--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/opto/phase.hpp Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,113 @@
+/*
+ * Copyright 1997-2005 Sun Microsystems, Inc. All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+class Compile;
+
+//------------------------------Phase------------------------------------------
+// Most optimizations are done in Phases. Creating a phase does any long
+// running analysis required, and caches the analysis in internal data
+// structures. Later the analysis is queried using transform() calls to
+// guide transforming the program. When the Phase is deleted, so is any
+// cached analysis info. This basic Phase class mostly contains timing and
+// memory management code.
+class Phase : public StackObj {
+public:
+ enum PhaseNumber {
+ Compiler, // Top-level compiler phase
+ Parser, // Parse bytecodes
+ Remove_Useless, // Remove useless nodes
+ Optimistic, // Optimistic analysis phase
+ GVN, // Pessimistic global value numbering phase
+ Ins_Select, // Instruction selection phase
+ Copy_Elimination, // Copy Elimination
+ Dead_Code_Elimination, // DCE and compress Nodes
+ Conditional_Constant, // Conditional Constant Propagation
+ CFG, // Build a CFG
+ DefUse, // Build Def->Use chains
+ Register_Allocation, // Register allocation, duh
+ LIVE, // Dragon-book LIVE range problem
+ Interference_Graph, // Building the IFG
+ Coalesce, // Coalescing copies
+ Conditional_CProp, // Conditional Constant Propagation
+ Ideal_Loop, // Find idealized trip-counted loops
+ Macro_Expand, // Expand macro nodes
+ Peephole, // Apply peephole optimizations
+ last_phase
+ };
+protected:
+ enum PhaseNumber _pnum; // Phase number (for stat gathering)
+
+#ifndef PRODUCT
+ static int _total_bytes_compiled;
+
+ // accumulated timers
+ static elapsedTimer _t_totalCompilation;
+ static elapsedTimer _t_methodCompilation;
+ static elapsedTimer _t_stubCompilation;
+#endif
+
+// The next timers used for LogCompilation
+ static elapsedTimer _t_parser;
+ static elapsedTimer _t_escapeAnalysis;
+ static elapsedTimer _t_optimizer;
+ static elapsedTimer _t_idealLoop;
+ static elapsedTimer _t_ccp;
+ static elapsedTimer _t_matcher;
+ static elapsedTimer _t_registerAllocation;
+ static elapsedTimer _t_output;
+
+#ifndef PRODUCT
+ static elapsedTimer _t_graphReshaping;
+ static elapsedTimer _t_scheduler;
+ static elapsedTimer _t_removeEmptyBlocks;
+ static elapsedTimer _t_macroExpand;
+ static elapsedTimer _t_peephole;
+ static elapsedTimer _t_codeGeneration;
+ static elapsedTimer _t_registerMethod;
+ static elapsedTimer _t_temporaryTimer1;
+ static elapsedTimer _t_temporaryTimer2;
+
+// Subtimers for _t_optimizer
+ static elapsedTimer _t_iterGVN;
+ static elapsedTimer _t_iterGVN2;
+
+// Subtimers for _t_registerAllocation
+ static elapsedTimer _t_ctorChaitin;
+ static elapsedTimer _t_buildIFGphysical;
+ static elapsedTimer _t_computeLive;
+ static elapsedTimer _t_regAllocSplit;
+ static elapsedTimer _t_postAllocCopyRemoval;
+ static elapsedTimer _t_fixupSpills;
+
+// Subtimers for _t_output
+ static elapsedTimer _t_instrSched;
+ static elapsedTimer _t_buildOopMaps;
+#endif
+public:
+ Compile * C;
+ Phase( PhaseNumber pnum );
+#ifndef PRODUCT
+ static void print_timers();
+#endif
+};