8202952: C2: Unexpected dead nodes after matching
Reviewed-by: kvn
This commit is contained in:
parent
6a61345684
commit
50e3aa4150
@ -1638,6 +1638,7 @@ bool Matcher::clone_address_expressions(AddPNode* m, Matcher::MStack& mstack, Ve
|
||||
// Cheap to find it by looking for screwy base.
|
||||
if (adr->is_AddP() &&
|
||||
!adr->in(AddPNode::Base)->is_top() &&
|
||||
LP64_ONLY( off->get_long() == (int) (off->get_long()) && ) // immL32
|
||||
// Are there other uses besides address expressions?
|
||||
!is_visited(adr)) {
|
||||
address_visited.set(adr->_idx); // Flag as address_visited
|
||||
|
60
test/hotspot/jtreg/compiler/c2/TestMatcherLargeOffset.java
Normal file
60
test/hotspot/jtreg/compiler/c2/TestMatcherLargeOffset.java
Normal file
@ -0,0 +1,60 @@
|
||||
/*
|
||||
* Copyright (c) 2019, 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 8202952
|
||||
* @summary C2: Unexpected dead nodes after matching
|
||||
*
|
||||
* @run main/othervm -XX:-TieredCompilation -Xcomp -XX:CompileOnly=::test
|
||||
* compiler.c2.TestMatcherLargeOffset
|
||||
*/
|
||||
package compiler.c2;
|
||||
|
||||
public class TestMatcherLargeOffset {
|
||||
public static final int N = 400;
|
||||
public static int iArrFld[] = new int[N];
|
||||
|
||||
public static void m(int i4) {
|
||||
i4 |= -104;
|
||||
iArrFld[(i4 >>> 1) % N] >>= i4;
|
||||
}
|
||||
|
||||
public static void test() {
|
||||
int i2 = 1, i24 = 65;
|
||||
for (int i1 = 7; i1 < 384; ++i1) {
|
||||
for (long l = 2; l < 67; l++) {
|
||||
m(i2);
|
||||
for (i24 = 1; 2 > i24; ++i24) {
|
||||
iArrFld = iArrFld;
|
||||
}
|
||||
}
|
||||
i2 = (-229 / i24);
|
||||
}
|
||||
}
|
||||
public static void main(String[] strArr) {
|
||||
for (int i = 0; i < 5; i++ ) {
|
||||
test();
|
||||
}
|
||||
}
|
||||
}
|
Loading…
x
Reference in New Issue
Block a user