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src/share/vm/opto/c2_globals.hpp@752ba2e5f6d0 (annotated)

src/share/vm/opto/c2_globals.hpp

Tue, 25 Feb 2014 15:11:18 -0800

author

kvn

date

Tue, 25 Feb 2014 15:11:18 -0800

changeset 6507

752ba2e5f6d0

parent 6506

f040cf9fc9c0

parent 6319

51e1bb81df86

child 6513

bbfbe9b06038

permissions

-rw-r--r--

Merge

duke@435	1	/*
drchase@5285	2	* Copyright (c) 2000, 2013, Oracle and/or its affiliates. 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	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
stefank@2314	25	#ifndef SHARE_VM_OPTO_C2_GLOBALS_HPP
stefank@2314	26	#define SHARE_VM_OPTO_C2_GLOBALS_HPP
stefank@2314	27
stefank@2314	28	#include "runtime/globals.hpp"
stefank@2314	29	#ifdef TARGET_ARCH_x86
stefank@2314	30	# include "c2_globals_x86.hpp"
stefank@2314	31	#endif
stefank@2314	32	#ifdef TARGET_ARCH_sparc
stefank@2314	33	# include "c2_globals_sparc.hpp"
stefank@2314	34	#endif
bobv@2508	35	#ifdef TARGET_ARCH_arm
bobv@2508	36	# include "c2_globals_arm.hpp"
bobv@2508	37	#endif
goetz@6441	38	#ifdef TARGET_ARCH_ppc
goetz@6441	39	# include "c2_globals_ppc.hpp"
goetz@6441	40	#endif
stefank@2314	41	#ifdef TARGET_OS_FAMILY_linux
stefank@2314	42	# include "c2_globals_linux.hpp"
stefank@2314	43	#endif
stefank@2314	44	#ifdef TARGET_OS_FAMILY_solaris
stefank@2314	45	# include "c2_globals_solaris.hpp"
stefank@2314	46	#endif
stefank@2314	47	#ifdef TARGET_OS_FAMILY_windows
stefank@2314	48	# include "c2_globals_windows.hpp"
stefank@2314	49	#endif
goetz@6461	50	#ifdef TARGET_OS_FAMILY_aix
goetz@6461	51	# include "c2_globals_aix.hpp"
goetz@6461	52	#endif
never@3156	53	#ifdef TARGET_OS_FAMILY_bsd
never@3156	54	# include "c2_globals_bsd.hpp"
never@3156	55	#endif
stefank@2314	56
duke@435	57	//
duke@435	58	// Defines all globals flags used by the server compiler.
duke@435	59	//
duke@435	60
never@1515	61	#define C2_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct) \
duke@435	62	\
shade@4691	63	develop(bool, StressLCM, false, \
shade@4691	64	"Randomize instruction scheduling in LCM") \
shade@4691	65	\
shade@4691	66	develop(bool, StressGCM, false, \
shade@4691	67	"Randomize instruction scheduling in GCM") \
shade@4691	68	\
duke@435	69	notproduct(intx, CompileZapFirst, 0, \
duke@435	70	"If +ZapDeadCompiledLocals, " \
duke@435	71	"skip this many before compiling in zap calls") \
duke@435	72	\
duke@435	73	notproduct(intx, CompileZapLast, -1, \
duke@435	74	"If +ZapDeadCompiledLocals, " \
duke@435	75	"compile this many after skipping (incl. skip count, -1 = all)") \
duke@435	76	\
duke@435	77	notproduct(intx, ZapDeadCompiledLocalsFirst, 0, \
duke@435	78	"If +ZapDeadCompiledLocals, " \
duke@435	79	"skip this many before really doing it") \
duke@435	80	\
duke@435	81	notproduct(intx, ZapDeadCompiledLocalsLast, -1, \
duke@435	82	"If +ZapDeadCompiledLocals, " \
duke@435	83	"do this many after skipping (incl. skip count, -1 = all)") \
duke@435	84	\
duke@435	85	develop(intx, OptoPrologueNops, 0, \
duke@435	86	"Insert this many extra nop instructions " \
duke@435	87	"in the prologue of every nmethod") \
duke@435	88	\
duke@435	89	product_pd(intx, InteriorEntryAlignment, \
duke@435	90	"Code alignment for interior entry points " \
duke@435	91	"in generated code (in bytes)") \
duke@435	92	\
duke@435	93	product(intx, MaxLoopPad, (OptoLoopAlignment-1), \
duke@435	94	"Align a loop if padding size in bytes is less or equal to this value") \
duke@435	95	\
kvn@3882	96	product(intx, MaxVectorSize, 32, \
kvn@3882	97	"Max vector size in bytes, " \
kvn@3882	98	"actual size could be less depending on elements type") \
kvn@3882	99	\
kvn@4105	100	product(bool, AlignVector, true, \
kvn@3882	101	"Perform vector store/load alignment in loop") \
kvn@3882	102	\
duke@435	103	product(intx, NumberOfLoopInstrToAlign, 4, \
duke@435	104	"Number of first instructions in a loop to align") \
duke@435	105	\
duke@435	106	notproduct(intx, IndexSetWatch, 0, \
duke@435	107	"Trace all operations on this IndexSet (-1 means all, 0 none)") \
duke@435	108	\
duke@435	109	develop(intx, OptoNodeListSize, 4, \
duke@435	110	"Starting allocation size of Node_List data structures") \
duke@435	111	\
duke@435	112	develop(intx, OptoBlockListSize, 8, \
duke@435	113	"Starting allocation size of Block_List data structures") \
duke@435	114	\
duke@435	115	develop(intx, OptoPeepholeAt, -1, \
duke@435	116	"Apply peephole optimizations to this peephole rule") \
duke@435	117	\
duke@435	118	notproduct(bool, PrintIdeal, false, \
duke@435	119	"Print ideal graph before code generation") \
duke@435	120	\
duke@435	121	notproduct(bool, PrintOpto, false, \
duke@435	122	"Print compiler2 attempts") \
duke@435	123	\
duke@435	124	notproduct(bool, PrintOptoInlining, false, \
duke@435	125	"Print compiler2 inlining decisions") \
duke@435	126	\
duke@435	127	notproduct(bool, VerifyOpto, false, \
duke@435	128	"Apply more time consuming verification during compilation") \
duke@435	129	\
bharadwaj@4315	130	notproduct(bool, VerifyIdealNodeCount, false, \
bharadwaj@4315	131	"Verify that tracked dead ideal node count is accurate") \
bharadwaj@4315	132	\
bharadwaj@4315	133	notproduct(bool, PrintIdealNodeCount, false, \
bharadwaj@4315	134	"Print liveness counts of ideal nodes") \
bharadwaj@4315	135	\
duke@435	136	notproduct(bool, VerifyOptoOopOffsets, false, \
duke@435	137	"Check types of base addresses in field references") \
duke@435	138	\
duke@435	139	develop(bool, IdealizedNumerics, false, \
duke@435	140	"Check performance difference allowing FP " \
duke@435	141	"associativity and commutativity...") \
duke@435	142	\
duke@435	143	develop(bool, OptoBreakpoint, false, \
duke@435	144	"insert breakpoint at method entry") \
duke@435	145	\
duke@435	146	notproduct(bool, OptoBreakpointOSR, false, \
duke@435	147	"insert breakpoint at osr method entry") \
duke@435	148	\
duke@435	149	notproduct(intx, BreakAtNode, 0, \
duke@435	150	"Break at construction of this Node (either _idx or _debug_idx)") \
duke@435	151	\
duke@435	152	notproduct(bool, OptoBreakpointC2R, false, \
duke@435	153	"insert breakpoint at runtime stub entry") \
duke@435	154	\
duke@435	155	notproduct(bool, OptoNoExecute, false, \
duke@435	156	"Attempt to parse and compile but do not execute generated code") \
duke@435	157	\
duke@435	158	notproduct(bool, PrintOptoStatistics, false, \
duke@435	159	"Print New compiler statistics") \
duke@435	160	\
duke@435	161	notproduct(bool, PrintOptoAssembly, false, \
duke@435	162	"Print New compiler assembly output") \
duke@435	163	\
duke@435	164	develop_pd(bool, OptoPeephole, \
duke@435	165	"Apply peephole optimizations after register allocation") \
duke@435	166	\
duke@435	167	develop(bool, OptoRemoveUseless, true, \
duke@435	168	"Remove useless nodes after parsing") \
duke@435	169	\
duke@435	170	notproduct(bool, PrintFrameConverterAssembly, false, \
duke@435	171	"Print New compiler assembly output for frame converters") \
duke@435	172	\
duke@435	173	notproduct(bool, PrintParseStatistics, false, \
duke@435	174	"Print nodes, transforms and new values made per bytecode parsed")\
duke@435	175	\
duke@435	176	notproduct(bool, PrintOptoPeephole, false, \
duke@435	177	"Print New compiler peephole replacements") \
duke@435	178	\
duke@435	179	develop(bool, PrintCFGBlockFreq, false, \
duke@435	180	"Print CFG block freqencies") \
duke@435	181	\
duke@435	182	develop(bool, TraceOptoParse, false, \
duke@435	183	"Trace bytecode parse and control-flow merge") \
duke@435	184	\
duke@435	185	product_pd(intx, LoopUnrollLimit, \
duke@435	186	"Unroll loop bodies with node count less than this") \
duke@435	187	\
kvn@5513	188	product(intx, LoopMaxUnroll, 16, \
kvn@5513	189	"Maximum number of unrolls for main loop") \
kvn@5513	190	\
duke@435	191	product(intx, LoopUnrollMin, 4, \
duke@435	192	"Minimum number of unroll loop bodies before checking progress" \
duke@435	193	"of rounds of unroll,optimize,..") \
duke@435	194	\
duke@435	195	develop(intx, UnrollLimitForProfileCheck, 1, \
duke@435	196	"Don't use profile_trip_cnt() to restrict unrolling until " \
duke@435	197	"unrolling would push the number of unrolled iterations above " \
duke@435	198	"UnrollLimitForProfileCheck. A higher value allows more " \
duke@435	199	"unrolling. Zero acts as a very large value." ) \
duke@435	200	\
duke@435	201	product(intx, MultiArrayExpandLimit, 6, \
duke@435	202	"Maximum number of individual allocations in an inline-expanded " \
duke@435	203	"multianewarray instruction") \
duke@435	204	\
duke@435	205	notproduct(bool, TraceProfileTripCount, false, \
duke@435	206	"Trace profile loop trip count information") \
duke@435	207	\
cfang@1607	208	product(bool, UseLoopPredicate, true, \
cfang@1607	209	"Generate a predicate to select fast/slow loop versions") \
cfang@1607	210	\
cfang@1607	211	develop(bool, TraceLoopPredicate, false, \
cfang@1607	212	"Trace generation of loop predicates") \
cfang@1607	213	\
kvn@2665	214	develop(bool, TraceLoopOpts, false, \
kvn@2665	215	"Trace executed loop optimizations") \
kvn@2665	216	\
kvn@2877	217	diagnostic(bool, LoopLimitCheck, true, \
kvn@2877	218	"Generate a loop limits check for overflow") \
kvn@2877	219	\
kvn@2877	220	develop(bool, TraceLoopLimitCheck, false, \
kvn@2877	221	"Trace generation of loop limits checks") \
kvn@2877	222	\
kvn@2877	223	diagnostic(bool, RangeLimitCheck, true, \
kvn@2877	224	"Additional overflow checks during range check elimination") \
kvn@2877	225	\
kvn@2877	226	develop(bool, TraceRangeLimitCheck, false, \
kvn@2877	227	"Trace additional overflow checks in RCE") \
kvn@2877	228	\
kvn@2877	229	diagnostic(bool, UnrollLimitCheck, true, \
kvn@2877	230	"Additional overflow checks during loop unroll") \
kvn@2877	231	\
goetz@6487	232	/* OptimizeFill not yet supported on PowerPC. */ \
goetz@6487	233	product(bool, OptimizeFill, true PPC64_ONLY(&& false), \
never@2118	234	"convert fill/copy loops into intrinsic") \
never@2118	235	\
never@2118	236	develop(bool, TraceOptimizeFill, false, \
never@2118	237	"print detailed information about fill conversion") \
never@2118	238	\
duke@435	239	develop(bool, OptoCoalesce, true, \
duke@435	240	"Use Conservative Copy Coalescing in the Register Allocator") \
duke@435	241	\
duke@435	242	develop(bool, UseUniqueSubclasses, true, \
duke@435	243	"Narrow an abstract reference to the unique concrete subclass") \
duke@435	244	\
duke@435	245	develop(bool, UseExactTypes, true, \
duke@435	246	"Use exact types to eliminate array store checks and v-calls") \
duke@435	247	\
duke@435	248	product(intx, TrackedInitializationLimit, 50, \
duke@435	249	"When initializing fields, track up to this many words") \
duke@435	250	\
duke@435	251	product(bool, ReduceFieldZeroing, true, \
duke@435	252	"When initializing fields, try to avoid needless zeroing") \
duke@435	253	\
duke@435	254	product(bool, ReduceInitialCardMarks, true, \
duke@435	255	"When initializing fields, try to avoid needless card marks") \
duke@435	256	\
duke@435	257	product(bool, ReduceBulkZeroing, true, \
duke@435	258	"When bulk-initializing, try to avoid needless zeroing") \
duke@435	259	\
never@2085	260	product(bool, UseFPUForSpilling, false, \
never@2085	261	"Spill integer registers to FPU instead of stack when possible") \
never@2085	262	\
duke@435	263	develop_pd(intx, RegisterCostAreaRatio, \
duke@435	264	"Spill selection in reg allocator: scale area by (X/64K) before " \
duke@435	265	"adding cost") \
duke@435	266	\
duke@435	267	develop_pd(bool, UseCISCSpill, \
duke@435	268	"Use ADLC supplied cisc instructions during allocation") \
duke@435	269	\
duke@435	270	notproduct(bool, VerifyGraphEdges , false, \
duke@435	271	"Verify Bi-directional Edges") \
duke@435	272	\
duke@435	273	notproduct(bool, VerifyDUIterators, true, \
duke@435	274	"Verify the safety of all iterations of Bi-directional Edges") \
duke@435	275	\
duke@435	276	notproduct(bool, VerifyHashTableKeys, true, \
duke@435	277	"Verify the immutability of keys in the VN hash tables") \
duke@435	278	\
kvn@985	279	notproduct(bool, VerifyRegisterAllocator , false, \
kvn@985	280	"Verify Register Allocator") \
kvn@985	281	\
duke@435	282	develop_pd(intx, FLOATPRESSURE, \
duke@435	283	"Number of float LRG's that constitute high register pressure") \
duke@435	284	\
duke@435	285	develop_pd(intx, INTPRESSURE, \
duke@435	286	"Number of integer LRG's that constitute high register pressure") \
duke@435	287	\
duke@435	288	notproduct(bool, TraceOptoPipelining, false, \
duke@435	289	"Trace pipelining information") \
duke@435	290	\
duke@435	291	notproduct(bool, TraceOptoOutput, false, \
duke@435	292	"Trace pipelining information") \
duke@435	293	\
duke@435	294	product_pd(bool, OptoScheduling, \
duke@435	295	"Instruction Scheduling after register allocation") \
duke@435	296	\
duke@435	297	product(bool, PartialPeelLoop, true, \
duke@435	298	"Partial peel (rotate) loops") \
duke@435	299	\
duke@435	300	product(intx, PartialPeelNewPhiDelta, 0, \
duke@435	301	"Additional phis that can be created by partial peeling") \
duke@435	302	\
duke@435	303	notproduct(bool, TracePartialPeeling, false, \
duke@435	304	"Trace partial peeling (loop rotation) information") \
duke@435	305	\
duke@435	306	product(bool, PartialPeelAtUnsignedTests, true, \
duke@435	307	"Partial peel at unsigned tests if no signed test exists") \
duke@435	308	\
duke@435	309	product(bool, ReassociateInvariants, true, \
duke@435	310	"Enable reassociation of expressions with loop invariants.") \
duke@435	311	\
duke@435	312	product(bool, LoopUnswitching, true, \
duke@435	313	"Enable loop unswitching (a form of invariant test hoisting)") \
duke@435	314	\
duke@435	315	notproduct(bool, TraceLoopUnswitching, false, \
duke@435	316	"Trace loop unswitching") \
duke@435	317	\
duke@435	318	product(bool, UseSuperWord, true, \
duke@435	319	"Transform scalar operations into superword operations") \
duke@435	320	\
duke@435	321	develop(bool, SuperWordRTDepCheck, false, \
duke@435	322	"Enable runtime dependency checks.") \
duke@435	323	\
kvn@3886	324	notproduct(bool, TraceSuperWord, false, \
duke@435	325	"Trace superword transforms") \
duke@435	326	\
kvn@3886	327	notproduct(bool, TraceNewVectors, false, \
kvn@3886	328	"Trace creation of Vector nodes") \
kvn@3886	329	\
duke@435	330	product_pd(bool, OptoBundling, \
duke@435	331	"Generate nops to fill i-cache lines") \
duke@435	332	\
duke@435	333	product_pd(intx, ConditionalMoveLimit, \
duke@435	334	"Limit of ops to make speculative when using CMOVE") \
duke@435	335	\
duke@435	336	/* Set BranchOnRegister == false. See 4965987. */ \
duke@435	337	product(bool, BranchOnRegister, false, \
duke@435	338	"Use Sparc V9 branch-on-register opcodes") \
duke@435	339	\
duke@435	340	develop(bool, SparcV9RegsHiBitsZero, true, \
duke@435	341	"Assume Sparc V9 I&L registers on V8+ systems are zero-extended") \
duke@435	342	\
twisti@2350	343	product(bool, UseRDPCForConstantTableBase, false, \
twisti@2350	344	"Use Sparc RDPC instruction for the constant table base.") \
twisti@2350	345	\
duke@435	346	develop(intx, PrintIdealGraphLevel, 0, \
duke@435	347	"Print ideal graph to XML file / network interface. " \
duke@435	348	"By default attempts to connect to the visualizer on a socket.") \
duke@435	349	\
duke@435	350	develop(intx, PrintIdealGraphPort, 4444, \
duke@435	351	"Ideal graph printer to network port") \
duke@435	352	\
kvn@869	353	notproduct(ccstr, PrintIdealGraphAddress, "127.0.0.1", \
duke@435	354	"IP address to connect to visualizer") \
duke@435	355	\
kvn@869	356	notproduct(ccstr, PrintIdealGraphFile, NULL, \
duke@435	357	"File to dump ideal graph to. If set overrides the " \
duke@435	358	"use of the network") \
duke@435	359	\
duke@435	360	product(bool, UseBimorphicInlining, true, \
duke@435	361	"Profiling based inlining for two receivers") \
duke@435	362	\
duke@435	363	product(bool, UseOnlyInlinedBimorphic, true, \
duke@435	364	"Don't use BimorphicInlining if can't inline a second method") \
duke@435	365	\
duke@435	366	product(bool, InsertMemBarAfterArraycopy, true, \
duke@435	367	"Insert memory barrier after arraycopy call") \
duke@435	368	\
kvn@2040	369	develop(bool, SubsumeLoads, true, \
kvn@2040	370	"Attempt to compile while subsuming loads into machine instructions.") \
kvn@2040	371	\
kvn@2040	372	develop(bool, StressRecompilation, false, \
kvn@2040	373	"Recompile each compiled method without subsuming loads or escape analysis.") \
kvn@2040	374	\
duke@435	375	develop(intx, ImplicitNullCheckThreshold, 3, \
duke@435	376	"Don't do implicit null checks if NPE's in a method exceeds limit") \
duke@435	377	\
duke@435	378	product(intx, LoopOptsCount, 43, \
duke@435	379	"Set level of loop optimization for tier 1 compiles") \
duke@435	380	\
duke@435	381	/* controls for heat-based inlining */ \
duke@435	382	\
duke@435	383	develop(intx, NodeCountInliningCutoff, 18000, \
duke@435	384	"If parser node generation exceeds limit stop inlining") \
duke@435	385	\
duke@435	386	develop(intx, NodeCountInliningStep, 1000, \
duke@435	387	"Target size of warm calls inlined between optimization passes") \
duke@435	388	\
duke@435	389	develop(bool, InlineWarmCalls, false, \
duke@435	390	"Use a heat-based priority queue to govern inlining") \
duke@435	391	\
duke@435	392	develop(intx, HotCallCountThreshold, 999999, \
duke@435	393	"large numbers of calls (per method invocation) force hotness") \
duke@435	394	\
duke@435	395	develop(intx, HotCallProfitThreshold, 999999, \
duke@435	396	"highly profitable inlining opportunities force hotness") \
duke@435	397	\
duke@435	398	develop(intx, HotCallTrivialWork, -1, \
duke@435	399	"trivial execution time (no larger than this) forces hotness") \
duke@435	400	\
duke@435	401	develop(intx, HotCallTrivialSize, -1, \
duke@435	402	"trivial methods (no larger than this) force calls to be hot") \
duke@435	403	\
duke@435	404	develop(intx, WarmCallMinCount, -1, \
duke@435	405	"number of calls (per method invocation) to enable inlining") \
duke@435	406	\
duke@435	407	develop(intx, WarmCallMinProfit, -1, \
duke@435	408	"number of calls (per method invocation) to enable inlining") \
duke@435	409	\
duke@435	410	develop(intx, WarmCallMaxWork, 999999, \
duke@435	411	"execution time of the largest inlinable method") \
duke@435	412	\
duke@435	413	develop(intx, WarmCallMaxSize, 999999, \
duke@435	414	"size of the largest inlinable method") \
duke@435	415	\
drchase@5285	416	product(intx, MaxNodeLimit, 80000, \
duke@435	417	"Maximum number of nodes") \
duke@435	418	\
drchase@5285	419	product(intx, NodeLimitFudgeFactor, 2000, \
duke@435	420	"Fudge Factor for certain optimizations") \
duke@435	421	\
duke@435	422	product(bool, UseJumpTables, true, \
duke@435	423	"Use JumpTables instead of a binary search tree for switches") \
duke@435	424	\
duke@435	425	product(bool, UseDivMod, true, \
duke@435	426	"Use combined DivMod instruction if available") \
duke@435	427	\
adlertz@5660	428	product_pd(intx, MinJumpTableSize, \
duke@435	429	"Minimum number of targets in a generated jump table") \
duke@435	430	\
duke@435	431	product(intx, MaxJumpTableSize, 65000, \
duke@435	432	"Maximum number of targets in a generated jump table") \
duke@435	433	\
duke@435	434	product(intx, MaxJumpTableSparseness, 5, \
duke@435	435	"Maximum sparseness for jumptables") \
duke@435	436	\
duke@435	437	product(bool, EliminateLocks, true, \
duke@435	438	"Coarsen locks when possible") \
duke@435	439	\
kvn@3406	440	product(bool, EliminateNestedLocks, true, \
kvn@3406	441	"Eliminate nested locks of the same object when possible") \
kvn@3406	442	\
duke@435	443	notproduct(bool, PrintLockStatistics, false, \
duke@435	444	"Print precise statistics on the dynamic lock usage") \
duke@435	445	\
duke@435	446	diagnostic(bool, PrintPreciseBiasedLockingStatistics, false, \
duke@435	447	"Print per-lock-site statistics of biased locking in JVM") \
duke@435	448	\
duke@435	449	notproduct(bool, PrintEliminateLocks, false, \
duke@435	450	"Print out when locks are eliminated") \
duke@435	451	\
kvn@6293	452	product(bool, EliminateAutoBox, false, \
kvn@5110	453	"Control optimizations for autobox elimination") \
never@452	454	\
vlivanov@5658	455	experimental(bool, UseImplicitStableValues, false, \
vlivanov@5658	456	"Mark well-known stable fields as such (e.g. String.value)") \
vlivanov@5658	457	\
never@452	458	product(intx, AutoBoxCacheMax, 128, \
never@452	459	"Sets max value cached by the java.lang.Integer autobox cache") \
never@452	460	\
kvn@5110	461	experimental(bool, AggressiveUnboxing, false, \
kvn@5110	462	"Control optimizations for aggressive boxing elimination") \
kvn@5110	463	\
goetz@6478	464	develop(bool, TracePostallocExpand, false, "Trace expanding nodes after" \
goetz@6478	465	" register allocation.") \
goetz@6478	466	\
kvn@1365	467	product(bool, DoEscapeAnalysis, true, \
duke@435	468	"Perform escape analysis") \
duke@435	469	\
kvn@4206	470	develop(bool, ExitEscapeAnalysisOnTimeout, true, \
kvn@4206	471	"Exit or throw assert in EA when it reaches time limit") \
kvn@4206	472	\
duke@435	473	notproduct(bool, PrintEscapeAnalysis, false, \
duke@435	474	"Print the results of escape analysis") \
duke@435	475	\
duke@435	476	product(bool, EliminateAllocations, true, \
duke@435	477	"Use escape analysis to eliminate allocations") \
duke@435	478	\
kvn@500	479	notproduct(bool, PrintEliminateAllocations, false, \
kvn@500	480	"Print out when allocations are eliminated") \
kvn@500	481	\
kvn@500	482	product(intx, EliminateAllocationArraySizeLimit, 64, \
kvn@500	483	"Array size (number of elements) limit for scalar replacement") \
kvn@500	484	\
kvn@3309	485	product(bool, OptimizePtrCompare, true, \
kvn@3309	486	"Use escape analysis to optimize pointers compare") \
kvn@3309	487	\
kvn@3309	488	notproduct(bool, PrintOptimizePtrCompare, false, \
kvn@3309	489	"Print information about optimized pointers compare") \
kvn@3309	490	\
kvn@3651	491	notproduct(bool, VerifyConnectionGraph , true, \
kvn@3651	492	"Verify Connection Graph construction in Escape Analysis") \
kvn@3651	493	\
kvn@1108	494	product(bool, UseOptoBiasInlining, true, \
kvn@855	495	"Generate biased locking code in C2 ideal graph") \
kvn@855	496	\
never@3235	497	product(bool, OptimizeStringConcat, true, \
never@1515	498	"Optimize the construction of Strings by StringBuilder") \
never@1515	499	\
never@1515	500	notproduct(bool, PrintOptimizeStringConcat, false, \
never@1515	501	"Print information about transformations performed on Strings") \
never@1515	502	\
kvn@688	503	product(intx, ValueSearchLimit, 1000, \
kvn@688	504	"Recursion limit in PhaseMacroExpand::value_from_mem_phi") \
kvn@688	505	\
duke@435	506	product(intx, MaxLabelRootDepth, 1100, \
duke@435	507	"Maximum times call Label_Root to prevent stack overflow") \
kvn@590	508	\
kvn@590	509	diagnostic(intx, DominatorSearchLimit, 1000, \
kvn@590	510	"Iterations limit in Node::dominates") \
rasbold@853	511	\
rasbold@853	512	product(bool, BlockLayoutByFrequency, true, \
rasbold@853	513	"Use edge frequencies to drive block ordering") \
rasbold@853	514	\
rasbold@853	515	product(intx, BlockLayoutMinDiamondPercentage, 20, \
rasbold@853	516	"Miniumum %% of a successor (predecessor) for which block layout "\
rasbold@853	517	"a will allow a fork (join) in a single chain") \
rasbold@853	518	\
kvn@1108	519	product(bool, BlockLayoutRotateLoops, true, \
rasbold@853	520	"Allow back branches to be fall throughs in the block layour") \
twisti@4020	521	\
twisti@4020	522	develop(bool, InlineReflectionGetCallerClass, true, \
twisti@4020	523	"inline sun.reflect.Reflection.getCallerClass(), known to be part "\
twisti@4020	524	"of base library DLL") \
twisti@4020	525	\
twisti@4020	526	develop(bool, InlineObjectCopy, true, \
twisti@4020	527	"inline Object.clone and Arrays.copyOf[Range] intrinsics") \
twisti@4020	528	\
twisti@4020	529	develop(bool, SpecialStringCompareTo, true, \
twisti@4020	530	"special version of string compareTo") \
twisti@4020	531	\
twisti@4020	532	develop(bool, SpecialStringIndexOf, true, \
twisti@4020	533	"special version of string indexOf") \
twisti@4020	534	\
twisti@4020	535	develop(bool, SpecialStringEquals, true, \
twisti@4020	536	"special version of string equals") \
twisti@4020	537	\
twisti@4020	538	develop(bool, SpecialArraysEquals, true, \
twisti@4020	539	"special version of Arrays.equals(char[],char[])") \
twisti@4020	540	\
kvn@4479	541	product(bool, SpecialEncodeISOArray, true, \
kvn@4479	542	"special version of ISO_8859_1$Encoder.encodeISOArray") \
kvn@4479	543	\
twisti@4020	544	develop(bool, BailoutToInterpreterForThrows, false, \
twisti@4020	545	"Compiled methods which throws/catches exceptions will be " \
twisti@4020	546	"deopt and intp.") \
twisti@4020	547	\
twisti@4020	548	develop(bool, ConvertCmpD2CmpF, true, \
twisti@4020	549	"Convert cmpD to cmpF when one input is constant in float range") \
twisti@4020	550	\
twisti@4020	551	develop(bool, ConvertFloat2IntClipping, true, \
twisti@4020	552	"Convert float2int clipping idiom to integer clipping") \
twisti@4020	553	\
twisti@4020	554	develop(bool, Use24BitFPMode, true, \
twisti@4020	555	"Set 24-bit FPU mode on a per-compile basis ") \
twisti@4020	556	\
twisti@4020	557	develop(bool, Use24BitFP, true, \
twisti@4020	558	"use FP instructions that produce 24-bit precise results") \
twisti@4020	559	\
twisti@4020	560	develop(bool, MonomorphicArrayCheck, true, \
twisti@4020	561	"Uncommon-trap array store checks that require full type check") \
twisti@4020	562	\
twisti@4020	563	notproduct(bool, TracePhaseCCP, false, \
twisti@4020	564	"Print progress during Conditional Constant Propagation") \
twisti@4020	565	\
twisti@4020	566	develop(bool, PrintDominators, false, \
twisti@4020	567	"Print out dominator trees for GVN") \
twisti@4020	568	\
twisti@4020	569	notproduct(bool, TraceSpilling, false, \
twisti@4020	570	"Trace spilling") \
twisti@4020	571	\
twisti@4104	572	diagnostic(bool, TraceTypeProfile, false, \
twisti@4020	573	"Trace type profile") \
twisti@4020	574	\
twisti@4020	575	develop(bool, PoisonOSREntry, true, \
twisti@4020	576	"Detect abnormal calls to OSR code") \
twisti@4020	577	\
twisti@4020	578	product(bool, UseCondCardMark, false, \
twisti@4020	579	"Check for already marked card before updating card table") \
twisti@4020	580	\
twisti@4020	581	develop(bool, SoftMatchFailure, trueInProduct, \
twisti@4020	582	"If the DFA fails to match a node, print a message and bail out") \
twisti@4020	583	\
twisti@4020	584	develop(bool, InlineAccessors, true, \
twisti@4020	585	"inline accessor methods (get/set)") \
twisti@4020	586	\
twisti@4020	587	product(intx, TypeProfileMajorReceiverPercent, 90, \
twisti@4020	588	"% of major receiver type to all profiled receivers") \
twisti@4020	589	\
twisti@4020	590	notproduct(bool, TimeCompiler2, false, \
twisti@4020	591	"detailed time the compiler (requires +TimeCompiler)") \
twisti@4020	592	\
twisti@4020	593	diagnostic(bool, PrintIntrinsics, false, \
twisti@4020	594	"prints attempted and successful inlining of intrinsics") \
twisti@4020	595	\
twisti@4020	596	diagnostic(ccstrlist, DisableIntrinsic, "", \
twisti@4020	597	"do not expand intrinsics whose (internal) names appear here") \
twisti@4020	598	\
twisti@4020	599	develop(bool, StressReflectiveCode, false, \
twisti@4020	600	"Use inexact types at allocations, etc., to test reflection") \
twisti@4020	601	\
twisti@4020	602	diagnostic(bool, DebugInlinedCalls, true, \
twisti@4020	603	"If false, restricts profiled locations to the root method only") \
twisti@4020	604	\
twisti@4020	605	notproduct(bool, VerifyLoopOptimizations, false, \
twisti@4020	606	"verify major loop optimizations") \
twisti@4020	607	\
twisti@4020	608	diagnostic(bool, ProfileDynamicTypes, true, \
twisti@4020	609	"do extra type profiling and use it more aggressively") \
twisti@4020	610	\
twisti@4020	611	develop(bool, TraceIterativeGVN, false, \
twisti@4020	612	"Print progress during Iterative Global Value Numbering") \
twisti@4020	613	\
twisti@4020	614	develop(bool, VerifyIterativeGVN, false, \
twisti@4020	615	"Verify Def-Use modifications during sparse Iterative Global " \
twisti@4020	616	"Value Numbering") \
twisti@4020	617	\
twisti@4020	618	notproduct(bool, TraceCISCSpill, false, \
twisti@4020	619	"Trace allocators use of cisc spillable instructions") \
twisti@4020	620	\
twisti@4020	621	product(bool, SplitIfBlocks, true, \
twisti@4020	622	"Clone compares and control flow through merge points to fold " \
twisti@4020	623	"some branches") \
twisti@4020	624	\
twisti@4020	625	develop(intx, FreqCountInvocations, 1, \
twisti@4020	626	"Scaling factor for branch frequencies (deprecated)") \
twisti@4020	627	\
twisti@4020	628	product(intx, AliasLevel, 3, \
twisti@4020	629	"0 for no aliasing, 1 for oop/field/static/array split, " \
twisti@4020	630	"2 for class split, 3 for unique instances") \
twisti@4020	631	\
twisti@4020	632	develop(bool, VerifyAliases, false, \
twisti@4020	633	"perform extra checks on the results of alias analysis") \
roland@4409	634	\
roland@4409	635	product(bool, IncrementalInline, true, \
roland@4409	636	"do post parse inlining") \
roland@4409	637	\
roland@4409	638	develop(bool, AlwaysIncrementalInline, false, \
roland@4409	639	"do all inlining incrementally") \
roland@4409	640	\
roland@4409	641	product(intx, LiveNodeCountInliningCutoff, 20000, \
roland@4409	642	"max number of live nodes in a method") \
roland@4589	643	\
roland@4589	644	diagnostic(bool, OptimizeExpensiveOps, true, \
roland@4589	645	"Find best control for expensive operations") \
rbackman@5791	646	\
rbackman@6152	647	experimental(bool, UseMathExactIntrinsics, false, \
roland@5981	648	"Enables intrinsification of various java.lang.Math functions") \
roland@5981	649	\
roland@5981	650	experimental(bool, ReplaceInParentMaps, false, \
roland@5991	651	"Propagate type improvements in callers of inlinee if possible") \
roland@5991	652	\
roland@5991	653	experimental(bool, UseTypeSpeculation, false, \
goetz@6490	654	"Speculatively propagate types from profiles") \
goetz@6490	655	\
goetz@6490	656	product_pd(bool, TrapBasedRangeChecks, \
goetz@6490	657	"Generate code for range checks that uses a cmp and trap " \
goetz@6490	658	"instruction raising SIGTRAP. Used on PPC64.") \
duke@435	659
never@1515	660	C2_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_EXPERIMENTAL_FLAG, DECLARE_NOTPRODUCT_FLAG)
stefank@2314	661
stefank@2314	662	#endif // SHARE_VM_OPTO_C2_GLOBALS_HPP