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6837011: SIGSEGV in PhaseIdealLoop in 32bit jvm

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The CR's test crashes with SIGSEGV when running with "-server -Xcomp" using using 32bit jvm.

Reviewed-by: kvn, never, rasbold
This commit is contained in:
Christian Thalinger 2009-05-06 12:04:42 -07:00
parent 716c78f080
commit 96139033e6
2 changed files with 48 additions and 1 deletions
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4
hotspot/src/share/vm/opto/divnode.cpp
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@ -298,8 +298,10 @@ static Node* long_by_long_mulhi(PhaseGVN* phase, Node* dividend, jlong magic_con
// 6732154: Construct both w1 and w2 before transforming, so t
// doesn't go dead prematurely.
w1 = phase->transform(w1);
// 6837011: We need to transform w2 before w1 because the
// transformation of w1 could return t.
w2 = phase->transform(w2);
w1 = phase->transform(w1);
// w1 = u0*v1 + w1;
Node* u0v1 = phase->transform(new (phase->C, 3) MulLNode(u0, v1));

45
hotspot/test/compiler/6837011/Test6837011.java Normal file
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@ -0,0 +1,45 @@
/*
* Copyright 2009 Sun Microsystems, 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
/**
* @test
* @bug 6837011
* @summary SIGSEGV in PhaseIdealLoop in 32bit jvm
*
* @run main/othervm -Xcomp -XX:CompileOnly=Test6837011.main Test6837011
*/
public class Test6837011 {
static boolean var_3 = true;
public static void main(String[] args) {
double var_5;
char var_7 = 1;
double var_11 = 0;
do {
var_11++;
var_5 = (var_7 /= ( var_3 ? ~1L : 3 ) );
} while (var_11 < 1);
}
}