jdk/test/hotspot/jtreg/compiler/rangechecks/TestArrayAccessAboveRCAfterRCCastIIEliminated.java
Roland Westrelin d8a1c1d04c 8354282: C2: more crashes in compiled code because of dependency on removed range check CastIIs
Reviewed-by: chagedorn
Backport-of: 00068a80304a809297d0df8698850861e9a1c5e9
2026-01-05 14:46:49 +00:00

555 lines
18 KiB
Java

/*
* Copyright (c) 2024, 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 8332827
* @summary [REDO] C2: crash in compiled code because of dependency on removed range check CastIIs
*
* @run main/othervm -XX:-TieredCompilation -XX:-UseOnStackReplacement -XX:-BackgroundCompilation
* -XX:CompileCommand=dontinline,TestArrayAccessAboveRCAfterRCCastIIEliminated::notInlined
* TestArrayAccessAboveRCAfterRCCastIIEliminated
* @run main/othervm -XX:-TieredCompilation -XX:-UseOnStackReplacement -XX:-BackgroundCompilation
* -XX:CompileCommand=dontinline,TestArrayAccessAboveRCAfterRCCastIIEliminated::notInlined
* -XX:+UnlockDiagnosticVMOptions -XX:+StressGCM TestArrayAccessAboveRCAfterRCCastIIEliminated
* @run main TestArrayAccessAboveRCAfterRCCastIIEliminated
* @run main/othervm -XX:CompileCommand=dontinline,TestArrayAccessAboveRCAfterRCCastIIEliminated::notInlined
* TestArrayAccessAboveRCAfterRCCastIIEliminated
*
*/
public class TestArrayAccessAboveRCAfterRCCastIIEliminated {
private static int intField;
private static long longField;
private static volatile int volatileField;
public static void main(String[] args) {
for (int i = 0; i < 20_000; i++) {
test1(9, 10, 1, true);
test1(9, 10, 1, false);
test2(9, 10, 1, true);
test2(9, 10, 1, false);
test3(9, 10, 1, true);
test3(9, 10, 1, false);
test4(9, 10, 1, true);
test4(9, 10, 1, false);
test5(9, 10, 1, true);
test5(9, 10, 1, false);
test6(9, 10, 1, true);
test6(9, 10, 1, false);
test7(9, 10, 1, true);
test7(9, 10, 1, false);
test8(9, 10, 1, true);
test8(9, 10, 1, false);
test9(9, 10, 1, true);
test9(9, 10, 1, false);
test10(9, 10, 1, true);
test10(9, 10, 1, false);
test11(9, 10, 1, true);
test11(9, 10, 1, false);
test12(9, 10, 1, true);
test12(9, 10, 1, false);
test13(9, 10, 1, true);
test13(9, 10, 1, false);
test14(8, 0, 1, true);
test14(8, 0, 1, false);
inlined14(0, 0);
test15(8, 0, 1, true);
test15(8, 0, 1, false);
inlined15(0, 0);
}
try {
test1(-1, 10, 1, true);
} catch (ArrayIndexOutOfBoundsException arrayIndexOutOfBoundsException) {
}
try {
test2(-1, 10, 1, true);
} catch (ArrayIndexOutOfBoundsException arrayIndexOutOfBoundsException) {
}
try {
test3(-1, 10, 1, true);
} catch (ArrayIndexOutOfBoundsException arrayIndexOutOfBoundsException) {
}
try {
test4(-1, 10, 1, true);
} catch (ArrayIndexOutOfBoundsException arrayIndexOutOfBoundsException) {
}
try {
test5(-1, 10, 1, true);
} catch (ArrayIndexOutOfBoundsException arrayIndexOutOfBoundsException) {
}
try {
test6(-1, 10, 1, true);
} catch (ArrayIndexOutOfBoundsException arrayIndexOutOfBoundsException) {
}
try {
test7(-1, 10, 1, true);
} catch (ArrayIndexOutOfBoundsException arrayIndexOutOfBoundsException) {
}
try {
test8(-1, 10, 1, true);
} catch (ArrayIndexOutOfBoundsException arrayIndexOutOfBoundsException) {
}
try {
test9(-1, 10, 1, true);
} catch (ArrayIndexOutOfBoundsException arrayIndexOutOfBoundsException) {
}
try {
test10(-1, 10, 1, true);
} catch (ArrayIndexOutOfBoundsException arrayIndexOutOfBoundsException) {
}
try {
test11(-1, 10, 1, true);
} catch (ArrayIndexOutOfBoundsException arrayIndexOutOfBoundsException) {
}
try {
test12(-1, 10, 1, true);
} catch (ArrayIndexOutOfBoundsException arrayIndexOutOfBoundsException) {
}
try {
test13(-1, 10, 1, true);
} catch (ArrayIndexOutOfBoundsException arrayIndexOutOfBoundsException) {
}
try {
test14(Integer.MAX_VALUE, 10, 1, true);
} catch (ArrayIndexOutOfBoundsException arrayIndexOutOfBoundsException) {
}
try {
test15(Integer.MAX_VALUE, 10, 1, true);
} catch (ArrayIndexOutOfBoundsException arrayIndexOutOfBoundsException) {
}
}
private static void test1(int i, int j, int flag, boolean flag2) {
i = Math.min(i, 9);
int[] array = new int[10];
notInlined(array);
if (flag == 0) {
}
if (flag2) {
float[] newArray = new float[j];
newArray[i] = 42;
float[] otherArray = new float[i];
if (flag == 0) {
}
intField = array[otherArray.length];
} else {
float[] newArray = new float[j];
newArray[i] = 42;
float[] otherArray = new float[i];
if (flag == 0) {
}
intField = array[otherArray.length];
}
for (int k = 0; k < 10; k++) {
}
}
private static void test2(int i, int j, int flag, boolean flag2) {
i = Math.min(i, 9);
int[] array = new int[10];
notInlined(array);
if (flag == 0) {
}
if (flag2) {
float[] newArray = new float[j];
newArray[i] = 42;
float[] otherArray = new float[i];
if (flag == 0) {
}
intField = 1 / (otherArray.length + 1);
} else {
float[] newArray = new float[j];
newArray[i] = 42;
float[] otherArray = new float[i];
if (flag == 0) {
}
intField = 1 / (otherArray.length + 1);
}
for (int k = 0; k < 10; k++) {
}
}
private static void test3(int i, int j, int flag, boolean flag2) {
i = Math.min(i, 9);
int[] array = new int[10];
notInlined(array);
if (flag == 0) {
}
if (flag2) {
float[] newArray = new float[j];
newArray[i] = 42;
float[] otherArray = new float[i];
if (flag == 0) {
}
longField = 1L / (otherArray.length + 1);
} else {
float[] newArray = new float[j];
newArray[i] = 42;
float[] otherArray = new float[i];
if (flag == 0) {
}
longField = 1L / (otherArray.length + 1);
}
for (int k = 0; k < 10; k++) {
}
}
private static void test4(int i, int j, int flag, boolean flag2) {
i = Math.min(i, 9);
int[] array = new int[10];
notInlined(array);
if (flag == 0) {
}
if (flag2) {
float[] newArray = new float[j];
newArray[i] = 42;
float[] otherArray = new float[i];
if (flag == 0) {
}
intField = 1 % (otherArray.length + 1);
} else {
float[] newArray = new float[j];
newArray[i] = 42;
float[] otherArray = new float[i];
if (flag == 0) {
}
intField = 1 % (otherArray.length + 1);
}
for (int k = 0; k < 10; k++) {
}
}
private static void test5(int i, int j, int flag, boolean flag2) {
i = Math.min(i, 9);
int[] array = new int[10];
notInlined(array);
if (flag == 0) {
}
if (flag2) {
float[] newArray = new float[j];
newArray[i] = 42;
float[] otherArray = new float[i];
if (flag == 0) {
}
longField = 1L % (otherArray.length + 1);
} else {
float[] newArray = new float[j];
newArray[i] = 42;
float[] otherArray = new float[i];
if (flag == 0) {
}
longField = 1L % (otherArray.length + 1);
}
for (int k = 0; k < 10; k++) {
}
}
private static void test6(int i, int j, int flag, boolean flag2) {
i = Math.min(i, 9);
int[] array = new int[10];
notInlined(array);
if (flag == 0) {
}
if (flag2) {
float[] newArray = new float[j];
newArray[i] = 42;
float[] otherArray = new float[i];
if (flag == 0) {
}
intField = 1 % (otherArray.length + 1) + 1 / (otherArray.length + 1);
} else {
float[] newArray = new float[j];
newArray[i] = 42;
float[] otherArray = new float[i];
if (flag == 0) {
}
intField = 1 % (otherArray.length + 1) + 1 / (otherArray.length + 1);
}
for (int k = 0; k < 10; k++) {
}
}
private static void test7(int i, int j, int flag, boolean flag2) {
i = Math.min(i, 9);
int[] array = new int[10];
notInlined(array);
if (flag == 0) {
}
if (flag2) {
float[] newArray = new float[j];
newArray[i] = 42;
float[] otherArray = new float[i];
if (flag == 0) {
}
longField = 1L % (otherArray.length + 1) + 1L / (otherArray.length + 1);
} else {
float[] newArray = new float[j];
newArray[i] = 42;
float[] otherArray = new float[i];
if (flag == 0) {
}
longField = 1L % (otherArray.length + 1) + 1L / (otherArray.length + 1);
}
for (int k = 0; k < 10; k++) {
}
}
private static void test8(int i, int j, int flag, boolean flag2) {
i = Math.min(i, 9);
int[] array = new int[10];
notInlined(array);
if (flag == 0) {
}
if (flag2) {
float[] newArray = new float[j];
newArray[i] = 42;
float[] otherArray = new float[i];
if (flag == 0) {
}
intField = Integer.divideUnsigned(1, (otherArray.length + 1));
} else {
float[] newArray = new float[j];
newArray[i] = 42;
float[] otherArray = new float[i];
if (flag == 0) {
}
intField = Integer.divideUnsigned(1, (otherArray.length + 1));
}
for (int k = 0; k < 10; k++) {
}
}
private static void test9(int i, int j, int flag, boolean flag2) {
i = Math.min(i, 9);
int[] array = new int[10];
notInlined(array);
if (flag == 0) {
}
if (flag2) {
float[] newArray = new float[j];
newArray[i] = 42;
float[] otherArray = new float[i];
if (flag == 0) {
}
longField = Long.divideUnsigned(1L, (otherArray.length + 1));
} else {
float[] newArray = new float[j];
newArray[i] = 42;
float[] otherArray = new float[i];
if (flag == 0) {
}
longField = Long.divideUnsigned(1L, (otherArray.length + 1));
}
for (int k = 0; k < 10; k++) {
}
}
private static void test10(int i, int j, int flag, boolean flag2) {
i = Math.min(i, 9);
int[] array = new int[10];
notInlined(array);
if (flag == 0) {
}
if (flag2) {
float[] newArray = new float[j];
newArray[i] = 42;
float[] otherArray = new float[i];
if (flag == 0) {
}
intField = Integer.remainderUnsigned(1, (otherArray.length + 1));
} else {
float[] newArray = new float[j];
newArray[i] = 42;
float[] otherArray = new float[i];
if (flag == 0) {
}
intField = Integer.remainderUnsigned(1, (otherArray.length + 1));
}
for (int k = 0; k < 10; k++) {
}
}
private static void test11(int i, int j, int flag, boolean flag2) {
i = Math.min(i, 9);
int[] array = new int[10];
notInlined(array);
if (flag == 0) {
}
if (flag2) {
float[] newArray = new float[j];
newArray[i] = 42;
float[] otherArray = new float[i];
if (flag == 0) {
}
longField = Long.remainderUnsigned(1L, (otherArray.length + 1));
} else {
float[] newArray = new float[j];
newArray[i] = 42;
float[] otherArray = new float[i];
if (flag == 0) {
}
longField = Long.remainderUnsigned(1L, (otherArray.length + 1));
}
for (int k = 0; k < 10; k++) {
}
}
private static void test12(int i, int j, int flag, boolean flag2) {
i = Math.min(i, 9);
int[] array = new int[10];
notInlined(array);
if (flag == 0) {
}
if (flag2) {
float[] newArray = new float[j];
newArray[i] = 42;
float[] otherArray = new float[i];
if (flag == 0) {
}
intField = Integer.divideUnsigned(1, (otherArray.length + 1)) +
Integer.remainderUnsigned(1, (otherArray.length + 1));
} else {
float[] newArray = new float[j];
newArray[i] = 42;
float[] otherArray = new float[i];
if (flag == 0) {
}
intField = Integer.divideUnsigned(1, (otherArray.length + 1)) +
Integer.remainderUnsigned(1, (otherArray.length + 1));
}
for (int k = 0; k < 10; k++) {
}
}
private static void test13(int i, int j, int flag, boolean flag2) {
i = Math.min(i, 9);
int[] array = new int[10];
notInlined(array);
if (flag == 0) {
}
if (flag2) {
float[] newArray = new float[j];
newArray[i] = 42;
float[] otherArray = new float[i];
if (flag == 0) {
}
longField = Long.remainderUnsigned(1L, (otherArray.length + 1)) +
Long.divideUnsigned(1L, (otherArray.length + 1));
} else {
float[] newArray = new float[j];
newArray[i] = 42;
float[] otherArray = new float[i];
if (flag == 0) {
}
longField = Long.remainderUnsigned(1L, (otherArray.length + 1)) +
Long.divideUnsigned(1L, (otherArray.length + 1));
}
for (int k = 0; k < 10; k++) {
}
}
// Range check cast type widen after loop opts causes control dependency to be lost
private static void test14(int i, int j, int flag, boolean flag2) {
int l = 0;
for (; l < 10; l++);
j = inlined14(j, l);
int[] array = new int[10];
notInlined(array);
if (flag == 0) {
}
if (flag2) {
float[] newArray = new float[10];
newArray[i+j] = 42; // i+j in [0, 9]
float[] otherArray = new float[i+j]; // i+j in [0, max]
if (flag == 0) {
}
intField = array[otherArray.length];
} else {
float[] newArray = new float[10];
newArray[i+j] = 42; // i+j in [0, 9]
float[] otherArray = new float[i+j]; // i+j in [0, max]
if (flag == 0) {
}
intField = array[otherArray.length];
}
}
private static int inlined14(int j, int l) {
if (l == 10) {
j = 1;
}
return j;
}
private static void test15(int i, int j, int flag, boolean flag2) {
i = Integer.max(i, Integer.MIN_VALUE + 1);
int l = 0;
for (; l < 10; l++);
j = inlined15(j, l);
int[] array = new int[10];
notInlined(array);
if (flag == 0) {
}
if (flag2) {
float[] newArray = new float[10];
newArray[i+j] = 42; // i+j in [0, 9]
float[] otherArray = new float[i+j]; // i+j in [0, max]
if (flag == 0) {
}
intField = array[otherArray.length];
} else {
float[] newArray = new float[10];
newArray[i+j] = 42; // i+j in [0, 9]
float[] otherArray = new float[i+j]; // i+j in [0, max]
if (flag == 0) {
}
intField = array[otherArray.length];
}
}
private static int inlined15(int j, int l) {
if (l == 10) {
j = Integer.max(j, Integer.MIN_VALUE + 10);
}
return j;
}
private static void notInlined(int[] array) {
}
}