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/*
* Copyright (c) 2020, 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 8244724
* @summary Test which exceeds the live node limit in Compile::Code_Gen(). The previouslz failing assert is now only checked during parsing and during Compile::Optimize().
*
* @compile -XDstringConcat=inline TestLiveNodeLimit.java
* @run main/othervm -Xcomp -XX:CompileCommand=compileonly,compiler.c2.TestLiveNodeLimit::test* compiler.c2.TestLiveNodeLimit
*/
package compiler.c2;
import java.util.ArrayList;
public class TestLiveNodeLimit {
public static ArrayList<String> arrList = new ArrayList<String>();
public static void main(String[] args) {
for (int i = 0; i < 10000; i++) {
testNodeLimitInBuildCfg();
testNodeLimitInGlobalCodeMotion();
}
}
// Hits live node limit in PhaseCFG::build_cfg(). There are around 70000 nodes right before build_cfg()
// which creates another 15000 nodes which exceeds the default max node limit of 80000.
public static int testNodeLimitInBuildCfg() {
// Just some string operations that create a lot of nodes when compiled with javac with -XDstringConcat=inline
// which generate a lot of StringBuilder objects and calls
String someString = "as@df#as@df" + "fdsa";
String[] split = someString.split("#");
String[] tmp1 = split[0].split("@");
String[] tmp2 = split[0].split("@");
String concat1 = tmp1[0] + tmp2[0] + split[0];
String concat2 = tmp1[0] + tmp2[0] + split[0];
String concat3 = tmp1[0] + tmp2[0];
String concat4 = tmp1[0] + tmp2[0];
String string1 = "string1";
String[] stringArr1 = arrList.toArray(new String[4]);
String[] stringArr2 = new String[3];
String[] stringArr3 = new String[3];
if (stringArr1.length > 1) {
stringArr2 = new String[3 * stringArr1.length];
stringArr3 = new String[3 * stringArr1.length];
for (int i = 0; i < stringArr1.length; i++) {
stringArr2[3 * i ] = string1 + concat1 + concat3 + stringArr1[i];
stringArr2[3 * i + 1] = string1 + concat1 + concat3 + stringArr1[i];
stringArr2[3 * i + 2] = string1 + concat1 + concat3 + stringArr1[i];
stringArr3[3 * i ] = string1 + concat2 + concat3 + concat4 + stringArr1[i];
stringArr3[3 * i + 1] = string1 + concat2 + concat3 + concat4 + stringArr1[i];
stringArr3[3 * i + 2] = string1 + concat2 + concat3 + concat4 + stringArr1[i];
}
}
return stringArr1.length + stringArr2.length + stringArr3.length;
}
// Hits live node limit in PhaseCFG::global_code_motion(). There are around 79000 nodes right before global_code_motion()
// which creates another 2000 nodes which exceeds the default max node limit of 80000.
public static int testNodeLimitInGlobalCodeMotion() {
// Just some string operations that create a lot of nodes when compiled with javac with -XDstringConcat=inline
// which generate a lot of StringBuilder objects and calls
String someString = "as@df#as@df" + "fdsa";
String[] split = someString.split("#");
String[] tmp1 = split[0].split("@");
String[] tmp2 = split[0].split("@");
String concat1 = tmp1[0] + tmp2[0] + split[0];
String concat2 = tmp1[0] + tmp2[0] + split[0];
String concat3 = tmp1[0] + tmp2[0] + split[0];
String concat4 = tmp1[0] + tmp2[0] + split[0];
String string1 = "string1";
String[] stringArr1 = arrList.toArray(new String[4]);
String[] stringArr2 = new String[3];
String[] stringArr3 = new String[3];
if (stringArr1.length > 1) {
stringArr2 = new String[3 * stringArr1.length];
stringArr3 = new String[3 * stringArr1.length];
for (int i = 0; i < stringArr1.length; i++) {
stringArr2[3 * i ] = string1 + concat1 + concat3 + stringArr1[i];
stringArr2[3 * i + 1] = string1 + concat1 + concat3 + stringArr1[i];
stringArr2[3 * i + 2] = string1 + concat1 + concat3 + stringArr1[i];
stringArr3[3 * i ] = string1 + concat2 + concat4 + stringArr1[i];
stringArr3[3 * i + 1] = string1 + concat2 + concat4 + stringArr1[i];
stringArr3[3 * i + 2] = string1 + concat2 + stringArr1[i];
}
}
return stringArr1.length + stringArr2.length + stringArr3.length;
}
}
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