From 1368b914e93a3af332f787d3d41c106d11bb90da Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Tue, 5 Jan 2021 22:09:57 -0500 Subject: sim: testsuite: flatten tree 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. --- sim/testsuite/bpf/xadd.s | 44 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 sim/testsuite/bpf/xadd.s (limited to 'sim/testsuite/bpf/xadd.s') diff --git a/sim/testsuite/bpf/xadd.s b/sim/testsuite/bpf/xadd.s new file mode 100644 index 0000000..be60714 --- /dev/null +++ b/sim/testsuite/bpf/xadd.s @@ -0,0 +1,44 @@ +# 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 -- cgit v1.1