hotspot/src/share/vm/utilities/globalDefinitions.hpp
author stefank
Thu, 13 Apr 2017 09:57:51 +0200
changeset 46620 750c6edff33b
parent 46619 a3919f5e8d2b
child 46621 b93c4446e59e
permissions -rw-r--r--
8178500: Replace usages of round_to and round_down with align_up and align_down Reviewed-by: rehn, tschatzl
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/*
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 * Copyright (c) 1997, 2017, 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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#ifndef SHARE_VM_UTILITIES_GLOBALDEFINITIONS_HPP
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#define SHARE_VM_UTILITIES_GLOBALDEFINITIONS_HPP
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#include "utilities/compilerWarnings.hpp"
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#include "utilities/debug.hpp"
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#include "utilities/macros.hpp"
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#include COMPILER_HEADER(utilities/globalDefinitions)
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// Defaults for macros that might be defined per compiler.
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#ifndef NOINLINE
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#define NOINLINE
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#endif
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#ifndef ALWAYSINLINE
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#define ALWAYSINLINE inline
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#endif
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// This file holds all globally used constants & types, class (forward)
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// declarations and a few frequently used utility functions.
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//----------------------------------------------------------------------------------------------------
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// Printf-style formatters for fixed- and variable-width types as pointers and
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// integers.  These are derived from the definitions in inttypes.h.  If the platform
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// doesn't provide appropriate definitions, they should be provided in
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// the compiler-specific definitions file (e.g., globalDefinitions_gcc.hpp)
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#define BOOL_TO_STR(_b_) ((_b_) ? "true" : "false")
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// Format 32-bit quantities.
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#define INT32_FORMAT           "%" PRId32
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#define UINT32_FORMAT          "%" PRIu32
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#define INT32_FORMAT_W(width)  "%" #width PRId32
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#define UINT32_FORMAT_W(width) "%" #width PRIu32
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#define PTR32_FORMAT           "0x%08" PRIx32
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#define PTR32_FORMAT_W(width)  "0x%" #width PRIx32
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// Format 64-bit quantities.
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#define INT64_FORMAT           "%" PRId64
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#define UINT64_FORMAT          "%" PRIu64
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#define UINT64_FORMAT_X        "%" PRIx64
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#define INT64_FORMAT_W(width)  "%" #width PRId64
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#define UINT64_FORMAT_W(width) "%" #width PRIu64
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#define PTR64_FORMAT           "0x%016" PRIx64
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// Format jlong, if necessary
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#ifndef JLONG_FORMAT
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#define JLONG_FORMAT           INT64_FORMAT
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#endif
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#ifndef JULONG_FORMAT
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#define JULONG_FORMAT          UINT64_FORMAT
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#endif
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#ifndef JULONG_FORMAT_X
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#define JULONG_FORMAT_X        UINT64_FORMAT_X
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#endif
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// Format pointers which change size between 32- and 64-bit.
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#ifdef  _LP64
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#define INTPTR_FORMAT "0x%016" PRIxPTR
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#define PTR_FORMAT    "0x%016" PRIxPTR
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#else   // !_LP64
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#define INTPTR_FORMAT "0x%08"  PRIxPTR
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#define PTR_FORMAT    "0x%08"  PRIxPTR
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#endif  // _LP64
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#define INTPTR_FORMAT_W(width)   "%" #width PRIxPTR
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#define SSIZE_FORMAT             "%"   PRIdPTR
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#define SIZE_FORMAT              "%"   PRIuPTR
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#define SIZE_FORMAT_HEX          "0x%" PRIxPTR
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#define SSIZE_FORMAT_W(width)    "%"   #width PRIdPTR
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#define SIZE_FORMAT_W(width)     "%"   #width PRIuPTR
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#define SIZE_FORMAT_HEX_W(width) "0x%" #width PRIxPTR
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#define INTX_FORMAT           "%" PRIdPTR
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#define UINTX_FORMAT          "%" PRIuPTR
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#define INTX_FORMAT_W(width)  "%" #width PRIdPTR
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#define UINTX_FORMAT_W(width) "%" #width PRIuPTR
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//----------------------------------------------------------------------------------------------------
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// Constants
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const int LogBytesPerShort   = 1;
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const int LogBytesPerInt     = 2;
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#ifdef _LP64
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const int LogBytesPerWord    = 3;
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#else
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const int LogBytesPerWord    = 2;
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#endif
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const int LogBytesPerLong    = 3;
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const int BytesPerShort      = 1 << LogBytesPerShort;
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const int BytesPerInt        = 1 << LogBytesPerInt;
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const int BytesPerWord       = 1 << LogBytesPerWord;
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const int BytesPerLong       = 1 << LogBytesPerLong;
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const int LogBitsPerByte     = 3;
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const int LogBitsPerShort    = LogBitsPerByte + LogBytesPerShort;
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const int LogBitsPerInt      = LogBitsPerByte + LogBytesPerInt;
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const int LogBitsPerWord     = LogBitsPerByte + LogBytesPerWord;
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const int LogBitsPerLong     = LogBitsPerByte + LogBytesPerLong;
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const int BitsPerByte        = 1 << LogBitsPerByte;
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const int BitsPerShort       = 1 << LogBitsPerShort;
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const int BitsPerInt         = 1 << LogBitsPerInt;
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const int BitsPerWord        = 1 << LogBitsPerWord;
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const int BitsPerLong        = 1 << LogBitsPerLong;
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const int WordAlignmentMask  = (1 << LogBytesPerWord) - 1;
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const int LongAlignmentMask  = (1 << LogBytesPerLong) - 1;
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const int WordsPerLong       = 2;       // Number of stack entries for longs
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const int oopSize            = sizeof(char*); // Full-width oop
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extern int heapOopSize;                       // Oop within a java object
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const int wordSize           = sizeof(char*);
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const int longSize           = sizeof(jlong);
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const int jintSize           = sizeof(jint);
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const int size_tSize         = sizeof(size_t);
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const int BytesPerOop        = BytesPerWord;  // Full-width oop
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extern int LogBytesPerHeapOop;                // Oop within a java object
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extern int LogBitsPerHeapOop;
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extern int BytesPerHeapOop;
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extern int BitsPerHeapOop;
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const int BitsPerJavaInteger = 32;
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const int BitsPerJavaLong    = 64;
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const int BitsPerSize_t      = size_tSize * BitsPerByte;
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// Size of a char[] needed to represent a jint as a string in decimal.
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const int jintAsStringSize = 12;
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// In fact this should be
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// log2_intptr(sizeof(class JavaThread)) - log2_intptr(64);
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// see os::set_memory_serialize_page()
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#ifdef _LP64
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const int SerializePageShiftCount = 4;
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#else
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const int SerializePageShiftCount = 3;
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#endif
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// An opaque struct of heap-word width, so that HeapWord* can be a generic
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// pointer into the heap.  We require that object sizes be measured in
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// units of heap words, so that that
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//   HeapWord* hw;
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//   hw += oop(hw)->foo();
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// works, where foo is a method (like size or scavenge) that returns the
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// object size.
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class HeapWord {
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  friend class VMStructs;
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 private:
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  char* i;
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#ifndef PRODUCT
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 public:
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  char* value() { return i; }
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#endif
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};
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// Analogous opaque struct for metadata allocated from
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// metaspaces.
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class MetaWord {
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 private:
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  char* i;
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};
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// HeapWordSize must be 2^LogHeapWordSize.
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const int HeapWordSize        = sizeof(HeapWord);
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#ifdef _LP64
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const int LogHeapWordSize     = 3;
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#else
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const int LogHeapWordSize     = 2;
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#endif
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const int HeapWordsPerLong    = BytesPerLong / HeapWordSize;
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const int LogHeapWordsPerLong = LogBytesPerLong - LogHeapWordSize;
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// The larger HeapWordSize for 64bit requires larger heaps
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// for the same application running in 64bit.  See bug 4967770.
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// The minimum alignment to a heap word size is done.  Other
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// parts of the memory system may require additional alignment
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// and are responsible for those alignments.
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#ifdef _LP64
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#define ScaleForWordSize(x) align_down_((x) * 13 / 10, HeapWordSize)
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#else
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#define ScaleForWordSize(x) (x)
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#endif
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// The minimum number of native machine words necessary to contain "byte_size"
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// bytes.
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inline size_t heap_word_size(size_t byte_size) {
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  return (byte_size + (HeapWordSize-1)) >> LogHeapWordSize;
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}
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//-------------------------------------------
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// Constant for jlong (standardized by C++11)
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// Build a 64bit integer constant
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#define CONST64(x)  (x ## LL)
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#define UCONST64(x) (x ## ULL)
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const jlong min_jlong = CONST64(0x8000000000000000);
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const jlong max_jlong = CONST64(0x7fffffffffffffff);
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const size_t K                  = 1024;
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const size_t M                  = K*K;
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const size_t G                  = M*K;
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const size_t HWperKB            = K / sizeof(HeapWord);
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// Constants for converting from a base unit to milli-base units.  For
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// example from seconds to milliseconds and microseconds
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const int MILLIUNITS    = 1000;         // milli units per base unit
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const int MICROUNITS    = 1000000;      // micro units per base unit
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const int NANOUNITS     = 1000000000;   // nano units per base unit
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const jlong NANOSECS_PER_SEC      = CONST64(1000000000);
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const jint  NANOSECS_PER_MILLISEC = 1000000;
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inline const char* proper_unit_for_byte_size(size_t s) {
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#ifdef _LP64
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  if (s >= 10*G) {
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    return "G";
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  }
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#endif
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  if (s >= 10*M) {
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    return "M";
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  } else if (s >= 10*K) {
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    return "K";
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  } else {
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    return "B";
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  }
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}
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template <class T>
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inline T byte_size_in_proper_unit(T s) {
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#ifdef _LP64
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  if (s >= 10*G) {
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    return (T)(s/G);
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  }
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#endif
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  if (s >= 10*M) {
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    return (T)(s/M);
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  } else if (s >= 10*K) {
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    return (T)(s/K);
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  } else {
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    return s;
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  }
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}
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inline const char* exact_unit_for_byte_size(size_t s) {
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#ifdef _LP64
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  if (s >= G && (s % G) == 0) {
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    return "G";
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  }
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#endif
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  if (s >= M && (s % M) == 0) {
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    return "M";
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  }
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  if (s >= K && (s % K) == 0) {
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    return "K";
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  }
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  return "B";
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}
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inline size_t byte_size_in_exact_unit(size_t s) {
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#ifdef _LP64
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  if (s >= G && (s % G) == 0) {
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    return s / G;
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  }
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#endif
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  if (s >= M && (s % M) == 0) {
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    return s / M;
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  }
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  if (s >= K && (s % K) == 0) {
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    return s / K;
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  }
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  return s;
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}
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//----------------------------------------------------------------------------------------------------
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// VM type definitions
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// intx and uintx are the 'extended' int and 'extended' unsigned int types;
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// they are 32bit wide on a 32-bit platform, and 64bit wide on a 64bit platform.
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typedef intptr_t  intx;
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typedef uintptr_t uintx;
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const intx  min_intx  = (intx)1 << (sizeof(intx)*BitsPerByte-1);
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const intx  max_intx  = (uintx)min_intx - 1;
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const uintx max_uintx = (uintx)-1;
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// Table of values:
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//      sizeof intx         4               8
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// min_intx             0x80000000      0x8000000000000000
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// max_intx             0x7FFFFFFF      0x7FFFFFFFFFFFFFFF
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// max_uintx            0xFFFFFFFF      0xFFFFFFFFFFFFFFFF
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typedef unsigned int uint;   NEEDS_CLEANUP
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//----------------------------------------------------------------------------------------------------
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// Java type definitions
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// All kinds of 'plain' byte addresses
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typedef   signed char s_char;
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typedef unsigned char u_char;
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typedef u_char*       address;
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typedef uintptr_t     address_word; // unsigned integer which will hold a pointer
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                                    // except for some implementations of a C++
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                                    // linkage pointer to function. Should never
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                                    // need one of those to be placed in this
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                                    // type anyway.
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//  Utility functions to "portably" (?) bit twiddle pointers
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//  Where portable means keep ANSI C++ compilers quiet
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inline address       set_address_bits(address x, int m)       { return address(intptr_t(x) | m); }
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inline address       clear_address_bits(address x, int m)     { return address(intptr_t(x) & ~m); }
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//  Utility functions to "portably" make cast to/from function pointers.
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inline address_word  mask_address_bits(address x, int m)      { return address_word(x) & m; }
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inline address_word  castable_address(address x)              { return address_word(x) ; }
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inline address_word  castable_address(void* x)                { return address_word(x) ; }
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// Pointer subtraction.
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// The idea here is to avoid ptrdiff_t, which is signed and so doesn't have
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// the range we might need to find differences from one end of the heap
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// to the other.
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// A typical use might be:
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//     if (pointer_delta(end(), top()) >= size) {
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//       // enough room for an object of size
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//       ...
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// and then additions like
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//       ... top() + size ...
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// are safe because we know that top() is at least size below end().
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inline size_t pointer_delta(const volatile void* left,
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                            const volatile void* right,
1
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                            size_t element_size) {
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  return (((uintptr_t) left) - ((uintptr_t) right)) / element_size;
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}
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1
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// A version specialized for HeapWord*'s.
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inline size_t pointer_delta(const HeapWord* left, const HeapWord* right) {
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  return pointer_delta(left, right, sizeof(HeapWord));
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}
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882756847a04 6964458: Reimplement class meta-data storage to use native memory
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// A version specialized for MetaWord*'s.
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inline size_t pointer_delta(const MetaWord* left, const MetaWord* right) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
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  return pointer_delta(left, right, sizeof(MetaWord));
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   377
}
1
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   378
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//
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   380
// ANSI C++ does not allow casting from one pointer type to a function pointer
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   381
// directly without at best a warning. This macro accomplishes it silently
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   382
// In every case that is present at this point the value be cast is a pointer
36581
8d65a7db1582 6787054: Par compact - remove code that clears source_region
jwilhelm
parents: 35898
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   383
// to a C linkage function. In some case the type used for the cast reflects
1
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parents:
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   384
// that linkage and a picky compiler would not complain. In other cases because
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   385
// there is no convenient place to place a typedef with extern C linkage (i.e
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   386
// a platform dependent header file) it doesn't. At this point no compiler seems
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   387
// picky enough to catch these instances (which are few). It is possible that
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parents:
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   388
// using templates could fix these for all cases. This use of templates is likely
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parents:
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   389
// so far from the middle of the road that it is likely to be problematic in
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parents:
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   390
// many C++ compilers.
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   391
//
37442
942637261b21 8151322: Implement os::set_native_thread_name() on Solaris
dholmes
parents: 37267
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   392
#define CAST_TO_FN_PTR(func_type, value) (reinterpret_cast<func_type>(value))
1
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   393
#define CAST_FROM_FN_PTR(new_type, func_ptr) ((new_type)((address_word)(func_ptr)))
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   394
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   395
// Unsigned byte types for os and stream.hpp
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   396
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   397
// Unsigned one, two, four and eigth byte quantities used for describing
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   398
// the .class file format. See JVM book chapter 4.
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   399
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parents:
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   400
typedef jubyte  u1;
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parents:
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   401
typedef jushort u2;
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   402
typedef juint   u4;
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   403
typedef julong  u8;
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parents:
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   404
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   405
const jubyte  max_jubyte  = (jubyte)-1;  // 0xFF       largest jubyte
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   406
const jushort max_jushort = (jushort)-1; // 0xFFFF     largest jushort
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parents:
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   407
const juint   max_juint   = (juint)-1;   // 0xFFFFFFFF largest juint
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parents:
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   408
const julong  max_julong  = (julong)-1;  // 0xFF....FF largest julong
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parents:
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   409
11480
1bf714e8adb4 7115199: Add event tracing hooks and Java Flight Recorder infrastructure
phh
parents: 11251
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   410
typedef jbyte  s1;
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phh
parents: 11251
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   411
typedef jshort s2;
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phh
parents: 11251
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   412
typedef jint   s4;
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phh
parents: 11251
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   413
typedef jlong  s8;
1bf714e8adb4 7115199: Add event tracing hooks and Java Flight Recorder infrastructure
phh
parents: 11251
diff changeset
   414
37510
cf066fe4531b 8133051: Concurrent refinement threads may be activated and deactivated at random
kbarrett
parents: 37462
diff changeset
   415
const jbyte min_jbyte = -(1 << 7);       // smallest jbyte
cf066fe4531b 8133051: Concurrent refinement threads may be activated and deactivated at random
kbarrett
parents: 37462
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   416
const jbyte max_jbyte = (1 << 7) - 1;    // largest jbyte
cf066fe4531b 8133051: Concurrent refinement threads may be activated and deactivated at random
kbarrett
parents: 37462
diff changeset
   417
const jshort min_jshort = -(1 << 15);    // smallest jshort
cf066fe4531b 8133051: Concurrent refinement threads may be activated and deactivated at random
kbarrett
parents: 37462
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   418
const jshort max_jshort = (1 << 15) - 1; // largest jshort
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kbarrett
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   419
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kbarrett
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   420
const jint min_jint = (jint)1 << (sizeof(jint)*BitsPerByte-1); // 0x80000000 == smallest jint
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kbarrett
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   421
const jint max_jint = (juint)min_jint - 1;                     // 0x7FFFFFFF == largest jint
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1
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//----------------------------------------------------------------------------------------------------
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// JVM spec restrictions
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   425
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   426
const int max_method_code_size = 64*K - 1;  // JVM spec, 2nd ed. section 4.8.1 (p.134)
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   427
20405
3321f6b16639 8003420: NPG: make new GC root for pd_set
tschatzl
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   428
// Default ProtectionDomainCacheSize values
3321f6b16639 8003420: NPG: make new GC root for pd_set
tschatzl
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   429
3321f6b16639 8003420: NPG: make new GC root for pd_set
tschatzl
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diff changeset
   430
const int defaultProtectionDomainCacheSize = NOT_LP64(137) LP64_ONLY(2017);
1
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   431
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   432
//----------------------------------------------------------------------------------------------------
17022
584161d608a5 8009928: PSR:PERF Increase default string table size
hseigel
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diff changeset
   433
// Default and minimum StringTableSize values
14487
9a40ad461ee9 7122219: Passed StringTableSize value not verified
hseigel
parents: 13969
diff changeset
   434
17022
584161d608a5 8009928: PSR:PERF Increase default string table size
hseigel
parents: 16694
diff changeset
   435
const int defaultStringTableSize = NOT_LP64(1009) LP64_ONLY(60013);
20405
3321f6b16639 8003420: NPG: make new GC root for pd_set
tschatzl
parents: 19546
diff changeset
   436
const int minimumStringTableSize = 1009;
14487
9a40ad461ee9 7122219: Passed StringTableSize value not verified
hseigel
parents: 13969
diff changeset
   437
20393
0675c0224a5a 8019375: Internal symbol table size should be tunable.
kevinw
parents: 20282
diff changeset
   438
const int defaultSymbolTableSize = 20011;
0675c0224a5a 8019375: Internal symbol table size should be tunable.
kevinw
parents: 20282
diff changeset
   439
const int minimumSymbolTableSize = 1009;
0675c0224a5a 8019375: Internal symbol table size should be tunable.
kevinw
parents: 20282
diff changeset
   440
14487
9a40ad461ee9 7122219: Passed StringTableSize value not verified
hseigel
parents: 13969
diff changeset
   441
9a40ad461ee9 7122219: Passed StringTableSize value not verified
hseigel
parents: 13969
diff changeset
   442
//----------------------------------------------------------------------------------------------------
1
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parents:
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   443
// HotSwap - for JVMTI   aka Class File Replacement and PopFrame
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parents:
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   444
//
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duke
parents:
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   445
// Determines whether on-the-fly class replacement and frame popping are enabled.
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parents:
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   446
489c9b5090e2 Initial load
duke
parents:
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   447
#define HOTSWAP
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parents:
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   448
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parents:
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   449
//----------------------------------------------------------------------------------------------------
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parents:
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   450
// Object alignment, in units of HeapWords.
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parents:
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   451
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   452
// Minimum is max(BytesPerLong, BytesPerDouble, BytesPerOop) / HeapWordSize, so jlong, jdouble and
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duke
parents:
diff changeset
   453
// reference fields can be naturally aligned.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   454
5694
1e0532a6abff 6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents: 5076
diff changeset
   455
extern int MinObjAlignment;
1e0532a6abff 6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents: 5076
diff changeset
   456
extern int MinObjAlignmentInBytes;
1e0532a6abff 6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents: 5076
diff changeset
   457
extern int MinObjAlignmentInBytesMask;
1
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parents:
diff changeset
   458
5694
1e0532a6abff 6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents: 5076
diff changeset
   459
extern int LogMinObjAlignment;
1e0532a6abff 6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents: 5076
diff changeset
   460
extern int LogMinObjAlignmentInBytes;
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 202
diff changeset
   461
13969
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   462
const int LogKlassAlignmentInBytes = 3;
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   463
const int LogKlassAlignment        = LogKlassAlignmentInBytes - LogHeapWordSize;
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   464
const int KlassAlignmentInBytes    = 1 << LogKlassAlignmentInBytes;
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   465
const int KlassAlignment           = KlassAlignmentInBytes / HeapWordSize;
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   466
28372
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 27471
diff changeset
   467
// Maximal size of heap where unscaled compression can be used. Also upper bound
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 27471
diff changeset
   468
// for heap placement: 4GB.
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 27471
diff changeset
   469
const  uint64_t UnscaledOopHeapMax = (uint64_t(max_juint) + 1);
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 27471
diff changeset
   470
// Maximal size of heap where compressed oops can be used. Also upper bound for heap
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 27471
diff changeset
   471
// placement for zero based compression algorithm: UnscaledOopHeapMax << LogMinObjAlignmentInBytes.
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 27471
diff changeset
   472
extern uint64_t OopEncodingHeapMax;
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 27471
diff changeset
   473
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 27471
diff changeset
   474
// Maximal size of compressed class space. Above this limit compression is not possible.
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 27471
diff changeset
   475
// Also upper bound for placement of zero based class space. (Class space is further limited
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 27471
diff changeset
   476
// to be < 3G, see arguments.cpp.)
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 27471
diff changeset
   477
const  uint64_t KlassEncodingMetaspaceMax = (uint64_t(max_juint) + 1) << LogKlassAlignmentInBytes;
13969
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   478
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   479
// Machine dependent stuff
489c9b5090e2 Initial load
duke
parents:
diff changeset
   480
29180
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 27471
diff changeset
   481
// The maximum size of the code cache.  Can be overridden by targets.
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 27471
diff changeset
   482
#define CODE_CACHE_SIZE_LIMIT (2*G)
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 27471
diff changeset
   483
// Allow targets to reduce the default size of the code cache.
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 27471
diff changeset
   484
#define CODE_CACHE_DEFAULT_LIMIT CODE_CACHE_SIZE_LIMIT
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 27471
diff changeset
   485
40010
e32d5e545789 8161258: Simplify including platform files.
goetz
parents: 38144
diff changeset
   486
#include CPU_HEADER(globalDefinitions)
7397
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6459
diff changeset
   487
22868
7f6eb436873b 8029101: PPC64 (part 211): ordering of Independent Reads of Independent Writes
goetz
parents: 22851
diff changeset
   488
// To assure the IRIW property on processors that are not multiple copy
7f6eb436873b 8029101: PPC64 (part 211): ordering of Independent Reads of Independent Writes
goetz
parents: 22851
diff changeset
   489
// atomic, sync instructions must be issued between volatile reads to
7f6eb436873b 8029101: PPC64 (part 211): ordering of Independent Reads of Independent Writes
goetz
parents: 22851
diff changeset
   490
// assure their ordering, instead of after volatile stores.
7f6eb436873b 8029101: PPC64 (part 211): ordering of Independent Reads of Independent Writes
goetz
parents: 22851
diff changeset
   491
// (See "A Tutorial Introduction to the ARM and POWER Relaxed Memory Models"
7f6eb436873b 8029101: PPC64 (part 211): ordering of Independent Reads of Independent Writes
goetz
parents: 22851
diff changeset
   492
// by Luc Maranget, Susmit Sarkar and Peter Sewell, INRIA/Cambridge)
7f6eb436873b 8029101: PPC64 (part 211): ordering of Independent Reads of Independent Writes
goetz
parents: 22851
diff changeset
   493
#ifdef CPU_NOT_MULTIPLE_COPY_ATOMIC
7f6eb436873b 8029101: PPC64 (part 211): ordering of Independent Reads of Independent Writes
goetz
parents: 22851
diff changeset
   494
const bool support_IRIW_for_not_multiple_copy_atomic_cpu = true;
7f6eb436873b 8029101: PPC64 (part 211): ordering of Independent Reads of Independent Writes
goetz
parents: 22851
diff changeset
   495
#else
7f6eb436873b 8029101: PPC64 (part 211): ordering of Independent Reads of Independent Writes
goetz
parents: 22851
diff changeset
   496
const bool support_IRIW_for_not_multiple_copy_atomic_cpu = false;
7f6eb436873b 8029101: PPC64 (part 211): ordering of Independent Reads of Independent Writes
goetz
parents: 22851
diff changeset
   497
#endif
7f6eb436873b 8029101: PPC64 (part 211): ordering of Independent Reads of Independent Writes
goetz
parents: 22851
diff changeset
   498
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   499
// The byte alignment to be used by Arena::Amalloc.  See bugid 4169348.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   500
// Note: this value must be a power of 2
489c9b5090e2 Initial load
duke
parents:
diff changeset
   501
489c9b5090e2 Initial load
duke
parents:
diff changeset
   502
#define ARENA_AMALLOC_ALIGNMENT (2*BytesPerWord)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   503
489c9b5090e2 Initial load
duke
parents:
diff changeset
   504
// Signed variants of alignment helpers.  There are two versions of each, a macro
489c9b5090e2 Initial load
duke
parents:
diff changeset
   505
// for use in places like enum definitions that require compile-time constant
489c9b5090e2 Initial load
duke
parents:
diff changeset
   506
// expressions and a function for all other places so as to get type checking.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   507
46617
0330c5fc49ce 8178495: Bug in the align_size_up_ macro
stefank
parents: 46565
diff changeset
   508
// Using '(what) & ~align_mask(alignment)' to align 'what' down is broken when
0330c5fc49ce 8178495: Bug in the align_size_up_ macro
stefank
parents: 46565
diff changeset
   509
// 'alignment' is an unsigned int and 'what' is a wider type. The & operation
0330c5fc49ce 8178495: Bug in the align_size_up_ macro
stefank
parents: 46565
diff changeset
   510
// will widen the inverted mask, and not sign extend it, leading to a mask with
0330c5fc49ce 8178495: Bug in the align_size_up_ macro
stefank
parents: 46565
diff changeset
   511
// zeros in the most significant bits. The use of align_mask_widened() solves
0330c5fc49ce 8178495: Bug in the align_size_up_ macro
stefank
parents: 46565
diff changeset
   512
// this problem.
0330c5fc49ce 8178495: Bug in the align_size_up_ macro
stefank
parents: 46565
diff changeset
   513
#define align_mask(alignment) ((alignment) - 1)
0330c5fc49ce 8178495: Bug in the align_size_up_ macro
stefank
parents: 46565
diff changeset
   514
#define widen_to_type_of(what, type_carrier) (true ? (what) : (type_carrier))
0330c5fc49ce 8178495: Bug in the align_size_up_ macro
stefank
parents: 46565
diff changeset
   515
#define align_mask_widened(alignment, type_carrier) widen_to_type_of(align_mask(alignment), (type_carrier))
0330c5fc49ce 8178495: Bug in the align_size_up_ macro
stefank
parents: 46565
diff changeset
   516
46619
a3919f5e8d2b 8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents: 46618
diff changeset
   517
#define align_down_(size, alignment) ((size) & ~align_mask_widened((alignment), (size)))
46617
0330c5fc49ce 8178495: Bug in the align_size_up_ macro
stefank
parents: 46565
diff changeset
   518
46619
a3919f5e8d2b 8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents: 46618
diff changeset
   519
#define align_up_(size, alignment) (align_down_((size) + align_mask(alignment), (alignment)))
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   520
46619
a3919f5e8d2b 8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents: 46618
diff changeset
   521
#define is_aligned_(size, alignment) ((size) == (align_up_(size, alignment)))
19546
f6b7c9e96ea3 8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents: 19320
diff changeset
   522
46620
750c6edff33b 8178500: Replace usages of round_to and round_down with align_up and align_down
stefank
parents: 46619
diff changeset
   523
// Temporary declaration until this file has been restructured.
750c6edff33b 8178500: Replace usages of round_to and round_down with align_up and align_down
stefank
parents: 46619
diff changeset
   524
template <typename T>
750c6edff33b 8178500: Replace usages of round_to and round_down with align_up and align_down
stefank
parents: 46619
diff changeset
   525
bool is_power_of_2_t(T x) {
750c6edff33b 8178500: Replace usages of round_to and round_down with align_up and align_down
stefank
parents: 46619
diff changeset
   526
  return (x != T(0)) && ((x & (x - 1)) == T(0));
750c6edff33b 8178500: Replace usages of round_to and round_down with align_up and align_down
stefank
parents: 46619
diff changeset
   527
}
750c6edff33b 8178500: Replace usages of round_to and round_down with align_up and align_down
stefank
parents: 46619
diff changeset
   528
46618
d503911aa948 8178489: Make align functions more type safe and consistent
stefank
parents: 46617
diff changeset
   529
// Helpers to align sizes and check for alignment
19546
f6b7c9e96ea3 8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents: 19320
diff changeset
   530
46618
d503911aa948 8178489: Make align functions more type safe and consistent
stefank
parents: 46617
diff changeset
   531
template <typename T, typename A>
46619
a3919f5e8d2b 8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents: 46618
diff changeset
   532
inline T align_up(T size, A alignment) {
46620
750c6edff33b 8178500: Replace usages of round_to and round_down with align_up and align_down
stefank
parents: 46619
diff changeset
   533
  assert(is_power_of_2_t(alignment), "must be a power of 2: " UINT64_FORMAT, (uint64_t)alignment);
750c6edff33b 8178500: Replace usages of round_to and round_down with align_up and align_down
stefank
parents: 46619
diff changeset
   534
750c6edff33b 8178500: Replace usages of round_to and round_down with align_up and align_down
stefank
parents: 46619
diff changeset
   535
  T ret = align_up_(size, alignment);
750c6edff33b 8178500: Replace usages of round_to and round_down with align_up and align_down
stefank
parents: 46619
diff changeset
   536
  assert(is_aligned_(ret, alignment), "must be aligned: " UINT64_FORMAT, (uint64_t)ret);
750c6edff33b 8178500: Replace usages of round_to and round_down with align_up and align_down
stefank
parents: 46619
diff changeset
   537
750c6edff33b 8178500: Replace usages of round_to and round_down with align_up and align_down
stefank
parents: 46619
diff changeset
   538
  return ret;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   539
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   540
46618
d503911aa948 8178489: Make align functions more type safe and consistent
stefank
parents: 46617
diff changeset
   541
template <typename T, typename A>
46619
a3919f5e8d2b 8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents: 46618
diff changeset
   542
inline T align_down(T size, A alignment) {
46620
750c6edff33b 8178500: Replace usages of round_to and round_down with align_up and align_down
stefank
parents: 46619
diff changeset
   543
  assert(is_power_of_2_t(alignment), "must be a power of 2: " UINT64_FORMAT, (uint64_t)alignment);
750c6edff33b 8178500: Replace usages of round_to and round_down with align_up and align_down
stefank
parents: 46619
diff changeset
   544
750c6edff33b 8178500: Replace usages of round_to and round_down with align_up and align_down
stefank
parents: 46619
diff changeset
   545
  T ret = align_down_(size, alignment);
750c6edff33b 8178500: Replace usages of round_to and round_down with align_up and align_down
stefank
parents: 46619
diff changeset
   546
  assert(is_aligned_(ret, alignment), "must be aligned: " UINT64_FORMAT, (uint64_t)ret);
750c6edff33b 8178500: Replace usages of round_to and round_down with align_up and align_down
stefank
parents: 46619
diff changeset
   547
750c6edff33b 8178500: Replace usages of round_to and round_down with align_up and align_down
stefank
parents: 46619
diff changeset
   548
  return ret;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   549
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   550
46618
d503911aa948 8178489: Make align functions more type safe and consistent
stefank
parents: 46617
diff changeset
   551
template <typename T, typename A>
46619
a3919f5e8d2b 8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents: 46618
diff changeset
   552
inline bool is_aligned(T size, A alignment) {
46620
750c6edff33b 8178500: Replace usages of round_to and round_down with align_up and align_down
stefank
parents: 46619
diff changeset
   553
  assert(is_power_of_2_t(alignment), "must be a power of 2: " UINT64_FORMAT, (uint64_t)alignment);
750c6edff33b 8178500: Replace usages of round_to and round_down with align_up and align_down
stefank
parents: 46619
diff changeset
   554
46619
a3919f5e8d2b 8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents: 46618
diff changeset
   555
  return is_aligned_(size, alignment);
46618
d503911aa948 8178489: Make align functions more type safe and consistent
stefank
parents: 46617
diff changeset
   556
}
19285
0a3b3f115402 8022880: False sharing between PSPromotionManager instances
stefank
parents: 18743
diff changeset
   557
46618
d503911aa948 8178489: Make align functions more type safe and consistent
stefank
parents: 46617
diff changeset
   558
// Align down with a lower bound. If the aligning results in 0, return 'alignment'.
d503911aa948 8178489: Make align functions more type safe and consistent
stefank
parents: 46617
diff changeset
   559
template <typename T, typename A>
46619
a3919f5e8d2b 8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents: 46618
diff changeset
   560
inline T align_down_bounded(T size, A alignment) {
a3919f5e8d2b 8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents: 46618
diff changeset
   561
  A aligned_size = align_down(size, alignment);
46618
d503911aa948 8178489: Make align functions more type safe and consistent
stefank
parents: 46617
diff changeset
   562
  return aligned_size > 0 ? aligned_size : alignment;
19546
f6b7c9e96ea3 8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents: 19320
diff changeset
   563
}
f6b7c9e96ea3 8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents: 19320
diff changeset
   564
46618
d503911aa948 8178489: Make align functions more type safe and consistent
stefank
parents: 46617
diff changeset
   565
// Helpers to align pointers and check for alignment.
d503911aa948 8178489: Make align functions more type safe and consistent
stefank
parents: 46617
diff changeset
   566
d503911aa948 8178489: Make align functions more type safe and consistent
stefank
parents: 46617
diff changeset
   567
template <typename T, typename A>
46619
a3919f5e8d2b 8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents: 46618
diff changeset
   568
inline T* align_up(T* ptr, A alignment) {
a3919f5e8d2b 8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents: 46618
diff changeset
   569
  return (T*)align_up((uintptr_t)ptr, alignment);
19546
f6b7c9e96ea3 8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents: 19320
diff changeset
   570
}
f6b7c9e96ea3 8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents: 19320
diff changeset
   571
46618
d503911aa948 8178489: Make align functions more type safe and consistent
stefank
parents: 46617
diff changeset
   572
template <typename T, typename A>
46619
a3919f5e8d2b 8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents: 46618
diff changeset
   573
inline T* align_down(T* ptr, A alignment) {
a3919f5e8d2b 8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents: 46618
diff changeset
   574
  return (T*)align_down((uintptr_t)ptr, alignment);
46618
d503911aa948 8178489: Make align functions more type safe and consistent
stefank
parents: 46617
diff changeset
   575
}
d503911aa948 8178489: Make align functions more type safe and consistent
stefank
parents: 46617
diff changeset
   576
d503911aa948 8178489: Make align functions more type safe and consistent
stefank
parents: 46617
diff changeset
   577
template <typename T, typename A>
46619
a3919f5e8d2b 8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents: 46618
diff changeset
   578
inline bool is_aligned(T* ptr, A alignment) {
a3919f5e8d2b 8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents: 46618
diff changeset
   579
  return is_aligned((uintptr_t)ptr, alignment);
40669
252f9d8272af 8157904: Atomic::cmpxchg for jbyte is missing a fence on initial failure
dholmes
parents: 40093
diff changeset
   580
}
252f9d8272af 8157904: Atomic::cmpxchg for jbyte is missing a fence on initial failure
dholmes
parents: 40093
diff changeset
   581
35898
ddc274f0052f 8145628: hotspot metadata classes shouldn't use HeapWordSize or heap related macros like align_object_size
coleenp
parents: 35529
diff changeset
   582
// Align metaspace objects by rounding up to natural word boundary
46618
d503911aa948 8178489: Make align functions more type safe and consistent
stefank
parents: 46617
diff changeset
   583
template <typename T>
d503911aa948 8178489: Make align functions more type safe and consistent
stefank
parents: 46617
diff changeset
   584
inline T align_metadata_size(T size) {
46619
a3919f5e8d2b 8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents: 46618
diff changeset
   585
  return align_up(size, 1);
35898
ddc274f0052f 8145628: hotspot metadata classes shouldn't use HeapWordSize or heap related macros like align_object_size
coleenp
parents: 35529
diff changeset
   586
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   587
35898
ddc274f0052f 8145628: hotspot metadata classes shouldn't use HeapWordSize or heap related macros like align_object_size
coleenp
parents: 35529
diff changeset
   588
// Align objects in the Java Heap by rounding up their size, in HeapWord units.
46618
d503911aa948 8178489: Make align functions more type safe and consistent
stefank
parents: 46617
diff changeset
   589
template <typename T>
d503911aa948 8178489: Make align functions more type safe and consistent
stefank
parents: 46617
diff changeset
   590
inline T align_object_size(T word_size) {
46619
a3919f5e8d2b 8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents: 46618
diff changeset
   591
  return align_up(word_size, MinObjAlignment);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   592
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   593
46618
d503911aa948 8178489: Make align functions more type safe and consistent
stefank
parents: 46617
diff changeset
   594
inline bool is_object_aligned(size_t word_size) {
46619
a3919f5e8d2b 8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents: 46618
diff changeset
   595
  return is_aligned(word_size, MinObjAlignment);
5694
1e0532a6abff 6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents: 5076
diff changeset
   596
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   597
46619
a3919f5e8d2b 8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents: 46618
diff changeset
   598
inline bool is_object_aligned(const void* addr) {
a3919f5e8d2b 8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents: 46618
diff changeset
   599
  return is_aligned(addr, MinObjAlignmentInBytes);
46565
8dcbf532ea00 8178490: Usages of is_object_aligned with pointers are broken
stefank
parents: 46560
diff changeset
   600
}
8dcbf532ea00 8178490: Usages of is_object_aligned with pointers are broken
stefank
parents: 46560
diff changeset
   601
5694
1e0532a6abff 6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents: 5076
diff changeset
   602
// Pad out certain offsets to jlong alignment, in HeapWord units.
46618
d503911aa948 8178489: Make align functions more type safe and consistent
stefank
parents: 46617
diff changeset
   603
template <typename T>
d503911aa948 8178489: Make align functions more type safe and consistent
stefank
parents: 46617
diff changeset
   604
inline T align_object_offset(T offset) {
46619
a3919f5e8d2b 8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents: 46618
diff changeset
   605
  return align_up(offset, HeapWordsPerLong);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   606
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   607
16670
4af09aff4237 8003310: Enable -Wunused-function when compiling with gcc
mikael
parents: 15228
diff changeset
   608
// Clamp an address to be within a specific page
4af09aff4237 8003310: Enable -Wunused-function when compiling with gcc
mikael
parents: 15228
diff changeset
   609
// 1. If addr is on the page it is returned as is
4af09aff4237 8003310: Enable -Wunused-function when compiling with gcc
mikael
parents: 15228
diff changeset
   610
// 2. If addr is above the page_address the start of the *next* page will be returned
4af09aff4237 8003310: Enable -Wunused-function when compiling with gcc
mikael
parents: 15228
diff changeset
   611
// 3. Otherwise, if addr is below the page_address the start of the page will be returned
46618
d503911aa948 8178489: Make align functions more type safe and consistent
stefank
parents: 46617
diff changeset
   612
template <typename T>
d503911aa948 8178489: Make align functions more type safe and consistent
stefank
parents: 46617
diff changeset
   613
inline T* clamp_address_in_page(T* addr, T* page_address, size_t page_size) {
46619
a3919f5e8d2b 8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents: 46618
diff changeset
   614
  if (align_down(addr, page_size) == align_down(page_address, page_size)) {
16670
4af09aff4237 8003310: Enable -Wunused-function when compiling with gcc
mikael
parents: 15228
diff changeset
   615
    // address is in the specified page, just return it as is
4af09aff4237 8003310: Enable -Wunused-function when compiling with gcc
mikael
parents: 15228
diff changeset
   616
    return addr;
4af09aff4237 8003310: Enable -Wunused-function when compiling with gcc
mikael
parents: 15228
diff changeset
   617
  } else if (addr > page_address) {
4af09aff4237 8003310: Enable -Wunused-function when compiling with gcc
mikael
parents: 15228
diff changeset
   618
    // address is above specified page, return start of next page
46619
a3919f5e8d2b 8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents: 46618
diff changeset
   619
    return align_down(page_address, page_size) + page_size;
16670
4af09aff4237 8003310: Enable -Wunused-function when compiling with gcc
mikael
parents: 15228
diff changeset
   620
  } else {
4af09aff4237 8003310: Enable -Wunused-function when compiling with gcc
mikael
parents: 15228
diff changeset
   621
    // address is below specified page, return start of page
46619
a3919f5e8d2b 8178499: Remove _ptr_ and _size_ infixes from align functions
stefank
parents: 46618
diff changeset
   622
    return align_down(page_address, page_size);
16670
4af09aff4237 8003310: Enable -Wunused-function when compiling with gcc
mikael
parents: 15228
diff changeset
   623
  }
4af09aff4237 8003310: Enable -Wunused-function when compiling with gcc
mikael
parents: 15228
diff changeset
   624
}
4af09aff4237 8003310: Enable -Wunused-function when compiling with gcc
mikael
parents: 15228
diff changeset
   625
4af09aff4237 8003310: Enable -Wunused-function when compiling with gcc
mikael
parents: 15228
diff changeset
   626
6067
8bfddf73fc04 6962947: shared TaskQueue statistics
jcoomes
parents: 5702
diff changeset
   627
// The expected size in bytes of a cache line, used to pad data structures.
27165
785a8d56024c 8049737: Contended Locking reorder and cache line bucket
dcubed
parents: 26709
diff changeset
   628
#ifndef DEFAULT_CACHE_LINE_SIZE
785a8d56024c 8049737: Contended Locking reorder and cache line bucket
dcubed
parents: 26709
diff changeset
   629
  #define DEFAULT_CACHE_LINE_SIZE 64
785a8d56024c 8049737: Contended Locking reorder and cache line bucket
dcubed
parents: 26709
diff changeset
   630
#endif
6067
8bfddf73fc04 6962947: shared TaskQueue statistics
jcoomes
parents: 5702
diff changeset
   631
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   632
489c9b5090e2 Initial load
duke
parents:
diff changeset
   633
//----------------------------------------------------------------------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
   634
// Utility macros for compilers
489c9b5090e2 Initial load
duke
parents:
diff changeset
   635
// used to silence compiler warnings
489c9b5090e2 Initial load
duke
parents:
diff changeset
   636
489c9b5090e2 Initial load
duke
parents:
diff changeset
   637
#define Unused_Variable(var) var
489c9b5090e2 Initial load
duke
parents:
diff changeset
   638
489c9b5090e2 Initial load
duke
parents:
diff changeset
   639
489c9b5090e2 Initial load
duke
parents:
diff changeset
   640
//----------------------------------------------------------------------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
   641
// Miscellaneous
489c9b5090e2 Initial load
duke
parents:
diff changeset
   642
489c9b5090e2 Initial load
duke
parents:
diff changeset
   643
// 6302670 Eliminate Hotspot __fabsf dependency
489c9b5090e2 Initial load
duke
parents:
diff changeset
   644
// All fabs() callers should call this function instead, which will implicitly
489c9b5090e2 Initial load
duke
parents:
diff changeset
   645
// convert the operand to double, avoiding a dependency on __fabsf which
489c9b5090e2 Initial load
duke
parents:
diff changeset
   646
// doesn't exist in early versions of Solaris 8.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   647
inline double fabsd(double value) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   648
  return fabs(value);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   649
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   650
34299
3fdfdda0ac1f 8136678: Implement adaptive sizing algorithm for IHOP
tschatzl
parents: 33198
diff changeset
   651
// Returns numerator/denominator as percentage value from 0 to 100. If denominator
3fdfdda0ac1f 8136678: Implement adaptive sizing algorithm for IHOP
tschatzl
parents: 33198
diff changeset
   652
// is zero, return 0.0.
3fdfdda0ac1f 8136678: Implement adaptive sizing algorithm for IHOP
tschatzl
parents: 33198
diff changeset
   653
template<typename T>
3fdfdda0ac1f 8136678: Implement adaptive sizing algorithm for IHOP
tschatzl
parents: 33198
diff changeset
   654
inline double percent_of(T numerator, T denominator) {
3fdfdda0ac1f 8136678: Implement adaptive sizing algorithm for IHOP
tschatzl
parents: 33198
diff changeset
   655
  return denominator != 0 ? (double)numerator / denominator * 100.0 : 0.0;
3fdfdda0ac1f 8136678: Implement adaptive sizing algorithm for IHOP
tschatzl
parents: 33198
diff changeset
   656
}
3fdfdda0ac1f 8136678: Implement adaptive sizing algorithm for IHOP
tschatzl
parents: 33198
diff changeset
   657
25918
79e4c4d9f5c9 8040121: Load variable through a pointer of an incompatible type in src/hotspot/src/share/vm: opto/output.cpp, runtime/sharedRuntimeTrans.cpp, utilities/globalDefinitions_visCPP.hpp
thartmann
parents: 24458
diff changeset
   658
//----------------------------------------------------------------------------------------------------
79e4c4d9f5c9 8040121: Load variable through a pointer of an incompatible type in src/hotspot/src/share/vm: opto/output.cpp, runtime/sharedRuntimeTrans.cpp, utilities/globalDefinitions_visCPP.hpp
thartmann
parents: 24458
diff changeset
   659
// Special casts
79e4c4d9f5c9 8040121: Load variable through a pointer of an incompatible type in src/hotspot/src/share/vm: opto/output.cpp, runtime/sharedRuntimeTrans.cpp, utilities/globalDefinitions_visCPP.hpp
thartmann
parents: 24458
diff changeset
   660
// Cast floats into same-size integers and vice-versa w/o changing bit-pattern
79e4c4d9f5c9 8040121: Load variable through a pointer of an incompatible type in src/hotspot/src/share/vm: opto/output.cpp, runtime/sharedRuntimeTrans.cpp, utilities/globalDefinitions_visCPP.hpp
thartmann
parents: 24458
diff changeset
   661
typedef union {
79e4c4d9f5c9 8040121: Load variable through a pointer of an incompatible type in src/hotspot/src/share/vm: opto/output.cpp, runtime/sharedRuntimeTrans.cpp, utilities/globalDefinitions_visCPP.hpp
thartmann
parents: 24458
diff changeset
   662
  jfloat f;
79e4c4d9f5c9 8040121: Load variable through a pointer of an incompatible type in src/hotspot/src/share/vm: opto/output.cpp, runtime/sharedRuntimeTrans.cpp, utilities/globalDefinitions_visCPP.hpp
thartmann
parents: 24458
diff changeset
   663
  jint i;
79e4c4d9f5c9 8040121: Load variable through a pointer of an incompatible type in src/hotspot/src/share/vm: opto/output.cpp, runtime/sharedRuntimeTrans.cpp, utilities/globalDefinitions_visCPP.hpp
thartmann
parents: 24458
diff changeset
   664
} FloatIntConv;
79e4c4d9f5c9 8040121: Load variable through a pointer of an incompatible type in src/hotspot/src/share/vm: opto/output.cpp, runtime/sharedRuntimeTrans.cpp, utilities/globalDefinitions_visCPP.hpp
thartmann
parents: 24458
diff changeset
   665
79e4c4d9f5c9 8040121: Load variable through a pointer of an incompatible type in src/hotspot/src/share/vm: opto/output.cpp, runtime/sharedRuntimeTrans.cpp, utilities/globalDefinitions_visCPP.hpp
thartmann
parents: 24458
diff changeset
   666
typedef union {
79e4c4d9f5c9 8040121: Load variable through a pointer of an incompatible type in src/hotspot/src/share/vm: opto/output.cpp, runtime/sharedRuntimeTrans.cpp, utilities/globalDefinitions_visCPP.hpp
thartmann
parents: 24458
diff changeset
   667
  jdouble d;
79e4c4d9f5c9 8040121: Load variable through a pointer of an incompatible type in src/hotspot/src/share/vm: opto/output.cpp, runtime/sharedRuntimeTrans.cpp, utilities/globalDefinitions_visCPP.hpp
thartmann
parents: 24458
diff changeset
   668
  jlong l;
79e4c4d9f5c9 8040121: Load variable through a pointer of an incompatible type in src/hotspot/src/share/vm: opto/output.cpp, runtime/sharedRuntimeTrans.cpp, utilities/globalDefinitions_visCPP.hpp
thartmann
parents: 24458
diff changeset
   669
  julong ul;
79e4c4d9f5c9 8040121: Load variable through a pointer of an incompatible type in src/hotspot/src/share/vm: opto/output.cpp, runtime/sharedRuntimeTrans.cpp, utilities/globalDefinitions_visCPP.hpp
thartmann
parents: 24458
diff changeset
   670
} DoubleLongConv;
79e4c4d9f5c9 8040121: Load variable through a pointer of an incompatible type in src/hotspot/src/share/vm: opto/output.cpp, runtime/sharedRuntimeTrans.cpp, utilities/globalDefinitions_visCPP.hpp
thartmann
parents: 24458
diff changeset
   671
79e4c4d9f5c9 8040121: Load variable through a pointer of an incompatible type in src/hotspot/src/share/vm: opto/output.cpp, runtime/sharedRuntimeTrans.cpp, utilities/globalDefinitions_visCPP.hpp
thartmann
parents: 24458
diff changeset
   672
inline jint    jint_cast    (jfloat  x)  { return ((FloatIntConv*)&x)->i; }
79e4c4d9f5c9 8040121: Load variable through a pointer of an incompatible type in src/hotspot/src/share/vm: opto/output.cpp, runtime/sharedRuntimeTrans.cpp, utilities/globalDefinitions_visCPP.hpp
thartmann
parents: 24458
diff changeset
   673
inline jfloat  jfloat_cast  (jint    x)  { return ((FloatIntConv*)&x)->f; }
79e4c4d9f5c9 8040121: Load variable through a pointer of an incompatible type in src/hotspot/src/share/vm: opto/output.cpp, runtime/sharedRuntimeTrans.cpp, utilities/globalDefinitions_visCPP.hpp
thartmann
parents: 24458
diff changeset
   674
79e4c4d9f5c9 8040121: Load variable through a pointer of an incompatible type in src/hotspot/src/share/vm: opto/output.cpp, runtime/sharedRuntimeTrans.cpp, utilities/globalDefinitions_visCPP.hpp
thartmann
parents: 24458
diff changeset
   675
inline jlong   jlong_cast   (jdouble x)  { return ((DoubleLongConv*)&x)->l;  }
79e4c4d9f5c9 8040121: Load variable through a pointer of an incompatible type in src/hotspot/src/share/vm: opto/output.cpp, runtime/sharedRuntimeTrans.cpp, utilities/globalDefinitions_visCPP.hpp
thartmann
parents: 24458
diff changeset
   676
inline julong  julong_cast  (jdouble x)  { return ((DoubleLongConv*)&x)->ul; }
79e4c4d9f5c9 8040121: Load variable through a pointer of an incompatible type in src/hotspot/src/share/vm: opto/output.cpp, runtime/sharedRuntimeTrans.cpp, utilities/globalDefinitions_visCPP.hpp
thartmann
parents: 24458
diff changeset
   677
inline jdouble jdouble_cast (jlong   x)  { return ((DoubleLongConv*)&x)->d;  }
79e4c4d9f5c9 8040121: Load variable through a pointer of an incompatible type in src/hotspot/src/share/vm: opto/output.cpp, runtime/sharedRuntimeTrans.cpp, utilities/globalDefinitions_visCPP.hpp
thartmann
parents: 24458
diff changeset
   678
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   679
inline jint low (jlong value)                    { return jint(value); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   680
inline jint high(jlong value)                    { return jint(value >> 32); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   681
489c9b5090e2 Initial load
duke
parents:
diff changeset
   682
// the fancy casts are a hopefully portable way
489c9b5090e2 Initial load
duke
parents:
diff changeset
   683
// to do unsigned 32 to 64 bit type conversion
489c9b5090e2 Initial load
duke
parents:
diff changeset
   684
inline void set_low (jlong* value, jint low )    { *value &= (jlong)0xffffffff << 32;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   685
                                                   *value |= (jlong)(julong)(juint)low; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   686
489c9b5090e2 Initial load
duke
parents:
diff changeset
   687
inline void set_high(jlong* value, jint high)    { *value &= (jlong)(julong)(juint)0xffffffff;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   688
                                                   *value |= (jlong)high       << 32; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   689
489c9b5090e2 Initial load
duke
parents:
diff changeset
   690
inline jlong jlong_from(jint h, jint l) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   691
  jlong result = 0; // initialization to avoid warning
489c9b5090e2 Initial load
duke
parents:
diff changeset
   692
  set_high(&result, h);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   693
  set_low(&result,  l);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   694
  return result;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   695
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   696
489c9b5090e2 Initial load
duke
parents:
diff changeset
   697
union jlong_accessor {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   698
  jint  words[2];
489c9b5090e2 Initial load
duke
parents:
diff changeset
   699
  jlong long_value;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   700
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   701
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 202
diff changeset
   702
void basic_types_init(); // cannot define here; uses assert
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   703
489c9b5090e2 Initial load
duke
parents:
diff changeset
   704
489c9b5090e2 Initial load
duke
parents:
diff changeset
   705
// NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/runtime/BasicType.java
489c9b5090e2 Initial load
duke
parents:
diff changeset
   706
enum BasicType {
13969
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   707
  T_BOOLEAN     =  4,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   708
  T_CHAR        =  5,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   709
  T_FLOAT       =  6,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   710
  T_DOUBLE      =  7,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   711
  T_BYTE        =  8,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   712
  T_SHORT       =  9,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   713
  T_INT         = 10,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   714
  T_LONG        = 11,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   715
  T_OBJECT      = 12,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   716
  T_ARRAY       = 13,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   717
  T_VOID        = 14,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   718
  T_ADDRESS     = 15,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   719
  T_NARROWOOP   = 16,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   720
  T_METADATA    = 17,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   721
  T_NARROWKLASS = 18,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   722
  T_CONFLICT    = 19, // for stack value type with conflicting contents
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   723
  T_ILLEGAL     = 99
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   724
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   725
202
dc13bf0e5d5d 6633953: type2aelembytes{T_ADDRESS} should be 8 bytes in 64 bit VM
kvn
parents: 1
diff changeset
   726
inline bool is_java_primitive(BasicType t) {
dc13bf0e5d5d 6633953: type2aelembytes{T_ADDRESS} should be 8 bytes in 64 bit VM
kvn
parents: 1
diff changeset
   727
  return T_BOOLEAN <= t && t <= T_LONG;
dc13bf0e5d5d 6633953: type2aelembytes{T_ADDRESS} should be 8 bytes in 64 bit VM
kvn
parents: 1
diff changeset
   728
}
dc13bf0e5d5d 6633953: type2aelembytes{T_ADDRESS} should be 8 bytes in 64 bit VM
kvn
parents: 1
diff changeset
   729
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2131
diff changeset
   730
inline bool is_subword_type(BasicType t) {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2131
diff changeset
   731
  // these guys are processed exactly like T_INT in calling sequences:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2131
diff changeset
   732
  return (t == T_BOOLEAN || t == T_CHAR || t == T_BYTE || t == T_SHORT);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2131
diff changeset
   733
}
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2131
diff changeset
   734
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2131
diff changeset
   735
inline bool is_signed_subword_type(BasicType t) {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2131
diff changeset
   736
  return (t == T_BYTE || t == T_SHORT);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2131
diff changeset
   737
}
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2131
diff changeset
   738
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   739
// Convert a char from a classfile signature to a BasicType
489c9b5090e2 Initial load
duke
parents:
diff changeset
   740
inline BasicType char2type(char c) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   741
  switch( c ) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   742
  case 'B': return T_BYTE;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   743
  case 'C': return T_CHAR;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   744
  case 'D': return T_DOUBLE;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   745
  case 'F': return T_FLOAT;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   746
  case 'I': return T_INT;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   747
  case 'J': return T_LONG;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   748
  case 'S': return T_SHORT;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   749
  case 'Z': return T_BOOLEAN;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   750
  case 'V': return T_VOID;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   751
  case 'L': return T_OBJECT;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   752
  case '[': return T_ARRAY;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   753
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   754
  return T_ILLEGAL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   755
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   756
489c9b5090e2 Initial load
duke
parents:
diff changeset
   757
extern char type2char_tab[T_CONFLICT+1];     // Map a BasicType to a jchar
489c9b5090e2 Initial load
duke
parents:
diff changeset
   758
inline char type2char(BasicType t) { return (uint)t < T_CONFLICT+1 ? type2char_tab[t] : 0; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   759
extern int type2size[T_CONFLICT+1];         // Map BasicType to result stack elements
489c9b5090e2 Initial load
duke
parents:
diff changeset
   760
extern const char* type2name_tab[T_CONFLICT+1];     // Map a BasicType to a jchar
489c9b5090e2 Initial load
duke
parents:
diff changeset
   761
inline const char* type2name(BasicType t) { return (uint)t < T_CONFLICT+1 ? type2name_tab[t] : NULL; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   762
extern BasicType name2type(const char* name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   763
36581
8d65a7db1582 6787054: Par compact - remove code that clears source_region
jwilhelm
parents: 35898
diff changeset
   764
// Auxiliary math routines
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   765
// least common multiple
489c9b5090e2 Initial load
duke
parents:
diff changeset
   766
extern size_t lcm(size_t a, size_t b);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   767
489c9b5090e2 Initial load
duke
parents:
diff changeset
   768
489c9b5090e2 Initial load
duke
parents:
diff changeset
   769
// NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/runtime/BasicType.java
489c9b5090e2 Initial load
duke
parents:
diff changeset
   770
enum BasicTypeSize {
13969
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   771
  T_BOOLEAN_size     = 1,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   772
  T_CHAR_size        = 1,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   773
  T_FLOAT_size       = 1,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   774
  T_DOUBLE_size      = 2,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   775
  T_BYTE_size        = 1,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   776
  T_SHORT_size       = 1,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   777
  T_INT_size         = 1,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   778
  T_LONG_size        = 2,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   779
  T_OBJECT_size      = 1,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   780
  T_ARRAY_size       = 1,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   781
  T_NARROWOOP_size   = 1,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   782
  T_NARROWKLASS_size = 1,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   783
  T_VOID_size        = 0
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   784
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   785
489c9b5090e2 Initial load
duke
parents:
diff changeset
   786
489c9b5090e2 Initial load
duke
parents:
diff changeset
   787
// maps a BasicType to its instance field storage type:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   788
// all sub-word integral types are widened to T_INT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   789
extern BasicType type2field[T_CONFLICT+1];
489c9b5090e2 Initial load
duke
parents:
diff changeset
   790
extern BasicType type2wfield[T_CONFLICT+1];
489c9b5090e2 Initial load
duke
parents:
diff changeset
   791
489c9b5090e2 Initial load
duke
parents:
diff changeset
   792
489c9b5090e2 Initial load
duke
parents:
diff changeset
   793
// size in bytes
489c9b5090e2 Initial load
duke
parents:
diff changeset
   794
enum ArrayElementSize {
13969
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   795
  T_BOOLEAN_aelem_bytes     = 1,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   796
  T_CHAR_aelem_bytes        = 2,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   797
  T_FLOAT_aelem_bytes       = 4,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   798
  T_DOUBLE_aelem_bytes      = 8,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   799
  T_BYTE_aelem_bytes        = 1,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   800
  T_SHORT_aelem_bytes       = 2,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   801
  T_INT_aelem_bytes         = 4,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   802
  T_LONG_aelem_bytes        = 8,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   803
#ifdef _LP64
13969
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   804
  T_OBJECT_aelem_bytes      = 8,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   805
  T_ARRAY_aelem_bytes       = 8,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   806
#else
13969
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   807
  T_OBJECT_aelem_bytes      = 4,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   808
  T_ARRAY_aelem_bytes       = 4,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   809
#endif
13969
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   810
  T_NARROWOOP_aelem_bytes   = 4,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   811
  T_NARROWKLASS_aelem_bytes = 4,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   812
  T_VOID_aelem_bytes        = 0
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   813
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   814
202
dc13bf0e5d5d 6633953: type2aelembytes{T_ADDRESS} should be 8 bytes in 64 bit VM
kvn
parents: 1
diff changeset
   815
extern int _type2aelembytes[T_CONFLICT+1]; // maps a BasicType to nof bytes used by its array element
dc13bf0e5d5d 6633953: type2aelembytes{T_ADDRESS} should be 8 bytes in 64 bit VM
kvn
parents: 1
diff changeset
   816
#ifdef ASSERT
dc13bf0e5d5d 6633953: type2aelembytes{T_ADDRESS} should be 8 bytes in 64 bit VM
kvn
parents: 1
diff changeset
   817
extern int type2aelembytes(BasicType t, bool allow_address = false); // asserts
dc13bf0e5d5d 6633953: type2aelembytes{T_ADDRESS} should be 8 bytes in 64 bit VM
kvn
parents: 1
diff changeset
   818
#else
6433
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 6067
diff changeset
   819
inline int type2aelembytes(BasicType t, bool allow_address = false) { return _type2aelembytes[t]; }
202
dc13bf0e5d5d 6633953: type2aelembytes{T_ADDRESS} should be 8 bytes in 64 bit VM
kvn
parents: 1
diff changeset
   820
#endif
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   821
489c9b5090e2 Initial load
duke
parents:
diff changeset
   822
489c9b5090e2 Initial load
duke
parents:
diff changeset
   823
// JavaValue serves as a container for arbitrary Java values.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   824
489c9b5090e2 Initial load
duke
parents:
diff changeset
   825
class JavaValue {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   826
489c9b5090e2 Initial load
duke
parents:
diff changeset
   827
 public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   828
  typedef union JavaCallValue {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   829
    jfloat   f;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   830
    jdouble  d;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   831
    jint     i;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   832
    jlong    l;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   833
    jobject  h;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   834
  } JavaCallValue;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   835
489c9b5090e2 Initial load
duke
parents:
diff changeset
   836
 private:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   837
  BasicType _type;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   838
  JavaCallValue _value;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   839
489c9b5090e2 Initial load
duke
parents:
diff changeset
   840
 public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   841
  JavaValue(BasicType t = T_ILLEGAL) { _type = t; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   842
489c9b5090e2 Initial load
duke
parents:
diff changeset
   843
  JavaValue(jfloat value) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   844
    _type    = T_FLOAT;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   845
    _value.f = value;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   846
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   847
489c9b5090e2 Initial load
duke
parents:
diff changeset
   848
  JavaValue(jdouble value) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   849
    _type    = T_DOUBLE;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   850
    _value.d = value;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   851
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   852
489c9b5090e2 Initial load
duke
parents:
diff changeset
   853
 jfloat get_jfloat() const { return _value.f; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   854
 jdouble get_jdouble() const { return _value.d; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   855
 jint get_jint() const { return _value.i; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   856
 jlong get_jlong() const { return _value.l; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   857
 jobject get_jobject() const { return _value.h; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   858
 JavaCallValue* get_value_addr() { return &_value; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   859
 BasicType get_type() const { return _type; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   860
489c9b5090e2 Initial load
duke
parents:
diff changeset
   861
 void set_jfloat(jfloat f) { _value.f = f;}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   862
 void set_jdouble(jdouble d) { _value.d = d;}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   863
 void set_jint(jint i) { _value.i = i;}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   864
 void set_jlong(jlong l) { _value.l = l;}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   865
 void set_jobject(jobject h) { _value.h = h;}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   866
 void set_type(BasicType t) { _type = t; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   867
489c9b5090e2 Initial load
duke
parents:
diff changeset
   868
 jboolean get_jboolean() const { return (jboolean) (_value.i);}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   869
 jbyte get_jbyte() const { return (jbyte) (_value.i);}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   870
 jchar get_jchar() const { return (jchar) (_value.i);}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   871
 jshort get_jshort() const { return (jshort) (_value.i);}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   872
489c9b5090e2 Initial load
duke
parents:
diff changeset
   873
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   874
489c9b5090e2 Initial load
duke
parents:
diff changeset
   875
489c9b5090e2 Initial load
duke
parents:
diff changeset
   876
#define STACK_BIAS      0
489c9b5090e2 Initial load
duke
parents:
diff changeset
   877
// V9 Sparc CPU's running in 64 Bit mode use a stack bias of 7ff
489c9b5090e2 Initial load
duke
parents:
diff changeset
   878
// in order to extend the reach of the stack pointer.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   879
#if defined(SPARC) && defined(_LP64)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   880
#undef STACK_BIAS
489c9b5090e2 Initial load
duke
parents:
diff changeset
   881
#define STACK_BIAS      0x7ff
489c9b5090e2 Initial load
duke
parents:
diff changeset
   882
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   883
489c9b5090e2 Initial load
duke
parents:
diff changeset
   884
489c9b5090e2 Initial load
duke
parents:
diff changeset
   885
// TosState describes the top-of-stack state before and after the execution of
489c9b5090e2 Initial load
duke
parents:
diff changeset
   886
// a bytecode or method. The top-of-stack value may be cached in one or more CPU
36581
8d65a7db1582 6787054: Par compact - remove code that clears source_region
jwilhelm
parents: 35898
diff changeset
   887
// registers. The TosState corresponds to the 'machine representation' of this cached
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   888
// value. There's 4 states corresponding to the JAVA types int, long, float & double
489c9b5090e2 Initial load
duke
parents:
diff changeset
   889
// as well as a 5th state in case the top-of-stack value is actually on the top
489c9b5090e2 Initial load
duke
parents:
diff changeset
   890
// of stack (in memory) and thus not cached. The atos state corresponds to the itos
489c9b5090e2 Initial load
duke
parents:
diff changeset
   891
// state when it comes to machine representation but is used separately for (oop)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   892
// type specific operations (e.g. verification code).
489c9b5090e2 Initial load
duke
parents:
diff changeset
   893
489c9b5090e2 Initial load
duke
parents:
diff changeset
   894
enum TosState {         // describes the tos cache contents
489c9b5090e2 Initial load
duke
parents:
diff changeset
   895
  btos = 0,             // byte, bool tos cached
37480
291ee208fb72 8132051: Better byte behavior
coleenp
parents: 37462
diff changeset
   896
  ztos = 1,             // byte, bool tos cached
291ee208fb72 8132051: Better byte behavior
coleenp
parents: 37462
diff changeset
   897
  ctos = 2,             // char tos cached
291ee208fb72 8132051: Better byte behavior
coleenp
parents: 37462
diff changeset
   898
  stos = 3,             // short tos cached
291ee208fb72 8132051: Better byte behavior
coleenp
parents: 37462
diff changeset
   899
  itos = 4,             // int tos cached
291ee208fb72 8132051: Better byte behavior
coleenp
parents: 37462
diff changeset
   900
  ltos = 5,             // long tos cached
291ee208fb72 8132051: Better byte behavior
coleenp
parents: 37462
diff changeset
   901
  ftos = 6,             // float tos cached
291ee208fb72 8132051: Better byte behavior
coleenp
parents: 37462
diff changeset
   902
  dtos = 7,             // double tos cached
291ee208fb72 8132051: Better byte behavior
coleenp
parents: 37462
diff changeset
   903
  atos = 8,             // object cached
291ee208fb72 8132051: Better byte behavior
coleenp
parents: 37462
diff changeset
   904
  vtos = 9,             // tos not cached
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   905
  number_of_states,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   906
  ilgl                  // illegal state: should not occur
489c9b5090e2 Initial load
duke
parents:
diff changeset
   907
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   908
489c9b5090e2 Initial load
duke
parents:
diff changeset
   909
489c9b5090e2 Initial load
duke
parents:
diff changeset
   910
inline TosState as_TosState(BasicType type) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   911
  switch (type) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   912
    case T_BYTE   : return btos;
37480
291ee208fb72 8132051: Better byte behavior
coleenp
parents: 37462
diff changeset
   913
    case T_BOOLEAN: return ztos;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   914
    case T_CHAR   : return ctos;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   915
    case T_SHORT  : return stos;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   916
    case T_INT    : return itos;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   917
    case T_LONG   : return ltos;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   918
    case T_FLOAT  : return ftos;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   919
    case T_DOUBLE : return dtos;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   920
    case T_VOID   : return vtos;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   921
    case T_ARRAY  : // fall through
489c9b5090e2 Initial load
duke
parents:
diff changeset
   922
    case T_OBJECT : return atos;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   923
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   924
  return ilgl;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   925
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   926
2570
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2534
diff changeset
   927
inline BasicType as_BasicType(TosState state) {
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2534
diff changeset
   928
  switch (state) {
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2534
diff changeset
   929
    case btos : return T_BYTE;
37480
291ee208fb72 8132051: Better byte behavior
coleenp
parents: 37462
diff changeset
   930
    case ztos : return T_BOOLEAN;
2570
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2534
diff changeset
   931
    case ctos : return T_CHAR;
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2534
diff changeset
   932
    case stos : return T_SHORT;
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2534
diff changeset
   933
    case itos : return T_INT;
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2534
diff changeset
   934
    case ltos : return T_LONG;
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2534
diff changeset
   935
    case ftos : return T_FLOAT;
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2534
diff changeset
   936
    case dtos : return T_DOUBLE;
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2534
diff changeset
   937
    case atos : return T_OBJECT;
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2534
diff changeset
   938
    case vtos : return T_VOID;
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2534
diff changeset
   939
  }
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2534
diff changeset
   940
  return T_ILLEGAL;
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2534
diff changeset
   941
}
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2534
diff changeset
   942
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   943
489c9b5090e2 Initial load
duke
parents:
diff changeset
   944
// Helper function to convert BasicType info into TosState
489c9b5090e2 Initial load
duke
parents:
diff changeset
   945
// Note: Cannot define here as it uses global constant at the time being.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   946
TosState as_TosState(BasicType type);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   947
489c9b5090e2 Initial load
duke
parents:
diff changeset
   948
489c9b5090e2 Initial load
duke
parents:
diff changeset
   949
// JavaThreadState keeps track of which part of the code a thread is executing in. This
489c9b5090e2 Initial load
duke
parents:
diff changeset
   950
// information is needed by the safepoint code.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   951
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   952
// There are 4 essential states:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   953
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   954
//  _thread_new         : Just started, but not executed init. code yet (most likely still in OS init code)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   955
//  _thread_in_native   : In native code. This is a safepoint region, since all oops will be in jobject handles
489c9b5090e2 Initial load
duke
parents:
diff changeset
   956
//  _thread_in_vm       : Executing in the vm
489c9b5090e2 Initial load
duke
parents:
diff changeset
   957
//  _thread_in_Java     : Executing either interpreted or compiled Java code (or could be in a stub)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   958
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   959
// Each state has an associated xxxx_trans state, which is an intermediate state used when a thread is in
489c9b5090e2 Initial load
duke
parents:
diff changeset
   960
// a transition from one state to another. These extra states makes it possible for the safepoint code to
489c9b5090e2 Initial load
duke
parents:
diff changeset
   961
// handle certain thread_states without having to suspend the thread - making the safepoint code faster.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   962
//
36581
8d65a7db1582 6787054: Par compact - remove code that clears source_region
jwilhelm
parents: 35898
diff changeset
   963
// Given a state, the xxxx_trans state can always be found by adding 1.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   964
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   965
enum JavaThreadState {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   966
  _thread_uninitialized     =  0, // should never happen (missing initialization)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   967
  _thread_new               =  2, // just starting up, i.e., in process of being initialized
489c9b5090e2 Initial load
duke
parents:
diff changeset
   968
  _thread_new_trans         =  3, // corresponding transition state (not used, included for completness)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   969
  _thread_in_native         =  4, // running in native code
489c9b5090e2 Initial load
duke
parents:
diff changeset
   970
  _thread_in_native_trans   =  5, // corresponding transition state
489c9b5090e2 Initial load
duke
parents:
diff changeset
   971
  _thread_in_vm             =  6, // running in VM
489c9b5090e2 Initial load
duke
parents:
diff changeset
   972
  _thread_in_vm_trans       =  7, // corresponding transition state
489c9b5090e2 Initial load
duke
parents:
diff changeset
   973
  _thread_in_Java           =  8, // running in Java or in stub code
489c9b5090e2 Initial load
duke
parents:
diff changeset
   974
  _thread_in_Java_trans     =  9, // corresponding transition state (not used, included for completness)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   975
  _thread_blocked           = 10, // blocked in vm
489c9b5090e2 Initial load
duke
parents:
diff changeset
   976
  _thread_blocked_trans     = 11, // corresponding transition state
489c9b5090e2 Initial load
duke
parents:
diff changeset
   977
  _thread_max_state         = 12  // maximum thread state+1 - used for statistics allocation
489c9b5090e2 Initial load
duke
parents:
diff changeset
   978
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   979
489c9b5090e2 Initial load
duke
parents:
diff changeset
   980
16689
efce070b8d42 8007288: Additional WB API for compiler's testing
iignatyev
parents: 15228
diff changeset
   981
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   982
//----------------------------------------------------------------------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
   983
// 'Forward' declarations of frequently used classes
489c9b5090e2 Initial load
duke
parents:
diff changeset
   984
// (in order to reduce interface dependencies & reduce
489c9b5090e2 Initial load
duke
parents:
diff changeset
   985
// number of unnecessary compilations after changes)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   986
489c9b5090e2 Initial load
duke
parents:
diff changeset
   987
class ClassFileStream;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   988
489c9b5090e2 Initial load
duke
parents:
diff changeset
   989
class Event;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   990
489c9b5090e2 Initial load
duke
parents:
diff changeset
   991
class Thread;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   992
class  VMThread;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   993
class  JavaThread;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   994
class Threads;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   995
489c9b5090e2 Initial load
duke
parents:
diff changeset
   996
class VM_Operation;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   997
class VMOperationQueue;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   998
489c9b5090e2 Initial load
duke
parents:
diff changeset
   999
class CodeBlob;
38133
78b95467b9f1 8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents: 37510
diff changeset
  1000
class  CompiledMethod;
78b95467b9f1 8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents: 37510
diff changeset
  1001
class   nmethod;
78b95467b9f1 8151956: Support non-continuous CodeBlobs in HotSpot
rbackman
parents: 37510
diff changeset
  1002
class RuntimeBlob;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1003
class  OSRAdapter;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1004
class  I2CAdapter;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1005
class  C2IAdapter;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1006
class CompiledIC;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1007
class relocInfo;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1008
class ScopeDesc;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1009
class PcDesc;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1010
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1011
class Recompiler;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1012
class Recompilee;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1013
class RecompilationPolicy;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1014
class RFrame;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1015
class  CompiledRFrame;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1016
class  InterpretedRFrame;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1017
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1018
class vframe;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1019
class   javaVFrame;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1020
class     interpretedVFrame;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1021
class     compiledVFrame;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1022
class     deoptimizedVFrame;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1023
class   externalVFrame;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1024
class     entryVFrame;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1025
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1026
class RegisterMap;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1027
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1028
class Mutex;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1029
class Monitor;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1030
class BasicLock;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1031
class BasicObjectLock;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1032
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1033
class PeriodicTask;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1034
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1035
class JavaCallWrapper;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1036
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1037
class   oopDesc;
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12779
diff changeset
  1038
class   metaDataOopDesc;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1039
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1040
class NativeCall;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1041
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1042
class zone;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1043
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1044
class StubQueue;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1045
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1046
class outputStream;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1047
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1048
class ResourceArea;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1049
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1050
class DebugInformationRecorder;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1051
class ScopeValue;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1052
class CompressedStream;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1053
class   DebugInfoReadStream;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1054
class   DebugInfoWriteStream;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1055
class LocationValue;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1056
class ConstantValue;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1057
class IllegalValue;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1058
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1059
class PrivilegedElement;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1060
class MonitorArray;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1061
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1062
class MonitorInfo;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1063
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1064
class OffsetClosure;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1065
class OopMapCache;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1066
class InterpreterOopMap;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1067
class OopMapCacheEntry;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1068
class OSThread;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1069
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1070
typedef int (*OSThreadStartFunc)(void*);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1071
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1072
class Space;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1073
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1074
class JavaValue;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1075
class methodHandle;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1076
class JavaCallArguments;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1077
46560
388aa8d67c80 8181449: Fix debug.hpp / globalDefinitions.hpp dependency inversion
kbarrett
parents: 46554
diff changeset
  1078
// Basic support for errors.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1079
extern void basic_fatal(const char* msg);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1080
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1081
//----------------------------------------------------------------------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1082
// Special constants for debugging
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1083
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1084
const jint     badInt           = -3;                       // generic "bad int" value
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1085
const long     badAddressVal    = -2;                       // generic "bad address" value
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1086
const long     badOopVal        = -1;                       // generic "bad oop" value
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1087
const intptr_t badHeapOopVal    = (intptr_t) CONST64(0x2BAD4B0BBAADBABE); // value used to zap heap after GC
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1088
const int      badHandleValue   = 0xBC;                     // value used to zap vm handle area
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1089
const int      badResourceValue = 0xAB;                     // value used to zap resource area
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1090
const int      freeBlockPad     = 0xBA;                     // value used to pad freed blocks.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1091
const int      uninitBlockPad   = 0xF1;                     // value used to zap newly malloc'd blocks.
36829
dd6004c32d75 8151623: Zap freed Metaspace chunks in non-product binaries
vlivanov
parents: 36581
diff changeset
  1092
const juint    uninitMetaWordVal= 0xf7f7f7f7;               // value used to zap newly allocated metachunk
27471
6e56277909f1 8062370: Various minor code improvements
goetz
parents: 27165
diff changeset
  1093
const intptr_t badJNIHandleVal  = (intptr_t) UCONST64(0xFEFEFEFEFEFEFEFE); // value used to zap jni handle area
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1094
const juint    badHeapWordVal   = 0xBAADBABE;               // value used to zap heap after GC
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12779
diff changeset
  1095
const juint    badMetaWordVal   = 0xBAADFADE;               // value used to zap metadata heap after GC
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1096
const int      badCodeHeapNewVal= 0xCC;                     // value used to zap Code heap at allocation
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1097
const int      badCodeHeapFreeVal = 0xDD;                   // value used to zap Code heap at deallocation
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1098
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1099
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1100
// (These must be implemented as #defines because C++ compilers are
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1101
// not obligated to inline non-integral constants!)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1102
#define       badAddress        ((address)::badAddressVal)
20282
7f9cbdf89af2 7195622: CheckUnhandledOops has limited usefulness now
hseigel
parents: 19546
diff changeset
  1103
#define       badOop            (cast_to_oop(::badOopVal))
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1104
#define       badHeapWord       (::badHeapWordVal)
20282
7f9cbdf89af2 7195622: CheckUnhandledOops has limited usefulness now
hseigel
parents: 19546
diff changeset
  1105
#define       badJNIHandle      (cast_to_oop(::badJNIHandleVal))
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1106
5076
8b74a4b60b31 4396719: Mark Sweep stack overflow on deeply nested Object arrays
jcoomes
parents: 4902
diff changeset
  1107
// Default TaskQueue size is 16K (32-bit) or 128K (64-bit)
8b74a4b60b31 4396719: Mark Sweep stack overflow on deeply nested Object arrays
jcoomes
parents: 4902
diff changeset
  1108
#define TASKQUEUE_SIZE (NOT_LP64(1<<14) LP64_ONLY(1<<17))
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1109
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1110
//----------------------------------------------------------------------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1111
// Utility functions for bitfield manipulations
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1112
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1113
const intptr_t AllBits    = ~0; // all bits set in a word
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1114
const intptr_t NoBits     =  0; // no bits set in a word
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1115
const jlong    NoLongBits =  0; // no bits set in a long
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1116
const intptr_t OneBit     =  1; // only right_most bit set in a word
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1117
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1118
// get a word with the n.th or the right-most or left-most n bits set
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1119
// (note: #define used only so that they can be used in enum constant definitions)
37056
109f610020fa 8150617: nth_bit and friends are broken
stefank
parents: 36581
diff changeset
  1120
#define nth_bit(n)        (((n) >= BitsPerWord) ? 0 : (OneBit << (n)))
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1121
#define right_n_bits(n)   (nth_bit(n) - 1)
37056
109f610020fa 8150617: nth_bit and friends are broken
stefank
parents: 36581
diff changeset
  1122
#define left_n_bits(n)    (right_n_bits(n) << (((n) >= BitsPerWord) ? 0 : (BitsPerWord - (n))))
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1123
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1124
// bit-operations using a mask m
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1125
inline void   set_bits    (intptr_t& x, intptr_t m) { x |= m; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1126
inline void clear_bits    (intptr_t& x, intptr_t m) { x &= ~m; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1127
inline intptr_t mask_bits      (intptr_t  x, intptr_t m) { return x & m; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1128
inline jlong    mask_long_bits (jlong     x, jlong    m) { return x & m; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1129
inline bool mask_bits_are_true (intptr_t flags, intptr_t mask) { return (flags & mask) == mask; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1130
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1131
// bit-operations using the n.th bit
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1132
inline void    set_nth_bit(intptr_t& x, int n) { set_bits  (x, nth_bit(n)); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1133
inline void  clear_nth_bit(intptr_t& x, int n) { clear_bits(x, nth_bit(n)); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1134
inline bool is_set_nth_bit(intptr_t  x, int n) { return mask_bits (x, nth_bit(n)) != NoBits; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1135
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1136
// returns the bitfield of x starting at start_bit_no with length field_length (no sign-extension!)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1137
inline intptr_t bitfield(intptr_t x, int start_bit_no, int field_length) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1138
  return mask_bits(x >> start_bit_no, right_n_bits(field_length));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1139
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1140
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1141
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1142
//----------------------------------------------------------------------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1143
// Utility functions for integers
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1144
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1145
// Avoid use of global min/max macros which may cause unwanted double
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1146
// evaluation of arguments.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1147
#ifdef max
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1148
#undef max
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1149
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1150
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1151
#ifdef min
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1152
#undef min
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1153
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1154
45513
5431282d8ce1 8161145: The min/max macros make hotspot tests fail to build with GCC 6
eosterlund
parents: 42061
diff changeset
  1155
// The following defines serve the purpose of preventing use of accidentally
5431282d8ce1 8161145: The min/max macros make hotspot tests fail to build with GCC 6
eosterlund
parents: 42061
diff changeset
  1156
// included min max macros from compiling, while continuing to allow innocent
5431282d8ce1 8161145: The min/max macros make hotspot tests fail to build with GCC 6
eosterlund
parents: 42061
diff changeset
  1157
// min and max identifiers in the code to compile as intended.
5431282d8ce1 8161145: The min/max macros make hotspot tests fail to build with GCC 6
eosterlund
parents: 42061
diff changeset
  1158
#define max max
5431282d8ce1 8161145: The min/max macros make hotspot tests fail to build with GCC 6
eosterlund
parents: 42061
diff changeset
  1159
#define min min
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1160
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1161
// It is necessary to use templates here. Having normal overloaded
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1162
// functions does not work because it is necessary to provide both 32-
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1163
// and 64-bit overloaded functions, which does not work, and having
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1164
// explicitly-typed versions of these routines (i.e., MAX2I, MAX2L)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1165
// will be even more error-prone than macros.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1166
template<class T> inline T MAX2(T a, T b)           { return (a > b) ? a : b; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1167
template<class T> inline T MIN2(T a, T b)           { return (a < b) ? a : b; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1168
template<class T> inline T MAX3(T a, T b, T c)      { return MAX2(MAX2(a, b), c); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1169
template<class T> inline T MIN3(T a, T b, T c)      { return MIN2(MIN2(a, b), c); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1170
template<class T> inline T MAX4(T a, T b, T c, T d) { return MAX2(MAX3(a, b, c), d); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1171
template<class T> inline T MIN4(T a, T b, T c, T d) { return MIN2(MIN3(a, b, c), d); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1172
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1173
template<class T> inline T ABS(T x)                 { return (x > 0) ? x : -x; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1174
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1175
// true if x is a power of 2, false otherwise
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1176
inline bool is_power_of_2(intptr_t x) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1177
  return ((x != NoBits) && (mask_bits(x, x - 1) == NoBits));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1178
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1179
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1180
// long version of is_power_of_2
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1181
inline bool is_power_of_2_long(jlong x) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1182
  return ((x != NoLongBits) && (mask_long_bits(x, x - 1) == NoLongBits));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1183
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1184
28650
772aaab2582f 8059606: Enable per-method usage of CompileThresholdScaling (per-method compilation thresholds)
zmajo
parents: 28372
diff changeset
  1185
// Returns largest i such that 2^i <= x.
772aaab2582f 8059606: Enable per-method usage of CompileThresholdScaling (per-method compilation thresholds)
zmajo
parents: 28372
diff changeset
  1186
// If x < 0, the function returns 31 on a 32-bit machine and 63 on a 64-bit machine.
772aaab2582f 8059606: Enable per-method usage of CompileThresholdScaling (per-method compilation thresholds)
zmajo
parents: 28372
diff changeset
  1187
// If x == 0, the function returns -1.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1188
inline int log2_intptr(intptr_t x) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1189
  int i = -1;
28650
772aaab2582f 8059606: Enable per-method usage of CompileThresholdScaling (per-method compilation thresholds)
zmajo
parents: 28372
diff changeset
  1190
  uintptr_t p = 1;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1191
  while (p != 0 && p <= (uintptr_t)x) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1192
    // p = 2^(i+1) && p <= x (i.e., 2^(i+1) <= x)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1193
    i++; p *= 2;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1194
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1195
  // p = 2^(i+1) && x < p (i.e., 2^i <= x < 2^(i+1))
28650
772aaab2582f 8059606: Enable per-method usage of CompileThresholdScaling (per-method compilation thresholds)
zmajo
parents: 28372
diff changeset
  1196
  // If p = 0, overflow has occurred and i = 31 or i = 63 (depending on the machine word size).
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1197
  return i;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1198
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1199
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1200
//* largest i such that 2^i <= x
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1201
//  A negative value of 'x' will return '63'
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1202
inline int log2_long(jlong x) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1203
  int i = -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1204
  julong p =  1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1205
  while (p != 0 && p <= (julong)x) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1206
    // p = 2^(i+1) && p <= x (i.e., 2^(i+1) <= x)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1207
    i++; p *= 2;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1208
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1209
  // p = 2^(i+1) && x < p (i.e., 2^i <= x < 2^(i+1))
2131
98f9cef66a34 6810672: Comment typos
twisti
parents: 2034
diff changeset
  1210
  // (if p = 0 then overflow occurred and i = 63)
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1211
  return i;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1212
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1213
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1214
//* the argument must be exactly a power of 2
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1215
inline int exact_log2(intptr_t x) {
46560
388aa8d67c80 8181449: Fix debug.hpp / globalDefinitions.hpp dependency inversion
kbarrett
parents: 46554
diff changeset
  1216
  assert(is_power_of_2(x), "x must be a power of 2: " INTPTR_FORMAT, x);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1217
  return log2_intptr(x);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1218
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1219
2032
1e27661bff28 6805724: ModLNode::Ideal() generates functionally incorrect graph when divisor is any (2^k-1) constant.
twisti
parents: 2023
diff changeset
  1220
//* the argument must be exactly a power of 2
1e27661bff28 6805724: ModLNode::Ideal() generates functionally incorrect graph when divisor is any (2^k-1) constant.
twisti
parents: 2023
diff changeset
  1221
inline int exact_log2_long(jlong x) {
46560
388aa8d67c80 8181449: Fix debug.hpp / globalDefinitions.hpp dependency inversion
kbarrett
parents: 46554
diff changeset
  1222
  assert(is_power_of_2_long(x), "x must be a power of 2: " JLONG_FORMAT, x);
2032
1e27661bff28 6805724: ModLNode::Ideal() generates functionally incorrect graph when divisor is any (2^k-1) constant.
twisti
parents: 2023
diff changeset
  1223
  return log2_long(x);
1e27661bff28 6805724: ModLNode::Ideal() generates functionally incorrect graph when divisor is any (2^k-1) constant.
twisti
parents: 2023
diff changeset
  1224
}
1e27661bff28 6805724: ModLNode::Ideal() generates functionally incorrect graph when divisor is any (2^k-1) constant.
twisti
parents: 2023
diff changeset
  1225
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1226
inline bool is_odd (intx x) { return x & 1;      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1227
inline bool is_even(intx x) { return !is_odd(x); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1228
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1229
// "to" should be greater than "from."
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1230
inline intx byte_size(void* from, void* to) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1231
  return (address)to - (address)from;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1232
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1233
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1234
//----------------------------------------------------------------------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1235
// Avoid non-portable casts with these routines (DEPRECATED)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1236
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1237
// NOTE: USE Bytes class INSTEAD WHERE POSSIBLE
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1238
//       Bytes is optimized machine-specifically and may be much faster then the portable routines below.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1239
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1240
// Given sequence of four bytes, build into a 32-bit word
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1241
// following the conventions used in class files.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1242
// On the 386, this could be realized with a simple address cast.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1243
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1244
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1245
// This routine takes eight bytes:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1246
inline u8 build_u8_from( u1 c1, u1 c2, u1 c3, u1 c4, u1 c5, u1 c6, u1 c7, u1 c8 ) {
6459
3d75ed40a975 6934483: GCC 4.5 errors "suggest parentheses around something..." when compiling with -Werror and -Wall
twisti
parents: 6453
diff changeset
  1247
  return  (( u8(c1) << 56 )  &  ( u8(0xff) << 56 ))
3d75ed40a975 6934483: GCC 4.5 errors "suggest parentheses around something..." when compiling with -Werror and -Wall
twisti
parents: 6453
diff changeset
  1248
       |  (( u8(c2) << 48 )  &  ( u8(0xff) << 48 ))
3d75ed40a975 6934483: GCC 4.5 errors "suggest parentheses around something..." when compiling with -Werror and -Wall
twisti
parents: 6453
diff changeset
  1249
       |  (( u8(c3) << 40 )  &  ( u8(0xff) << 40 ))
3d75ed40a975 6934483: GCC 4.5 errors "suggest parentheses around something..." when compiling with -Werror and -Wall
twisti
parents: 6453
diff changeset
  1250
       |  (( u8(c4) << 32 )  &  ( u8(0xff) << 32 ))
3d75ed40a975 6934483: GCC 4.5 errors "suggest parentheses around something..." when compiling with -Werror and -Wall
twisti
parents: 6453
diff changeset
  1251
       |  (( u8(c5) << 24 )  &  ( u8(0xff) << 24 ))
3d75ed40a975 6934483: GCC 4.5 errors "suggest parentheses around something..." when compiling with -Werror and -Wall
twisti
parents: 6453
diff changeset
  1252
       |  (( u8(c6) << 16 )  &  ( u8(0xff) << 16 ))
3d75ed40a975 6934483: GCC 4.5 errors "suggest parentheses around something..." when compiling with -Werror and -Wall
twisti
parents: 6453
diff changeset
  1253
       |  (( u8(c7) <<  8 )  &  ( u8(0xff) <<  8 ))
3d75ed40a975 6934483: GCC 4.5 errors "suggest parentheses around something..." when compiling with -Werror and -Wall
twisti
parents: 6453
diff changeset
  1254
       |  (( u8(c8) <<  0 )  &  ( u8(0xff) <<  0 ));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1255
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1256
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1257
// This routine takes four bytes:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1258
inline u4 build_u4_from( u1 c1, u1 c2, u1 c3, u1 c4 ) {
6459
3d75ed40a975 6934483: GCC 4.5 errors "suggest parentheses around something..." when compiling with -Werror and -Wall
twisti
parents: 6453
diff changeset
  1259
  return  (( u4(c1) << 24 )  &  0xff000000)
3d75ed40a975 6934483: GCC 4.5 errors "suggest parentheses around something..." when compiling with -Werror and -Wall
twisti
parents: 6453
diff changeset
  1260
       |  (( u4(c2) << 16 )  &  0x00ff0000)
3d75ed40a975 6934483: GCC 4.5 errors "suggest parentheses around something..." when compiling with -Werror and -Wall
twisti
parents: 6453
diff changeset
  1261
       |  (( u4(c3) <<  8 )  &  0x0000ff00)
3d75ed40a975 6934483: GCC 4.5 errors "suggest parentheses around something..." when compiling with -Werror and -Wall
twisti
parents: 6453
diff changeset
  1262
       |  (( u4(c4) <<  0 )  &  0x000000ff);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1263
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1264
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1265
// And this one works if the four bytes are contiguous in memory:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1266
inline u4 build_u4_from( u1* p ) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1267
  return  build_u4_from( p[0], p[1], p[2], p[3] );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1268
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1269
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1270
// Ditto for two-byte ints:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1271
inline u2 build_u2_from( u1 c1, u1 c2 ) {
6459
3d75ed40a975 6934483: GCC 4.5 errors "suggest parentheses around something..." when compiling with -Werror and -Wall
twisti
parents: 6453
diff changeset
  1272
  return  u2((( u2(c1) <<  8 )  &  0xff00)
3d75ed40a975 6934483: GCC 4.5 errors "suggest parentheses around something..." when compiling with -Werror and -Wall
twisti
parents: 6453
diff changeset
  1273
          |  (( u2(c2) <<  0 )  &  0x00ff));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1274
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1275
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1276
// And this one works if the two bytes are contiguous in memory:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1277
inline u2 build_u2_from( u1* p ) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1278
  return  build_u2_from( p[0], p[1] );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1279
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1280
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1281
// Ditto for floats:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1282
inline jfloat build_float_from( u1 c1, u1 c2, u1 c3, u1 c4 ) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1283
  u4 u = build_u4_from( c1, c2, c3, c4 );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1284
  return  *(jfloat*)&u;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1285
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1286
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1287
inline jfloat build_float_from( u1* p ) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1288
  u4 u = build_u4_from( p );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1289
  return  *(jfloat*)&u;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1290
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1291
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1292
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1293
// now (64-bit) longs
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1294
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1295
inline jlong build_long_from( u1 c1, u1 c2, u1 c3, u1 c4, u1 c5, u1 c6, u1 c7, u1 c8 ) {
6459
3d75ed40a975 6934483: GCC 4.5 errors "suggest parentheses around something..." when compiling with -Werror and -Wall
twisti
parents: 6453
diff changeset
  1296
  return  (( jlong(c1) << 56 )  &  ( jlong(0xff) << 56 ))
3d75ed40a975 6934483: GCC 4.5 errors "suggest parentheses around something..." when compiling with -Werror and -Wall
twisti
parents: 6453
diff changeset
  1297
       |  (( jlong(c2) << 48 )  &  ( jlong(0xff) << 48 ))
3d75ed40a975 6934483: GCC 4.5 errors "suggest parentheses around something..." when compiling with -Werror and -Wall
twisti
parents: 6453
diff changeset
  1298
       |  (( jlong(c3) << 40 )  &  ( jlong(0xff) << 40 ))
3d75ed40a975 6934483: GCC 4.5 errors "suggest parentheses around something..." when compiling with -Werror and -Wall
twisti
parents: 6453
diff changeset
  1299
       |  (( jlong(c4) << 32 )  &  ( jlong(0xff) << 32 ))
3d75ed40a975 6934483: GCC 4.5 errors "suggest parentheses around something..." when compiling with -Werror and -Wall
twisti
parents: 6453
diff changeset
  1300
       |  (( jlong(c5) << 24 )  &  ( jlong(0xff) << 24 ))
3d75ed40a975 6934483: GCC 4.5 errors "suggest parentheses around something..." when compiling with -Werror and -Wall
twisti
parents: 6453
diff changeset
  1301
       |  (( jlong(c6) << 16 )  &  ( jlong(0xff) << 16 ))
3d75ed40a975 6934483: GCC 4.5 errors "suggest parentheses around something..." when compiling with -Werror and -Wall
twisti
parents: 6453
diff changeset
  1302
       |  (( jlong(c7) <<  8 )  &  ( jlong(0xff) <<  8 ))
3d75ed40a975 6934483: GCC 4.5 errors "suggest parentheses around something..." when compiling with -Werror and -Wall
twisti
parents: 6453
diff changeset
  1303
       |  (( jlong(c8) <<  0 )  &  ( jlong(0xff) <<  0 ));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1304
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1305
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1306
inline jlong build_long_from( u1* p ) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1307
  return  build_long_from( p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7] );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1308
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1309
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1310
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1311
// Doubles, too!
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1312
inline jdouble build_double_from( u1 c1, u1 c2, u1 c3, u1 c4, u1 c5, u1 c6, u1 c7, u1 c8 ) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1313
  jlong u = build_long_from( c1, c2, c3, c4, c5, c6, c7, c8 );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1314
  return  *(jdouble*)&u;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1315
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1316
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1317
inline jdouble build_double_from( u1* p ) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1318
  jlong u = build_long_from( p );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1319
  return  *(jdouble*)&u;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1320
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1321
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1322
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1323
// Portable routines to go the other way:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1324
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1325
inline void explode_short_to( u2 x, u1& c1, u1& c2 ) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1326
  c1 = u1(x >> 8);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1327
  c2 = u1(x);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1328
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1329
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1330
inline void explode_short_to( u2 x, u1* p ) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1331
  explode_short_to( x, p[0], p[1]);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1332
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1333
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1334
inline void explode_int_to( u4 x, u1& c1, u1& c2, u1& c3, u1& c4 ) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1335
  c1 = u1(x >> 24);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1336
  c2 = u1(x >> 16);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1337
  c3 = u1(x >>  8);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1338
  c4 = u1(x);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1339
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1340
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1341
inline void explode_int_to( u4 x, u1* p ) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1342
  explode_int_to( x, p[0], p[1], p[2], p[3]);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1343
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1344
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1345
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1346
// Pack and extract shorts to/from ints:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1347
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1348
inline int extract_low_short_from_int(jint x) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1349
  return x & 0xffff;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1350
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1351
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1352
inline int extract_high_short_from_int(jint x) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1353
  return (x >> 16) & 0xffff;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1354
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1355
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1356
inline int build_int_from_shorts( jushort low, jushort high ) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1357
  return ((int)((unsigned int)high << 16) | (unsigned int)low);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1358
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1359
24424
2658d7834c6e 8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents: 24092
diff changeset
  1360
// Convert pointer to intptr_t, for use in printing pointers.
2658d7834c6e 8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents: 24092
diff changeset
  1361
inline intptr_t p2i(const void * p) {
2658d7834c6e 8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents: 24092
diff changeset
  1362
  return (intptr_t) p;
2658d7834c6e 8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents: 24092
diff changeset
  1363
}
2658d7834c6e 8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents: 24092
diff changeset
  1364
30183
a6588c0a3259 8073480: C2 should optimize explicit range checks
roland
parents: 29193
diff changeset
  1365
// swap a & b
a6588c0a3259 8073480: C2 should optimize explicit range checks
roland
parents: 29193
diff changeset
  1366
template<class T> static void swap(T& a, T& b) {
a6588c0a3259 8073480: C2 should optimize explicit range checks
roland
parents: 29193
diff changeset
  1367
  T tmp = a;
a6588c0a3259 8073480: C2 should optimize explicit range checks
roland
parents: 29193
diff changeset
  1368
  a = b;
a6588c0a3259 8073480: C2 should optimize explicit range checks
roland
parents: 29193
diff changeset
  1369
  b = tmp;
a6588c0a3259 8073480: C2 should optimize explicit range checks
roland
parents: 29193
diff changeset
  1370
}
a6588c0a3259 8073480: C2 should optimize explicit range checks
roland
parents: 29193
diff changeset
  1371
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1372
#define ARRAY_SIZE(array) (sizeof(array)/sizeof((array)[0]))
7397
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6459
diff changeset
  1373
35155
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1374
//----------------------------------------------------------------------------------------------------
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1375
// Sum and product which can never overflow: they wrap, just like the
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1376
// Java operations.  Note that we don't intend these to be used for
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1377
// general-purpose arithmetic: their purpose is to emulate Java
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1378
// operations.
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1379
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1380
// The goal of this code to avoid undefined or implementation-defined
36581
8d65a7db1582 6787054: Par compact - remove code that clears source_region
jwilhelm
parents: 35898
diff changeset
  1381
// behavior.  The use of an lvalue to reference cast is explicitly
35155
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1382
// permitted by Lvalues and rvalues [basic.lval].  [Section 3.10 Para
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1383
// 15 in C++03]
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1384
#define JAVA_INTEGER_OP(OP, NAME, TYPE, UNSIGNED_TYPE)  \
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1385
inline TYPE NAME (TYPE in1, TYPE in2) {                 \
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1386
  UNSIGNED_TYPE ures = static_cast<UNSIGNED_TYPE>(in1); \
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1387
  ures OP ## = static_cast<UNSIGNED_TYPE>(in2);         \
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1388
  return reinterpret_cast<TYPE&>(ures);                 \
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1389
}
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1390
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1391
JAVA_INTEGER_OP(+, java_add, jint, juint)
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1392
JAVA_INTEGER_OP(-, java_subtract, jint, juint)
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1393
JAVA_INTEGER_OP(*, java_multiply, jint, juint)
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1394
JAVA_INTEGER_OP(+, java_add, jlong, julong)
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1395
JAVA_INTEGER_OP(-, java_subtract, jlong, julong)
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1396
JAVA_INTEGER_OP(*, java_multiply, jlong, julong)
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1397
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1398
#undef JAVA_INTEGER_OP
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1399
14579
7f6ce6e3dd80 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 14487
diff changeset
  1400
// Dereference vptr
7f6ce6e3dd80 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 14487
diff changeset
  1401
// All C++ compilers that we know of have the vtbl pointer in the first
7f6ce6e3dd80 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 14487
diff changeset
  1402
// word.  If there are exceptions, this function needs to be made compiler
7f6ce6e3dd80 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 14487
diff changeset
  1403
// specific.
24457
0e20b36df5c4 8038212: Method::is_valid_method() check has performance regression impact for stackwalking
coleenp
parents: 24424
diff changeset
  1404
static inline void* dereference_vptr(const void* addr) {
14579
7f6ce6e3dd80 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 14487
diff changeset
  1405
  return *(void**)addr;
7f6ce6e3dd80 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 14487
diff changeset
  1406
}
7f6ce6e3dd80 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 14487
diff changeset
  1407
7397
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6459
diff changeset
  1408
#endif // SHARE_VM_UTILITIES_GLOBALDEFINITIONS_HPP