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 · 2026-03-26 17:11:57 -04:00 · 0a580b313d
commit 0a580b313d
70422 changed files with 17213626 additions and 0 deletions
--- a/test/hotspot/jtreg/compiler/predicates/TestDisabledLoopPredicates.java
+++ b/test/hotspot/jtreg/compiler/predicates/TestDisabledLoopPredicates.java
@ -0,0 +1,95 @@
+/*
+ * 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.predicates;
+
+import compiler.lib.ir_framework.*;
+import jdk.test.lib.Asserts;
+
+/*
+ * @test
+ * @bug 8347449
+ * @summary Test that profiled loop predicates are turned off if loop predicates are turned off
+ * @library /test/lib /
+ * @run driver compiler.predicates.TestDisabledLoopPredicates
+ */
+
+public class TestDisabledLoopPredicates {
+    static final int SIZE = 100;
+    static final int MIN = 3;
+
+    public static void main(String[] args) {
+        TestFramework.runWithFlags("-XX:+UseLoopPredicate",
+                                   "-XX:+UseProfiledLoopPredicate");
+        TestFramework.runWithFlags("-XX:-UseLoopPredicate");
+        TestFramework.runWithFlags("-XX:-UseProfiledLoopPredicate");
+    }
+
+    @Run(test = "test")
+    private static void check() {
+        int res = test(true);
+        Asserts.assertEQ(res, ((SIZE - 1) * SIZE - MIN * (MIN + 1)) / 2);
+    }
+
+    @DontInline
+    private static void blackhole(int i) {
+    }
+
+    @DontInline
+    private static int[] getArr() {
+        int[] arr = new int[SIZE];
+        for (int i = 0; i < SIZE; i++) {
+            arr[i] = i;
+        }
+
+        return arr;
+    }
+
+    @Test
+    @IR(counts = { IRNode.LOOP_PARSE_PREDICATE, "1",
+                   IRNode.PROFILED_LOOP_PARSE_PREDICATE, "1" },
+        applyIfAnd = { "UseLoopPredicate", "true",
+                       "UseProfiledLoopPredicate", "true" })
+    @IR(failOn = { IRNode.LOOP_PARSE_PREDICATE,
+                   IRNode.PROFILED_LOOP_PARSE_PREDICATE },
+        applyIf = { "UseLoopPredicate", "false" })
+    @IR(counts = { IRNode.LOOP_PARSE_PREDICATE, "1" },
+        failOn = { IRNode.PROFILED_LOOP_PARSE_PREDICATE },
+        applyIfAnd = { "UseLoopPredicate", "true",
+                       "UseProfiledLoopPredicate", "false" })
+    public static int test(boolean cond) {
+        int[] arr = getArr();
+        int sum = 0;
+        for (int i = 0; i < arr.length; i++) {
+            if (cond) {
+                if (arr[i] > MIN) {
+                    sum += arr[i];
+                }
+            }
+            blackhole(arr[i]);
+        }
+
+        return sum;
+    }
+}