OpenJDK / amber / amber
comparison src/hotspot/os_cpu/solaris_sparc/count_trailing_zeros_solaris_sparc.hpp @ 54526:ee29b516a36a
revert changes
| author | jlaskey |
|---|---|
| date | Wed, 23 Jan 2019 16:09:20 -0400 |
| parents | 71c04702a3d5 |
| children |
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| 0:2f3de04d45bb | 1:7aea1a46e39a |
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| 1 /* | 1 /* |
| 2 * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved. | 2 * Copyright (c) 2017, 2019, 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. |
| 20 * or visit www.oracle.com if you need additional information or have any | 20 * or visit www.oracle.com if you need additional information or have any |
| 21 * questions. | 21 * questions. |
| 22 * | 22 * |
| 23 */ | 23 */ |
| 24 | 24 |
| 25 #ifndef OS_CPU_SOLARIS_SPARC_VM_COUNTTRAILINGZEROS_HPP | 25 #ifndef OS_CPU_SOLARIS_SPARC_COUNT_TRAILING_ZEROS_SOLARIS_SPARC_HPP |
| 26 #define OS_CPU_SOLARIS_SPARC_VM_COUNTTRAILINGZEROS_HPP | 26 #define OS_CPU_SOLARIS_SPARC_COUNT_TRAILING_ZEROS_SOLARIS_SPARC_HPP |
| 27 | 27 |
| 28 #include "utilities/globalDefinitions.hpp" | 28 #include "utilities/globalDefinitions.hpp" |
| 29 | 29 |
| 30 inline unsigned count_trailing_zeros(uintx x) { | 30 inline unsigned count_trailing_zeros(uintx x) { |
| 31 assert(x != 0, "precondition"); | 31 assert(x != 0, "precondition"); |
| 36 uintx result; | 36 uintx result; |
| 37 __asm__(" popc %1, %0\n\t" : "=r" (result) : "r" (rx)); | 37 __asm__(" popc %1, %0\n\t" : "=r" (result) : "r" (rx)); |
| 38 return result; | 38 return result; |
| 39 } | 39 } |
| 40 | 40 |
| 41 #endif // include guard | 41 #endif // OS_CPU_SOLARIS_SPARC_COUNT_TRAILING_ZEROS_SOLARIS_SPARC_HPP |