c2_globals.hpp 33.6 KB
Newer Older
D
duke 已提交
1
/*
2
 * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
D
duke 已提交
3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
19 20 21
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
D
duke 已提交
22 23 24
 *
 */

25 26 27 28 29 30 31 32 33 34
#ifndef SHARE_VM_OPTO_C2_GLOBALS_HPP
#define SHARE_VM_OPTO_C2_GLOBALS_HPP

#include "runtime/globals.hpp"
#ifdef TARGET_ARCH_x86
# include "c2_globals_x86.hpp"
#endif
#ifdef TARGET_ARCH_sparc
# include "c2_globals_sparc.hpp"
#endif
35 36 37
#ifdef TARGET_ARCH_arm
# include "c2_globals_arm.hpp"
#endif
38 39 40 41 42 43 44 45 46 47
#ifdef TARGET_OS_FAMILY_linux
# include "c2_globals_linux.hpp"
#endif
#ifdef TARGET_OS_FAMILY_solaris
# include "c2_globals_solaris.hpp"
#endif
#ifdef TARGET_OS_FAMILY_windows
# include "c2_globals_windows.hpp"
#endif

D
duke 已提交
48 49 50 51
//
// Defines all globals flags used by the server compiler.
//

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

469
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)
470 471

#endif // SHARE_VM_OPTO_C2_GLOBALS_HPP