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/*
* Copyright (C) 2015 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: void Main.loop1(boolean) liveness (after)
/// CHECK: ParameterValue liveness:2 ranges:{[2,22)} uses:[17,22]
/// CHECK: Goto liveness:20
public static void loop1(boolean incoming) {
while (incoming) {}
}
/// CHECK-START: void Main.loop2(boolean) liveness (after)
/// CHECK: ParameterValue liveness:4 ranges:{[4,44)} uses:[35,40,44]
/// CHECK: Goto liveness:38
/// CHECK: Goto liveness:42
public static void loop2(boolean incoming) {
while (true) {
System.out.println("foo");
while (incoming) {}
}
}
/// CHECK-START: void Main.loop3(boolean) liveness (after)
/// CHECK: ParameterValue liveness:4 ranges:{[4,62)} uses:[58,62]
/// CHECK: Goto liveness:60
/// CHECK-START: void Main.loop3(boolean) liveness (after)
/// CHECK-NOT: Goto liveness:56
public static void loop3(boolean incoming) {
// 'incoming' only needs a use at the outer loop's back edge.
while (System.currentTimeMillis() != 42) {
while (Runtime.getRuntime() != null) {}
System.out.println(incoming);
}
}
/// CHECK-START: void Main.loop4(boolean) liveness (after)
/// CHECK: ParameterValue liveness:4 ranges:{[4,24)} uses:[24]
/// CHECK-START: void Main.loop4(boolean) liveness (after)
/// CHECK-NOT: Goto liveness:22
public static void loop4(boolean incoming) {
// 'incoming' has no loop use, so should not have back edge uses.
System.out.println(incoming);
while (System.currentTimeMillis() != 42) {
while (Runtime.getRuntime() != null) {}
}
}
/// CHECK-START: void Main.loop5(boolean) liveness (after)
/// CHECK: ParameterValue liveness:4 ranges:{[4,52)} uses:[35,44,48,52]
/// CHECK: Goto liveness:46
/// CHECK: Goto liveness:50
public static void loop5(boolean incoming) {
// 'incoming' must have a use at both back edges.
while (Runtime.getRuntime() != null) {
while (incoming) {
System.out.println(incoming);
}
}
}
/// CHECK-START: void Main.loop6(boolean) liveness (after)
/// CHECK: ParameterValue liveness:4 ranges:{[4,48)} uses:[26,48]
/// CHECK: Goto liveness:46
/// CHECK-START: void Main.loop6(boolean) liveness (after)
/// CHECK-NOT: Goto liveness:24
public static void loop6(boolean incoming) {
// 'incoming' must have a use only at the first loop's back edge.
while (true) {
System.out.println(incoming);
while (Runtime.getRuntime() != null) {}
}
}
/// CHECK-START: void Main.loop7(boolean) liveness (after)
/// CHECK: ParameterValue liveness:4 ranges:{[4,52)} uses:[34,43,48,52]
/// CHECK: Goto liveness:46
/// CHECK: Goto liveness:50
public static void loop7(boolean incoming) {
// 'incoming' must have a use at both back edges.
while (Runtime.getRuntime() != null) {
System.out.println(incoming);
while (incoming) {}
}
}
/// CHECK-START: void Main.loop8() liveness (after)
/// CHECK: StaticFieldGet liveness:14 ranges:{[14,46)} uses:[37,42,46]
/// CHECK: Goto liveness:40
/// CHECK: Goto liveness:44
public static void loop8() {
// 'incoming' must have a use at both back edges.
boolean incoming = field;
while (Runtime.getRuntime() != null) {
while (incoming) {}
}
}
/// CHECK-START: void Main.loop9() liveness (after)
/// CHECK: StaticFieldGet liveness:24 ranges:{[24,38)} uses:[33,38]
/// CHECK: Goto liveness:40
public static void loop9() {
while (Runtime.getRuntime() != null) {
// 'incoming' must only have a use in the inner loop.
boolean incoming = field;
while (incoming) {}
}
}
public static void main(String[] args) {
}
static boolean field;
}
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