Wed, 27 Nov 2013 16:16:21 -0800
8029015: PPC64 (part 216): opto: trap based null and range checks
Summary: On PPC64 use tdi instruction that does a compare and raises SIGTRAP for NULL and range checks.
Reviewed-by: kvn
never@1445 | 1 | /* |
twisti@4020 | 2 | * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved. |
twisti@2729 | 3 | * Copyright 2007, 2008, 2009, 2010, 2011 Red Hat, Inc. |
never@1445 | 4 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
never@1445 | 5 | * |
never@1445 | 6 | * This code is free software; you can redistribute it and/or modify it |
never@1445 | 7 | * under the terms of the GNU General Public License version 2 only, as |
never@1445 | 8 | * published by the Free Software Foundation. |
never@1445 | 9 | * |
never@1445 | 10 | * This code is distributed in the hope that it will be useful, but WITHOUT |
never@1445 | 11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
never@1445 | 12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
never@1445 | 13 | * version 2 for more details (a copy is included in the LICENSE file that |
never@1445 | 14 | * accompanied this code). |
never@1445 | 15 | * |
never@1445 | 16 | * You should have received a copy of the GNU General Public License version |
never@1445 | 17 | * 2 along with this work; if not, write to the Free Software Foundation, |
never@1445 | 18 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
never@1445 | 19 | * |
trims@1907 | 20 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 21 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 22 | * questions. |
never@1445 | 23 | * |
never@1445 | 24 | */ |
never@1445 | 25 | |
stefank@2314 | 26 | #ifndef CPU_ZERO_VM_GLOBALS_ZERO_HPP |
stefank@2314 | 27 | #define CPU_ZERO_VM_GLOBALS_ZERO_HPP |
stefank@2314 | 28 | |
stefank@2314 | 29 | #include "utilities/globalDefinitions.hpp" |
stefank@2314 | 30 | #include "utilities/macros.hpp" |
stefank@2314 | 31 | |
never@1445 | 32 | // Set the default values for platform dependent flags used by the |
never@1445 | 33 | // runtime system. See globals.hpp for details of what they do. |
never@1445 | 34 | |
never@1445 | 35 | define_pd_global(bool, ConvertSleepToYield, true); |
never@1445 | 36 | define_pd_global(bool, ShareVtableStubs, true); |
never@1445 | 37 | define_pd_global(bool, CountInterpCalls, true); |
never@1445 | 38 | define_pd_global(bool, NeedsDeoptSuspend, false); |
never@1445 | 39 | |
never@1445 | 40 | define_pd_global(bool, ImplicitNullChecks, true); |
goetz@6490 | 41 | define_pd_global(bool, TrapBasedNullChecks, false); |
never@1445 | 42 | define_pd_global(bool, UncommonNullCast, true); |
never@1445 | 43 | |
never@1445 | 44 | define_pd_global(intx, CodeEntryAlignment, 32); |
twisti@1816 | 45 | define_pd_global(intx, OptoLoopAlignment, 16); |
never@1445 | 46 | define_pd_global(intx, InlineFrequencyCount, 100); |
goetz@6466 | 47 | define_pd_global(intx, InlineSmallCode, 1000 ); |
never@1445 | 48 | define_pd_global(intx, PreInflateSpin, 10); |
never@1445 | 49 | |
never@1445 | 50 | define_pd_global(intx, StackYellowPages, 2); |
never@1445 | 51 | define_pd_global(intx, StackRedPages, 1); |
twisti@1701 | 52 | define_pd_global(intx, StackShadowPages, 5 LP64_ONLY(+1) DEBUG_ONLY(+3)); |
never@1445 | 53 | |
never@1445 | 54 | define_pd_global(bool, RewriteBytecodes, true); |
never@1445 | 55 | define_pd_global(bool, RewriteFrequentPairs, true); |
bobv@2223 | 56 | |
never@3156 | 57 | define_pd_global(bool, UseMembar, true); |
stefank@2314 | 58 | |
twisti@2729 | 59 | // GC Ergo Flags |
tschatzl@5119 | 60 | define_pd_global(uintx, CMSYoungGenPerWorker, 16*M); // default max size of CMS young gen, per GC worker thread |
twisti@4020 | 61 | |
twisti@6039 | 62 | define_pd_global(uintx, TypeProfileLevel, 0); |
twisti@6039 | 63 | |
twisti@4020 | 64 | #define ARCH_FLAGS(develop, product, diagnostic, experimental, notproduct) |
twisti@4020 | 65 | |
stefank@2314 | 66 | #endif // CPU_ZERO_VM_GLOBALS_ZERO_HPP |