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7123108: C1: assert(if_state != NULL) failed: states do not match up

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In CEE, ensure if and common successor state are at the same inline level

Reviewed-by: never
This commit is contained in:
Roland Westrelin 2011-12-22 10:55:53 +01:00
parent 97439fb4ff
commit c10042bc68
2 changed files with 70 additions and 3 deletions
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13
hotspot/src/share/vm/c1/c1_Optimizer.cpp
View File

@ -125,9 +125,16 @@ void CE_Eliminator::block_do(BlockBegin* block) {
// inlining depths must match
ValueStack* if_state = if_->state();
ValueStack* sux_state = sux->state();
while (sux_state->scope() != if_state->scope()) {
if_state = if_state->caller_state();
assert(if_state != NULL, "states do not match up");
if (if_state->scope()->level() > sux_state->scope()->level()) {
while (sux_state->scope() != if_state->scope()) {
if_state = if_state->caller_state();
assert(if_state != NULL, "states do not match up");
}
} else if (if_state->scope()->level() < sux_state->scope()->level()) {
while (sux_state->scope() != if_state->scope()) {
sux_state = sux_state->caller_state();
assert(sux_state != NULL, "states do not match up");
}
}
if (sux_state->stack_size() <= if_state->stack_size()) return;

60
hotspot/test/compiler/7123108/Test7123108.java Normal file
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@ -0,0 +1,60 @@
/*
* Copyright (c) 2011, 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 7123108
* @summary C1 crashes with assert(if_state != NULL) failed: states do not match up
*
* @run main/othervm -Xcomp Test7123108
*/
public class Test7123108 {
static class Test_Class_0 {
final static byte var_2 = 67;
byte var_3;
}
Object var_25 = "kgfpyhcms";
static long var_27 = 6899666748616086528L;
static float func_1()
{
return 0.0F;
}
private void test()
{
"dlwq".charAt(((short)'x' > var_27 | func_1() <= (((Test_Class_0)var_25).var_3) ? true : true) ? Test_Class_0.var_2 & (short)-1.1173839E38F : 'Y');
}
public static void main(String[] args)
{
Test7123108 t = new Test7123108();
try {
t.test();
} catch (Throwable e) { }
}
}