| /* |
| * Copyright (C) 2016 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. |
| */ |
| |
| public class Main { |
| |
| /// CHECK-START-X86: int Main.p(float) liveness (after) |
| /// CHECK: <<Arg:f\d+>> ParameterValue uses:[<<UseInput:\d+>>] |
| /// CHECK-DAG: <<Five:f\d+>> FloatConstant 5 uses:[<<UseInput>>] |
| /// CHECK-DAG: <<Zero:i\d+>> IntConstant 0 |
| /// CHECK-DAG: <<MinusOne:i\d+>> IntConstant -1 uses:[<<UseInput>>] |
| /// CHECK: <<Base:i\d+>> X86ComputeBaseMethodAddress uses:[<<UseInput>>] |
| /// CHECK-NEXT: <<Load:f\d+>> X86LoadFromConstantTable [<<Base>>,<<Five>>] |
| /// CHECK-NEXT: <<Cond:z\d+>> LessThanOrEqual [<<Arg>>,<<Load>>] |
| /// CHECK-NEXT: Select [<<Zero>>,<<MinusOne>>,<<Cond>>] liveness:<<LivSel:\d+>> |
| /// CHECK-EVAL: <<UseInput>> == <<LivSel>> + 1 |
| |
| public static int p(float arg) { |
| return (arg > 5.0f) ? 0 : -1; |
| } |
| |
| /// CHECK-START-{ARM,ARM64}: void Main.testThrowIntoCatchBlock(int, java.lang.Object, int[]) liveness (after) |
| /// CHECK-DAG: <<IntArg:i\d+>> ParameterValue env_uses:[23,25] |
| /// CHECK-DAG: <<RefArg:l\d+>> ParameterValue env_uses:[11,23,25] |
| /// CHECK-DAG: <<Array:l\d+>> ParameterValue env_uses:[11,23,25] |
| /// CHECK-DAG: <<Const1:i\d+>> IntConstant 1 env_uses:[23,25] |
| /// CHECK-DAG: SuspendCheck env:[[_,<<IntArg>>,<<RefArg>>,<<Array>>]] liveness:10 |
| /// CHECK-DAG: NullCheck env:[[<<Const1>>,<<IntArg>>,<<RefArg>>,<<Array>>]] liveness:20 |
| /// CHECK-DAG: ArrayLength liveness:22 |
| /// CHECK-DAG: BoundsCheck env:[[<<Const1>>,<<IntArg>>,<<RefArg>>,<<Array>>]] liveness:24 |
| /// CHECK-DAG: TryBoundary |
| |
| /// CHECK-START-{ARM,ARM64}-DEBUGGABLE: void Main.testThrowIntoCatchBlock(int, java.lang.Object, int[]) liveness (after) |
| /// CHECK-DAG: <<IntArg:i\d+>> ParameterValue env_uses:[11,23,25] |
| /// CHECK-DAG: <<RefArg:l\d+>> ParameterValue env_uses:[11,23,25] |
| /// CHECK-DAG: <<Array:l\d+>> ParameterValue env_uses:[11,23,25] |
| /// CHECK-DAG: <<Const1:i\d+>> IntConstant 1 env_uses:[23,25] |
| /// CHECK-DAG: SuspendCheck env:[[_,<<IntArg>>,<<RefArg>>,<<Array>>]] liveness:10 |
| /// CHECK-DAG: NullCheck env:[[<<Const1>>,<<IntArg>>,<<RefArg>>,<<Array>>]] liveness:20 |
| /// CHECK-DAG: ArrayLength liveness:22 |
| /// CHECK-DAG: BoundsCheck env:[[<<Const1>>,<<IntArg>>,<<RefArg>>,<<Array>>]] liveness:24 |
| /// CHECK-DAG: TryBoundary |
| |
| // X86 and X86_64 generate at use site the ArrayLength, meaning only the BoundsCheck will have environment uses. |
| /// CHECK-START-{X86,X86_64}: void Main.testThrowIntoCatchBlock(int, java.lang.Object, int[]) liveness (after) |
| /// CHECK-DAG: <<IntArg:i\d+>> ParameterValue env_uses:[25] |
| /// CHECK-DAG: <<RefArg:l\d+>> ParameterValue env_uses:[11,25] |
| /// CHECK-DAG: <<Array:l\d+>> ParameterValue env_uses:[11,25] |
| /// CHECK-DAG: <<Const1:i\d+>> IntConstant 1 env_uses:[25] |
| /// CHECK-DAG: SuspendCheck env:[[_,<<IntArg>>,<<RefArg>>,<<Array>>]] liveness:10 |
| /// CHECK-DAG: NullCheck env:[[<<Const1>>,<<IntArg>>,<<RefArg>>,<<Array>>]] liveness:20 |
| /// CHECK-DAG: ArrayLength liveness:22 |
| /// CHECK-DAG: BoundsCheck env:[[<<Const1>>,<<IntArg>>,<<RefArg>>,<<Array>>]] liveness:24 |
| /// CHECK-DAG: TryBoundary |
| |
| /// CHECK-START-{X86,X86_64}-DEBUGGABLE: void Main.testThrowIntoCatchBlock(int, java.lang.Object, int[]) liveness (after) |
| /// CHECK-DAG: <<IntArg:i\d+>> ParameterValue env_uses:[11,25] |
| /// CHECK-DAG: <<RefArg:l\d+>> ParameterValue env_uses:[11,25] |
| /// CHECK-DAG: <<Array:l\d+>> ParameterValue env_uses:[11,25] |
| /// CHECK-DAG: <<Const1:i\d+>> IntConstant 1 env_uses:[25] |
| /// CHECK-DAG: SuspendCheck env:[[_,<<IntArg>>,<<RefArg>>,<<Array>>]] liveness:10 |
| /// CHECK-DAG: NullCheck env:[[<<Const1>>,<<IntArg>>,<<RefArg>>,<<Array>>]] liveness:20 |
| /// CHECK-DAG: ArrayLength liveness:22 |
| /// CHECK-DAG: BoundsCheck env:[[<<Const1>>,<<IntArg>>,<<RefArg>>,<<Array>>]] liveness:24 |
| /// CHECK-DAG: TryBoundary |
| |
| // |
| // A value live at a throwing instruction in a try block may be copied by |
| // the exception handler to its location at the top of the catch block. |
| public static void testThrowIntoCatchBlock(int x, Object y, int[] a) { |
| try { |
| a[1] = x; |
| } catch (ArrayIndexOutOfBoundsException exception) { |
| } |
| } |
| |
| /// CHECK-START-{ARM,ARM64}: void Main.testBoundsCheck(int, java.lang.Object, int[]) liveness (after) |
| /// CHECK-DAG: <<IntArg:i\d+>> ParameterValue env_uses:[] |
| /// CHECK-DAG: <<RefArg:l\d+>> ParameterValue env_uses:[11,19,21] |
| /// CHECK-DAG: <<Array:l\d+>> ParameterValue env_uses:[11,19,21] |
| /// CHECK-DAG: <<Const1:i\d+>> IntConstant 1 env_uses:[] |
| /// CHECK-DAG: SuspendCheck env:[[_,<<IntArg>>,<<RefArg>>,<<Array>>]] liveness:10 |
| /// CHECK-DAG: NullCheck env:[[<<Const1>>,<<IntArg>>,<<RefArg>>,<<Array>>]] liveness:16 |
| /// CHECK-DAG: ArrayLength liveness:18 |
| /// CHECK-DAG: BoundsCheck env:[[<<Const1>>,<<IntArg>>,<<RefArg>>,<<Array>>]] liveness:20 |
| |
| /// CHECK-START-{ARM,ARM64}-DEBUGGABLE: void Main.testBoundsCheck(int, java.lang.Object, int[]) liveness (after) |
| /// CHECK-DAG: <<IntArg:i\d+>> ParameterValue env_uses:[11,19,21] |
| /// CHECK-DAG: <<RefArg:l\d+>> ParameterValue env_uses:[11,19,21] |
| /// CHECK-DAG: <<Array:l\d+>> ParameterValue env_uses:[11,19,21] |
| /// CHECK-DAG: <<Const1:i\d+>> IntConstant 1 env_uses:[19,21] |
| /// CHECK-DAG: SuspendCheck env:[[_,<<IntArg>>,<<RefArg>>,<<Array>>]] liveness:10 |
| /// CHECK-DAG: NullCheck env:[[<<Const1>>,<<IntArg>>,<<RefArg>>,<<Array>>]] liveness:16 |
| /// CHECK-DAG: ArrayLength liveness:18 |
| /// CHECK-DAG: BoundsCheck env:[[<<Const1>>,<<IntArg>>,<<RefArg>>,<<Array>>]] liveness:20 |
| |
| /// CHECK-START-{X86,X86_64}: void Main.testBoundsCheck(int, java.lang.Object, int[]) liveness (after) |
| /// CHECK-DAG: <<IntArg:i\d+>> ParameterValue env_uses:[] |
| /// CHECK-DAG: <<RefArg:l\d+>> ParameterValue env_uses:[11,21] |
| /// CHECK-DAG: <<Array:l\d+>> ParameterValue env_uses:[11,21] |
| /// CHECK-DAG: <<Const1:i\d+>> IntConstant 1 env_uses:[] |
| /// CHECK-DAG: SuspendCheck env:[[_,<<IntArg>>,<<RefArg>>,<<Array>>]] liveness:10 |
| /// CHECK-DAG: NullCheck env:[[<<Const1>>,<<IntArg>>,<<RefArg>>,<<Array>>]] liveness:16 |
| /// CHECK-DAG: ArrayLength liveness:18 |
| /// CHECK-DAG: BoundsCheck env:[[<<Const1>>,<<IntArg>>,<<RefArg>>,<<Array>>]] liveness:20 |
| |
| /// CHECK-START-{X86,X86_64}-DEBUGGABLE: void Main.testBoundsCheck(int, java.lang.Object, int[]) liveness (after) |
| /// CHECK-DAG: <<IntArg:i\d+>> ParameterValue env_uses:[11,21] |
| /// CHECK-DAG: <<RefArg:l\d+>> ParameterValue env_uses:[11,21] |
| /// CHECK-DAG: <<Array:l\d+>> ParameterValue env_uses:[11,21] |
| /// CHECK-DAG: <<Const1:i\d+>> IntConstant 1 env_uses:[21] |
| /// CHECK-DAG: SuspendCheck env:[[_,<<IntArg>>,<<RefArg>>,<<Array>>]] liveness:10 |
| /// CHECK-DAG: NullCheck env:[[<<Const1>>,<<IntArg>>,<<RefArg>>,<<Array>>]] liveness:16 |
| /// CHECK-DAG: ArrayLength liveness:18 |
| /// CHECK-DAG: BoundsCheck env:[[<<Const1>>,<<IntArg>>,<<RefArg>>,<<Array>>]] liveness:20 |
| public static void testBoundsCheck(int x, Object y, int[] a) { |
| a[1] = x; |
| } |
| |
| /// CHECK-START: void Main.testDeoptimize(int, java.lang.Object, int[]) liveness (after) |
| /// CHECK-DAG: <<IntArg:i\d+>> ParameterValue env_uses:[25] |
| /// CHECK-DAG: <<RefArg:l\d+>> ParameterValue env_uses:[13,21,25] |
| /// CHECK-DAG: <<Array:l\d+>> ParameterValue env_uses:[13,21,25] |
| /// CHECK-DAG: <<Const0:i\d+>> IntConstant 0 env_uses:[25] |
| /// CHECK-DAG: SuspendCheck env:[[_,<<IntArg>>,<<RefArg>>,<<Array>>]] liveness:12 |
| /// CHECK-DAG: NullCheck env:[[<<Const0>>,<<IntArg>>,<<RefArg>>,<<Array>>]] liveness:18 |
| /// CHECK-DAG: ArrayLength liveness:20 |
| /// CHECK-DAG: Deoptimize env:[[<<Const0>>,<<IntArg>>,<<RefArg>>,<<Array>>]] liveness:24 |
| |
| /// CHECK-START-{ARM,ARM64}-DEBUGGABLE: void Main.testDeoptimize(int, java.lang.Object, int[]) liveness (after) |
| /// CHECK-DAG: <<IntArg:i\d+>> ParameterValue env_uses:[13,21,25] |
| /// CHECK-DAG: <<RefArg:l\d+>> ParameterValue env_uses:[13,21,25] |
| /// CHECK-DAG: <<Array:l\d+>> ParameterValue env_uses:[13,21,25] |
| /// CHECK-DAG: <<Const0:i\d+>> IntConstant 0 env_uses:[21,25] |
| /// CHECK-DAG: SuspendCheck env:[[_,<<IntArg>>,<<RefArg>>,<<Array>>]] liveness:12 |
| /// CHECK-DAG: NullCheck env:[[<<Const0>>,<<IntArg>>,<<RefArg>>,<<Array>>]] liveness:18 |
| /// CHECK-DAG: ArrayLength liveness:20 |
| /// CHECK-DAG: Deoptimize env:[[<<Const0>>,<<IntArg>>,<<RefArg>>,<<Array>>]] liveness:24 |
| |
| /// CHECK-START-{X86,X86_64}-DEBUGGABLE: void Main.testDeoptimize(int, java.lang.Object, int[]) liveness (after) |
| /// CHECK-DAG: <<IntArg:i\d+>> ParameterValue env_uses:[13,21,25] |
| /// CHECK-DAG: <<RefArg:l\d+>> ParameterValue env_uses:[13,21,25] |
| /// CHECK-DAG: <<Array:l\d+>> ParameterValue env_uses:[13,21,25] |
| /// CHECK-DAG: <<Const0:i\d+>> IntConstant 0 env_uses:[21,25] |
| /// CHECK-DAG: SuspendCheck env:[[_,<<IntArg>>,<<RefArg>>,<<Array>>]] liveness:12 |
| /// CHECK-DAG: NullCheck env:[[<<Const0>>,<<IntArg>>,<<RefArg>>,<<Array>>]] liveness:18 |
| /// CHECK-DAG: ArrayLength liveness:20 |
| /// CHECK-DAG: Deoptimize env:[[<<Const0>>,<<IntArg>>,<<RefArg>>,<<Array>>]] liveness:24 |
| // |
| // A value that's not live in compiled code may still be needed in interpreter, |
| // due to code motion, etc. |
| public static void testDeoptimize(int x, Object y, int[] a) { |
| a[0] = x; |
| a[1] = x; |
| } |
| |
| |
| /// CHECK-START: void Main.main(java.lang.String[]) liveness (after) |
| /// CHECK: <<X:i\d+>> ArrayLength uses:[<<UseInput:\d+>>] |
| /// CHECK: <<Y:i\d+>> StaticFieldGet uses:[<<UseInput>>] |
| /// CHECK: <<Cond:z\d+>> LessThanOrEqual [<<X>>,<<Y>>] |
| /// CHECK-NEXT: If [<<Cond>>] liveness:<<LivIf:\d+>> |
| /// CHECK-EVAL: <<UseInput>> == <<LivIf>> + 1 |
| |
| public static void main(String[] args) { |
| int x = args.length; |
| int y = field; |
| if (x > y) { |
| System.nanoTime(); |
| } |
| |
| int val = 14; |
| int[] array = new int[2]; |
| Integer intObj = Integer.valueOf(0); |
| testThrowIntoCatchBlock(val, intObj, array); |
| testBoundsCheck(val, intObj, array); |
| testDeoptimize(val, intObj, array); |
| } |
| |
| |
| public static int field = 42; |
| } |
