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src/share/vm/opto/phase.hpp@39b01ab7035a (annotated)

src/share/vm/opto/phase.hpp

Fri, 16 Oct 2009 02:05:46 -0700

author

ysr

date

Fri, 16 Oct 2009 02:05:46 -0700

changeset 1462

39b01ab7035a

parent 1356

046932b72aa2

child 1515

7c57aead6d3e

permissions

-rw-r--r--

6888898: CMS: ReduceInitialCardMarks unsafe in the presence of cms precleaning
6889757: G1: enable card mark elision for initializing writes from compiled code (ReduceInitialCardMarks)
Summary: Defer the (compiler-elided) card-mark upon a slow-path allocation until after the store and before the next subsequent safepoint; G1 now answers yes to can_elide_tlab_write_barriers().
Reviewed-by: jcoomes, kvn, never

duke@435	1	/*
never@1356	2	* Copyright 1997-2009 Sun Microsystems, Inc. All Rights Reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
duke@435	19	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435	20	* CA 95054 USA or visit www.sun.com if you need additional information or
duke@435	21	* have any questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
duke@435	25	class Compile;
duke@435	26
duke@435	27	//------------------------------Phase------------------------------------------
duke@435	28	// Most optimizations are done in Phases. Creating a phase does any long
duke@435	29	// running analysis required, and caches the analysis in internal data
duke@435	30	// structures. Later the analysis is queried using transform() calls to
duke@435	31	// guide transforming the program. When the Phase is deleted, so is any
duke@435	32	// cached analysis info. This basic Phase class mostly contains timing and
duke@435	33	// memory management code.
duke@435	34	class Phase : public StackObj {
duke@435	35	public:
duke@435	36	enum PhaseNumber {
duke@435	37	Compiler, // Top-level compiler phase
duke@435	38	Parser, // Parse bytecodes
duke@435	39	Remove_Useless, // Remove useless nodes
duke@435	40	Optimistic, // Optimistic analysis phase
duke@435	41	GVN, // Pessimistic global value numbering phase
duke@435	42	Ins_Select, // Instruction selection phase
duke@435	43	CFG, // Build a CFG
rasbold@853	44	BlockLayout, // Linear ordering of blocks
duke@435	45	Register_Allocation, // Register allocation, duh
duke@435	46	LIVE, // Dragon-book LIVE range problem
duke@435	47	Interference_Graph, // Building the IFG
duke@435	48	Coalesce, // Coalescing copies
duke@435	49	Ideal_Loop, // Find idealized trip-counted loops
duke@435	50	Macro_Expand, // Expand macro nodes
duke@435	51	Peephole, // Apply peephole optimizations
duke@435	52	last_phase
duke@435	53	};
duke@435	54	protected:
duke@435	55	enum PhaseNumber _pnum; // Phase number (for stat gathering)
duke@435	56
duke@435	57	#ifndef PRODUCT
duke@435	58	static int _total_bytes_compiled;
duke@435	59
duke@435	60	// accumulated timers
duke@435	61	static elapsedTimer _t_totalCompilation;
duke@435	62	static elapsedTimer _t_methodCompilation;
duke@435	63	static elapsedTimer _t_stubCompilation;
duke@435	64	#endif
duke@435	65
duke@435	66	// The next timers used for LogCompilation
duke@435	67	static elapsedTimer _t_parser;
duke@435	68	static elapsedTimer _t_escapeAnalysis;
duke@435	69	static elapsedTimer _t_optimizer;
duke@435	70	static elapsedTimer _t_idealLoop;
duke@435	71	static elapsedTimer _t_ccp;
duke@435	72	static elapsedTimer _t_matcher;
duke@435	73	static elapsedTimer _t_registerAllocation;
duke@435	74	static elapsedTimer _t_output;
duke@435	75
duke@435	76	#ifndef PRODUCT
duke@435	77	static elapsedTimer _t_graphReshaping;
duke@435	78	static elapsedTimer _t_scheduler;
rasbold@853	79	static elapsedTimer _t_blockOrdering;
duke@435	80	static elapsedTimer _t_macroExpand;
duke@435	81	static elapsedTimer _t_peephole;
duke@435	82	static elapsedTimer _t_codeGeneration;
duke@435	83	static elapsedTimer _t_registerMethod;
duke@435	84	static elapsedTimer _t_temporaryTimer1;
duke@435	85	static elapsedTimer _t_temporaryTimer2;
never@1356	86	static elapsedTimer _t_idealLoopVerify;
duke@435	87
duke@435	88	// Subtimers for _t_optimizer
duke@435	89	static elapsedTimer _t_iterGVN;
duke@435	90	static elapsedTimer _t_iterGVN2;
duke@435	91
duke@435	92	// Subtimers for _t_registerAllocation
duke@435	93	static elapsedTimer _t_ctorChaitin;
duke@435	94	static elapsedTimer _t_buildIFGphysical;
duke@435	95	static elapsedTimer _t_computeLive;
duke@435	96	static elapsedTimer _t_regAllocSplit;
duke@435	97	static elapsedTimer _t_postAllocCopyRemoval;
duke@435	98	static elapsedTimer _t_fixupSpills;
duke@435	99
duke@435	100	// Subtimers for _t_output
duke@435	101	static elapsedTimer _t_instrSched;
duke@435	102	static elapsedTimer _t_buildOopMaps;
duke@435	103	#endif
duke@435	104	public:
duke@435	105	Compile * C;
duke@435	106	Phase( PhaseNumber pnum );
duke@435	107	#ifndef PRODUCT
duke@435	108	static void print_timers();
duke@435	109	#endif
duke@435	110	};