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

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Initial load
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/*
8236625: Remove writeable macro from JVM flags declaration Reviewed-by: coleenp, hseigel, gziemski
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* Copyright (c) 2000, 2020, 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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*
*/
8216167: Update include guards to reflect correct directories Use script and some manual fixup to fix directores names in include guards. Reviewed-by: lfoltan, eosterlund, kbarrett
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#ifndef SHARE_OPTO_C2_GLOBALS_HPP
#define SHARE_OPTO_C2_GLOBALS_HPP
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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8224201: Simplify JVM flag macro expansions Reviewed-by: rehn, kvn, stuefe, tschatzl, coleenp, gziemski
2019-05-22 13:05:37 +02:00
#include "runtime/globals_shared.hpp"
8161258: Simplify including platform files Include patform files with macros cpu_header() etc. Do various cleanups of macro usages. Remove _64/_32 from adlc generated files and platform .hpp files. Merge stubRoutines_x86*.hpp. Remove empty mutex_<os>* files. Reviewed-by: dholmes, coleenp, kbarrett
2016-07-13 12:23:05 +02:00
#include "utilities/macros.hpp"
#include CPU_HEADER(c2_globals)
#include OS_HEADER(c2_globals)
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.
//
8243208: Clean up JVMFlag implementation Reviewed-by: dholmes, coleenp, gziemski
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#define C2_FLAGS(develop, \
develop_pd, \
product, \
product_pd, \
notproduct, \
range, \
constraint) \
\
product(bool, StressLCM, false, DIAGNOSTIC, \
8009120: Fuzz instruction scheduling in HotSpot compilers Reviewed-by: kvn, vlivanov
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"Randomize instruction scheduling in LCM") \
\
8243208: Clean up JVMFlag implementation Reviewed-by: dholmes, coleenp, gziemski
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product(bool, StressGCM, false, DIAGNOSTIC, \
8009120: Fuzz instruction scheduling in HotSpot compilers Reviewed-by: kvn, vlivanov
2013-03-05 04:24:50 -08:00
"Randomize instruction scheduling in GCM") \
\
8252219: C2: Randomize IGVN worklist for stress testing Add 'StressIGVN' option to let C2 randomize IGVN worklist order. When enabled, the worklist is shuffled before each main run of the IGVN loop. Also add 'StressSeed=N' option to specify the seed. If the seed is not specified, a random one is generated. In either case, the seed is logged if 'LogCompilation' is enabled. The new options are declared as production+diagnostic for consistency with the existing 'StressLCM' and 'StressGCM' options. Reviewed-by: kvn, chagedorn, thartmann
2020-09-28 06:44:58 +00:00
product(bool, StressIGVN, false, DIAGNOSTIC, \
"Randomize worklist traversal in IGVN") \
\
product(uint, StressSeed, 0, DIAGNOSTIC, \
"Seed for IGVN stress testing (if unset, a random one is " \
"generated") \
range(0, max_juint) \
\
8203480: IncompatibleClassChangeError thrown at sites linked to default interface methods Reviewed-by: kvn
2018-06-06 23:36:08 +03:00
develop(bool, StressMethodHandleLinkerInlining, false, \
"Stress inlining through method handle linkers") \
\
Initial load
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develop(intx, OptoPrologueNops, 0, \
"Insert this many extra nop instructions " \
"in the prologue of every nmethod") \
8078554: Compiler: implement ranges (optionally constraints) for those flags that have them missing Add range check or constraint where necessary. Reviewed-by: roland, thartmann
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range(0, 128) \
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\
product_pd(intx, InteriorEntryAlignment, \
"Code alignment for interior entry points " \
"in generated code (in bytes)") \
8078554: Compiler: implement ranges (optionally constraints) for those flags that have them missing Add range check or constraint where necessary. Reviewed-by: roland, thartmann
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constraint(InteriorEntryAlignmentConstraintFunc, AfterErgo) \
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\
product(intx, MaxLoopPad, (OptoLoopAlignment-1), \
8122937: [JEP 245] Validate JVM Command-Line Flag Arguments Validate the arguments to all JVM command-line flags so as to avoid crashes, and ensure that appropriate error messages are displayed when they are invalid. Reviewed-by: ddmitriev, dholmes, kbarrett, drwhite, brutisso, coleenp
2015-06-18 14:39:38 -05:00
"Align a loop if padding size in bytes is less or equal to this " \
"value") \
8078554: Compiler: implement ranges (optionally constraints) for those flags that have them missing Add range check or constraint where necessary. Reviewed-by: roland, thartmann
2015-10-09 14:21:26 +02:00
range(0, max_jint) \
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\
8076276: Add support for AVX512 Reviewed-by: kvn, roland
2015-05-08 11:49:20 -07:00
product(intx, MaxVectorSize, 64, \
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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"Max vector size in bytes, " \
"actual size could be less depending on elements type") \
8078554: Compiler: implement ranges (optionally constraints) for those flags that have them missing Add range check or constraint where necessary. Reviewed-by: roland, thartmann
2015-10-09 14:21:26 +02:00
range(0, max_jint) \
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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\
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") \
\
Initial load
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product(intx, NumberOfLoopInstrToAlign, 4, \
"Number of first instructions in a loop to align") \
8078554: Compiler: implement ranges (optionally constraints) for those flags that have them missing Add range check or constraint where necessary. Reviewed-by: roland, thartmann
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range(0, max_jint) \
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\
notproduct(intx, IndexSetWatch, 0, \
"Trace all operations on this IndexSet (-1 means all, 0 none)") \
8122937: [JEP 245] Validate JVM Command-Line Flag Arguments Validate the arguments to all JVM command-line flags so as to avoid crashes, and ensure that appropriate error messages are displayed when they are invalid. Reviewed-by: ddmitriev, dholmes, kbarrett, drwhite, brutisso, coleenp
2015-06-18 14:39:38 -05:00
range(-1, 0) \
Initial load
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\
develop(intx, OptoNodeListSize, 4, \
"Starting allocation size of Node_List data structures") \
8078554: Compiler: implement ranges (optionally constraints) for those flags that have them missing Add range check or constraint where necessary. Reviewed-by: roland, thartmann
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range(0, max_jint) \
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\
develop(intx, OptoBlockListSize, 8, \
"Starting allocation size of Block_List data structures") \
8078554: Compiler: implement ranges (optionally constraints) for those flags that have them missing Add range check or constraint where necessary. Reviewed-by: roland, thartmann
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range(0, max_jint) \
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\
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") \
\
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") \
\
Initial load
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develop(bool, IdealizedNumerics, false, \
"Check performance difference allowing FP " \
"associativity and commutativity...") \
\
8243208: Clean up JVMFlag implementation Reviewed-by: dholmes, coleenp, gziemski
2020-09-11 04:05:18 +00:00
product_pd(bool, IdealizeClearArrayNode, DIAGNOSTIC, \
8166561: [s390] Adaptions needed for s390 port in C1 and C2 Reviewed-by: kvn
2016-09-22 18:29:15 +02:00
"Replace ClearArrayNode by subgraph of basic operations.") \
\
Initial load
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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") \
\
8243208: Clean up JVMFlag implementation Reviewed-by: dholmes, coleenp, gziemski
2020-09-11 04:05:18 +00:00
product(bool, PrintOptoAssembly, false, DIAGNOSTIC, \
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"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") \
8078554: Compiler: implement ranges (optionally constraints) for those flags that have them missing Add range check or constraint where necessary. Reviewed-by: roland, thartmann
2015-10-09 14:21:26 +02:00
range(0, max_jint / 4) \
Initial load
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\
8149421: Vectorized Post Loops Add vectorised post loop for counted loops with vectors. Reviewed-by: kvn
2016-02-12 16:12:15 -08:00
product_pd(intx, LoopPercentProfileLimit, \
"Unroll loop bodies with % node count of profile limit") \
range(10, 100) \
\
8022993: Convert MAX_UNROLL constant to LoopMaxUnroll C2 flag Replace MAX_UNROLL constant with new C2 LoopMaxUnroll flag. Reviewed-by: roland
2013-08-14 10:21:26 -07:00
product(intx, LoopMaxUnroll, 16, \
"Maximum number of unrolls for main loop") \
8078554: Compiler: implement ranges (optionally constraints) for those flags that have them missing Add range check or constraint where necessary. Reviewed-by: roland, thartmann
2015-10-09 14:21:26 +02:00
range(0, max_jint) \
8022993: Convert MAX_UNROLL constant to LoopMaxUnroll C2 flag Replace MAX_UNROLL constant with new C2 LoopMaxUnroll flag. Reviewed-by: roland
2013-08-14 10:21:26 -07:00
\
8140779: Code generation fixes for avx512 Assembler refactoring. Abstract away instruction attributes. Reviewed-by: kvn, roland, iveresov
2015-11-09 11:26:41 -08:00
product_pd(bool, SuperWordLoopUnrollAnalysis, \
"Map number of unrolls for main loop via " \
"Superword Level Parallelism analysis") \
8080325: SuperWord loop unrolling analysis Determine loop unroll factor based on supported vectors sizes. Reviewed-by: roland, kvn
2015-06-16 16:10:36 -07:00
\
8243208: Clean up JVMFlag implementation Reviewed-by: dholmes, coleenp, gziemski
2020-09-11 04:05:18 +00:00
product(bool, PostLoopMultiversioning, false, EXPERIMENTAL, \
8151573: Multiversioning for range check elimination Range check elimination in post loops Reviewed-by: kvn
2016-04-05 10:34:05 -07:00
"Multi versioned post loops to eliminate range checks") \
\
8080325: SuperWord loop unrolling analysis Determine loop unroll factor based on supported vectors sizes. Reviewed-by: roland, kvn
2015-06-16 16:10:36 -07:00
notproduct(bool, TraceSuperWordLoopUnrollAnalysis, false, \
"Trace what Superword Level Parallelism analysis applies") \
\
8243208: Clean up JVMFlag implementation Reviewed-by: dholmes, coleenp, gziemski
2020-09-11 04:05:18 +00:00
product(bool, UseVectorMacroLogic, true, DIAGNOSTIC, \
8241040: Support for AVX-512 Ternary Logic Instruction A new pass has been added which folds expression tree involving vector boolean logic operations into a MacroLogic node. Reviewed-by: vlivanov, neliasso
2020-04-02 22:38:23 +05:30
"Use ternary macro logic instructions") \
\
Initial load
2007-12-01 00:00:00 +00:00
product(intx, LoopUnrollMin, 4, \
"Minimum number of unroll loop bodies before checking progress" \
"of rounds of unroll,optimize,..") \
8078554: Compiler: implement ranges (optionally constraints) for those flags that have them missing Add range check or constraint where necessary. Reviewed-by: roland, thartmann
2015-10-09 14:21:26 +02:00
range(0, max_jint) \
8175096: Analyse subword in the loop to set maximum vector size Reviewed-by: kvn
2017-07-19 08:29:44 -07:00
\
8189067: SuperWord optimization crashes with "assert(out == prev || prev == __null) failed: no branches off of store slice" Only move the store if the LCA of all users is outside of the loop. Re-enable UseSubwordForMaxVector. Reviewed-by: kvn, roland
2017-10-13 14:02:01 +02:00
product(bool, UseSubwordForMaxVector, true, \
8175096: Analyse subword in the loop to set maximum vector size Reviewed-by: kvn
2017-07-19 08:29:44 -07:00
"Use Subword Analysis to set maximum vector size") \
Initial load
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\
8192846: Support cmov vectorization for float Reviewed-by: kvn
2017-12-05 09:49:23 -08:00
product(bool, UseVectorCmov, false, \
"Use Vectorized Cmov") \
\
Initial load
2007-12-01 00:00:00 +00:00
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." ) \
8078554: Compiler: implement ranges (optionally constraints) for those flags that have them missing Add range check or constraint where necessary. Reviewed-by: roland, thartmann
2015-10-09 14:21:26 +02:00
range(0, max_intx) \
Initial load
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\
product(intx, MultiArrayExpandLimit, 6, \
"Maximum number of individual allocations in an inline-expanded " \
"multianewarray instruction") \
8078554: Compiler: implement ranges (optionally constraints) for those flags that have them missing Add range check or constraint where necessary. Reviewed-by: roland, thartmann
2015-10-09 14:21:26 +02:00
range(0, max_jint) \
Initial load
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\
notproduct(bool, TraceProfileTripCount, false, \
"Trace profile loop trip count information") \
\
6869327: Add new C2 flag to keep safepoints in counted loops Reviewed-by: kvn, shade
2015-12-04 14:06:38 +01:00
product(bool, UseCountedLoopSafepoints, false, \
"Force counted loops to keep a safepoint") \
\
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
develop(bool, TraceLoopLimitCheck, false, \
"Trace generation of loop limits checks") \
\
develop(bool, TraceRangeLimitCheck, false, \
"Trace additional overflow checks in RCE") \
\
8028767: PPC64: (part 121): smaller shared changes needed to build C2 Smaller shared changes required to build the C2 compiler on PPC64. Reviewed-by: kvn
2013-11-21 19:00:57 -08:00
/* OptimizeFill not yet supported on PowerPC. */ \
product(bool, OptimizeFill, true PPC64_ONLY(&& false), \
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") \
\
product(intx, TrackedInitializationLimit, 50, \
"When initializing fields, track up to this many words") \
8078554: Compiler: implement ranges (optionally constraints) for those flags that have them missing Add range check or constraint where necessary. Reviewed-by: roland, thartmann
2015-10-09 14:21:26 +02:00
range(0, 65535) \
Initial load
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\
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") \
\
Initial load
2007-12-01 00:00:00 +00:00
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
2009-01-07 11:04:45 -08:00
notproduct(bool, VerifyRegisterAllocator , false, \
"Verify Register Allocator") \
\
Initial load
2007-12-01 00:00:00 +00:00
develop_pd(intx, FLOATPRESSURE, \
"Number of float LRG's that constitute high register pressure") \
8078554: Compiler: implement ranges (optionally constraints) for those flags that have them missing Add range check or constraint where necessary. Reviewed-by: roland, thartmann
2015-10-09 14:21:26 +02:00
range(0, max_jint) \
Initial load
2007-12-01 00:00:00 +00:00
\
develop_pd(intx, INTPRESSURE, \
"Number of integer LRG's that constitute high register pressure") \
8078554: Compiler: implement ranges (optionally constraints) for those flags that have them missing Add range check or constraint where necessary. Reviewed-by: roland, thartmann
2015-10-09 14:21:26 +02:00
range(0, max_jint) \
Initial load
2007-12-01 00:00:00 +00:00
\
notproduct(bool, TraceOptoPipelining, false, \
"Trace pipelining information") \
\
notproduct(bool, TraceOptoOutput, false, \
"Trace pipelining information") \
\
product_pd(bool, OptoScheduling, \
"Instruction Scheduling after register allocation") \
\
8134802: LCM register pressure scheduling Calculate register pressure in a block to help instructions scheduling. Reviewed-by: kvn, dlong
2015-09-16 13:16:17 -07:00
product_pd(bool, OptoRegScheduling, \
"Instruction Scheduling before register allocation for pressure") \
\
Initial load
2007-12-01 00:00:00 +00:00
product(bool, PartialPeelLoop, true, \
"Partial peel (rotate) loops") \
\
product(intx, PartialPeelNewPhiDelta, 0, \
"Additional phis that can be created by partial peeling") \
8078554: Compiler: implement ranges (optionally constraints) for those flags that have them missing Add range check or constraint where necessary. Reviewed-by: roland, thartmann
2015-10-09 14:21:26 +02:00
range(0, max_jint) \
Initial load
2007-12-01 00:00:00 +00:00
\
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") \
\
8076284: Improve vectorization of parallel streams Improve vectorization of java/util/stream/Streams$RangeIntSpliterator::forEachRemaining() method and enable loop vectorization in a given method on demand. Reviewed-by: kvn
2015-05-05 12:33:57 -07:00
product(bool, AllowVectorizeOnDemand, true, \
"Globally supress vectorization set in VectorizeMethod") \
\
Initial load
2007-12-01 00:00:00 +00:00
product(bool, UseSuperWord, true, \
"Transform scalar operations into superword operations") \
\
develop(bool, SuperWordRTDepCheck, false, \
"Enable runtime dependency checks.") \
\
8074981: Integer/FP scalar reduction optimization Add scalar reduction optimization to C2 to take advantage of vector instructions in modern x86 CPUs. Reviewed-by: kvn, twisti
2015-04-01 18:07:50 -07:00
product(bool, SuperWordReductions, true, \
"Enable reductions support in superword.") \
\
8139340: SuperWord enhancement to support vector conditional move (CMovVD) on Intel AVX cpu Emit vector conditional moves Reviewed-by: kvn
2015-10-26 19:33:31 -07:00
product(bool, UseCMoveUnconditionally, false, \
"Use CMove (scalar and vector) ignoring profitability test.") \
\
8136725: Provide utility for creation a counted loop reserve copy (clone) Make it easier to revert to the original loop should that be needed Reviewed-by: kvn
2015-10-09 12:17:58 -07:00
product(bool, DoReserveCopyInSuperWord, true, \
"Create reserve copy of graph in SuperWord.") \
\
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
2007-12-01 00:00:00 +00:00
"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
2007-12-01 00:00:00 +00:00
product_pd(bool, OptoBundling, \
"Generate nops to fill i-cache lines") \
\
product_pd(intx, ConditionalMoveLimit, \
"Limit of ops to make speculative when using CMOVE") \
8078554: Compiler: implement ranges (optionally constraints) for those flags that have them missing Add range check or constraint where necessary. Reviewed-by: roland, thartmann
2015-10-09 14:21:26 +02:00
range(0, max_jint) \
Initial load
2007-12-01 00:00:00 +00:00
\
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.") \
\
8132168: Support IdealGraphVisualizer in optimized build Reviewed-by: kvn
2015-10-20 19:22:56 +03:00
notproduct(bool, PrintIdealGraph, false, \
Initial load
2007-12-01 00:00:00 +00:00
"Print ideal graph to XML file / network interface. " \
"By default attempts to connect to the visualizer on a socket.") \
\
8132168: Support IdealGraphVisualizer in optimized build Reviewed-by: kvn
2015-10-20 19:22:56 +03:00
notproduct(intx, PrintIdealGraphLevel, 0, \
8060215: per-method PrintIdealGraphLevel Use CompileCommand=option to set PrintIdealGraphLevel on a per-method level. Introduce the PrintIdealGraph develop to control/check if printing the graph is enabled for any method Reviewed-by: kvn, dlong, thartmann
2014-10-15 10:51:43 +02:00
"Level of detail of the ideal graph printout. " \
8139046: Compiler Control: IGVPrintLevel directive should set PrintIdealGraph Make !PrintIdealGraph a synonym for PrintIdealGraphLevel=-1 => print nothing Reviewed-by: simonis, phh, neliasso
2020-06-12 13:33:29 -07:00
"System-wide value, -1=printing is disabled, " \
"0=print nothing except IGVPrintLevel directives, " \
"4=all details printed. " \
8060215: per-method PrintIdealGraphLevel Use CompileCommand=option to set PrintIdealGraphLevel on a per-method level. Introduce the PrintIdealGraph develop to control/check if printing the graph is enabled for any method Reviewed-by: kvn, dlong, thartmann
2014-10-15 10:51:43 +02:00
"Level of detail of printouts can be set on a per-method level " \
"as well by using CompileCommand=option.") \
8139046: Compiler Control: IGVPrintLevel directive should set PrintIdealGraph Make !PrintIdealGraph a synonym for PrintIdealGraphLevel=-1 => print nothing Reviewed-by: simonis, phh, neliasso
2020-06-12 13:33:29 -07:00
range(-1, 4) \
8060215: per-method PrintIdealGraphLevel Use CompileCommand=option to set PrintIdealGraphLevel on a per-method level. Introduce the PrintIdealGraph develop to control/check if printing the graph is enabled for any method Reviewed-by: kvn, dlong, thartmann
2014-10-15 10:51:43 +02:00
\
8132168: Support IdealGraphVisualizer in optimized build Reviewed-by: kvn
2015-10-20 19:22:56 +03:00
notproduct(intx, PrintIdealGraphPort, 4444, \
Initial load
2007-12-01 00:00:00 +00:00
"Ideal graph printer to network port") \
8078554: Compiler: implement ranges (optionally constraints) for those flags that have them missing Add range check or constraint where necessary. Reviewed-by: roland, thartmann
2015-10-09 14:21:26 +02:00
range(0, SHRT_MAX) \
Initial load
2007-12-01 00:00:00 +00:00
\
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", \
Initial load
2007-12-01 00:00:00 +00:00
"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, \
Initial load
2007-12-01 00:00:00 +00:00
"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") \
\
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, \
8122937: [JEP 245] Validate JVM Command-Line Flag Arguments Validate the arguments to all JVM command-line flags so as to avoid crashes, and ensure that appropriate error messages are displayed when they are invalid. Reviewed-by: ddmitriev, dholmes, kbarrett, drwhite, brutisso, coleenp
2015-06-18 14:39:38 -05:00
"Attempt to compile while subsuming loads into machine " \
"instructions.") \
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, StressRecompilation, false, \
8122937: [JEP 245] Validate JVM Command-Line Flag Arguments Validate the arguments to all JVM command-line flags so as to avoid crashes, and ensure that appropriate error messages are displayed when they are invalid. Reviewed-by: ddmitriev, dholmes, kbarrett, drwhite, brutisso, coleenp
2015-06-18 14:39:38 -05:00
"Recompile each compiled method without subsuming loads " \
"or escape analysis.") \
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
\
Initial load
2007-12-01 00:00:00 +00:00
develop(intx, ImplicitNullCheckThreshold, 3, \
8122937: [JEP 245] Validate JVM Command-Line Flag Arguments Validate the arguments to all JVM command-line flags so as to avoid crashes, and ensure that appropriate error messages are displayed when they are invalid. Reviewed-by: ddmitriev, dholmes, kbarrett, drwhite, brutisso, coleenp
2015-06-18 14:39:38 -05:00
"Don't do implicit null checks if NPE's in a method exceeds " \
"limit") \
8078554: Compiler: implement ranges (optionally constraints) for those flags that have them missing Add range check or constraint where necessary. Reviewed-by: roland, thartmann
2015-10-09 14:21:26 +02:00
range(0, max_jint) \
Initial load
2007-12-01 00:00:00 +00:00
\
product(intx, LoopOptsCount, 43, \
"Set level of loop optimization for tier 1 compiles") \
8078554: Compiler: implement ranges (optionally constraints) for those flags that have them missing Add range check or constraint where necessary. Reviewed-by: roland, thartmann
2015-10-09 14:21:26 +02:00
range(5, 43) \
Initial load
2007-12-01 00:00:00 +00:00
\
/* controls for heat-based inlining */ \
\
develop(intx, NodeCountInliningCutoff, 18000, \
"If parser node generation exceeds limit stop inlining") \
8078554: Compiler: implement ranges (optionally constraints) for those flags that have them missing Add range check or constraint where necessary. Reviewed-by: roland, thartmann
2015-10-09 14:21:26 +02:00
range(0, max_jint) \
Initial load
2007-12-01 00:00:00 +00:00
\
develop(intx, NodeCountInliningStep, 1000, \
"Target size of warm calls inlined between optimization passes") \
8078554: Compiler: implement ranges (optionally constraints) for those flags that have them missing Add range check or constraint where necessary. Reviewed-by: roland, thartmann
2015-10-09 14:21:26 +02:00
range(0, max_jint) \
Initial load
2007-12-01 00:00:00 +00:00
\
develop(bool, InlineWarmCalls, false, \
"Use a heat-based priority queue to govern inlining") \
\
8179618: Fixes for range of OptoLoopAlignment and Inlining flags OptoLoopAlignment must be multiple of NOP size. Inlining flags must not exceed WarmCallInfo::MAX_VALUE(). Reviewed-by: kvn, stuefe
2017-04-28 14:34:24 +02:00
/* Max values must not exceed WarmCallInfo::MAX_VALUE(). */ \
Initial load
2007-12-01 00:00:00 +00:00
develop(intx, HotCallCountThreshold, 999999, \
"large numbers of calls (per method invocation) force hotness") \
8179618: Fixes for range of OptoLoopAlignment and Inlining flags OptoLoopAlignment must be multiple of NOP size. Inlining flags must not exceed WarmCallInfo::MAX_VALUE(). Reviewed-by: kvn, stuefe
2017-04-28 14:34:24 +02:00
range(0, ((intx)MIN2((int64_t)max_intx,(int64_t)(+1.0e10)))) \
Initial load
2007-12-01 00:00:00 +00:00
\
develop(intx, HotCallProfitThreshold, 999999, \
"highly profitable inlining opportunities force hotness") \
8179618: Fixes for range of OptoLoopAlignment and Inlining flags OptoLoopAlignment must be multiple of NOP size. Inlining flags must not exceed WarmCallInfo::MAX_VALUE(). Reviewed-by: kvn, stuefe
2017-04-28 14:34:24 +02:00
range(0, ((intx)MIN2((int64_t)max_intx,(int64_t)(+1.0e10)))) \
Initial load
2007-12-01 00:00:00 +00:00
\
develop(intx, HotCallTrivialWork, -1, \
"trivial execution time (no larger than this) forces hotness") \
8179618: Fixes for range of OptoLoopAlignment and Inlining flags OptoLoopAlignment must be multiple of NOP size. Inlining flags must not exceed WarmCallInfo::MAX_VALUE(). Reviewed-by: kvn, stuefe
2017-04-28 14:34:24 +02:00
range(-1, ((intx)MIN2((int64_t)max_intx,(int64_t)(+1.0e10)))) \
Initial load
2007-12-01 00:00:00 +00:00
\
develop(intx, HotCallTrivialSize, -1, \
"trivial methods (no larger than this) force calls to be hot") \
8179618: Fixes for range of OptoLoopAlignment and Inlining flags OptoLoopAlignment must be multiple of NOP size. Inlining flags must not exceed WarmCallInfo::MAX_VALUE(). Reviewed-by: kvn, stuefe
2017-04-28 14:34:24 +02:00
range(-1, ((intx)MIN2((int64_t)max_intx,(int64_t)(+1.0e10)))) \
Initial load
2007-12-01 00:00:00 +00:00
\
develop(intx, WarmCallMinCount, -1, \
"number of calls (per method invocation) to enable inlining") \
8179618: Fixes for range of OptoLoopAlignment and Inlining flags OptoLoopAlignment must be multiple of NOP size. Inlining flags must not exceed WarmCallInfo::MAX_VALUE(). Reviewed-by: kvn, stuefe
2017-04-28 14:34:24 +02:00
range(-1, ((intx)MIN2((int64_t)max_intx,(int64_t)(+1.0e10)))) \
Initial load
2007-12-01 00:00:00 +00:00
\
develop(intx, WarmCallMinProfit, -1, \
"number of calls (per method invocation) to enable inlining") \
8179618: Fixes for range of OptoLoopAlignment and Inlining flags OptoLoopAlignment must be multiple of NOP size. Inlining flags must not exceed WarmCallInfo::MAX_VALUE(). Reviewed-by: kvn, stuefe
2017-04-28 14:34:24 +02:00
range(-1, ((intx)MIN2((int64_t)max_intx,(int64_t)(+1.0e10)))) \
Initial load
2007-12-01 00:00:00 +00:00
\
develop(intx, WarmCallMaxWork, 999999, \
"execution time of the largest inlinable method") \
8179618: Fixes for range of OptoLoopAlignment and Inlining flags OptoLoopAlignment must be multiple of NOP size. Inlining flags must not exceed WarmCallInfo::MAX_VALUE(). Reviewed-by: kvn, stuefe
2017-04-28 14:34:24 +02:00
range(0, ((intx)MIN2((int64_t)max_intx,(int64_t)(+1.0e10)))) \
Initial load
2007-12-01 00:00:00 +00:00
\
develop(intx, WarmCallMaxSize, 999999, \
"size of the largest inlinable method") \
8179618: Fixes for range of OptoLoopAlignment and Inlining flags OptoLoopAlignment must be multiple of NOP size. Inlining flags must not exceed WarmCallInfo::MAX_VALUE(). Reviewed-by: kvn, stuefe
2017-04-28 14:34:24 +02:00
range(0, ((intx)MIN2((int64_t)max_intx,(int64_t)(+1.0e10)))) \
Initial load
2007-12-01 00:00:00 +00:00
\
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
2007-12-01 00:00:00 +00:00
"Maximum number of nodes") \
8078554: Compiler: implement ranges (optionally constraints) for those flags that have them missing Add range check or constraint where necessary. Reviewed-by: roland, thartmann
2015-10-09 14:21:26 +02:00
range(1000, max_jint / 3) \
Initial load
2007-12-01 00:00:00 +00:00
\
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
2007-12-01 00:00:00 +00:00
"Fudge Factor for certain optimizations") \
8078554: Compiler: implement ranges (optionally constraints) for those flags that have them missing Add range check or constraint where necessary. Reviewed-by: roland, thartmann
2015-10-09 14:21:26 +02:00
constraint(NodeLimitFudgeFactorConstraintFunc, AfterErgo) \
Initial load
2007-12-01 00:00:00 +00:00
\
product(bool, UseJumpTables, true, \
"Use JumpTables instead of a binary search tree for switches") \
\
product(bool, UseDivMod, true, \
"Use combined DivMod instruction if available") \
\
8010941: MinJumpTableSize is set to 18, investigate if that's still optimal Lowered the MinJumpTableSize for each platform Reviewed-by: kvn
2013-09-11 09:34:00 +02:00
product_pd(intx, MinJumpTableSize, \
Initial load
2007-12-01 00:00:00 +00:00
"Minimum number of targets in a generated jump table") \
8078554: Compiler: implement ranges (optionally constraints) for those flags that have them missing Add range check or constraint where necessary. Reviewed-by: roland, thartmann
2015-10-09 14:21:26 +02:00
range(0, max_intx) \
Initial load
2007-12-01 00:00:00 +00:00
\
product(intx, MaxJumpTableSize, 65000, \
"Maximum number of targets in a generated jump table") \
8078554: Compiler: implement ranges (optionally constraints) for those flags that have them missing Add range check or constraint where necessary. Reviewed-by: roland, thartmann
2015-10-09 14:21:26 +02:00
range(0, max_intx) \
Initial load
2007-12-01 00:00:00 +00:00
\
product(intx, MaxJumpTableSparseness, 5, \
"Maximum sparseness for jumptables") \
8078554: Compiler: implement ranges (optionally constraints) for those flags that have them missing Add range check or constraint where necessary. Reviewed-by: roland, thartmann
2015-10-09 14:21:26 +02:00
range(0, max_intx / 4) \
Initial load
2007-12-01 00:00:00 +00:00
\
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
2007-12-01 00:00:00 +00:00
notproduct(bool, PrintLockStatistics, false, \
"Print precise statistics on the dynamic lock usage") \
\
8243208: Clean up JVMFlag implementation Reviewed-by: dholmes, coleenp, gziemski
2020-09-11 04:05:18 +00:00
product(bool, PrintPreciseBiasedLockingStatistics, false, DIAGNOSTIC, \
8231264: Implementation of JEP 374: Disable biased-locking and deprecate all flags related to biased-locking Changed default value of UseBiasedLocking to false and deprecated related flags. Reviewed-by: dholmes, dcubed
2020-05-13 15:47:10 +00:00
"(Deprecated) Print per-lock-site statistics of biased locking " \
"in JVM") \
Initial load
2007-12-01 00:00:00 +00:00
\
8243208: Clean up JVMFlag implementation Reviewed-by: dholmes, coleenp, gziemski
2020-09-11 04:05:18 +00:00
product(bool, PrintPreciseRTMLockingStatistics, false, DIAGNOSTIC, \
8031320: Use Intel RTM instructions for locks Use RTM for inflated locks and stack locks. Reviewed-by: iveresov, twisti, roland, dcubed
2014-03-20 17:49:27 -07:00
"Print per-lock-site statistics of rtm locking in JVM") \
\
Initial load
2007-12-01 00:00:00 +00:00
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") \
8078554: Compiler: implement ranges (optionally constraints) for those flags that have them missing Add range check or constraint where necessary. Reviewed-by: roland, thartmann
2015-10-09 14:21:26 +02:00
range(0, max_jint) \
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
\
8243208: Clean up JVMFlag implementation Reviewed-by: dholmes, coleenp, gziemski
2020-09-11 04:05:18 +00:00
product(bool, AggressiveUnboxing, true, DIAGNOSTIC, \
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
"Control optimizations for aggressive boxing elimination") \
\
8003854: PPC64 (part 115): Introduce PostallocExpand that expands nodes after register allocation Added ability in C2 to expand mach nodes to several mach nodes after register allocation Reviewed-by: kvn
2013-11-14 19:24:59 -08:00
develop(bool, TracePostallocExpand, false, "Trace expanding nodes after" \
" register allocation.") \
\
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
2007-12-01 00:00:00 +00:00
"Perform escape analysis") \
\
8041984: CompilerThread seems to occupy all CPU in a very rare situation Add new timeout checks to EA. Reviewed-by: iveresov, drchase
2014-10-24 10:28:19 -07:00
product(double, EscapeAnalysisTimeout, 20. DEBUG_ONLY(+40.), \
"Abort EA when it reaches time limit (in sec)") \
8078554: Compiler: implement ranges (optionally constraints) for those flags that have them missing Add range check or constraint where necessary. Reviewed-by: roland, thartmann
2015-10-09 14:21:26 +02:00
range(0, DBL_MAX) \
8041984: CompilerThread seems to occupy all CPU in a very rare situation Add new timeout checks to EA. Reviewed-by: iveresov, drchase
2014-10-24 10:28:19 -07:00
\
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") \
8078554: Compiler: implement ranges (optionally constraints) for those flags that have them missing Add range check or constraint where necessary. Reviewed-by: roland, thartmann
2015-10-09 14:21:26 +02:00
range(0, max_jint) \
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
\
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, \
8231264: Implementation of JEP 374: Disable biased-locking and deprecate all flags related to biased-locking Changed default value of UseBiasedLocking to false and deprecated related flags. Reviewed-by: dholmes, dcubed
2020-05-13 15:47:10 +00:00
"(Deprecated) Generate biased locking code in C2 ideal graph") \
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
\
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") \
8078554: Compiler: implement ranges (optionally constraints) for those flags that have them missing Add range check or constraint where necessary. Reviewed-by: roland, thartmann
2015-10-09 14:21:26 +02:00
range(0, max_jint) \
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
\
Initial load
2007-12-01 00:00:00 +00:00
product(intx, MaxLabelRootDepth, 1100, \
"Maximum times call Label_Root to prevent stack overflow") \
8078554: Compiler: implement ranges (optionally constraints) for those flags that have them missing Add range check or constraint where necessary. Reviewed-by: roland, thartmann
2015-10-09 14:21:26 +02:00
range(100, max_jint) \
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
\
8243208: Clean up JVMFlag implementation Reviewed-by: dholmes, coleenp, gziemski
2020-09-11 04:05:18 +00:00
product(intx, DominatorSearchLimit, 1000, DIAGNOSTIC, \
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
"Iterations limit in Node::dominates") \
8078554: Compiler: implement ranges (optionally constraints) for those flags that have them missing Add range check or constraint where necessary. Reviewed-by: roland, thartmann
2015-10-09 14:21:26 +02:00
range(0, max_jint) \
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, \
8122937: [JEP 245] Validate JVM Command-Line Flag Arguments Validate the arguments to all JVM command-line flags so as to avoid crashes, and ensure that appropriate error messages are displayed when they are invalid. Reviewed-by: ddmitriev, dholmes, kbarrett, drwhite, brutisso, coleenp
2015-06-18 14:39:38 -05:00
"Miniumum %% of a successor (predecessor) for which block " \
"layout a will allow a fork (join) in a single chain") \
range(0, 100) \
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
\
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, \
8154135: Loop alignment may be added inside the loop body Reviewed-by: kvn, vlivanov
2016-04-18 20:57:27 +03:00
"Allow back branches to be fall throughs in the block layout") \
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
\
8243208: Clean up JVMFlag implementation Reviewed-by: dholmes, coleenp, gziemski
2020-09-11 04:05:18 +00:00
product(bool, InlineReflectionGetCallerClass, true, DIAGNOSTIC, \
8122937: [JEP 245] Validate JVM Command-Line Flag Arguments Validate the arguments to all JVM command-line flags so as to avoid crashes, and ensure that appropriate error messages are displayed when they are invalid. Reviewed-by: ddmitriev, dholmes, kbarrett, drwhite, brutisso, coleenp
2015-06-18 14:39:38 -05:00
"inline sun.reflect.Reflection.getCallerClass(), known to be " \
"part of base library DLL") \
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
\
8243208: Clean up JVMFlag implementation Reviewed-by: dholmes, coleenp, gziemski
2020-09-11 04:05:18 +00:00
product(bool, InlineObjectCopy, true, DIAGNOSTIC, \
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
"inline Object.clone and Arrays.copyOf[Range] intrinsics") \
\
8243208: Clean up JVMFlag implementation Reviewed-by: dholmes, coleenp, gziemski
2020-09-11 04:05:18 +00:00
product(bool, SpecialStringCompareTo, true, DIAGNOSTIC, \
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
"special version of string compareTo") \
\
8243208: Clean up JVMFlag implementation Reviewed-by: dholmes, coleenp, gziemski
2020-09-11 04:05:18 +00:00
product(bool, SpecialStringIndexOf, true, DIAGNOSTIC, \
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
"special version of string indexOf") \
\
8243208: Clean up JVMFlag implementation Reviewed-by: dholmes, coleenp, gziemski
2020-09-11 04:05:18 +00:00
product(bool, SpecialStringEquals, true, DIAGNOSTIC, \
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
"special version of string equals") \
\
8243208: Clean up JVMFlag implementation Reviewed-by: dholmes, coleenp, gziemski
2020-09-11 04:05:18 +00:00
product(bool, SpecialArraysEquals, true, DIAGNOSTIC, \
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
"special version of Arrays.equals(char[],char[])") \
\
8243208: Clean up JVMFlag implementation Reviewed-by: dholmes, coleenp, gziemski
2020-09-11 04:05:18 +00:00
product(bool, SpecialEncodeISOArray, true, DIAGNOSTIC, \
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
"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, 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") \
\
8243208: Clean up JVMFlag implementation Reviewed-by: dholmes, coleenp, gziemski
2020-09-11 04:05:18 +00:00
product(bool, TraceSpilling, false, DIAGNOSTIC, \
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 spilling") \
\
8243208: Clean up JVMFlag implementation Reviewed-by: dholmes, coleenp, gziemski
2020-09-11 04:05:18 +00:00
product(bool, TraceTypeProfile, false, DIAGNOSTIC, \
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") \
\
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") \
8122937: [JEP 245] Validate JVM Command-Line Flag Arguments Validate the arguments to all JVM command-line flags so as to avoid crashes, and ensure that appropriate error messages are displayed when they are invalid. Reviewed-by: ddmitriev, dholmes, kbarrett, drwhite, brutisso, coleenp
2015-06-18 14:39:38 -05:00
range(0, 100) \
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
\
8243208: Clean up JVMFlag implementation Reviewed-by: dholmes, coleenp, gziemski
2020-09-11 04:05:18 +00:00
product(bool, PrintIntrinsics, false, DIAGNOSTIC, \
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
"prints attempted and successful inlining of intrinsics") \
\
develop(bool, StressReflectiveCode, false, \
"Use inexact types at allocations, etc., to test reflection") \
\
8243208: Clean up JVMFlag implementation Reviewed-by: dholmes, coleenp, gziemski
2020-09-11 04:05:18 +00:00
product(bool, DebugInlinedCalls, true, DIAGNOSTIC, \
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
"If false, restricts profiled locations to the root method only") \
\
notproduct(bool, VerifyLoopOptimizations, false, \
"verify major loop optimizations") \
\
8243208: Clean up JVMFlag implementation Reviewed-by: dholmes, coleenp, gziemski
2020-09-11 04:05:18 +00:00
product(bool, ProfileDynamicTypes, true, DIAGNOSTIC, \
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
"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)") \
8078554: Compiler: implement ranges (optionally constraints) for those flags that have them missing Add range check or constraint where necessary. Reviewed-by: roland, thartmann
2015-10-09 14:21:26 +02:00
range(1, max_intx) \
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
\
product(intx, AliasLevel, 3, \
"0 for no aliasing, 1 for oop/field/static/array split, " \
"2 for class split, 3 for unique instances") \
8122937: [JEP 245] Validate JVM Command-Line Flag Arguments Validate the arguments to all JVM command-line flags so as to avoid crashes, and ensure that appropriate error messages are displayed when they are invalid. Reviewed-by: ddmitriev, dholmes, kbarrett, drwhite, brutisso, coleenp
2015-06-18 14:39:38 -05:00
range(0, 3) \
8130459: Add additional validation after heap creation Some PLAB related flags' validation can happen after heap creation. Introduced additional stage of validation check. Reviewed-by: coleenp, dholmes, kbarrett, gziemski, ecaspole, ddmitriev
2015-07-27 13:56:26 -07:00
constraint(AliasLevelConstraintFunc,AfterErgo) \
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, 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
\
8235673: [C1, C2] Split inlining control flags Reviewed-by: neliasso, kvn, thartmann
2020-05-18 10:57:16 +02:00
product(intx, MaxInlineLevel, 15, \
"maximum number of nested calls that are inlined by high tier " \
"compiler") \
range(0, max_jint) \
\
product(intx, MaxRecursiveInlineLevel, 1, \
"maximum number of nested recursive calls that are inlined by " \
"high tier compiler") \
range(0, max_jint) \
\
product_pd(intx, InlineSmallCode, \
"Only inline already compiled methods if their code size is " \
"less than this") \
range(0, max_jint) \
\
product(intx, MaxInlineSize, 35, \
"The maximum bytecode size of a method to be inlined by high " \
"tier compiler") \
range(0, max_jint) \
\
product_pd(intx, FreqInlineSize, \
"The maximum bytecode size of a frequent method to be inlined") \
range(0, max_jint) \
\
product(intx, MaxTrivialSize, 6, \
"The maximum bytecode size of a trivial method to be inlined by " \
"high tier compiler") \
range(0, max_jint) \
\
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") \
\
8058148: MaxNodeLimit and LiveNodeCountInliningCutoff Reviewed-by: kvn, roland
2014-11-24 07:29:03 -08:00
product(intx, LiveNodeCountInliningCutoff, 40000, \
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
"max number of live nodes in a method") \
8078554: Compiler: implement ranges (optionally constraints) for those flags that have them missing Add range check or constraint where necessary. Reviewed-by: roland, thartmann
2015-10-09 14:21:26 +02:00
range(0, max_juint / 8) \
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
\
8243208: Clean up JVMFlag implementation Reviewed-by: dholmes, coleenp, gziemski
2020-09-11 04:05:18 +00:00
product(bool, OptimizeExpensiveOps, true, DIAGNOSTIC, \
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
"Find best control for expensive operations") \
8024924: Intrinsify java.lang.Math.addExact Reviewed-by: kvn, twisti
2013-09-27 08:39:19 +02:00
\
8243208: Clean up JVMFlag implementation Reviewed-by: dholmes, coleenp, gziemski
2020-09-11 04:05:18 +00:00
product(bool, UseMathExactIntrinsics, true, DIAGNOSTIC, \
8024069: replace_in_map() should operate on parent maps Type information gets lost because replace_in_map() doesn't update parent maps Reviewed-by: kvn, twisti
2013-10-19 12:16:43 +02:00
"Enables intrinsification of various java.lang.Math functions") \
\
8243208: Clean up JVMFlag implementation Reviewed-by: dholmes, coleenp, gziemski
2020-09-11 04:05:18 +00:00
product(bool, UseCharacterCompareIntrinsics, false, DIAGNOSTIC, \
8213754: PPC64: Add Intrinsics for isDigit/isLowerCase/isUpperCase/isWhitespace Reviewed-by: kvn, rriggs, mdoerr, gromero
2018-12-11 20:31:18 -05:00
"Enables intrinsification of java.lang.Character functions") \
\
8243208: Clean up JVMFlag implementation Reviewed-by: dholmes, coleenp, gziemski
2020-09-11 04:05:18 +00:00
product(bool, UseMultiplyToLenIntrinsic, false, DIAGNOSTIC, \
8055494: Add C2 x86 intrinsic for BigInteger::multiplyToLen() method Add new C2 intrinsic for BigInteger::multiplyToLen() on x86 in 64-bit VM. Reviewed-by: roland
2014-09-02 12:48:45 -07:00
"Enables intrinsification of BigInteger.multiplyToLen()") \
\
8243208: Clean up JVMFlag implementation Reviewed-by: dholmes, coleenp, gziemski
2020-09-11 04:05:18 +00:00
product(bool, UseSquareToLenIntrinsic, false, DIAGNOSTIC, \
8081778: Use Intel x64 CPU instructions for RSA acceleration Add intrinsics for BigInteger squareToLen and mulAdd methods. Reviewed-by: kvn, jrose
2015-06-03 15:02:10 -07:00
"Enables intrinsification of BigInteger.squareToLen()") \
\
8243208: Clean up JVMFlag implementation Reviewed-by: dholmes, coleenp, gziemski
2020-09-11 04:05:18 +00:00
product(bool, UseMulAddIntrinsic, false, DIAGNOSTIC, \
8081778: Use Intel x64 CPU instructions for RSA acceleration Add intrinsics for BigInteger squareToLen and mulAdd methods. Reviewed-by: kvn, jrose
2015-06-03 15:02:10 -07:00
"Enables intrinsification of BigInteger.mulAdd()") \
\
8243208: Clean up JVMFlag implementation Reviewed-by: dholmes, coleenp, gziemski
2020-09-11 04:05:18 +00:00
product(bool, UseMontgomeryMultiplyIntrinsic, false, DIAGNOSTIC, \
8130150: Implement BigInteger.montgomeryMultiply intrinsic Add montgomeryMultiply intrinsics Reviewed-by: kvn
2015-06-16 17:31:53 +01:00
"Enables intrinsification of BigInteger.montgomeryMultiply()") \
\
8243208: Clean up JVMFlag implementation Reviewed-by: dholmes, coleenp, gziemski
2020-09-11 04:05:18 +00:00
product(bool, UseMontgomerySquareIntrinsic, false, DIAGNOSTIC, \
8130150: Implement BigInteger.montgomeryMultiply intrinsic Add montgomeryMultiply intrinsics Reviewed-by: kvn
2015-06-16 17:31:53 +01:00
"Enables intrinsification of BigInteger.montgomerySquare()") \
\
8032633: Enable type speculation by default Enable type speculation Reviewed-by: kvn
2014-03-06 11:11:04 +01:00
product(bool, UseTypeSpeculation, true, \
8029015: PPC64 (part 216): opto: trap based null and range checks On PPC64 use tdi instruction that does a compare and raises SIGTRAP for NULL and range checks. Reviewed-by: kvn
2013-11-27 16:16:21 -08:00
"Speculatively propagate types from profiles") \
\
8243208: Clean up JVMFlag implementation Reviewed-by: dholmes, coleenp, gziemski
2020-09-11 04:05:18 +00:00
product(bool, UseInlineDepthForSpeculativeTypes, true, DIAGNOSTIC, \
8031754: Type speculation should favor profile data from outermost inlined method Favor profile data coming from outer most method Reviewed-by: kvn, twisti
2014-02-28 13:44:16 +01:00
"Carry inline depth of profile point with speculative type " \
"and give priority to profiling from lower inline depth") \
\
8029015: PPC64 (part 216): opto: trap based null and range checks On PPC64 use tdi instruction that does a compare and raises SIGTRAP for NULL and range checks. Reviewed-by: kvn
2013-11-27 16:16:21 -08:00
product_pd(bool, TrapBasedRangeChecks, \
"Generate code for range checks that uses a cmp and trap " \
"instruction raising SIGTRAP. Used on PPC64.") \
6700100: optimize inline_native_clone() for small objects with exact klass Optimize small instance clones as loads/stores Reviewed-by: kvn, iveresov
2014-12-16 13:49:36 +01:00
\
product(intx, ArrayCopyLoadStoreMaxElem, 8, \
"Maximum number of arraycopy elements inlined as a sequence of" \
"loads/stores") \
8078554: Compiler: implement ranges (optionally constraints) for those flags that have them missing Add range check or constraint where necessary. Reviewed-by: roland, thartmann
2015-10-09 14:21:26 +02:00
range(0, max_intx) \
6700100: optimize inline_native_clone() for small objects with exact klass Optimize small instance clones as loads/stores Reviewed-by: kvn, iveresov
2014-12-16 13:49:36 +01:00
\
develop(bool, StressArrayCopyMacroNode, false, \
8129847: Compiling methods generated by Nashorn triggers high memory usage in C2 Add a new compiler phase, PhaseRenumberLive, that renumbers live nodes. Reviewed-by: kvn, thartmann, vlivanov, shade
2015-12-01 08:05:10 +01:00
"Perform ArrayCopy load/store replacement during IGVN only") \
\
develop(bool, RenumberLiveNodes, true, \
"Renumber live nodes") \
8186027: C2: loop strip mining Reviewed-by: kvn, neliasso
2017-11-28 11:59:16 +01:00
\
product(uintx, LoopStripMiningIter, 0, \
"Number of iterations in strip mined loop") \
range(0, max_juint) \
8241486: G1/Z give warning when using LoopStripMiningIter and turn off LoopStripMiningIter (0) Reviewed-by: thartmann, kvn
2020-08-21 17:41:57 +02:00
constraint(LoopStripMiningIterConstraintFunc, AfterErgo) \
8186027: C2: loop strip mining Reviewed-by: kvn, neliasso
2017-11-28 11:59:16 +01:00
\
product(uintx, LoopStripMiningIterShortLoop, 0, \
"Loop with fewer iterations are not strip mined") \
range(0, max_juint) \
8203197: C2: consider all paths in loop body for loop predication Reviewed-by: kvn, neliasso
2018-06-19 09:08:39 +02:00
\
product(bool, UseProfiledLoopPredicate, true, \
8238691: C2: turn subtype check into macro node Reviewed-by: vlivanov, thartmann
2020-02-14 10:31:34 +01:00
"Move predicates out of loops based on profiling data") \
\
8243208: Clean up JVMFlag implementation Reviewed-by: dholmes, coleenp, gziemski
2020-09-11 04:05:18 +00:00
product(bool, ExpandSubTypeCheckAtParseTime, false, DIAGNOSTIC, \
"Do not use subtype check macro node")
// end of C2_FLAGS
Initial load
2007-12-01 00:00:00 +00:00
8216167: Update include guards to reflect correct directories Use script and some manual fixup to fix directores names in include guards. Reviewed-by: lfoltan, eosterlund, kbarrett
2019-01-10 15:13:51 -05:00
#endif // SHARE_OPTO_C2_GLOBALS_HPP
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