8134321: tools/pack200/Pack200Test.java crashes in the VM PIT jdk9 b79
Summary: Code that capture field values of eliminated allocation at a safepoint when there's an arraycopy behind a Phi is broken
Reviewed-by: kvn
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/*
* @test
* @bug 8134321
* @summary Code that capture field values of eliminated allocation at a safepoint when there's an arraycopy behind a Phi is broken
* @run main/othervm -XX:-BackgroundCompilation -XX:-UseOnStackReplacement TestEliminatedArrayCopyPhi
*
*/
public class TestEliminatedArrayCopyPhi {
static int[] escaped;
static void test(int[] src, boolean flag1, boolean flag2) {
int[] array = new int[10];
if (flag1) {
System.arraycopy(src, 0, array, 0, src.length);
} else {
}
if (flag2) {
// never taken
escaped = array;
}
}
public static void main(String[] args) {
int[] src = new int[10];
for (int i = 0; i < 20000; i++) {
test(src, (i % 2) == 0, false);
}
}
}