1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/nsprpub/pr/src/md/unix/os_Linux_ia64.s Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,71 @@
1.4 +// -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
1.5 +//
1.6 +// This Source Code Form is subject to the terms of the Mozilla Public
1.7 +// License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 +// file, You can obtain one at http://mozilla.org/MPL/2.0/.
1.9 +
1.10 +.text
1.11 +
1.12 +// PRInt32 _PR_ia64_AtomicIncrement(PRInt32 *val)
1.13 +//
1.14 +// Atomically increment the integer pointed to by 'val' and return
1.15 +// the result of the increment.
1.16 +//
1.17 + .align 16
1.18 + .global _PR_ia64_AtomicIncrement#
1.19 + .proc _PR_ia64_AtomicIncrement#
1.20 +_PR_ia64_AtomicIncrement:
1.21 + fetchadd4.acq r8 = [r32], 1 ;;
1.22 + adds r8 = 1, r8
1.23 + br.ret.sptk.many b0
1.24 + .endp _PR_ia64_AtomicIncrement#
1.25 +
1.26 +// PRInt32 _PR_ia64_AtomicDecrement(PRInt32 *val)
1.27 +//
1.28 +// Atomically decrement the integer pointed to by 'val' and return
1.29 +// the result of the decrement.
1.30 +//
1.31 + .align 16
1.32 + .global _PR_ia64_AtomicDecrement#
1.33 + .proc _PR_ia64_AtomicDecrement#
1.34 +_PR_ia64_AtomicDecrement:
1.35 + fetchadd4.rel r8 = [r32], -1 ;;
1.36 + adds r8 = -1, r8
1.37 + br.ret.sptk.many b0
1.38 + .endp _PR_ia64_AtomicDecrement#
1.39 +
1.40 +// PRInt32 _PR_ia64_AtomicAdd(PRInt32 *ptr, PRInt32 val)
1.41 +//
1.42 +// Atomically add 'val' to the integer pointed to by 'ptr'
1.43 +// and return the result of the addition.
1.44 +//
1.45 + .align 16
1.46 + .global _PR_ia64_AtomicAdd#
1.47 + .proc _PR_ia64_AtomicAdd#
1.48 +_PR_ia64_AtomicAdd:
1.49 + ld4 r15 = [r32] ;;
1.50 +.L3:
1.51 + mov r14 = r15
1.52 + mov ar.ccv = r15
1.53 + add r8 = r15, r33 ;;
1.54 + cmpxchg4.acq r15 = [r32], r8, ar.ccv ;;
1.55 + cmp4.ne p6, p7 = r15, r14
1.56 + (p6) br.cond.dptk .L3
1.57 + br.ret.sptk.many b0
1.58 + .endp _PR_ia64_AtomicAdd#
1.59 +
1.60 +// PRInt32 _PR_ia64_AtomicSet(PRInt32 *val, PRInt32 newval)
1.61 +//
1.62 +// Atomically set the integer pointed to by 'val' to the new
1.63 +// value 'newval' and return the old value.
1.64 +//
1.65 + .align 16
1.66 + .global _PR_ia64_AtomicSet#
1.67 + .proc _PR_ia64_AtomicSet#
1.68 +_PR_ia64_AtomicSet:
1.69 + xchg4 r8 = [r32], r33
1.70 + br.ret.sptk.many b0
1.71 + .endp _PR_ia64_AtomicSet#
1.72 +
1.73 +// Magic indicating no need for an executable stack
1.74 +.section .note.GNU-stack, "", @progbits ; .previous
