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.
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/*
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* Copyright (c) 2022, 2023, Arm Limited. All rights reserved.
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* Copyright (c) 2026, Oracle and/or its affiliates. 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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/*
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* @test
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* @bug 8183390 8342095
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* @summary Vectorization test on basic short operations
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* @library /test/lib /
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*
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* @build jdk.test.whitebox.WhiteBox
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* compiler.vectorization.runner.VectorizationTestRunner
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*
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* @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
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* @run main/othervm -Xbootclasspath/a:.
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* -XX:+UnlockDiagnosticVMOptions
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* -XX:+WhiteBoxAPI
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* compiler.vectorization.runner.BasicShortOpTest
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*
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* @requires vm.compiler2.enabled
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*/
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package compiler.vectorization.runner;
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import compiler.lib.ir_framework.*;
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public class BasicShortOpTest extends VectorizationTestRunner {
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private static final int SIZE = 543;
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private short[] a;
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private short[] b;
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private short[] c;
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private int[] idx;
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public BasicShortOpTest() {
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a = new short[SIZE];
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b = new short[SIZE];
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c = new short[SIZE];
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idx = new int[SIZE];
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for (int i = 0; i < SIZE; i++) {
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a[i] = (short) (-12 * i);
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b[i] = (short) (9 * i + 8888);
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c[i] = (short) -32323;
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idx[i] = i;
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}
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}
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// ---------------- Arithmetic ----------------
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@Test
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@IR(applyIfCPUFeatureOr = {"asimd", "true", "sse2", "true", "rvv", "true"},
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counts = {IRNode.SUB_VS, ">0"})
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public short[] vectorNeg() {
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short[] res = new short[SIZE];
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for (int i = 0; i < SIZE; i++) {
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res[i] = (short) -a[i];
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}
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return res;
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}
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@Test
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@IR(applyIfCPUFeatureOr = {"asimd", "true", "ssse3", "true", "rvv", "true"},
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counts = {IRNode.ABS_VS, ">0"})
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public short[] vectorAbs() {
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short[] res = new short[SIZE];
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for (int i = 0; i < SIZE; i++) {
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res[i] = (short) Math.abs(a[i]);
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}
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return res;
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}
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@Test
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@IR(applyIfCPUFeatureOr = {"asimd", "true", "sse2", "true", "rvv", "true"},
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counts = {IRNode.ADD_VS, ">0"})
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public short[] vectorAdd() {
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short[] res = new short[SIZE];
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for (int i = 0; i < SIZE; i++) {
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res[i] = (short) (a[i] + b[i]);
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}
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return res;
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}
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@Test
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@IR(applyIfCPUFeatureOr = {"asimd", "true", "sse2", "true", "rvv", "true"},
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counts = {IRNode.SUB_VS, ">0"})
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public short[] vectorSub() {
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short[] res = new short[SIZE];
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for (int i = 0; i < SIZE; i++) {
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res[i] = (short) (a[i] - b[i]);
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}
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return res;
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}
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@Test
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@IR(applyIfCPUFeatureOr = {"asimd", "true", "sse2", "true", "rvv", "true"},
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counts = {IRNode.MUL_VS, ">0"})
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public short[] vectorMul() {
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short[] res = new short[SIZE];
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for (int i = 0; i < SIZE; i++) {
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res[i] = (short) (a[i] * b[i]);
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}
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return res;
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}
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@Test
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@IR(applyIfCPUFeatureOr = {"asimd", "true", "sse2", "true", "rvv", "true"},
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counts = {IRNode.MUL_VS, ">0", IRNode.ADD_VS, ">0"})
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public short[] vectorMulAdd() {
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short[] res = new short[SIZE];
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for (int i = 0; i < SIZE; i++) {
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res[i] = (short) (c[i] + a[i] * b[i]);
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}
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return res;
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}
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@Test
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@IR(applyIfCPUFeatureOr = {"asimd", "true", "sse2", "true", "rvv", "true"},
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counts = {IRNode.MUL_VS, ">0", IRNode.SUB_VS, ">0"})
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public short[] vectorMulSub() {
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short[] res = new short[SIZE];
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for (int i = 0; i < SIZE; i++) {
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res[i] = (short) (c[i] - a[i] * b[i]);
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}
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return res;
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}
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// ---------------- Logic ----------------
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@Test
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@IR(applyIfCPUFeatureOr = {"asimd", "true", "sse2", "true", "rvv", "true"},
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counts = {IRNode.XOR_VS, ">0"})
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public short[] vectorNot() {
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short[] res = new short[SIZE];
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for (int i = 0; i < SIZE; i++) {
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res[i] = (short) ~a[i];
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}
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return res;
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}
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@Test
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@IR(applyIfCPUFeatureOr = {"asimd", "true", "sse2", "true", "rvv", "true"},
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counts = {IRNode.AND_VS, ">0"})
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public short[] vectorAnd() {
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short[] res = new short[SIZE];
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for (int i = 0; i < SIZE; i++) {
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res[i] = (short) (a[i] & b[i]);
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}
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return res;
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}
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@Test
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@IR(applyIfCPUFeatureOr = {"asimd", "true", "sse2", "true", "rvv", "true"},
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counts = {IRNode.OR_VS, ">0"})
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public short[] vectorOr() {
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short[] res = new short[SIZE];
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for (int i = 0; i < SIZE; i++) {
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res[i] = (short) (a[i] | b[i]);
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}
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return res;
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}
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@Test
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@IR(applyIfCPUFeatureOr = {"asimd", "true", "sse2", "true", "rvv", "true"},
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counts = {IRNode.XOR_VS, ">0"})
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public short[] vectorXor() {
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short[] res = new short[SIZE];
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for (int i = 0; i < SIZE; i++) {
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res[i] = (short) (a[i] ^ b[i]);
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}
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return res;
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}
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// ---------------- Shift ----------------
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@Test
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@IR(applyIfCPUFeatureOr = {"asimd", "true", "sse2", "true", "rvv", "true"},
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counts = {IRNode.LSHIFT_VS, ">0"})
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public short[] vectorShiftLeft() {
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short[] res = new short[SIZE];
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for (int i = 0; i < SIZE; i++) {
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res[i] = (short) (a[i] << 3);
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}
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return res;
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}
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@Test
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@IR(applyIfCPUFeatureOr = {"asimd", "true", "sse2", "true", "rvv", "true"},
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counts = {IRNode.RSHIFT_VS, ">0"})
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public short[] vectorSignedShiftRight() {
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short[] res = new short[SIZE];
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for (int i = 0; i < SIZE; i++) {
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res[i] = (short) (a[i] >> 2);
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}
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return res;
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}
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// Min/Max vectorization requires a cast from subword to int and back to subword, to avoid losing the higher order bits.
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@Test
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@IR(applyIfCPUFeature = { "avx", "true" }, counts = { IRNode.VECTOR_CAST_I2S, IRNode.VECTOR_SIZE + "min(max_int, max_short)", ">0" })
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public short[] vectorMin() {
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short[] res = new short[SIZE];
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for (int i = 0; i < SIZE; i++) {
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res[i] = (short) Math.min(a[i], b[i]);
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}
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return res;
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}
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@Test
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@IR(applyIfCPUFeature = { "avx", "true" }, counts = { IRNode.VECTOR_CAST_I2S, IRNode.VECTOR_SIZE + "min(max_int, max_short)", ">0" })
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public short[] vectorMax() {
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short[] res = new short[SIZE];
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for (int i = 0; i < SIZE; i++) {
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res[i] = (short) Math.max(a[i], b[i]);
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}
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return res;
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}
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@Test
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@IR(applyIfCPUFeatureOr = {"asimd", "true", "sse2", "true", "rvv", "true"},
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counts = {IRNode.RSHIFT_VS, ">0"})
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public short[] vectorUnsignedShiftRight() {
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short[] res = new short[SIZE];
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for (int i = 0; i < SIZE; i++) {
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res[i] = (short) (a[i] >>> 5);
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}
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return res;
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}
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// ------------- ReverseBytes -------------
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@Test
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@IR(applyIfCPUFeatureOr = {"asimd", "true", "avx2", "true", "zvbb", "true"},
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counts = {IRNode.REVERSE_BYTES_VS, ">0"})
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public short[] reverseBytesWithShort() {
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short[] res = new short[SIZE];
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for (int i = 0; i < SIZE; i++) {
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res[i] = Short.reverseBytes(a[i]);
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}
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return res;
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}
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@Test
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// Note that reverseBytes cannot be vectorized if the vector element
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// type doesn't match the caller's class type.
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@IR(failOn = {IRNode.STORE_VECTOR})
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public int[] reverseBytesWithInt() {
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int[] res = new int[SIZE];
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for (int i = 0; i < SIZE; i++) {
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res[i] = Short.reverseBytes((short) idx[i]);
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}
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return res;
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}
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}
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