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rev 7082 : 8068881: SIGBUS in C2 compiled method weblogic.wsee.jaxws.framework.jaxrpc.EnvironmentFactory$SimulatedWsdlDefinitions.<init>
Summary: Use MachMerge to hook together defs of the same multidef value in a block
Reviewed-by: kvn, vlivanov
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--- old/hotspot/src/share/vm/opto/phase.hpp
+++ new/hotspot/src/share/vm/opto/phase.hpp
1 1 /*
2 2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
3 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 4 *
5 5 * This code is free software; you can redistribute it and/or modify it
6 6 * under the terms of the GNU General Public License version 2 only, as
7 7 * published by the Free Software Foundation.
8 8 *
9 9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 12 * version 2 for more details (a copy is included in the LICENSE file that
13 13 * accompanied this code).
14 14 *
15 15 * You should have received a copy of the GNU General Public License version
16 16 * 2 along with this work; if not, write to the Free Software Foundation,
17 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 18 *
19 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 20 * or visit www.oracle.com if you need additional information or have any
21 21 * questions.
22 22 *
23 23 */
24 24
25 25 #ifndef SHARE_VM_OPTO_PHASE_HPP
26 26 #define SHARE_VM_OPTO_PHASE_HPP
27 27
28 28 #include "libadt/port.hpp"
29 29 #include "runtime/timer.hpp"
30 30
31 31 class Compile;
32 32
33 33 //------------------------------Phase------------------------------------------
34 34 // Most optimizations are done in Phases. Creating a phase does any long
35 35 // running analysis required, and caches the analysis in internal data
36 36 // structures. Later the analysis is queried using transform() calls to
37 37 // guide transforming the program. When the Phase is deleted, so is any
38 38 // cached analysis info. This basic Phase class mostly contains timing and
39 39 // memory management code.
40 40 class Phase : public StackObj {
41 41 public:
42 42 enum PhaseNumber {
43 43 Compiler, // Top-level compiler phase
44 44 Parser, // Parse bytecodes
45 45 Remove_Useless, // Remove useless nodes
46 46 Optimistic, // Optimistic analysis phase
47 47 GVN, // Pessimistic global value numbering phase
48 48 Ins_Select, // Instruction selection phase
49 49 CFG, // Build a CFG
50 50 BlockLayout, // Linear ordering of blocks
51 51 Register_Allocation, // Register allocation, duh
52 52 LIVE, // Dragon-book LIVE range problem
53 53 StringOpts, // StringBuilder related optimizations
54 54 Interference_Graph, // Building the IFG
55 55 Coalesce, // Coalescing copies
56 56 Ideal_Loop, // Find idealized trip-counted loops
57 57 Macro_Expand, // Expand macro nodes
58 58 Peephole, // Apply peephole optimizations
59 59 last_phase
60 60 };
61 61 protected:
62 62 enum PhaseNumber _pnum; // Phase number (for stat gathering)
63 63
64 64 #ifndef PRODUCT
65 65 static int _total_bytes_compiled;
66 66
67 67 // accumulated timers
68 68 static elapsedTimer _t_totalCompilation;
69 69 static elapsedTimer _t_methodCompilation;
70 70 static elapsedTimer _t_stubCompilation;
71 71 #endif
72 72
73 73 // The next timers used for LogCompilation
74 74 static elapsedTimer _t_parser;
75 75 static elapsedTimer _t_optimizer;
76 76 public:
77 77 // ConnectionGraph can't be Phase since it is used after EA done.
78 78 static elapsedTimer _t_escapeAnalysis;
79 79 static elapsedTimer _t_connectionGraph;
80 80 protected:
81 81 static elapsedTimer _t_idealLoop;
82 82 static elapsedTimer _t_ccp;
83 83 static elapsedTimer _t_matcher;
84 84 static elapsedTimer _t_registerAllocation;
85 85 static elapsedTimer _t_output;
86 86
87 87 #ifndef PRODUCT
88 88 static elapsedTimer _t_graphReshaping;
89 89 static elapsedTimer _t_scheduler;
90 90 static elapsedTimer _t_blockOrdering;
91 91 static elapsedTimer _t_macroEliminate;
92 92 static elapsedTimer _t_macroExpand;
93 93 static elapsedTimer _t_peephole;
94 94 static elapsedTimer _t_postalloc_expand;
95 95 static elapsedTimer _t_codeGeneration;
96 96 static elapsedTimer _t_registerMethod;
97 97 static elapsedTimer _t_temporaryTimer1;
98 98 static elapsedTimer _t_temporaryTimer2;
99 99 static elapsedTimer _t_idealLoopVerify;
100 100
101 101 // Subtimers for _t_optimizer
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102 102 static elapsedTimer _t_iterGVN;
103 103 static elapsedTimer _t_iterGVN2;
104 104 static elapsedTimer _t_incrInline;
105 105
106 106 // Subtimers for _t_registerAllocation
107 107 static elapsedTimer _t_ctorChaitin;
108 108 static elapsedTimer _t_buildIFGphysical;
109 109 static elapsedTimer _t_computeLive;
110 110 static elapsedTimer _t_regAllocSplit;
111 111 static elapsedTimer _t_postAllocCopyRemoval;
112 + static elapsedTimer _t_mergeMultidefs;
112 113 static elapsedTimer _t_fixupSpills;
113 114
114 115 // Subtimers for _t_output
115 116 static elapsedTimer _t_instrSched;
116 117 static elapsedTimer _t_buildOopMaps;
117 118 #endif
118 119 public:
119 120 Compile * C;
120 121 Phase( PhaseNumber pnum );
121 122 #ifndef PRODUCT
122 123 static void print_timers();
123 124 #endif
124 125 };
125 126
126 127 #endif // SHARE_VM_OPTO_PHASE_HPP
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