mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-21 04:42:53 +08:00
1368b914e9
Now that all port tests live under testsuite/sim/*/, and none live in testsuite/ directly, flatten the structure by moving all of the dirs under testsuite/sim/ to testsuite/ directly. We need to stop passing --tool to dejagnu so that it searches all dirs and not just ones that start with "sim". Since we have no other dirs in this tree, and no plans to add any, should be fine.
45 lines
1.0 KiB
ArmAsm
45 lines
1.0 KiB
ArmAsm
# mach: bpf
|
|
# output: pass\nexit 0 (0x0)\n
|
|
;;; xadd.s
|
|
;;; Tests for BPF atomic exchange-and-add instructions in simulator
|
|
;;;
|
|
;;; The xadd instructions (XADDW, XADDDW) operate on a memory location
|
|
;;; specified in $dst + offset16, atomically adding the value in $src.
|
|
;;;
|
|
;;; In the simulator, there isn't anything else happening. The atomic
|
|
;;; instructions are identical to a non-atomic load/add/store.
|
|
|
|
.include "testutils.inc"
|
|
|
|
.text
|
|
.global main
|
|
.type main, @function
|
|
main:
|
|
mov %r1, 0x1000
|
|
mov %r2, 5
|
|
|
|
;; basic xadd w
|
|
stw [%r1+0], 10
|
|
xaddw [%r1+0], %r2
|
|
ldxw %r3, [%r1+0]
|
|
fail_ne %r3, 15
|
|
|
|
;; basic xadd dw
|
|
stdw [%r1+8], 42
|
|
xadddw [%r1+8], %r2
|
|
ldxdw %r3, [%r1+8]
|
|
fail_ne %r3, 47
|
|
|
|
;; xadd w negative value
|
|
mov %r4, -1
|
|
xaddw [%r1+0], %r4
|
|
ldxw %r3, [%r1+0]
|
|
fail_ne %r3, 14
|
|
|
|
;; xadd dw negative val
|
|
xadddw [%r1+8], %r4
|
|
ldxdw %r3, [%r1+8]
|
|
fail_ne %r3, 46
|
|
|
|
pass
|