1 /*
   2  * Copyright (c) 2000, 2015, 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 #ifdef TARGET_ARCH_x86
  30 # include "c1_globals_x86.hpp"
  31 #endif
  32 #ifdef TARGET_ARCH_sparc
  33 # include "c1_globals_sparc.hpp"
  34 #endif
  35 #ifdef TARGET_ARCH_arm
  36 # include "c1_globals_arm.hpp"
  37 #endif
  38 #ifdef TARGET_ARCH_ppc
  39 # include "c1_globals_ppc.hpp"
  40 #endif
  41 #ifdef TARGET_ARCH_aarch64
  42 # include "c1_globals_aarch64.hpp"
  43 #endif
  44 #ifdef TARGET_OS_FAMILY_linux
  45 # include "c1_globals_linux.hpp"
  46 #endif
  47 #ifdef TARGET_OS_FAMILY_solaris
  48 # include "c1_globals_solaris.hpp"
  49 #endif
  50 #ifdef TARGET_OS_FAMILY_windows
  51 # include "c1_globals_windows.hpp"
  52 #endif
  53 #ifdef TARGET_OS_FAMILY_aix
  54 # include "c1_globals_aix.hpp"
  55 #endif
  56 #ifdef TARGET_OS_FAMILY_bsd
  57 # include "c1_globals_bsd.hpp"
  58 #endif
  59 
  60 //
  61 // Defines all global flags used by the client compiler.
  62 //
  63 #define C1_FLAGS(develop, develop_pd, product, product_pd, diagnostic, notproduct, range, constraint) \
  64                                                                             \
  65   /* Printing */                                                            \
  66   notproduct(bool, PrintC1Statistics, false,                                \
  67           "Print Compiler1 statistics" )                                    \
  68                                                                             \
  69   notproduct(bool, PrintInitialBlockList, false,                            \
  70           "Print block list of BlockListBuilder")                           \
  71                                                                             \
  72   notproduct(bool, PrintCFG, false,                                         \
  73           "Print control flow graph after each change")                     \
  74                                                                             \
  75   notproduct(bool, PrintCFG0, false,                                        \
  76           "Print control flow graph after construction")                    \
  77                                                                             \
  78   notproduct(bool, PrintCFG1, false,                                        \
  79           "Print control flow graph after optimizations")                   \
  80                                                                             \
  81   notproduct(bool, PrintCFG2, false,                                        \
  82           "Print control flow graph before code generation")                \
  83                                                                             \
  84   notproduct(bool, PrintIRDuringConstruction, false,                        \
  85           "Print IR as it's being constructed (helpful for debugging frontend)")\
  86                                                                             \
  87   notproduct(bool, PrintPhiFunctions, false,                                \
  88           "Print phi functions when they are created and simplified")       \
  89                                                                             \
  90   notproduct(bool, PrintIR, false,                                          \
  91           "Print full intermediate representation after each change")       \
  92                                                                             \
  93   notproduct(bool, PrintIR0, false,                                         \
  94           "Print full intermediate representation after construction")      \
  95                                                                             \
  96   notproduct(bool, PrintIR1, false,                                         \
  97           "Print full intermediate representation after optimizations")     \
  98                                                                             \
  99   notproduct(bool, PrintIR2, false,                                         \
 100           "Print full intermediate representation before code generation")  \
 101                                                                             \
 102   notproduct(bool, PrintSimpleStubs, false,                                 \
 103           "Print SimpleStubs")                                              \
 104                                                                             \
 105   /* C1 optimizations */                                                    \
 106                                                                             \
 107   develop(bool, UseC1Optimizations, true,                                   \
 108           "Turn on C1 optimizations")                                       \
 109                                                                             \
 110   develop(bool, SelectivePhiFunctions, true,                                \
 111           "create phi functions at loop headers only when necessary")       \
 112                                                                             \
 113   develop(bool, OptimizeIfOps, true,                                        \
 114           "Optimize multiple IfOps")                                        \
 115                                                                             \
 116   develop(bool, DoCEE, true,                                                \
 117           "Do Conditional Expression Elimination to simplify CFG")          \
 118                                                                             \
 119   develop(bool, PrintCEE, false,                                            \
 120           "Print Conditional Expression Elimination")                       \
 121                                                                             \
 122   develop(bool, UseLocalValueNumbering, true,                               \
 123           "Use Local Value Numbering (embedded in GraphBuilder)")           \
 124                                                                             \
 125   develop(bool, UseGlobalValueNumbering, true,                              \
 126           "Use Global Value Numbering (separate phase)")                    \
 127                                                                             \
 128   product(bool, UseLoopInvariantCodeMotion, true,                           \
 129           "Simple loop invariant code motion for short loops during GVN")   \
 130                                                                             \
 131   develop(bool, TracePredicateFailedTraps, false,                           \
 132           "trace runtime traps caused by predicate failure")                \
 133                                                                             \
 134   develop(bool, StressLoopInvariantCodeMotion, false,                       \
 135           "stress loop invariant code motion")                              \
 136                                                                             \
 137   develop(bool, TraceRangeCheckElimination, false,                          \
 138           "Trace Range Check Elimination")                                  \
 139                                                                             \
 140   develop(bool, AssertRangeCheckElimination, false,                         \
 141           "Assert Range Check Elimination")                                 \
 142                                                                             \
 143   develop(bool, StressRangeCheckElimination, false,                         \
 144           "stress Range Check Elimination")                                 \
 145                                                                             \
 146   develop(bool, PrintValueNumbering, false,                                 \
 147           "Print Value Numbering")                                          \
 148                                                                             \
 149   product(intx, ValueMapInitialSize, 11,                                    \
 150           "Initial size of a value map")                                    \
 151           range(1, NOT_LP64(1*K) LP64_ONLY(32*K))                           \
 152                                                                             \
 153   product(intx, ValueMapMaxLoopSize, 8,                                     \
 154           "maximum size of a loop optimized by global value numbering")     \
 155                                                                             \
 156   develop(bool, EliminateBlocks, true,                                      \
 157           "Eliminate unneccessary basic blocks")                            \
 158                                                                             \
 159   develop(bool, PrintBlockElimination, false,                               \
 160           "Print basic block elimination")                                  \
 161                                                                             \
 162   develop(bool, EliminateNullChecks, true,                                  \
 163           "Eliminate unneccessary null checks")                             \
 164                                                                             \
 165   develop(bool, PrintNullCheckElimination, false,                           \
 166           "Print null check elimination")                                   \
 167                                                                             \
 168   develop(bool, EliminateFieldAccess, true,                                 \
 169           "Optimize field loads and stores")                                \
 170                                                                             \
 171   develop(bool, InlineMethodsWithExceptionHandlers, true,                   \
 172           "Inline methods containing exception handlers "                   \
 173           "(NOTE: does not work with current backend)")                     \
 174                                                                             \
 175   product(bool, InlineSynchronizedMethods, true,                            \
 176           "Inline synchronized methods")                                    \
 177                                                                             \
 178   develop(bool, InlineNIOCheckIndex, true,                                  \
 179           "Intrinsify java.nio.Buffer.checkIndex")                          \
 180                                                                             \
 181   develop(bool, CanonicalizeNodes, true,                                    \
 182           "Canonicalize graph nodes")                                       \
 183                                                                             \
 184   develop(bool, PrintCanonicalization, false,                               \
 185           "Print graph node canonicalization")                              \
 186                                                                             \
 187   develop(bool, UseTableRanges, true,                                       \
 188           "Faster versions of lookup table using ranges")                   \
 189                                                                             \
 190   develop_pd(bool, RoundFPResults,                                          \
 191           "Indicates whether rounding is needed for floating point results")\
 192                                                                             \
 193   develop(intx, NestedInliningSizeRatio, 90,                                \
 194           "Percentage of prev. allowed inline size in recursive inlining")  \
 195           range(0, 100)                                                     \
 196                                                                             \
 197   notproduct(bool, PrintIRWithLIR, false,                                   \
 198           "Print IR instructions with generated LIR")                       \
 199                                                                             \
 200   notproduct(bool, PrintLIRWithAssembly, false,                             \
 201           "Show LIR instruction with generated assembly")                   \
 202                                                                             \
 203   develop(bool, CommentedAssembly, trueInDebug,                             \
 204           "Show extra info in PrintNMethods output")                        \
 205                                                                             \
 206   develop(bool, LIRTracePeephole, false,                                    \
 207           "Trace peephole optimizer")                                       \
 208                                                                             \
 209   develop(bool, LIRTraceExecution, false,                                   \
 210           "add LIR code which logs the execution of blocks")                \
 211                                                                             \
 212   product_pd(bool, LIRFillDelaySlots,                                       \
 213              "fill delays on on SPARC with LIR")                            \
 214                                                                             \
 215   develop_pd(bool, CSEArrayLength,                                          \
 216           "Create separate nodes for length in array accesses")             \
 217                                                                             \
 218   develop_pd(bool, TwoOperandLIRForm,                                       \
 219           "true if LIR requires src1 and dst to match in binary LIR ops")   \
 220                                                                             \
 221   develop(intx, TraceLinearScanLevel, 0,                                    \
 222           "Debug levels for the linear scan allocator")                     \
 223                                                                             \
 224   develop(bool, StressLinearScan, false,                                    \
 225           "scramble block order used by LinearScan (stress test)")          \
 226                                                                             \
 227   product(bool, TimeLinearScan, false,                                      \
 228           "detailed timing of LinearScan phases")                           \
 229                                                                             \
 230   develop(bool, TimeEachLinearScan, false,                                  \
 231           "print detailed timing of each LinearScan run")                   \
 232                                                                             \
 233   develop(bool, CountLinearScan, false,                                     \
 234           "collect statistic counters during LinearScan")                   \
 235                                                                             \
 236   /* C1 variable */                                                         \
 237                                                                             \
 238   develop(bool, C1Breakpoint, false,                                        \
 239           "Sets a breakpoint at entry of each compiled method")             \
 240                                                                             \
 241   develop(bool, ImplicitDiv0Checks, true,                                   \
 242           "Use implicit division by zero checks")                           \
 243                                                                             \
 244   develop(bool, PinAllInstructions, false,                                  \
 245           "All instructions are pinned")                                    \
 246                                                                             \
 247   develop(bool, UseFastNewInstance, true,                                   \
 248           "Use fast inlined instance allocation")                           \
 249                                                                             \
 250   develop(bool, UseFastNewTypeArray, true,                                  \
 251           "Use fast inlined type array allocation")                         \
 252                                                                             \
 253   develop(bool, UseFastNewObjectArray, true,                                \
 254           "Use fast inlined object array allocation")                       \
 255                                                                             \
 256   develop(bool, UseFastLocking, true,                                       \
 257           "Use fast inlined locking code")                                  \
 258                                                                             \
 259   develop(bool, UseSlowPath, false,                                         \
 260           "For debugging: test slow cases by always using them")            \
 261                                                                             \
 262   develop(bool, GenerateArrayStoreCheck, true,                              \
 263           "Generates code for array store checks")                          \
 264                                                                             \
 265   develop(bool, DeoptC1, true,                                              \
 266           "Use deoptimization in C1")                                       \
 267                                                                             \
 268   develop(bool, PrintBailouts, false,                                       \
 269           "Print bailout and its reason")                                   \
 270                                                                             \
 271   develop(bool, TracePatching, false,                                       \
 272          "Trace patching of field access on uninitialized classes")         \
 273                                                                             \
 274   develop(bool, PatchALot, false,                                           \
 275           "Marks all fields as having unloaded classes")                    \
 276                                                                             \
 277   develop(bool, PrintNotLoaded, false,                                      \
 278           "Prints where classes are not loaded during code generation")     \
 279                                                                             \
 280   develop(bool, PrintLIR, false,                                            \
 281           "print low-level IR")                                             \
 282                                                                             \
 283   develop(bool, BailoutAfterHIR, false,                                     \
 284           "bailout of compilation after building of HIR")                   \
 285                                                                             \
 286   develop(bool, BailoutAfterLIR, false,                                     \
 287           "bailout of compilation after building of LIR")                   \
 288                                                                             \
 289   develop(bool, BailoutOnExceptionHandlers, false,                          \
 290           "bailout of compilation for methods with exception handlers")     \
 291                                                                             \
 292   develop(bool, InstallMethods, true,                                       \
 293           "Install methods at the end of successful compilations")          \
 294                                                                             \
 295   develop(intx, NMethodSizeLimit, (64*K)*wordSize,                          \
 296           "Maximum size of a compiled method.")                             \
 297                                                                             \
 298   develop(bool, TraceFPUStack, false,                                       \
 299           "Trace emulation of the FPU stack (intel only)")                  \
 300                                                                             \
 301   develop(bool, TraceFPURegisterUsage, false,                               \
 302           "Trace usage of FPU registers at start of blocks (intel only)")   \
 303                                                                             \
 304   develop(bool, OptimizeUnsafes, true,                                      \
 305           "Optimize raw unsafe ops")                                        \
 306                                                                             \
 307   develop(bool, PrintUnsafeOptimization, false,                             \
 308           "Print optimization of raw unsafe ops")                           \
 309                                                                             \
 310   develop(intx, InstructionCountCutoff, 37000,                              \
 311           "If GraphBuilder adds this many instructions, bails out")         \
 312                                                                             \
 313   develop(bool, ComputeExactFPURegisterUsage, true,                         \
 314           "Compute additional live set for fpu registers to simplify fpu stack merge (Intel only)") \
 315                                                                             \
 316   product(bool, C1ProfileCalls, true,                                       \
 317           "Profile calls when generating code for updating MDOs")           \
 318                                                                             \
 319   product(bool, C1ProfileVirtualCalls, true,                                \
 320           "Profile virtual calls when generating code for updating MDOs")   \
 321                                                                             \
 322   product(bool, C1ProfileInlinedCalls, true,                                \
 323           "Profile inlined calls when generating code for updating MDOs")   \
 324                                                                             \
 325   product(bool, C1ProfileBranches, true,                                    \
 326           "Profile branches when generating code for updating MDOs")        \
 327                                                                             \
 328   product(bool, C1ProfileCheckcasts, true,                                  \
 329           "Profile checkcasts when generating code for updating MDOs")      \
 330                                                                             \
 331   product(bool, C1OptimizeVirtualCallProfiling, true,                       \
 332           "Use CHA and exact type results at call sites when updating MDOs")\
 333                                                                             \
 334   product(bool, C1UpdateMethodData, trueInTiered,                           \
 335           "Update MethodData*s in Tier1-generated code")                    \
 336                                                                             \
 337   develop(bool, PrintCFGToFile, false,                                      \
 338           "print control flow graph to a separate file during compilation") \
 339                                                                             \
 340   diagnostic(bool, C1PatchInvokeDynamic, true,                              \
 341              "Patch invokedynamic appendix not known at compile time")      \
 342                                                                             \
 343 // Read default values for c1 globals
 344 
 345 C1_FLAGS(DECLARE_DEVELOPER_FLAG, \
 346          DECLARE_PD_DEVELOPER_FLAG, \
 347          DECLARE_PRODUCT_FLAG, \
 348          DECLARE_PD_PRODUCT_FLAG, \
 349          DECLARE_DIAGNOSTIC_FLAG, \
 350          DECLARE_NOTPRODUCT_FLAG, \
 351          IGNORE_RANGE, \
 352          IGNORE_CONSTRAINT)
 353 
 354 #endif // SHARE_VM_C1_C1_GLOBALS_HPP