Mercurial > hg > truffle
annotate src/share/vm/opto/c2_globals.hpp @ 5948:ee138854b3a6
7147744: CTW: assert(false) failed: infinite EA connection graph build
Summary: rewrote Connection graph construction code in EA to reduce time spent there.
Reviewed-by: never
| author | kvn |
|---|---|
| date | Mon, 12 Mar 2012 10:46:47 -0700 |
| parents | e9a5e0a812c8 |
| children | 8c92982cbbc4 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2000, 2012, Oracle and/or its affiliates. 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 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_OPTO_C2_GLOBALS_HPP |
| 26 #define SHARE_VM_OPTO_C2_GLOBALS_HPP | |
| 27 | |
| 28 #include "runtime/globals.hpp" | |
| 29 #ifdef TARGET_ARCH_x86 | |
| 30 # include "c2_globals_x86.hpp" | |
| 31 #endif | |
| 32 #ifdef TARGET_ARCH_sparc | |
| 33 # include "c2_globals_sparc.hpp" | |
| 34 #endif | |
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35 #ifdef TARGET_ARCH_arm |
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36 # include "c2_globals_arm.hpp" |
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37 #endif |
| 1972 | 38 #ifdef TARGET_OS_FAMILY_linux |
| 39 # include "c2_globals_linux.hpp" | |
| 40 #endif | |
| 41 #ifdef TARGET_OS_FAMILY_solaris | |
| 42 # include "c2_globals_solaris.hpp" | |
| 43 #endif | |
| 44 #ifdef TARGET_OS_FAMILY_windows | |
| 45 # include "c2_globals_windows.hpp" | |
| 46 #endif | |
| 3960 | 47 #ifdef TARGET_OS_FAMILY_bsd |
| 48 # include "c2_globals_bsd.hpp" | |
| 49 #endif | |
| 1972 | 50 |
| 0 | 51 // |
| 52 // Defines all globals flags used by the server compiler. | |
| 53 // | |
| 54 | |
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55 #define C2_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct) \ |
| 0 | 56 \ |
| 57 notproduct(intx, CompileZapFirst, 0, \ | |
| 58 "If +ZapDeadCompiledLocals, " \ | |
| 59 "skip this many before compiling in zap calls") \ | |
| 60 \ | |
| 61 notproduct(intx, CompileZapLast, -1, \ | |
| 62 "If +ZapDeadCompiledLocals, " \ | |
| 63 "compile this many after skipping (incl. skip count, -1 = all)") \ | |
| 64 \ | |
| 65 notproduct(intx, ZapDeadCompiledLocalsFirst, 0, \ | |
| 66 "If +ZapDeadCompiledLocals, " \ | |
| 67 "skip this many before really doing it") \ | |
| 68 \ | |
| 69 notproduct(intx, ZapDeadCompiledLocalsLast, -1, \ | |
| 70 "If +ZapDeadCompiledLocals, " \ | |
| 71 "do this many after skipping (incl. skip count, -1 = all)") \ | |
| 72 \ | |
| 73 develop(intx, OptoPrologueNops, 0, \ | |
| 74 "Insert this many extra nop instructions " \ | |
| 75 "in the prologue of every nmethod") \ | |
| 76 \ | |
| 77 product_pd(intx, InteriorEntryAlignment, \ | |
| 78 "Code alignment for interior entry points " \ | |
| 79 "in generated code (in bytes)") \ | |
| 80 \ | |
| 81 product(intx, MaxLoopPad, (OptoLoopAlignment-1), \ | |
| 82 "Align a loop if padding size in bytes is less or equal to this value") \ | |
| 83 \ | |
| 84 product(intx, NumberOfLoopInstrToAlign, 4, \ | |
| 85 "Number of first instructions in a loop to align") \ | |
| 86 \ | |
| 87 notproduct(intx, IndexSetWatch, 0, \ | |
| 88 "Trace all operations on this IndexSet (-1 means all, 0 none)") \ | |
| 89 \ | |
| 90 develop(intx, OptoNodeListSize, 4, \ | |
| 91 "Starting allocation size of Node_List data structures") \ | |
| 92 \ | |
| 93 develop(intx, OptoBlockListSize, 8, \ | |
| 94 "Starting allocation size of Block_List data structures") \ | |
| 95 \ | |
| 96 develop(intx, OptoPeepholeAt, -1, \ | |
| 97 "Apply peephole optimizations to this peephole rule") \ | |
| 98 \ | |
| 99 notproduct(bool, PrintIdeal, false, \ | |
| 100 "Print ideal graph before code generation") \ | |
| 101 \ | |
| 102 notproduct(bool, PrintOpto, false, \ | |
| 103 "Print compiler2 attempts") \ | |
| 104 \ | |
| 105 notproduct(bool, PrintOptoInlining, false, \ | |
| 106 "Print compiler2 inlining decisions") \ | |
| 107 \ | |
| 108 notproduct(bool, VerifyOpto, false, \ | |
| 109 "Apply more time consuming verification during compilation") \ | |
| 110 \ | |
| 111 notproduct(bool, VerifyOptoOopOffsets, false, \ | |
| 112 "Check types of base addresses in field references") \ | |
| 113 \ | |
| 114 develop(bool, IdealizedNumerics, false, \ | |
| 115 "Check performance difference allowing FP " \ | |
| 116 "associativity and commutativity...") \ | |
| 117 \ | |
| 118 develop(bool, OptoBreakpoint, false, \ | |
| 119 "insert breakpoint at method entry") \ | |
| 120 \ | |
| 121 notproduct(bool, OptoBreakpointOSR, false, \ | |
| 122 "insert breakpoint at osr method entry") \ | |
| 123 \ | |
| 124 notproduct(intx, BreakAtNode, 0, \ | |
| 125 "Break at construction of this Node (either _idx or _debug_idx)") \ | |
| 126 \ | |
| 127 notproduct(bool, OptoBreakpointC2R, false, \ | |
| 128 "insert breakpoint at runtime stub entry") \ | |
| 129 \ | |
| 130 notproduct(bool, OptoNoExecute, false, \ | |
| 131 "Attempt to parse and compile but do not execute generated code") \ | |
| 132 \ | |
| 133 notproduct(bool, PrintOptoStatistics, false, \ | |
| 134 "Print New compiler statistics") \ | |
| 135 \ | |
| 136 notproduct(bool, PrintOptoAssembly, false, \ | |
| 137 "Print New compiler assembly output") \ | |
| 138 \ | |
| 139 develop_pd(bool, OptoPeephole, \ | |
| 140 "Apply peephole optimizations after register allocation") \ | |
| 141 \ | |
| 142 develop(bool, OptoRemoveUseless, true, \ | |
| 143 "Remove useless nodes after parsing") \ | |
| 144 \ | |
| 145 notproduct(bool, PrintFrameConverterAssembly, false, \ | |
| 146 "Print New compiler assembly output for frame converters") \ | |
| 147 \ | |
| 148 notproduct(bool, PrintParseStatistics, false, \ | |
| 149 "Print nodes, transforms and new values made per bytecode parsed")\ | |
| 150 \ | |
| 151 notproduct(bool, PrintOptoPeephole, false, \ | |
| 152 "Print New compiler peephole replacements") \ | |
| 153 \ | |
| 154 develop(bool, PrintCFGBlockFreq, false, \ | |
| 155 "Print CFG block freqencies") \ | |
| 156 \ | |
| 157 develop(bool, TraceOptoParse, false, \ | |
| 158 "Trace bytecode parse and control-flow merge") \ | |
| 159 \ | |
| 160 product_pd(intx, LoopUnrollLimit, \ | |
| 161 "Unroll loop bodies with node count less than this") \ | |
| 162 \ | |
| 163 product(intx, LoopUnrollMin, 4, \ | |
| 164 "Minimum number of unroll loop bodies before checking progress" \ | |
| 165 "of rounds of unroll,optimize,..") \ | |
| 166 \ | |
| 167 develop(intx, UnrollLimitForProfileCheck, 1, \ | |
| 168 "Don't use profile_trip_cnt() to restrict unrolling until " \ | |
| 169 "unrolling would push the number of unrolled iterations above " \ | |
| 170 "UnrollLimitForProfileCheck. A higher value allows more " \ | |
| 171 "unrolling. Zero acts as a very large value." ) \ | |
| 172 \ | |
| 173 product(intx, MultiArrayExpandLimit, 6, \ | |
| 174 "Maximum number of individual allocations in an inline-expanded " \ | |
| 175 "multianewarray instruction") \ | |
| 176 \ | |
| 177 notproduct(bool, TraceProfileTripCount, false, \ | |
| 178 "Trace profile loop trip count information") \ | |
| 179 \ | |
| 1172 | 180 product(bool, UseLoopPredicate, true, \ |
| 181 "Generate a predicate to select fast/slow loop versions") \ | |
| 182 \ | |
| 183 develop(bool, TraceLoopPredicate, false, \ | |
| 184 "Trace generation of loop predicates") \ | |
| 185 \ | |
|
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186 develop(bool, TraceLoopOpts, false, \ |
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187 "Trace executed loop optimizations") \ |
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188 \ |
| 3345 | 189 diagnostic(bool, LoopLimitCheck, true, \ |
| 190 "Generate a loop limits check for overflow") \ | |
| 191 \ | |
| 192 develop(bool, TraceLoopLimitCheck, false, \ | |
| 193 "Trace generation of loop limits checks") \ | |
| 194 \ | |
| 195 diagnostic(bool, RangeLimitCheck, true, \ | |
| 196 "Additional overflow checks during range check elimination") \ | |
| 197 \ | |
| 198 develop(bool, TraceRangeLimitCheck, false, \ | |
| 199 "Trace additional overflow checks in RCE") \ | |
| 200 \ | |
| 201 diagnostic(bool, UnrollLimitCheck, true, \ | |
| 202 "Additional overflow checks during loop unroll") \ | |
| 203 \ | |
| 4039 | 204 product(bool, OptimizeFill, true, \ |
| 1763 | 205 "convert fill/copy loops into intrinsic") \ |
| 206 \ | |
| 207 develop(bool, TraceOptimizeFill, false, \ | |
| 208 "print detailed information about fill conversion") \ | |
| 209 \ | |
| 0 | 210 develop(bool, OptoCoalesce, true, \ |
| 211 "Use Conservative Copy Coalescing in the Register Allocator") \ | |
| 212 \ | |
| 213 develop(bool, UseUniqueSubclasses, true, \ | |
| 214 "Narrow an abstract reference to the unique concrete subclass") \ | |
| 215 \ | |
| 216 develop(bool, UseExactTypes, true, \ | |
| 217 "Use exact types to eliminate array store checks and v-calls") \ | |
| 218 \ | |
| 219 product(intx, TrackedInitializationLimit, 50, \ | |
| 220 "When initializing fields, track up to this many words") \ | |
| 221 \ | |
| 222 product(bool, ReduceFieldZeroing, true, \ | |
| 223 "When initializing fields, try to avoid needless zeroing") \ | |
| 224 \ | |
| 225 product(bool, ReduceInitialCardMarks, true, \ | |
| 226 "When initializing fields, try to avoid needless card marks") \ | |
| 227 \ | |
| 228 product(bool, ReduceBulkZeroing, true, \ | |
| 229 "When bulk-initializing, try to avoid needless zeroing") \ | |
| 230 \ | |
|
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231 product(bool, UseFPUForSpilling, false, \ |
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232 "Spill integer registers to FPU instead of stack when possible") \ |
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233 \ |
| 0 | 234 develop_pd(intx, RegisterCostAreaRatio, \ |
| 235 "Spill selection in reg allocator: scale area by (X/64K) before " \ | |
| 236 "adding cost") \ | |
| 237 \ | |
| 238 develop_pd(bool, UseCISCSpill, \ | |
| 239 "Use ADLC supplied cisc instructions during allocation") \ | |
| 240 \ | |
| 241 notproduct(bool, VerifyGraphEdges , false, \ | |
| 242 "Verify Bi-directional Edges") \ | |
| 243 \ | |
| 244 notproduct(bool, VerifyDUIterators, true, \ | |
| 245 "Verify the safety of all iterations of Bi-directional Edges") \ | |
| 246 \ | |
| 247 notproduct(bool, VerifyHashTableKeys, true, \ | |
| 248 "Verify the immutability of keys in the VN hash tables") \ | |
| 249 \ | |
|
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250 notproduct(bool, VerifyRegisterAllocator , false, \ |
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251 "Verify Register Allocator") \ |
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252 \ |
| 0 | 253 develop_pd(intx, FLOATPRESSURE, \ |
| 254 "Number of float LRG's that constitute high register pressure") \ | |
| 255 \ | |
| 256 develop_pd(intx, INTPRESSURE, \ | |
| 257 "Number of integer LRG's that constitute high register pressure") \ | |
| 258 \ | |
| 259 notproduct(bool, TraceOptoPipelining, false, \ | |
| 260 "Trace pipelining information") \ | |
| 261 \ | |
| 262 notproduct(bool, TraceOptoOutput, false, \ | |
| 263 "Trace pipelining information") \ | |
| 264 \ | |
| 265 product_pd(bool, OptoScheduling, \ | |
| 266 "Instruction Scheduling after register allocation") \ | |
| 267 \ | |
| 268 product(bool, PartialPeelLoop, true, \ | |
| 269 "Partial peel (rotate) loops") \ | |
| 270 \ | |
| 271 product(intx, PartialPeelNewPhiDelta, 0, \ | |
| 272 "Additional phis that can be created by partial peeling") \ | |
| 273 \ | |
| 274 notproduct(bool, TracePartialPeeling, false, \ | |
| 275 "Trace partial peeling (loop rotation) information") \ | |
| 276 \ | |
| 277 product(bool, PartialPeelAtUnsignedTests, true, \ | |
| 278 "Partial peel at unsigned tests if no signed test exists") \ | |
| 279 \ | |
| 280 product(bool, ReassociateInvariants, true, \ | |
| 281 "Enable reassociation of expressions with loop invariants.") \ | |
| 282 \ | |
| 283 product(bool, LoopUnswitching, true, \ | |
| 284 "Enable loop unswitching (a form of invariant test hoisting)") \ | |
| 285 \ | |
| 286 notproduct(bool, TraceLoopUnswitching, false, \ | |
| 287 "Trace loop unswitching") \ | |
| 288 \ | |
| 289 product(bool, UseSuperWord, true, \ | |
| 290 "Transform scalar operations into superword operations") \ | |
| 291 \ | |
| 292 develop(bool, SuperWordRTDepCheck, false, \ | |
| 293 "Enable runtime dependency checks.") \ | |
| 294 \ | |
| 295 product(bool, TraceSuperWord, false, \ | |
| 296 "Trace superword transforms") \ | |
| 297 \ | |
| 298 product_pd(bool, OptoBundling, \ | |
| 299 "Generate nops to fill i-cache lines") \ | |
| 300 \ | |
| 301 product_pd(intx, ConditionalMoveLimit, \ | |
| 302 "Limit of ops to make speculative when using CMOVE") \ | |
| 303 \ | |
| 304 /* Set BranchOnRegister == false. See 4965987. */ \ | |
| 305 product(bool, BranchOnRegister, false, \ | |
| 306 "Use Sparc V9 branch-on-register opcodes") \ | |
| 307 \ | |
| 308 develop(bool, SparcV9RegsHiBitsZero, true, \ | |
| 309 "Assume Sparc V9 I&L registers on V8+ systems are zero-extended") \ | |
| 310 \ | |
| 2008 | 311 product(bool, UseRDPCForConstantTableBase, false, \ |
| 312 "Use Sparc RDPC instruction for the constant table base.") \ | |
| 313 \ | |
| 0 | 314 develop(intx, PrintIdealGraphLevel, 0, \ |
| 315 "Print ideal graph to XML file / network interface. " \ | |
| 316 "By default attempts to connect to the visualizer on a socket.") \ | |
| 317 \ | |
| 318 develop(intx, PrintIdealGraphPort, 4444, \ | |
| 319 "Ideal graph printer to network port") \ | |
| 320 \ | |
| 434 | 321 notproduct(ccstr, PrintIdealGraphAddress, "127.0.0.1", \ |
| 0 | 322 "IP address to connect to visualizer") \ |
| 323 \ | |
| 434 | 324 notproduct(ccstr, PrintIdealGraphFile, NULL, \ |
| 0 | 325 "File to dump ideal graph to. If set overrides the " \ |
| 326 "use of the network") \ | |
| 327 \ | |
| 328 product(bool, UseOldInlining, true, \ | |
| 329 "Enable the 1.3 inlining strategy") \ | |
| 330 \ | |
| 331 product(bool, UseBimorphicInlining, true, \ | |
| 332 "Profiling based inlining for two receivers") \ | |
| 333 \ | |
| 334 product(bool, UseOnlyInlinedBimorphic, true, \ | |
| 335 "Don't use BimorphicInlining if can't inline a second method") \ | |
| 336 \ | |
| 337 product(bool, InsertMemBarAfterArraycopy, true, \ | |
| 338 "Insert memory barrier after arraycopy call") \ | |
| 339 \ | |
| 1685 | 340 develop(bool, SubsumeLoads, true, \ |
| 341 "Attempt to compile while subsuming loads into machine instructions.") \ | |
| 342 \ | |
| 343 develop(bool, StressRecompilation, false, \ | |
| 344 "Recompile each compiled method without subsuming loads or escape analysis.") \ | |
| 345 \ | |
| 0 | 346 /* controls for tier 1 compilations */ \ |
| 347 \ | |
| 348 develop(bool, Tier1CountInvocations, true, \ | |
| 349 "Generate code, during tier 1, to update invocation counter") \ | |
| 350 \ | |
| 351 product(intx, Tier1Inline, false, \ | |
| 352 "enable inlining during tier 1") \ | |
| 353 \ | |
| 354 product(intx, Tier1MaxInlineSize, 8, \ | |
| 355 "maximum bytecode size of a method to be inlined, during tier 1") \ | |
| 356 \ | |
| 357 product(intx, Tier1FreqInlineSize, 35, \ | |
| 358 "max bytecode size of a frequent method to be inlined, tier 1") \ | |
| 359 \ | |
| 360 develop(intx, ImplicitNullCheckThreshold, 3, \ | |
| 361 "Don't do implicit null checks if NPE's in a method exceeds limit") \ | |
| 362 \ | |
| 363 /* controls for loop optimization */ \ | |
| 364 product(intx, Tier1LoopOptsCount, 0, \ | |
| 365 "Set level of loop optimization for tier 1 compiles") \ | |
| 366 \ | |
| 367 product(intx, LoopOptsCount, 43, \ | |
| 368 "Set level of loop optimization for tier 1 compiles") \ | |
| 369 \ | |
| 370 /* controls for heat-based inlining */ \ | |
| 371 \ | |
| 372 develop(intx, NodeCountInliningCutoff, 18000, \ | |
| 373 "If parser node generation exceeds limit stop inlining") \ | |
| 374 \ | |
| 375 develop(intx, NodeCountInliningStep, 1000, \ | |
| 376 "Target size of warm calls inlined between optimization passes") \ | |
| 377 \ | |
| 378 develop(bool, InlineWarmCalls, false, \ | |
| 379 "Use a heat-based priority queue to govern inlining") \ | |
| 380 \ | |
| 381 develop(intx, HotCallCountThreshold, 999999, \ | |
| 382 "large numbers of calls (per method invocation) force hotness") \ | |
| 383 \ | |
| 384 develop(intx, HotCallProfitThreshold, 999999, \ | |
| 385 "highly profitable inlining opportunities force hotness") \ | |
| 386 \ | |
| 387 develop(intx, HotCallTrivialWork, -1, \ | |
| 388 "trivial execution time (no larger than this) forces hotness") \ | |
| 389 \ | |
| 390 develop(intx, HotCallTrivialSize, -1, \ | |
| 391 "trivial methods (no larger than this) force calls to be hot") \ | |
| 392 \ | |
| 393 develop(intx, WarmCallMinCount, -1, \ | |
| 394 "number of calls (per method invocation) to enable inlining") \ | |
| 395 \ | |
| 396 develop(intx, WarmCallMinProfit, -1, \ | |
| 397 "number of calls (per method invocation) to enable inlining") \ | |
| 398 \ | |
| 399 develop(intx, WarmCallMaxWork, 999999, \ | |
| 400 "execution time of the largest inlinable method") \ | |
| 401 \ | |
| 402 develop(intx, WarmCallMaxSize, 999999, \ | |
| 403 "size of the largest inlinable method") \ | |
| 404 \ | |
| 405 product(intx, MaxNodeLimit, 65000, \ | |
| 406 "Maximum number of nodes") \ | |
| 407 \ | |
| 408 product(intx, NodeLimitFudgeFactor, 1000, \ | |
| 409 "Fudge Factor for certain optimizations") \ | |
| 410 \ | |
| 411 product(bool, UseJumpTables, true, \ | |
| 412 "Use JumpTables instead of a binary search tree for switches") \ | |
| 413 \ | |
| 414 product(bool, UseDivMod, true, \ | |
| 415 "Use combined DivMod instruction if available") \ | |
| 416 \ | |
| 417 product(intx, MinJumpTableSize, 18, \ | |
| 418 "Minimum number of targets in a generated jump table") \ | |
| 419 \ | |
| 420 product(intx, MaxJumpTableSize, 65000, \ | |
| 421 "Maximum number of targets in a generated jump table") \ | |
| 422 \ | |
| 423 product(intx, MaxJumpTableSparseness, 5, \ | |
| 424 "Maximum sparseness for jumptables") \ | |
| 425 \ | |
| 426 product(bool, EliminateLocks, true, \ | |
| 427 "Coarsen locks when possible") \ | |
| 428 \ | |
| 4777 | 429 product(bool, EliminateNestedLocks, true, \ |
| 430 "Eliminate nested locks of the same object when possible") \ | |
| 431 \ | |
| 0 | 432 notproduct(bool, PrintLockStatistics, false, \ |
| 433 "Print precise statistics on the dynamic lock usage") \ | |
| 434 \ | |
| 435 diagnostic(bool, PrintPreciseBiasedLockingStatistics, false, \ | |
| 436 "Print per-lock-site statistics of biased locking in JVM") \ | |
| 437 \ | |
| 438 notproduct(bool, PrintEliminateLocks, false, \ | |
| 439 "Print out when locks are eliminated") \ | |
| 440 \ | |
|
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441 diagnostic(bool, EliminateAutoBox, false, \ |
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442 "Private flag to control optimizations for autobox elimination") \ |
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443 \ |
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444 product(intx, AutoBoxCacheMax, 128, \ |
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445 "Sets max value cached by the java.lang.Integer autobox cache") \ |
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446 \ |
| 930 | 447 product(bool, DoEscapeAnalysis, true, \ |
| 0 | 448 "Perform escape analysis") \ |
| 449 \ | |
| 450 notproduct(bool, PrintEscapeAnalysis, false, \ | |
| 451 "Print the results of escape analysis") \ | |
| 452 \ | |
| 453 product(bool, EliminateAllocations, true, \ | |
| 454 "Use escape analysis to eliminate allocations") \ | |
| 455 \ | |
| 65 | 456 notproduct(bool, PrintEliminateAllocations, false, \ |
| 457 "Print out when allocations are eliminated") \ | |
| 458 \ | |
| 459 product(intx, EliminateAllocationArraySizeLimit, 64, \ | |
| 460 "Array size (number of elements) limit for scalar replacement") \ | |
| 461 \ | |
| 4113 | 462 product(bool, OptimizePtrCompare, true, \ |
| 463 "Use escape analysis to optimize pointers compare") \ | |
| 464 \ | |
| 465 notproduct(bool, PrintOptimizePtrCompare, false, \ | |
| 466 "Print information about optimized pointers compare") \ | |
| 467 \ | |
|
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468 notproduct(bool, VerifyConnectionGraph , true, \ |
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469 "Verify Connection Graph construction in Escape Analysis") \ |
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470 \ |
| 673 | 471 product(bool, UseOptoBiasInlining, true, \ |
|
420
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472 "Generate biased locking code in C2 ideal graph") \ |
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473 \ |
| 4039 | 474 product(bool, OptimizeStringConcat, true, \ |
|
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475 "Optimize the construction of Strings by StringBuilder") \ |
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476 \ |
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477 notproduct(bool, PrintOptimizeStringConcat, false, \ |
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478 "Print information about transformations performed on Strings") \ |
|
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479 \ |
|
253
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480 product(intx, ValueSearchLimit, 1000, \ |
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481 "Recursion limit in PhaseMacroExpand::value_from_mem_phi") \ |
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482 \ |
| 0 | 483 product(intx, MaxLabelRootDepth, 1100, \ |
| 484 "Maximum times call Label_Root to prevent stack overflow") \ | |
|
155
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485 \ |
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486 diagnostic(intx, DominatorSearchLimit, 1000, \ |
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487 "Iterations limit in Node::dominates") \ |
| 418 | 488 \ |
| 489 product(bool, BlockLayoutByFrequency, true, \ | |
| 490 "Use edge frequencies to drive block ordering") \ | |
| 491 \ | |
| 492 product(intx, BlockLayoutMinDiamondPercentage, 20, \ | |
| 493 "Miniumum %% of a successor (predecessor) for which block layout "\ | |
| 494 "a will allow a fork (join) in a single chain") \ | |
| 495 \ | |
| 673 | 496 product(bool, BlockLayoutRotateLoops, true, \ |
| 418 | 497 "Allow back branches to be fall throughs in the block layour") \ |
| 0 | 498 |
|
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499 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) |
| 1972 | 500 |
| 501 #endif // SHARE_VM_OPTO_C2_GLOBALS_HPP |