1 /*
   2  * Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.
   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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef SHARE_VM_C1_C1_GLOBALS_HPP
  26 #define SHARE_VM_C1_C1_GLOBALS_HPP
  27 
  28 #include "runtime/globals.hpp"
  29 #include "utilities/macros.hpp"
  30 
  31 #include CPU_HEADER(c1_globals)
  32 #include OS_HEADER(c1_globals)
  33 
  34 //
  35 // Defines all global flags used by the client compiler.
  36 //
  37 #define C1_FLAGS(develop, \
  38                  develop_pd, \
  39                  product, \
  40                  product_pd, \
  41                  diagnostic, \
  42                  diagnostic_pd, \
  43                  notproduct, \
  44                  range, \
  45                  constraint, \
  46                  writeable) \
  47                                                                             \
  48   /* Printing */                                                            \
  49   notproduct(bool, PrintC1Statistics, false,                                \
  50           "Print Compiler1 statistics" )                                    \
  51                                                                             \
  52   notproduct(bool, PrintInitialBlockList, false,                            \
  53           "Print block list of BlockListBuilder")                           \
  54                                                                             \
  55   notproduct(bool, PrintCFG, false,                                         \
  56           "Print control flow graph after each change")                     \
  57                                                                             \
  58   notproduct(bool, PrintCFG0, false,                                        \
  59           "Print control flow graph after construction")                    \
  60                                                                             \
  61   notproduct(bool, PrintCFG1, false,                                        \
  62           "Print control flow graph after optimizations")                   \
  63                                                                             \
  64   notproduct(bool, PrintCFG2, false,                                        \
  65           "Print control flow graph before code generation")                \
  66                                                                             \
  67   notproduct(bool, PrintIRDuringConstruction, false,                        \
  68           "Print IR as it's being constructed (helpful for debugging frontend)")\
  69                                                                             \
  70   notproduct(bool, PrintPhiFunctions, false,                                \
  71           "Print phi functions when they are created and simplified")       \
  72                                                                             \
  73   notproduct(bool, PrintIR, false,                                          \
  74           "Print full intermediate representation after each change")       \
  75                                                                             \
  76   notproduct(bool, PrintIR0, false,                                         \
  77           "Print full intermediate representation after construction")      \
  78                                                                             \
  79   notproduct(bool, PrintIR1, false,                                         \
  80           "Print full intermediate representation after optimizations")     \
  81                                                                             \
  82   notproduct(bool, PrintIR2, false,                                         \
  83           "Print full intermediate representation before code generation")  \
  84                                                                             \
  85   notproduct(bool, PrintSimpleStubs, false,                                 \
  86           "Print SimpleStubs")                                              \
  87                                                                             \
  88   /* C1 optimizations */                                                    \
  89                                                                             \
  90   develop(bool, UseC1Optimizations, true,                                   \
  91           "Turn on C1 optimizations")                                       \
  92                                                                             \
  93   develop(bool, SelectivePhiFunctions, true,                                \
  94           "create phi functions at loop headers only when necessary")       \
  95                                                                             \
  96   develop(bool, OptimizeIfOps, true,                                        \
  97           "Optimize multiple IfOps")                                        \
  98                                                                             \
  99   develop(bool, DoCEE, true,                                                \
 100           "Do Conditional Expression Elimination to simplify CFG")          \
 101                                                                             \
 102   develop(bool, PrintCEE, false,                                            \
 103           "Print Conditional Expression Elimination")                       \
 104                                                                             \
 105   develop(bool, UseLocalValueNumbering, true,                               \
 106           "Use Local Value Numbering (embedded in GraphBuilder)")           \
 107                                                                             \
 108   develop(bool, UseGlobalValueNumbering, true,                              \
 109           "Use Global Value Numbering (separate phase)")                    \
 110                                                                             \
 111   product(bool, UseLoopInvariantCodeMotion, true,                           \
 112           "Simple loop invariant code motion for short loops during GVN")   \
 113                                                                             \
 114   develop(bool, TracePredicateFailedTraps, false,                           \
 115           "trace runtime traps caused by predicate failure")                \
 116                                                                             \
 117   develop(bool, StressLoopInvariantCodeMotion, false,                       \
 118           "stress loop invariant code motion")                              \
 119                                                                             \
 120   develop(bool, TraceRangeCheckElimination, false,                          \
 121           "Trace Range Check Elimination")                                  \
 122                                                                             \
 123   develop(bool, AssertRangeCheckElimination, false,                         \
 124           "Assert Range Check Elimination")                                 \
 125                                                                             \
 126   develop(bool, StressRangeCheckElimination, false,                         \
 127           "stress Range Check Elimination")                                 \
 128                                                                             \
 129   develop(bool, PrintValueNumbering, false,                                 \
 130           "Print Value Numbering")                                          \
 131                                                                             \
 132   product(intx, ValueMapInitialSize, 11,                                    \
 133           "Initial size of a value map")                                    \
 134           range(1, NOT_LP64(1*K) LP64_ONLY(32*K))                           \
 135                                                                             \
 136   product(intx, ValueMapMaxLoopSize, 8,                                     \
 137           "maximum size of a loop optimized by global value numbering")     \
 138           range(0, 128)                                                     \
 139                                                                             \
 140   develop(bool, EliminateBlocks, true,                                      \
 141           "Eliminate unneccessary basic blocks")                            \
 142                                                                             \
 143   develop(bool, PrintBlockElimination, false,                               \
 144           "Print basic block elimination")                                  \
 145                                                                             \
 146   develop(bool, EliminateNullChecks, true,                                  \
 147           "Eliminate unneccessary null checks")                             \
 148                                                                             \
 149   develop(bool, PrintNullCheckElimination, false,                           \
 150           "Print null check elimination")                                   \
 151                                                                             \
 152   develop(bool, EliminateFieldAccess, true,                                 \
 153           "Optimize field loads and stores")                                \
 154                                                                             \
 155   develop(bool, InlineMethodsWithExceptionHandlers, true,                   \
 156           "Inline methods containing exception handlers "                   \
 157           "(NOTE: does not work with current backend)")                     \
 158                                                                             \
 159   product(bool, InlineSynchronizedMethods, true,                            \
 160           "Inline synchronized methods")                                    \
 161                                                                             \
 162   diagnostic(bool, InlineNIOCheckIndex, true,                               \
 163           "Intrinsify java.nio.Buffer.checkIndex")                          \
 164                                                                             \
 165   develop(bool, CanonicalizeNodes, true,                                    \
 166           "Canonicalize graph nodes")                                       \
 167                                                                             \
 168   develop(bool, PrintCanonicalization, false,                               \
 169           "Print graph node canonicalization")                              \
 170                                                                             \
 171   develop(bool, UseTableRanges, true,                                       \
 172           "Faster versions of lookup table using ranges")                   \
 173                                                                             \
 174   develop_pd(bool, RoundFPResults,                                          \
 175           "Indicates whether rounding is needed for floating point results")\
 176                                                                             \
 177   develop(intx, NestedInliningSizeRatio, 90,                                \
 178           "Percentage of prev. allowed inline size in recursive inlining")  \
 179           range(0, 100)                                                     \
 180                                                                             \
 181   notproduct(bool, PrintIRWithLIR, false,                                   \
 182           "Print IR instructions with generated LIR")                       \
 183                                                                             \
 184   notproduct(bool, PrintLIRWithAssembly, false,                             \
 185           "Show LIR instruction with generated assembly")                   \
 186                                                                             \
 187   develop(bool, CommentedAssembly, trueInDebug,                             \
 188           "Show extra info in PrintNMethods output")                        \
 189                                                                             \
 190   develop(bool, LIRTracePeephole, false,                                    \
 191           "Trace peephole optimizer")                                       \
 192                                                                             \
 193   develop(bool, LIRTraceExecution, false,                                   \
 194           "add LIR code which logs the execution of blocks")                \
 195                                                                             \
 196   product_pd(bool, LIRFillDelaySlots,                                       \
 197              "fill delays on on SPARC with LIR")                            \
 198                                                                             \
 199   develop_pd(bool, CSEArrayLength,                                          \
 200           "Create separate nodes for length in array accesses")             \
 201                                                                             \
 202   develop_pd(bool, TwoOperandLIRForm,                                       \
 203           "true if LIR requires src1 and dst to match in binary LIR ops")   \
 204                                                                             \
 205   develop(intx, TraceLinearScanLevel, 0,                                    \
 206           "Debug levels for the linear scan allocator")                     \
 207           range(0, 4)                                                       \
 208                                                                             \
 209   develop(bool, StressLinearScan, false,                                    \
 210           "scramble block order used by LinearScan (stress test)")          \
 211                                                                             \
 212   product(bool, TimeLinearScan, false,                                      \
 213           "detailed timing of LinearScan phases")                           \
 214                                                                             \
 215   develop(bool, TimeEachLinearScan, false,                                  \
 216           "print detailed timing of each LinearScan run")                   \
 217                                                                             \
 218   develop(bool, CountLinearScan, false,                                     \
 219           "collect statistic counters during LinearScan")                   \
 220                                                                             \
 221   /* C1 variable */                                                         \
 222                                                                             \
 223   develop(bool, C1Breakpoint, false,                                        \
 224           "Sets a breakpoint at entry of each compiled method")             \
 225                                                                             \
 226   develop(bool, ImplicitDiv0Checks, true,                                   \
 227           "Use implicit division by zero checks")                           \
 228                                                                             \
 229   develop(bool, PinAllInstructions, false,                                  \
 230           "All instructions are pinned")                                    \
 231                                                                             \
 232   develop(bool, UseFastNewInstance, true,                                   \
 233           "Use fast inlined instance allocation")                           \
 234                                                                             \
 235   develop(bool, UseFastNewTypeArray, true,                                  \
 236           "Use fast inlined type array allocation")                         \
 237                                                                             \
 238   develop(bool, UseFastNewObjectArray, true,                                \
 239           "Use fast inlined object array allocation")                       \
 240                                                                             \
 241   develop(bool, UseFastLocking, true,                                       \
 242           "Use fast inlined locking code")                                  \
 243                                                                             \
 244   develop(bool, UseSlowPath, false,                                         \
 245           "For debugging: test slow cases by always using them")            \
 246                                                                             \
 247   develop(bool, GenerateArrayStoreCheck, true,                              \
 248           "Generates code for array store checks")                          \
 249                                                                             \
 250   develop(bool, DeoptC1, true,                                              \
 251           "Use deoptimization in C1")                                       \
 252                                                                             \
 253   develop(bool, PrintBailouts, false,                                       \
 254           "Print bailout and its reason")                                   \
 255                                                                             \
 256   develop(bool, TracePatching, false,                                       \
 257          "Trace patching of field access on uninitialized classes")         \
 258                                                                             \
 259   develop(bool, PatchALot, false,                                           \
 260           "Marks all fields as having unloaded classes")                    \
 261                                                                             \
 262   develop(bool, PrintNotLoaded, false,                                      \
 263           "Prints where classes are not loaded during code generation")     \
 264                                                                             \
 265   develop(bool, PrintLIR, false,                                            \
 266           "print low-level IR")                                             \
 267                                                                             \
 268   develop(bool, BailoutAfterHIR, false,                                     \
 269           "bailout of compilation after building of HIR")                   \
 270                                                                             \
 271   develop(bool, BailoutAfterLIR, false,                                     \
 272           "bailout of compilation after building of LIR")                   \
 273                                                                             \
 274   develop(bool, BailoutOnExceptionHandlers, false,                          \
 275           "bailout of compilation for methods with exception handlers")     \
 276                                                                             \
 277   develop(bool, InstallMethods, true,                                       \
 278           "Install methods at the end of successful compilations")          \
 279                                                                             \
 280   develop(intx, NMethodSizeLimit, (64*K)*wordSize,                          \
 281           "Maximum size of a compiled method.")                             \
 282           range(0, max_jint)                                                \
 283                                                                             \
 284   develop(bool, TraceFPUStack, false,                                       \
 285           "Trace emulation of the FPU stack (intel only)")                  \
 286                                                                             \
 287   develop(bool, TraceFPURegisterUsage, false,                               \
 288           "Trace usage of FPU registers at start of blocks (intel only)")   \
 289                                                                             \
 290   develop(bool, OptimizeUnsafes, true,                                      \
 291           "Optimize raw unsafe ops")                                        \
 292                                                                             \
 293   develop(bool, PrintUnsafeOptimization, false,                             \
 294           "Print optimization of raw unsafe ops")                           \
 295                                                                             \
 296   develop(intx, InstructionCountCutoff, 37000,                              \
 297           "If GraphBuilder adds this many instructions, bails out")         \
 298           range(0, max_jint)                                                \
 299                                                                             \
 300   develop(bool, ComputeExactFPURegisterUsage, true,                         \
 301           "Compute additional live set for fpu registers to simplify fpu stack merge (Intel only)") \
 302                                                                             \
 303   product(bool, C1ProfileCalls, true,                                       \
 304           "Profile calls when generating code for updating MDOs")           \
 305                                                                             \
 306   product(bool, C1ProfileVirtualCalls, true,                                \
 307           "Profile virtual calls when generating code for updating MDOs")   \
 308                                                                             \
 309   product(bool, C1ProfileInlinedCalls, true,                                \
 310           "Profile inlined calls when generating code for updating MDOs")   \
 311                                                                             \
 312   product(bool, C1ProfileBranches, true,                                    \
 313           "Profile branches when generating code for updating MDOs")        \
 314                                                                             \
 315   product(bool, C1ProfileCheckcasts, true,                                  \
 316           "Profile checkcasts when generating code for updating MDOs")      \
 317                                                                             \
 318   product(bool, C1OptimizeVirtualCallProfiling, true,                       \
 319           "Use CHA and exact type results at call sites when updating MDOs")\
 320                                                                             \
 321   product(bool, C1UpdateMethodData, trueInTiered,                           \
 322           "Update MethodData*s in Tier1-generated code")                    \
 323                                                                             \
 324   develop(bool, PrintCFGToFile, false,                                      \
 325           "print control flow graph to a separate file during compilation") \
 326                                                                             \
 327 // Read default values for c1 globals
 328 
 329 C1_FLAGS(DECLARE_DEVELOPER_FLAG, \
 330          DECLARE_PD_DEVELOPER_FLAG, \
 331          DECLARE_PRODUCT_FLAG, \
 332          DECLARE_PD_PRODUCT_FLAG, \
 333          DECLARE_DIAGNOSTIC_FLAG, \
 334          DECLARE_PD_DIAGNOSTIC_FLAG, \
 335          DECLARE_NOTPRODUCT_FLAG, \
 336          IGNORE_RANGE, \
 337          IGNORE_CONSTRAINT, \
 338          IGNORE_WRITEABLE)
 339 
 340 #endif // SHARE_VM_C1_C1_GLOBALS_HPP