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 #include "incls/_precompiled.incl"
  26 #include "incls/_ciTypeFlow.cpp.incl"













  27 
  28 // ciTypeFlow::JsrSet
  29 //
  30 // A JsrSet represents some set of JsrRecords.  This class
  31 // is used to record a set of all jsr routines which we permit
  32 // execution to return (ret) from.
  33 //
  34 // During abstract interpretation, JsrSets are used to determine
  35 // whether two paths which reach a given block are unique, and
  36 // should be cloned apart, or are compatible, and should merge
  37 // together.
  38 
  39 // ------------------------------------------------------------------
  40 // ciTypeFlow::JsrSet::JsrSet
  41 ciTypeFlow::JsrSet::JsrSet(Arena* arena, int default_len) {
  42   if (arena != NULL) {
  43     // Allocate growable array in Arena.
  44     _set = new (arena) GrowableArray<JsrRecord*>(arena, default_len, 0, NULL);
  45   } else {
  46     // Allocate growable array in current ResourceArea.

   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 #include "precompiled.hpp"
  26 #include "ci/ciConstant.hpp"
  27 #include "ci/ciField.hpp"
  28 #include "ci/ciMethod.hpp"
  29 #include "ci/ciMethodData.hpp"
  30 #include "ci/ciObjArrayKlass.hpp"
  31 #include "ci/ciStreams.hpp"
  32 #include "ci/ciTypeArrayKlass.hpp"
  33 #include "ci/ciTypeFlow.hpp"
  34 #include "compiler/compileLog.hpp"
  35 #include "interpreter/bytecode.hpp"
  36 #include "interpreter/bytecodes.hpp"
  37 #include "memory/allocation.inline.hpp"
  38 #include "runtime/deoptimization.hpp"
  39 #include "utilities/growableArray.hpp"
  40 
  41 // ciTypeFlow::JsrSet
  42 //
  43 // A JsrSet represents some set of JsrRecords.  This class
  44 // is used to record a set of all jsr routines which we permit
  45 // execution to return (ret) from.
  46 //
  47 // During abstract interpretation, JsrSets are used to determine
  48 // whether two paths which reach a given block are unique, and
  49 // should be cloned apart, or are compatible, and should merge
  50 // together.
  51 
  52 // ------------------------------------------------------------------
  53 // ciTypeFlow::JsrSet::JsrSet
  54 ciTypeFlow::JsrSet::JsrSet(Arena* arena, int default_len) {
  55   if (arena != NULL) {
  56     // Allocate growable array in Arena.
  57     _set = new (arena) GrowableArray<JsrRecord*>(arena, default_len, 0, NULL);
  58   } else {
  59     // Allocate growable array in current ResourceArea.