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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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/*
 * @test id=with-flags
 * @bug 8370332
 * @summary This test shows a case where split_if split a node through a phi, but left the
 *          dead node and a dead phi in the loop _body. Subsequently, SuperWord was run, and
 *          found the dead nodes in the _body, which is not expected.
 * @run main/othervm
 *      -XX:CompileCommand=compileonly,*TestSplitThruPhiRemoveDeadNodesFromLoopBody::test
 *      -Xbatch
 *      compiler.loopopts.superword.TestSplitThruPhiRemoveDeadNodesFromLoopBody
 */

/*
 * @test id=vanilla
 * @bug 8370332
 * @run main compiler.loopopts.superword.TestSplitThruPhiRemoveDeadNodesFromLoopBody
 */

package compiler.loopopts.superword;

public class TestSplitThruPhiRemoveDeadNodesFromLoopBody {
    static int N = 400;
    static float floatZero = 0;
    static boolean falseFlag = false;;

    static int fieldStore = 0;
    static int fieldIncr = 0;
    static int arrayI[] = new int[N];

    static void inlined() {
        int x = 0;
        for (int i = 0; i < 100; i++) {
            fieldStore = 42;
            if (falseFlag) {
                for (int k = 0; k < 20; k++) {
                    x += i;
                }
            }
        }
    }

    static void test() {
        inlined();
        for (int k = 0; k < 10; k++) {
            for (int j = 0; j < 100; j++) {
                fieldIncr += floatZero;
                arrayI[j] = 42; // SuperWord happens here -> SIGSEGV
            }
        }
    }

    public static void main(String[] strArr) {
        for (int i = 0; i < 1_000; i++) {
            test();
        }
    }
}