1# Copyright (C) 2016 The Android Open Source Project
2#
3# Licensed under the Apache License, Version 2.0 (the "License");
4# you may not use this file except in compliance with the License.
5# You may obtain a copy of the License at
6#
7#      http://www.apache.org/licenses/LICENSE-2.0
8#
9# Unless required by applicable law or agreed to in writing, software
10# distributed under the License is distributed on an "AS IS" BASIS,
11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12# See the License for the specific language governing permissions and
13# limitations under the License.
14
15.class public LOsr;
16
17.super Ljava/lang/Object;
18
19# Check that blocks only havig nops are not merged when they are loop headers.
20# This ensures we can do on-stack replacement for branches to those nop blocks.
21
22## CHECK-START: int Osr.simpleLoop(int, int) dead_code_elimination$final (after)
23## CHECK-DAG:                     SuspendCheck loop:<<OuterLoop:B\d+>> outer_loop:none
24## CHECK-DAG:                     SuspendCheck loop:{{B\d+}} outer_loop:<<OuterLoop>>
25.method public static simpleLoop(II)I
26   .registers 3
27   const/16 v0, 0
28   :nop_entry
29   nop
30   :loop_entry
31   add-int v0, v0, v0
32   if-eq v0, v1, :loop_entry
33   if-eq v0, v2, :nop_entry
34   return v0
35.end method
36