stan/jdk-24
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

8217359: C2 compiler triggers SIGSEGV after transformation in ConvI2LNode::Ideal

Browse Source 
Reviewed-by: thartmann
This commit is contained in:
Tao Ji 2019-01-21 13:31:42 +08:00 committed by Fei Yang
parent 05a8750ec7
commit cf554816d1
2 changed files with 79 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
src/hotspot/share/opto/convertnode.cpp
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2014, 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
@ -393,7 +393,11 @@ Node *ConvI2LNode::Ideal(PhaseGVN *phase, bool can_reshape) {
assert(rxlo == (int)rxlo && rxhi == (int)rxhi, "x should not overflow");
assert(rylo == (int)rylo && ryhi == (int)ryhi, "y should not overflow");
Node* cx = phase->C->constrained_convI2L(phase, x, TypeInt::make(rxlo, rxhi, widen), NULL);
Node *hook = new Node(1);
hook->init_req(0, cx); // Add a use to cx to prevent him from dying
Node* cy = phase->C->constrained_convI2L(phase, y, TypeInt::make(rylo, ryhi, widen), NULL);
hook->del_req(0); // Just yank bogus edge
hook->destruct();
switch (op) {
case Op_AddI: return new AddLNode(cx, cy);
case Op_SubI: return new SubLNode(cx, cy);

74
test/hotspot/jtreg/compiler/c2/Test8217359.java Normal file
View File

@ -0,0 +1,74 @@
/*
* Copyright (c) 2019, Huawei Technologies Co. Ltd. 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 8217359
* @summary C2 compiler triggers SIGSEGV after transformation in ConvI2LNode::Ideal
*
* @run main/othervm -XX:-TieredCompilation
* -XX:CompileCommand=compileonly,compiler.c2.Test8217359::test
* compiler.c2.Test8217359
*/
package compiler.c2;
public class Test8217359 {
public static int ival = 0;
public static long lsum = 0;
public static long lval = 0;
public static void test() {
short s = -25632;
float f = 0.512F, f1 = 2.556F;
int i6 = 32547, i7 = 9, i8 = -9, i9 = 36, i10 = -223;
for (i6 = 4; i6 < 182; i6++) {
i8 = 1;
while (++i8 < 17) {
f1 = 1;
do {
i7 += (182 + (f1 * f1));
} while (++f1 < 1);
Test8217359.ival += (i8 | Test8217359.ival);
}
}
for (i9 = 9; i9 < 100; ++i9) {
i10 -= i6;
i10 >>= s;
i7 += (((i9 * i10) + i6) - Test8217359.lval);
}
lsum += i6 + i7 + i8;
}
public static void main(String[] args) {
for (int i = 0; i < 16000; i++) {
test();
}
}
}