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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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test/hotspot/jtreg/compiler/vectorization/runner/LoopRangeStrideTest.java Normal file
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/*
* Copyright (c) 2022, 2023, Arm Limited. All rights reserved.
* Copyright (c) 2023, 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.
*/
/*
* @test
* @summary Vectorization test on different loop ranges and strides
* @library /test/lib /
*
* @build jdk.test.whitebox.WhiteBox
* compiler.vectorization.runner.VectorizationTestRunner
*
* @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
* @run main/othervm -Xbootclasspath/a:.
* -XX:+UnlockDiagnosticVMOptions
* -XX:+WhiteBoxAPI
* compiler.vectorization.runner.LoopRangeStrideTest
*
* @requires (os.simpleArch == "x64") | (os.simpleArch == "aarch64") | (os.simpleArch == "riscv64")
* @requires vm.compiler2.enabled
*/
package compiler.vectorization.runner;
import compiler.lib.ir_framework.*;
import java.util.Random;
public class LoopRangeStrideTest extends VectorizationTestRunner {
private static final int SIZE = 543;
private int[] a;
private int[] b;
private int start;
private int end;
public LoopRangeStrideTest() {
a = new int[SIZE];
b = new int[SIZE];
for (int i = 0; i < SIZE; i++) {
a[i] = -i / 2;
b[i] = 444 * i - 12345;
}
Random ran = new Random(0);
start = Math.abs(ran.nextInt() % 100);
end = start + 315;
}
// ---------------- Range ----------------
@Test
public int[] smallConstantRange() {
int[] res = new int[SIZE];
for (int i = 20; i < 27; i++) {
res[i] = a[i] + b[i];
}
return res;
}
@Test
@IR(applyIfCPUFeatureOr = {"asimd", "true", "sse2", "true", "rvv", "true"},
counts = {IRNode.STORE_VECTOR, ">0"})
public int[] nonConstantRange() {
int[] res = new int[SIZE];
for (int i = start; i < end; i++) {
res[i] = a[i] - b[i];
}
return res;
}
@Test
@IR(applyIfCPUFeatureOr = {"asimd", "true", "sse2", "true", "rvv", "true"},
counts = {IRNode.STORE_VECTOR, ">0"})
public int[] crossZeroRange() {
int[] res = new int[SIZE];
for (int i = -20; i < 20; i++) {
res[i + 50] = a[i + 50] + b[i + 50];
}
return res;
}
@Test
@IR(applyIfCPUFeatureOr = {"asimd", "true", "sse2", "true", "rvv", "true"},
counts = {IRNode.STORE_VECTOR, ">0"})
public int[] nonEqualTestRange() {
int[] res = new int[SIZE];
for (int i = start; i != end; i++) {
res[i] = a[i] - b[i];
}
return res;
}
@Test
@IR(applyIfCPUFeatureOr = {"asimd", "true", "sse4.1", "true", "rvv", "true"},
counts = {IRNode.STORE_VECTOR, ">0"})
public int[] shortInductionLoop() {
int[] res = new int[SIZE];
for (short s = 123; s < 456; s++) {
res[s] = a[s] * b[s];
}
return res;
}
@Test
@IR(applyIfCPUFeatureOr = {"asimd", "true", "sse2", "true", "rvv", "true"},
counts = {IRNode.STORE_VECTOR, ">0"})
public int[] whileLoop() {
int[] res = new int[SIZE];
int i = start;
while (i < end) {
res[i] = a[i] & b[i];
i++;
}
return res;
}
@Test
@IR(applyIfCPUFeatureOr = {"asimd", "true", "sse2", "true", "rvv", "true"},
counts = {IRNode.STORE_VECTOR, ">0"})
public int[] doWhileLoop() {
int[] res = new int[SIZE];
int i = start;
do {
res[i] = a[i] | b[i];
i++;
} while (i < end);
return res;
}
// ---------------- Stride ----------------
@Test
public int[] stride2Loop() {
int[] res = new int[SIZE];
for (int i = 0; i < SIZE; i += 2) {
res[i] = a[i] * b[i];
}
return res;
}
@Test
public int[] stride3Loop() {
int[] res = new int[SIZE];
for (int i = 0; i < SIZE; i += 3) {
res[i] = a[i] * b[i];
}
return res;
}
@Test
public int[] stride4Loop() {
int[] res = new int[SIZE];
for (int i = 0; i < SIZE; i += 4) {
res[i] = a[i] * b[i];
}
return res;
}
@Test
@IR(applyIfCPUFeatureOr = {"asimd", "true", "sse4.1", "true", "rvv", "true"},
counts = {IRNode.STORE_VECTOR, ">0"})
public int[] countDownLoop() {
int[] res = new int[SIZE];
for (int i = SIZE - 1; i > 0; i--) {
res[i] = a[i] * b[i];
}
return res;
}
@Test
public int[] strideMinus2Loop() {
int[] res = new int[SIZE];
for (int i = SIZE - 1; i > 0; i -= 2) {
res[i] = a[i] * b[i];
}
return res;
}
// ---------- Stride with scale ----------
@Test
@IR(applyIfCPUFeatureOr = {"asimd", "true", "sse4.1", "true", "rvv", "true"},
counts = {IRNode.STORE_VECTOR, ">0"})
public int[] countupLoopWithNegScale() {
int[] res = new int[SIZE];
for (int i = SIZE / 2; i < SIZE; i++) {
res[SIZE - i] = a[SIZE - i] * b[SIZE - i];
}
return res;
}
@Test
@IR(applyIfCPUFeatureOr = {"asimd", "true", "sse4.1", "true", "rvv", "true"},
counts = {IRNode.STORE_VECTOR, ">0"})
public int[] countDownLoopWithNegScale() {
int[] res = new int[SIZE];
for (int i = SIZE / 2; i > 0; i--) {
res[SIZE - i] = a[SIZE - i] * b[SIZE - i];
}
return res;
}
}