/* * Copyright (c) 2000, 2022, 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. * #ifndef SHARE_OPTO_C2_GLOBALS_HPP#define SHARE_OPTO_C2_GLOBALS_HPP#include "opto/c2_globals_pd.hpp" #include "runtime/globals_shared.hpp" #include "utilities/macros.hpp" // // Defines all globals flags used by the server compiler. // #define C2_FLAGS(develop, \bool , StressLCM, false , DIAGNOSTIC, \"Randomize instruction scheduling in LCM" ) \bool , StressGCM, false , DIAGNOSTIC, \"Randomize instruction scheduling in GCM" ) \bool , StressIGVN, false , DIAGNOSTIC, \"Randomize worklist traversal in IGVN" ) \bool , StressCCP, false , DIAGNOSTIC, \"Randomize worklist traversal in CCP" ) \"Seed for randomized stress testing (if unset, a random one is " \"generated). The seed is recorded in the compilation log, if " \"available." ) \bool , StressMethodHandleLinkerInlining, false , \"Stress inlining through method handle linkers" ) \"Insert this many extra nop instructions " \"in the prologue of every nmethod" ) \"Code alignment for interior entry points " \"in generated code (in bytes)" ) \"Align a loop if padding size in bytes is less or equal to this " \"value" ) \"Max vector size in bytes, " \"actual size could be less depending on elements type" ) \"Vector size limit in bytes for superword, " \"superword vector size limit in bytes" ) \"Partial inline size used for small array operations" \"(e.g. copy,cmp) acceleration." ) \bool , AlignVector, true , \"Perform vector store/load alignment in loop" ) \"Number of first instructions in a loop to align" ) \"Trace all operations on this IndexSet (-1 means all, 0 none)" ) \"Starting allocation size of Node_List data structures" ) \"Starting allocation size of Block_List data structures" ) \"Apply peephole optimizations to this peephole rule" ) \bool , PrintIdeal, false , \"Print ideal graph before code generation" ) \bool , PrintOpto, false , \"Print compiler2 attempts" ) \bool , PrintOptoInlining, false , \"Print compiler2 inlining decisions" ) \bool , VerifyIdealNodeCount, false , \"Verify that tracked dead ideal node count is accurate" ) \bool , PrintIdealNodeCount, false , \"Print liveness counts of ideal nodes" ) \bool , IdealizeClearArrayNode, DIAGNOSTIC, \"Replace ClearArrayNode by subgraph of basic operations." ) \bool , OptoBreakpoint, false , \"insert breakpoint at method entry" ) \bool , OptoBreakpointOSR, false , \"insert breakpoint at osr method entry" ) \"Break at construction of this Node (either _idx or _debug_idx)" ) \bool , OptoBreakpointC2R, false , \"insert breakpoint at runtime stub entry" ) \bool , OptoNoExecute, false , \"Attempt to parse and compile but do not execute generated code" ) \bool , PrintOptoStatistics, false , \"Print New compiler statistics" ) \bool , PrintOptoAssembly, false , DIAGNOSTIC, \"Print New compiler assembly output" ) \bool , OptoPeephole, \"Apply peephole optimizations after register allocation" ) \bool , PrintFrameConverterAssembly, false , \"Print New compiler assembly output for frame converters" ) \bool , PrintParseStatistics, false , \"Print nodes, transforms and new values made per bytecode parsed" )\bool , PrintOptoPeephole, false , \"Print New compiler peephole replacements" ) \bool , PrintCFGBlockFreq, false , \"Print CFG block frequencies" ) \bool , TraceOptoParse, false , \"Trace bytecode parse and control-flow merge" ) \"Unroll loop bodies with node count less than this" ) \"Unroll loop bodies with % node count of profile limit" ) \"Maximum number of unrolls for main loop" ) \bool , SuperWordLoopUnrollAnalysis, \"Map number of unrolls for main loop via " \"Superword Level Parallelism analysis" ) \bool , PostLoopMultiversioning, false , EXPERIMENTAL, \"Multi versioned post loops to eliminate range checks" ) \bool , TraceSuperWordLoopUnrollAnalysis, false , \"Trace what Superword Level Parallelism analysis applies" ) \bool , UseVectorMacroLogic, true , DIAGNOSTIC, \"Use ternary macro logic instructions" ) \"Minimum number of unroll loop bodies before checking progress" \"of rounds of unroll,optimize,.." ) \bool , UseSubwordForMaxVector, true , \"Use Subword Analysis to set maximum vector size" ) \bool , UseVectorCmov, false , \"Use Vectorized Cmov" ) \"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." ) \"Maximum number of individual allocations in an inline-expanded " \"multianewarray instruction" ) \bool , TraceProfileTripCount, false , \"Trace profile loop trip count information" ) \bool , UseCountedLoopSafepoints, false , \"Force counted loops to keep a safepoint" ) \bool , UseLoopPredicate, true , \"Generate a predicate to select fast/slow loop versions" ) \bool , TraceLoopPredicate, false , \"Trace generation of loop predicates" ) \bool , TraceLoopOpts, false , \"Trace executed loop optimizations" ) \bool , TraceLoopLimitCheck, false , \"Trace generation of loop limits checks" ) \bool , TraceRangeLimitCheck, false , \"Trace additional overflow checks in RCE" ) \/* OptimizeFill not yet supported on PowerPC. */ \ bool , OptimizeFill, true PPC64_ONLY(&& false ), \"convert fill/copy loops into intrinsic" ) \bool , TraceOptimizeFill, false , \"print detailed information about fill conversion" ) \bool , OptoCoalesce, true , \"Use Conservative Copy Coalescing in the Register Allocator" ) \bool , UseUniqueSubclasses, true , \"Narrow an abstract reference to the unique concrete subclass" ) \"When initializing fields, track up to this many words" ) \bool , ReduceFieldZeroing, true , \"When initializing fields, try to avoid needless zeroing" ) \bool , ReduceInitialCardMarks, true , \"When initializing fields, try to avoid needless card marks" ) \bool , ReduceBulkZeroing, true , \"When bulk-initializing, try to avoid needless zeroing" ) \bool , UseFPUForSpilling, false , \"Spill integer registers to FPU instead of stack when possible" ) \"Spill selection in reg allocator: scale area by (X/64K) before " \"adding cost" ) \bool , UseCISCSpill, \"Use ADLC supplied cisc instructions during allocation" ) \bool , VerifyGraphEdges , false , \"Verify Bi-directional Edges" ) \bool , VerifyDUIterators, true , \"Verify the safety of all iterations of Bi-directional Edges" ) \bool , VerifyHashTableKeys, true , \"Verify the immutability of keys in the VN hash tables" ) \bool , VerifyRegisterAllocator , false , \"Verify Register Allocator" ) \"Number of float LRG's that constitute high register pressure." \"-1: means the threshold is determined by number of available " \"float register for allocation" ) \"Number of integer LRG's that constitute high register pressure." \"-1: means the threshold is determined by number of available " \"integer register for allocation" ) \bool , TraceOptoPipelining, false , \"Trace pipelining information" ) \bool , TraceOptoOutput, false , \"Trace pipelining information" ) \bool , OptoScheduling, \"Instruction Scheduling after register allocation" ) \bool , OptoRegScheduling, \"Instruction Scheduling before register allocation for pressure" ) \bool , PartialPeelLoop, true , \"Partial peel (rotate) loops" ) \"Additional phis that can be created by partial peeling" ) \bool , TracePartialPeeling, false , \"Trace partial peeling (loop rotation) information" ) \bool , PartialPeelAtUnsignedTests, true , \"Partial peel at unsigned tests if no signed test exists" ) \bool , ReassociateInvariants, true , \"Enable reassociation of expressions with loop invariants." ) \bool , LoopUnswitching, true , \"Enable loop unswitching (a form of invariant test hoisting)" ) \bool , TraceLoopUnswitching, false , \"Trace loop unswitching" ) \bool , AllowVectorizeOnDemand, true , \"Globally suppress vectorization set in VectorizeMethod" ) \bool , UseSuperWord, true , \"Transform scalar operations into superword operations" ) \bool , SuperWordRTDepCheck, false , \"Enable runtime dependency checks." ) \bool , SuperWordReductions, true , \"Enable reductions support in superword." ) \bool , UseCMoveUnconditionally, false , \"Use CMove (scalar and vector) ignoring profitability test." ) \bool , DoReserveCopyInSuperWord, true , \"Create reserve copy of graph in SuperWord." ) \bool , TraceSuperWord, false , \"Trace superword transforms" ) \bool , TraceNewVectors, false , \"Trace creation of Vector nodes" ) \bool , OptoBundling, \"Generate nops to fill i-cache lines" ) \"Limit of ops to make speculative when using CMOVE" ) \bool , PrintIdealGraph, false , \"Print ideal graph to XML file / network interface. " \"By default attempts to connect to the visualizer on a socket." ) \"Level of detail of the ideal graph printout. " \"System-wide value, -1=printing is disabled, " \"0=print nothing except IGVPrintLevel directives, " \"4=all details printed. " \"Level of detail of printouts can be set on a per-method level " \"as well by using CompileCommand=option." ) \"Ideal graph printer to network port" ) \"127.0.0.1" , \"IP address to connect to visualizer" ) \"File to dump ideal graph to. If set overrides the " \"use of the network" ) \bool , UseBimorphicInlining, true , \"Profiling based inlining for two receivers" ) \bool , UseOnlyInlinedBimorphic, true , \"Don't use BimorphicInlining if can't inline a second method" ) \bool , SubsumeLoads, true , \"Attempt to compile while subsuming loads into machine " \"instructions." ) \bool , StressRecompilation, false , \"Recompile each compiled method without subsuming loads " \"or escape analysis." ) \"Don't do implicit null checks if NPE's in a method exceeds " \"limit" ) \"Set level of loop optimization for tier 1 compiles" ) \bool , OptimizeUnstableIf, true , DIAGNOSTIC, \"Optimize UnstableIf traps" ) \/* controls for heat-based inlining */ \ "If parser node generation exceeds limit stop inlining" ) \"Maximum number of nodes" ) \"Fudge Factor for certain optimizations" ) \bool , UseJumpTables, true , \"Use JumpTables instead of a binary search tree for switches" ) \bool , UseDivMod, true , \"Use combined DivMod instruction if available" ) \"Minimum number of targets in a generated jump table" ) \"Maximum number of targets in a generated jump table" ) \"Maximum sparseness for jumptables" ) \bool , EliminateLocks, true , \"Coarsen locks when possible" ) \bool , EliminateNestedLocks, true , \"Eliminate nested locks of the same object when possible" ) \bool , PrintLockStatistics, false , \"Print precise statistics on the dynamic lock usage" ) \bool , PrintPreciseRTMLockingStatistics, false , DIAGNOSTIC, \"Print per-lock-site statistics of rtm locking in JVM" ) \bool , PrintEliminateLocks, false , \"Print out when locks are eliminated" ) \bool , EliminateAutoBox, true , \"Control optimizations for autobox elimination" ) \"Sets max value cached by the java.lang.Integer autobox cache" ) \bool , AggressiveUnboxing, true , DIAGNOSTIC, \"Control optimizations for aggressive boxing elimination" ) \bool , TracePostallocExpand, false , "Trace expanding nodes after" \" register allocation." ) \bool , DoEscapeAnalysis, true , \"Perform escape analysis" ) \double , EscapeAnalysisTimeout, 20. DEBUG_ONLY(+40.), \"Abort EA when it reaches time limit (in sec)" ) \bool , ExitEscapeAnalysisOnTimeout, true , \"Exit or throw assert in EA when it reaches time limit" ) \bool , PrintEscapeAnalysis, false , \"Print the results of escape analysis" ) \bool , EliminateAllocations, true , \"Use escape analysis to eliminate allocations" ) \bool , PrintEliminateAllocations, false , \"Print out when allocations are eliminated" ) \"Array size (number of elements) limit for scalar replacement" ) \"Number of fields in instance limit for scalar replacement" ) \bool , OptimizePtrCompare, true , \"Use escape analysis to optimize pointers compare" ) \bool , PrintOptimizePtrCompare, false , \"Print information about optimized pointers compare" ) \bool , VerifyConnectionGraph , true , \"Verify Connection Graph construction in Escape Analysis" ) \bool , OptimizeStringConcat, true , \"Optimize the construction of Strings by StringBuilder" ) \bool , PrintOptimizeStringConcat, false , \"Print information about transformations performed on Strings" ) \"Recursion limit in PhaseMacroExpand::value_from_mem_phi" ) \"Maximum times call Label_Root to prevent stack overflow" ) \"Iterations limit in Node::dominates" ) \bool , BlockLayoutByFrequency, true , \"Use edge frequencies to drive block ordering" ) \"Minimum %% of a successor (predecessor) for which block " \"layout a will allow a fork (join) in a single chain" ) \bool , BlockLayoutRotateLoops, true , \"Allow back branches to be fall throughs in the block layout" ) \bool , InlineReflectionGetCallerClass, true , DIAGNOSTIC, \"inline sun.reflect.Reflection.getCallerClass(), known to be " \"part of base library DLL" ) \bool , InlineObjectCopy, true , DIAGNOSTIC, \"inline Object.clone and Arrays.copyOf[Range] intrinsics" ) \bool , SpecialStringCompareTo, true , DIAGNOSTIC, \"special version of string compareTo" ) \bool , SpecialStringIndexOf, true , DIAGNOSTIC, \"special version of string indexOf" ) \bool , SpecialStringEquals, true , DIAGNOSTIC, \"special version of string equals" ) \bool , SpecialArraysEquals, true , DIAGNOSTIC, \"special version of Arrays.equals(char[],char[])" ) \bool , SpecialEncodeISOArray, true , DIAGNOSTIC, \"special version of ISO_8859_1$Encoder.encodeISOArray" ) \bool , BailoutToInterpreterForThrows, false , \"Compiled methods which throws/catches exceptions will be " \"deopt and intp." ) \bool , ConvertCmpD2CmpF, true , \"Convert cmpD to cmpF when one input is constant in float range" ) \bool , ConvertFloat2IntClipping, true , \"Convert float2int clipping idiom to integer clipping" ) \bool , MonomorphicArrayCheck, true , \"Uncommon-trap array store checks that require full type check" ) \bool , TracePhaseCCP, false , \"Print progress during Conditional Constant Propagation" ) \bool , PrintDominators, false , \"Print out dominator trees for GVN" ) \bool , TraceSpilling, false , DIAGNOSTIC, \"Trace spilling" ) \bool , TraceTypeProfile, false , DIAGNOSTIC, \"Trace type profile" ) \bool , PoisonOSREntry, true , \"Detect abnormal calls to OSR code" ) \bool , SoftMatchFailure, trueInProduct, \"If the DFA fails to match a node, print a message and bail out" ) \bool , InlineAccessors, true , \"inline accessor methods (get/set)" ) \"% of major receiver type to all profiled receivers" ) \bool , PrintIntrinsics, false , DIAGNOSTIC, \"prints attempted and successful inlining of intrinsics" ) \bool , StressReflectiveCode, false , \"Use inexact types at allocations, etc., to test reflection" ) \bool , DebugInlinedCalls, true , DIAGNOSTIC, \"If false, restricts profiled locations to the root method only" ) \bool , VerifyLoopOptimizations, false , \"verify major loop optimizations" ) \bool , ProfileDynamicTypes, true , DIAGNOSTIC, \"do extra type profiling and use it more aggressively" ) \bool , TraceIterativeGVN, false , \"Print progress during Iterative Global Value Numbering" ) \bool , VerifyIterativeGVN, false , \"Verify Def-Use modifications during sparse Iterative Global " \"Value Numbering" ) \bool , TraceCISCSpill, false , \"Trace allocators use of cisc spillable instructions" ) \bool , SplitIfBlocks, true , \"Clone compares and control flow through merge points to fold " \"some branches" ) \"Scaling factor for branch frequencies (deprecated)" ) \bool , VerifyAliases, false , \"perform extra checks on the results of alias analysis" ) \"maximum number of nested calls that are inlined by high tier " \"compiler" ) \"maximum number of nested recursive calls that are inlined by " \"high tier compiler" ) \"Only inline already compiled methods if their code size is " \"less than this" ) \"The maximum bytecode size of a method to be inlined by high " \"tier compiler" ) \"The maximum bytecode size of a frequent method to be inlined" ) \"The maximum bytecode size of a trivial method to be inlined by " \"high tier compiler" ) \bool , IncrementalInline, true , \"do post parse inlining" ) \bool , IncrementalInlineMH, true , DIAGNOSTIC, \"do post parse inlining of method handle calls" ) \bool , IncrementalInlineVirtual, true , DIAGNOSTIC, \"do post parse inlining of virtual calls" ) \bool , AlwaysIncrementalInline, false , \"do all inlining incrementally" ) \bool , IncrementalInlineForceCleanup, false , DIAGNOSTIC, \"do cleanup after every iteration of incremental inlining" ) \"max number of live nodes in a method" ) \bool , OptimizeExpensiveOps, true , DIAGNOSTIC, \"Find best control for expensive operations" ) \bool , UseMathExactIntrinsics, true , DIAGNOSTIC, \"Enables intrinsification of various java.lang.Math functions" ) \bool , UseCharacterCompareIntrinsics, false , DIAGNOSTIC, \"Enables intrinsification of java.lang.Character functions" ) \bool , UseMultiplyToLenIntrinsic, false , DIAGNOSTIC, \"Enables intrinsification of BigInteger.multiplyToLen()" ) \bool , UseSquareToLenIntrinsic, false , DIAGNOSTIC, \"Enables intrinsification of BigInteger.squareToLen()" ) \bool , UseMulAddIntrinsic, false , DIAGNOSTIC, \"Enables intrinsification of BigInteger.mulAdd()" ) \bool , UseMontgomeryMultiplyIntrinsic, false , DIAGNOSTIC, \"Enables intrinsification of BigInteger.montgomeryMultiply()" ) \bool , UseMontgomerySquareIntrinsic, false , DIAGNOSTIC, \"Enables intrinsification of BigInteger.montgomerySquare()" ) \bool , EnableVectorSupport, false , EXPERIMENTAL, \"Enables VectorSupport intrinsics" ) \bool , EnableVectorReboxing, false , EXPERIMENTAL, \"Enables reboxing of vectors" ) \bool , EnableVectorAggressiveReboxing, false , EXPERIMENTAL, \"Enables aggressive reboxing of vectors" ) \bool , UseVectorStubs, false , EXPERIMENTAL, \"Use stubs for vector transcendental operations" ) \bool , UseTypeSpeculation, true , \"Speculatively propagate types from profiles" ) \bool , UseInlineDepthForSpeculativeTypes, true , DIAGNOSTIC, \"Carry inline depth of profile point with speculative type " \"and give priority to profiling from lower inline depth" ) \bool , TrapBasedRangeChecks, \"Generate code for range checks that uses a cmp and trap " \"instruction raising SIGTRAP. Used on PPC64." ) \"Maximum number of arraycopy elements inlined as a sequence of" \"loads/stores" ) \bool , StressArrayCopyMacroNode, false , \"Perform ArrayCopy load/store replacement during IGVN only" ) \bool , RenumberLiveNodes, true , \"Renumber live nodes" ) \"Number of iterations in strip mined loop" ) \"Loop with fewer iterations are not strip mined" ) \bool , UseProfiledLoopPredicate, true , \"Move predicates out of loops based on profiling data" ) \bool , ExpandSubTypeCheckAtParseTime, false , DIAGNOSTIC, \"Do not use subtype check macro node" ) \"if > 0, convert int counted loops to long counted loops" \"to stress handling of long counted loops: run inner loop" \"for at most jint_max / StressLongCountedLoop" ) \bool , DuplicateBackedge, true , DIAGNOSTIC, \"Transform loop with a merge point into 2 loops if inner loop is" \"expected to optimize better" ) \bool , StressDuplicateBackedge, false , \"Run DuplicateBackedge whenever possible ignoring benefit" \"analysis" ) \bool , VerifyReceiverTypes, trueInDebug, DIAGNOSTIC, \"Verify receiver types at runtime" ) \// end of C2_FLAGS #endif // SHARE_OPTO_C2_GLOBALS_HPP
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