| author | kvn |
| Wed, 04 May 2011 13:12:42 -0700 | |
| changeset 9446 | 748a37b25d10 |
| parent 8921 | 14bfe81f2a9d |
| child 10565 | dc90c239f4ec |
| permissions | -rw-r--r-- |
| 1 | 1 |
/* |
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* Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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||
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#ifndef SHARE_VM_OPTO_C2_GLOBALS_HPP |
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#define SHARE_VM_OPTO_C2_GLOBALS_HPP |
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||
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#include "runtime/globals.hpp" |
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#ifdef TARGET_ARCH_x86 |
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# include "c2_globals_x86.hpp" |
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#endif |
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#ifdef TARGET_ARCH_sparc |
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# include "c2_globals_sparc.hpp" |
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#endif |
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#ifdef TARGET_ARCH_arm |
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# include "c2_globals_arm.hpp" |
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#endif |
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#ifdef TARGET_OS_FAMILY_linux |
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# include "c2_globals_linux.hpp" |
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#endif |
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#ifdef TARGET_OS_FAMILY_solaris |
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# include "c2_globals_solaris.hpp" |
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#endif |
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#ifdef TARGET_OS_FAMILY_windows |
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# include "c2_globals_windows.hpp" |
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#endif |
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||
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// |
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// Defines all globals flags used by the server compiler. |
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// |
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||
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#define C2_FLAGS(develop, develop_pd, product, product_pd, diagnostic, experimental, notproduct) \ |
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\ |
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notproduct(intx, CompileZapFirst, 0, \ |
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"If +ZapDeadCompiledLocals, " \ |
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"skip this many before compiling in zap calls") \ |
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\ |
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notproduct(intx, CompileZapLast, -1, \ |
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"If +ZapDeadCompiledLocals, " \ |
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"compile this many after skipping (incl. skip count, -1 = all)") \ |
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\ |
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notproduct(intx, ZapDeadCompiledLocalsFirst, 0, \ |
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"If +ZapDeadCompiledLocals, " \ |
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"skip this many before really doing it") \ |
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\ |
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notproduct(intx, ZapDeadCompiledLocalsLast, -1, \ |
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"If +ZapDeadCompiledLocals, " \ |
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"do this many after skipping (incl. skip count, -1 = all)") \ |
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\ |
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develop(intx, OptoPrologueNops, 0, \ |
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"Insert this many extra nop instructions " \ |
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"in the prologue of every nmethod") \ |
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\ |
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product_pd(intx, InteriorEntryAlignment, \ |
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"Code alignment for interior entry points " \ |
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"in generated code (in bytes)") \ |
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\ |
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product(intx, MaxLoopPad, (OptoLoopAlignment-1), \ |
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"Align a loop if padding size in bytes is less or equal to this value") \ |
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\ |
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product(intx, NumberOfLoopInstrToAlign, 4, \ |
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"Number of first instructions in a loop to align") \ |
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\ |
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notproduct(intx, IndexSetWatch, 0, \ |
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"Trace all operations on this IndexSet (-1 means all, 0 none)") \ |
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\ |
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develop(intx, OptoNodeListSize, 4, \ |
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"Starting allocation size of Node_List data structures") \ |
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\ |
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develop(intx, OptoBlockListSize, 8, \ |
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"Starting allocation size of Block_List data structures") \ |
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\ |
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develop(intx, OptoPeepholeAt, -1, \ |
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"Apply peephole optimizations to this peephole rule") \ |
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\ |
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notproduct(bool, PrintIdeal, false, \ |
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"Print ideal graph before code generation") \ |
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\ |
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notproduct(bool, PrintOpto, false, \ |
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"Print compiler2 attempts") \ |
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\ |
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notproduct(bool, PrintOptoInlining, false, \ |
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"Print compiler2 inlining decisions") \ |
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\ |
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notproduct(bool, VerifyOpto, false, \ |
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"Apply more time consuming verification during compilation") \ |
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\ |
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notproduct(bool, VerifyOptoOopOffsets, false, \ |
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"Check types of base addresses in field references") \ |
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\ |
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develop(bool, IdealizedNumerics, false, \ |
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"Check performance difference allowing FP " \ |
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"associativity and commutativity...") \ |
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\ |
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develop(bool, OptoBreakpoint, false, \ |
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"insert breakpoint at method entry") \ |
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\ |
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notproduct(bool, OptoBreakpointOSR, false, \ |
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"insert breakpoint at osr method entry") \ |
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\ |
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notproduct(intx, BreakAtNode, 0, \ |
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"Break at construction of this Node (either _idx or _debug_idx)") \ |
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\ |
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notproduct(bool, OptoBreakpointC2R, false, \ |
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"insert breakpoint at runtime stub entry") \ |
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\ |
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notproduct(bool, OptoNoExecute, false, \ |
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"Attempt to parse and compile but do not execute generated code") \ |
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\ |
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notproduct(bool, PrintOptoStatistics, false, \ |
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"Print New compiler statistics") \ |
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\ |
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notproduct(bool, PrintOptoAssembly, false, \ |
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"Print New compiler assembly output") \ |
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\ |
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develop_pd(bool, OptoPeephole, \ |
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"Apply peephole optimizations after register allocation") \ |
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\ |
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develop(bool, OptoRemoveUseless, true, \ |
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"Remove useless nodes after parsing") \ |
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\ |
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notproduct(bool, PrintFrameConverterAssembly, false, \ |
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"Print New compiler assembly output for frame converters") \ |
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\ |
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notproduct(bool, PrintParseStatistics, false, \ |
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"Print nodes, transforms and new values made per bytecode parsed")\ |
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\ |
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notproduct(bool, PrintOptoPeephole, false, \ |
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"Print New compiler peephole replacements") \ |
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\ |
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develop(bool, PrintCFGBlockFreq, false, \ |
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"Print CFG block freqencies") \ |
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\ |
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develop(bool, TraceOptoParse, false, \ |
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"Trace bytecode parse and control-flow merge") \ |
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\ |
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product_pd(intx, LoopUnrollLimit, \ |
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"Unroll loop bodies with node count less than this") \ |
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\ |
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product(intx, LoopUnrollMin, 4, \ |
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"Minimum number of unroll loop bodies before checking progress" \ |
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"of rounds of unroll,optimize,..") \ |
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\ |
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develop(intx, UnrollLimitForProfileCheck, 1, \ |
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"Don't use profile_trip_cnt() to restrict unrolling until " \ |
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"unrolling would push the number of unrolled iterations above " \ |
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"UnrollLimitForProfileCheck. A higher value allows more " \ |
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"unrolling. Zero acts as a very large value." ) \ |
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\ |
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product(intx, MultiArrayExpandLimit, 6, \ |
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"Maximum number of individual allocations in an inline-expanded " \ |
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"multianewarray instruction") \ |
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\ |
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notproduct(bool, TraceProfileTripCount, false, \ |
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"Trace profile loop trip count information") \ |
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\ |
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product(bool, UseLoopPredicate, true, \ |
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"Generate a predicate to select fast/slow loop versions") \ |
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\ |
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develop(bool, TraceLoopPredicate, false, \ |
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"Trace generation of loop predicates") \ |
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\ |
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develop(bool, TraceLoopOpts, false, \ |
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"Trace executed loop optimizations") \ |
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\ |
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diagnostic(bool, LoopLimitCheck, true, \ |
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"Generate a loop limits check for overflow") \ |
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\ |
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develop(bool, TraceLoopLimitCheck, false, \ |
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"Trace generation of loop limits checks") \ |
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\ |
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diagnostic(bool, RangeLimitCheck, true, \ |
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"Additional overflow checks during range check elimination") \ |
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\ |
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develop(bool, TraceRangeLimitCheck, false, \ |
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"Trace additional overflow checks in RCE") \ |
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\ |
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diagnostic(bool, UnrollLimitCheck, true, \ |
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"Additional overflow checks during loop unroll") \ |
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\ |
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product(bool, OptimizeFill, false, \ |
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"convert fill/copy loops into intrinsic") \ |
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\ |
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develop(bool, TraceOptimizeFill, false, \ |
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"print detailed information about fill conversion") \ |
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\ |
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develop(bool, OptoCoalesce, true, \ |
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"Use Conservative Copy Coalescing in the Register Allocator") \ |
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\ |
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develop(bool, UseUniqueSubclasses, true, \ |
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"Narrow an abstract reference to the unique concrete subclass") \ |
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\ |
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develop(bool, UseExactTypes, true, \ |
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"Use exact types to eliminate array store checks and v-calls") \ |
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\ |
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product(intx, TrackedInitializationLimit, 50, \ |
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"When initializing fields, track up to this many words") \ |
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\ |
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product(bool, ReduceFieldZeroing, true, \ |
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"When initializing fields, try to avoid needless zeroing") \ |
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\ |
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product(bool, ReduceInitialCardMarks, true, \ |
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"When initializing fields, try to avoid needless card marks") \ |
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\ |
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product(bool, ReduceBulkZeroing, true, \ |
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"When bulk-initializing, try to avoid needless zeroing") \ |
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\ |
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product(bool, UseFPUForSpilling, false, \ |
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"Spill integer registers to FPU instead of stack when possible") \ |
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\ |
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develop_pd(intx, RegisterCostAreaRatio, \ |
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"Spill selection in reg allocator: scale area by (X/64K) before " \ |
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"adding cost") \ |
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\ |
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develop_pd(bool, UseCISCSpill, \ |
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"Use ADLC supplied cisc instructions during allocation") \ |
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\ |
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notproduct(bool, VerifyGraphEdges , false, \ |
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"Verify Bi-directional Edges") \ |
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\ |
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notproduct(bool, VerifyDUIterators, true, \ |
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"Verify the safety of all iterations of Bi-directional Edges") \ |
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\ |
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notproduct(bool, VerifyHashTableKeys, true, \ |
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"Verify the immutability of keys in the VN hash tables") \ |
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\ |
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notproduct(bool, VerifyRegisterAllocator , false, \ |
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"Verify Register Allocator") \ |
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\ |
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develop_pd(intx, FLOATPRESSURE, \ |
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"Number of float LRG's that constitute high register pressure") \ |
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\ |
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develop_pd(intx, INTPRESSURE, \ |
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"Number of integer LRG's that constitute high register pressure") \ |
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\ |
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notproduct(bool, TraceOptoPipelining, false, \ |
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"Trace pipelining information") \ |
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\ |
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notproduct(bool, TraceOptoOutput, false, \ |
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"Trace pipelining information") \ |
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\ |
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product_pd(bool, OptoScheduling, \ |
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"Instruction Scheduling after register allocation") \ |
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\ |
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product(bool, PartialPeelLoop, true, \ |
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"Partial peel (rotate) loops") \ |
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\ |
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product(intx, PartialPeelNewPhiDelta, 0, \ |
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"Additional phis that can be created by partial peeling") \ |
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\ |
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notproduct(bool, TracePartialPeeling, false, \ |
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"Trace partial peeling (loop rotation) information") \ |
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\ |
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product(bool, PartialPeelAtUnsignedTests, true, \ |
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"Partial peel at unsigned tests if no signed test exists") \ |
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\ |
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product(bool, ReassociateInvariants, true, \ |
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"Enable reassociation of expressions with loop invariants.") \ |
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\ |
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product(bool, LoopUnswitching, true, \ |
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"Enable loop unswitching (a form of invariant test hoisting)") \ |
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\ |
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notproduct(bool, TraceLoopUnswitching, false, \ |
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"Trace loop unswitching") \ |
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\ |
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product(bool, UseSuperWord, true, \ |
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"Transform scalar operations into superword operations") \ |
|
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\ |
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develop(bool, SuperWordRTDepCheck, false, \ |
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"Enable runtime dependency checks.") \ |
|
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\ |
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product(bool, TraceSuperWord, false, \ |
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"Trace superword transforms") \ |
|
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\ |
|
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product_pd(bool, OptoBundling, \ |
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"Generate nops to fill i-cache lines") \ |
|
297 |
\ |
|
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product_pd(intx, ConditionalMoveLimit, \ |
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"Limit of ops to make speculative when using CMOVE") \ |
|
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\ |
|
301 |
/* Set BranchOnRegister == false. See 4965987. */ \ |
|
302 |
product(bool, BranchOnRegister, false, \ |
|
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"Use Sparc V9 branch-on-register opcodes") \ |
|
304 |
\ |
|
305 |
develop(bool, SparcV9RegsHiBitsZero, true, \ |
|
306 |
"Assume Sparc V9 I&L registers on V8+ systems are zero-extended") \ |
|
307 |
\ |
|
| 7433 | 308 |
product(bool, UseRDPCForConstantTableBase, false, \ |
309 |
"Use Sparc RDPC instruction for the constant table base.") \ |
|
310 |
\ |
|
| 1 | 311 |
develop(intx, PrintIdealGraphLevel, 0, \ |
312 |
"Print ideal graph to XML file / network interface. " \ |
|
313 |
"By default attempts to connect to the visualizer on a socket.") \ |
|
314 |
\ |
|
315 |
develop(intx, PrintIdealGraphPort, 4444, \ |
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316 |
"Ideal graph printer to network port") \ |
|
317 |
\ |
|
| 1553 | 318 |
notproduct(ccstr, PrintIdealGraphAddress, "127.0.0.1", \ |
| 1 | 319 |
"IP address to connect to visualizer") \ |
320 |
\ |
|
| 1553 | 321 |
notproduct(ccstr, PrintIdealGraphFile, NULL, \ |
| 1 | 322 |
"File to dump ideal graph to. If set overrides the " \ |
323 |
"use of the network") \ |
|
324 |
\ |
|
325 |
product(bool, UseOldInlining, true, \ |
|
326 |
"Enable the 1.3 inlining strategy") \ |
|
327 |
\ |
|
328 |
product(bool, UseBimorphicInlining, true, \ |
|
329 |
"Profiling based inlining for two receivers") \ |
|
330 |
\ |
|
331 |
product(bool, UseOnlyInlinedBimorphic, true, \ |
|
332 |
"Don't use BimorphicInlining if can't inline a second method") \ |
|
333 |
\ |
|
334 |
product(bool, InsertMemBarAfterArraycopy, true, \ |
|
335 |
"Insert memory barrier after arraycopy call") \ |
|
336 |
\ |
|
| 6180 | 337 |
develop(bool, SubsumeLoads, true, \ |
338 |
"Attempt to compile while subsuming loads into machine instructions.") \ |
|
339 |
\ |
|
340 |
develop(bool, StressRecompilation, false, \ |
|
341 |
"Recompile each compiled method without subsuming loads or escape analysis.") \ |
|
342 |
\ |
|
| 1 | 343 |
/* controls for tier 1 compilations */ \ |
344 |
\ |
|
345 |
develop(bool, Tier1CountInvocations, true, \ |
|
346 |
"Generate code, during tier 1, to update invocation counter") \ |
|
347 |
\ |
|
348 |
product(intx, Tier1Inline, false, \ |
|
349 |
"enable inlining during tier 1") \ |
|
350 |
\ |
|
351 |
product(intx, Tier1MaxInlineSize, 8, \ |
|
352 |
"maximum bytecode size of a method to be inlined, during tier 1") \ |
|
353 |
\ |
|
354 |
product(intx, Tier1FreqInlineSize, 35, \ |
|
355 |
"max bytecode size of a frequent method to be inlined, tier 1") \ |
|
356 |
\ |
|
357 |
develop(intx, ImplicitNullCheckThreshold, 3, \ |
|
358 |
"Don't do implicit null checks if NPE's in a method exceeds limit") \ |
|
359 |
\ |
|
360 |
/* controls for loop optimization */ \ |
|
361 |
product(intx, Tier1LoopOptsCount, 0, \ |
|
362 |
"Set level of loop optimization for tier 1 compiles") \ |
|
363 |
\ |
|
364 |
product(intx, LoopOptsCount, 43, \ |
|
365 |
"Set level of loop optimization for tier 1 compiles") \ |
|
366 |
\ |
|
367 |
/* controls for heat-based inlining */ \ |
|
368 |
\ |
|
369 |
develop(intx, NodeCountInliningCutoff, 18000, \ |
|
370 |
"If parser node generation exceeds limit stop inlining") \ |
|
371 |
\ |
|
372 |
develop(intx, NodeCountInliningStep, 1000, \ |
|
373 |
"Target size of warm calls inlined between optimization passes") \ |
|
374 |
\ |
|
375 |
develop(bool, InlineWarmCalls, false, \ |
|
376 |
"Use a heat-based priority queue to govern inlining") \ |
|
377 |
\ |
|
378 |
develop(intx, HotCallCountThreshold, 999999, \ |
|
379 |
"large numbers of calls (per method invocation) force hotness") \ |
|
380 |
\ |
|
381 |
develop(intx, HotCallProfitThreshold, 999999, \ |
|
382 |
"highly profitable inlining opportunities force hotness") \ |
|
383 |
\ |
|
384 |
develop(intx, HotCallTrivialWork, -1, \ |
|
385 |
"trivial execution time (no larger than this) forces hotness") \ |
|
386 |
\ |
|
387 |
develop(intx, HotCallTrivialSize, -1, \ |
|
388 |
"trivial methods (no larger than this) force calls to be hot") \ |
|
389 |
\ |
|
390 |
develop(intx, WarmCallMinCount, -1, \ |
|
391 |
"number of calls (per method invocation) to enable inlining") \ |
|
392 |
\ |
|
393 |
develop(intx, WarmCallMinProfit, -1, \ |
|
394 |
"number of calls (per method invocation) to enable inlining") \ |
|
395 |
\ |
|
396 |
develop(intx, WarmCallMaxWork, 999999, \ |
|
397 |
"execution time of the largest inlinable method") \ |
|
398 |
\ |
|
399 |
develop(intx, WarmCallMaxSize, 999999, \ |
|
400 |
"size of the largest inlinable method") \ |
|
401 |
\ |
|
402 |
product(intx, MaxNodeLimit, 65000, \ |
|
403 |
"Maximum number of nodes") \ |
|
404 |
\ |
|
405 |
product(intx, NodeLimitFudgeFactor, 1000, \ |
|
406 |
"Fudge Factor for certain optimizations") \ |
|
407 |
\ |
|
408 |
product(bool, UseJumpTables, true, \ |
|
409 |
"Use JumpTables instead of a binary search tree for switches") \ |
|
410 |
\ |
|
411 |
product(bool, UseDivMod, true, \ |
|
412 |
"Use combined DivMod instruction if available") \ |
|
413 |
\ |
|
414 |
product(intx, MinJumpTableSize, 18, \ |
|
415 |
"Minimum number of targets in a generated jump table") \ |
|
416 |
\ |
|
417 |
product(intx, MaxJumpTableSize, 65000, \ |
|
418 |
"Maximum number of targets in a generated jump table") \ |
|
419 |
\ |
|
420 |
product(intx, MaxJumpTableSparseness, 5, \ |
|
421 |
"Maximum sparseness for jumptables") \ |
|
422 |
\ |
|
423 |
product(bool, EliminateLocks, true, \ |
|
424 |
"Coarsen locks when possible") \ |
|
425 |
\ |
|
426 |
notproduct(bool, PrintLockStatistics, false, \ |
|
427 |
"Print precise statistics on the dynamic lock usage") \ |
|
428 |
\ |
|
429 |
diagnostic(bool, PrintPreciseBiasedLockingStatistics, false, \ |
|
430 |
"Print per-lock-site statistics of biased locking in JVM") \ |
|
431 |
\ |
|
432 |
notproduct(bool, PrintEliminateLocks, false, \ |
|
433 |
"Print out when locks are eliminated") \ |
|
434 |
\ |
|
|
190
e9a0a9dcd4f6
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
1
diff
changeset
|
435 |
diagnostic(bool, EliminateAutoBox, false, \ |
|
e9a0a9dcd4f6
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
1
diff
changeset
|
436 |
"Private flag to control optimizations for autobox elimination") \ |
|
e9a0a9dcd4f6
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
1
diff
changeset
|
437 |
\ |
|
e9a0a9dcd4f6
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
1
diff
changeset
|
438 |
product(intx, AutoBoxCacheMax, 128, \ |
|
e9a0a9dcd4f6
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
1
diff
changeset
|
439 |
"Sets max value cached by the java.lang.Integer autobox cache") \ |
|
e9a0a9dcd4f6
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
1
diff
changeset
|
440 |
\ |
| 3685 | 441 |
product(bool, DoEscapeAnalysis, true, \ |
| 1 | 442 |
"Perform escape analysis") \ |
443 |
\ |
|
444 |
notproduct(bool, PrintEscapeAnalysis, false, \ |
|
445 |
"Print the results of escape analysis") \ |
|
446 |
\ |
|
447 |
product(bool, EliminateAllocations, true, \ |
|
448 |
"Use escape analysis to eliminate allocations") \ |
|
449 |
\ |
|
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
190
diff
changeset
|
450 |
notproduct(bool, PrintEliminateAllocations, false, \ |
|
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
190
diff
changeset
|
451 |
"Print out when allocations are eliminated") \ |
|
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
190
diff
changeset
|
452 |
\ |
|
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
190
diff
changeset
|
453 |
product(intx, EliminateAllocationArraySizeLimit, 64, \ |
|
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
190
diff
changeset
|
454 |
"Array size (number of elements) limit for scalar replacement") \ |
|
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
190
diff
changeset
|
455 |
\ |
| 2340 | 456 |
product(bool, UseOptoBiasInlining, true, \ |
|
1500
bea9a90f3e8f
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
1498
diff
changeset
|
457 |
"Generate biased locking code in C2 ideal graph") \ |
|
bea9a90f3e8f
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
1498
diff
changeset
|
458 |
\ |
|
4451
dfc03acffc4c
6904191: OptimizeStringConcat should be product instead of experimental
cfang
parents:
4450
diff
changeset
|
459 |
product(bool, OptimizeStringConcat, false, \ |
|
4450
6d700b859b3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
3685
diff
changeset
|
460 |
"Optimize the construction of Strings by StringBuilder") \ |
|
6d700b859b3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
3685
diff
changeset
|
461 |
\ |
|
6d700b859b3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
3685
diff
changeset
|
462 |
notproduct(bool, PrintOptimizeStringConcat, false, \ |
|
6d700b859b3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
3685
diff
changeset
|
463 |
"Print information about transformations performed on Strings") \ |
|
6d700b859b3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
3685
diff
changeset
|
464 |
\ |
|
961
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
953
diff
changeset
|
465 |
product(intx, ValueSearchLimit, 1000, \ |
|
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
953
diff
changeset
|
466 |
"Recursion limit in PhaseMacroExpand::value_from_mem_phi") \ |
|
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
953
diff
changeset
|
467 |
\ |
| 1 | 468 |
product(intx, MaxLabelRootDepth, 1100, \ |
469 |
"Maximum times call Label_Root to prevent stack overflow") \ |
|
|
581
02338c8a1bcf
6701887: JDK7 server VM in endless loop in Node::dominates
kvn
parents:
238
diff
changeset
|
470 |
\ |
|
02338c8a1bcf
6701887: JDK7 server VM in endless loop in Node::dominates
kvn
parents:
238
diff
changeset
|
471 |
diagnostic(intx, DominatorSearchLimit, 1000, \ |
|
02338c8a1bcf
6701887: JDK7 server VM in endless loop in Node::dominates
kvn
parents:
238
diff
changeset
|
472 |
"Iterations limit in Node::dominates") \ |
| 1498 | 473 |
\ |
474 |
product(bool, BlockLayoutByFrequency, true, \ |
|
475 |
"Use edge frequencies to drive block ordering") \ |
|
476 |
\ |
|
477 |
product(intx, BlockLayoutMinDiamondPercentage, 20, \ |
|
478 |
"Miniumum %% of a successor (predecessor) for which block layout "\ |
|
479 |
"a will allow a fork (join) in a single chain") \ |
|
480 |
\ |
|
| 2340 | 481 |
product(bool, BlockLayoutRotateLoops, true, \ |
| 1498 | 482 |
"Allow back branches to be fall throughs in the block layour") \ |
| 1 | 483 |
|
|
4450
6d700b859b3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
3685
diff
changeset
|
484 |
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) |
| 7397 | 485 |
|
486 |
#endif // SHARE_VM_OPTO_C2_GLOBALS_HPP |