1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/vm/compiler/abstractCompiler.hpp Sat Dec 01 00:00:00 2007 +0000
1.3 @@ -0,0 +1,82 @@
1.4 +/*
1.5 + * Copyright 1999-2007 Sun Microsystems, Inc. All Rights Reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
1.23 + * CA 95054 USA or visit www.sun.com if you need additional information or
1.24 + * have any questions.
1.25 + *
1.26 + */
1.27 +
1.28 +typedef void (*initializer)(void);
1.29 +
1.30 +class AbstractCompiler : public CHeapObj {
1.31 + private:
1.32 + bool _is_initialized; // Mark whether compiler object is initialized
1.33 +
1.34 + protected:
1.35 + // Used for tracking global state of compiler runtime initialization
1.36 + enum { uninitialized, initializing, initialized };
1.37 +
1.38 + // This method will call the initialization method "f" once (per compiler class/subclass)
1.39 + // and do so without holding any locks
1.40 + void initialize_runtimes(initializer f, volatile int* state);
1.41 +
1.42 + public:
1.43 + AbstractCompiler() : _is_initialized(false) {}
1.44 +
1.45 + // Name of this compiler
1.46 + virtual const char* name() = 0;
1.47 +
1.48 + // Missing feature tests
1.49 + virtual bool supports_native() { return true; }
1.50 + virtual bool supports_osr () { return true; }
1.51 +#if defined(TIERED) || ( !defined(COMPILER1) && !defined(COMPILER2))
1.52 + virtual bool is_c1 () { return false; }
1.53 + virtual bool is_c2 () { return false; }
1.54 +#else
1.55 +#ifdef COMPILER1
1.56 + bool is_c1 () { return true; }
1.57 + bool is_c2 () { return false; }
1.58 +#endif // COMPILER1
1.59 +#ifdef COMPILER2
1.60 + bool is_c1 () { return false; }
1.61 + bool is_c2 () { return true; }
1.62 +#endif // COMPILER2
1.63 +#endif // TIERED
1.64 +
1.65 + // Customization
1.66 + virtual bool needs_stubs () = 0;
1.67 +
1.68 + void mark_initialized() { _is_initialized = true; }
1.69 + bool is_initialized() { return _is_initialized; }
1.70 +
1.71 + virtual void initialize() = 0;
1.72 +
1.73 + // Compilation entry point for methods
1.74 + virtual void compile_method(ciEnv* env,
1.75 + ciMethod* target,
1.76 + int entry_bci) {
1.77 + ShouldNotReachHere();
1.78 + }
1.79 +
1.80 +
1.81 + // Print compilation timers and statistics
1.82 + virtual void print_timers() {
1.83 + ShouldNotReachHere();
1.84 + }
1.85 +};
