1 /*
2 * Copyright (c) 2000, 2008, 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
26 class ciTypeFlow : public ResourceObj {
27 private:
28 ciEnv* _env;
29 ciMethod* _method;
30 ciMethodBlocks* _methodBlocks;
31 int _osr_bci;
32
33 // information cached from the method:
34 int _max_locals;
35 int _max_stack;
36 int _code_size;
37 bool _has_irreducible_entry;
38
39 const char* _failure_reason;
40
41 public:
42 class StateVector;
43 class Loop;
44 class Block;
907 // Perform the depth first type flow analysis. Helper for flow_types.
908 void df_flow_types(Block* start,
909 bool do_flow,
910 StateVector* temp_vector,
911 JsrSet* temp_set);
912
913 // Incrementally build loop tree.
914 void build_loop_tree(Block* blk);
915
916 // Create the block map, which indexes blocks in pre_order.
917 void map_blocks();
918
919 public:
920 // Perform type inference flow analysis.
921 void do_flow();
922
923 void print_on(outputStream* st) const PRODUCT_RETURN;
924
925 void rpo_print_on(outputStream* st) const PRODUCT_RETURN;
926 };
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1 /*
2 * Copyright (c) 2000, 2010, 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_CI_CITYPEFLOW_HPP
26 #define SHARE_VM_CI_CITYPEFLOW_HPP
27
28 #ifdef COMPILER2
29 #include "ci/ciEnv.hpp"
30 #include "ci/ciKlass.hpp"
31 #include "ci/ciMethodBlocks.hpp"
32 #endif
33 #ifdef SHARK
34 #include "ci/ciEnv.hpp"
35 #include "ci/ciKlass.hpp"
36 #include "ci/ciMethodBlocks.hpp"
37 #endif
38
39
40 class ciTypeFlow : public ResourceObj {
41 private:
42 ciEnv* _env;
43 ciMethod* _method;
44 ciMethodBlocks* _methodBlocks;
45 int _osr_bci;
46
47 // information cached from the method:
48 int _max_locals;
49 int _max_stack;
50 int _code_size;
51 bool _has_irreducible_entry;
52
53 const char* _failure_reason;
54
55 public:
56 class StateVector;
57 class Loop;
58 class Block;
921 // Perform the depth first type flow analysis. Helper for flow_types.
922 void df_flow_types(Block* start,
923 bool do_flow,
924 StateVector* temp_vector,
925 JsrSet* temp_set);
926
927 // Incrementally build loop tree.
928 void build_loop_tree(Block* blk);
929
930 // Create the block map, which indexes blocks in pre_order.
931 void map_blocks();
932
933 public:
934 // Perform type inference flow analysis.
935 void do_flow();
936
937 void print_on(outputStream* st) const PRODUCT_RETURN;
938
939 void rpo_print_on(outputStream* st) const PRODUCT_RETURN;
940 };
941
942 #endif // SHARE_VM_CI_CITYPEFLOW_HPP
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