--- a/hotspot/src/share/vm/interpreter/invocationCounter.hpp Thu Sep 02 11:40:02 2010 -0700
+++ b/hotspot/src/share/vm/interpreter/invocationCounter.hpp Fri Sep 03 17:51:07 2010 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 1997, 2006, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2010, 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
@@ -43,7 +43,6 @@
number_of_count_bits = BitsPerInt - number_of_noncount_bits,
state_limit = nth_bit(number_of_state_bits),
count_grain = nth_bit(number_of_state_bits + number_of_carry_bits),
- count_limit = nth_bit(number_of_count_bits - 1),
carry_mask = right_n_bits(number_of_carry_bits) << number_of_state_bits,
state_mask = right_n_bits(number_of_state_bits),
status_mask = right_n_bits(number_of_state_bits + number_of_carry_bits),
@@ -52,18 +51,16 @@
public:
static int InterpreterInvocationLimit; // CompileThreshold scaled for interpreter use
- static int Tier1InvocationLimit; // CompileThreshold scaled for tier1 use
- static int Tier1BackEdgeLimit; // BackEdgeThreshold scaled for tier1 use
-
static int InterpreterBackwardBranchLimit; // A separate threshold for on stack replacement
-
static int InterpreterProfileLimit; // Profiling threshold scaled for interpreter use
typedef address (*Action)(methodHandle method, TRAPS);
enum PublicConstants {
count_increment = count_grain, // use this value to increment the 32bit _counter word
- count_mask_value = count_mask // use this value to mask the backedge counter
+ count_mask_value = count_mask, // use this value to mask the backedge counter
+ count_shift = number_of_noncount_bits,
+ count_limit = nth_bit(number_of_count_bits - 1)
};
enum State {
@@ -79,6 +76,7 @@
inline void set(State state, int count); // sets state and counter
inline void decay(); // decay counter (divide by two)
void set_carry(); // set the sticky carry bit
+ void set_carry_flag() { _counter |= carry_mask; }
// Accessors
State state() const { return (State)(_counter & state_mask); }
@@ -135,3 +133,4 @@
if (c > 0 && new_count == 0) new_count = 1;
set(state(), new_count);
}
+