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 class MemoryBuffer;
26
27 class GraphBuilder VALUE_OBJ_CLASS_SPEC {
28 private:
29 // Per-scope data. These are pushed and popped as we descend into
30 // inlined methods. Currently in order to generate good code in the
31 // inliner we have to attempt to inline methods directly into the
32 // basic block we are parsing; this adds complexity.
33 class ScopeData: public CompilationResourceObj {
34 private:
35 ScopeData* _parent;
36 // bci-to-block mapping
37 BlockList* _bci2block;
38 // Scope
39 IRScope* _scope;
40 // Whether this scope or any parent scope has exception handlers
41 bool _has_handler;
42 // The bytecodes
43 ciBytecodeStream* _stream;
44
361 public:
362 NOT_PRODUCT(void print_stats();)
363
364 // initialization
365 static void initialize();
366
367 // public
368 static bool can_trap(ciMethod* method, Bytecodes::Code code) {
369 assert(0 <= code && code < Bytecodes::number_of_java_codes, "illegal bytecode");
370 if (_can_trap[code]) return true;
371 // special handling for finalizer registration
372 return code == Bytecodes::_return && method->intrinsic_id() == vmIntrinsics::_Object_init;
373 }
374
375 // creation
376 GraphBuilder(Compilation* compilation, IRScope* scope);
377 static void sort_top_into_worklist(BlockList* worklist, BlockBegin* top);
378
379 BlockBegin* start() const { return _start; }
380 };
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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_C1_C1_GRAPHBUILDER_HPP
26 #define SHARE_VM_C1_C1_GRAPHBUILDER_HPP
27
28 #include "c1/c1_IR.hpp"
29 #include "c1/c1_Instruction.hpp"
30 #include "c1/c1_ValueMap.hpp"
31 #include "c1/c1_ValueStack.hpp"
32 #include "ci/ciMethodData.hpp"
33 #include "ci/ciStreams.hpp"
34
35 class MemoryBuffer;
36
37 class GraphBuilder VALUE_OBJ_CLASS_SPEC {
38 private:
39 // Per-scope data. These are pushed and popped as we descend into
40 // inlined methods. Currently in order to generate good code in the
41 // inliner we have to attempt to inline methods directly into the
42 // basic block we are parsing; this adds complexity.
43 class ScopeData: public CompilationResourceObj {
44 private:
45 ScopeData* _parent;
46 // bci-to-block mapping
47 BlockList* _bci2block;
48 // Scope
49 IRScope* _scope;
50 // Whether this scope or any parent scope has exception handlers
51 bool _has_handler;
52 // The bytecodes
53 ciBytecodeStream* _stream;
54
371 public:
372 NOT_PRODUCT(void print_stats();)
373
374 // initialization
375 static void initialize();
376
377 // public
378 static bool can_trap(ciMethod* method, Bytecodes::Code code) {
379 assert(0 <= code && code < Bytecodes::number_of_java_codes, "illegal bytecode");
380 if (_can_trap[code]) return true;
381 // special handling for finalizer registration
382 return code == Bytecodes::_return && method->intrinsic_id() == vmIntrinsics::_Object_init;
383 }
384
385 // creation
386 GraphBuilder(Compilation* compilation, IRScope* scope);
387 static void sort_top_into_worklist(BlockList* worklist, BlockBegin* top);
388
389 BlockBegin* start() const { return _start; }
390 };
391
392 #endif // SHARE_VM_C1_C1_GRAPHBUILDER_HPP
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