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/*
* 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:[11,23,25,33]
/// CHECK-DAG: <<Array:l\d+>> ParameterValue env_uses:[11,23,25,33]
/// 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:[11,23,25,33]
/// CHECK-DAG: <<RefArg:l\d+>> ParameterValue env_uses:[11,23,25,33]
/// CHECK-DAG: <<Array:l\d+>> ParameterValue env_uses:[11,23,25,33]
/// CHECK-DAG: <<Const1:i\d+>> IntConstant 1 env_uses:[23,25,33]
/// 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:[25,25]
/// CHECK-DAG: <<RefArg:l\d+>> ParameterValue env_uses:[11,25,25,33]
/// CHECK-DAG: <<Array:l\d+>> ParameterValue env_uses:[11,25,25,33]
/// CHECK-DAG: <<Const1:i\d+>> IntConstant 1 env_uses:[25,25]
/// 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:[11,25,25,33]
/// CHECK-DAG: <<RefArg:l\d+>> ParameterValue env_uses:[11,25,25,33]
/// CHECK-DAG: <<Array:l\d+>> ParameterValue env_uses:[11,25,25,33]
/// CHECK-DAG: <<Const1:i\d+>> IntConstant 1 env_uses:[25,25,33]
/// 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:[11,21,21]
/// CHECK-DAG: <<Array:l\d+>> ParameterValue env_uses:[11,21,21]
/// 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:[11,21,21]
/// CHECK-DAG: <<RefArg:l\d+>> ParameterValue env_uses:[11,21,21]
/// CHECK-DAG: <<Array:l\d+>> ParameterValue env_uses:[11,21,21]
/// CHECK-DAG: <<Const1:i\d+>> IntConstant 1 env_uses:[21,21]
/// 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;
}