Mercurial > hg > truffle

comparison src/share/vm/utilities/bitMap.cpp @ 14518:d8041d695d19

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Merged with jdk9/dev/hotspot changeset 3812c088b945
author twisti
date Tue, 11 Mar 2014 18:45:59 -0700
parents 8a9bb7821e28
children 4ca6dc0799b6 78bbf4d43a14
comparison
equal deleted inserted replaced
14141:f97c5ec83832 14518:d8041d695d19
1 /* 1 /*
2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
33 # include "os_solaris.inline.hpp" 33 # include "os_solaris.inline.hpp"
34 #endif 34 #endif
35 #ifdef TARGET_OS_FAMILY_windows 35 #ifdef TARGET_OS_FAMILY_windows
36 # include "os_windows.inline.hpp" 36 # include "os_windows.inline.hpp"
37 #endif 37 #endif
38 #ifdef TARGET_OS_FAMILY_aix
39 # include "os_aix.inline.hpp"
40 #endif
38 #ifdef TARGET_OS_FAMILY_bsd 41 #ifdef TARGET_OS_FAMILY_bsd
39 # include "os_bsd.inline.hpp" 42 # include "os_bsd.inline.hpp"
40 #endif 43 #endif
41 44
42 45
105 intptr_t mr = (intptr_t)inverted_bit_mask_for_range(beg, end); 108 intptr_t mr = (intptr_t)inverted_bit_mask_for_range(beg, end);
106 intptr_t nw = value ? (w | ~mr) : (w & mr); 109 intptr_t nw = value ? (w | ~mr) : (w & mr);
107 while (true) { 110 while (true) {
108 intptr_t res = Atomic::cmpxchg_ptr(nw, pw, w); 111 intptr_t res = Atomic::cmpxchg_ptr(nw, pw, w);
109 if (res == w) break; 112 if (res == w) break;
110 w = *pw; 113 w = res;
111 nw = value ? (w | ~mr) : (w & mr); 114 nw = value ? (w | ~mr) : (w & mr);
112 } 115 }
113 } 116 }
114 } 117 }
115 118