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comparison src/os_cpu/solaris_sparc/vm/atomic_solaris_sparc.inline.hpp @ 2140:85c73c0edb06

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7012965: Fix failed on sparc for 7009756: volatile variables could be broken throw reflection API Summary: Use LDX/STX on v9 and LDD/STD on v8 sparc for volatile long moves. Reviewed-by: never
author kvn
date Tue, 18 Jan 2011 17:10:03 -0800
parents f95d63e2154a
children f7de3327c683
comparison
equal deleted inserted replaced
2139:75efcee5ac47 2140:85c73c0edb06
1 /* 1 /*
2 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 1999, 2011, 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 // Implementation of class atomic 33 // Implementation of class atomic
34 34
35 inline void Atomic::store (jbyte store_value, jbyte* dest) { *dest = store_value; } 35 inline void Atomic::store (jbyte store_value, jbyte* dest) { *dest = store_value; }
36 inline void Atomic::store (jshort store_value, jshort* dest) { *dest = store_value; } 36 inline void Atomic::store (jshort store_value, jshort* dest) { *dest = store_value; }
37 inline void Atomic::store (jint store_value, jint* dest) { *dest = store_value; } 37 inline void Atomic::store (jint store_value, jint* dest) { *dest = store_value; }
38 inline void Atomic::store (jlong store_value, jlong* dest) { *dest = store_value; }
39 inline void Atomic::store_ptr(intptr_t store_value, intptr_t* dest) { *dest = store_value; } 38 inline void Atomic::store_ptr(intptr_t store_value, intptr_t* dest) { *dest = store_value; }
40 inline void Atomic::store_ptr(void* store_value, void* dest) { *(void**)dest = store_value; } 39 inline void Atomic::store_ptr(void* store_value, void* dest) { *(void**)dest = store_value; }
41 40
42 inline void Atomic::store (jbyte store_value, volatile jbyte* dest) { *dest = store_value; } 41 inline void Atomic::store (jbyte store_value, volatile jbyte* dest) { *dest = store_value; }
43 inline void Atomic::store (jshort store_value, volatile jshort* dest) { *dest = store_value; } 42 inline void Atomic::store (jshort store_value, volatile jshort* dest) { *dest = store_value; }
44 inline void Atomic::store (jint store_value, volatile jint* dest) { *dest = store_value; } 43 inline void Atomic::store (jint store_value, volatile jint* dest) { *dest = store_value; }
45 inline void Atomic::store (jlong store_value, volatile jlong* dest) { *dest = store_value; }
46 inline void Atomic::store_ptr(intptr_t store_value, volatile intptr_t* dest) { *dest = store_value; } 44 inline void Atomic::store_ptr(intptr_t store_value, volatile intptr_t* dest) { *dest = store_value; }
47 inline void Atomic::store_ptr(void* store_value, volatile void* dest) { *(void* volatile *)dest = store_value; } 45 inline void Atomic::store_ptr(void* store_value, volatile void* dest) { *(void* volatile *)dest = store_value; }
48 46
49 inline void Atomic::inc (volatile jint* dest) { (void)add (1, dest); } 47 inline void Atomic::inc (volatile jint* dest) { (void)add (1, dest); }
50 inline void Atomic::inc_ptr(volatile intptr_t* dest) { (void)add_ptr(1, dest); } 48 inline void Atomic::inc_ptr(volatile intptr_t* dest) { (void)add_ptr(1, dest); }
52 50
53 inline void Atomic::dec (volatile jint* dest) { (void)add (-1, dest); } 51 inline void Atomic::dec (volatile jint* dest) { (void)add (-1, dest); }
54 inline void Atomic::dec_ptr(volatile intptr_t* dest) { (void)add_ptr(-1, dest); } 52 inline void Atomic::dec_ptr(volatile intptr_t* dest) { (void)add_ptr(-1, dest); }
55 inline void Atomic::dec_ptr(volatile void* dest) { (void)add_ptr(-1, dest); } 53 inline void Atomic::dec_ptr(volatile void* dest) { (void)add_ptr(-1, dest); }
56 54
55
56 #ifdef _LP64
57
58 inline void Atomic::store(jlong store_value, jlong* dest) { *dest = store_value; }
59 inline void Atomic::store(jlong store_value, volatile jlong* dest) { *dest = store_value; }
57 inline jlong Atomic::load(volatile jlong* src) { return *src; } 60 inline jlong Atomic::load(volatile jlong* src) { return *src; }
61
62 #else
63
64 extern "C" void _Atomic_move_long_v8(volatile jlong* src, volatile jlong* dst);
65 extern "C" void _Atomic_move_long_v9(volatile jlong* src, volatile jlong* dst);
66
67 inline void Atomic_move_long(volatile jlong* src, volatile jlong* dst) {
68 #ifdef COMPILER2
69 // Compiler2 does not support v8, it is used only for v9.
70 assert (VM_Version::v9_instructions_work(), "only supported on v9");
71 _Atomic_move_long_v9(src, dst);
72 #else
73 // The branch is cheaper then emulated LDD.
74 if (VM_Version::v9_instructions_work()) {
75 _Atomic_move_long_v9(src, dst);
76 } else {
77 _Atomic_move_long_v8(src, dst);
78 }
79 #endif
80 }
81
82 inline jlong Atomic::load(volatile jlong* src) {
83 volatile jlong dest;
84 Atomic_move_long(src, &dest);
85 return dest;
86 }
87
88 inline void Atomic::store(jlong store_value, jlong* dest) {
89 Atomic_move_long((volatile jlong*)&store_value, (volatile jlong*)dest);
90 }
91
92 inline void Atomic::store(jlong store_value, volatile jlong* dest) {
93 Atomic_move_long((volatile jlong*)&store_value, dest);
94 }
95
96 #endif
58 97
59 #ifdef _GNU_SOURCE 98 #ifdef _GNU_SOURCE
60 99
61 inline jint Atomic::add (jint add_value, volatile jint* dest) { 100 inline jint Atomic::add (jint add_value, volatile jint* dest) {
62 intptr_t rv; 101 intptr_t rv;