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6953144: Tiered compilation

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Infrastructure for tiered compilation support (interpreter + c1 + c2) for 32 and 64 bit. Simple tiered policy implementation.

Reviewed-by: kvn, never, phh, twisti
This commit is contained in:
Igor Veresov 2010-09-03 17:51:07 -07:00
parent 6e78f6cb4b
commit 2c66a6c3fd
104 changed files with 7720 additions and 1701 deletions
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18
hotspot/src/share/vm/ci/ciMethodData.hpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2001, 2008, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2001, 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
@ -162,6 +162,12 @@ private:
// Maturity of the oop when the snapshot is taken.
int _current_mileage;
// These counters hold the age of MDO in tiered. In tiered we can have the same method
// running at different compilation levels concurrently. So, in order to precisely measure
// its maturity we need separate counters.
int _invocation_counter;
int _backedge_counter;
// Coherent snapshot of original header.
methodDataOopDesc _orig;
@ -223,6 +229,16 @@ public:
int creation_mileage() { return _orig.creation_mileage(); }
int current_mileage() { return _current_mileage; }
int invocation_count() { return _invocation_counter; }
int backedge_count() { return _backedge_counter; }
// Transfer information about the method to methodDataOop.
// would_profile means we would like to profile this method,
// meaning it's not trivial.
void set_would_profile(bool p);
// Also set the numer of loops and blocks in the method.
// Again, this is used to determine if a method is trivial.
void set_compilation_stats(short loops, short blocks);
void load_data();
// Convert a dp (data pointer) to a di (data index).