src/hotspot/share/utilities/globalDefinitions.hpp
author mr
Tue, 29 Oct 2019 13:52:04 -0700
changeset 58850 f4290bf1cc21
parent 58722 cba8afa5cfed
child 58973 291775bcf35d
permissions -rw-r--r--
8233137: runtime/ErrorHandling/VeryEarlyAssertTest.java fails after 8232080 Reviewed-by: stuefe, iignatyev, mchung
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/*
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 * Copyright (c) 1997, 2019, 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_UTILITIES_GLOBALDEFINITIONS_HPP
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#define SHARE_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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// Get constants like JVM_T_CHAR and JVM_SIGNATURE_INT, before pulling in <jvm.h>.
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#include "classfile_constants.h"
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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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#ifndef ATTRIBUTE_ALIGNED
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#define ATTRIBUTE_ALIGNED(x)
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#endif
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// These are #defines to selectively turn on/off the Print(Opto)Assembly
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// capabilities. Choices should be led by a tradeoff between
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// code size and improved supportability.
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// if PRINT_ASSEMBLY then PRINT_ABSTRACT_ASSEMBLY must be true as well
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// to have a fallback in case hsdis is not available.
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#if defined(PRODUCT)
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  #define SUPPORT_ABSTRACT_ASSEMBLY
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  #define SUPPORT_ASSEMBLY
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  #undef  SUPPORT_OPTO_ASSEMBLY      // Can't activate. In PRODUCT, many dump methods are missing.
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  #undef  SUPPORT_DATA_STRUCTS       // Of limited use. In PRODUCT, many print methods are empty.
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#else
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  #define SUPPORT_ABSTRACT_ASSEMBLY
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  #define SUPPORT_ASSEMBLY
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  #define SUPPORT_OPTO_ASSEMBLY
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  #define SUPPORT_DATA_STRUCTS
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#endif
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#if defined(SUPPORT_ASSEMBLY) && !defined(SUPPORT_ABSTRACT_ASSEMBLY)
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  #define SUPPORT_ABSTRACT_ASSEMBLY
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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 UINT64_FORMAT_X_W(width) "%" #width PRIx64
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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 JLONG_FORMAT_W
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#define JLONG_FORMAT_W(width)  INT64_FORMAT_W(width)
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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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// Format pointers without leading zeros
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#define INTPTRNZ_FORMAT "0x%"  PRIxPTR
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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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// An opaque type, so that HeapWord* can be a generic pointer into the heap.
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// We require that object sizes be measured in units of heap words (e.g.
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// pointer-sized values), so that given 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 HeapWordImpl;             // Opaque, never defined.
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typedef HeapWordImpl* HeapWord;
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// Analogous opaque struct for metadata allocated from metaspaces.
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class MetaWordImpl;             // Opaque, never defined.
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typedef MetaWordImpl* MetaWord;
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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 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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// Proper units routines try to maintain at least three significant digits.
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// In worst case, it would print five significant digits with lower prefix.
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// G is close to MAX_SIZE on 32-bit platforms, so its product can easily overflow,
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// and therefore we need to be careful.
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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 >= 100*G) {
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    return "G";
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  }
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#endif
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  if (s >= 100*M) {
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    return "M";
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  } else if (s >= 100*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 >= 100*G) {
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    return (T)(s/G);
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  }
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#endif
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  if (s >= 100*M) {
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    return (T)(s/M);
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  } else if (s >= 100*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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// Memory size transition formatting.
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#define HEAP_CHANGE_FORMAT "%s: " SIZE_FORMAT "K(" SIZE_FORMAT "K)->" SIZE_FORMAT "K(" SIZE_FORMAT "K)"
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#define HEAP_CHANGE_FORMAT_ARGS(_name_, _prev_used_, _prev_capacity_, _used_, _capacity_) \
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  (_name_), (_prev_used_) / K, (_prev_capacity_) / K, (_used_) / K, (_capacity_) / K
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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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   386
inline size_t pointer_delta(const HeapWord* left, const HeapWord* right) {
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   387
  return pointer_delta(left, right, sizeof(HeapWord));
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}
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// A version specialized for MetaWord*'s.
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coleenp
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   390
inline size_t pointer_delta(const MetaWord* left, const MetaWord* right) {
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coleenp
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  return pointer_delta(left, right, sizeof(MetaWord));
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}
1
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//
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   395
// ANSI C++ does not allow casting from one pointer type to a function pointer
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// directly without at best a warning. This macro accomplishes it silently
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// 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
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// to a C linkage function. In some case the type used for the cast reflects
1
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// that linkage and a picky compiler would not complain. In other cases because
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   400
// there is no convenient place to place a typedef with extern C linkage (i.e
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   401
// a platform dependent header file) it doesn't. At this point no compiler seems
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   402
// picky enough to catch these instances (which are few). It is possible that
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   403
// using templates could fix these for all cases. This use of templates is likely
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   404
// so far from the middle of the road that it is likely to be problematic in
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   405
// many C++ compilers.
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   406
//
37442
942637261b21 8151322: Implement os::set_native_thread_name() on Solaris
dholmes
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   407
#define CAST_TO_FN_PTR(func_type, value) (reinterpret_cast<func_type>(value))
1
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#define CAST_FROM_FN_PTR(new_type, func_ptr) ((new_type)((address_word)(func_ptr)))
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   409
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   410
// Unsigned byte types for os and stream.hpp
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   411
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   412
// Unsigned one, two, four and eigth byte quantities used for describing
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   413
// the .class file format. See JVM book chapter 4.
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   414
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typedef jubyte  u1;
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typedef jushort u2;
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typedef juint   u4;
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typedef julong  u8;
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   419
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const jubyte  max_jubyte  = (jubyte)-1;  // 0xFF       largest jubyte
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   421
const jushort max_jushort = (jushort)-1; // 0xFFFF     largest jushort
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const juint   max_juint   = (juint)-1;   // 0xFFFFFFFF largest juint
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const julong  max_julong  = (julong)-1;  // 0xFF....FF largest julong
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11480
1bf714e8adb4 7115199: Add event tracing hooks and Java Flight Recorder infrastructure
phh
parents: 11251
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   425
typedef jbyte  s1;
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phh
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   426
typedef jshort s2;
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phh
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   427
typedef jint   s4;
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phh
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diff changeset
   428
typedef jlong  s8;
1bf714e8adb4 7115199: Add event tracing hooks and Java Flight Recorder infrastructure
phh
parents: 11251
diff changeset
   429
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cf066fe4531b 8133051: Concurrent refinement threads may be activated and deactivated at random
kbarrett
parents: 37462
diff changeset
   430
const jbyte min_jbyte = -(1 << 7);       // smallest jbyte
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kbarrett
parents: 37462
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   431
const jbyte max_jbyte = (1 << 7) - 1;    // largest jbyte
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kbarrett
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diff changeset
   432
const jshort min_jshort = -(1 << 15);    // smallest jshort
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kbarrett
parents: 37462
diff changeset
   433
const jshort max_jshort = (1 << 15) - 1; // largest jshort
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kbarrett
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diff changeset
   434
cf066fe4531b 8133051: Concurrent refinement threads may be activated and deactivated at random
kbarrett
parents: 37462
diff changeset
   435
const jint min_jint = (jint)1 << (sizeof(jint)*BitsPerByte-1); // 0x80000000 == smallest jint
cf066fe4531b 8133051: Concurrent refinement threads may be activated and deactivated at random
kbarrett
parents: 37462
diff changeset
   436
const jint max_jint = (juint)min_jint - 1;                     // 0x7FFFFFFF == largest jint
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   437
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//----------------------------------------------------------------------------------------------------
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   439
// JVM spec restrictions
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   440
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const int max_method_code_size = 64*K - 1;  // JVM spec, 2nd ed. section 4.8.1 (p.134)
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   442
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//----------------------------------------------------------------------------------------------------
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   444
// Object alignment, in units of HeapWords.
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   445
//
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parents:
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   446
// Minimum is max(BytesPerLong, BytesPerDouble, BytesPerOop) / HeapWordSize, so jlong, jdouble and
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   447
// reference fields can be naturally aligned.
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5694
1e0532a6abff 6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
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   449
extern int MinObjAlignment;
1e0532a6abff 6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
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   450
extern int MinObjAlignmentInBytes;
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   451
extern int MinObjAlignmentInBytesMask;
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1e0532a6abff 6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
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diff changeset
   453
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
   454
extern int LogMinObjAlignmentInBytes;
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 202
diff changeset
   455
13969
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   456
const int LogKlassAlignmentInBytes = 3;
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   457
const int LogKlassAlignment        = LogKlassAlignmentInBytes - LogHeapWordSize;
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   458
const int KlassAlignmentInBytes    = 1 << LogKlassAlignmentInBytes;
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   459
const int KlassAlignment           = KlassAlignmentInBytes / HeapWordSize;
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   460
28372
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 27471
diff changeset
   461
// 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
   462
// for heap placement: 4GB.
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 27471
diff changeset
   463
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
   464
// 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
   465
// 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
   466
extern uint64_t OopEncodingHeapMax;
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 27471
diff changeset
   467
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 27471
diff changeset
   468
// 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
   469
// 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
   470
// to be < 3G, see arguments.cpp.)
ce0aad4b8c44 8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
goetz
parents: 27471
diff changeset
   471
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
   472
1
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parents:
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   473
// Machine dependent stuff
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parents:
diff changeset
   474
29180
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 27471
diff changeset
   475
// 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
   476
#define CODE_CACHE_SIZE_LIMIT (2*G)
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 27471
diff changeset
   477
// Allow targets to reduce the default size of the code cache.
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 27471
diff changeset
   478
#define CODE_CACHE_DEFAULT_LIMIT CODE_CACHE_SIZE_LIMIT
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 27471
diff changeset
   479
40010
e32d5e545789 8161258: Simplify including platform files.
goetz
parents: 38144
diff changeset
   480
#include CPU_HEADER(globalDefinitions)
7397
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6459
diff changeset
   481
22868
7f6eb436873b 8029101: PPC64 (part 211): ordering of Independent Reads of Independent Writes
goetz
parents: 22851
diff changeset
   482
// 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
   483
// 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
   484
// 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
   485
// (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
   486
// by Luc Maranget, Susmit Sarkar and Peter Sewell, INRIA/Cambridge)
57978
be5865bda5b9 8229422: Taskqueue: Outdated selection of weak memory model platforms
mdoerr
parents: 55576
diff changeset
   487
#ifdef CPU_MULTI_COPY_ATOMIC
be5865bda5b9 8229422: Taskqueue: Outdated selection of weak memory model platforms
mdoerr
parents: 55576
diff changeset
   488
// Not needed.
be5865bda5b9 8229422: Taskqueue: Outdated selection of weak memory model platforms
mdoerr
parents: 55576
diff changeset
   489
const bool support_IRIW_for_not_multiple_copy_atomic_cpu = false;
22868
7f6eb436873b 8029101: PPC64 (part 211): ordering of Independent Reads of Independent Writes
goetz
parents: 22851
diff changeset
   490
#else
57978
be5865bda5b9 8229422: Taskqueue: Outdated selection of weak memory model platforms
mdoerr
parents: 55576
diff changeset
   491
// From all non-multi-copy-atomic architectures, only PPC64 supports IRIW at the moment.
be5865bda5b9 8229422: Taskqueue: Outdated selection of weak memory model platforms
mdoerr
parents: 55576
diff changeset
   492
// Final decision is subject to JEP 188: Java Memory Model Update.
be5865bda5b9 8229422: Taskqueue: Outdated selection of weak memory model platforms
mdoerr
parents: 55576
diff changeset
   493
const bool support_IRIW_for_not_multiple_copy_atomic_cpu = PPC64_ONLY(true) NOT_PPC64(false);
22868
7f6eb436873b 8029101: PPC64 (part 211): ordering of Independent Reads of Independent Writes
goetz
parents: 22851
diff changeset
   494
#endif
7f6eb436873b 8029101: PPC64 (part 211): ordering of Independent Reads of Independent Writes
goetz
parents: 22851
diff changeset
   495
6067
8bfddf73fc04 6962947: shared TaskQueue statistics
jcoomes
parents: 5702
diff changeset
   496
// 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
   497
#ifndef DEFAULT_CACHE_LINE_SIZE
785a8d56024c 8049737: Contended Locking reorder and cache line bucket
dcubed
parents: 26709
diff changeset
   498
  #define DEFAULT_CACHE_LINE_SIZE 64
785a8d56024c 8049737: Contended Locking reorder and cache line bucket
dcubed
parents: 26709
diff changeset
   499
#endif
6067
8bfddf73fc04 6962947: shared TaskQueue statistics
jcoomes
parents: 5702
diff changeset
   500
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   501
489c9b5090e2 Initial load
duke
parents:
diff changeset
   502
//----------------------------------------------------------------------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
   503
// Utility macros for compilers
489c9b5090e2 Initial load
duke
parents:
diff changeset
   504
// used to silence compiler warnings
489c9b5090e2 Initial load
duke
parents:
diff changeset
   505
489c9b5090e2 Initial load
duke
parents:
diff changeset
   506
#define Unused_Variable(var) var
489c9b5090e2 Initial load
duke
parents:
diff changeset
   507
489c9b5090e2 Initial load
duke
parents:
diff changeset
   508
489c9b5090e2 Initial load
duke
parents:
diff changeset
   509
//----------------------------------------------------------------------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
   510
// Miscellaneous
489c9b5090e2 Initial load
duke
parents:
diff changeset
   511
489c9b5090e2 Initial load
duke
parents:
diff changeset
   512
// 6302670 Eliminate Hotspot __fabsf dependency
489c9b5090e2 Initial load
duke
parents:
diff changeset
   513
// All fabs() callers should call this function instead, which will implicitly
489c9b5090e2 Initial load
duke
parents:
diff changeset
   514
// convert the operand to double, avoiding a dependency on __fabsf which
489c9b5090e2 Initial load
duke
parents:
diff changeset
   515
// doesn't exist in early versions of Solaris 8.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   516
inline double fabsd(double value) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   517
  return fabs(value);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   518
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   519
34299
3fdfdda0ac1f 8136678: Implement adaptive sizing algorithm for IHOP
tschatzl
parents: 33198
diff changeset
   520
// 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
   521
// is zero, return 0.0.
3fdfdda0ac1f 8136678: Implement adaptive sizing algorithm for IHOP
tschatzl
parents: 33198
diff changeset
   522
template<typename T>
3fdfdda0ac1f 8136678: Implement adaptive sizing algorithm for IHOP
tschatzl
parents: 33198
diff changeset
   523
inline double percent_of(T numerator, T denominator) {
3fdfdda0ac1f 8136678: Implement adaptive sizing algorithm for IHOP
tschatzl
parents: 33198
diff changeset
   524
  return denominator != 0 ? (double)numerator / denominator * 100.0 : 0.0;
3fdfdda0ac1f 8136678: Implement adaptive sizing algorithm for IHOP
tschatzl
parents: 33198
diff changeset
   525
}
3fdfdda0ac1f 8136678: Implement adaptive sizing algorithm for IHOP
tschatzl
parents: 33198
diff changeset
   526
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
   527
//----------------------------------------------------------------------------------------------------
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
   528
// 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
   529
// 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
   530
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
   531
  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
   532
  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
   533
} 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
   534
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
   535
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
   536
  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
   537
  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
   538
  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
   539
} 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
   540
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
   541
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
   542
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
   543
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
   544
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
   545
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
   546
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
   547
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   548
inline jint low (jlong value)                    { return jint(value); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   549
inline jint high(jlong value)                    { return jint(value >> 32); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   550
489c9b5090e2 Initial load
duke
parents:
diff changeset
   551
// the fancy casts are a hopefully portable way
489c9b5090e2 Initial load
duke
parents:
diff changeset
   552
// to do unsigned 32 to 64 bit type conversion
489c9b5090e2 Initial load
duke
parents:
diff changeset
   553
inline void set_low (jlong* value, jint low )    { *value &= (jlong)0xffffffff << 32;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   554
                                                   *value |= (jlong)(julong)(juint)low; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   555
489c9b5090e2 Initial load
duke
parents:
diff changeset
   556
inline void set_high(jlong* value, jint high)    { *value &= (jlong)(julong)(juint)0xffffffff;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   557
                                                   *value |= (jlong)high       << 32; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   558
489c9b5090e2 Initial load
duke
parents:
diff changeset
   559
inline jlong jlong_from(jint h, jint l) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   560
  jlong result = 0; // initialization to avoid warning
489c9b5090e2 Initial load
duke
parents:
diff changeset
   561
  set_high(&result, h);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   562
  set_low(&result,  l);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   563
  return result;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   564
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   565
489c9b5090e2 Initial load
duke
parents:
diff changeset
   566
union jlong_accessor {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   567
  jint  words[2];
489c9b5090e2 Initial load
duke
parents:
diff changeset
   568
  jlong long_value;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   569
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   570
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 202
diff changeset
   571
void basic_types_init(); // cannot define here; uses assert
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   572
489c9b5090e2 Initial load
duke
parents:
diff changeset
   573
489c9b5090e2 Initial load
duke
parents:
diff changeset
   574
// NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/runtime/BasicType.java
489c9b5090e2 Initial load
duke
parents:
diff changeset
   575
enum BasicType {
58722
cba8afa5cfed 8231844: Enhance type signature characters in classfile_constants.h and improve the JVM to use type signature characters more consistently
lfoltan
parents: 57978
diff changeset
   576
// The values T_BOOLEAN..T_LONG (4..11) are derived from the JVMS.
cba8afa5cfed 8231844: Enhance type signature characters in classfile_constants.h and improve the JVM to use type signature characters more consistently
lfoltan
parents: 57978
diff changeset
   577
  T_BOOLEAN     = JVM_T_BOOLEAN,
cba8afa5cfed 8231844: Enhance type signature characters in classfile_constants.h and improve the JVM to use type signature characters more consistently
lfoltan
parents: 57978
diff changeset
   578
  T_CHAR        = JVM_T_CHAR,
cba8afa5cfed 8231844: Enhance type signature characters in classfile_constants.h and improve the JVM to use type signature characters more consistently
lfoltan
parents: 57978
diff changeset
   579
  T_FLOAT       = JVM_T_FLOAT,
cba8afa5cfed 8231844: Enhance type signature characters in classfile_constants.h and improve the JVM to use type signature characters more consistently
lfoltan
parents: 57978
diff changeset
   580
  T_DOUBLE      = JVM_T_DOUBLE,
cba8afa5cfed 8231844: Enhance type signature characters in classfile_constants.h and improve the JVM to use type signature characters more consistently
lfoltan
parents: 57978
diff changeset
   581
  T_BYTE        = JVM_T_BYTE,
cba8afa5cfed 8231844: Enhance type signature characters in classfile_constants.h and improve the JVM to use type signature characters more consistently
lfoltan
parents: 57978
diff changeset
   582
  T_SHORT       = JVM_T_SHORT,
cba8afa5cfed 8231844: Enhance type signature characters in classfile_constants.h and improve the JVM to use type signature characters more consistently
lfoltan
parents: 57978
diff changeset
   583
  T_INT         = JVM_T_INT,
cba8afa5cfed 8231844: Enhance type signature characters in classfile_constants.h and improve the JVM to use type signature characters more consistently
lfoltan
parents: 57978
diff changeset
   584
  T_LONG        = JVM_T_LONG,
cba8afa5cfed 8231844: Enhance type signature characters in classfile_constants.h and improve the JVM to use type signature characters more consistently
lfoltan
parents: 57978
diff changeset
   585
  // The remaining values are not part of any standard.
cba8afa5cfed 8231844: Enhance type signature characters in classfile_constants.h and improve the JVM to use type signature characters more consistently
lfoltan
parents: 57978
diff changeset
   586
  // T_OBJECT and T_VOID denote two more semantic choices
cba8afa5cfed 8231844: Enhance type signature characters in classfile_constants.h and improve the JVM to use type signature characters more consistently
lfoltan
parents: 57978
diff changeset
   587
  // for method return values.
cba8afa5cfed 8231844: Enhance type signature characters in classfile_constants.h and improve the JVM to use type signature characters more consistently
lfoltan
parents: 57978
diff changeset
   588
  // T_OBJECT and T_ARRAY describe signature syntax.
cba8afa5cfed 8231844: Enhance type signature characters in classfile_constants.h and improve the JVM to use type signature characters more consistently
lfoltan
parents: 57978
diff changeset
   589
  // T_ADDRESS, T_METADATA, T_NARROWOOP, T_NARROWKLASS describe
cba8afa5cfed 8231844: Enhance type signature characters in classfile_constants.h and improve the JVM to use type signature characters more consistently
lfoltan
parents: 57978
diff changeset
   590
  // internal references within the JVM as if they were Java
cba8afa5cfed 8231844: Enhance type signature characters in classfile_constants.h and improve the JVM to use type signature characters more consistently
lfoltan
parents: 57978
diff changeset
   591
  // types in their own right.
13969
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   592
  T_OBJECT      = 12,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   593
  T_ARRAY       = 13,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   594
  T_VOID        = 14,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   595
  T_ADDRESS     = 15,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   596
  T_NARROWOOP   = 16,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   597
  T_METADATA    = 17,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   598
  T_NARROWKLASS = 18,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   599
  T_CONFLICT    = 19, // for stack value type with conflicting contents
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   600
  T_ILLEGAL     = 99
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   601
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   602
202
dc13bf0e5d5d 6633953: type2aelembytes{T_ADDRESS} should be 8 bytes in 64 bit VM
kvn
parents: 1
diff changeset
   603
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
   604
  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
   605
}
dc13bf0e5d5d 6633953: type2aelembytes{T_ADDRESS} should be 8 bytes in 64 bit VM
kvn
parents: 1
diff changeset
   606
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2131
diff changeset
   607
inline bool is_subword_type(BasicType t) {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2131
diff changeset
   608
  // these guys are processed exactly like T_INT in calling sequences:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2131
diff changeset
   609
  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
   610
}
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2131
diff changeset
   611
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2131
diff changeset
   612
inline bool is_signed_subword_type(BasicType t) {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2131
diff changeset
   613
  return (t == T_BYTE || t == T_SHORT);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2131
diff changeset
   614
}
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2131
diff changeset
   615
58722
cba8afa5cfed 8231844: Enhance type signature characters in classfile_constants.h and improve the JVM to use type signature characters more consistently
lfoltan
parents: 57978
diff changeset
   616
inline bool is_double_word_type(BasicType t) {
cba8afa5cfed 8231844: Enhance type signature characters in classfile_constants.h and improve the JVM to use type signature characters more consistently
lfoltan
parents: 57978
diff changeset
   617
  return (t == T_DOUBLE || t == T_LONG);
cba8afa5cfed 8231844: Enhance type signature characters in classfile_constants.h and improve the JVM to use type signature characters more consistently
lfoltan
parents: 57978
diff changeset
   618
}
cba8afa5cfed 8231844: Enhance type signature characters in classfile_constants.h and improve the JVM to use type signature characters more consistently
lfoltan
parents: 57978
diff changeset
   619
48826
c4d9d1b08e2e 8186209: Tool support for ConstantDynamic
psandoz
parents: 48147
diff changeset
   620
inline bool is_reference_type(BasicType t) {
c4d9d1b08e2e 8186209: Tool support for ConstantDynamic
psandoz
parents: 48147
diff changeset
   621
  return (t == T_OBJECT || t == T_ARRAY);
c4d9d1b08e2e 8186209: Tool support for ConstantDynamic
psandoz
parents: 48147
diff changeset
   622
}
c4d9d1b08e2e 8186209: Tool support for ConstantDynamic
psandoz
parents: 48147
diff changeset
   623
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   624
// Convert a char from a classfile signature to a BasicType
489c9b5090e2 Initial load
duke
parents:
diff changeset
   625
inline BasicType char2type(char c) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   626
  switch( c ) {
58722
cba8afa5cfed 8231844: Enhance type signature characters in classfile_constants.h and improve the JVM to use type signature characters more consistently
lfoltan
parents: 57978
diff changeset
   627
  case JVM_SIGNATURE_BYTE:    return T_BYTE;
cba8afa5cfed 8231844: Enhance type signature characters in classfile_constants.h and improve the JVM to use type signature characters more consistently
lfoltan
parents: 57978
diff changeset
   628
  case JVM_SIGNATURE_CHAR:    return T_CHAR;
cba8afa5cfed 8231844: Enhance type signature characters in classfile_constants.h and improve the JVM to use type signature characters more consistently
lfoltan
parents: 57978
diff changeset
   629
  case JVM_SIGNATURE_DOUBLE:  return T_DOUBLE;
cba8afa5cfed 8231844: Enhance type signature characters in classfile_constants.h and improve the JVM to use type signature characters more consistently
lfoltan
parents: 57978
diff changeset
   630
  case JVM_SIGNATURE_FLOAT:   return T_FLOAT;
cba8afa5cfed 8231844: Enhance type signature characters in classfile_constants.h and improve the JVM to use type signature characters more consistently
lfoltan
parents: 57978
diff changeset
   631
  case JVM_SIGNATURE_INT:     return T_INT;
cba8afa5cfed 8231844: Enhance type signature characters in classfile_constants.h and improve the JVM to use type signature characters more consistently
lfoltan
parents: 57978
diff changeset
   632
  case JVM_SIGNATURE_LONG:    return T_LONG;
cba8afa5cfed 8231844: Enhance type signature characters in classfile_constants.h and improve the JVM to use type signature characters more consistently
lfoltan
parents: 57978
diff changeset
   633
  case JVM_SIGNATURE_SHORT:   return T_SHORT;
cba8afa5cfed 8231844: Enhance type signature characters in classfile_constants.h and improve the JVM to use type signature characters more consistently
lfoltan
parents: 57978
diff changeset
   634
  case JVM_SIGNATURE_BOOLEAN: return T_BOOLEAN;
cba8afa5cfed 8231844: Enhance type signature characters in classfile_constants.h and improve the JVM to use type signature characters more consistently
lfoltan
parents: 57978
diff changeset
   635
  case JVM_SIGNATURE_VOID:    return T_VOID;
cba8afa5cfed 8231844: Enhance type signature characters in classfile_constants.h and improve the JVM to use type signature characters more consistently
lfoltan
parents: 57978
diff changeset
   636
  case JVM_SIGNATURE_CLASS:   return T_OBJECT;
cba8afa5cfed 8231844: Enhance type signature characters in classfile_constants.h and improve the JVM to use type signature characters more consistently
lfoltan
parents: 57978
diff changeset
   637
  case JVM_SIGNATURE_ARRAY:   return T_ARRAY;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   638
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   639
  return T_ILLEGAL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   640
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   641
489c9b5090e2 Initial load
duke
parents:
diff changeset
   642
extern char type2char_tab[T_CONFLICT+1];     // Map a BasicType to a jchar
489c9b5090e2 Initial load
duke
parents:
diff changeset
   643
inline char type2char(BasicType t) { return (uint)t < T_CONFLICT+1 ? type2char_tab[t] : 0; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   644
extern int type2size[T_CONFLICT+1];         // Map BasicType to result stack elements
489c9b5090e2 Initial load
duke
parents:
diff changeset
   645
extern const char* type2name_tab[T_CONFLICT+1];     // Map a BasicType to a jchar
489c9b5090e2 Initial load
duke
parents:
diff changeset
   646
inline const char* type2name(BasicType t) { return (uint)t < T_CONFLICT+1 ? type2name_tab[t] : NULL; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   647
extern BasicType name2type(const char* name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   648
36581
8d65a7db1582 6787054: Par compact - remove code that clears source_region
jwilhelm
parents: 35898
diff changeset
   649
// Auxiliary math routines
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   650
// least common multiple
489c9b5090e2 Initial load
duke
parents:
diff changeset
   651
extern size_t lcm(size_t a, size_t b);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   652
489c9b5090e2 Initial load
duke
parents:
diff changeset
   653
489c9b5090e2 Initial load
duke
parents:
diff changeset
   654
// NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/runtime/BasicType.java
489c9b5090e2 Initial load
duke
parents:
diff changeset
   655
enum BasicTypeSize {
13969
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   656
  T_BOOLEAN_size     = 1,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   657
  T_CHAR_size        = 1,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   658
  T_FLOAT_size       = 1,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   659
  T_DOUBLE_size      = 2,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   660
  T_BYTE_size        = 1,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   661
  T_SHORT_size       = 1,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   662
  T_INT_size         = 1,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   663
  T_LONG_size        = 2,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   664
  T_OBJECT_size      = 1,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   665
  T_ARRAY_size       = 1,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   666
  T_NARROWOOP_size   = 1,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   667
  T_NARROWKLASS_size = 1,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   668
  T_VOID_size        = 0
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   669
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   670
489c9b5090e2 Initial load
duke
parents:
diff changeset
   671
489c9b5090e2 Initial load
duke
parents:
diff changeset
   672
// maps a BasicType to its instance field storage type:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   673
// all sub-word integral types are widened to T_INT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   674
extern BasicType type2field[T_CONFLICT+1];
489c9b5090e2 Initial load
duke
parents:
diff changeset
   675
extern BasicType type2wfield[T_CONFLICT+1];
489c9b5090e2 Initial load
duke
parents:
diff changeset
   676
489c9b5090e2 Initial load
duke
parents:
diff changeset
   677
489c9b5090e2 Initial load
duke
parents:
diff changeset
   678
// size in bytes
489c9b5090e2 Initial load
duke
parents:
diff changeset
   679
enum ArrayElementSize {
13969
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   680
  T_BOOLEAN_aelem_bytes     = 1,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   681
  T_CHAR_aelem_bytes        = 2,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   682
  T_FLOAT_aelem_bytes       = 4,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   683
  T_DOUBLE_aelem_bytes      = 8,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   684
  T_BYTE_aelem_bytes        = 1,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   685
  T_SHORT_aelem_bytes       = 2,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   686
  T_INT_aelem_bytes         = 4,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   687
  T_LONG_aelem_bytes        = 8,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   688
#ifdef _LP64
13969
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   689
  T_OBJECT_aelem_bytes      = 8,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   690
  T_ARRAY_aelem_bytes       = 8,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   691
#else
13969
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   692
  T_OBJECT_aelem_bytes      = 4,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   693
  T_ARRAY_aelem_bytes       = 4,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   694
#endif
13969
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   695
  T_NARROWOOP_aelem_bytes   = 4,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   696
  T_NARROWKLASS_aelem_bytes = 4,
d2a189b83b87 7054512: Compress class pointers after perm gen removal
roland
parents: 13728
diff changeset
   697
  T_VOID_aelem_bytes        = 0
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   698
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   699
202
dc13bf0e5d5d 6633953: type2aelembytes{T_ADDRESS} should be 8 bytes in 64 bit VM
kvn
parents: 1
diff changeset
   700
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
   701
#ifdef ASSERT
dc13bf0e5d5d 6633953: type2aelembytes{T_ADDRESS} should be 8 bytes in 64 bit VM
kvn
parents: 1
diff changeset
   702
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
   703
#else
6433
b0e4fafdc38b 4809552: Optimize Arrays.fill(...)
never
parents: 6067
diff changeset
   704
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
   705
#endif
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   706
489c9b5090e2 Initial load
duke
parents:
diff changeset
   707
489c9b5090e2 Initial load
duke
parents:
diff changeset
   708
// JavaValue serves as a container for arbitrary Java values.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   709
489c9b5090e2 Initial load
duke
parents:
diff changeset
   710
class JavaValue {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   711
489c9b5090e2 Initial load
duke
parents:
diff changeset
   712
 public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   713
  typedef union JavaCallValue {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   714
    jfloat   f;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   715
    jdouble  d;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   716
    jint     i;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   717
    jlong    l;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   718
    jobject  h;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   719
  } JavaCallValue;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   720
489c9b5090e2 Initial load
duke
parents:
diff changeset
   721
 private:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   722
  BasicType _type;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   723
  JavaCallValue _value;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   724
489c9b5090e2 Initial load
duke
parents:
diff changeset
   725
 public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   726
  JavaValue(BasicType t = T_ILLEGAL) { _type = t; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   727
489c9b5090e2 Initial load
duke
parents:
diff changeset
   728
  JavaValue(jfloat value) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   729
    _type    = T_FLOAT;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   730
    _value.f = value;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   731
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   732
489c9b5090e2 Initial load
duke
parents:
diff changeset
   733
  JavaValue(jdouble value) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   734
    _type    = T_DOUBLE;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   735
    _value.d = value;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   736
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   737
489c9b5090e2 Initial load
duke
parents:
diff changeset
   738
 jfloat get_jfloat() const { return _value.f; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   739
 jdouble get_jdouble() const { return _value.d; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   740
 jint get_jint() const { return _value.i; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   741
 jlong get_jlong() const { return _value.l; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   742
 jobject get_jobject() const { return _value.h; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   743
 JavaCallValue* get_value_addr() { return &_value; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   744
 BasicType get_type() const { return _type; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   745
489c9b5090e2 Initial load
duke
parents:
diff changeset
   746
 void set_jfloat(jfloat f) { _value.f = f;}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   747
 void set_jdouble(jdouble d) { _value.d = d;}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   748
 void set_jint(jint i) { _value.i = i;}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   749
 void set_jlong(jlong l) { _value.l = l;}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   750
 void set_jobject(jobject h) { _value.h = h;}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   751
 void set_type(BasicType t) { _type = t; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   752
489c9b5090e2 Initial load
duke
parents:
diff changeset
   753
 jboolean get_jboolean() const { return (jboolean) (_value.i);}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   754
 jbyte get_jbyte() const { return (jbyte) (_value.i);}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   755
 jchar get_jchar() const { return (jchar) (_value.i);}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   756
 jshort get_jshort() const { return (jshort) (_value.i);}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   757
489c9b5090e2 Initial load
duke
parents:
diff changeset
   758
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   759
489c9b5090e2 Initial load
duke
parents:
diff changeset
   760
489c9b5090e2 Initial load
duke
parents:
diff changeset
   761
#define STACK_BIAS      0
489c9b5090e2 Initial load
duke
parents:
diff changeset
   762
// V9 Sparc CPU's running in 64 Bit mode use a stack bias of 7ff
489c9b5090e2 Initial load
duke
parents:
diff changeset
   763
// in order to extend the reach of the stack pointer.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   764
#if defined(SPARC) && defined(_LP64)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   765
#undef STACK_BIAS
489c9b5090e2 Initial load
duke
parents:
diff changeset
   766
#define STACK_BIAS      0x7ff
489c9b5090e2 Initial load
duke
parents:
diff changeset
   767
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   768
489c9b5090e2 Initial load
duke
parents:
diff changeset
   769
489c9b5090e2 Initial load
duke
parents:
diff changeset
   770
// TosState describes the top-of-stack state before and after the execution of
489c9b5090e2 Initial load
duke
parents:
diff changeset
   771
// 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
   772
// registers. The TosState corresponds to the 'machine representation' of this cached
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   773
// value. There's 4 states corresponding to the JAVA types int, long, float & double
489c9b5090e2 Initial load
duke
parents:
diff changeset
   774
// 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
   775
// of stack (in memory) and thus not cached. The atos state corresponds to the itos
489c9b5090e2 Initial load
duke
parents:
diff changeset
   776
// state when it comes to machine representation but is used separately for (oop)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   777
// type specific operations (e.g. verification code).
489c9b5090e2 Initial load
duke
parents:
diff changeset
   778
489c9b5090e2 Initial load
duke
parents:
diff changeset
   779
enum TosState {         // describes the tos cache contents
489c9b5090e2 Initial load
duke
parents:
diff changeset
   780
  btos = 0,             // byte, bool tos cached
37480
291ee208fb72 8132051: Better byte behavior
coleenp
parents: 37462
diff changeset
   781
  ztos = 1,             // byte, bool tos cached
291ee208fb72 8132051: Better byte behavior
coleenp
parents: 37462
diff changeset
   782
  ctos = 2,             // char tos cached
291ee208fb72 8132051: Better byte behavior
coleenp
parents: 37462
diff changeset
   783
  stos = 3,             // short tos cached
291ee208fb72 8132051: Better byte behavior
coleenp
parents: 37462
diff changeset
   784
  itos = 4,             // int tos cached
291ee208fb72 8132051: Better byte behavior
coleenp
parents: 37462
diff changeset
   785
  ltos = 5,             // long tos cached
291ee208fb72 8132051: Better byte behavior
coleenp
parents: 37462
diff changeset
   786
  ftos = 6,             // float tos cached
291ee208fb72 8132051: Better byte behavior
coleenp
parents: 37462
diff changeset
   787
  dtos = 7,             // double tos cached
291ee208fb72 8132051: Better byte behavior
coleenp
parents: 37462
diff changeset
   788
  atos = 8,             // object cached
291ee208fb72 8132051: Better byte behavior
coleenp
parents: 37462
diff changeset
   789
  vtos = 9,             // tos not cached
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   790
  number_of_states,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   791
  ilgl                  // illegal state: should not occur
489c9b5090e2 Initial load
duke
parents:
diff changeset
   792
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   793
489c9b5090e2 Initial load
duke
parents:
diff changeset
   794
489c9b5090e2 Initial load
duke
parents:
diff changeset
   795
inline TosState as_TosState(BasicType type) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   796
  switch (type) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   797
    case T_BYTE   : return btos;
37480
291ee208fb72 8132051: Better byte behavior
coleenp
parents: 37462
diff changeset
   798
    case T_BOOLEAN: return ztos;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   799
    case T_CHAR   : return ctos;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   800
    case T_SHORT  : return stos;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   801
    case T_INT    : return itos;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   802
    case T_LONG   : return ltos;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   803
    case T_FLOAT  : return ftos;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   804
    case T_DOUBLE : return dtos;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   805
    case T_VOID   : return vtos;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   806
    case T_ARRAY  : // fall through
489c9b5090e2 Initial load
duke
parents:
diff changeset
   807
    case T_OBJECT : return atos;
46630
75aa3e39d02c 8182299: Enable disabled clang warnings, build on OSX 10 + Xcode 8
jwilhelm
parents: 46625
diff changeset
   808
    default       : return ilgl;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   809
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   810
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   811
2570
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2534
diff changeset
   812
inline BasicType as_BasicType(TosState state) {
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2534
diff changeset
   813
  switch (state) {
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2534
diff changeset
   814
    case btos : return T_BYTE;
37480
291ee208fb72 8132051: Better byte behavior
coleenp
parents: 37462
diff changeset
   815
    case ztos : return T_BOOLEAN;
2570
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2534
diff changeset
   816
    case ctos : return T_CHAR;
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2534
diff changeset
   817
    case stos : return T_SHORT;
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2534
diff changeset
   818
    case itos : return T_INT;
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2534
diff changeset
   819
    case ltos : return T_LONG;
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2534
diff changeset
   820
    case ftos : return T_FLOAT;
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2534
diff changeset
   821
    case dtos : return T_DOUBLE;
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2534
diff changeset
   822
    case atos : return T_OBJECT;
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2534
diff changeset
   823
    case vtos : return T_VOID;
46630
75aa3e39d02c 8182299: Enable disabled clang warnings, build on OSX 10 + Xcode 8
jwilhelm
parents: 46625
diff changeset
   824
    default   : return T_ILLEGAL;
2570
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2534
diff changeset
   825
  }
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2534
diff changeset
   826
}
ecc7862946d4 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 2534
diff changeset
   827
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   828
489c9b5090e2 Initial load
duke
parents:
diff changeset
   829
// Helper function to convert BasicType info into TosState
489c9b5090e2 Initial load
duke
parents:
diff changeset
   830
// Note: Cannot define here as it uses global constant at the time being.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   831
TosState as_TosState(BasicType type);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   832
489c9b5090e2 Initial load
duke
parents:
diff changeset
   833
489c9b5090e2 Initial load
duke
parents:
diff changeset
   834
// JavaThreadState keeps track of which part of the code a thread is executing in. This
489c9b5090e2 Initial load
duke
parents:
diff changeset
   835
// information is needed by the safepoint code.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   836
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   837
// There are 4 essential states:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   838
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   839
//  _thread_new         : Just started, but not executed init. code yet (most likely still in OS init code)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   840
//  _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
   841
//  _thread_in_vm       : Executing in the vm
489c9b5090e2 Initial load
duke
parents:
diff changeset
   842
//  _thread_in_Java     : Executing either interpreted or compiled Java code (or could be in a stub)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   843
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   844
// 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
   845
// 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
   846
// handle certain thread_states without having to suspend the thread - making the safepoint code faster.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   847
//
36581
8d65a7db1582 6787054: Par compact - remove code that clears source_region
jwilhelm
parents: 35898
diff changeset
   848
// Given a state, the xxxx_trans state can always be found by adding 1.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   849
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   850
enum JavaThreadState {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   851
  _thread_uninitialized     =  0, // should never happen (missing initialization)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   852
  _thread_new               =  2, // just starting up, i.e., in process of being initialized
489c9b5090e2 Initial load
duke
parents:
diff changeset
   853
  _thread_new_trans         =  3, // corresponding transition state (not used, included for completness)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   854
  _thread_in_native         =  4, // running in native code
489c9b5090e2 Initial load
duke
parents:
diff changeset
   855
  _thread_in_native_trans   =  5, // corresponding transition state
489c9b5090e2 Initial load
duke
parents:
diff changeset
   856
  _thread_in_vm             =  6, // running in VM
489c9b5090e2 Initial load
duke
parents:
diff changeset
   857
  _thread_in_vm_trans       =  7, // corresponding transition state
489c9b5090e2 Initial load
duke
parents:
diff changeset
   858
  _thread_in_Java           =  8, // running in Java or in stub code
489c9b5090e2 Initial load
duke
parents:
diff changeset
   859
  _thread_in_Java_trans     =  9, // corresponding transition state (not used, included for completness)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   860
  _thread_blocked           = 10, // blocked in vm
489c9b5090e2 Initial load
duke
parents:
diff changeset
   861
  _thread_blocked_trans     = 11, // corresponding transition state
489c9b5090e2 Initial load
duke
parents:
diff changeset
   862
  _thread_max_state         = 12  // maximum thread state+1 - used for statistics allocation
489c9b5090e2 Initial load
duke
parents:
diff changeset
   863
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   864
489c9b5090e2 Initial load
duke
parents:
diff changeset
   865
//----------------------------------------------------------------------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
   866
// Special constants for debugging
489c9b5090e2 Initial load
duke
parents:
diff changeset
   867
489c9b5090e2 Initial load
duke
parents:
diff changeset
   868
const jint     badInt           = -3;                       // generic "bad int" value
49026
844bf1deff1a 8196884: VS2017 Multiple Type Cast Conversion Compilation Errors
lfoltan
parents: 49011
diff changeset
   869
const intptr_t badAddressVal    = -2;                       // generic "bad address" value
844bf1deff1a 8196884: VS2017 Multiple Type Cast Conversion Compilation Errors
lfoltan
parents: 49011
diff changeset
   870
const intptr_t badOopVal        = -1;                       // generic "bad oop" value
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   871
const intptr_t badHeapOopVal    = (intptr_t) CONST64(0x2BAD4B0BBAADBABE); // value used to zap heap after GC
46682
b646732e1473 8184762: ZapStackSegments should use optimized memset
shade
parents: 46630
diff changeset
   872
const int      badStackSegVal   = 0xCA;                     // value used to zap stack segments
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   873
const int      badHandleValue   = 0xBC;                     // value used to zap vm handle area
489c9b5090e2 Initial load
duke
parents:
diff changeset
   874
const int      badResourceValue = 0xAB;                     // value used to zap resource area
489c9b5090e2 Initial load
duke
parents:
diff changeset
   875
const int      freeBlockPad     = 0xBA;                     // value used to pad freed blocks.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   876
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
   877
const juint    uninitMetaWordVal= 0xf7f7f7f7;               // value used to zap newly allocated metachunk
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   878
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
   879
const juint    badMetaWordVal   = 0xBAADFADE;               // value used to zap metadata heap after GC
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   880
const int      badCodeHeapNewVal= 0xCC;                     // value used to zap Code heap at allocation
489c9b5090e2 Initial load
duke
parents:
diff changeset
   881
const int      badCodeHeapFreeVal = 0xDD;                   // value used to zap Code heap at deallocation
489c9b5090e2 Initial load
duke
parents:
diff changeset
   882
489c9b5090e2 Initial load
duke
parents:
diff changeset
   883
489c9b5090e2 Initial load
duke
parents:
diff changeset
   884
// (These must be implemented as #defines because C++ compilers are
489c9b5090e2 Initial load
duke
parents:
diff changeset
   885
// not obligated to inline non-integral constants!)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   886
#define       badAddress        ((address)::badAddressVal)
20282
7f9cbdf89af2 7195622: CheckUnhandledOops has limited usefulness now
hseigel
parents: 19546
diff changeset
   887
#define       badOop            (cast_to_oop(::badOopVal))
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   888
#define       badHeapWord       (::badHeapWordVal)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   889
5076
8b74a4b60b31 4396719: Mark Sweep stack overflow on deeply nested Object arrays
jcoomes
parents: 4902
diff changeset
   890
// 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
   891
#define TASKQUEUE_SIZE (NOT_LP64(1<<14) LP64_ONLY(1<<17))
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   892
489c9b5090e2 Initial load
duke
parents:
diff changeset
   893
//----------------------------------------------------------------------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
   894
// Utility functions for bitfield manipulations
489c9b5090e2 Initial load
duke
parents:
diff changeset
   895
489c9b5090e2 Initial load
duke
parents:
diff changeset
   896
const intptr_t AllBits    = ~0; // all bits set in a word
489c9b5090e2 Initial load
duke
parents:
diff changeset
   897
const intptr_t NoBits     =  0; // no bits set in a word
489c9b5090e2 Initial load
duke
parents:
diff changeset
   898
const jlong    NoLongBits =  0; // no bits set in a long
489c9b5090e2 Initial load
duke
parents:
diff changeset
   899
const intptr_t OneBit     =  1; // only right_most bit set in a word
489c9b5090e2 Initial load
duke
parents:
diff changeset
   900
489c9b5090e2 Initial load
duke
parents:
diff changeset
   901
// get a word with the n.th or the right-most or left-most n bits set
489c9b5090e2 Initial load
duke
parents:
diff changeset
   902
// (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
   903
#define nth_bit(n)        (((n) >= BitsPerWord) ? 0 : (OneBit << (n)))
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   904
#define right_n_bits(n)   (nth_bit(n) - 1)
37056
109f610020fa 8150617: nth_bit and friends are broken
stefank
parents: 36581
diff changeset
   905
#define left_n_bits(n)    (right_n_bits(n) << (((n) >= BitsPerWord) ? 0 : (BitsPerWord - (n))))
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   906
489c9b5090e2 Initial load
duke
parents:
diff changeset
   907
// bit-operations using a mask m
489c9b5090e2 Initial load
duke
parents:
diff changeset
   908
inline void   set_bits    (intptr_t& x, intptr_t m) { x |= m; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   909
inline void clear_bits    (intptr_t& x, intptr_t m) { x &= ~m; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   910
inline intptr_t mask_bits      (intptr_t  x, intptr_t m) { return x & m; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   911
inline jlong    mask_long_bits (jlong     x, jlong    m) { return x & m; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   912
inline bool mask_bits_are_true (intptr_t flags, intptr_t mask) { return (flags & mask) == mask; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   913
489c9b5090e2 Initial load
duke
parents:
diff changeset
   914
// bit-operations using the n.th bit
489c9b5090e2 Initial load
duke
parents:
diff changeset
   915
inline void    set_nth_bit(intptr_t& x, int n) { set_bits  (x, nth_bit(n)); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   916
inline void  clear_nth_bit(intptr_t& x, int n) { clear_bits(x, nth_bit(n)); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   917
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
   918
489c9b5090e2 Initial load
duke
parents:
diff changeset
   919
// returns the bitfield of x starting at start_bit_no with length field_length (no sign-extension!)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   920
inline intptr_t bitfield(intptr_t x, int start_bit_no, int field_length) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   921
  return mask_bits(x >> start_bit_no, right_n_bits(field_length));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   922
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   923
489c9b5090e2 Initial load
duke
parents:
diff changeset
   924
489c9b5090e2 Initial load
duke
parents:
diff changeset
   925
//----------------------------------------------------------------------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
   926
// Utility functions for integers
489c9b5090e2 Initial load
duke
parents:
diff changeset
   927
489c9b5090e2 Initial load
duke
parents:
diff changeset
   928
// Avoid use of global min/max macros which may cause unwanted double
489c9b5090e2 Initial load
duke
parents:
diff changeset
   929
// evaluation of arguments.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   930
#ifdef max
489c9b5090e2 Initial load
duke
parents:
diff changeset
   931
#undef max
489c9b5090e2 Initial load
duke
parents:
diff changeset
   932
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   933
489c9b5090e2 Initial load
duke
parents:
diff changeset
   934
#ifdef min
489c9b5090e2 Initial load
duke
parents:
diff changeset
   935
#undef min
489c9b5090e2 Initial load
duke
parents:
diff changeset
   936
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   937
489c9b5090e2 Initial load
duke
parents:
diff changeset
   938
// It is necessary to use templates here. Having normal overloaded
489c9b5090e2 Initial load
duke
parents:
diff changeset
   939
// functions does not work because it is necessary to provide both 32-
489c9b5090e2 Initial load
duke
parents:
diff changeset
   940
// and 64-bit overloaded functions, which does not work, and having
489c9b5090e2 Initial load
duke
parents:
diff changeset
   941
// explicitly-typed versions of these routines (i.e., MAX2I, MAX2L)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   942
// will be even more error-prone than macros.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   943
template<class T> inline T MAX2(T a, T b)           { return (a > b) ? a : b; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   944
template<class T> inline T MIN2(T a, T b)           { return (a < b) ? a : b; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   945
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
   946
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
   947
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
   948
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
   949
489c9b5090e2 Initial load
duke
parents:
diff changeset
   950
template<class T> inline T ABS(T x)                 { return (x > 0) ? x : -x; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   951
489c9b5090e2 Initial load
duke
parents:
diff changeset
   952
// true if x is a power of 2, false otherwise
489c9b5090e2 Initial load
duke
parents:
diff changeset
   953
inline bool is_power_of_2(intptr_t x) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   954
  return ((x != NoBits) && (mask_bits(x, x - 1) == NoBits));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   955
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   956
489c9b5090e2 Initial load
duke
parents:
diff changeset
   957
// long version of is_power_of_2
489c9b5090e2 Initial load
duke
parents:
diff changeset
   958
inline bool is_power_of_2_long(jlong x) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   959
  return ((x != NoLongBits) && (mask_long_bits(x, x - 1) == NoLongBits));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   960
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   961
28650
772aaab2582f 8059606: Enable per-method usage of CompileThresholdScaling (per-method compilation thresholds)
zmajo
parents: 28372
diff changeset
   962
// 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
   963
// If x == 0, the function returns -1.
52632
1089e8fd8439 8213419: C2 may hang in MulLNode::Ideal()/MulINode::Ideal() with gcc 8.2.1
roland
parents: 52631
diff changeset
   964
inline int log2_intptr(uintptr_t x) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   965
  int i = -1;
28650
772aaab2582f 8059606: Enable per-method usage of CompileThresholdScaling (per-method compilation thresholds)
zmajo
parents: 28372
diff changeset
   966
  uintptr_t p = 1;
52632
1089e8fd8439 8213419: C2 may hang in MulLNode::Ideal()/MulINode::Ideal() with gcc 8.2.1
roland
parents: 52631
diff changeset
   967
  while (p != 0 && p <= x) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   968
    // p = 2^(i+1) && p <= x (i.e., 2^(i+1) <= x)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   969
    i++; p *= 2;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   970
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   971
  // 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
   972
  // 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
   973
  return i;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   974
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   975
489c9b5090e2 Initial load
duke
parents:
diff changeset
   976
//* largest i such that 2^i <= x
52675
7d3cde494494 8214206: Fix for JDK-8213419 is broken on 32-bit
roland
parents: 52632
diff changeset
   977
inline int log2_long(julong x) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   978
  int i = -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   979
  julong p =  1;
52632
1089e8fd8439 8213419: C2 may hang in MulLNode::Ideal()/MulINode::Ideal() with gcc 8.2.1
roland
parents: 52631
diff changeset
   980
  while (p != 0 && p <= x) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   981
    // p = 2^(i+1) && p <= x (i.e., 2^(i+1) <= x)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   982
    i++; p *= 2;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   983
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   984
  // p = 2^(i+1) && x < p (i.e., 2^i <= x < 2^(i+1))
2131
98f9cef66a34 6810672: Comment typos
twisti
parents: 2034
diff changeset
   985
  // (if p = 0 then overflow occurred and i = 63)
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   986
  return i;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   987
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   988
52675
7d3cde494494 8214206: Fix for JDK-8213419 is broken on 32-bit
roland
parents: 52632
diff changeset
   989
// If x < 0, the function returns 31 on a 32-bit machine and 63 on a 64-bit machine.
52632
1089e8fd8439 8213419: C2 may hang in MulLNode::Ideal()/MulINode::Ideal() with gcc 8.2.1
roland
parents: 52631
diff changeset
   990
inline int log2_intptr(intptr_t x) {
1089e8fd8439 8213419: C2 may hang in MulLNode::Ideal()/MulINode::Ideal() with gcc 8.2.1
roland
parents: 52631
diff changeset
   991
  return log2_intptr((uintptr_t)x);
1089e8fd8439 8213419: C2 may hang in MulLNode::Ideal()/MulINode::Ideal() with gcc 8.2.1
roland
parents: 52631
diff changeset
   992
}
1089e8fd8439 8213419: C2 may hang in MulLNode::Ideal()/MulINode::Ideal() with gcc 8.2.1
roland
parents: 52631
diff changeset
   993
52675
7d3cde494494 8214206: Fix for JDK-8213419 is broken on 32-bit
roland
parents: 52632
diff changeset
   994
inline int log2_int(int x) {
7d3cde494494 8214206: Fix for JDK-8213419 is broken on 32-bit
roland
parents: 52632
diff changeset
   995
  STATIC_ASSERT(sizeof(int) <= sizeof(uintptr_t));
7d3cde494494 8214206: Fix for JDK-8213419 is broken on 32-bit
roland
parents: 52632
diff changeset
   996
  return log2_intptr((uintptr_t)x);
7d3cde494494 8214206: Fix for JDK-8213419 is broken on 32-bit
roland
parents: 52632
diff changeset
   997
}
7d3cde494494 8214206: Fix for JDK-8213419 is broken on 32-bit
roland
parents: 52632
diff changeset
   998
7d3cde494494 8214206: Fix for JDK-8213419 is broken on 32-bit
roland
parents: 52632
diff changeset
   999
inline int log2_jint(jint x) {
7d3cde494494 8214206: Fix for JDK-8213419 is broken on 32-bit
roland
parents: 52632
diff changeset
  1000
  STATIC_ASSERT(sizeof(jint) <= sizeof(uintptr_t));
52632
1089e8fd8439 8213419: C2 may hang in MulLNode::Ideal()/MulINode::Ideal() with gcc 8.2.1
roland
parents: 52631
diff changeset
  1001
  return log2_intptr((uintptr_t)x);
1089e8fd8439 8213419: C2 may hang in MulLNode::Ideal()/MulINode::Ideal() with gcc 8.2.1
roland
parents: 52631
diff changeset
  1002
}
1089e8fd8439 8213419: C2 may hang in MulLNode::Ideal()/MulINode::Ideal() with gcc 8.2.1
roland
parents: 52631
diff changeset
  1003
52675
7d3cde494494 8214206: Fix for JDK-8213419 is broken on 32-bit
roland
parents: 52632
diff changeset
  1004
inline int log2_uint(uint x) {
7d3cde494494 8214206: Fix for JDK-8213419 is broken on 32-bit
roland
parents: 52632
diff changeset
  1005
  STATIC_ASSERT(sizeof(uint) <= sizeof(uintptr_t));
52632
1089e8fd8439 8213419: C2 may hang in MulLNode::Ideal()/MulINode::Ideal() with gcc 8.2.1
roland
parents: 52631
diff changeset
  1006
  return log2_intptr((uintptr_t)x);
1089e8fd8439 8213419: C2 may hang in MulLNode::Ideal()/MulINode::Ideal() with gcc 8.2.1
roland
parents: 52631
diff changeset
  1007
}
1089e8fd8439 8213419: C2 may hang in MulLNode::Ideal()/MulINode::Ideal() with gcc 8.2.1
roland
parents: 52631
diff changeset
  1008
52675
7d3cde494494 8214206: Fix for JDK-8213419 is broken on 32-bit
roland
parents: 52632
diff changeset
  1009
//  A negative value of 'x' will return '63'
7d3cde494494 8214206: Fix for JDK-8213419 is broken on 32-bit
roland
parents: 52632
diff changeset
  1010
inline int log2_jlong(jlong x) {
7d3cde494494 8214206: Fix for JDK-8213419 is broken on 32-bit
roland
parents: 52632
diff changeset
  1011
  STATIC_ASSERT(sizeof(jlong) <= sizeof(julong));
7d3cde494494 8214206: Fix for JDK-8213419 is broken on 32-bit
roland
parents: 52632
diff changeset
  1012
  return log2_long((julong)x);
52632
1089e8fd8439 8213419: C2 may hang in MulLNode::Ideal()/MulINode::Ideal() with gcc 8.2.1
roland
parents: 52631
diff changeset
  1013
}
1089e8fd8439 8213419: C2 may hang in MulLNode::Ideal()/MulINode::Ideal() with gcc 8.2.1
roland
parents: 52631
diff changeset
  1014
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1015
//* the argument must be exactly a power of 2
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1016
inline int exact_log2(intptr_t x) {
46560
388aa8d67c80 8181449: Fix debug.hpp / globalDefinitions.hpp dependency inversion
kbarrett
parents: 46554
diff changeset
  1017
  assert(is_power_of_2(x), "x must be a power of 2: " INTPTR_FORMAT, x);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1018
  return log2_intptr(x);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1019
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1020
2032
1e27661bff28 6805724: ModLNode::Ideal() generates functionally incorrect graph when divisor is any (2^k-1) constant.
twisti
parents: 2023
diff changeset
  1021
//* 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
  1022
inline int exact_log2_long(jlong x) {
46560
388aa8d67c80 8181449: Fix debug.hpp / globalDefinitions.hpp dependency inversion
kbarrett
parents: 46554
diff changeset
  1023
  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
  1024
  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
  1025
}
1e27661bff28 6805724: ModLNode::Ideal() generates functionally incorrect graph when divisor is any (2^k-1) constant.
twisti
parents: 2023
diff changeset
  1026
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1027
inline bool is_odd (intx x) { return x & 1;      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1028
inline bool is_even(intx x) { return !is_odd(x); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1029
52632
1089e8fd8439 8213419: C2 may hang in MulLNode::Ideal()/MulINode::Ideal() with gcc 8.2.1
roland
parents: 52631
diff changeset
  1030
// abs methods which cannot overflow and so are well-defined across
1089e8fd8439 8213419: C2 may hang in MulLNode::Ideal()/MulINode::Ideal() with gcc 8.2.1
roland
parents: 52631
diff changeset
  1031
// the entire domain of integer types.
1089e8fd8439 8213419: C2 may hang in MulLNode::Ideal()/MulINode::Ideal() with gcc 8.2.1
roland
parents: 52631
diff changeset
  1032
static inline unsigned int uabs(unsigned int n) {
1089e8fd8439 8213419: C2 may hang in MulLNode::Ideal()/MulINode::Ideal() with gcc 8.2.1
roland
parents: 52631
diff changeset
  1033
  union {
1089e8fd8439 8213419: C2 may hang in MulLNode::Ideal()/MulINode::Ideal() with gcc 8.2.1
roland
parents: 52631
diff changeset
  1034
    unsigned int result;
1089e8fd8439 8213419: C2 may hang in MulLNode::Ideal()/MulINode::Ideal() with gcc 8.2.1
roland
parents: 52631
diff changeset
  1035
    int value;
1089e8fd8439 8213419: C2 may hang in MulLNode::Ideal()/MulINode::Ideal() with gcc 8.2.1
roland
parents: 52631
diff changeset
  1036
  };
1089e8fd8439 8213419: C2 may hang in MulLNode::Ideal()/MulINode::Ideal() with gcc 8.2.1
roland
parents: 52631
diff changeset
  1037
  result = n;
1089e8fd8439 8213419: C2 may hang in MulLNode::Ideal()/MulINode::Ideal() with gcc 8.2.1
roland
parents: 52631
diff changeset
  1038
  if (value < 0) result = 0-result;
1089e8fd8439 8213419: C2 may hang in MulLNode::Ideal()/MulINode::Ideal() with gcc 8.2.1
roland
parents: 52631
diff changeset
  1039
  return result;
1089e8fd8439 8213419: C2 may hang in MulLNode::Ideal()/MulINode::Ideal() with gcc 8.2.1
roland
parents: 52631
diff changeset
  1040
}
52693
0037ea3c7322 8214189: test/hotspot/jtreg/compiler/intrinsics/mathexact/MulExactLConstantTest.java fails on Windows x64 when run with -XX:-TieredCompilation
roland
parents: 52675
diff changeset
  1041
static inline julong uabs(julong n) {
52632
1089e8fd8439 8213419: C2 may hang in MulLNode::Ideal()/MulINode::Ideal() with gcc 8.2.1
roland
parents: 52631
diff changeset
  1042
  union {
52693
0037ea3c7322 8214189: test/hotspot/jtreg/compiler/intrinsics/mathexact/MulExactLConstantTest.java fails on Windows x64 when run with -XX:-TieredCompilation
roland
parents: 52675
diff changeset
  1043
    julong result;
0037ea3c7322 8214189: test/hotspot/jtreg/compiler/intrinsics/mathexact/MulExactLConstantTest.java fails on Windows x64 when run with -XX:-TieredCompilation
roland
parents: 52675
diff changeset
  1044
    jlong value;
52632
1089e8fd8439 8213419: C2 may hang in MulLNode::Ideal()/MulINode::Ideal() with gcc 8.2.1
roland
parents: 52631
diff changeset
  1045
  };
1089e8fd8439 8213419: C2 may hang in MulLNode::Ideal()/MulINode::Ideal() with gcc 8.2.1
roland
parents: 52631
diff changeset
  1046
  result = n;
1089e8fd8439 8213419: C2 may hang in MulLNode::Ideal()/MulINode::Ideal() with gcc 8.2.1
roland
parents: 52631
diff changeset
  1047
  if (value < 0) result = 0-result;
1089e8fd8439 8213419: C2 may hang in MulLNode::Ideal()/MulINode::Ideal() with gcc 8.2.1
roland
parents: 52631
diff changeset
  1048
  return result;
1089e8fd8439 8213419: C2 may hang in MulLNode::Ideal()/MulINode::Ideal() with gcc 8.2.1
roland
parents: 52631
diff changeset
  1049
}
52693
0037ea3c7322 8214189: test/hotspot/jtreg/compiler/intrinsics/mathexact/MulExactLConstantTest.java fails on Windows x64 when run with -XX:-TieredCompilation
roland
parents: 52675
diff changeset
  1050
static inline julong uabs(jlong n) { return uabs((julong)n); }
52632
1089e8fd8439 8213419: C2 may hang in MulLNode::Ideal()/MulINode::Ideal() with gcc 8.2.1
roland
parents: 52631
diff changeset
  1051
static inline unsigned int uabs(int n) { return uabs((unsigned int)n); }
1089e8fd8439 8213419: C2 may hang in MulLNode::Ideal()/MulINode::Ideal() with gcc 8.2.1
roland
parents: 52631
diff changeset
  1052
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1053
// "to" should be greater than "from."
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1054
inline intx byte_size(void* from, void* to) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1055
  return (address)to - (address)from;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1056
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1057
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1058
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1059
// Pack and extract shorts to/from ints:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1060
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1061
inline int extract_low_short_from_int(jint x) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1062
  return x & 0xffff;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1063
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1064
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1065
inline int extract_high_short_from_int(jint x) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1066
  return (x >> 16) & 0xffff;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1067
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1068
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1069
inline int build_int_from_shorts( jushort low, jushort high ) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1070
  return ((int)((unsigned int)high << 16) | (unsigned int)low);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1071
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1072
24424
2658d7834c6e 8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents: 24092
diff changeset
  1073
// 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
  1074
inline intptr_t p2i(const void * p) {
2658d7834c6e 8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents: 24092
diff changeset
  1075
  return (intptr_t) p;
2658d7834c6e 8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents: 24092
diff changeset
  1076
}
2658d7834c6e 8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents: 24092
diff changeset
  1077
30183
a6588c0a3259 8073480: C2 should optimize explicit range checks
roland
parents: 29193
diff changeset
  1078
// swap a & b
a6588c0a3259 8073480: C2 should optimize explicit range checks
roland
parents: 29193
diff changeset
  1079
template<class T> static void swap(T& a, T& b) {
a6588c0a3259 8073480: C2 should optimize explicit range checks
roland
parents: 29193
diff changeset
  1080
  T tmp = a;
a6588c0a3259 8073480: C2 should optimize explicit range checks
roland
parents: 29193
diff changeset
  1081
  a = b;
a6588c0a3259 8073480: C2 should optimize explicit range checks
roland
parents: 29193
diff changeset
  1082
  b = tmp;
a6588c0a3259 8073480: C2 should optimize explicit range checks
roland
parents: 29193
diff changeset
  1083
}
a6588c0a3259 8073480: C2 should optimize explicit range checks
roland
parents: 29193
diff changeset
  1084
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1085
#define ARRAY_SIZE(array) (sizeof(array)/sizeof((array)[0]))
7397
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6459
diff changeset
  1086
35155
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1087
//----------------------------------------------------------------------------------------------------
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1088
// Sum and product which can never overflow: they wrap, just like the
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1089
// Java operations.  Note that we don't intend these to be used for
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1090
// general-purpose arithmetic: their purpose is to emulate Java
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1091
// operations.
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1092
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1093
// 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
  1094
// behavior.  The use of an lvalue to reference cast is explicitly
35155
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1095
// permitted by Lvalues and rvalues [basic.lval].  [Section 3.10 Para
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1096
// 15 in C++03]
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1097
#define JAVA_INTEGER_OP(OP, NAME, TYPE, UNSIGNED_TYPE)  \
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1098
inline TYPE NAME (TYPE in1, TYPE in2) {                 \
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1099
  UNSIGNED_TYPE ures = static_cast<UNSIGNED_TYPE>(in1); \
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1100
  ures OP ## = static_cast<UNSIGNED_TYPE>(in2);         \
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1101
  return reinterpret_cast<TYPE&>(ures);                 \
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1102
}
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1103
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1104
JAVA_INTEGER_OP(+, java_add, jint, juint)
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1105
JAVA_INTEGER_OP(-, java_subtract, jint, juint)
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1106
JAVA_INTEGER_OP(*, java_multiply, jint, juint)
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1107
JAVA_INTEGER_OP(+, java_add, jlong, julong)
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1108
JAVA_INTEGER_OP(-, java_subtract, jlong, julong)
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1109
JAVA_INTEGER_OP(*, java_multiply, jlong, julong)
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1110
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1111
#undef JAVA_INTEGER_OP
db692d3ebbcc 8145096: Undefined behaviour in HotSpot
aph
parents: 34666
diff changeset
  1112
55252
6502d6a92fe2 8224162: assert(profile.count() == 0) failed: sanity in InlineTree::is_not_reached
jiefu
parents: 55024
diff changeset
  1113
//----------------------------------------------------------------------------------------------------
6502d6a92fe2 8224162: assert(profile.count() == 0) failed: sanity in InlineTree::is_not_reached
jiefu
parents: 55024
diff changeset
  1114
// The goal of this code is to provide saturating operations for int/uint.
6502d6a92fe2 8224162: assert(profile.count() == 0) failed: sanity in InlineTree::is_not_reached
jiefu
parents: 55024
diff changeset
  1115
// Checks overflow conditions and saturates the result to min_jint/max_jint.
6502d6a92fe2 8224162: assert(profile.count() == 0) failed: sanity in InlineTree::is_not_reached
jiefu
parents: 55024
diff changeset
  1116
#define SATURATED_INTEGER_OP(OP, NAME, TYPE1, TYPE2) \
6502d6a92fe2 8224162: assert(profile.count() == 0) failed: sanity in InlineTree::is_not_reached
jiefu
parents: 55024
diff changeset
  1117
inline int NAME (TYPE1 in1, TYPE2 in2) {             \
6502d6a92fe2 8224162: assert(profile.count() == 0) failed: sanity in InlineTree::is_not_reached
jiefu
parents: 55024
diff changeset
  1118
  jlong res = static_cast<jlong>(in1);               \
6502d6a92fe2 8224162: assert(profile.count() == 0) failed: sanity in InlineTree::is_not_reached
jiefu
parents: 55024
diff changeset
  1119
  res OP ## = static_cast<jlong>(in2);               \
6502d6a92fe2 8224162: assert(profile.count() == 0) failed: sanity in InlineTree::is_not_reached
jiefu
parents: 55024
diff changeset
  1120
  if (res > max_jint) {                              \
6502d6a92fe2 8224162: assert(profile.count() == 0) failed: sanity in InlineTree::is_not_reached
jiefu
parents: 55024
diff changeset
  1121
    res = max_jint;                                  \
6502d6a92fe2 8224162: assert(profile.count() == 0) failed: sanity in InlineTree::is_not_reached
jiefu
parents: 55024
diff changeset
  1122
  } else if (res < min_jint) {                       \
6502d6a92fe2 8224162: assert(profile.count() == 0) failed: sanity in InlineTree::is_not_reached
jiefu
parents: 55024
diff changeset
  1123
    res = min_jint;                                  \
6502d6a92fe2 8224162: assert(profile.count() == 0) failed: sanity in InlineTree::is_not_reached
jiefu
parents: 55024
diff changeset
  1124
  }                                                  \
6502d6a92fe2 8224162: assert(profile.count() == 0) failed: sanity in InlineTree::is_not_reached
jiefu
parents: 55024
diff changeset
  1125
  return static_cast<int>(res);                      \
6502d6a92fe2 8224162: assert(profile.count() == 0) failed: sanity in InlineTree::is_not_reached
jiefu
parents: 55024
diff changeset
  1126
}
6502d6a92fe2 8224162: assert(profile.count() == 0) failed: sanity in InlineTree::is_not_reached
jiefu
parents: 55024
diff changeset
  1127
6502d6a92fe2 8224162: assert(profile.count() == 0) failed: sanity in InlineTree::is_not_reached
jiefu
parents: 55024
diff changeset
  1128
SATURATED_INTEGER_OP(+, saturated_add, int, int)
6502d6a92fe2 8224162: assert(profile.count() == 0) failed: sanity in InlineTree::is_not_reached
jiefu
parents: 55024
diff changeset
  1129
SATURATED_INTEGER_OP(+, saturated_add, int, uint)
6502d6a92fe2 8224162: assert(profile.count() == 0) failed: sanity in InlineTree::is_not_reached
jiefu
parents: 55024
diff changeset
  1130
SATURATED_INTEGER_OP(+, saturated_add, uint, int)
6502d6a92fe2 8224162: assert(profile.count() == 0) failed: sanity in InlineTree::is_not_reached
jiefu
parents: 55024
diff changeset
  1131
SATURATED_INTEGER_OP(+, saturated_add, uint, uint)
6502d6a92fe2 8224162: assert(profile.count() == 0) failed: sanity in InlineTree::is_not_reached
jiefu
parents: 55024
diff changeset
  1132
6502d6a92fe2 8224162: assert(profile.count() == 0) failed: sanity in InlineTree::is_not_reached
jiefu
parents: 55024
diff changeset
  1133
#undef SATURATED_INTEGER_OP
6502d6a92fe2 8224162: assert(profile.count() == 0) failed: sanity in InlineTree::is_not_reached
jiefu
parents: 55024
diff changeset
  1134
14579
7f6ce6e3dd80 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 14487
diff changeset
  1135
// Dereference vptr
7f6ce6e3dd80 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 14487
diff changeset
  1136
// 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
  1137
// 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
  1138
// specific.
24457
0e20b36df5c4 8038212: Method::is_valid_method() check has performance regression impact for stackwalking
coleenp
parents: 24424
diff changeset
  1139
static inline void* dereference_vptr(const void* addr) {
14579
7f6ce6e3dd80 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 14487
diff changeset
  1140
  return *(void**)addr;
7f6ce6e3dd80 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 14487
diff changeset
  1141
}
7f6ce6e3dd80 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 14487
diff changeset
  1142
49902
3661f31c6df4 8202150: [REDO] Split globals.hpp to factor out the Flag class
gziemski
parents: 49860
diff changeset
  1143
//----------------------------------------------------------------------------------------------------
3661f31c6df4 8202150: [REDO] Split globals.hpp to factor out the Flag class
gziemski
parents: 49860
diff changeset
  1144
// String type aliases used by command line flag declarations and
3661f31c6df4 8202150: [REDO] Split globals.hpp to factor out the Flag class
gziemski
parents: 49860
diff changeset
  1145
// processing utilities.
3661f31c6df4 8202150: [REDO] Split globals.hpp to factor out the Flag class
gziemski
parents: 49860
diff changeset
  1146
3661f31c6df4 8202150: [REDO] Split globals.hpp to factor out the Flag class
gziemski
parents: 49860
diff changeset
  1147
typedef const char* ccstr;
3661f31c6df4 8202150: [REDO] Split globals.hpp to factor out the Flag class
gziemski
parents: 49860
diff changeset
  1148
typedef const char* ccstrlist;   // represents string arguments which accumulate
3661f31c6df4 8202150: [REDO] Split globals.hpp to factor out the Flag class
gziemski
parents: 49860
diff changeset
  1149
52631
3009ca99de32 8213587: Speed up CDS dump time by using resizable hashtables
iklam
parents: 52460
diff changeset
  1150
//----------------------------------------------------------------------------------------------------
3009ca99de32 8213587: Speed up CDS dump time by using resizable hashtables
iklam
parents: 52460
diff changeset
  1151
// Default hash/equals functions used by ResourceHashtable and KVHashtable
3009ca99de32 8213587: Speed up CDS dump time by using resizable hashtables
iklam
parents: 52460
diff changeset
  1152
3009ca99de32 8213587: Speed up CDS dump time by using resizable hashtables
iklam
parents: 52460
diff changeset
  1153
template<typename K> unsigned primitive_hash(const K& k) {
3009ca99de32 8213587: Speed up CDS dump time by using resizable hashtables
iklam
parents: 52460
diff changeset
  1154
  unsigned hash = (unsigned)((uintptr_t)k);
3009ca99de32 8213587: Speed up CDS dump time by using resizable hashtables
iklam
parents: 52460
diff changeset
  1155
  return hash ^ (hash >> 3); // just in case we're dealing with aligned ptrs
3009ca99de32 8213587: Speed up CDS dump time by using resizable hashtables
iklam
parents: 52460
diff changeset
  1156
}
3009ca99de32 8213587: Speed up CDS dump time by using resizable hashtables
iklam
parents: 52460
diff changeset
  1157
3009ca99de32 8213587: Speed up CDS dump time by using resizable hashtables
iklam
parents: 52460
diff changeset
  1158
template<typename K> bool primitive_equals(const K& k0, const K& k1) {
3009ca99de32 8213587: Speed up CDS dump time by using resizable hashtables
iklam
parents: 52460
diff changeset
  1159
  return k0 == k1;
3009ca99de32 8213587: Speed up CDS dump time by using resizable hashtables
iklam
parents: 52460
diff changeset
  1160
}
3009ca99de32 8213587: Speed up CDS dump time by using resizable hashtables
iklam
parents: 52460
diff changeset
  1161
3009ca99de32 8213587: Speed up CDS dump time by using resizable hashtables
iklam
parents: 52460
diff changeset
  1162
53244
9807daeb47c4 8216167: Update include guards to reflect correct directories
coleenp
parents: 53149
diff changeset
  1163
#endif // SHARE_UTILITIES_GLOBALDEFINITIONS_HPP