Mercurial > hg > truffle
annotate src/share/vm/opto/c2_globals.hpp @ 1355:6ccd32c284ac
Merge
author | kamg |
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date | Wed, 07 Apr 2010 12:28:22 -0400 |
parents | b2b6a9bf6238 |
children | 6476042f815c |
rev | line source |
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0 | 1 /* |
579 | 2 * Copyright 2000-2009 Sun Microsystems, Inc. All Rights Reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 // | |
26 // Defines all globals flags used by the server compiler. | |
27 // | |
28 | |
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29 #define C2_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct) \ |
0 | 30 \ |
31 notproduct(intx, CompileZapFirst, 0, \ | |
32 "If +ZapDeadCompiledLocals, " \ | |
33 "skip this many before compiling in zap calls") \ | |
34 \ | |
35 notproduct(intx, CompileZapLast, -1, \ | |
36 "If +ZapDeadCompiledLocals, " \ | |
37 "compile this many after skipping (incl. skip count, -1 = all)") \ | |
38 \ | |
39 notproduct(intx, ZapDeadCompiledLocalsFirst, 0, \ | |
40 "If +ZapDeadCompiledLocals, " \ | |
41 "skip this many before really doing it") \ | |
42 \ | |
43 notproduct(intx, ZapDeadCompiledLocalsLast, -1, \ | |
44 "If +ZapDeadCompiledLocals, " \ | |
45 "do this many after skipping (incl. skip count, -1 = all)") \ | |
46 \ | |
47 develop(intx, OptoPrologueNops, 0, \ | |
48 "Insert this many extra nop instructions " \ | |
49 "in the prologue of every nmethod") \ | |
50 \ | |
51 product_pd(intx, InteriorEntryAlignment, \ | |
52 "Code alignment for interior entry points " \ | |
53 "in generated code (in bytes)") \ | |
54 \ | |
55 product_pd(intx, OptoLoopAlignment, \ | |
56 "Align inner loops to zero relative to this modulus") \ | |
57 \ | |
58 product(intx, MaxLoopPad, (OptoLoopAlignment-1), \ | |
59 "Align a loop if padding size in bytes is less or equal to this value") \ | |
60 \ | |
61 product(intx, NumberOfLoopInstrToAlign, 4, \ | |
62 "Number of first instructions in a loop to align") \ | |
63 \ | |
64 notproduct(intx, IndexSetWatch, 0, \ | |
65 "Trace all operations on this IndexSet (-1 means all, 0 none)") \ | |
66 \ | |
67 develop(intx, OptoNodeListSize, 4, \ | |
68 "Starting allocation size of Node_List data structures") \ | |
69 \ | |
70 develop(intx, OptoBlockListSize, 8, \ | |
71 "Starting allocation size of Block_List data structures") \ | |
72 \ | |
73 develop(intx, OptoPeepholeAt, -1, \ | |
74 "Apply peephole optimizations to this peephole rule") \ | |
75 \ | |
76 notproduct(bool, PrintIdeal, false, \ | |
77 "Print ideal graph before code generation") \ | |
78 \ | |
79 notproduct(bool, PrintOpto, false, \ | |
80 "Print compiler2 attempts") \ | |
81 \ | |
82 notproduct(bool, PrintOptoInlining, false, \ | |
83 "Print compiler2 inlining decisions") \ | |
84 \ | |
85 notproduct(bool, VerifyOpto, false, \ | |
86 "Apply more time consuming verification during compilation") \ | |
87 \ | |
88 notproduct(bool, VerifyOptoOopOffsets, false, \ | |
89 "Check types of base addresses in field references") \ | |
90 \ | |
91 develop(bool, IdealizedNumerics, false, \ | |
92 "Check performance difference allowing FP " \ | |
93 "associativity and commutativity...") \ | |
94 \ | |
95 develop(bool, OptoBreakpoint, false, \ | |
96 "insert breakpoint at method entry") \ | |
97 \ | |
98 notproduct(bool, OptoBreakpointOSR, false, \ | |
99 "insert breakpoint at osr method entry") \ | |
100 \ | |
101 notproduct(intx, BreakAtNode, 0, \ | |
102 "Break at construction of this Node (either _idx or _debug_idx)") \ | |
103 \ | |
104 notproduct(bool, OptoBreakpointC2R, false, \ | |
105 "insert breakpoint at runtime stub entry") \ | |
106 \ | |
107 notproduct(bool, OptoNoExecute, false, \ | |
108 "Attempt to parse and compile but do not execute generated code") \ | |
109 \ | |
110 notproduct(bool, PrintOptoStatistics, false, \ | |
111 "Print New compiler statistics") \ | |
112 \ | |
113 notproduct(bool, PrintOptoAssembly, false, \ | |
114 "Print New compiler assembly output") \ | |
115 \ | |
116 develop_pd(bool, OptoPeephole, \ | |
117 "Apply peephole optimizations after register allocation") \ | |
118 \ | |
119 develop(bool, OptoRemoveUseless, true, \ | |
120 "Remove useless nodes after parsing") \ | |
121 \ | |
122 notproduct(bool, PrintFrameConverterAssembly, false, \ | |
123 "Print New compiler assembly output for frame converters") \ | |
124 \ | |
125 notproduct(bool, PrintParseStatistics, false, \ | |
126 "Print nodes, transforms and new values made per bytecode parsed")\ | |
127 \ | |
128 notproduct(bool, PrintOptoPeephole, false, \ | |
129 "Print New compiler peephole replacements") \ | |
130 \ | |
131 develop(bool, PrintCFGBlockFreq, false, \ | |
132 "Print CFG block freqencies") \ | |
133 \ | |
134 develop(bool, TraceOptoParse, false, \ | |
135 "Trace bytecode parse and control-flow merge") \ | |
136 \ | |
137 product_pd(intx, LoopUnrollLimit, \ | |
138 "Unroll loop bodies with node count less than this") \ | |
139 \ | |
140 product(intx, LoopUnrollMin, 4, \ | |
141 "Minimum number of unroll loop bodies before checking progress" \ | |
142 "of rounds of unroll,optimize,..") \ | |
143 \ | |
144 develop(intx, UnrollLimitForProfileCheck, 1, \ | |
145 "Don't use profile_trip_cnt() to restrict unrolling until " \ | |
146 "unrolling would push the number of unrolled iterations above " \ | |
147 "UnrollLimitForProfileCheck. A higher value allows more " \ | |
148 "unrolling. Zero acts as a very large value." ) \ | |
149 \ | |
150 product(intx, MultiArrayExpandLimit, 6, \ | |
151 "Maximum number of individual allocations in an inline-expanded " \ | |
152 "multianewarray instruction") \ | |
153 \ | |
154 notproduct(bool, TraceProfileTripCount, false, \ | |
155 "Trace profile loop trip count information") \ | |
156 \ | |
1172 | 157 product(bool, UseLoopPredicate, true, \ |
158 "Generate a predicate to select fast/slow loop versions") \ | |
159 \ | |
160 develop(bool, TraceLoopPredicate, false, \ | |
161 "Trace generation of loop predicates") \ | |
162 \ | |
0 | 163 develop(bool, OptoCoalesce, true, \ |
164 "Use Conservative Copy Coalescing in the Register Allocator") \ | |
165 \ | |
166 develop(bool, UseUniqueSubclasses, true, \ | |
167 "Narrow an abstract reference to the unique concrete subclass") \ | |
168 \ | |
169 develop(bool, UseExactTypes, true, \ | |
170 "Use exact types to eliminate array store checks and v-calls") \ | |
171 \ | |
172 product(intx, TrackedInitializationLimit, 50, \ | |
173 "When initializing fields, track up to this many words") \ | |
174 \ | |
175 product(bool, ReduceFieldZeroing, true, \ | |
176 "When initializing fields, try to avoid needless zeroing") \ | |
177 \ | |
178 product(bool, ReduceInitialCardMarks, true, \ | |
179 "When initializing fields, try to avoid needless card marks") \ | |
180 \ | |
181 product(bool, ReduceBulkZeroing, true, \ | |
182 "When bulk-initializing, try to avoid needless zeroing") \ | |
183 \ | |
184 develop_pd(intx, RegisterCostAreaRatio, \ | |
185 "Spill selection in reg allocator: scale area by (X/64K) before " \ | |
186 "adding cost") \ | |
187 \ | |
188 develop_pd(bool, UseCISCSpill, \ | |
189 "Use ADLC supplied cisc instructions during allocation") \ | |
190 \ | |
191 notproduct(bool, VerifyGraphEdges , false, \ | |
192 "Verify Bi-directional Edges") \ | |
193 \ | |
194 notproduct(bool, VerifyDUIterators, true, \ | |
195 "Verify the safety of all iterations of Bi-directional Edges") \ | |
196 \ | |
197 notproduct(bool, VerifyHashTableKeys, true, \ | |
198 "Verify the immutability of keys in the VN hash tables") \ | |
199 \ | |
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200 notproduct(bool, VerifyRegisterAllocator , false, \ |
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201 "Verify Register Allocator") \ |
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202 \ |
0 | 203 develop_pd(intx, FLOATPRESSURE, \ |
204 "Number of float LRG's that constitute high register pressure") \ | |
205 \ | |
206 develop_pd(intx, INTPRESSURE, \ | |
207 "Number of integer LRG's that constitute high register pressure") \ | |
208 \ | |
209 notproduct(bool, TraceOptoPipelining, false, \ | |
210 "Trace pipelining information") \ | |
211 \ | |
212 notproduct(bool, TraceOptoOutput, false, \ | |
213 "Trace pipelining information") \ | |
214 \ | |
215 product_pd(bool, OptoScheduling, \ | |
216 "Instruction Scheduling after register allocation") \ | |
217 \ | |
218 product(bool, PartialPeelLoop, true, \ | |
219 "Partial peel (rotate) loops") \ | |
220 \ | |
221 product(intx, PartialPeelNewPhiDelta, 0, \ | |
222 "Additional phis that can be created by partial peeling") \ | |
223 \ | |
224 notproduct(bool, TracePartialPeeling, false, \ | |
225 "Trace partial peeling (loop rotation) information") \ | |
226 \ | |
227 product(bool, PartialPeelAtUnsignedTests, true, \ | |
228 "Partial peel at unsigned tests if no signed test exists") \ | |
229 \ | |
230 product(bool, ReassociateInvariants, true, \ | |
231 "Enable reassociation of expressions with loop invariants.") \ | |
232 \ | |
233 product(bool, LoopUnswitching, true, \ | |
234 "Enable loop unswitching (a form of invariant test hoisting)") \ | |
235 \ | |
236 notproduct(bool, TraceLoopUnswitching, false, \ | |
237 "Trace loop unswitching") \ | |
238 \ | |
239 product(bool, UseSuperWord, true, \ | |
240 "Transform scalar operations into superword operations") \ | |
241 \ | |
242 develop(bool, SuperWordRTDepCheck, false, \ | |
243 "Enable runtime dependency checks.") \ | |
244 \ | |
245 product(bool, TraceSuperWord, false, \ | |
246 "Trace superword transforms") \ | |
247 \ | |
248 product_pd(bool, OptoBundling, \ | |
249 "Generate nops to fill i-cache lines") \ | |
250 \ | |
251 product_pd(intx, ConditionalMoveLimit, \ | |
252 "Limit of ops to make speculative when using CMOVE") \ | |
253 \ | |
254 /* Set BranchOnRegister == false. See 4965987. */ \ | |
255 product(bool, BranchOnRegister, false, \ | |
256 "Use Sparc V9 branch-on-register opcodes") \ | |
257 \ | |
258 develop(bool, SparcV9RegsHiBitsZero, true, \ | |
259 "Assume Sparc V9 I&L registers on V8+ systems are zero-extended") \ | |
260 \ | |
261 develop(intx, PrintIdealGraphLevel, 0, \ | |
262 "Print ideal graph to XML file / network interface. " \ | |
263 "By default attempts to connect to the visualizer on a socket.") \ | |
264 \ | |
265 develop(intx, PrintIdealGraphPort, 4444, \ | |
266 "Ideal graph printer to network port") \ | |
267 \ | |
434 | 268 notproduct(ccstr, PrintIdealGraphAddress, "127.0.0.1", \ |
0 | 269 "IP address to connect to visualizer") \ |
270 \ | |
434 | 271 notproduct(ccstr, PrintIdealGraphFile, NULL, \ |
0 | 272 "File to dump ideal graph to. If set overrides the " \ |
273 "use of the network") \ | |
274 \ | |
275 product(bool, UseOldInlining, true, \ | |
276 "Enable the 1.3 inlining strategy") \ | |
277 \ | |
278 product(bool, UseBimorphicInlining, true, \ | |
279 "Profiling based inlining for two receivers") \ | |
280 \ | |
281 product(bool, UseOnlyInlinedBimorphic, true, \ | |
282 "Don't use BimorphicInlining if can't inline a second method") \ | |
283 \ | |
284 product(bool, InsertMemBarAfterArraycopy, true, \ | |
285 "Insert memory barrier after arraycopy call") \ | |
286 \ | |
287 /* controls for tier 1 compilations */ \ | |
288 \ | |
289 develop(bool, Tier1CountInvocations, true, \ | |
290 "Generate code, during tier 1, to update invocation counter") \ | |
291 \ | |
292 product(intx, Tier1Inline, false, \ | |
293 "enable inlining during tier 1") \ | |
294 \ | |
295 product(intx, Tier1MaxInlineSize, 8, \ | |
296 "maximum bytecode size of a method to be inlined, during tier 1") \ | |
297 \ | |
298 product(intx, Tier1FreqInlineSize, 35, \ | |
299 "max bytecode size of a frequent method to be inlined, tier 1") \ | |
300 \ | |
301 develop(intx, ImplicitNullCheckThreshold, 3, \ | |
302 "Don't do implicit null checks if NPE's in a method exceeds limit") \ | |
303 \ | |
304 /* controls for loop optimization */ \ | |
305 product(intx, Tier1LoopOptsCount, 0, \ | |
306 "Set level of loop optimization for tier 1 compiles") \ | |
307 \ | |
308 product(intx, LoopOptsCount, 43, \ | |
309 "Set level of loop optimization for tier 1 compiles") \ | |
310 \ | |
311 /* controls for heat-based inlining */ \ | |
312 \ | |
313 develop(intx, NodeCountInliningCutoff, 18000, \ | |
314 "If parser node generation exceeds limit stop inlining") \ | |
315 \ | |
316 develop(intx, NodeCountInliningStep, 1000, \ | |
317 "Target size of warm calls inlined between optimization passes") \ | |
318 \ | |
319 develop(bool, InlineWarmCalls, false, \ | |
320 "Use a heat-based priority queue to govern inlining") \ | |
321 \ | |
322 develop(intx, HotCallCountThreshold, 999999, \ | |
323 "large numbers of calls (per method invocation) force hotness") \ | |
324 \ | |
325 develop(intx, HotCallProfitThreshold, 999999, \ | |
326 "highly profitable inlining opportunities force hotness") \ | |
327 \ | |
328 develop(intx, HotCallTrivialWork, -1, \ | |
329 "trivial execution time (no larger than this) forces hotness") \ | |
330 \ | |
331 develop(intx, HotCallTrivialSize, -1, \ | |
332 "trivial methods (no larger than this) force calls to be hot") \ | |
333 \ | |
334 develop(intx, WarmCallMinCount, -1, \ | |
335 "number of calls (per method invocation) to enable inlining") \ | |
336 \ | |
337 develop(intx, WarmCallMinProfit, -1, \ | |
338 "number of calls (per method invocation) to enable inlining") \ | |
339 \ | |
340 develop(intx, WarmCallMaxWork, 999999, \ | |
341 "execution time of the largest inlinable method") \ | |
342 \ | |
343 develop(intx, WarmCallMaxSize, 999999, \ | |
344 "size of the largest inlinable method") \ | |
345 \ | |
346 product(intx, MaxNodeLimit, 65000, \ | |
347 "Maximum number of nodes") \ | |
348 \ | |
349 product(intx, NodeLimitFudgeFactor, 1000, \ | |
350 "Fudge Factor for certain optimizations") \ | |
351 \ | |
352 product(bool, UseJumpTables, true, \ | |
353 "Use JumpTables instead of a binary search tree for switches") \ | |
354 \ | |
355 product(bool, UseDivMod, true, \ | |
356 "Use combined DivMod instruction if available") \ | |
357 \ | |
358 product(intx, MinJumpTableSize, 18, \ | |
359 "Minimum number of targets in a generated jump table") \ | |
360 \ | |
361 product(intx, MaxJumpTableSize, 65000, \ | |
362 "Maximum number of targets in a generated jump table") \ | |
363 \ | |
364 product(intx, MaxJumpTableSparseness, 5, \ | |
365 "Maximum sparseness for jumptables") \ | |
366 \ | |
367 product(bool, EliminateLocks, true, \ | |
368 "Coarsen locks when possible") \ | |
369 \ | |
370 notproduct(bool, PrintLockStatistics, false, \ | |
371 "Print precise statistics on the dynamic lock usage") \ | |
372 \ | |
373 diagnostic(bool, PrintPreciseBiasedLockingStatistics, false, \ | |
374 "Print per-lock-site statistics of biased locking in JVM") \ | |
375 \ | |
376 notproduct(bool, PrintEliminateLocks, false, \ | |
377 "Print out when locks are eliminated") \ | |
378 \ | |
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379 diagnostic(bool, EliminateAutoBox, false, \ |
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380 "Private flag to control optimizations for autobox elimination") \ |
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381 \ |
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382 product(intx, AutoBoxCacheMax, 128, \ |
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383 "Sets max value cached by the java.lang.Integer autobox cache") \ |
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384 \ |
930 | 385 product(bool, DoEscapeAnalysis, true, \ |
0 | 386 "Perform escape analysis") \ |
387 \ | |
388 notproduct(bool, PrintEscapeAnalysis, false, \ | |
389 "Print the results of escape analysis") \ | |
390 \ | |
391 product(bool, EliminateAllocations, true, \ | |
392 "Use escape analysis to eliminate allocations") \ | |
393 \ | |
65 | 394 notproduct(bool, PrintEliminateAllocations, false, \ |
395 "Print out when allocations are eliminated") \ | |
396 \ | |
397 product(intx, EliminateAllocationArraySizeLimit, 64, \ | |
398 "Array size (number of elements) limit for scalar replacement") \ | |
399 \ | |
673 | 400 product(bool, UseOptoBiasInlining, true, \ |
420
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401 "Generate biased locking code in C2 ideal graph") \ |
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402 \ |
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403 product(bool, OptimizeStringConcat, false, \ |
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404 "Optimize the construction of Strings by StringBuilder") \ |
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405 \ |
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406 notproduct(bool, PrintOptimizeStringConcat, false, \ |
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407 "Print information about transformations performed on Strings") \ |
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408 \ |
253
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409 product(intx, ValueSearchLimit, 1000, \ |
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410 "Recursion limit in PhaseMacroExpand::value_from_mem_phi") \ |
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411 \ |
0 | 412 product(intx, MaxLabelRootDepth, 1100, \ |
413 "Maximum times call Label_Root to prevent stack overflow") \ | |
155
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414 \ |
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415 diagnostic(intx, DominatorSearchLimit, 1000, \ |
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416 "Iterations limit in Node::dominates") \ |
418 | 417 \ |
418 product(bool, BlockLayoutByFrequency, true, \ | |
419 "Use edge frequencies to drive block ordering") \ | |
420 \ | |
421 product(intx, BlockLayoutMinDiamondPercentage, 20, \ | |
422 "Miniumum %% of a successor (predecessor) for which block layout "\ | |
423 "a will allow a fork (join) in a single chain") \ | |
424 \ | |
673 | 425 product(bool, BlockLayoutRotateLoops, true, \ |
418 | 426 "Allow back branches to be fall throughs in the block layour") \ |
0 | 427 |
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428 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) |