--- old/src/hotspot/cpu/sparc/globals_sparc.hpp 2020-05-20 18:08:55.208350174 -0700 +++ /dev/null 2020-03-09 18:57:19.455001459 -0700 @@ -1,129 +0,0 @@ -/* - * Copyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved. - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This code is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 only, as - * published by the Free Software Foundation. - * - * This code is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * version 2 for more details (a copy is included in the LICENSE file that - * accompanied this code). - * - * You should have received a copy of the GNU General Public License version - * 2 along with this work; if not, write to the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. - * - * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA - * or visit www.oracle.com if you need additional information or have any - * questions. - * - */ - -#ifndef CPU_SPARC_GLOBALS_SPARC_HPP -#define CPU_SPARC_GLOBALS_SPARC_HPP - -#include "utilities/globalDefinitions.hpp" -#include "utilities/macros.hpp" - -// Sets the default values for platform dependent flags used by the runtime system. -// (see globals.hpp) - -// For sparc we do not do call backs when a thread is in the interpreter, because the -// interpreter dispatch needs at least two instructions - first to load the dispatch address -// in a register, and second to jmp. The swapping of the dispatch table may occur _after_ -// the load of the dispatch address and hence the jmp would still go to the location -// according to the prior table. So, we let the thread continue and let it block by itself. -define_pd_global(bool, DontYieldALot, true); // yield no more than 100 times per second - -define_pd_global(bool, ImplicitNullChecks, true); // Generate code for implicit null checks -define_pd_global(bool, TrapBasedNullChecks, false); // Not needed on sparc. -define_pd_global(bool, UncommonNullCast, true); // Uncommon-trap NULLs passed to check cast - -define_pd_global(uintx, CodeCacheSegmentSize, 64 TIERED_ONLY(+64)); // Tiered compilation has large code-entry alignment. -define_pd_global(intx, CodeEntryAlignment, 32); -// The default setting 16/16 seems to work best. -// (For _228_jack 16/16 is 2% better than 4/4, 16/4, 32/32, 32/16, or 16/32.) -define_pd_global(intx, OptoLoopAlignment, 16); // = 4*wordSize -define_pd_global(intx, InlineFrequencyCount, 50); // we can use more inlining on the SPARC -define_pd_global(intx, InlineSmallCode, 1500); - -#define DEFAULT_STACK_YELLOW_PAGES (2) -#define DEFAULT_STACK_RED_PAGES (1) -#define DEFAULT_STACK_RESERVED_PAGES (SOLARIS_ONLY(1) NOT_SOLARIS(0)) - -define_pd_global(intx, CompilerThreadStackSize, 1024); -define_pd_global(intx, ThreadStackSize, 1024); -define_pd_global(intx, VMThreadStackSize, 1024); -#define DEFAULT_STACK_SHADOW_PAGES (20 DEBUG_ONLY(+2)) - -#define MIN_STACK_YELLOW_PAGES DEFAULT_STACK_YELLOW_PAGES -#define MIN_STACK_RED_PAGES DEFAULT_STACK_RED_PAGES -#define MIN_STACK_SHADOW_PAGES DEFAULT_STACK_SHADOW_PAGES -#define MIN_STACK_RESERVED_PAGES (0) - -define_pd_global(intx, StackYellowPages, DEFAULT_STACK_YELLOW_PAGES); -define_pd_global(intx, StackRedPages, DEFAULT_STACK_RED_PAGES); -define_pd_global(intx, StackShadowPages, DEFAULT_STACK_SHADOW_PAGES); -define_pd_global(intx, StackReservedPages, DEFAULT_STACK_RESERVED_PAGES); - -define_pd_global(bool, RewriteBytecodes, true); -define_pd_global(bool, RewriteFrequentPairs, true); - -define_pd_global(bool, PreserveFramePointer, false); - -define_pd_global(uintx, TypeProfileLevel, 111); - -define_pd_global(bool, CompactStrings, true); - -define_pd_global(intx, InitArrayShortSize, 8*BytesPerLong); - -#define ARCH_FLAGS(develop, \ - product, \ - diagnostic, \ - experimental, \ - notproduct, \ - range, \ - constraint) \ - \ - product(intx, UseVIS, 99, \ - "Highest supported VIS instructions set on SPARC") \ - range(0, 99) \ - \ - product(bool, UseCBCond, false, \ - "Use compare and branch instruction on SPARC") \ - \ - product(bool, UseMPMUL, false, \ - "Use multi-precision multiply instruction (mpmul) on SPARC") \ - \ - product(bool, UseBlockZeroing, false, \ - "Use special cpu instructions for block zeroing") \ - \ - product(intx, BlockZeroingLowLimit, 2048, \ - "Minimum size in bytes when block zeroing will be used") \ - range(1, max_jint) \ - \ - product(bool, UseBlockCopy, false, \ - "Use special cpu instructions for block copy") \ - \ - product(intx, BlockCopyLowLimit, 2048, \ - "Minimum size in bytes when block copy will be used") \ - range(1, max_jint) \ - \ - product(bool, UseNiagaraInstrs, false, \ - "Use Niagara-efficient instruction subset") \ - \ - develop(bool, UseCASForSwap, false, \ - "Do not use swap instructions, but only CAS (in a loop) on SPARC")\ - \ - product(uintx, ArraycopySrcPrefetchDistance, 0, \ - "Distance to prefetch source array in arraycopy") \ - constraint(ArraycopySrcPrefetchDistanceConstraintFunc, AfterErgo) \ - \ - product(uintx, ArraycopyDstPrefetchDistance, 0, \ - "Distance to prefetch destination array in arraycopy") \ - constraint(ArraycopyDstPrefetchDistanceConstraintFunc, AfterErgo) \ - -#endif // CPU_SPARC_GLOBALS_SPARC_HPP