Mercurial > hg > truffle

annotate src/cpu/x86/vm/stubRoutines_x86_64.cpp @ 15388:769fc3629f59

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Add phase FlowSensitiveReductionPhase. It is possible to remove GuardingPiNodes, CheckCastNodes, and FixedGuards during HighTier under certain conditions (control-flow sensitive conditions). The phase added in this commit (FlowSensitiveReductionPhase) does that, and in addition replaces usages with "downcasting" PiNodes when possible thus resulting in more precise object stamps (e.g., non-null). Finally, usages of floating, side-effects free, expressions are also simplified (as per control-flow sensitive conditions). The newly added phase runs only during HighTier and can be deactivated using Graal option FlowSensitiveReduction (it is active by default).
author Miguel Garcia <miguel.m.garcia@oracle.com>
date Fri, 25 Apr 2014 16:50:52 +0200
parents 0f57ccdb9084
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1 /*
11080
b800986664f4 7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents: 7180
diff changeset
2 * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
a61af66fc99e Initial load
duke
parents:
diff changeset
4 *
a61af66fc99e Initial load
duke
parents:
diff changeset
5 * This code is free software; you can redistribute it and/or modify it
a61af66fc99e Initial load
duke
parents:
diff changeset
6 * under the terms of the GNU General Public License version 2 only, as
a61af66fc99e Initial load
duke
parents:
diff changeset
7 * published by the Free Software Foundation.
a61af66fc99e Initial load
duke
parents:
diff changeset
8 *
a61af66fc99e Initial load
duke
parents:
diff changeset
9 * This code is distributed in the hope that it will be useful, but WITHOUT
a61af66fc99e Initial load
duke
parents:
diff changeset
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
a61af66fc99e Initial load
duke
parents:
diff changeset
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
a61af66fc99e Initial load
duke
parents:
diff changeset
12 * version 2 for more details (a copy is included in the LICENSE file that
a61af66fc99e Initial load
duke
parents:
diff changeset
13 * accompanied this code).
a61af66fc99e Initial load
duke
parents:
diff changeset
14 *
a61af66fc99e Initial load
duke
parents:
diff changeset
15 * You should have received a copy of the GNU General Public License version
a61af66fc99e Initial load
duke
parents:
diff changeset
16 * 2 along with this work; if not, write to the Free Software Foundation,
a61af66fc99e Initial load
duke
parents:
diff changeset
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
a61af66fc99e Initial load
duke
parents:
diff changeset
18 *
1552
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 337
diff changeset
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 337
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: 337
diff changeset
21 * questions.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
22 *
a61af66fc99e Initial load
duke
parents:
diff changeset
23 */
a61af66fc99e Initial load
duke
parents:
diff changeset
24
1972
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
25 #include "precompiled.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
26 #include "runtime/deoptimization.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
27 #include "runtime/frame.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
28 #include "runtime/stubRoutines.hpp"
7180
f34d701e952e 8003935: Simplify the needed includes for using Thread::current()
stefank
parents: 6894
diff changeset
29 #include "runtime/thread.inline.hpp"
0
a61af66fc99e Initial load
duke
parents:
diff changeset
30
a61af66fc99e Initial load
duke
parents:
diff changeset
31 // Implementation of the platform-specific part of StubRoutines - for
a61af66fc99e Initial load
duke
parents:
diff changeset
32 // a description of how to extend it, see the stubRoutines.hpp file.
a61af66fc99e Initial load
duke
parents:
diff changeset
33
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
34 address StubRoutines::x86::_get_previous_fp_entry = NULL;
5903
da4be62fb889 7147740: add assertions to check stack alignment on VM entry from generated code (x64)
roland
parents: 3960
diff changeset
35 address StubRoutines::x86::_get_previous_sp_entry = NULL;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
36
304
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
37 address StubRoutines::x86::_f2i_fixup = NULL;
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
38 address StubRoutines::x86::_f2l_fixup = NULL;
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
39 address StubRoutines::x86::_d2i_fixup = NULL;
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
40 address StubRoutines::x86::_d2l_fixup = NULL;
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
41 address StubRoutines::x86::_float_sign_mask = NULL;
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
42 address StubRoutines::x86::_float_sign_flip = NULL;
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
43 address StubRoutines::x86::_double_sign_mask = NULL;
dc7f315e41f7 5108146: Merge i486 and amd64 cpu directories
never
parents: 0
diff changeset
44 address StubRoutines::x86::_double_sign_flip = NULL;