java-topology/test/hotspot/jtreg/compiler/vectorapi/VectorBoxExpandProj.java
russell@unturf.com 0a580b313d undefect. CWE-407 — 63 sites patched across 27 ecosystems
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com

Patches, unit tests, benchmarks, whitepaper, and outreach briefs.
Public domain — no copyright claimed. Use freely.
2026-03-26 17:11:57 -04:00

54 lines
2 KiB
Java

/*
* Copyright (c) 2026, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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*/
package compiler.vectorapi;
import jdk.incubator.vector.*;
/*
* @test
* @bug 8375010
* @summary C2 crashes when expanding VectorBox with Proj input from vector math call
* @modules jdk.incubator.vector
* @library /test/lib
*
* @run main/othervm -Xbatch -XX:CompileCommand=compileonly,compiler.vectorapi.VectorBoxExpandProj::test compiler.vectorapi.VectorBoxExpandProj
*/
public class VectorBoxExpandProj {
static boolean b;
public static void main(String[] args) {
for (int i = 0; i < 20_000; i++) {
b = !b;
test();
}
System.out.println("PASS");
}
// TAN returns Proj (not VectorNode). Phi merging creates VectorBox(Phi, Proj).
// expand_vbox_node_helper must handle Proj inputs with vector type.
static Object test() {
var t = DoubleVector.broadcast(DoubleVector.SPECIES_128, 1.0).lanewise(VectorOperators.TAN);
return b ? t.convertShape(VectorOperators.Conversion.ofCast(double.class, double.class), DoubleVector.SPECIES_128, 0) : t;
}
}