1 /* 2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. 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 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef SHARE_VM_OPTO_PHASE_HPP 26 #define SHARE_VM_OPTO_PHASE_HPP 27 28 #include "runtime/timer.hpp" 29 30 class Compile; 31 32 //------------------------------Phase------------------------------------------ 33 // Most optimizations are done in Phases. Creating a phase does any long 34 // running analysis required, and caches the analysis in internal data 35 // structures. Later the analysis is queried using transform() calls to 36 // guide transforming the program. When the Phase is deleted, so is any 37 // cached analysis info. This basic Phase class mostly contains timing and 38 // memory management code. 39 class Phase : public StackObj { 40 public: 41 enum PhaseNumber { 42 Compiler, // Top-level compiler phase 43 Parser, // Parse bytecodes 44 Remove_Useless, // Remove useless nodes 45 Optimistic, // Optimistic analysis phase 46 GVN, // Pessimistic global value numbering phase 47 Ins_Select, // Instruction selection phase 48 CFG, // Build a CFG 49 BlockLayout, // Linear ordering of blocks 50 Register_Allocation, // Register allocation, duh 51 LIVE, // Dragon-book LIVE range problem 52 StringOpts, // StringBuilder related optimizations 53 Interference_Graph, // Building the IFG 54 Coalesce, // Coalescing copies 55 Ideal_Loop, // Find idealized trip-counted loops 56 Macro_Expand, // Expand macro nodes 57 Peephole, // Apply peephole optimizations 58 last_phase 59 }; 60 protected: 61 enum PhaseNumber _pnum; // Phase number (for stat gathering) 62 63 #ifndef PRODUCT 64 static int _total_bytes_compiled; 65 66 // accumulated timers 67 static elapsedTimer _t_totalCompilation; 68 static elapsedTimer _t_methodCompilation; 69 static elapsedTimer _t_stubCompilation; 70 #endif 71 72 // The next timers used for LogCompilation 73 static elapsedTimer _t_parser; 74 static elapsedTimer _t_optimizer; 75 public: 76 // ConnectionGraph can't be Phase since it is used after EA done. 77 static elapsedTimer _t_escapeAnalysis; 78 static elapsedTimer _t_connectionGraph; 79 protected: 80 static elapsedTimer _t_idealLoop; 81 static elapsedTimer _t_ccp; 82 static elapsedTimer _t_matcher; 83 static elapsedTimer _t_registerAllocation; 84 static elapsedTimer _t_output; 85 86 #ifndef PRODUCT 87 static elapsedTimer _t_graphReshaping; 88 static elapsedTimer _t_scheduler; 89 static elapsedTimer _t_blockOrdering; 90 static elapsedTimer _t_macroEliminate; 91 static elapsedTimer _t_macroExpand; 92 static elapsedTimer _t_peephole; 93 static elapsedTimer _t_postalloc_expand; 94 static elapsedTimer _t_codeGeneration; 95 static elapsedTimer _t_registerMethod; 96 static elapsedTimer _t_temporaryTimer1; 97 static elapsedTimer _t_temporaryTimer2; 98 static elapsedTimer _t_idealLoopVerify; 99 100 // Subtimers for _t_optimizer 101 static elapsedTimer _t_iterGVN; 102 static elapsedTimer _t_iterGVN2; 103 static elapsedTimer _t_incrInline; 104 105 // Subtimers for _t_registerAllocation 106 static elapsedTimer _t_ctorChaitin; 107 static elapsedTimer _t_buildIFGphysical; 108 static elapsedTimer _t_computeLive; 109 static elapsedTimer _t_regAllocSplit; 110 static elapsedTimer _t_postAllocCopyRemoval; 111 static elapsedTimer _t_fixupSpills; 112 113 // Subtimers for _t_output 114 static elapsedTimer _t_instrSched; 115 static elapsedTimer _t_buildOopMaps; 116 #endif 117 public: 118 Compile * C; 119 Phase( PhaseNumber pnum ); 120 #ifndef PRODUCT 121 static void print_timers(); 122 #endif 123 }; 124 125 #endif // SHARE_VM_OPTO_PHASE_HPP