/* * Copyright (c) 2016, 2020, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2016, 2018 SAP SE. 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. *
*/
define_pd_global(uintx, CodeCacheSegmentSize, 256); // This shall be at least 32 for proper branch target alignment. // Ideally, this is 256 (cache line size). This keeps code end data // on separate lines. But we reduced it to 64 since 256 increased // code size significantly by padding nops between IVC and second UEP.
define_pd_global(intx, CodeEntryAlignment, 64);
define_pd_global(intx, OptoLoopAlignment, 2);
define_pd_global(intx, InlineSmallCode, 2000);
#define DEFAULT_STACK_YELLOW_PAGES (2) #define DEFAULT_STACK_RED_PAGES (1) // Java_java_net_SocketOutputStream_socketWrite0() uses a 64k buffer on the // stack. To pass stack overflow tests we need 20 shadow pages. #define DEFAULT_STACK_SHADOW_PAGES (20 DEBUG_ONLY(+4)) #define DEFAULT_STACK_RESERVED_PAGES (1)
// 8146801 (Short Array Allocation): No performance work done here yet.
define_pd_global(intx, InitArrayShortSize, 1*BytesPerLong);
#define ARCH_FLAGS(develop, \
product, \
notproduct, \
range, \
constraint) \
\ /* Reoptimize code-sequences of calls at runtime, e.g. replace an */ \ /* indirect call by a direct call. */ \
product(bool, ReoptimizeCallSequences, true, DIAGNOSTIC, \ "Reoptimize code-sequences of calls at runtime.") \
\
product(bool, UseByteReverseInstruction, true, DIAGNOSTIC, \ "Use byte reverse instruction.") \
\
product(bool, ExpandLoadingBaseDecode, true, DIAGNOSTIC, \ "Expand the assembler instruction required to load the base from " \ "DecodeN nodes during matching.") \
product(bool, ExpandLoadingBaseDecode_NN, true, DIAGNOSTIC, \ "Expand the assembler instruction required to load the base from " \ "DecodeN_NN nodes during matching.") \
product(bool, ExpandLoadingBaseEncode, true, DIAGNOSTIC, \ "Expand the assembler instruction required to load the base from " \ "EncodeP nodes during matching.") \
product(bool, ExpandLoadingBaseEncode_NN, true, DIAGNOSTIC, \ "Expand the assembler instruction required to load the base from " \ "EncodeP_NN nodes during matching.") \
\ /* Seems to pay off with 2 pages already. */ \
product(size_t, MVCLEThreshold, +2*(4*K), DIAGNOSTIC, \ "Threshold above which page-aligned MVCLE copy/init is used.") \
\
product(bool, PreferLAoverADD, false, DIAGNOSTIC, \ "Use LA/LAY instructions over ADD instructions (z/Architecture).") \
\
develop(bool, ZapEmptyStackFields, false, "Write 0x0101... to empty stack" \ " fields. Use this to ease stack debugging.") \
\
product(bool, TraceTraps, false, DIAGNOSTIC, \ "Trace all traps the signal handler handles.")
// end of ARCH_FLAGS
#endif// CPU_S390_GLOBALS_S390_HPP
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet)
¤
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung ist noch experimentell.
