diff --git a/src/hotspot/share/opto/loopnode.cpp b/src/hotspot/share/opto/loopnode.cpp index 73cb22c6db8..185061fbdb3 100644 --- a/src/hotspot/share/opto/loopnode.cpp +++ b/src/hotspot/share/opto/loopnode.cpp @@ -2014,7 +2014,8 @@ bool PhaseIdealLoop::is_counted_loop(Node* x, IdealLoopTree*&loop, BasicType iv_ bool strip_mine_loop = iv_bt == T_INT && loop->_child == nullptr && sfpt != nullptr && - !loop->_has_call; + !loop->_has_call && + is_deleteable_safept(sfpt); IdealLoopTree* outer_ilt = nullptr; if (strip_mine_loop) { outer_ilt = create_outer_strip_mined_loop(test, cmp, init_control, loop, diff --git a/test/hotspot/jtreg/compiler/loopstripmining/TestNondeleteableSafePoint.java b/test/hotspot/jtreg/compiler/loopstripmining/TestNondeleteableSafePoint.java new file mode 100644 index 00000000000..e8231eb72dd --- /dev/null +++ b/test/hotspot/jtreg/compiler/loopstripmining/TestNondeleteableSafePoint.java @@ -0,0 +1,56 @@ +/* + * Copyright (c) 2023, Red Hat, Inc. 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 8307131 + * @summary C2: assert(false) failed: malformed control flow + * @library /test/lib + * @run main/othervm -Xcomp -XX:CompileOnly=TestNondeleteableSafePoint -XX:-TieredCompilation TestNondeleteableSafePoint + */ + +import jdk.test.lib.Utils; + +public class TestNondeleteableSafePoint { + static int N; + + public static void main(String[] strArr) throws Exception { + Thread thread = new Thread() { + public void run() { + test(); + } + }; + // Give thread some time to trigger compilation + thread.setDaemon(true); + thread.start(); + Thread.sleep(Utils.adjustTimeout(500)); + } + + static void test() { + int i19, i21, iArr1[] = new int[N]; + while (true) { + for (i19 = i21 = 2; i21 > i19; --i21) { + } + } + } +}