Mercurial > hg > truffle
annotate src/os_cpu/linux_x86/vm/bytes_linux_x86.inline.hpp @ 4710:41406797186b
7113012: G1: rename not-fully-young GCs as "mixed"
Summary: Renamed partially-young GCs as mixed and fully-young GCs as young. Change all external output that includes those terms (GC log and GC ergo log) as well as any comments, fields, methods, etc. The changeset also includes very minor code tidying up (added some curly brackets).
Reviewed-by: johnc, brutisso
| author | tonyp |
|---|---|
| date | Fri, 16 Dec 2011 02:14:27 -0500 |
| parents | f95d63e2154a |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 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 | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef OS_CPU_LINUX_X86_VM_BYTES_LINUX_X86_INLINE_HPP |
| 26 #define OS_CPU_LINUX_X86_VM_BYTES_LINUX_X86_INLINE_HPP | |
| 27 | |
| 0 | 28 #include <byteswap.h> |
| 29 | |
| 30 // Efficient swapping of data bytes from Java byte | |
| 31 // ordering to native byte ordering and vice versa. | |
| 32 inline u2 Bytes::swap_u2(u2 x) { | |
| 33 #ifdef AMD64 | |
| 34 return bswap_16(x); | |
| 35 #else | |
| 36 u2 ret; | |
| 37 __asm__ __volatile__ ( | |
| 38 "movw %0, %%ax;" | |
| 39 "xchg %%al, %%ah;" | |
| 40 "movw %%ax, %0" | |
| 41 :"=r" (ret) // output : register 0 => ret | |
| 42 :"0" (x) // input : x => register 0 | |
| 43 :"ax", "0" // clobbered registers | |
| 44 ); | |
| 45 return ret; | |
| 46 #endif // AMD64 | |
| 47 } | |
| 48 | |
| 49 inline u4 Bytes::swap_u4(u4 x) { | |
| 50 #ifdef AMD64 | |
| 51 return bswap_32(x); | |
| 52 #else | |
| 53 u4 ret; | |
| 54 __asm__ __volatile__ ( | |
| 55 "bswap %0" | |
| 56 :"=r" (ret) // output : register 0 => ret | |
| 57 :"0" (x) // input : x => register 0 | |
| 58 :"0" // clobbered register | |
| 59 ); | |
| 60 return ret; | |
| 61 #endif // AMD64 | |
| 62 } | |
| 63 | |
| 64 #ifdef AMD64 | |
| 65 inline u8 Bytes::swap_u8(u8 x) { | |
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50
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66 #ifdef SPARC_WORKS |
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67 // workaround for SunStudio12 CR6615391 |
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68 __asm__ __volatile__ ( |
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69 "bswapq %0" |
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70 :"=r" (x) // output : register 0 => x |
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71 :"0" (x) // input : x => register 0 |
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72 :"0" // clobbered register |
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73 ); |
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74 return x; |
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75 #else |
| 0 | 76 return bswap_64(x); |
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77 #endif |
| 0 | 78 } |
| 79 #else | |
| 80 // Helper function for swap_u8 | |
| 81 inline u8 Bytes::swap_u8_base(u4 x, u4 y) { | |
| 82 return (((u8)swap_u4(x))<<32) | swap_u4(y); | |
| 83 } | |
| 84 | |
| 85 inline u8 Bytes::swap_u8(u8 x) { | |
| 86 return swap_u8_base(*(u4*)&x, *(((u4*)&x)+1)); | |
| 87 } | |
| 88 #endif // !AMD64 | |
| 1972 | 89 |
| 90 #endif // OS_CPU_LINUX_X86_VM_BYTES_LINUX_X86_INLINE_HPP |