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/*
* Copyright 1999-2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*
*/
typedef void (*initializer)(void);
class AbstractCompiler : public CHeapObj {
private:
bool _is_initialized; // Mark whether compiler object is initialized
protected:
// Used for tracking global state of compiler runtime initialization
enum { uninitialized, initializing, initialized };
// This method will call the initialization method "f" once (per compiler class/subclass)
// and do so without holding any locks
void initialize_runtimes(initializer f, volatile int* state);
public:
AbstractCompiler() : _is_initialized(false) {}
// Name of this compiler
virtual const char* name() = 0;
// Missing feature tests
virtual bool supports_native() { return true; }
virtual bool supports_osr () { return true; }
#if defined(TIERED) || ( !defined(COMPILER1) && !defined(COMPILER2))
virtual bool is_c1 () { return false; }
virtual bool is_c2 () { return false; }
#else
#ifdef COMPILER1
bool is_c1 () { return true; }
bool is_c2 () { return false; }
#endif // COMPILER1
#ifdef COMPILER2
bool is_c1 () { return false; }
bool is_c2 () { return true; }
#endif // COMPILER2
#endif // TIERED
// Customization
virtual bool needs_stubs () = 0;
void mark_initialized() { _is_initialized = true; }
bool is_initialized() { return _is_initialized; }
virtual void initialize() = 0;
// Compilation entry point for methods
virtual void compile_method(ciEnv* env,
ciMethod* target,
int entry_bci) {
ShouldNotReachHere();
}
// Print compilation timers and statistics
virtual void print_timers() {
ShouldNotReachHere();
}
};
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