Mercurial > hg > icedtea8-forest > hotspot
view src/share/vm/opto/c2_globals.hpp @ 10905:f57189b7648d
8257192: Integrate AArch64 JIT port into 8u
7009641: Don't fail VM when CodeCache is full
8073108: [AArch64] Use x86 and SPARC CPU instructions for GHASH acceleration
8130309: Need to bailout cleanly if creation of stubs fails when codecache is out of space (AArch64 changes)
8131779: AARCH64: add Montgomery multiply intrinsic
8132875: AArch64: Fix error introduced into AArch64 CodeCache by commit for 8130309
8135018: AARCH64: Missing memory barriers for CMS collector
8145320: Create unsafe_arraycopy and generic_arraycopy for AArch64
8148328: aarch64: redundant lsr instructions in stub code.
8148783: aarch64: SEGV running SpecJBB2013
8148948: aarch64: generate_copy_longs calls align() incorrectly
8149080: AArch64: Recognise disjoint array copy in stub code
8149365: aarch64: memory copy does not prefetch on backwards copy
8149907: aarch64: use load/store pair instructions in call_stub
8150038: aarch64: make use of CBZ and CBNZ when comparing narrow pointer with zero
8150045: arraycopy causes segfaults in SATB during garbage collection
8150082: aarch64: optimise small array copy
8150229: aarch64: pipeline class for several instructions is not set correctly
8150313: aarch64: optimise array copy using SIMD instructions
8150394: aarch64: add support for 8.1 LSE CAS instructions
8150652: Remove unused code in AArch64 back end
8151340: aarch64: prefetch the destination word for write prior to ldxr/stxr loops.
8151502: optimize pd_disjoint_words and pd_conjoint_words
8151775: aarch64: add support for 8.1 LSE atomic operations
8152537: aarch64: Make use of CBZ and CBNZ when comparing unsigned values with zero.
8152840: aarch64: improve _unsafe_arraycopy stub routine
8153172: aarch64: hotspot crashes after the 8.1 LSE patch is merged
8153713: aarch64: improve short array clearing using store pair
8153797: aarch64: Add Arrays.fill stub code
8154413: AArch64: Better byte behaviour
8154537: AArch64: some integer rotate instructions are never emitted
8154739: AArch64: TemplateTable::fast_xaccess loads in wrong mode
8155015: Aarch64: bad assert in spill generation code
8155100: AArch64: Relax alignment requirement for byte_map_base
8155612: Aarch64: vector nodes need to support misaligned offset
8155617: aarch64: ClearArray does not use DC ZVA
8155627: Enable SA on AArch64
8155653: TestVectorUnalignedOffset.java not pushed with 8155612
8156731: aarch64: java/util/Arrays/Correct.java fails due to _generic_arraycopy stub routine
8157841: aarch64: prefetch ignores cache line size
8157906: aarch64: some more integer rotate instructions are never emitted
8158913: aarch64: SEGV running Spark terasort
8159052: aarch64: optimise unaligned copies in pd_disjoint_words and pd_conjoint_words
8159063: aarch64: optimise unaligned array copy long
8160748: [AArch64] Inconsistent types for ideal_reg
8161072: AArch64: jtreg compiler/uncommontrap/TestDeoptOOM failure
8161190: AArch64: Fix overflow in immediate cmp instruction
8164113: AArch64: follow-up the fix for 8161598
8165673: AArch64: Fix JNI floating point argument handling
8167200: AArch64: Broken stack pointer adjustment in interpreter
8167421: AArch64: in one core system, fatal error: Illegal threadstate encountered
8167595: AArch64: SEGV in stub code cipherBlockChaining_decryptAESCrypt
8168699: Validate special case invocations [AArch64 support]
8168888: Port 8160591: Improve internal array handling to AArch64.
8170100: AArch64: Crash in C1-compiled code accessing References
8170188: jtreg test compiler/types/TestMeetIncompatibleInterfaceArrays.java causes JVM crash
8170873: PPC64/aarch64: Poor StrictMath performance due to non-optimized compilation
8171537: aarch64: compiler/c1/Test6849574.java generates guarantee failure in C1
8172881: AArch64: assertion failure: the int pressure is incorrect
8173472: AArch64: C1 comparisons with null only use 32-bit instructions
8176100: [AArch64] [REDO][REDO] G1 Needs pre barrier on dereference of weak JNI handles
8177661: Correct ad rule output register types from iRegX to iRegXNoSp
8179954: AArch64: C1 and C2 volatile accesses are not sequentially consistent
8182581: aarch64: fix for crash caused by earlyret of compiled method
8183925: [AArch64] Decouple crash protection from watcher thread
8186325: AArch64: jtreg test hotspot/test/gc/g1/TestJNIWeakG1/TestJNIWeakG1.java SEGV
8187224: aarch64: some inconsistency between aarch64_ad.m4 and aarch64.ad
8189170: [AArch64] Add option to disable stack overflow checking in primordial thread for use with JNI_CreateJavaJVM
8193133: Assertion failure because 0xDEADDEAD can be in-heap
8195685: AArch64 port of 8174962: Better interface invocations
8195859: AArch64: vtableStubs gtest fails after 8174962
8196136: AArch64: Correct register use in patch for JDK-8194686
8196221: AArch64: Mistake in committed patch for JDK-8195859
8199712: [AArch64] Flight Recorder
8203481: Incorrect constraint for unextended_sp in frame:safe_for_sender
8203699: java/lang/invoke/SpecialInterfaceCall fails with SIGILL on aarch64
8205421: AARCH64: StubCodeMark should be placed after alignment
8206163: AArch64: incorrect code generation for StoreCM
8207345: Trampoline generation code reads from uninitialized memory
8207838: AArch64: Float registers incorrectly restored in JNI call
8209413: AArch64: NPE in clhsdb jstack command
8209414: [AArch64] method handle invocation does not respect JVMTI interp_only mode
8209415: Fix JVMTI test failure HS202
8209420: Track membars for volatile accesses so they can be properly optimized
8209835: Aarch64: elide barriers on all volatile operations
8210425: [AArch64] sharedRuntimeTrig/sharedRuntimeTrans compiled without optimization
8211064: [AArch64] Interpreter and c1 don't correctly handle jboolean results in native calls
8211233: MemBarNode::trailing_membar() and MemBarNode::leading_membar() need to handle dying subgraphs better
8213134: AArch64: vector shift failed with MaxVectorSize=8
8213419: [AArch64] C2 may hang in MulLNode::Ideal()/MulINode::Ideal() with gcc 8.2.1
8214857: "bad trailing membar" assert failure at memnode.cpp:3220
8215951: AArch64: jtreg test vmTestbase/nsk/jvmti/PopFrame/popframe005 segfaults
8215961: jdk/jfr/event/os/TestCPUInformation.java fails on AArch64
8216350: AArch64: monitor unlock fast path not called
8216989: CardTableBarrierSetAssembler::gen_write_ref_array_post_barrier() does not check for zero length on AARCH64
8217368: AArch64: C2 recursive stack locking optimisation not triggered
8218185: aarch64: missing LoadStore barrier in TemplateTable::putfield_or_static
8219011: Implement MacroAssembler::warn method on AArch64
8219635: aarch64: missing LoadStore barrier in TemplateTable::fast_storefield
8221220: AArch64: Add StoreStore membar explicitly for Volatile Writes in TemplateTable
8221658: aarch64: add necessary predicate for ubfx patterns
8224671: AArch64: mauve System.arraycopy test failure
8224828: aarch64: rflags is not correct after safepoint poll
8224851: AArch64: fix warnings and errors with Clang and GCC 8.3
8224880: AArch64: java/javac error with AllocatePrefetchDistance
8228400: Remove built-in AArch64 simulator
8228406: Superfluous change in chaitin.hpp
8228593: Revert explicit JDK 7 support additions
8228716: Revert InstanceKlass::print_on debug additions
8228718: Revert incorrect backport of JDK-8129757 to 8-aarch64
8228725: AArch64: Purge method call format support
8228747: Revert "unused" attribute from test_arraycopy_func
8228767: Revert ResourceMark additions
8228770: Revert development hsdis changes
8229123: Revert build fixes for aarch64/zero
8229124: Revert disassembler.cpp changes
8229145: Revert TemplateTable::bytecode() visibility change
8233839: aarch64: missing memory barrier in NewObjectArrayStub and NewTypeArrayStub
8237512: AArch64: aarch64TestHook leaks a BufferBlob
8246482: Build failures with +JFR -PCH
8247979: aarch64: missing side effect of killing flags for clearArray_reg_reg
8248219: aarch64: missing memory barrier in fast_storefield and fast_accessfield
Reviewed-by: shade, aph
| author | andrew |
|---|---|
| date | Mon, 01 Feb 2021 03:48:36 +0000 |
| parents | e5c6b19dd8fc |
| children | f79e943d15a7 |
line wrap: on
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/* * Copyright (c) 2000, 2013, 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_VM_OPTO_C2_GLOBALS_HPP #define SHARE_VM_OPTO_C2_GLOBALS_HPP #include "runtime/globals.hpp" #ifdef TARGET_ARCH_x86 # include "c2_globals_x86.hpp" #endif #ifdef TARGET_ARCH_aarch64 # include "c2_globals_aarch64.hpp" #endif #ifdef TARGET_ARCH_sparc # include "c2_globals_sparc.hpp" #endif #ifdef TARGET_ARCH_arm # include "c2_globals_arm.hpp" #endif #ifdef TARGET_ARCH_ppc # include "c2_globals_ppc.hpp" #endif #ifdef TARGET_OS_FAMILY_linux # include "c2_globals_linux.hpp" #endif #ifdef TARGET_OS_FAMILY_solaris # include "c2_globals_solaris.hpp" #endif #ifdef TARGET_OS_FAMILY_windows # include "c2_globals_windows.hpp" #endif #ifdef TARGET_OS_FAMILY_aix # include "c2_globals_aix.hpp" #endif #ifdef TARGET_OS_FAMILY_bsd # include "c2_globals_bsd.hpp" #endif // // Defines all globals flags used by the server compiler. // #define C2_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct) \ \ diagnostic(bool, StressLCM, false, \ "Randomize instruction scheduling in LCM") \ \ diagnostic(bool, StressGCM, false, \ "Randomize instruction scheduling in GCM") \ \ notproduct(intx, CompileZapFirst, 0, \ "If +ZapDeadCompiledLocals, " \ "skip this many before compiling in zap calls") \ \ notproduct(intx, CompileZapLast, -1, \ "If +ZapDeadCompiledLocals, " \ "compile this many after skipping (incl. skip count, -1 = all)") \ \ notproduct(intx, ZapDeadCompiledLocalsFirst, 0, \ "If +ZapDeadCompiledLocals, " \ "skip this many before really doing it") \ \ notproduct(intx, ZapDeadCompiledLocalsLast, -1, \ "If +ZapDeadCompiledLocals, " \ "do this many after skipping (incl. skip count, -1 = all)") \ \ develop(intx, OptoPrologueNops, 0, \ "Insert this many extra nop instructions " \ "in the prologue of every nmethod") \ \ product_pd(intx, InteriorEntryAlignment, \ "Code alignment for interior entry points " \ "in generated code (in bytes)") \ \ product(intx, MaxLoopPad, (OptoLoopAlignment-1), \ "Align a loop if padding size in bytes is less or equal to this value") \ \ product(intx, MaxVectorSize, 32, \ "Max vector size in bytes, " \ "actual size could be less depending on elements type") \ \ product(bool, AlignVector, true, \ "Perform vector store/load alignment in loop") \ \ product(intx, NumberOfLoopInstrToAlign, 4, \ "Number of first instructions in a loop to align") \ \ notproduct(intx, IndexSetWatch, 0, \ "Trace all operations on this IndexSet (-1 means all, 0 none)") \ \ develop(intx, OptoNodeListSize, 4, \ "Starting allocation size of Node_List data structures") \ \ develop(intx, OptoBlockListSize, 8, \ "Starting allocation size of Block_List data structures") \ \ develop(intx, OptoPeepholeAt, -1, \ "Apply peephole optimizations to this peephole rule") \ \ notproduct(bool, PrintIdeal, false, \ "Print ideal graph before code generation") \ \ notproduct(bool, PrintOpto, false, \ "Print compiler2 attempts") \ \ notproduct(bool, PrintOptoInlining, false, \ "Print compiler2 inlining decisions") \ \ notproduct(bool, VerifyOpto, false, \ "Apply more time consuming verification during compilation") \ \ notproduct(bool, VerifyIdealNodeCount, false, \ "Verify that tracked dead ideal node count is accurate") \ \ notproduct(bool, PrintIdealNodeCount, false, \ "Print liveness counts of ideal nodes") \ \ notproduct(bool, VerifyOptoOopOffsets, false, \ "Check types of base addresses in field references") \ \ develop(bool, IdealizedNumerics, false, \ "Check performance difference allowing FP " \ "associativity and commutativity...") \ \ develop(bool, OptoBreakpoint, false, \ "insert breakpoint at method entry") \ \ notproduct(bool, OptoBreakpointOSR, false, \ "insert breakpoint at osr method entry") \ \ notproduct(intx, BreakAtNode, 0, \ "Break at construction of this Node (either _idx or _debug_idx)") \ \ notproduct(bool, OptoBreakpointC2R, false, \ "insert breakpoint at runtime stub entry") \ \ notproduct(bool, OptoNoExecute, false, \ "Attempt to parse and compile but do not execute generated code") \ \ notproduct(bool, PrintOptoStatistics, false, \ "Print New compiler statistics") \ \ notproduct(bool, PrintOptoAssembly, false, \ "Print New compiler assembly output") \ \ develop_pd(bool, OptoPeephole, \ "Apply peephole optimizations after register allocation") \ \ develop(bool, OptoRemoveUseless, true, \ "Remove useless nodes after parsing") \ \ notproduct(bool, PrintFrameConverterAssembly, false, \ "Print New compiler assembly output for frame converters") \ \ notproduct(bool, PrintParseStatistics, false, \ "Print nodes, transforms and new values made per bytecode parsed")\ \ notproduct(bool, PrintOptoPeephole, false, \ "Print New compiler peephole replacements") \ \ develop(bool, PrintCFGBlockFreq, false, \ "Print CFG block freqencies") \ \ develop(bool, TraceOptoParse, false, \ "Trace bytecode parse and control-flow merge") \ \ product_pd(intx, LoopUnrollLimit, \ "Unroll loop bodies with node count less than this") \ \ product(intx, LoopMaxUnroll, 16, \ "Maximum number of unrolls for main loop") \ \ product(intx, LoopUnrollMin, 4, \ "Minimum number of unroll loop bodies before checking progress" \ "of rounds of unroll,optimize,..") \ \ develop(intx, UnrollLimitForProfileCheck, 1, \ "Don't use profile_trip_cnt() to restrict unrolling until " \ "unrolling would push the number of unrolled iterations above " \ "UnrollLimitForProfileCheck. A higher value allows more " \ "unrolling. Zero acts as a very large value." ) \ \ product(intx, MultiArrayExpandLimit, 6, \ "Maximum number of individual allocations in an inline-expanded " \ "multianewarray instruction") \ \ notproduct(bool, TraceProfileTripCount, false, \ "Trace profile loop trip count information") \ \ product(bool, UseCountedLoopSafepoints, false, \ "Force counted loops to keep a safepoint") \ \ product(bool, UseLoopPredicate, true, \ "Generate a predicate to select fast/slow loop versions") \ \ develop(bool, TraceLoopPredicate, false, \ "Trace generation of loop predicates") \ \ develop(bool, TraceLoopOpts, false, \ "Trace executed loop optimizations") \ \ diagnostic(bool, LoopLimitCheck, true, \ "Generate a loop limits check for overflow") \ \ develop(bool, TraceLoopLimitCheck, false, \ "Trace generation of loop limits checks") \ \ diagnostic(bool, RangeLimitCheck, true, \ "Additional overflow checks during range check elimination") \ \ develop(bool, TraceRangeLimitCheck, false, \ "Trace additional overflow checks in RCE") \ \ diagnostic(bool, UnrollLimitCheck, true, \ "Additional overflow checks during loop unroll") \ \ /* OptimizeFill not yet supported on PowerPC. */ \ product(bool, OptimizeFill, true PPC64_ONLY(&& false), \ "convert fill/copy loops into intrinsic") \ \ develop(bool, TraceOptimizeFill, false, \ "print detailed information about fill conversion") \ \ develop(bool, OptoCoalesce, true, \ "Use Conservative Copy Coalescing in the Register Allocator") \ \ develop(bool, UseUniqueSubclasses, true, \ "Narrow an abstract reference to the unique concrete subclass") \ \ develop(bool, UseExactTypes, true, \ "Use exact types to eliminate array store checks and v-calls") \ \ product(intx, TrackedInitializationLimit, 50, \ "When initializing fields, track up to this many words") \ \ product(bool, ReduceFieldZeroing, true, \ "When initializing fields, try to avoid needless zeroing") \ \ product(bool, ReduceInitialCardMarks, true, \ "When initializing fields, try to avoid needless card marks") \ \ product(bool, ReduceBulkZeroing, true, \ "When bulk-initializing, try to avoid needless zeroing") \ \ product(bool, UseFPUForSpilling, false, \ "Spill integer registers to FPU instead of stack when possible") \ \ develop_pd(intx, RegisterCostAreaRatio, \ "Spill selection in reg allocator: scale area by (X/64K) before " \ "adding cost") \ \ develop_pd(bool, UseCISCSpill, \ "Use ADLC supplied cisc instructions during allocation") \ \ notproduct(bool, VerifyGraphEdges , false, \ "Verify Bi-directional Edges") \ \ notproduct(bool, VerifyDUIterators, true, \ "Verify the safety of all iterations of Bi-directional Edges") \ \ notproduct(bool, VerifyHashTableKeys, true, \ "Verify the immutability of keys in the VN hash tables") \ \ notproduct(bool, VerifyRegisterAllocator , false, \ "Verify Register Allocator") \ \ develop_pd(intx, FLOATPRESSURE, \ "Number of float LRG's that constitute high register pressure") \ \ develop_pd(intx, INTPRESSURE, \ "Number of integer LRG's that constitute high register pressure") \ \ notproduct(bool, TraceOptoPipelining, false, \ "Trace pipelining information") \ \ notproduct(bool, TraceOptoOutput, false, \ "Trace pipelining information") \ \ product_pd(bool, OptoScheduling, \ "Instruction Scheduling after register allocation") \ \ product(bool, PartialPeelLoop, true, \ "Partial peel (rotate) loops") \ \ product(intx, PartialPeelNewPhiDelta, 0, \ "Additional phis that can be created by partial peeling") \ \ notproduct(bool, TracePartialPeeling, false, \ "Trace partial peeling (loop rotation) information") \ \ product(bool, PartialPeelAtUnsignedTests, true, \ "Partial peel at unsigned tests if no signed test exists") \ \ product(bool, ReassociateInvariants, true, \ "Enable reassociation of expressions with loop invariants.") \ \ product(bool, LoopUnswitching, true, \ "Enable loop unswitching (a form of invariant test hoisting)") \ \ notproduct(bool, TraceLoopUnswitching, false, \ "Trace loop unswitching") \ \ product(bool, UseSuperWord, true, \ "Transform scalar operations into superword operations") \ \ develop(bool, SuperWordRTDepCheck, false, \ "Enable runtime dependency checks.") \ \ notproduct(bool, TraceSuperWord, false, \ "Trace superword transforms") \ \ notproduct(bool, TraceNewVectors, false, \ "Trace creation of Vector nodes") \ \ product_pd(bool, OptoBundling, \ "Generate nops to fill i-cache lines") \ \ product_pd(intx, ConditionalMoveLimit, \ "Limit of ops to make speculative when using CMOVE") \ \ /* Set BranchOnRegister == false. See 4965987. */ \ product(bool, BranchOnRegister, false, \ "Use Sparc V9 branch-on-register opcodes") \ \ develop(bool, SparcV9RegsHiBitsZero, true, \ "Assume Sparc V9 I&L registers on V8+ systems are zero-extended") \ \ product(bool, UseRDPCForConstantTableBase, false, \ "Use Sparc RDPC instruction for the constant table base.") \ \ develop(intx, PrintIdealGraphLevel, 0, \ "Print ideal graph to XML file / network interface. " \ "By default attempts to connect to the visualizer on a socket.") \ \ develop(intx, PrintIdealGraphPort, 4444, \ "Ideal graph printer to network port") \ \ notproduct(ccstr, PrintIdealGraphAddress, "127.0.0.1", \ "IP address to connect to visualizer") \ \ notproduct(ccstr, PrintIdealGraphFile, NULL, \ "File to dump ideal graph to. If set overrides the " \ "use of the network") \ \ product(bool, UseBimorphicInlining, true, \ "Profiling based inlining for two receivers") \ \ product(bool, UseOnlyInlinedBimorphic, true, \ "Don't use BimorphicInlining if can't inline a second method") \ \ product(bool, InsertMemBarAfterArraycopy, true, \ "Insert memory barrier after arraycopy call") \ \ develop(bool, SubsumeLoads, true, \ "Attempt to compile while subsuming loads into machine instructions.") \ \ develop(bool, StressRecompilation, false, \ "Recompile each compiled method without subsuming loads or escape analysis.") \ \ develop(intx, ImplicitNullCheckThreshold, 3, \ "Don't do implicit null checks if NPE's in a method exceeds limit") \ \ product(intx, LoopOptsCount, 43, \ "Set level of loop optimization for tier 1 compiles") \ \ /* controls for heat-based inlining */ \ \ develop(intx, NodeCountInliningCutoff, 18000, \ "If parser node generation exceeds limit stop inlining") \ \ develop(intx, NodeCountInliningStep, 1000, \ "Target size of warm calls inlined between optimization passes") \ \ develop(bool, InlineWarmCalls, false, \ "Use a heat-based priority queue to govern inlining") \ \ develop(intx, HotCallCountThreshold, 999999, \ "large numbers of calls (per method invocation) force hotness") \ \ develop(intx, HotCallProfitThreshold, 999999, \ "highly profitable inlining opportunities force hotness") \ \ develop(intx, HotCallTrivialWork, -1, \ "trivial execution time (no larger than this) forces hotness") \ \ develop(intx, HotCallTrivialSize, -1, \ "trivial methods (no larger than this) force calls to be hot") \ \ develop(intx, WarmCallMinCount, -1, \ "number of calls (per method invocation) to enable inlining") \ \ develop(intx, WarmCallMinProfit, -1, \ "number of calls (per method invocation) to enable inlining") \ \ develop(intx, WarmCallMaxWork, 999999, \ "execution time of the largest inlinable method") \ \ develop(intx, WarmCallMaxSize, 999999, \ "size of the largest inlinable method") \ \ product(intx, MaxNodeLimit, 80000, \ "Maximum number of nodes") \ \ product(intx, NodeLimitFudgeFactor, 2000, \ "Fudge Factor for certain optimizations") \ \ product(bool, UseJumpTables, true, \ "Use JumpTables instead of a binary search tree for switches") \ \ product(bool, UseDivMod, true, \ "Use combined DivMod instruction if available") \ \ product_pd(intx, MinJumpTableSize, \ "Minimum number of targets in a generated jump table") \ \ product(intx, MaxJumpTableSize, 65000, \ "Maximum number of targets in a generated jump table") \ \ product(intx, MaxJumpTableSparseness, 5, \ "Maximum sparseness for jumptables") \ \ product(bool, EliminateLocks, true, \ "Coarsen locks when possible") \ \ product(bool, EliminateNestedLocks, true, \ "Eliminate nested locks of the same object when possible") \ \ notproduct(bool, PrintLockStatistics, false, \ "Print precise statistics on the dynamic lock usage") \ \ diagnostic(bool, PrintPreciseBiasedLockingStatistics, false, \ "Print per-lock-site statistics of biased locking in JVM") \ \ diagnostic(bool, PrintPreciseRTMLockingStatistics, false, \ "Print per-lock-site statistics of rtm locking in JVM") \ \ notproduct(bool, PrintEliminateLocks, false, \ "Print out when locks are eliminated") \ \ product(bool, EliminateAutoBox, true, \ "Control optimizations for autobox elimination") \ \ diagnostic(bool, UseImplicitStableValues, true, \ "Mark well-known stable fields as such (e.g. String.value)") \ \ product(intx, AutoBoxCacheMax, 128, \ "Sets max value cached by the java.lang.Integer autobox cache") \ \ experimental(bool, AggressiveUnboxing, false, \ "Control optimizations for aggressive boxing elimination") \ \ develop(bool, TracePostallocExpand, false, "Trace expanding nodes after" \ " register allocation.") \ \ product(bool, DoEscapeAnalysis, true, \ "Perform escape analysis") \ \ product(double, EscapeAnalysisTimeout, 20. DEBUG_ONLY(+40.), \ "Abort EA when it reaches time limit (in sec)") \ \ develop(bool, ExitEscapeAnalysisOnTimeout, true, \ "Exit or throw assert in EA when it reaches time limit") \ \ notproduct(bool, PrintEscapeAnalysis, false, \ "Print the results of escape analysis") \ \ product(bool, EliminateAllocations, true, \ "Use escape analysis to eliminate allocations") \ \ notproduct(bool, PrintEliminateAllocations, false, \ "Print out when allocations are eliminated") \ \ product(intx, EliminateAllocationArraySizeLimit, 64, \ "Array size (number of elements) limit for scalar replacement") \ \ product(bool, OptimizePtrCompare, true, \ "Use escape analysis to optimize pointers compare") \ \ notproduct(bool, PrintOptimizePtrCompare, false, \ "Print information about optimized pointers compare") \ \ notproduct(bool, VerifyConnectionGraph , true, \ "Verify Connection Graph construction in Escape Analysis") \ \ product(bool, UseOptoBiasInlining, true, \ "Generate biased locking code in C2 ideal graph") \ \ product(bool, OptimizeStringConcat, true, \ "Optimize the construction of Strings by StringBuilder") \ \ notproduct(bool, PrintOptimizeStringConcat, false, \ "Print information about transformations performed on Strings") \ \ product(intx, ValueSearchLimit, 1000, \ "Recursion limit in PhaseMacroExpand::value_from_mem_phi") \ \ product(intx, MaxLabelRootDepth, 1100, \ "Maximum times call Label_Root to prevent stack overflow") \ \ diagnostic(intx, DominatorSearchLimit, 1000, \ "Iterations limit in Node::dominates") \ \ product(bool, BlockLayoutByFrequency, true, \ "Use edge frequencies to drive block ordering") \ \ product(intx, BlockLayoutMinDiamondPercentage, 20, \ "Miniumum %% of a successor (predecessor) for which block layout "\ "a will allow a fork (join) in a single chain") \ \ product(bool, BlockLayoutRotateLoops, true, \ "Allow back branches to be fall throughs in the block layour") \ \ develop(bool, InlineReflectionGetCallerClass, true, \ "inline sun.reflect.Reflection.getCallerClass(), known to be part "\ "of base library DLL") \ \ develop(bool, InlineObjectCopy, true, \ "inline Object.clone and Arrays.copyOf[Range] intrinsics") \ \ develop(bool, SpecialStringCompareTo, true, \ "special version of string compareTo") \ \ develop(bool, SpecialStringIndexOf, true, \ "special version of string indexOf") \ \ develop(bool, SpecialStringEquals, true, \ "special version of string equals") \ \ develop(bool, SpecialArraysEquals, true, \ "special version of Arrays.equals(char[],char[])") \ \ product(bool, SpecialEncodeISOArray, true, \ "special version of ISO_8859_1$Encoder.encodeISOArray") \ \ develop(bool, BailoutToInterpreterForThrows, false, \ "Compiled methods which throws/catches exceptions will be " \ "deopt and intp.") \ \ develop(bool, ConvertCmpD2CmpF, true, \ "Convert cmpD to cmpF when one input is constant in float range") \ \ develop(bool, ConvertFloat2IntClipping, true, \ "Convert float2int clipping idiom to integer clipping") \ \ develop(bool, Use24BitFPMode, true, \ "Set 24-bit FPU mode on a per-compile basis ") \ \ develop(bool, Use24BitFP, true, \ "use FP instructions that produce 24-bit precise results") \ \ develop(bool, MonomorphicArrayCheck, true, \ "Uncommon-trap array store checks that require full type check") \ \ notproduct(bool, TracePhaseCCP, false, \ "Print progress during Conditional Constant Propagation") \ \ develop(bool, PrintDominators, false, \ "Print out dominator trees for GVN") \ \ notproduct(bool, TraceSpilling, false, \ "Trace spilling") \ \ diagnostic(bool, TraceTypeProfile, false, \ "Trace type profile") \ \ develop(bool, PoisonOSREntry, true, \ "Detect abnormal calls to OSR code") \ \ product(bool, UseCondCardMark, false, \ "Check for already marked card before updating card table") \ \ develop(bool, SoftMatchFailure, trueInProduct, \ "If the DFA fails to match a node, print a message and bail out") \ \ develop(bool, InlineAccessors, true, \ "inline accessor methods (get/set)") \ \ product(intx, TypeProfileMajorReceiverPercent, 90, \ "% of major receiver type to all profiled receivers") \ \ notproduct(bool, TimeCompiler2, false, \ "detailed time the compiler (requires +TimeCompiler)") \ \ diagnostic(bool, PrintIntrinsics, false, \ "prints attempted and successful inlining of intrinsics") \ \ diagnostic(ccstrlist, DisableIntrinsic, "", \ "do not expand intrinsics whose (internal) names appear here") \ \ develop(bool, StressReflectiveCode, false, \ "Use inexact types at allocations, etc., to test reflection") \ \ diagnostic(bool, DebugInlinedCalls, true, \ "If false, restricts profiled locations to the root method only") \ \ notproduct(bool, VerifyLoopOptimizations, false, \ "verify major loop optimizations") \ \ diagnostic(bool, ProfileDynamicTypes, true, \ "do extra type profiling and use it more aggressively") \ \ develop(bool, TraceIterativeGVN, false, \ "Print progress during Iterative Global Value Numbering") \ \ develop(bool, VerifyIterativeGVN, false, \ "Verify Def-Use modifications during sparse Iterative Global " \ "Value Numbering") \ \ notproduct(bool, TraceCISCSpill, false, \ "Trace allocators use of cisc spillable instructions") \ \ product(bool, SplitIfBlocks, true, \ "Clone compares and control flow through merge points to fold " \ "some branches") \ \ develop(intx, FreqCountInvocations, 1, \ "Scaling factor for branch frequencies (deprecated)") \ \ product(intx, AliasLevel, 3, \ "0 for no aliasing, 1 for oop/field/static/array split, " \ "2 for class split, 3 for unique instances") \ \ develop(bool, VerifyAliases, false, \ "perform extra checks on the results of alias analysis") \ \ product(bool, IncrementalInline, true, \ "do post parse inlining") \ \ develop(bool, AlwaysIncrementalInline, false, \ "do all inlining incrementally") \ \ product(intx, LiveNodeCountInliningCutoff, 40000, \ "max number of live nodes in a method") \ \ diagnostic(bool, OptimizeExpensiveOps, true, \ "Find best control for expensive operations") \ \ product(bool, UseMathExactIntrinsics, true, \ "Enables intrinsification of various java.lang.Math functions") \ \ product(bool, UseMultiplyToLenIntrinsic, false, \ "Enables intrinsification of BigInteger.multiplyToLen()") \ \ product(bool, UseSquareToLenIntrinsic, false, \ "Enables intrinsification of BigInteger.squareToLen()") \ \ product(bool, UseMulAddIntrinsic, false, \ "Enables intrinsification of BigInteger.mulAdd()") \ \ product(bool, UseMontgomeryMultiplyIntrinsic, false, \ "Enables intrinsification of BigInteger.montgomeryMultiply()") \ \ product(bool, UseMontgomerySquareIntrinsic, false, \ "Enables intrinsification of BigInteger.montgomerySquare()") \ \ product(bool, UseTypeSpeculation, true, \ "Speculatively propagate types from profiles") \ \ diagnostic(bool, UseInlineDepthForSpeculativeTypes, true, \ "Carry inline depth of profile point with speculative type " \ "and give priority to profiling from lower inline depth") \ \ product_pd(bool, TrapBasedRangeChecks, \ "Generate code for range checks that uses a cmp and trap " \ "instruction raising SIGTRAP. Used on PPC64.") \ \ develop(bool, RenumberLiveNodes, true, \ "Renumber live nodes") \ C2_FLAGS(DECLARE_DEVELOPER_FLAG, DECLARE_PD_DEVELOPER_FLAG, DECLARE_PRODUCT_FLAG, DECLARE_PD_PRODUCT_FLAG, DECLARE_DIAGNOSTIC_FLAG, DECLARE_EXPERIMENTAL_FLAG, DECLARE_NOTPRODUCT_FLAG) #endif // SHARE_VM_OPTO_C2_GLOBALS_HPP