Mercurial > hg > truffle

annotate src/share/vm/ci/ciCallSite.hpp @ 20543:e7d0505c8a30

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
8059758: Footprint regressions with JDK-8038423 Summary: Changes in JDK-8038423 always initialize (zero out) virtual memory used for auxiliary data structures. This causes a footprint regression for G1 in startup benchmarks. This is because they do not touch that memory at all, so the operating system does not actually commit these pages. The fix is to, if the initialization value of the data structures matches the default value of just committed memory (=0), do not do anything. Reviewed-by: jwilhelm, brutisso
author tschatzl
date Fri, 10 Oct 2014 15:51:58 +0200
parents fdb992d83a87
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1138
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents:
diff changeset
1 /*
2357
8033953d67ff 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 1972
diff changeset
2 * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved.
1138
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents:
diff changeset
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents:
diff changeset
4 *
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents:
diff changeset
5 * This code is free software; you can redistribute it and/or modify it
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents:
diff changeset
6 * under the terms of the GNU General Public License version 2 only, as
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents:
diff changeset
7 * published by the Free Software Foundation.
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents:
diff changeset
8 *
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents:
diff changeset
9 * This code is distributed in the hope that it will be useful, but WITHOUT
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents:
diff changeset
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents:
diff changeset
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents:
diff changeset
12 * version 2 for more details (a copy is included in the LICENSE file that
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents:
diff changeset
13 * accompanied this code).
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents:
diff changeset
14 *
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents:
diff changeset
15 * You should have received a copy of the GNU General Public License version
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents:
diff changeset
16 * 2 along with this work; if not, write to the Free Software Foundation,
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents:
diff changeset
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents:
diff changeset
18 *
1552
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 1138
diff changeset
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 1138
diff changeset
20 * or visit www.oracle.com if you need additional information or have any
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 1138
diff changeset
21 * questions.
1138
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents:
diff changeset
22 *
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents:
diff changeset
23 */
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents:
diff changeset
24
1972
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
25 #ifndef SHARE_VM_CI_CICALLSITE_HPP
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
26 #define SHARE_VM_CI_CICALLSITE_HPP
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
27
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
28 #include "ci/ciInstance.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
29
1138
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents:
diff changeset
30 // ciCallSite
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents:
diff changeset
31 //
2357
8033953d67ff 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 1972
diff changeset
32 // The class represents a java.lang.invoke.CallSite object.
1138
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents:
diff changeset
33 class ciCallSite : public ciInstance {
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents:
diff changeset
34 public:
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents:
diff changeset
35 ciCallSite(instanceHandle h_i) : ciInstance(h_i) {}
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents:
diff changeset
36
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents:
diff changeset
37 // What kind of ciObject is this?
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents:
diff changeset
38 bool is_call_site() const { return true; }
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents:
diff changeset
39
3852
fdb992d83a87 7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents: 2357
diff changeset
40 bool is_constant_call_site();
fdb992d83a87 7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents: 2357
diff changeset
41 bool is_mutable_call_site();
fdb992d83a87 7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents: 2357
diff changeset
42 bool is_volatile_call_site();
fdb992d83a87 7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents: 2357
diff changeset
43
1138
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents:
diff changeset
44 // Return the target MethodHandle of this CallSite.
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents:
diff changeset
45 ciMethodHandle* get_target() const;
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents:
diff changeset
46
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents:
diff changeset
47 void print();
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents:
diff changeset
48 };
1972
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
49
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
50 #endif // SHARE_VM_CI_CICALLSITE_HPP