Mercurial > hg > truffle
annotate src/cpu/x86/vm/c2_globals_x86.hpp @ 15388:769fc3629f59
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 | 4ca6dc0799b6 |
children | 89152779163c |
rev | line source |
---|---|
0 | 1 /* |
14909 | 2 * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1365
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1365
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:
1365
diff
changeset
|
21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef CPU_X86_VM_C2_GLOBALS_X86_HPP |
26 #define CPU_X86_VM_C2_GLOBALS_X86_HPP | |
27 | |
28 #include "utilities/globalDefinitions.hpp" | |
29 #include "utilities/macros.hpp" | |
30 | |
0 | 31 // Sets the default values for platform dependent flags used by the server compiler. |
32 // (see c2_globals.hpp). Alpha-sorted. | |
33 define_pd_global(bool, BackgroundCompilation, true); | |
34 define_pd_global(bool, UseTLAB, true); | |
35 define_pd_global(bool, ResizeTLAB, true); | |
36 define_pd_global(bool, CICompileOSR, true); | |
37 define_pd_global(bool, InlineIntrinsics, true); | |
38 define_pd_global(bool, PreferInterpreterNativeStubs, false); | |
39 define_pd_global(bool, ProfileTraps, true); | |
40 define_pd_global(bool, UseOnStackReplacement, true); | |
4611 | 41 define_pd_global(intx, TypeProfileWidth, 2 ); |
9760
c76b43ed5089
Added infrastructure for recording invoked methods in the profiling information.
Christian Haeubl <haeubl@ssw.jku.at>
parents:
8124
diff
changeset
|
42 define_pd_global(intx, MethodProfileWidth, 0 ); |
0 | 43 #ifdef CC_INTERP |
44 define_pd_global(bool, ProfileInterpreter, false); | |
45 #else | |
46 define_pd_global(bool, ProfileInterpreter, true); | |
47 #endif // CC_INTERP | |
11962 | 48 define_pd_global(bool, TieredCompilation, trueInTiered); |
0 | 49 define_pd_global(intx, CompileThreshold, 10000); |
50 define_pd_global(intx, BackEdgeThreshold, 100000); | |
51 | |
52 define_pd_global(intx, OnStackReplacePercentage, 140); | |
53 define_pd_global(intx, ConditionalMoveLimit, 3); | |
54 define_pd_global(intx, FLOATPRESSURE, 6); | |
55 define_pd_global(intx, FreqInlineSize, 325); | |
12192
34bd5e86aadb
8010941: MinJumpTableSize is set to 18, investigate if that's still optimal
adlertz
parents:
11962
diff
changeset
|
56 define_pd_global(intx, MinJumpTableSize, 10); |
0 | 57 #ifdef AMD64 |
58 define_pd_global(intx, INTPRESSURE, 13); | |
59 define_pd_global(intx, InteriorEntryAlignment, 16); | |
60 define_pd_global(intx, NewSizeThreadIncrease, ScaleForWordSize(4*K)); | |
61 define_pd_global(intx, LoopUnrollLimit, 60); | |
62 // InitialCodeCacheSize derived from specjbb2000 run. | |
63 define_pd_global(intx, InitialCodeCacheSize, 2496*K); // Integral multiple of CodeCacheExpansionSize | |
64 define_pd_global(intx, CodeCacheExpansionSize, 64*K); | |
65 | |
66 // Ergonomics related flags | |
1064 | 67 define_pd_global(uint64_t,MaxRAM, 128ULL*G); |
0 | 68 #else |
69 define_pd_global(intx, INTPRESSURE, 6); | |
70 define_pd_global(intx, InteriorEntryAlignment, 4); | |
71 define_pd_global(intx, NewSizeThreadIncrease, 4*K); | |
1064 | 72 define_pd_global(intx, LoopUnrollLimit, 50); // Design center runs on 1.3.1 |
0 | 73 // InitialCodeCacheSize derived from specjbb2000 run. |
74 define_pd_global(intx, InitialCodeCacheSize, 2304*K); // Integral multiple of CodeCacheExpansionSize | |
75 define_pd_global(intx, CodeCacheExpansionSize, 32*K); | |
76 | |
77 // Ergonomics related flags | |
1064 | 78 define_pd_global(uint64_t,MaxRAM, 4ULL*G); |
0 | 79 #endif // AMD64 |
80 define_pd_global(intx, RegisterCostAreaRatio, 16000); | |
81 | |
82 // Peephole and CISC spilling both break the graph, and so makes the | |
83 // scheduler sick. | |
84 define_pd_global(bool, OptoPeephole, true); | |
85 define_pd_global(bool, UseCISCSpill, true); | |
86 define_pd_global(bool, OptoScheduling, false); | |
87 define_pd_global(bool, OptoBundling, false); | |
88 | |
10475
3489047ffea2
Restructure the handling of HotSpotInstalledCode and their link to nmethods.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
9760
diff
changeset
|
89 #ifdef GRAAL |
3489047ffea2
Restructure the handling of HotSpotInstalledCode and their link to nmethods.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
9760
diff
changeset
|
90 define_pd_global(intx, ReservedCodeCacheSize, 64*M); |
3489047ffea2
Restructure the handling of HotSpotInstalledCode and their link to nmethods.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
9760
diff
changeset
|
91 #else |
0 | 92 define_pd_global(intx, ReservedCodeCacheSize, 48*M); |
10475
3489047ffea2
Restructure the handling of HotSpotInstalledCode and their link to nmethods.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
9760
diff
changeset
|
93 #endif |
11079
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
7992
diff
changeset
|
94 define_pd_global(uintx, CodeCacheMinBlockLength, 4); |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
7992
diff
changeset
|
95 define_pd_global(uintx, CodeCacheMinimumUseSpace, 400*K); |
0 | 96 |
97 // Heap related flags | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
4868
diff
changeset
|
98 define_pd_global(uintx,MetaspaceSize, ScaleForWordSize(16*M)); |
0 | 99 |
100 // Ergonomics related flags | |
101 define_pd_global(bool, NeverActAsServerClassMachine, false); | |
1972 | 102 |
103 #endif // CPU_X86_VM_C2_GLOBALS_X86_HPP |