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jdk-24/hotspot/src/share/vm/opto/c2_globals.hpp

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/*
8014959: assert(Compile::current()->live_nodes() < (uint)MaxNodeLimit) failed: Live Node limit exceeded limit Insert extra checks and bailouts for too many nodes Reviewed-by: kvn
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* Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
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* 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.
*
6941466: Oracle rebranding changes for Hotspot repositories Change all the Sun copyrights to Oracle copyright Reviewed-by: ohair
2010-05-27 19:08:38 -07:00
* 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.
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*
*/
6989984: Use standard include model for Hospot Replaced MakeDeps and the includeDB files with more standardized solutions. Reviewed-by: coleenp, kvn, kamg
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#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_sparc
# include "c2_globals_sparc.hpp"
#endif
7016023: Enable building ARM and PPC from src/closed repository Reviewed-by: dholmes, bdelsart
2011-02-02 11:35:26 -05:00
#ifdef TARGET_ARCH_arm
# include "c2_globals_arm.hpp"
#endif
6989984: Use standard include model for Hospot Replaced MakeDeps and the includeDB files with more standardized solutions. Reviewed-by: coleenp, kvn, kamg
2010-11-23 13:22:55 -08:00
#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
7089790: integrate bsd-port changes Co-authored-by: Greg Lewis <glewis@eyesbeyond.com> Co-authored-by: Jung-uk Kim <jkim@freebsd.org> Co-authored-by: Christos Zoulas <christos@zoulas.com> Co-authored-by: Landon Fuller <landonf@plausible.coop> Co-authored-by: The FreeBSD Foundation <board@freebsdfoundation.org> Co-authored-by: Michael Franz <mvfranz@gmail.com> Co-authored-by: Roger Hoover <rhoover@apple.com> Co-authored-by: Alexander Strange <astrange@apple.com> Reviewed-by: kvn, twisti, jrose
2011-09-25 16:03:29 -07:00
#ifdef TARGET_OS_FAMILY_bsd
# include "c2_globals_bsd.hpp"
#endif
6989984: Use standard include model for Hospot Replaced MakeDeps and the includeDB files with more standardized solutions. Reviewed-by: coleenp, kvn, kamg
2010-11-23 13:22:55 -08:00
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//
// Defines all globals flags used by the server compiler.
//
6892658: C2 should optimize some stringbuilder patterns Reviewed-by: kvn, twisti
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#define C2_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct) \
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\
8009120: Fuzz instruction scheduling in HotSpot compilers Reviewed-by: kvn, vlivanov
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develop(bool, StressLCM, false, \
"Randomize instruction scheduling in LCM") \
\
develop(bool, StressGCM, false, \
"Randomize instruction scheduling in GCM") \
\
Initial load
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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") \
\
7119644: Increase superword's vector size up to 256 bits Increase vector size up to 256-bits for YMM AVX registers on x86. Reviewed-by: never, twisti, roland
2012-06-15 01:25:19 -07:00
product(intx, MaxVectorSize, 32, \
"Max vector size in bytes, " \
"actual size could be less depending on elements type") \
\
7199010: incorrect vector alignment Fixed vectors alignment when several arrays are accessed in one loop. Reviewed-by: roland, twisti
2012-09-19 16:50:26 -07:00
product(bool, AlignVector, true, \
7119644: Increase superword's vector size up to 256 bits Increase vector size up to 256-bits for YMM AVX registers on x86. Reviewed-by: never, twisti, roland
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"Perform vector store/load alignment in loop") \
\
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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") \
\
7092905: C2: Keep track of the number of dead nodes Keep an (almost) accurate running count of the reachable (live) flow graph nodes. Reviewed-by: kvn, twisti, jrose, vlivanov
2012-11-27 17:24:15 -08:00
notproduct(bool, VerifyIdealNodeCount, false, \
"Verify that tracked dead ideal node count is accurate") \
\
notproduct(bool, PrintIdealNodeCount, false, \
"Print liveness counts of ideal nodes") \
\
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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, 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") \
\
6894779: Loop Predication for Loop Optimizer in C2 Loop predication implementation Reviewed-by: never, kvn
2010-01-12 14:37:35 -08:00
product(bool, UseLoopPredicate, true, \
"Generate a predicate to select fast/slow loop versions") \
\
develop(bool, TraceLoopPredicate, false, \
"Trace generation of loop predicates") \
\
7008866: Missing loop predicate for loop with multiple entries Add predicates when loop head bytecode is parsed instead of when back branch bytecode is parsed. Reviewed-by: never
2011-03-21 11:28:14 -07:00
develop(bool, TraceLoopOpts, false, \
"Trace executed loop optimizations") \
\
5091921: Sign flip issues in loop optimizer Fix integer overflow problem in the code generated by loop optimizer. Reviewed-by: never
2011-05-04 13:12:42 -07:00
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") \
\
7103784: enable some flags by default Reviewed-by: kvn
2011-10-23 20:23:14 -07:00
product(bool, OptimizeFill, true, \
4809552: Optimize Arrays.fill(...) Reviewed-by: kvn
2010-08-27 17:33:49 -07:00
"convert fill/copy loops into intrinsic") \
\
develop(bool, TraceOptimizeFill, false, \
"print detailed information about fill conversion") \
\
Initial load
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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") \
\
6978249: spill between cpu and fpu registers when those moves are fast Reviewed-by: kvn
2010-08-19 14:51:47 -07:00
product(bool, UseFPUForSpilling, false, \
"Spill integer registers to FPU instead of stack when possible") \
\
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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") \
\
6782232: assert("CreateEx must be first instruction in block" ) Add the missing check for CreateEx. Add new notproduct flag VerifyRegisterAllocator. Reviewed-by: never
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notproduct(bool, VerifyRegisterAllocator , false, \
"Verify Register Allocator") \
\
Initial load
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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.") \
\
7177923: SIGBUS on sparc in compiled code for java.util.Calendar.clear() Disable vectorization of a memory access with more elements per vector than one which is used for alignment on sparc Reviewed-by: twisti
2012-06-19 15:12:56 -07:00
notproduct(bool, TraceSuperWord, false, \
Initial load
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"Trace superword transforms") \
\
7177923: SIGBUS on sparc in compiled code for java.util.Calendar.clear() Disable vectorization of a memory access with more elements per vector than one which is used for alignment on sparc Reviewed-by: twisti
2012-06-19 15:12:56 -07:00
notproduct(bool, TraceNewVectors, false, \
"Trace creation of Vector nodes") \
\
Initial load
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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") \
\
6961690: load oops from constant table on SPARC Oops should be loaded from the constant table of an nmethod instead of materializing them with a long code sequence. Reviewed-by: never, kvn
2010-12-03 01:34:31 -08:00
product(bool, UseRDPCForConstantTableBase, false, \
"Use Sparc RDPC instruction for the constant table base.") \
\
Initial load
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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") \
\
6772413: code cleanup Removed lines in adm64.make with interpret.o and moved few constant strings from header files. Reviewed-by: never
2008-11-18 12:31:53 -08:00
notproduct(ccstr, PrintIdealGraphAddress, "127.0.0.1", \
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"IP address to connect to visualizer") \
\
6772413: code cleanup Removed lines in adm64.make with interpret.o and moved few constant strings from header files. Reviewed-by: never
2008-11-18 12:31:53 -08:00
notproduct(ccstr, PrintIdealGraphFile, NULL, \
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"File to dump ideal graph to. If set overrides the " \
"use of the network") \
\
product(bool, UseOldInlining, true, \
"Enable the 1.3 inlining strategy") \
\
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") \
\
6973963: SEGV in ciBlock::start_bci() with EA Added more checks into ResourceObj and growableArray to verify correctness of allocation type. Reviewed-by: never, coleenp, dholmes
2010-08-03 15:55:03 -07:00
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.") \
\
Initial load
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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") \
\
8014959: assert(Compile::current()->live_nodes() < (uint)MaxNodeLimit) failed: Live Node limit exceeded limit Insert extra checks and bailouts for too many nodes Reviewed-by: kvn
2013-06-11 16:34:34 -04:00
product(intx, MaxNodeLimit, 80000, \
Initial load
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"Maximum number of nodes") \
\
8014959: assert(Compile::current()->live_nodes() < (uint)MaxNodeLimit) failed: Live Node limit exceeded limit Insert extra checks and bailouts for too many nodes Reviewed-by: kvn
2013-06-11 16:34:34 -04:00
product(intx, NodeLimitFudgeFactor, 2000, \
Initial load
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"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(intx, MinJumpTableSize, 18, \
"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") \
\
7125896: Eliminate nested locks Nested locks elimination done before lock nodes expansion by looking for outer locks of the same object. Reviewed-by: never, twisti
2012-01-07 13:26:43 -08:00
product(bool, EliminateNestedLocks, true, \
"Eliminate nested locks of the same object when possible") \
\
Initial load
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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") \
\
notproduct(bool, PrintEliminateLocks, false, \
"Print out when locks are eliminated") \
\
6934604: enable parts of EliminateAutoBox by default Resurrected autobox elimination code and enabled part of it by default. Reviewed-by: roland, twisti
2013-05-08 15:08:01 -07:00
product(bool, EliminateAutoBox, true, \
"Control optimizations for autobox elimination") \
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long) Reviewed-by: kvn, rasbold
2007-12-05 09:01:00 -08:00
\
product(intx, AutoBoxCacheMax, 128, \
"Sets max value cached by the java.lang.Integer autobox cache") \
\
6934604: enable parts of EliminateAutoBox by default Resurrected autobox elimination code and enabled part of it by default. Reviewed-by: roland, twisti
2013-05-08 15:08:01 -07:00
experimental(bool, AggressiveUnboxing, false, \
"Control optimizations for aggressive boxing elimination") \
\
6873799: enable escape analysis by default Enable escape analysis by default Reviewed-by: never
2009-08-19 19:05:18 -07:00
product(bool, DoEscapeAnalysis, true, \
Initial load
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"Perform escape analysis") \
\
7163534: VM could crashes assert(false) failed: infinite EA connection graph build In case of time or iterations limit reached C2 stops EA and continue compilation without EA as it does in product VM already. Reviewed-by: twisti
2012-10-25 17:32:03 -07:00
develop(bool, ExitEscapeAnalysisOnTimeout, true, \
"Exit or throw assert in EA when it reaches time limit") \
\
Initial load
2007-12-01 00:00:00 +00:00
notproduct(bool, PrintEscapeAnalysis, false, \
"Print the results of escape analysis") \
\
product(bool, EliminateAllocations, true, \
"Use escape analysis to eliminate allocations") \
\
6674588: (Escape Analysis) Improve Escape Analysis code Current EA code has several problems which have to be fixed. Reviewed-by: jrose, sgoldman
2008-03-14 15:26:33 -07:00
notproduct(bool, PrintEliminateAllocations, false, \
"Print out when allocations are eliminated") \
\
product(intx, EliminateAllocationArraySizeLimit, 64, \
"Array size (number of elements) limit for scalar replacement") \
\
7105605: Use EA info to optimize pointers compare Optimize pointers compare using EA information. Reviewed-by: never, twisti
2011-11-14 18:38:03 -08:00
product(bool, OptimizePtrCompare, true, \
"Use escape analysis to optimize pointers compare") \
\
notproduct(bool, PrintOptimizePtrCompare, false, \
"Print information about optimized pointers compare") \
\
7147744: CTW: assert(false) failed: infinite EA connection graph build Rewrote Connection graph construction code in EA to reduce time spent there. Reviewed-by: never
2012-03-12 10:46:47 -07:00
notproduct(bool, VerifyConnectionGraph , true, \
"Verify Connection Graph construction in Escape Analysis") \
\
6810845: Performance regression in mpegaudio on x64 Used the outer loop frequency in frequencies checks in RA. Reviewed-by: never, twisti
2009-03-26 15:04:55 -07:00
product(bool, UseOptoBiasInlining, true, \
6462850: generate biased locking code in C2 ideal graph Inline biased locking code in C2 ideal graph during macro nodes expansion Reviewed-by: never
2008-11-07 09:29:38 -08:00
"Generate biased locking code in C2 ideal graph") \
\
7103784: enable some flags by default Reviewed-by: kvn
2011-10-23 20:23:14 -07:00
product(bool, OptimizeStringConcat, true, \
6892658: C2 should optimize some stringbuilder patterns Reviewed-by: kvn, twisti
2009-11-12 09:24:21 -08:00
"Optimize the construction of Strings by StringBuilder") \
\
notproduct(bool, PrintOptimizeStringConcat, false, \
"Print information about transformations performed on Strings") \
\
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.") Escape Analysis fixes. Reviewed-by: never, rasbold
2008-07-28 17:12:52 -07:00
product(intx, ValueSearchLimit, 1000, \
"Recursion limit in PhaseMacroExpand::value_from_mem_phi") \
\
Initial load
2007-12-01 00:00:00 +00:00
product(intx, MaxLabelRootDepth, 1100, \
"Maximum times call Label_Root to prevent stack overflow") \
6701887: JDK7 server VM in endless loop in Node::dominates The method Node::dominates loops in the dead code which does not have a Region node. Reviewed-by: jrose, never
2008-05-15 22:43:11 -07:00
\
diagnostic(intx, DominatorSearchLimit, 1000, \
"Iterations limit in Node::dominates") \
6743900: frequency based block layout Post-register allocation pass that drives block layout by edge frequencies Reviewed-by: never, kvn
2008-11-06 14:59:10 -08:00
\
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") \
\
6810845: Performance regression in mpegaudio on x64 Used the outer loop frequency in frequencies checks in RA. Reviewed-by: never, twisti
2009-03-26 15:04:55 -07:00
product(bool, BlockLayoutRotateLoops, true, \
6743900: frequency based block layout Post-register allocation pass that drives block layout by edge frequencies Reviewed-by: never, kvn
2008-11-06 14:59:10 -08:00
"Allow back branches to be fall throughs in the block layour") \
6677625: Move platform specific flags from globals.hpp to globals_<arch>.hpp Reviewed-by: kvn, dholmes, coleenp
2012-08-27 15:17:17 -07:00
\
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[])") \
\
6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 Use SSE4.2 and AVX2 instructions for encodeArray intrinsic. Reviewed-by: roland
2013-01-22 15:34:16 -08:00
product(bool, SpecialEncodeISOArray, true, \
"special version of ISO_8859_1$Encoder.encodeISOArray") \
\
6677625: Move platform specific flags from globals.hpp to globals_<arch>.hpp Reviewed-by: kvn, dholmes, coleenp
2012-08-27 15:17:17 -07:00
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") \
\
7198499: TraceTypeProfile as diagnostic option Reviewed-by: kvn
2012-09-19 10:38:12 -07:00
diagnostic(bool, TraceTypeProfile, false, \
6677625: Move platform specific flags from globals.hpp to globals_<arch>.hpp Reviewed-by: kvn, dholmes, coleenp
2012-08-27 15:17:17 -07:00
"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") \
8005071: Incremental inlining for JSR 292 Post parse inlining driven by number of live nodes. Reviewed-by: twisti, kvn, jrose
2012-12-23 17:08:22 +01:00
\
product(bool, IncrementalInline, true, \
"do post parse inlining") \
\
develop(bool, AlwaysIncrementalInline, false, \
"do all inlining incrementally") \
\
product(intx, LiveNodeCountInliningCutoff, 20000, \
"max number of live nodes in a method") \
7197327: 40% regression on 8 b41 comp 8 b40 on specjvm2008.mpegaudio on oob Add support for expensive nodes. Reviewed-by: kvn
2013-02-12 12:56:11 +01:00
\
diagnostic(bool, OptimizeExpensiveOps, true, \
"Find best control for expensive operations") \
8005071: Incremental inlining for JSR 292 Post parse inlining driven by number of live nodes. Reviewed-by: twisti, kvn, jrose
2012-12-23 17:08:22 +01:00
Initial load
2007-12-01 00:00:00 +00:00
6892658: C2 should optimize some stringbuilder patterns Reviewed-by: kvn, twisti
2009-11-12 09:24:21 -08:00
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)
6989984: Use standard include model for Hospot Replaced MakeDeps and the includeDB files with more standardized solutions. Reviewed-by: coleenp, kvn, kamg
2010-11-23 13:22:55 -08:00
#endif // SHARE_VM_OPTO_C2_GLOBALS_HPP
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