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## src/share/vm/code/compressedStream.cpp

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*** 1,7 **** /* ! * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. --- 1,7 ---- /* ! * Copyright (c) 1997, 2017, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation.
*** 37,49 **** // 32-bit self-inverse encoding of float bits // converts trailing zeroes (common in floats) to leading zeroes inline juint CompressedStream::reverse_int(juint i) { // Hacker's Delight, Figure 7-1 ! i = (i & 0x55555555) << 1 | (i >> 1) & 0x55555555; ! i = (i & 0x33333333) << 2 | (i >> 2) & 0x33333333; ! i = (i & 0x0f0f0f0f) << 4 | (i >> 4) & 0x0f0f0f0f; i = (i << 24) | ((i & 0xff00) << 8) | ((i >> 8) & 0xff00) | (i >> 24); return i; } --- 37,49 ---- // 32-bit self-inverse encoding of float bits // converts trailing zeroes (common in floats) to leading zeroes inline juint CompressedStream::reverse_int(juint i) { // Hacker's Delight, Figure 7-1 ! i = (i & 0x55555555) << 1 | ((i >> 1) & 0x55555555); ! i = (i & 0x33333333) << 2 | ((i >> 2) & 0x33333333); ! i = (i & 0x0f0f0f0f) << 4 | ((i >> 4) & 0x0f0f0f0f); i = (i << 24) | ((i & 0xff00) << 8) | ((i >> 8) & 0xff00) | (i >> 24); return i; }
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