c1_globals.hpp

/*
 * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
 * 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.
 *
 * 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.
 *
 */

//
// Defines all global flags used by the client compiler.
//
#ifndef TIERED
  #define NOT_TIERED(x) x
#else
  #define NOT_TIERED(x)
#endif

#define C1_FLAGS(develop, develop_pd, product, product_pd, notproduct)      \
                                                                            \
  /* Printing */                                                            \
  notproduct(bool, PrintC1Statistics, false,                                \
          "Print Compiler1 statistics" )                                    \
                                                                            \
  notproduct(bool, PrintInitialBlockList, false,                            \
          "Print block list of BlockListBuilder")                           \
                                                                            \
  notproduct(bool, PrintCFG, false,                                         \
          "Print control flow graph after each change")                     \
                                                                            \
  notproduct(bool, PrintCFG0, false,                                        \
          "Print control flow graph after construction")                    \
                                                                            \
  notproduct(bool, PrintCFG1, false,                                        \
          "Print control flow graph after optimizations")                   \
                                                                            \
  notproduct(bool, PrintCFG2, false,                                        \
          "Print control flow graph before code generation")                \
                                                                            \
  notproduct(bool, PrintIRDuringConstruction, false,                        \
          "Print IR as it's being constructed (helpful for debugging frontend)")\
                                                                            \
  notproduct(bool, PrintPhiFunctions, false,                                   \
          "Print phi functions when they are created and simplified")       \
                                                                            \
  notproduct(bool, PrintIR, false,                                          \
          "Print full intermediate representation after each change")       \
                                                                            \
  notproduct(bool, PrintIR0, false,                                         \
          "Print full intermediate representation after construction")      \
                                                                            \
  notproduct(bool, PrintIR1, false,                                         \
          "Print full intermediate representation after optimizations")     \
                                                                            \
  notproduct(bool, PrintIR2, false,                                         \
          "Print full intermediate representation before code generation")  \
                                                                            \
  notproduct(bool, PrintSimpleStubs, false,                                 \
          "Print SimpleStubs")                                              \
                                                                            \
  /* C1 optimizations */                                                    \
                                                                            \
  develop(bool, UseC1Optimizations, true,                                   \
          "Turn on C1 optimizations")                                       \
                                                                            \
  develop(bool, SelectivePhiFunctions, true,                                \
          "create phi functions at loop headers only when necessary")       \
                                                                            \
  develop(bool, DoCEE, true,                                                \
          "Do Conditional Expression Elimination to simplify CFG")          \
                                                                            \
  develop(bool, PrintCEE, false,                                            \
          "Print Conditional Expression Elimination")                       \
                                                                            \
  develop(bool, UseLocalValueNumbering, true,                               \
          "Use Local Value Numbering (embedded in GraphBuilder)")           \
                                                                            \
  develop(bool, UseGlobalValueNumbering, true,                              \
          "Use Global Value Numbering (separate phase)")                    \
                                                                            \
  develop(bool, PrintValueNumbering, false,                                 \
          "Print Value Numbering")                                          \
                                                                            \
  product(intx, ValueMapInitialSize, 11,                                    \
          "Initial size of a value map")                                    \
                                                                            \
  product(intx, ValueMapMaxLoopSize, 8,                                     \
          "maximum size of a loop optimized by global value numbering")     \
                                                                            \
  develop(bool, EliminateBlocks, true,                                      \
          "Eliminate unneccessary basic blocks")                            \
                                                                            \
  develop(bool, PrintBlockElimination, false,                               \
          "Print basic block elimination")                                  \
                                                                            \
  develop(bool, EliminateNullChecks, true,                                  \
          "Eliminate unneccessary null checks")                             \
                                                                            \
  develop(bool, PrintNullCheckElimination, false,                           \
          "Print null check elimination")                                   \
                                                                            \
  develop(bool, EliminateFieldAccess, true,                                 \
          "Optimize field loads and stores")                                \
                                                                            \
  develop(bool, InlineMethodsWithExceptionHandlers, true,                   \
          "Inline methods containing exception handlers "                   \
          "(NOTE: does not work with current backend)")                     \
                                                                            \
  develop(bool, InlineSynchronizedMethods, true,                            \
          "Inline synchronized methods")                                    \
                                                                            \
  develop(bool, InlineNIOCheckIndex, true,                                  \
          "Intrinsify java.nio.Buffer.checkIndex")                          \
                                                                            \
  develop(bool, CanonicalizeNodes, true,                                    \
          "Canonicalize graph nodes")                                       \
                                                                            \
  develop(bool, CanonicalizeExperimental, false,                            \
          "Canonicalize graph nodes, experimental code")                    \
                                                                            \
  develop(bool, PrintCanonicalization, false,                               \
          "Print graph node canonicalization")                              \
                                                                            \
  develop(bool, UseTableRanges, true,                                       \
          "Faster versions of lookup table using ranges")                   \
                                                                            \
  develop(bool, UseFastExceptionHandling, true,                             \
          "Faster handling of exceptions")                                  \
                                                                            \
  develop_pd(bool, RoundFPResults,                                          \
          "Indicates whether rounding is needed for floating point results")\
                                                                            \
  develop(intx, NestedInliningSizeRatio, 90,                                \
          "Percentage of prev. allowed inline size in recursive inlining")  \
                                                                            \
  notproduct(bool, PrintIRWithLIR, false,                                   \
          "Print IR instructions with generated LIR")                       \
                                                                            \
  notproduct(bool, PrintLIRWithAssembly, false,                             \
          "Show LIR instruction with generated assembly")                   \
                                                                            \
  develop(bool, CommentedAssembly, trueInDebug,                             \
          "Show extra info in PrintNMethods output")                        \
                                                                            \
  develop(bool, LIRTracePeephole, false,                                    \
          "Trace peephole optimizer")                                       \
                                                                            \
  develop(bool, LIRTraceExecution, false,                                   \
          "add LIR code which logs the execution of blocks")                \
                                                                            \
  product_pd(bool, LIRFillDelaySlots,                                       \
             "fill delays on on SPARC with LIR")                            \
                                                                            \
  develop_pd(bool, CSEArrayLength,                                          \
          "Create separate nodes for length in array accesses")             \
                                                                            \
  develop_pd(bool, TwoOperandLIRForm,                                       \
          "true if LIR requires src1 and dst to match in binary LIR ops")   \
                                                                            \
  develop(intx, TraceLinearScanLevel, 0,                                    \
          "Debug levels for the linear scan allocator")                     \
                                                                            \
  develop(bool, StressLinearScan, false,                                    \
          "scramble block order used by LinearScan (stress test)")          \
                                                                            \
  product(bool, TimeLinearScan, false,                                      \
          "detailed timing of LinearScan phases")                           \
                                                                            \
  develop(bool, TimeEachLinearScan, false,                                  \
          "print detailed timing of each LinearScan run")                   \
                                                                            \
  develop(bool, CountLinearScan, false,                                     \
          "collect statistic counters during LinearScan")                   \
                                                                            \
  /* C1 variable */                                                         \
                                                                            \
  develop(bool, C1Breakpoint, false,                                        \
          "Sets a breakpoint at entry of each compiled method")             \
                                                                            \
  develop(bool, ImplicitDiv0Checks, true,                                   \
          "Use implicit division by zero checks")                           \
                                                                            \
  develop(bool, PinAllInstructions, false,                                  \
          "All instructions are pinned")                                    \
                                                                            \
  develop(bool, ValueStackPinStackAll, true,                                \
          "Pinning in ValueStack pin everything")                           \
                                                                            \
  develop(bool, UseFastNewInstance, true,                                   \
          "Use fast inlined instance allocation")                           \
                                                                            \
  develop(bool, UseFastNewTypeArray, true,                                  \
          "Use fast inlined type array allocation")                         \
                                                                            \
  develop(bool, UseFastNewObjectArray, true,                                \
          "Use fast inlined object array allocation")                       \
                                                                            \
  develop(bool, UseFastLocking, true,                                       \
          "Use fast inlined locking code")                                  \
                                                                            \
  develop(bool, UseSlowPath, false,                                         \
          "For debugging: test slow cases by always using them")            \
                                                                            \
  develop(bool, GenerateArrayStoreCheck, true,                              \
          "Generates code for array store checks")                          \
                                                                            \
  develop(bool, DeoptC1, true,                                              \
          "Use deoptimization in C1")                                       \
                                                                            \
  develop(bool, DeoptOnAsyncException, true,                                \
          "Deoptimize upon Thread.stop(); improves precision of IR")        \
                                                                            \
  develop(bool, PrintBailouts, false,                                       \
          "Print bailout and its reason")                                   \
                                                                            \
  develop(bool, TracePatching, false,                                       \
         "Trace patching of field access on uninitialized classes")         \
                                                                            \
  develop(bool, PatchALot, false,                                           \
          "Marks all fields as having unloaded classes")                    \
                                                                            \
  develop(bool, PrintNotLoaded, false,                                      \
          "Prints where classes are not loaded during code generation")     \
                                                                            \
  notproduct(bool, VerifyOopMaps, false,                                    \
          "Adds oopmap verification code to the generated code")            \
                                                                            \
  develop(bool, PrintLIR, false,                                            \
          "print low-level IR")                                             \
                                                                            \
  develop(bool, BailoutAfterHIR, false,                                     \
          "bailout of compilation after building of HIR")                   \
                                                                            \
  develop(bool, BailoutAfterLIR, false,                                     \
          "bailout of compilation after building of LIR")                   \
                                                                            \
  develop(bool, BailoutOnExceptionHandlers, false,                          \
          "bailout of compilation for methods with exception handlers")     \
                                                                            \
  develop(bool, InstallMethods, true,                                       \
          "Install methods at the end of successful compilations")          \
                                                                            \
  product(intx, CompilationRepeat, 0,                                       \
          "Number of times to recompile method before returning result")    \
                                                                            \
  develop(intx, NMethodSizeLimit, (32*K)*wordSize,                          \
          "Maximum size of a compiled method.")                             \
                                                                            \
  develop(bool, TraceFPUStack, false,                                       \
          "Trace emulation of the FPU stack (intel only)")                  \
                                                                            \
  develop(bool, TraceFPURegisterUsage, false,                               \
          "Trace usage of FPU registers at start of blocks (intel only)")   \
                                                                            \
  develop(bool, OptimizeUnsafes, true,                                      \
          "Optimize raw unsafe ops")                                        \
                                                                            \
  develop(bool, PrintUnsafeOptimization, false,                             \
          "Print optimization of raw unsafe ops")                           \
                                                                            \
  develop(intx, InstructionCountCutoff, 37000,                              \
          "If GraphBuilder adds this many instructions, bails out")         \
                                                                            \
  product_pd(intx, SafepointPollOffset,                                     \
          "Offset added to polling address (Intel only)")                   \
                                                                            \
  product(bool, UseNewFeature1, false,                                      \
          "Enable new feature for testing.  This is a dummy flag.")         \
                                                                            \
  product(bool, UseNewFeature2, false,                                      \
          "Enable new feature for testing.  This is a dummy flag.")         \
                                                                            \
  product(bool, UseNewFeature3, false,                                      \
          "Enable new feature for testing.  This is a dummy flag.")         \
                                                                            \
  product(bool, UseNewFeature4, false,                                      \
          "Enable new feature for testing.  This is a dummy flag.")         \
                                                                            \
  develop(bool, ComputeExactFPURegisterUsage, true,                         \
          "Compute additional live set for fpu registers to simplify fpu stack merge (Intel only)") \
                                                                            \
  product(bool, Tier1ProfileCalls, true,                                    \
          "Profile calls when generating code for updating MDOs")           \
                                                                            \
  product(bool, Tier1ProfileVirtualCalls, true,                             \
          "Profile virtual calls when generating code for updating MDOs")   \
                                                                            \
  product(bool, Tier1ProfileInlinedCalls, true,                             \
          "Profile inlined calls when generating code for updating MDOs")   \
                                                                            \
  product(bool, Tier1ProfileBranches, true,                                 \
          "Profile branches when generating code for updating MDOs")        \
                                                                            \
  product(bool, Tier1ProfileCheckcasts, true,                               \
          "Profile checkcasts when generating code for updating MDOs")      \
                                                                            \
  product(bool, Tier1OptimizeVirtualCallProfiling, true,                    \
          "Use CHA and exact type results at call sites when updating MDOs") \
                                                                            \
  develop(bool, Tier1CountOnly, false,                                      \
          "Don't schedule tier 2 compiles. Enter VM only")                  \
                                                                            \
  develop(bool, PrintCFGToFile, false,                                      \
          "print control flow graph to a separate file during compilation") \
                                                                            \


// Read default values for c1 globals
// #include "incls/_c1_globals_pd.hpp.incl"

C1_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_NOTPRODUCT_FLAG)