archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-09-19 10:34:38 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

8263972: C2: LoadVector/StoreVector type mismatch in MemNode::can_see_stored_value()

Browse source 
Reviewed-by: kvn, thartmann
This commit is contained in:
Vladimir Ivanov 2021-04-27 16:34:28 +00:00
parent 377b346189
commit b2628d15b5
2 changed files with 82 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

71
test/hotspot/jtreg/compiler/vectorization/TestMemoryVectorMismatched.java Normal file
View file

@ -0,0 +1,71 @@
/*
* Copyright (c) 2021, 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.
*/
package compiler.vectorization;
/**
* @test
* @bug 8263972
* @requires vm.compiler2.enabled & vm.compMode != "Xint"
*
* @run main/othervm -Xcomp -XX:-TieredCompilation -XX:CompileCommand=quiet -XX:CompileCommand=compileonly,*TestMemoryVectorMismatched::test compiler.vectorization.TestMemoryVectorMismatched
*/
public class TestMemoryVectorMismatched {
public static void main(String[] g) {
int a = 400;
long expected = -35984L;
for (int i = 0; i < 10; i++) {
long v = test(a);
if (v != expected) {
throw new AssertionError("Wrong result: " + v + " != " + expected);
}
}
}
static long test(int a) {
int i16, d = 5, e = -56973;
long f[] = new long[a];
init(f, 5);
for (i16 = 2; i16 < 92; i16++) {
f[i16 - 1] *= d;
f[i16 + 1] *= d;
}
while (++e < 0) {
}
return checkSum(f);
}
public static void init(long[] a, long seed) {
for (int j = 0; j < a.length; j++) {
a[j] = (j % 2 == 0) ? seed + j : seed - j;
}
}
public static long checkSum(long[] a) {
long sum = 0;
for (int j = 0; j < a.length; j++) {
sum += (a[j] / (j + 1) + a[j] % (j + 1));
}
return sum;
}
}