, ll429, ll430, ll431, ll432, ll433, ll434, ll435, ll436, ll437,
+        ll438, ll439, ll440, ll441, ll442, ll443, ll444, ll445, ll446, ll447,
+        ll448, ll449, ll450, ll451, ll452, ll453, ll454, ll455, ll456, ll457,
+        ll458, ll459, ll460, ll461, ll462, ll463, ll464, ll465, ll466, ll467,
+        ll468, ll469, ll470, ll471, ll472, ll473, ll474, ll475, ll476, ll477,
+        ll478, ll479, ll480, ll481, ll482, ll483, ll484, ll485, ll486, ll487,
+        ll488, ll489, ll490, ll491, ll492, ll493, ll494, ll495, ll496, ll497,
+        ll498, ll499, ll500, ll501, ll502, ll503, ll504, ll505, ll506, ll507,
+        ll508, ll509, ll510, ll511;
+
+        if (deopt) {
+            method_entered = true;
+            synchronized(monitor) {
+                do_monitor_acquire = true;
+                UnloadedClass1 res = new UnloadedClass1(); // forces deopt with c2
+                res.field = 0; //forced deopt with c1
+                return res;
+            }
+        }
+        return null;
+    }
+
+    static boolean m2(boolean deopt) {
+        long l0, l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11, l12,
+        l13, l14, l15, l16, l17, l18, l19, l20, l21, l22, l23, l24,
+        l25, l26, l27, l28, l29, l30, l31, l32, l33, l34, l35, l36,
+        l37, l38, l39, l40, l41, l42, l43, l44, l45, l46, l47, l48,
+        l49, l50, l51, l52, l53, l54, l55, l56, l57, l58, l59, l60,
+        l61, l62, l63, l64, l65, l66, l67, l68, l69, l70, l71, l72,
+        l73, l74, l75, l76, l77, l78, l79, l80, l81, l82, l83, l84,
+        l85, l86, l87, l88, l89, l90, l91, l92, l93, l94, l95, l96,
+        l97, l98, l99, l100, l101, l102, l103, l104, l105, l106, l107,
+        l108, l109, l110, l111, l112, l113, l114, l115, l116, l117,
+        l118, l119, l120, l121, l122, l123, l124, l125, l126, l127,
+        l128, l129, l130, l131, l132, l133, l134, l135, l136, l137,
+        l138, l139, l140, l141, l142, l143, l144, l145, l146, l147,
+        l148, l149, l150, l151, l152, l153, l154, l155, l156, l157,
+        l158, l159, l160, l161, l162, l163, l164, l165, l166, l167,
+        l168, l169, l170, l171, l172, l173, l174, l175, l176, l177,
+        l178, l179, l180, l181, l182, l183, l184, l185, l186, l187,
+        l188, l189, l190, l191, l192, l193, l194, l195, l196, l197,
+        l198, l199, l200, l201, l202, l203, l204, l205, l206, l207,
+        l208, l209, l210, l211, l212, l213, l214, l215, l216, l217,
+        l218, l219, l220, l221, l222, l223, l224, l225, l226, l227,
+        l228, l229, l230, l231, l232, l233, l234, l235, l236, l237,
+        l238, l239, l240, l241, l242, l243, l244, l245, l246, l247,
+        l248, l249, l250, l251, l252, l253, l254, l255, l256, l257,
+        l258, l259, l260, l261, l262, l263, l264, l265, l266, l267,
+        l268, l269, l270, l271, l272, l273, l274, l275, l276, l277,
+        l278, l279, l280, l281, l282, l283, l284, l285, l286, l287,
+        l288, l289, l290, l291, l292, l293, l294, l295, l296, l297,
+        l298, l299, l300, l301, l302, l303, l304, l305, l306, l307,
+        l308, l309, l310, l311, l312, l313, l314, l315, l316, l317,
+        l318, l319, l320, l321, l322, l323, l324, l325, l326, l327,
+        l328, l329, l330, l331, l332, l333, l334, l335, l336, l337,
+        l338, l339, l340, l341, l342, l343, l344, l345, l346, l347,
+        l348, l349, l350, l351, l352, l353, l354, l355, l356, l357,
+        l358, l359, l360, l361, l362, l363, l364, l365, l366, l367,
+        l368, l369, l370, l371, l372, l373, l374, l375, l376, l377,
+        l378, l379, l380, l381, l382, l383, l384, l385, l386, l387,
+        l388, l389, l390, l391, l392, l393, l394, l395, l396, l397,
+        l398, l399, l400, l401, l402, l403, l404, l405, l406, l407,
+        l408, l409, l410, l411, l412, l413, l414, l415, l416, l417,
+        l418, l419, l420, l421, l422, l423, l424, l425, l426, l427,
+        l428, l429, l430, l431, l432, l433, l434, l435, l436, l437,
+        l438, l439, l440, l441, l442, l443, l444, l445, l446, l447,
+        l448, l449, l450, l451, l452, l453, l454, l455, l456, l457,
+        l458, l459, l460, l461, l462, l463, l464, l465, l466, l467,
+        l468, l469, l470, l471, l472, l473, l474, l475, l476, l477,
+        l478, l479, l480, l481, l482, l483, l484, l485, l486, l487,
+        l488, l489, l490, l491, l492, l493, l494, l495, l496, l497,
+        l498, l499, l500, l501, l502, l503, l504, l505, l506, l507,
+        l508, l509, l510, l511;
+
+        boolean do_m3 = false;
+        try {
+            do_m3 = m2(deopt);
+        } catch (StackOverflowError e) {
+            return true;
+        }
+        if (do_m3) {
+            try {
+                m1(deopt);
+            } catch (StackOverflowError e) {}
+        }
+        return false;
+    }
+
+    // Used for synchronization betwen threads
+    static volatile boolean thread_started = false;
+    static volatile boolean do_monitor_acquire = false;
+    static volatile boolean monitor_acquired = false;
+    static volatile boolean method_entered = false;
+
+    static Object monitor = new Object();
+
+    static public void main(String[] args) {
+        // get m1 compiled
+        for (int i = 0; i < 20000; i++) {
+            m1(false);
+        }
+
+        Thread thread = new Thread() {
+            public void run() {
+                thread_started = true;
+                while(!do_monitor_acquire);
+                System.out.println("Ok to try to acquire the lock");
+                synchronized(monitor) {
+                    monitor_acquired = true;
+                }
+            }
+        };
+
+        thread.setDaemon(true);
+        thread.start();
+
+        while(!thread_started);
+
+        m2(true);
+
+        if (!method_entered) {
+            System.out.println("TEST PASSED");
+            return;
+        }
+
+        for (int i = 0; i < 10; i++) {
+            System.out.println("Is lock acquired?");
+            if (monitor_acquired) {
+                System.out.println("TEST PASSED");
+                return;
+            }
+            try {
+                Thread.sleep(10000);
+            } catch(InterruptedException ie) {
+            }
+        }
+        System.out.println("TEST FAILED");
+    }
+}