/*
* Copyright ( c ) 2013 , 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
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* questions .
*/
/*
* @ test
* @ bug 8011706
* @ summary loop invariant code motion may move load before store to the same field
*
* @ run main / othervm - XX : - UseOnStackReplacement - XX : - BackgroundCompilation
* compiler . c1 . Test8011706
*/
package compiler.c1;
public class Test8011706 {
int [] array;
void m(boolean test, int [] array1, int [] array2) {
int i = 0 ;
if (test) {
array = array1;
} else {
array = array2;
}
while (true ) {
int v = array[i];
i++;
if (i >= 10 ) return ;
}
}
static public void main(String[] args) {
int [] new_array = new int [10 ];
Test8011706 ti = new Test8011706();
boolean failed = false ;
try {
for (int i = 0 ; i < 10000 ; i++) {
ti.array = null ;
ti.m(true , new_array, new_array);
}
} catch (NullPointerException ex) {
throw new RuntimeException("TEST FAILED" , ex);
}
System.out.println("TEST PASSED" );
}
}
Messung V0.5 in Prozent C=98 H=85 G=91
¤ Dauer der Verarbeitung: 0.11 Sekunden
(vorverarbeitet am 2026-06-11)
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