src/share/vm/interpreter/interpreter.cpp
Index Unified diffs Context diffs Sdiffs Patch New Old Previous File Next File 7088419 Sdiff src/share/vm/interpreter

src/share/vm/interpreter/interpreter.cpp

Print this page


   1 /*
   2  * Copyright (c) 1997, 2012, 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  *


 178 
 179 }
 180 
 181 //------------------------------------------------------------------------------------------------------------------------
 182 // Entry points
 183 
 184 AbstractInterpreter::MethodKind AbstractInterpreter::method_kind(methodHandle m) {
 185   // Abstract method?
 186   if (m->is_abstract()) return abstract;
 187 
 188   // Method handle primitive?
 189   if (m->is_method_handle_intrinsic()) {
 190     vmIntrinsics::ID id = m->intrinsic_id();
 191     assert(MethodHandles::is_signature_polymorphic(id), "must match an intrinsic");
 192     MethodKind kind = (MethodKind)( method_handle_invoke_FIRST +
 193                                     ((int)id - vmIntrinsics::FIRST_MH_SIG_POLY) );
 194     assert(kind <= method_handle_invoke_LAST, "parallel enum ranges");
 195     return kind;
 196   }
 197 











 198   // Native method?
 199   // Note: This test must come _before_ the test for intrinsic
 200   //       methods. See also comments below.
 201   if (m->is_native()) {
 202     assert(!m->is_method_handle_intrinsic(), "overlapping bits here, watch out");
 203     return m->is_synchronized() ? native_synchronized : native;
 204   }
 205 
 206   // Synchronized?
 207   if (m->is_synchronized()) {
 208     return zerolocals_synchronized;
 209   }
 210 
 211   if (RegisterFinalizersAtInit && m->code_size() == 1 &&
 212       m->intrinsic_id() == vmIntrinsics::_Object_init) {
 213     // We need to execute the special return bytecode to check for
 214     // finalizer registration so create a normal frame.
 215     return zerolocals;
 216   }
 217 


 280 }
 281 
 282 
 283 #ifndef PRODUCT
 284 void AbstractInterpreter::print_method_kind(MethodKind kind) {
 285   switch (kind) {
 286     case zerolocals             : tty->print("zerolocals"             ); break;
 287     case zerolocals_synchronized: tty->print("zerolocals_synchronized"); break;
 288     case native                 : tty->print("native"                 ); break;
 289     case native_synchronized    : tty->print("native_synchronized"    ); break;
 290     case empty                  : tty->print("empty"                  ); break;
 291     case accessor               : tty->print("accessor"               ); break;
 292     case abstract               : tty->print("abstract"               ); break;
 293     case java_lang_math_sin     : tty->print("java_lang_math_sin"     ); break;
 294     case java_lang_math_cos     : tty->print("java_lang_math_cos"     ); break;
 295     case java_lang_math_tan     : tty->print("java_lang_math_tan"     ); break;
 296     case java_lang_math_abs     : tty->print("java_lang_math_abs"     ); break;
 297     case java_lang_math_sqrt    : tty->print("java_lang_math_sqrt"    ); break;
 298     case java_lang_math_log     : tty->print("java_lang_math_log"     ); break;
 299     case java_lang_math_log10   : tty->print("java_lang_math_log10"   ); break;



 300     default:
 301       if (kind >= method_handle_invoke_FIRST &&
 302           kind <= method_handle_invoke_LAST) {
 303         const char* kind_name = vmIntrinsics::name_at(method_handle_intrinsic(kind));
 304         if (kind_name[0] == '_')  kind_name = &kind_name[1];  // '_invokeExact' => 'invokeExact'
 305         tty->print("method_handle_%s", kind_name);
 306         break;
 307       }
 308       ShouldNotReachHere();
 309       break;
 310   }
 311 }
 312 #endif // PRODUCT
 313 
 314 
 315 //------------------------------------------------------------------------------------------------------------------------
 316 // Deoptimization support
 317 
 318 // If deoptimization happens, this function returns the point of next bytecode to continue execution
 319 address AbstractInterpreter::deopt_continue_after_entry(Method* method, address bcp, int callee_parameters, bool is_top_frame) {


   1 /*
   2  * Copyright (c) 1997, 2013, 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  *


 178 
 179 }
 180 
 181 //------------------------------------------------------------------------------------------------------------------------
 182 // Entry points
 183 
 184 AbstractInterpreter::MethodKind AbstractInterpreter::method_kind(methodHandle m) {
 185   // Abstract method?
 186   if (m->is_abstract()) return abstract;
 187 
 188   // Method handle primitive?
 189   if (m->is_method_handle_intrinsic()) {
 190     vmIntrinsics::ID id = m->intrinsic_id();
 191     assert(MethodHandles::is_signature_polymorphic(id), "must match an intrinsic");
 192     MethodKind kind = (MethodKind)( method_handle_invoke_FIRST +
 193                                     ((int)id - vmIntrinsics::FIRST_MH_SIG_POLY) );
 194     assert(kind <= method_handle_invoke_LAST, "parallel enum ranges");
 195     return kind;
 196   }
 197 
 198 #ifndef CC_INTERP
 199   if (UseCRC32Intrinsics && m->is_native()) {
 200     // Use optimized stub code for CRC32 native methods.
 201     switch (m->intrinsic_id()) {
 202       case vmIntrinsics::_updateCRC32            : return java_util_zip_CRC32_update;
 203       case vmIntrinsics::_updateBytesCRC32       : return java_util_zip_CRC32_updateBytes;
 204       case vmIntrinsics::_updateByteBufferCRC32  : return java_util_zip_CRC32_updateByteBuffer;
 205     }
 206   }
 207 #endif
 208 
 209   // Native method?
 210   // Note: This test must come _before_ the test for intrinsic
 211   //       methods. See also comments below.
 212   if (m->is_native()) {
 213     assert(!m->is_method_handle_intrinsic(), "overlapping bits here, watch out");
 214     return m->is_synchronized() ? native_synchronized : native;
 215   }
 216 
 217   // Synchronized?
 218   if (m->is_synchronized()) {
 219     return zerolocals_synchronized;
 220   }
 221 
 222   if (RegisterFinalizersAtInit && m->code_size() == 1 &&
 223       m->intrinsic_id() == vmIntrinsics::_Object_init) {
 224     // We need to execute the special return bytecode to check for
 225     // finalizer registration so create a normal frame.
 226     return zerolocals;
 227   }
 228 


 291 }
 292 
 293 
 294 #ifndef PRODUCT
 295 void AbstractInterpreter::print_method_kind(MethodKind kind) {
 296   switch (kind) {
 297     case zerolocals             : tty->print("zerolocals"             ); break;
 298     case zerolocals_synchronized: tty->print("zerolocals_synchronized"); break;
 299     case native                 : tty->print("native"                 ); break;
 300     case native_synchronized    : tty->print("native_synchronized"    ); break;
 301     case empty                  : tty->print("empty"                  ); break;
 302     case accessor               : tty->print("accessor"               ); break;
 303     case abstract               : tty->print("abstract"               ); break;
 304     case java_lang_math_sin     : tty->print("java_lang_math_sin"     ); break;
 305     case java_lang_math_cos     : tty->print("java_lang_math_cos"     ); break;
 306     case java_lang_math_tan     : tty->print("java_lang_math_tan"     ); break;
 307     case java_lang_math_abs     : tty->print("java_lang_math_abs"     ); break;
 308     case java_lang_math_sqrt    : tty->print("java_lang_math_sqrt"    ); break;
 309     case java_lang_math_log     : tty->print("java_lang_math_log"     ); break;
 310     case java_lang_math_log10   : tty->print("java_lang_math_log10"   ); break;
 311     case java_util_zip_CRC32_update           : tty->print("java_util_zip_CRC32_update"); break;
 312     case java_util_zip_CRC32_updateBytes      : tty->print("java_util_zip_CRC32_updateBytes"); break;
 313     case java_util_zip_CRC32_updateByteBuffer : tty->print("java_util_zip_CRC32_updateByteBuffer"); break;
 314     default:
 315       if (kind >= method_handle_invoke_FIRST &&
 316           kind <= method_handle_invoke_LAST) {
 317         const char* kind_name = vmIntrinsics::name_at(method_handle_intrinsic(kind));
 318         if (kind_name[0] == '_')  kind_name = &kind_name[1];  // '_invokeExact' => 'invokeExact'
 319         tty->print("method_handle_%s", kind_name);
 320         break;
 321       }
 322       ShouldNotReachHere();
 323       break;
 324   }
 325 }
 326 #endif // PRODUCT
 327 
 328 
 329 //------------------------------------------------------------------------------------------------------------------------
 330 // Deoptimization support
 331 
 332 // If deoptimization happens, this function returns the point of next bytecode to continue execution
 333 address AbstractInterpreter::deopt_continue_after_entry(Method* method, address bcp, int callee_parameters, bool is_top_frame) {


src/share/vm/interpreter/interpreter.cpp
Index Unified diffs Context diffs Sdiffs Patch New Old Previous File Next File