From bd0949d81fd6d2742fc02c7cd9afd7d1e0f6a536 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Gerg=C3=B6=20Barany?= <gergo.barany@oracle.com>
Date: Fri, 13 Sep 2024 11:10:22 +0200
Subject: [PATCH] Annotate Preconditions.checkIndex to inline the fast path on
 native image

---
 .../Target_jdk_internal_Preconditions.java    | 53 +++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/jdk/Target_jdk_internal_Preconditions.java

diff --git a/substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/jdk/Target_jdk_internal_Preconditions.java b/substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/jdk/Target_jdk_internal_Preconditions.java
new file mode 100644
index 000000000000..44b2dbfff8fb
--- /dev/null
+++ b/substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/jdk/Target_jdk_internal_Preconditions.java
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2024, 2024, 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.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * 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 com.oracle.svm.core.jdk;
+
+import java.util.List;
+import java.util.function.BiFunction;
+
+import com.oracle.svm.core.AlwaysInline;
+import com.oracle.svm.core.NeverInline;
+import com.oracle.svm.core.annotate.AnnotateOriginal;
+import com.oracle.svm.core.annotate.TargetClass;
+
+@TargetClass(jdk.internal.util.Preconditions.class)
+final class Target_jdk_internal_util_Preconditions {
+    @AnnotateOriginal
+    @AlwaysInline("fast path performance")
+    private static native int checkIndex(int index, int length, BiFunction<String, List<Number>, RuntimeException> oobef);
+
+    @AnnotateOriginal
+    @AlwaysInline("fast path performance")
+    private static native long checkIndex(long index, long length, BiFunction<String, List<Number>, RuntimeException> oobef);
+
+    @AnnotateOriginal
+    @NeverInline("slow path code size")
+    private static native RuntimeException outOfBoundsCheckIndex(BiFunction<String, List<Number>, ? extends RuntimeException> oobe, int index, int length);
+
+    @AnnotateOriginal
+    @NeverInline("slow path code size")
+    private static native RuntimeException outOfBoundsCheckIndex(BiFunction<String, List<Number>, ? extends RuntimeException> oobe, long index, long length);
+}