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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.
*/
class Main {
// The code below is written in a way that would crash
// the generated code at the time of submission of this test.
// Therefore, changes to the register allocator may
// affect the reproducibility of the crash.
public static void $noinline$foo(int a, int b, int c) {
// The division on x86 will take EAX and EDX, leaving ECX
// to put the ART current method.
c = c / 42;
// We use the empty string for forcing the slow path.
// The slow path for charAt, when it is intrinsified, will
// move the parameter to ECX and therefore overwrite the ART
// current method.
"".charAt(c);
// Do more things in the method to prevent inlining.
c = c / 42;
"".charAt(c);
c = c / 42;
"".charAt(c);
c = c / 42;
"".charAt(c);
c = c / 42;
"".charAt(c);
c = c / 42;
"".charAt(c);
c = c / 42;
"".charAt(c);
c = c / 42;
"".charAt(c);
c = c / 42;
"".charAt(c);
c = c / 42;
"".charAt(c);
c = c / 42;
"".charAt(c);
c = c / 42;
"".charAt(c);
}
public static void main(String[] args) {
boolean didThrow = false;
try {
$noinline$foo(1, 2, 3);
} catch (Throwable e) {
didThrow = true;
}
if (!didThrow) {
throw new Error("Expected an exception from charAt");
}
}
}
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