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comparison: nsprpub/pr/src/md/unix/os_Linux_ia64.s
nsprpub/pr/src/md/unix/os_Linux_ia64.s
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- TOR_BUG_3246
- changeset 5
- 4ab42b5ab56c
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| -1:000000000000 | 0:937399789cd1 |
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| 1 // -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- | |
| 2 // | |
| 3 // This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 // License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 // file, You can obtain one at http://mozilla.org/MPL/2.0/. | |
| 6 | |
| 7 .text | |
| 8 | |
| 9 // PRInt32 _PR_ia64_AtomicIncrement(PRInt32 *val) | |
| 10 // | |
| 11 // Atomically increment the integer pointed to by 'val' and return | |
| 12 // the result of the increment. | |
| 13 // | |
| 14 .align 16 | |
| 15 .global _PR_ia64_AtomicIncrement# | |
| 16 .proc _PR_ia64_AtomicIncrement# | |
| 17 _PR_ia64_AtomicIncrement: | |
| 18 fetchadd4.acq r8 = [r32], 1 ;; | |
| 19 adds r8 = 1, r8 | |
| 20 br.ret.sptk.many b0 | |
| 21 .endp _PR_ia64_AtomicIncrement# | |
| 22 | |
| 23 // PRInt32 _PR_ia64_AtomicDecrement(PRInt32 *val) | |
| 24 // | |
| 25 // Atomically decrement the integer pointed to by 'val' and return | |
| 26 // the result of the decrement. | |
| 27 // | |
| 28 .align 16 | |
| 29 .global _PR_ia64_AtomicDecrement# | |
| 30 .proc _PR_ia64_AtomicDecrement# | |
| 31 _PR_ia64_AtomicDecrement: | |
| 32 fetchadd4.rel r8 = [r32], -1 ;; | |
| 33 adds r8 = -1, r8 | |
| 34 br.ret.sptk.many b0 | |
| 35 .endp _PR_ia64_AtomicDecrement# | |
| 36 | |
| 37 // PRInt32 _PR_ia64_AtomicAdd(PRInt32 *ptr, PRInt32 val) | |
| 38 // | |
| 39 // Atomically add 'val' to the integer pointed to by 'ptr' | |
| 40 // and return the result of the addition. | |
| 41 // | |
| 42 .align 16 | |
| 43 .global _PR_ia64_AtomicAdd# | |
| 44 .proc _PR_ia64_AtomicAdd# | |
| 45 _PR_ia64_AtomicAdd: | |
| 46 ld4 r15 = [r32] ;; | |
| 47 .L3: | |
| 48 mov r14 = r15 | |
| 49 mov ar.ccv = r15 | |
| 50 add r8 = r15, r33 ;; | |
| 51 cmpxchg4.acq r15 = [r32], r8, ar.ccv ;; | |
| 52 cmp4.ne p6, p7 = r15, r14 | |
| 53 (p6) br.cond.dptk .L3 | |
| 54 br.ret.sptk.many b0 | |
| 55 .endp _PR_ia64_AtomicAdd# | |
| 56 | |
| 57 // PRInt32 _PR_ia64_AtomicSet(PRInt32 *val, PRInt32 newval) | |
| 58 // | |
| 59 // Atomically set the integer pointed to by 'val' to the new | |
| 60 // value 'newval' and return the old value. | |
| 61 // | |
| 62 .align 16 | |
| 63 .global _PR_ia64_AtomicSet# | |
| 64 .proc _PR_ia64_AtomicSet# | |
| 65 _PR_ia64_AtomicSet: | |
| 66 xchg4 r8 = [r32], r33 | |
| 67 br.ret.sptk.many b0 | |
| 68 .endp _PR_ia64_AtomicSet# | |
| 69 | |
| 70 // Magic indicating no need for an executable stack | |
| 71 .section .note.GNU-stack, "", @progbits ; .previous |
