1# Copyright (C) 2017 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 LSmaliTests; 16.super Ljava/lang/Object; 17 18# A very particular set of operations that caused a double removal by the 19# ARM64 simplifier doing "forward" removals (b/27851582). 20 21## CHECK-START-ARM: int SmaliTests.operations() instruction_simplifier_arm (before) 22## CHECK-DAG: <<Get:i\d+>> ArrayGet 23## CHECK-DAG: <<Not:i\d+>> Not [<<Get>>] 24## CHECK-DAG: <<Shl:i\d+>> Shl [<<Get>>,i{{\d+}}] 25## CHECK-DAG: And [<<Not>>,<<Shl>>] 26 27## CHECK-START-ARM: int SmaliTests.operations() instruction_simplifier_arm (after) 28## CHECK-DAG: <<Get:i\d+>> ArrayGet 29## CHECK-DAG: <<Not:i\d+>> Not [<<Get>>] 30## CHECK-DAG: DataProcWithShifterOp [<<Not>>,<<Get>>] kind:And+LSL shift:2 31 32## CHECK-START-ARM64: int SmaliTests.operations() instruction_simplifier_arm64 (before) 33## CHECK-DAG: <<Get:i\d+>> ArrayGet 34## CHECK-DAG: <<Not:i\d+>> Not [<<Get>>] 35## CHECK-DAG: <<Shl:i\d+>> Shl [<<Get>>,i{{\d+}}] 36## CHECK-DAG: And [<<Not>>,<<Shl>>] 37 38## CHECK-START-ARM64: int SmaliTests.operations() instruction_simplifier_arm64 (after) 39## CHECK-DAG: <<Get:i\d+>> ArrayGet 40## CHECK-DAG: <<Not:i\d+>> Not [<<Get>>] 41## CHECK-DAG: DataProcWithShifterOp [<<Not>>,<<Get>>] kind:And+LSL shift:2 42.method public static operations()I 43 .registers 6 44 .prologue 45 46 # int r = a[0]; 47 sget-object v4, LMain;->a:[I 48 const/4 v5, 0x0 49 aget v2, v4, v5 50 # int n = ~r; 51 not-int v1, v2 52 # int s = r << 2; 53 shl-int/lit8 v3, v2, 0x2 54 # int a = s & n; 55 and-int v0, v3, v1 56 # return a 57 return v0 58.end method 59