59 lines
2.1 KiB
Smali
59 lines
2.1 KiB
Smali
# Copyright (C) 2017 The Android Open Source Project
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
|
|
.class public LSmaliTests;
|
|
.super Ljava/lang/Object;
|
|
|
|
# A very particular set of operations that caused a double removal by the
|
|
# ARM64 simplifier doing "forward" removals (b/27851582).
|
|
|
|
## CHECK-START-ARM: int SmaliTests.operations() instruction_simplifier_arm (before)
|
|
## CHECK-DAG: <<Get:i\d+>> ArrayGet
|
|
## CHECK-DAG: <<Not:i\d+>> Not [<<Get>>]
|
|
## CHECK-DAG: <<Shl:i\d+>> Shl [<<Get>>,i{{\d+}}]
|
|
## CHECK-DAG: And [<<Not>>,<<Shl>>]
|
|
|
|
## CHECK-START-ARM: int SmaliTests.operations() instruction_simplifier_arm (after)
|
|
## CHECK-DAG: <<Get:i\d+>> ArrayGet
|
|
## CHECK-DAG: <<Not:i\d+>> Not [<<Get>>]
|
|
## CHECK-DAG: DataProcWithShifterOp [<<Not>>,<<Get>>] kind:And+LSL shift:2
|
|
|
|
## CHECK-START-ARM64: int SmaliTests.operations() instruction_simplifier_arm64 (before)
|
|
## CHECK-DAG: <<Get:i\d+>> ArrayGet
|
|
## CHECK-DAG: <<Not:i\d+>> Not [<<Get>>]
|
|
## CHECK-DAG: <<Shl:i\d+>> Shl [<<Get>>,i{{\d+}}]
|
|
## CHECK-DAG: And [<<Not>>,<<Shl>>]
|
|
|
|
## CHECK-START-ARM64: int SmaliTests.operations() instruction_simplifier_arm64 (after)
|
|
## CHECK-DAG: <<Get:i\d+>> ArrayGet
|
|
## CHECK-DAG: <<Not:i\d+>> Not [<<Get>>]
|
|
## CHECK-DAG: DataProcWithShifterOp [<<Not>>,<<Get>>] kind:And+LSL shift:2
|
|
.method public static operations()I
|
|
.registers 6
|
|
.prologue
|
|
|
|
# int r = a[0];
|
|
sget-object v4, LMain;->a:[I
|
|
const/4 v5, 0x0
|
|
aget v2, v4, v5
|
|
# int n = ~r;
|
|
not-int v1, v2
|
|
# int s = r << 2;
|
|
shl-int/lit8 v3, v2, 0x2
|
|
# int a = s & n;
|
|
and-int v0, v3, v1
|
|
# return a
|
|
return v0
|
|
.end method
|