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undefect. CWE-407 — 63 sites patched across 27 ecosystems

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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.
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russell@unturf.com 2026-03-26 17:11:57 -04:00
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54
test/hotspot/jtreg/compiler/vectorapi/TestABSMaskedMaxByteVector.java Normal file
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/*
* Copyright (c) 2025, 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
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package compiler.vectorapi;
import compiler.lib.ir_framework.*;
import jdk.incubator.vector.*;
/*
* @test
* @bug 8337791
* @summary Test byte vector predicated ABS with UseAVX=0 and MaxVectorSize=8
* @modules jdk.incubator.vector
* @library /test/lib /
* @run driver compiler.vectorapi.TestABSMaskedMaxByteVector
*/
public class TestABSMaskedMaxByteVector {
public static final VectorSpecies<Byte> BSP = ByteVector.SPECIES_MAX;
public static int idx = 0;
public static void main(String[] args) {
TestFramework.runWithFlags("--add-modules=jdk.incubator.vector", "-ea", "-XX:+IgnoreUnrecognizedVMOptions", "-XX:UseAVX=0", "-XX:MaxVectorSize=8");
TestFramework.runWithFlags("--add-modules=jdk.incubator.vector", "-ea");
}
@Test
@IR(failOn = {IRNode.ABS_VB}, applyIfAnd = {"MaxVectorSize", " <= 8 ", "UseAVX", "0"}, applyIfPlatform = {"x64", "true"}, applyIfCPUFeature = {"sse4.1", "true"})
@IR(counts = {IRNode.ABS_VB, "1"}, applyIf = {"MaxVectorSize", " > 8 "}, applyIfPlatform = {"x64", "true"}, applyIfCPUFeature = {"sse4.1", "true"})
public void test() {
assert ByteVector.broadcast(BSP, (byte)-4)
.lanewise(VectorOperators.ABS, VectorMask.fromLong(BSP, 0xF))
.lane(idx++ & 3) == 4;
}
}