diff --git a/src/hotspot/share/opto/escape.cpp b/src/hotspot/share/opto/escape.cpp index c82eaad50e1..71051ee7bd1 100644 --- a/src/hotspot/share/opto/escape.cpp +++ b/src/hotspot/share/opto/escape.cpp @@ -2184,7 +2184,8 @@ void ConnectionGraph::process_call_arguments(CallNode *call) { strcmp(call->as_CallLeaf()->_name, "vectorizedMismatch") == 0 || strcmp(call->as_CallLeaf()->_name, "arraysort_stub") == 0 || strcmp(call->as_CallLeaf()->_name, "array_partition_stub") == 0 || - strcmp(call->as_CallLeaf()->_name, "get_class_id_intrinsic") == 0) + strcmp(call->as_CallLeaf()->_name, "get_class_id_intrinsic") == 0 || + strcmp(call->as_CallLeaf()->_name, "unsafe_setmemory") == 0) ))) { call->dump(); fatal("EA unexpected CallLeaf %s", call->as_CallLeaf()->_name); diff --git a/test/hotspot/jtreg/compiler/escapeAnalysis/Test8331033.java b/test/hotspot/jtreg/compiler/escapeAnalysis/Test8331033.java new file mode 100644 index 00000000000..68bedd48c8f --- /dev/null +++ b/test/hotspot/jtreg/compiler/escapeAnalysis/Test8331033.java @@ -0,0 +1,106 @@ +/* + * Copyright (c) 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. + * + * 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 + * @bug 8331033 + * @summary EA fails with "EA unexpected CallLeaf unsafe_setmemory" after JDK-8329331 + * @requires vm.compMode != "Xint" + * + * @run main/othervm -Xbatch -XX:-TieredCompilation Test8331033 + * + */ +import java.lang.foreign.*; + +class MyClass { + public int field1; + public int field2; + public int field3; + public int field4; + + public MyClass(int field1, int field2, int field3, int field4) { + this.field1 = field1; + this.field2 = field2; + this.field3 = field3; + this.field4 = field4; + } +} + +public class Test8331033 { + + public static int micro1(int ctr) { + // non-escaping object, EA sweepable, values are forwarded to users, additional + // bookeeping (SafepointScalarObjectNode) for eliminated objects at SafePoints + // With -XX:-Inline, constructor will not be inlined and hence AllocateNode are + // considered escapable. + MyClass obj = new MyClass(10, 20, 30, 40); + return obj.field1 * ctr + obj.field2 + obj.field3 + obj.field4; + } + + public static int micro2(int ctr) { + // small known length arrays of size less than + // -XX:+EliminateAllocationArraySizeLimit are eliminatable if non-escaping. + int[] arr = new int[5]; + arr[0] = 10; + arr[1] = 10; + arr[2] = 10; + arr[3] = 10; + arr[4] = 10; + // value forwarding will forward constants to expressions. + return ctr * arr[0] + arr[1] + arr[2] + arr[3] + arr[4]; + } + + public static int micro3(int ctr) { + int[] arr = new int[8]; + MemorySegment ms = MemorySegment.ofArray(arr); + ms.fill((byte) 10); + return ctr * ms.get(ValueLayout.JAVA_INT, 12) + + ms.get(ValueLayout.JAVA_INT, 16) + + ms.get(ValueLayout.JAVA_INT, 20) + + ms.get(ValueLayout.JAVA_INT, 24); + } + + public static void main(String[] args) { + { + int res = 0; + for (int i = 0; i < 100000; i++) { + res += micro1(i); + } + System.out.println("[res] " + res); + } + { + int res = 0; + for (int i = 0; i < 100000; i++) { + res += micro2(i); + } + System.out.println("[res] " + res); + } + { + int res = 0; + for (int i = 0; i < 100000; i++) { + res += micro3(i); + } + System.out.println("[res] " + res); + } + } +}