100 lines
3.3 KiB
Java
100 lines
3.3 KiB
Java
/*
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* Copyright (c) 2023, Arm Limited. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package compiler.vectorapi;
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import jdk.incubator.vector.IntVector;
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/*
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* @test
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* @bug 8304948
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* @summary C2 crashes when expanding VectorBox
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* @modules jdk.incubator.vector
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* @library /test/lib
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*
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* @run main/othervm -Xbatch -XX:-TieredCompilation -ea -XX:CompileCommand=dontinline,*VectorBoxExpandTest.test compiler.vectorapi.VectorBoxExpandTest
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*/
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public class VectorBoxExpandTest {
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private static final int ARR_LEN = 1024;
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private static final int NUM_ITER = 2000;
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private static int[] iarr = new int[ARR_LEN];
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private static IntVector g;
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// C2 would generate IR graph like below:
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//
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// ------------
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// / \
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// Region | VectorBox |
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// \ | / |
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// Phi |
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// | |
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// | |
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// Region | VectorBox |
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// \ | / |
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// Phi |
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// | |
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// |\------------/
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// |
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//
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//
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// which would be optimized by merge_through_phi through Phi::Ideal and some
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// other transformations. Finally C2 would expand VectorBox on a graph like
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// below:
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//
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// ------------
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// / \
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// Region | Proj |
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// \ | / |
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// Phi |
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// | |
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// | |
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// Region | Proj |
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// \ | / |
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// Phi |
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// | |
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// |\------------/
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// |
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// | Phi
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// | /
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// VectorBox
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//
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// where the cycle case should be taken into consideration as well.
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private static void test() {
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IntVector a = IntVector.fromArray(IntVector.SPECIES_PREFERRED, iarr, 0);
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for (int ic = 0; ic < NUM_ITER; ic++) {
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for (int i = 0; i < iarr.length; i++) {
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a = a.add(a);
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}
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}
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g = a;
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}
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public static void main(String[] args) {
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test();
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System.out.println("PASS");
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}
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}
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