8292780: misc tests failed "assert(false) failed: graph should be schedulable"
Reviewed-by: dlong, chagedorn, thartmann
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parent
bf39b184ca
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16047e8308
src/hotspot/share/opto
test/hotspot/jtreg/compiler/arraycopy
@ -1498,7 +1498,12 @@ static bool stable_phi(PhiNode* phi, PhaseGVN *phase) {
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}
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//------------------------------split_through_phi------------------------------
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// Split instance or boxed field load through Phi.
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Node *LoadNode::split_through_phi(PhaseGVN *phase) {
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Node* LoadNode::split_through_phi(PhaseGVN* phase) {
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if (req() > 3) {
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assert(is_LoadVector() && Opcode() != Op_LoadVector, "load has too many inputs");
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// LoadVector subclasses such as LoadVectorMasked have extra inputs that the logic below doesn't take into account
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return NULL;
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}
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Node* mem = in(Memory);
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Node* address = in(Address);
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const TypeOopPtr *t_oop = phase->type(address)->isa_oopptr();
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@ -0,0 +1,46 @@
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/*
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* Copyright (c) 2022, Red Hat, Inc. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug JDK-8292780
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* @summary misc tests failed "assert(false) failed: graph should be schedulable"
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*
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* @run main/othervm -XX:-TieredCompilation -XX:-BackgroundCompilation -XX:-UseOnStackReplacement TestArrayCopyPartialInliningLoadSplit
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*/
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public class TestArrayCopyPartialInliningLoadSplit {
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public static void main(String[] args) {
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byte[] array = new byte[16];
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for (int i = 0; i < 20_0000; i++) {
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test(array, 16, 0, 0);
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}
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}
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private static void test(byte[] array, int length, int srcPos, int dstPos) {
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byte[] nonEscaping = new byte[16];
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nonEscaping[0] = 0x42;
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System.arraycopy(array, srcPos, nonEscaping, 1, 8);
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System.arraycopy(nonEscaping, 0, array, 0, length);
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}
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}
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