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comparison src/share/vm/ci/ciMethod.cpp @ 6213:8150fa46d2ed

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7178145: Change constMethodOop::_exception_table to optionally inlined u2 table. Summary: Change constMethodOop::_exception_table to optionally inlined u2 table. Reviewed-by: bdelsart, coleenp, kamg
author jiangli
date Tue, 26 Jun 2012 19:08:44 -0400
parents 5eb9169b1a14
children 1d7922586cf6
comparison
equal deleted inserted replaced
6177:06320b1578cb 6213:8150fa46d2ed
1 /* 1 /*
2 * Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 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 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
77 // Easy to compute, so fill them in now. 77 // Easy to compute, so fill them in now.
78 _max_stack = h_m()->max_stack(); 78 _max_stack = h_m()->max_stack();
79 _max_locals = h_m()->max_locals(); 79 _max_locals = h_m()->max_locals();
80 _code_size = h_m()->code_size(); 80 _code_size = h_m()->code_size();
81 _intrinsic_id = h_m()->intrinsic_id(); 81 _intrinsic_id = h_m()->intrinsic_id();
82 _handler_count = h_m()->exception_table()->length() / 4; 82 _handler_count = h_m()->exception_table_length();
83 _uses_monitors = h_m()->access_flags().has_monitor_bytecodes(); 83 _uses_monitors = h_m()->access_flags().has_monitor_bytecodes();
84 _balanced_monitors = !_uses_monitors || h_m()->access_flags().is_monitor_matching(); 84 _balanced_monitors = !_uses_monitors || h_m()->access_flags().is_monitor_matching();
85 _is_c1_compilable = !h_m()->is_not_c1_compilable(); 85 _is_c1_compilable = !h_m()->is_not_c1_compilable();
86 _is_c2_compilable = !h_m()->is_not_c2_compilable(); 86 _is_c2_compilable = !h_m()->is_not_c2_compilable();
87 // Lazy fields, filled in on demand. Require allocation. 87 // Lazy fields, filled in on demand. Require allocation.
196 } 196 }
197 } 197 }
198 } 198 }
199 199
200 // And load the exception table. 200 // And load the exception table.
201 typeArrayOop exc_table = me->exception_table(); 201 ExceptionTable exc_table(me);
202 202
203 // Allocate one extra spot in our list of exceptions. This 203 // Allocate one extra spot in our list of exceptions. This
204 // last entry will be used to represent the possibility that 204 // last entry will be used to represent the possibility that
205 // an exception escapes the method. See ciExceptionHandlerStream 205 // an exception escapes the method. See ciExceptionHandlerStream
206 // for details. 206 // for details.
207 _exception_handlers = 207 _exception_handlers =
208 (ciExceptionHandler**)arena->Amalloc(sizeof(ciExceptionHandler*) 208 (ciExceptionHandler**)arena->Amalloc(sizeof(ciExceptionHandler*)
209 * (_handler_count + 1)); 209 * (_handler_count + 1));
210 if (_handler_count > 0) { 210 if (_handler_count > 0) {
211 for (int i=0; i<_handler_count; i++) { 211 for (int i=0; i<_handler_count; i++) {
212 int base = i*4;
213 _exception_handlers[i] = new (arena) ciExceptionHandler( 212 _exception_handlers[i] = new (arena) ciExceptionHandler(
214 holder(), 213 holder(),
215 /* start */ exc_table->int_at(base), 214 /* start */ exc_table.start_pc(i),
216 /* limit */ exc_table->int_at(base+1), 215 /* limit */ exc_table.end_pc(i),
217 /* goto pc */ exc_table->int_at(base+2), 216 /* goto pc */ exc_table.handler_pc(i),
218 /* cp index */ exc_table->int_at(base+3)); 217 /* cp index */ exc_table.catch_type_index(i));
219 } 218 }
220 } 219 }
221 220
222 // Put an entry at the end of our list to represent the possibility 221 // Put an entry at the end of our list to represent the possibility
223 // of exceptional exit. 222 // of exceptional exit.