Mercurial > hg > graal-compiler
annotate test/compiler/7009359/Test7009359.java @ 11825:463f51256c86
AMD64HotSpot: emit jump to IC miss handler directly instead of emitting it inside verfied_entry
for empty methods we emitted something like this if a inline cache is needed:
prefix:
00: < IC check >
...
0b: jne <ic_miss_call>
11: nop
...
verified_entry:
20: ret
ic_miss_call:
21: jmp <entry of runtime function>
when a method is deoptimized, HotSpot patches the verified_entry (0x20) with a
jump to a stub that handles call-sites that has been made non-entrant. since this jump
is 5 bytes long, it will overwrite ic_miss_call and blow up every caller that
calls this method via the unverified entry (prefix).
the fix is to emit the jump to the runtime function inside the unverfied entry:
prefix:
00: < IC check >
...
0b: je <verified_entry>
11: jeq <entry of runtime function>
16: nop
...
verified_entry:
20: ret
author | Bernhard Urban <bernhard.urban@jku.at> |
---|---|
date | Mon, 30 Sep 2013 09:32:18 +0200 |
parents | c703f9c4b025 |
children |
rev | line source |
---|---|
2090
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
1 /* |
8049
c703f9c4b025
8002169: TEST_BUG: compiler/7009359/Test7009359.java sometimes times out
kmo
parents:
2090
diff
changeset
|
2 * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved. |
2090
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
4 * |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
5 * This code is free software; you can redistribute it and/or modify it |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
6 * under the terms of the GNU General Public License version 2 only, as |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
7 * published by the Free Software Foundation. |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
8 * |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
9 * This code is distributed in the hope that it will be useful, but WITHOUT |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
12 * version 2 for more details (a copy is included in the LICENSE file that |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
13 * accompanied this code). |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
14 * |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
15 * You should have received a copy of the GNU General Public License version |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
16 * 2 along with this work; if not, write to the Free Software Foundation, |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
18 * |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
21 * questions. |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
22 * |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
23 */ |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
24 |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
25 /** |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
26 * @test |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
27 * @bug 7009359 |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
28 * @summary HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
29 * |
8049
c703f9c4b025
8002169: TEST_BUG: compiler/7009359/Test7009359.java sometimes times out
kmo
parents:
2090
diff
changeset
|
30 * @run main/othervm -Xbatch -XX:+IgnoreUnrecognizedVMOptions -XX:+OptimizeStringConcat -XX:CompileCommand=dontinline,Test7009359,stringmakerBUG Test7009359 |
2090
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
31 * |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
32 */ |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
33 |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
34 public class Test7009359 { |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
35 public static void main (String[] args) { |
8049
c703f9c4b025
8002169: TEST_BUG: compiler/7009359/Test7009359.java sometimes times out
kmo
parents:
2090
diff
changeset
|
36 for(int i = 0; i < 100000; i++) { |
2090
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
37 if(!stringmakerBUG(null).equals("NPE")) { |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
38 System.out.println("StringBuffer(null) does not throw NPE"); |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
39 System.exit(97); |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
40 } |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
41 } |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
42 } |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
43 |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
44 public static String stringmakerBUG(String str) { |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
45 try { |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
46 return new StringBuffer(str).toString(); |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
47 } catch (NullPointerException e) { |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
48 return "NPE"; |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
49 } |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
50 } |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
51 } |
2ddb2fab82cb
7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
kvn
parents:
diff
changeset
|
52 |