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6758234: if (k cond (a ? : b: c)) returns reversed answer if k is constant and b and c are longs

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Reviewed-by: kvn, jrose
This commit is contained in:
Tom Rodriguez 2008-12-12 19:55:26 -08:00
parent 40a81c63b8
commit baa4663714
2 changed files with 40 additions and 2 deletions
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2
hotspot/src/share/vm/c1/c1_Optimizer.cpp
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@ -327,8 +327,6 @@ class BlockMerger: public BlockClosure {
BlockBegin* fsux = if_->fsux();
if (swapped) {
cond = Instruction::mirror(cond);
tsux = if_->fsux();
fsux = if_->tsux();
}
BlockBegin* tblock = tval->compare(cond, con, tsux, fsux);

40
hotspot/test/compiler/6758234/Test6758234.java Normal file
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@ -0,0 +1,40 @@
/*
* Copyright 2008 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 6758234
* @summary if (k cond (a ? : b: c)) returns reversed answer if k is constant and b and c are longs
* @run main/othervm -Xcomp -XX:CompileOnly=Test6758234.main Test6758234
*/
public class Test6758234 {
static int x = 0;
static int y = 1;
public static void main(String[] args) {
if (1 != ((x < y) ? 1L : 0)) {
throw new InternalError();
}
}
}