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src/cpu/ppc/vm/globals_ppc.hpp@04ff2f6cd0eb (annotated)

src/cpu/ppc/vm/globals_ppc.hpp

Tue, 17 Oct 2017 12:58:25 +0800

author

aoqi

date

Tue, 17 Oct 2017 12:58:25 +0800

changeset 7994

04ff2f6cd0eb

parent 7854

e8260b6328fb

parent 6876

710a3c8b516e

child 9703

2fdf635bcf28

permissions

-rw-r--r--

merge

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* Copyright 2012, 2013 SAP AG. All rights reserved.
aoqi@0	4	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	5	*
aoqi@0	6	* This code is free software; you can redistribute it and/or modify it
aoqi@0	7	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	8	* published by the Free Software Foundation.
aoqi@0	9	*
aoqi@0	10	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	11	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	12	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	13	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	14	* accompanied this code).
aoqi@0	15	*
aoqi@0	16	* You should have received a copy of the GNU General Public License version
aoqi@0	17	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	18	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	19	*
aoqi@0	20	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	21	* or visit www.oracle.com if you need additional information or have any
aoqi@0	22	* questions.
aoqi@0	23	*
aoqi@0	24	*/
aoqi@0	25
aoqi@0	26	#ifndef CPU_PPC_VM_GLOBALS_PPC_HPP
aoqi@0	27	#define CPU_PPC_VM_GLOBALS_PPC_HPP
aoqi@0	28
aoqi@0	29	#include "utilities/globalDefinitions.hpp"
aoqi@0	30	#include "utilities/macros.hpp"
aoqi@0	31
aoqi@0	32	// Sets the default values for platform dependent flags used by the runtime system.
aoqi@0	33	// (see globals.hpp)
aoqi@0	34
aoqi@0	35	define_pd_global(bool, ConvertSleepToYield, true);
aoqi@0	36	define_pd_global(bool, ShareVtableStubs, false); // Improves performance markedly for mtrt and compress.
aoqi@0	37	define_pd_global(bool, NeedsDeoptSuspend, false); // Only register window machines need this.
aoqi@0	38
aoqi@0	39
aoqi@0	40	define_pd_global(bool, ImplicitNullChecks, true); // Generate code for implicit null checks.
aoqi@0	41	define_pd_global(bool, TrapBasedNullChecks, true);
aoqi@0	42	define_pd_global(bool, UncommonNullCast, true); // Uncommon-trap NULLs passed to check cast.
aoqi@0	43
aoqi@0	44	// Use large code-entry alignment.
aoqi@0	45	define_pd_global(intx, CodeEntryAlignment, 128);
aoqi@0	46	define_pd_global(intx, OptoLoopAlignment, 16);
aoqi@0	47	define_pd_global(intx, InlineFrequencyCount, 100);
aoqi@0	48	define_pd_global(intx, InlineSmallCode, 1500);
aoqi@0	49
aoqi@0	50	define_pd_global(intx, PreInflateSpin, 10);
aoqi@0	51
aoqi@0	52	// Flags for template interpreter.
aoqi@0	53	define_pd_global(bool, RewriteBytecodes, true);
aoqi@0	54	define_pd_global(bool, RewriteFrequentPairs, true);
aoqi@0	55
aoqi@0	56	define_pd_global(bool, UseMembar, false);
aoqi@0	57
zmajo@7854	58	define_pd_global(bool, PreserveFramePointer, false);
zmajo@7854	59
aoqi@0	60	// GC Ergo Flags
aoqi@0	61	define_pd_global(uintx, CMSYoungGenPerWorker, 16*M); // Default max size of CMS young gen, per GC worker thread.
aoqi@0	62
aoqi@0	63	define_pd_global(uintx, TypeProfileLevel, 0);
aoqi@0	64
aoqi@0	65	// Platform dependent flag handling: flags only defined on this platform.
aoqi@0	66	#define ARCH_FLAGS(develop, product, diagnostic, experimental, notproduct) \
aoqi@0	67	\
aoqi@0	68	/* Load poll address from thread. This is used to implement per-thread */ \
aoqi@0	69	/* safepoints on platforms != IA64. */ \
aoqi@0	70	product(bool, LoadPollAddressFromThread, false, \
aoqi@0	71	"Load polling page address from thread object (required for " \
aoqi@0	72	"per-thread safepoints on platforms != IA64)") \
aoqi@0	73	\
aoqi@0	74	product(uintx, PowerArchitecturePPC64, 0, \
aoqi@0	75	"CPU Version: x for PowerX. Currently recognizes Power5 to " \
aoqi@0	76	"Power7. Default is 0. CPUs newer than Power7 will be " \
aoqi@0	77	"recognized as Power7.") \
aoqi@0	78	\
aoqi@0	79	/* Reoptimize code-sequences of calls at runtime, e.g. replace an */ \
aoqi@0	80	/* indirect call by a direct call. */ \
aoqi@0	81	product(bool, ReoptimizeCallSequences, true, \
aoqi@0	82	"Reoptimize code-sequences of calls at runtime.") \
aoqi@0	83	\
aoqi@0	84	product(bool, UseLoadInstructionsForStackBangingPPC64, false, \
aoqi@0	85	"Use load instructions for stack banging.") \
aoqi@0	86	\
aoqi@0	87	/* special instructions */ \
aoqi@0	88	\
aoqi@0	89	product(bool, UseCountLeadingZerosInstructionsPPC64, true, \
aoqi@0	90	"Use count leading zeros instructions.") \
aoqi@0	91	\
aoqi@0	92	product(bool, UseExtendedLoadAndReserveInstructionsPPC64, false, \
aoqi@0	93	"Use extended versions of load-and-reserve instructions.") \
aoqi@0	94	\
aoqi@0	95	product(bool, UseRotateAndMaskInstructionsPPC64, true, \
aoqi@0	96	"Use rotate and mask instructions.") \
aoqi@0	97	\
aoqi@0	98	product(bool, UseStaticBranchPredictionInCompareAndSwapPPC64, true, \
aoqi@0	99	"Use static branch prediction hints in CAS operations.") \
aoqi@0	100	product(bool, UseStaticBranchPredictionForUncommonPathsPPC64, false, \
aoqi@0	101	"Use static branch prediction hints for uncommon paths.") \
aoqi@0	102	\
aoqi@0	103	product(bool, UsePower6SchedulerPPC64, false, \
aoqi@0	104	"Use Power6 Scheduler.") \
aoqi@0	105	\
aoqi@0	106	product(bool, InsertEndGroupPPC64, false, \
aoqi@0	107	"Insert EndGroup instructions to optimize for Power6.") \
aoqi@0	108	\
aoqi@0	109	/* Trap based checks. */ \
aoqi@0	110	/* Trap based checks use the ppc trap instructions to check certain */ \
aoqi@0	111	/* conditions. This instruction raises a SIGTRAP caught by the */ \
aoqi@0	112	/* exception handler of the VM. */ \
aoqi@0	113	product(bool, UseSIGTRAP, true, \
aoqi@0	114	"Allow trap instructions that make use of SIGTRAP. Use this to " \
aoqi@0	115	"switch off all optimizations requiring SIGTRAP.") \
aoqi@0	116	product(bool, TrapBasedICMissChecks, true, \
aoqi@0	117	"Raise and handle SIGTRAP if inline cache miss detected.") \
aoqi@0	118	product(bool, TrapBasedNotEntrantChecks, true, \
aoqi@0	119	"Raise and handle SIGTRAP if calling not entrant or zombie" \
aoqi@0	120	" method.") \
aoqi@0	121	product(bool, TraceTraps, false, "Trace all traps the signal handler" \
aoqi@0	122	"handles.") \
aoqi@0	123	\
aoqi@0	124	product(bool, ZapMemory, false, "Write 0x0101... to empty memory." \
aoqi@0	125	" Use this to ease debugging.") \
aoqi@0	126
aoqi@0	127
aoqi@0	128	#endif // CPU_PPC_VM_GLOBALS_PPC_HPP