rev 8069 : 8164652: aarch32: C1 port

   1 /*
   2  * Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
   3  * Copyright (c) 2014, Red Hat Inc. All rights reserved.
   4  * Copyright (c) 2015, Linaro Ltd. All rights reserved.
   5  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   6  *
   7  * This code is free software; you can redistribute it and/or modify it
   8  * under the terms of the GNU General Public License version 2 only, as
   9  * published by the Free Software Foundation.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  *
  25  */
  26 
  27 #ifndef CPU_AARCH32_VM_GLOBALS_AARCH32_HPP
  28 #define CPU_AARCH32_VM_GLOBALS_AARCH32_HPP
  29 
  30 #include "utilities/globalDefinitions.hpp"
  31 #include "utilities/macros.hpp"
  32 
  33 // Sets the default values for platform dependent flags used by the runtime system.
  34 // (see globals.hpp)
  35 
  36 define_pd_global(bool, ConvertSleepToYield,      true);
  37 define_pd_global(bool, ShareVtableStubs,         true);
  38 define_pd_global(bool, CountInterpCalls,         true);
  39 define_pd_global(bool, NeedsDeoptSuspend,       false); // only register window machines need this
  40 
  41 define_pd_global(bool, ImplicitNullChecks,       true);  // Generate code for implicit null checks
  42 define_pd_global(bool, TrapBasedNullChecks,     false);
  43 define_pd_global(bool, UncommonNullCast,         true);  // Uncommon-trap NULLs past to check cast
  44 
  45 // See 4827828 for this change. There is no globals_core_i486.hpp. I can't
  46 // assign a different value for C2 without touching a number of files. Use
  47 // #ifdef to minimize the change as it's late in Mantis. -- FIXME.
  48 // c1 doesn't have this problem because the fix to 4858033 assures us
  49 // the the vep is aligned at CodeEntryAlignment whereas c2 only aligns
  50 // the uep and the vep doesn't get real alignment but just slops on by
  51 // only assured that the entry instruction meets the 5 byte size requirement.
  52 //#ifdef COMPILER2
  53 //define_pd_global(intx, CodeEntryAlignment,       64);
  54 //#else
  55 define_pd_global(intx, CodeEntryAlignment,       32);
  56 //#endif // COMPILER2
  57 define_pd_global(intx, OptoLoopAlignment,        32);
  58 define_pd_global(intx, InlineFrequencyCount,     100);
  59 
  60 define_pd_global(intx, StackYellowPages, 2);
  61 define_pd_global(intx, StackRedPages, 1);
  62 
  63 define_pd_global(intx, StackShadowPages, 4 DEBUG_ONLY(+5));
  64 
  65 define_pd_global(intx, PreInflateSpin,           10);
  66 
  67 define_pd_global(bool, RewriteBytecodes,     true);
  68 define_pd_global(bool, RewriteFrequentPairs, true);
  69 
  70 define_pd_global(bool, UseMembar,            true);
  71 
  72 define_pd_global(bool, PreserveFramePointer, false);
  73 
  74 // GC Ergo Flags
  75 define_pd_global(uintx, CMSYoungGenPerWorker, 64*M);  // default max size of CMS young gen, per GC worker thread
  76 
  77 define_pd_global(uintx, TypeProfileLevel, 111);
  78 
  79 // FIXME this turned out to be needed for the core build too?
  80 //#if defined(COMPILER1) || defined(COMPILER2)
  81 define_pd_global(intx, InlineSmallCode,          1000);
  82 //#endif
  83 




  84 #define ARCH_FLAGS(develop, product, diagnostic, experimental, notproduct) \
  85                                                                         \
  86   product(bool, NearCpool, true,                                        \
  87          "constant pool is close to instructions")                      \
  88                                                                         \
  89   product(bool, UseBarriersForVolatile, false,                          \
  90           "Use memory barriers to implement volatile accesses")         \
  91   product(bool, TraceTraps, false, "Trace all traps the signal handler")\
  92   product(bool, UseSIMDForMemoryOps, false,                             \
  93       "Use SIMD instructions in generated memory move code")            \
  94   product(bool, UseNeon, false,                                         \
  95           "Use Neon for CRC32 computation")                             \
  96   product(bool, UseCRC32, false,                                        \
  97           "Use CRC32 instructions for CRC32 computation")
  98 
  99 
 100 #endif // CPU_AARCH32_VM_GLOBALS_AARCH32_HPP
--- EOF ---