graal-jvmci-8: src/share/vm/oops/cpCacheOop.cpp annotate

annotate src/share/vm/oops/cpCacheOop.cpp @ 6266:1d7922586cf6

7023639: JSR 292 method handle invocation needs a fast path for compiled code 6984705: JSR 292 method handle creation should not go through JNI Summary: remove assembly code for JDK 7 chained method handles Reviewed-by: jrose, twisti, kvn, mhaupt Contributed-by: John Rose <john.r.rose@oracle.com>, Christian Thalinger <christian.thalinger@oracle.com>, Michael Haupt <michael.haupt@oracle.com>

author	twisti
date	Tue, 24 Jul 2012 10:51:00 -0700
parents	f096e1b74d85
children

rev	line source
0 a61af66fc99e Initial load duke parents: diff changeset	1 /*
5898 f096e1b74d85 7148126: ConstantPoolCacheEntry::print prints to wrong stream dholmes parents: 3938 diff changeset	2 * Copyright (c) 1998, 2012, Oracle and/or its affiliates. All rights reserved.
0 a61af66fc99e Initial load duke parents: diff changeset	3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
a61af66fc99e Initial load duke parents: diff changeset	4 *
a61af66fc99e Initial load duke parents: diff changeset	5 * This code is free software; you can redistribute it and/or modify it
a61af66fc99e Initial load duke parents: diff changeset	6 * under the terms of the GNU General Public License version 2 only, as
a61af66fc99e Initial load duke parents: diff changeset	7 * published by the Free Software Foundation.
a61af66fc99e Initial load duke parents: diff changeset	8 *
a61af66fc99e Initial load duke parents: diff changeset	9 * This code is distributed in the hope that it will be useful, but WITHOUT
a61af66fc99e Initial load duke parents: diff changeset	10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
a61af66fc99e Initial load duke parents: diff changeset	11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
a61af66fc99e Initial load duke parents: diff changeset	12 * version 2 for more details (a copy is included in the LICENSE file that
a61af66fc99e Initial load duke parents: diff changeset	13 * accompanied this code).
a61af66fc99e Initial load duke parents: diff changeset	14 *
a61af66fc99e Initial load duke parents: diff changeset	15 * You should have received a copy of the GNU General Public License version
a61af66fc99e Initial load duke parents: diff changeset	16 * 2 along with this work; if not, write to the Free Software Foundation,
a61af66fc99e Initial load duke parents: diff changeset	17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
a61af66fc99e Initial load duke parents: diff changeset	18 *
1552 c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1507 diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1507 diff changeset	20 * or visit www.oracle.com if you need additional information or have any
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1507 diff changeset	21 * questions.
0 a61af66fc99e Initial load duke parents: diff changeset	22 *
a61af66fc99e Initial load duke parents: diff changeset	23 */
a61af66fc99e Initial load duke parents: diff changeset	24
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1903 diff changeset	25 #include "precompiled.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1903 diff changeset	26 #include "gc_implementation/shared/markSweep.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1903 diff changeset	27 #include "interpreter/interpreter.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1903 diff changeset	28 #include "interpreter/rewriter.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1903 diff changeset	29 #include "memory/universe.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1903 diff changeset	30 #include "oops/cpCacheOop.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1903 diff changeset	31 #include "oops/objArrayOop.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1903 diff changeset	32 #include "oops/oop.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1903 diff changeset	33 #include "prims/jvmtiRedefineClassesTrace.hpp"
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	34 #include "prims/methodHandles.hpp"
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1903 diff changeset	35 #include "runtime/handles.inline.hpp"
0 a61af66fc99e Initial load duke parents: diff changeset	36
a61af66fc99e Initial load duke parents: diff changeset	37
a61af66fc99e Initial load duke parents: diff changeset	38 // Implememtation of ConstantPoolCacheEntry
a61af66fc99e Initial load duke parents: diff changeset	39
1059 389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638) jrose parents: 844 diff changeset	40 void ConstantPoolCacheEntry::initialize_entry(int index) {
726 be93aad57795 6655646: dynamic languages need dynamically linked call sites jrose parents: 196 diff changeset	41 assert(0 < index && index < 0x10000, "sanity check");
0 a61af66fc99e Initial load duke parents: diff changeset	42 _indices = index;
726 be93aad57795 6655646: dynamic languages need dynamically linked call sites jrose parents: 196 diff changeset	43 assert(constant_pool_index() == index, "");
0 a61af66fc99e Initial load duke parents: diff changeset	44 }
a61af66fc99e Initial load duke parents: diff changeset	45
1059 389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638) jrose parents: 844 diff changeset	46 void ConstantPoolCacheEntry::initialize_secondary_entry(int main_index) {
389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638) jrose parents: 844 diff changeset	47 assert(0 <= main_index && main_index < 0x10000, "sanity check");
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	48 _indices = (main_index << main_cp_index_bits);
1059 389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638) jrose parents: 844 diff changeset	49 assert(main_entry_index() == main_index, "");
389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638) jrose parents: 844 diff changeset	50 }
0 a61af66fc99e Initial load duke parents: diff changeset	51
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	52 int ConstantPoolCacheEntry::make_flags(TosState state,
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	53 int option_bits,
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	54 int field_index_or_method_params) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	55 assert(state < number_of_states, "Invalid state in make_flags");
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	56 int f = ((int)state << tos_state_shift) \| option_bits \| field_index_or_method_params;
0 a61af66fc99e Initial load duke parents: diff changeset	57 // Preserve existing flag bit values
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	58 // The low bits are a field offset, or else the method parameter size.
0 a61af66fc99e Initial load duke parents: diff changeset	59 #ifdef ASSERT
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	60 TosState old_state = flag_state();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	61 assert(old_state == (TosState)0 \|\| old_state == state,
0 a61af66fc99e Initial load duke parents: diff changeset	62 "inconsistent cpCache flags state");
a61af66fc99e Initial load duke parents: diff changeset	63 #endif
a61af66fc99e Initial load duke parents: diff changeset	64 return (_flags \| f) ;
a61af66fc99e Initial load duke parents: diff changeset	65 }
a61af66fc99e Initial load duke parents: diff changeset	66
a61af66fc99e Initial load duke parents: diff changeset	67 void ConstantPoolCacheEntry::set_bytecode_1(Bytecodes::Code code) {
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	68 assert(!is_secondary_entry(), "must not overwrite main_entry_index");
0 a61af66fc99e Initial load duke parents: diff changeset	69 #ifdef ASSERT
a61af66fc99e Initial load duke parents: diff changeset	70 // Read once.
a61af66fc99e Initial load duke parents: diff changeset	71 volatile Bytecodes::Code c = bytecode_1();
a61af66fc99e Initial load duke parents: diff changeset	72 assert(c == 0 \|\| c == code \|\| code == 0, "update must be consistent");
a61af66fc99e Initial load duke parents: diff changeset	73 #endif
a61af66fc99e Initial load duke parents: diff changeset	74 // Need to flush pending stores here before bytecode is written.
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	75 OrderAccess::release_store_ptr(&_indices, _indices \| ((u_char)code << bytecode_1_shift));
0 a61af66fc99e Initial load duke parents: diff changeset	76 }
a61af66fc99e Initial load duke parents: diff changeset	77
a61af66fc99e Initial load duke parents: diff changeset	78 void ConstantPoolCacheEntry::set_bytecode_2(Bytecodes::Code code) {
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	79 assert(!is_secondary_entry(), "must not overwrite main_entry_index");
0 a61af66fc99e Initial load duke parents: diff changeset	80 #ifdef ASSERT
a61af66fc99e Initial load duke parents: diff changeset	81 // Read once.
a61af66fc99e Initial load duke parents: diff changeset	82 volatile Bytecodes::Code c = bytecode_2();
a61af66fc99e Initial load duke parents: diff changeset	83 assert(c == 0 \|\| c == code \|\| code == 0, "update must be consistent");
a61af66fc99e Initial load duke parents: diff changeset	84 #endif
a61af66fc99e Initial load duke parents: diff changeset	85 // Need to flush pending stores here before bytecode is written.
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	86 OrderAccess::release_store_ptr(&_indices, _indices \| ((u_char)code << bytecode_2_shift));
0 a61af66fc99e Initial load duke parents: diff changeset	87 }
a61af66fc99e Initial load duke parents: diff changeset	88
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	89 // Sets f1, ordering with previous writes.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	90 void ConstantPoolCacheEntry::release_set_f1(oop f1) {
2246 fbf3184da15d 7012339: JSR 292 crash in G1SATBCardTableModRefBS::write_ref_field_pre_work() twisti parents: 1972 diff changeset	91 // Use barriers as in oop_store
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	92 assert(f1 != NULL, "");
2246 fbf3184da15d 7012339: JSR 292 crash in G1SATBCardTableModRefBS::write_ref_field_pre_work() twisti parents: 1972 diff changeset	93 oop* f1_addr = (oop*) &_f1;
fbf3184da15d 7012339: JSR 292 crash in G1SATBCardTableModRefBS::write_ref_field_pre_work() twisti parents: 1972 diff changeset	94 update_barrier_set_pre(f1_addr, f1);
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	95 OrderAccess::release_store_ptr((intptr_t*)f1_addr, f1);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	96 update_barrier_set((void*) f1_addr, f1);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	97 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	98
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	99 // Sets flags, but only if the value was previously zero.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	100 bool ConstantPoolCacheEntry::init_flags_atomic(intptr_t flags) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	101 intptr_t result = Atomic::cmpxchg_ptr(flags, &_flags, 0);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	102 return (result == 0);
2246 fbf3184da15d 7012339: JSR 292 crash in G1SATBCardTableModRefBS::write_ref_field_pre_work() twisti parents: 1972 diff changeset	103 }
1903 87d6a4d1ecbc 6990192: VM crashes in ciTypeFlow::get_block_for() twisti parents: 1662 diff changeset	104
0 a61af66fc99e Initial load duke parents: diff changeset	105 #ifdef ASSERT
a61af66fc99e Initial load duke parents: diff changeset	106 // It is possible to have two different dummy methodOops created
a61af66fc99e Initial load duke parents: diff changeset	107 // when the resolve code for invoke interface executes concurrently
a61af66fc99e Initial load duke parents: diff changeset	108 // Hence the assertion below is weakened a bit for the invokeinterface
a61af66fc99e Initial load duke parents: diff changeset	109 // case.
a61af66fc99e Initial load duke parents: diff changeset	110 bool ConstantPoolCacheEntry::same_methodOop(oop cur_f1, oop f1) {
a61af66fc99e Initial load duke parents: diff changeset	111 return (cur_f1 == f1 \|\| ((methodOop)cur_f1)->name() ==
a61af66fc99e Initial load duke parents: diff changeset	112 ((methodOop)f1)->name() \|\| ((methodOop)cur_f1)->signature() ==
a61af66fc99e Initial load duke parents: diff changeset	113 ((methodOop)f1)->signature());
a61af66fc99e Initial load duke parents: diff changeset	114 }
a61af66fc99e Initial load duke parents: diff changeset	115 #endif
a61af66fc99e Initial load duke parents: diff changeset	116
a61af66fc99e Initial load duke parents: diff changeset	117 // Note that concurrent update of both bytecodes can leave one of them
a61af66fc99e Initial load duke parents: diff changeset	118 // reset to zero. This is harmless; the interpreter will simply re-resolve
a61af66fc99e Initial load duke parents: diff changeset	119 // the damaged entry. More seriously, the memory synchronization is needed
a61af66fc99e Initial load duke parents: diff changeset	120 // to flush other fields (f1, f2) completely to memory before the bytecodes
a61af66fc99e Initial load duke parents: diff changeset	121 // are updated, lest other processors see a non-zero bytecode but zero f1/f2.
a61af66fc99e Initial load duke parents: diff changeset	122 void ConstantPoolCacheEntry::set_field(Bytecodes::Code get_code,
a61af66fc99e Initial load duke parents: diff changeset	123 Bytecodes::Code put_code,
a61af66fc99e Initial load duke parents: diff changeset	124 KlassHandle field_holder,
3938 e6b1331a51d2 7086585: make Java field injection more flexible never parents: 3785 diff changeset	125 int field_index,
0 a61af66fc99e Initial load duke parents: diff changeset	126 int field_offset,
a61af66fc99e Initial load duke parents: diff changeset	127 TosState field_type,
a61af66fc99e Initial load duke parents: diff changeset	128 bool is_final,
a61af66fc99e Initial load duke parents: diff changeset	129 bool is_volatile) {
2376 c7f3d0b4570f 7017732: move static fields into Class to prepare for perm gen removal never parents: 2264 diff changeset	130 set_f1(field_holder()->java_mirror());
0 a61af66fc99e Initial load duke parents: diff changeset	131 set_f2(field_offset);
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	132 assert((field_index & field_index_mask) == field_index,
0 a61af66fc99e Initial load duke parents: diff changeset	133 "field index does not fit in low flag bits");
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	134 set_field_flags(field_type,
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	135 ((is_volatile ? 1 : 0) << is_volatile_shift) \|
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	136 ((is_final ? 1 : 0) << is_final_shift),
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	137 field_index);
0 a61af66fc99e Initial load duke parents: diff changeset	138 set_bytecode_1(get_code);
a61af66fc99e Initial load duke parents: diff changeset	139 set_bytecode_2(put_code);
a61af66fc99e Initial load duke parents: diff changeset	140 NOT_PRODUCT(verify(tty));
a61af66fc99e Initial load duke parents: diff changeset	141 }
a61af66fc99e Initial load duke parents: diff changeset	142
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	143 void ConstantPoolCacheEntry::set_parameter_size(int value) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	144 // This routine is called only in corner cases where the CPCE is not yet initialized.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	145 // See AbstractInterpreter::deopt_continue_after_entry.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	146 assert(_flags == 0 \|\| parameter_size() == 0 \|\| parameter_size() == value,
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	147 err_msg("size must not change: parameter_size=%d, value=%d", parameter_size(), value));
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	148 // Setting the parameter size by itself is only safe if the
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	149 // current value of _flags is 0, otherwise another thread may have
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	150 // updated it and we don't want to overwrite that value. Don't
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	151 // bother trying to update it once it's nonzero but always make
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	152 // sure that the final parameter size agrees with what was passed.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	153 if (_flags == 0) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	154 Atomic::cmpxchg_ptr((value & parameter_size_mask), &_flags, 0);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	155 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	156 guarantee(parameter_size() == value,
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	157 err_msg("size must not change: parameter_size=%d, value=%d", parameter_size(), value));
0 a61af66fc99e Initial load duke parents: diff changeset	158 }
a61af66fc99e Initial load duke parents: diff changeset	159
a61af66fc99e Initial load duke parents: diff changeset	160 void ConstantPoolCacheEntry::set_method(Bytecodes::Code invoke_code,
a61af66fc99e Initial load duke parents: diff changeset	161 methodHandle method,
a61af66fc99e Initial load duke parents: diff changeset	162 int vtable_index) {
1660 083fde3b838e 6964498: JSR 292 invokedynamic sites need local bootstrap methods jrose parents: 1552 diff changeset	163 assert(!is_secondary_entry(), "");
0 a61af66fc99e Initial load duke parents: diff changeset	164 assert(method->interpreter_entry() != NULL, "should have been set at this point");
a61af66fc99e Initial load duke parents: diff changeset	165 assert(!method->is_obsolete(), "attempt to write obsolete method to cpCache");
a61af66fc99e Initial load duke parents: diff changeset	166
a61af66fc99e Initial load duke parents: diff changeset	167 int byte_no = -1;
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	168 bool change_to_virtual = false;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	169
0 a61af66fc99e Initial load duke parents: diff changeset	170 switch (invoke_code) {
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	171 case Bytecodes::_invokeinterface:
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	172 // We get here from InterpreterRuntime::resolve_invoke when an invokeinterface
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	173 // instruction somehow links to a non-interface method (in Object).
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	174 // In that case, the method has no itable index and must be invoked as a virtual.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	175 // Set a flag to keep track of this corner case.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	176 change_to_virtual = true;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	177
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	178 // ...and fall through as if we were handling invokevirtual:
0 a61af66fc99e Initial load duke parents: diff changeset	179 case Bytecodes::_invokevirtual:
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	180 {
0 a61af66fc99e Initial load duke parents: diff changeset	181 if (method->can_be_statically_bound()) {
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	182 // set_f2_as_vfinal_method checks if is_vfinal flag is true.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	183 set_method_flags(as_TosState(method->result_type()),
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	184 ( 1 << is_vfinal_shift) \|
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	185 ((method->is_final_method() ? 1 : 0) << is_final_shift) \|
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	186 ((change_to_virtual ? 1 : 0) << is_forced_virtual_shift),
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	187 method()->size_of_parameters());
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	188 set_f2_as_vfinal_method(method());
0 a61af66fc99e Initial load duke parents: diff changeset	189 } else {
a61af66fc99e Initial load duke parents: diff changeset	190 assert(vtable_index >= 0, "valid index");
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	191 assert(!method->is_final_method(), "sanity");
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	192 set_method_flags(as_TosState(method->result_type()),
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	193 ((change_to_virtual ? 1 : 0) << is_forced_virtual_shift),
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	194 method()->size_of_parameters());
0 a61af66fc99e Initial load duke parents: diff changeset	195 set_f2(vtable_index);
a61af66fc99e Initial load duke parents: diff changeset	196 }
a61af66fc99e Initial load duke parents: diff changeset	197 byte_no = 2;
a61af66fc99e Initial load duke parents: diff changeset	198 break;
1660 083fde3b838e 6964498: JSR 292 invokedynamic sites need local bootstrap methods jrose parents: 1552 diff changeset	199 }
083fde3b838e 6964498: JSR 292 invokedynamic sites need local bootstrap methods jrose parents: 1552 diff changeset	200
0 a61af66fc99e Initial load duke parents: diff changeset	201 case Bytecodes::_invokespecial:
a61af66fc99e Initial load duke parents: diff changeset	202 case Bytecodes::_invokestatic:
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	203 // Note: Read and preserve the value of the is_vfinal flag on any
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	204 // invokevirtual bytecode shared with this constant pool cache entry.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	205 // It is cheap and safe to consult is_vfinal() at all times.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	206 // Once is_vfinal is set, it must stay that way, lest we get a dangling oop.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	207 set_method_flags(as_TosState(method->result_type()),
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	208 ((is_vfinal() ? 1 : 0) << is_vfinal_shift) \|
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	209 ((method->is_final_method() ? 1 : 0) << is_final_shift),
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	210 method()->size_of_parameters());
0 a61af66fc99e Initial load duke parents: diff changeset	211 set_f1(method());
a61af66fc99e Initial load duke parents: diff changeset	212 byte_no = 1;
a61af66fc99e Initial load duke parents: diff changeset	213 break;
a61af66fc99e Initial load duke parents: diff changeset	214 default:
a61af66fc99e Initial load duke parents: diff changeset	215 ShouldNotReachHere();
a61af66fc99e Initial load duke parents: diff changeset	216 break;
a61af66fc99e Initial load duke parents: diff changeset	217 }
a61af66fc99e Initial load duke parents: diff changeset	218
a61af66fc99e Initial load duke parents: diff changeset	219 // Note: byte_no also appears in TemplateTable::resolve.
a61af66fc99e Initial load duke parents: diff changeset	220 if (byte_no == 1) {
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	221 assert(invoke_code != Bytecodes::_invokevirtual &&
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	222 invoke_code != Bytecodes::_invokeinterface, "");
0 a61af66fc99e Initial load duke parents: diff changeset	223 set_bytecode_1(invoke_code);
a61af66fc99e Initial load duke parents: diff changeset	224 } else if (byte_no == 2) {
a61af66fc99e Initial load duke parents: diff changeset	225 if (change_to_virtual) {
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	226 assert(invoke_code == Bytecodes::_invokeinterface, "");
0 a61af66fc99e Initial load duke parents: diff changeset	227 // NOTE: THIS IS A HACK - BE VERY CAREFUL!!!
a61af66fc99e Initial load duke parents: diff changeset	228 //
a61af66fc99e Initial load duke parents: diff changeset	229 // Workaround for the case where we encounter an invokeinterface, but we
a61af66fc99e Initial load duke parents: diff changeset	230 // should really have an _invokevirtual since the resolved method is a
a61af66fc99e Initial load duke parents: diff changeset	231 // virtual method in java.lang.Object. This is a corner case in the spec
a61af66fc99e Initial load duke parents: diff changeset	232 // but is presumably legal. javac does not generate this code.
a61af66fc99e Initial load duke parents: diff changeset	233 //
a61af66fc99e Initial load duke parents: diff changeset	234 // We set bytecode_1() to _invokeinterface, because that is the
a61af66fc99e Initial load duke parents: diff changeset	235 // bytecode # used by the interpreter to see if it is resolved.
a61af66fc99e Initial load duke parents: diff changeset	236 // We set bytecode_2() to _invokevirtual.
a61af66fc99e Initial load duke parents: diff changeset	237 // See also interpreterRuntime.cpp. (8/25/2000)
a61af66fc99e Initial load duke parents: diff changeset	238 // Only set resolved for the invokeinterface case if method is public.
a61af66fc99e Initial load duke parents: diff changeset	239 // Otherwise, the method needs to be reresolved with caller for each
a61af66fc99e Initial load duke parents: diff changeset	240 // interface call.
a61af66fc99e Initial load duke parents: diff changeset	241 if (method->is_public()) set_bytecode_1(invoke_code);
a61af66fc99e Initial load duke parents: diff changeset	242 } else {
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	243 assert(invoke_code == Bytecodes::_invokevirtual, "");
0 a61af66fc99e Initial load duke parents: diff changeset	244 }
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	245 // set up for invokevirtual, even if linking for invokeinterface also:
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	246 set_bytecode_2(Bytecodes::_invokevirtual);
0 a61af66fc99e Initial load duke parents: diff changeset	247 } else {
a61af66fc99e Initial load duke parents: diff changeset	248 ShouldNotReachHere();
a61af66fc99e Initial load duke parents: diff changeset	249 }
a61af66fc99e Initial load duke parents: diff changeset	250 NOT_PRODUCT(verify(tty));
a61af66fc99e Initial load duke parents: diff changeset	251 }
a61af66fc99e Initial load duke parents: diff changeset	252
a61af66fc99e Initial load duke parents: diff changeset	253
a61af66fc99e Initial load duke parents: diff changeset	254 void ConstantPoolCacheEntry::set_interface_call(methodHandle method, int index) {
1660 083fde3b838e 6964498: JSR 292 invokedynamic sites need local bootstrap methods jrose parents: 1552 diff changeset	255 assert(!is_secondary_entry(), "");
0 a61af66fc99e Initial load duke parents: diff changeset	256 klassOop interf = method->method_holder();
a61af66fc99e Initial load duke parents: diff changeset	257 assert(instanceKlass::cast(interf)->is_interface(), "must be an interface");
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	258 assert(!method->is_final_method(), "interfaces do not have final methods; cannot link to one here");
0 a61af66fc99e Initial load duke parents: diff changeset	259 set_f1(interf);
a61af66fc99e Initial load duke parents: diff changeset	260 set_f2(index);
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	261 set_method_flags(as_TosState(method->result_type()),
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	262 0, // no option bits
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	263 method()->size_of_parameters());
0 a61af66fc99e Initial load duke parents: diff changeset	264 set_bytecode_1(Bytecodes::_invokeinterface);
a61af66fc99e Initial load duke parents: diff changeset	265 }
a61af66fc99e Initial load duke parents: diff changeset	266
a61af66fc99e Initial load duke parents: diff changeset	267
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	268 void ConstantPoolCacheEntry::set_method_handle(methodHandle adapter, Handle appendix) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	269 assert(!is_secondary_entry(), "");
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	270 set_method_handle_common(Bytecodes::_invokehandle, adapter, appendix);
1660 083fde3b838e 6964498: JSR 292 invokedynamic sites need local bootstrap methods jrose parents: 1552 diff changeset	271 }
083fde3b838e 6964498: JSR 292 invokedynamic sites need local bootstrap methods jrose parents: 1552 diff changeset	272
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	273 void ConstantPoolCacheEntry::set_dynamic_call(methodHandle adapter, Handle appendix) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	274 assert(is_secondary_entry(), "");
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	275 set_method_handle_common(Bytecodes::_invokedynamic, adapter, appendix);
1660 083fde3b838e 6964498: JSR 292 invokedynamic sites need local bootstrap methods jrose parents: 1552 diff changeset	276 }
083fde3b838e 6964498: JSR 292 invokedynamic sites need local bootstrap methods jrose parents: 1552 diff changeset	277
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	278 void ConstantPoolCacheEntry::set_method_handle_common(Bytecodes::Code invoke_code, methodHandle adapter, Handle appendix) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	279 // NOTE: This CPCE can be the subject of data races.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	280 // There are three words to update: flags, f2, f1 (in that order).
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	281 // Writers must store all other values before f1.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	282 // Readers must test f1 first for non-null before reading other fields.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	283 // Competing writers must acquire exclusive access on the first
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	284 // write, to flags, using a compare/exchange.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	285 // A losing writer must spin until the winner writes f1,
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	286 // so that when he returns, he can use the linked cache entry.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	287
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	288 bool has_appendix = appendix.not_null();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	289 if (!has_appendix) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	290 // The extra argument is not used, but we need a non-null value to signify linkage state.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	291 // Set it to something benign that will never leak memory.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	292 appendix = Universe::void_mirror();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	293 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	294
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	295 bool owner =
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	296 init_method_flags_atomic(as_TosState(adapter->result_type()),
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	297 ((has_appendix ? 1 : 0) << has_appendix_shift) \|
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	298 ( 1 << is_vfinal_shift) \|
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	299 ( 1 << is_final_shift),
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	300 adapter->size_of_parameters());
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	301 if (!owner) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	302 while (is_f1_null()) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	303 // Pause momentarily on a low-level lock, to allow racing thread to win.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	304 MutexLockerEx mu(Patching_lock, Mutex::_no_safepoint_check_flag);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	305 os::yield();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	306 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	307 return;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	308 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	309
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	310 if (TraceInvokeDynamic) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	311 tty->print_cr("set_method_handle bc=%d appendix="PTR_FORMAT"%s method="PTR_FORMAT" ",
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	312 invoke_code,
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	313 (intptr_t)appendix(), (has_appendix ? "" : " (unused)"),
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	314 (intptr_t)adapter());
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	315 adapter->print();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	316 if (has_appendix) appendix()->print();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	317 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	318
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	319 // Method handle invokes and invokedynamic sites use both cp cache words.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	320 // f1, if not null, contains a value passed as a trailing argument to the adapter.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	321 // In the general case, this could be the call site's MethodType,
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	322 // for use with java.lang.Invokers.checkExactType, or else a CallSite object.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	323 // f2 contains the adapter method which manages the actual call.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	324 // In the general case, this is a compiled LambdaForm.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	325 // (The Java code is free to optimize these calls by binding other
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	326 // sorts of methods and appendices to call sites.)
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	327 // JVM-level linking is via f2, as if for invokevfinal, and signatures are erased.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	328 // The appendix argument (if any) is added to the signature, and is counted in the parameter_size bits.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	329 // In principle this means that the method (with appendix) could take up to 256 parameter slots.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	330 //
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	331 // This means that given a call site like (List)mh.invoke("foo"),
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	332 // the f2 method has signature '(Ljl/Object;Ljl/invoke/MethodType;)Ljl/Object;',
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	333 // not '(Ljava/lang/String;)Ljava/util/List;'.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	334 // The fact that String and List are involved is encoded in the MethodType in f1.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	335 // This allows us to create fewer method oops, while keeping type safety.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	336 //
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	337 set_f2_as_vfinal_method(adapter());
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	338 assert(appendix.not_null(), "needed for linkage state");
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	339 release_set_f1(appendix()); // This must be the last one to set (see NOTE above)!
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	340 if (!is_secondary_entry()) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	341 // The interpreter assembly code does not check byte_2,
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	342 // but it is used by is_resolved, method_if_resolved, etc.
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	343 set_bytecode_2(invoke_code);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	344 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	345 NOT_PRODUCT(verify(tty));
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	346 if (TraceInvokeDynamic) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	347 this->print(tty, 0);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	348 }
726 be93aad57795 6655646: dynamic languages need dynamically linked call sites jrose parents: 196 diff changeset	349 }
be93aad57795 6655646: dynamic languages need dynamically linked call sites jrose parents: 196 diff changeset	350
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	351 methodOop ConstantPoolCacheEntry::method_if_resolved(constantPoolHandle cpool) {
3785 ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	352 if (is_secondary_entry()) {
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	353 if (!is_f1_null())
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	354 return f2_as_vfinal_method();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	355 return NULL;
3785 ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	356 }
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	357 // Decode the action of set_method and set_interface_call
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	358 Bytecodes::Code invoke_code = bytecode_1();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	359 if (invoke_code != (Bytecodes::Code)0) {
3785 ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	360 oop f1 = _f1;
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	361 if (f1 != NULL) {
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	362 switch (invoke_code) {
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	363 case Bytecodes::_invokeinterface:
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	364 assert(f1->is_klass(), "");
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	365 return klassItable::method_for_itable_index(klassOop(f1), f2_as_index());
3785 ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	366 case Bytecodes::_invokestatic:
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	367 case Bytecodes::_invokespecial:
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	368 assert(!has_appendix(), "");
3785 ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	369 assert(f1->is_method(), "");
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	370 return methodOop(f1);
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	371 }
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	372 }
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	373 }
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	374 invoke_code = bytecode_2();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	375 if (invoke_code != (Bytecodes::Code)0) {
3785 ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	376 switch (invoke_code) {
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	377 case Bytecodes::_invokevirtual:
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	378 if (is_vfinal()) {
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	379 // invokevirtual
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	380 methodOop m = f2_as_vfinal_method();
3785 ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	381 assert(m->is_method(), "");
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	382 return m;
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	383 } else {
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	384 int holder_index = cpool->uncached_klass_ref_index_at(constant_pool_index());
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	385 if (cpool->tag_at(holder_index).is_klass()) {
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	386 klassOop klass = cpool->resolved_klass_at(holder_index);
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	387 if (!Klass::cast(klass)->oop_is_instance())
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	388 klass = SystemDictionary::Object_klass();
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	389 return instanceKlass::cast(klass)->method_at_vtable(f2_as_index());
3785 ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	390 }
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	391 }
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	392 break;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	393 case Bytecodes::_invokehandle:
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	394 case Bytecodes::_invokedynamic:
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	395 return f2_as_vfinal_method();
3785 ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	396 }
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	397 }
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	398 return NULL;
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	399 }
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	400
ddd894528dbc 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path jrose parents: 3279 diff changeset	401
0 a61af66fc99e Initial load duke parents: diff changeset	402 class LocalOopClosure: public OopClosure {
a61af66fc99e Initial load duke parents: diff changeset	403 private:
a61af66fc99e Initial load duke parents: diff changeset	404 void (_f)(oop);
a61af66fc99e Initial load duke parents: diff changeset	405
a61af66fc99e Initial load duke parents: diff changeset	406 public:
a61af66fc99e Initial load duke parents: diff changeset	407 LocalOopClosure(void f(oop*)) { _f = f; }
a61af66fc99e Initial load duke parents: diff changeset	408 virtual void do_oop(oop* o) { _f(o); }
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	409 virtual void do_oop(narrowOop *o) { ShouldNotReachHere(); }
0 a61af66fc99e Initial load duke parents: diff changeset	410 };
a61af66fc99e Initial load duke parents: diff changeset	411
a61af66fc99e Initial load duke parents: diff changeset	412
a61af66fc99e Initial load duke parents: diff changeset	413 void ConstantPoolCacheEntry::oops_do(void f(oop*)) {
a61af66fc99e Initial load duke parents: diff changeset	414 LocalOopClosure blk(f);
a61af66fc99e Initial load duke parents: diff changeset	415 oop_iterate(&blk);
a61af66fc99e Initial load duke parents: diff changeset	416 }
a61af66fc99e Initial load duke parents: diff changeset	417
a61af66fc99e Initial load duke parents: diff changeset	418
a61af66fc99e Initial load duke parents: diff changeset	419 void ConstantPoolCacheEntry::oop_iterate(OopClosure* blk) {
a61af66fc99e Initial load duke parents: diff changeset	420 assert(in_words(size()) == 4, "check code below - may need adjustment");
a61af66fc99e Initial load duke parents: diff changeset	421 // field[1] is always oop or NULL
a61af66fc99e Initial load duke parents: diff changeset	422 blk->do_oop((oop*)&_f1);
a61af66fc99e Initial load duke parents: diff changeset	423 if (is_vfinal()) {
a61af66fc99e Initial load duke parents: diff changeset	424 blk->do_oop((oop*)&_f2);
a61af66fc99e Initial load duke parents: diff changeset	425 }
a61af66fc99e Initial load duke parents: diff changeset	426 }
a61af66fc99e Initial load duke parents: diff changeset	427
a61af66fc99e Initial load duke parents: diff changeset	428
a61af66fc99e Initial load duke parents: diff changeset	429 void ConstantPoolCacheEntry::oop_iterate_m(OopClosure* blk, MemRegion mr) {
a61af66fc99e Initial load duke parents: diff changeset	430 assert(in_words(size()) == 4, "check code below - may need adjustment");
a61af66fc99e Initial load duke parents: diff changeset	431 // field[1] is always oop or NULL
a61af66fc99e Initial load duke parents: diff changeset	432 if (mr.contains((oop )&_f1)) blk->do_oop((oop)&_f1);
a61af66fc99e Initial load duke parents: diff changeset	433 if (is_vfinal()) {
a61af66fc99e Initial load duke parents: diff changeset	434 if (mr.contains((oop )&_f2)) blk->do_oop((oop)&_f2);
a61af66fc99e Initial load duke parents: diff changeset	435 }
a61af66fc99e Initial load duke parents: diff changeset	436 }
a61af66fc99e Initial load duke parents: diff changeset	437
a61af66fc99e Initial load duke parents: diff changeset	438
a61af66fc99e Initial load duke parents: diff changeset	439 void ConstantPoolCacheEntry::follow_contents() {
a61af66fc99e Initial load duke parents: diff changeset	440 assert(in_words(size()) == 4, "check code below - may need adjustment");
a61af66fc99e Initial load duke parents: diff changeset	441 // field[1] is always oop or NULL
a61af66fc99e Initial load duke parents: diff changeset	442 MarkSweep::mark_and_push((oop*)&_f1);
a61af66fc99e Initial load duke parents: diff changeset	443 if (is_vfinal()) {
a61af66fc99e Initial load duke parents: diff changeset	444 MarkSweep::mark_and_push((oop*)&_f2);
a61af66fc99e Initial load duke parents: diff changeset	445 }
a61af66fc99e Initial load duke parents: diff changeset	446 }
a61af66fc99e Initial load duke parents: diff changeset	447
a61af66fc99e Initial load duke parents: diff changeset	448 #ifndef SERIALGC
a61af66fc99e Initial load duke parents: diff changeset	449 void ConstantPoolCacheEntry::follow_contents(ParCompactionManager* cm) {
a61af66fc99e Initial load duke parents: diff changeset	450 assert(in_words(size()) == 4, "check code below - may need adjustment");
a61af66fc99e Initial load duke parents: diff changeset	451 // field[1] is always oop or NULL
a61af66fc99e Initial load duke parents: diff changeset	452 PSParallelCompact::mark_and_push(cm, (oop*)&_f1);
a61af66fc99e Initial load duke parents: diff changeset	453 if (is_vfinal()) {
a61af66fc99e Initial load duke parents: diff changeset	454 PSParallelCompact::mark_and_push(cm, (oop*)&_f2);
a61af66fc99e Initial load duke parents: diff changeset	455 }
a61af66fc99e Initial load duke parents: diff changeset	456 }
a61af66fc99e Initial load duke parents: diff changeset	457 #endif // SERIALGC
a61af66fc99e Initial load duke parents: diff changeset	458
a61af66fc99e Initial load duke parents: diff changeset	459 void ConstantPoolCacheEntry::adjust_pointers() {
a61af66fc99e Initial load duke parents: diff changeset	460 assert(in_words(size()) == 4, "check code below - may need adjustment");
a61af66fc99e Initial load duke parents: diff changeset	461 // field[1] is always oop or NULL
a61af66fc99e Initial load duke parents: diff changeset	462 MarkSweep::adjust_pointer((oop*)&_f1);
a61af66fc99e Initial load duke parents: diff changeset	463 if (is_vfinal()) {
a61af66fc99e Initial load duke parents: diff changeset	464 MarkSweep::adjust_pointer((oop*)&_f2);
a61af66fc99e Initial load duke parents: diff changeset	465 }
a61af66fc99e Initial load duke parents: diff changeset	466 }
a61af66fc99e Initial load duke parents: diff changeset	467
a61af66fc99e Initial load duke parents: diff changeset	468 #ifndef SERIALGC
a61af66fc99e Initial load duke parents: diff changeset	469 void ConstantPoolCacheEntry::update_pointers() {
a61af66fc99e Initial load duke parents: diff changeset	470 assert(in_words(size()) == 4, "check code below - may need adjustment");
a61af66fc99e Initial load duke parents: diff changeset	471 // field[1] is always oop or NULL
a61af66fc99e Initial load duke parents: diff changeset	472 PSParallelCompact::adjust_pointer((oop*)&_f1);
a61af66fc99e Initial load duke parents: diff changeset	473 if (is_vfinal()) {
a61af66fc99e Initial load duke parents: diff changeset	474 PSParallelCompact::adjust_pointer((oop*)&_f2);
a61af66fc99e Initial load duke parents: diff changeset	475 }
a61af66fc99e Initial load duke parents: diff changeset	476 }
a61af66fc99e Initial load duke parents: diff changeset	477 #endif // SERIALGC
a61af66fc99e Initial load duke parents: diff changeset	478
a61af66fc99e Initial load duke parents: diff changeset	479 // RedefineClasses() API support:
a61af66fc99e Initial load duke parents: diff changeset	480 // If this constantPoolCacheEntry refers to old_method then update it
a61af66fc99e Initial load duke parents: diff changeset	481 // to refer to new_method.
a61af66fc99e Initial load duke parents: diff changeset	482 bool ConstantPoolCacheEntry::adjust_method_entry(methodOop old_method,
a61af66fc99e Initial load duke parents: diff changeset	483 methodOop new_method, bool * trace_name_printed) {
a61af66fc99e Initial load duke parents: diff changeset	484
a61af66fc99e Initial load duke parents: diff changeset	485 if (is_vfinal()) {
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	486 // virtual and final so _f2 contains method ptr instead of vtable index
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	487 if (f2_as_vfinal_method() == old_method) {
0 a61af66fc99e Initial load duke parents: diff changeset	488 // match old_method so need an update
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	489 // NOTE: can't use set_f2_as_vfinal_method as it asserts on different values
0 a61af66fc99e Initial load duke parents: diff changeset	490 _f2 = (intptr_t)new_method;
a61af66fc99e Initial load duke parents: diff changeset	491 if (RC_TRACE_IN_RANGE(0x00100000, 0x00400000)) {
a61af66fc99e Initial load duke parents: diff changeset	492 if (!(*trace_name_printed)) {
a61af66fc99e Initial load duke parents: diff changeset	493 // RC_TRACE_MESG macro has an embedded ResourceMark
a61af66fc99e Initial load duke parents: diff changeset	494 RC_TRACE_MESG(("adjust: name=%s",
a61af66fc99e Initial load duke parents: diff changeset	495 Klass::cast(old_method->method_holder())->external_name()));
a61af66fc99e Initial load duke parents: diff changeset	496 *trace_name_printed = true;
a61af66fc99e Initial load duke parents: diff changeset	497 }
a61af66fc99e Initial load duke parents: diff changeset	498 // RC_TRACE macro has an embedded ResourceMark
a61af66fc99e Initial load duke parents: diff changeset	499 RC_TRACE(0x00400000, ("cpc vf-entry update: %s(%s)",
a61af66fc99e Initial load duke parents: diff changeset	500 new_method->name()->as_C_string(),
a61af66fc99e Initial load duke parents: diff changeset	501 new_method->signature()->as_C_string()));
a61af66fc99e Initial load duke parents: diff changeset	502 }
a61af66fc99e Initial load duke parents: diff changeset	503
a61af66fc99e Initial load duke parents: diff changeset	504 return true;
a61af66fc99e Initial load duke parents: diff changeset	505 }
a61af66fc99e Initial load duke parents: diff changeset	506
a61af66fc99e Initial load duke parents: diff changeset	507 // f1() is not used with virtual entries so bail out
a61af66fc99e Initial load duke parents: diff changeset	508 return false;
a61af66fc99e Initial load duke parents: diff changeset	509 }
a61af66fc99e Initial load duke parents: diff changeset	510
a61af66fc99e Initial load duke parents: diff changeset	511 if ((oop)_f1 == NULL) {
a61af66fc99e Initial load duke parents: diff changeset	512 // NULL f1() means this is a virtual entry so bail out
a61af66fc99e Initial load duke parents: diff changeset	513 // We are assuming that the vtable index does not need change.
a61af66fc99e Initial load duke parents: diff changeset	514 return false;
a61af66fc99e Initial load duke parents: diff changeset	515 }
a61af66fc99e Initial load duke parents: diff changeset	516
a61af66fc99e Initial load duke parents: diff changeset	517 if ((oop)_f1 == old_method) {
a61af66fc99e Initial load duke parents: diff changeset	518 _f1 = new_method;
a61af66fc99e Initial load duke parents: diff changeset	519 if (RC_TRACE_IN_RANGE(0x00100000, 0x00400000)) {
a61af66fc99e Initial load duke parents: diff changeset	520 if (!(*trace_name_printed)) {
a61af66fc99e Initial load duke parents: diff changeset	521 // RC_TRACE_MESG macro has an embedded ResourceMark
a61af66fc99e Initial load duke parents: diff changeset	522 RC_TRACE_MESG(("adjust: name=%s",
a61af66fc99e Initial load duke parents: diff changeset	523 Klass::cast(old_method->method_holder())->external_name()));
a61af66fc99e Initial load duke parents: diff changeset	524 *trace_name_printed = true;
a61af66fc99e Initial load duke parents: diff changeset	525 }
a61af66fc99e Initial load duke parents: diff changeset	526 // RC_TRACE macro has an embedded ResourceMark
a61af66fc99e Initial load duke parents: diff changeset	527 RC_TRACE(0x00400000, ("cpc entry update: %s(%s)",
a61af66fc99e Initial load duke parents: diff changeset	528 new_method->name()->as_C_string(),
a61af66fc99e Initial load duke parents: diff changeset	529 new_method->signature()->as_C_string()));
a61af66fc99e Initial load duke parents: diff changeset	530 }
a61af66fc99e Initial load duke parents: diff changeset	531
a61af66fc99e Initial load duke parents: diff changeset	532 return true;
a61af66fc99e Initial load duke parents: diff changeset	533 }
a61af66fc99e Initial load duke parents: diff changeset	534
a61af66fc99e Initial load duke parents: diff changeset	535 return false;
a61af66fc99e Initial load duke parents: diff changeset	536 }
a61af66fc99e Initial load duke parents: diff changeset	537
a61af66fc99e Initial load duke parents: diff changeset	538 bool ConstantPoolCacheEntry::is_interesting_method_entry(klassOop k) {
a61af66fc99e Initial load duke parents: diff changeset	539 if (!is_method_entry()) {
a61af66fc99e Initial load duke parents: diff changeset	540 // not a method entry so not interesting by default
a61af66fc99e Initial load duke parents: diff changeset	541 return false;
a61af66fc99e Initial load duke parents: diff changeset	542 }
a61af66fc99e Initial load duke parents: diff changeset	543
a61af66fc99e Initial load duke parents: diff changeset	544 methodOop m = NULL;
a61af66fc99e Initial load duke parents: diff changeset	545 if (is_vfinal()) {
a61af66fc99e Initial load duke parents: diff changeset	546 // virtual and final so _f2 contains method ptr instead of vtable index
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	547 m = f2_as_vfinal_method();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	548 } else if (is_f1_null()) {
0 a61af66fc99e Initial load duke parents: diff changeset	549 // NULL _f1 means this is a virtual entry so also not interesting
a61af66fc99e Initial load duke parents: diff changeset	550 return false;
a61af66fc99e Initial load duke parents: diff changeset	551 } else {
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	552 oop f1 = _f1; // _f1 is volatile
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	553 if (!f1->is_method()) {
0 a61af66fc99e Initial load duke parents: diff changeset	554 // _f1 can also contain a klassOop for an interface
a61af66fc99e Initial load duke parents: diff changeset	555 return false;
a61af66fc99e Initial load duke parents: diff changeset	556 }
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5898 diff changeset	557 m = f1_as_method();
0 a61af66fc99e Initial load duke parents: diff changeset	558 }
a61af66fc99e Initial load duke parents: diff changeset	559
a61af66fc99e Initial load duke parents: diff changeset	560 assert(m != NULL && m->is_method(), "sanity check");
a61af66fc99e Initial load duke parents: diff changeset	561 if (m == NULL \|\| !m->is_method() \|\| m->method_holder() != k) {
a61af66fc99e Initial load duke parents: diff changeset	562 // robustness for above sanity checks or method is not in
a61af66fc99e Initial load duke parents: diff changeset	563 // the interesting class
a61af66fc99e Initial load duke parents: diff changeset	564 return false;
a61af66fc99e Initial load duke parents: diff changeset	565 }
a61af66fc99e Initial load duke parents: diff changeset	566
a61af66fc99e Initial load duke parents: diff changeset	567 // the method is in the interesting class so the entry is interesting
a61af66fc99e Initial load duke parents: diff changeset	568 return true;
a61af66fc99e Initial load duke parents: diff changeset	569 }
a61af66fc99e Initial load duke parents: diff changeset	570
a61af66fc99e Initial load duke parents: diff changeset	571 void ConstantPoolCacheEntry::print(outputStream* st, int index) const {
a61af66fc99e Initial load duke parents: diff changeset	572 // print separator
5898 f096e1b74d85 7148126: ConstantPoolCacheEntry::print prints to wrong stream dholmes parents: 3938 diff changeset	573 if (index == 0) st->print_cr(" -------------");
0 a61af66fc99e Initial load duke parents: diff changeset	574 // print entry
5898 f096e1b74d85 7148126: ConstantPoolCacheEntry::print prints to wrong stream dholmes parents: 3938 diff changeset	575 st->print("%3d ("PTR_FORMAT") ", index, (intptr_t)this);
726 be93aad57795 6655646: dynamic languages need dynamically linked call sites jrose parents: 196 diff changeset	576 if (is_secondary_entry())
5898 f096e1b74d85 7148126: ConstantPoolCacheEntry::print prints to wrong stream dholmes parents: 3938 diff changeset	577 st->print_cr("[%5d\|secondary]", main_entry_index());
726 be93aad57795 6655646: dynamic languages need dynamically linked call sites jrose parents: 196 diff changeset	578 else
5898 f096e1b74d85 7148126: ConstantPoolCacheEntry::print prints to wrong stream dholmes parents: 3938 diff changeset	579 st->print_cr("[%02x\|%02x\|%5d]", bytecode_2(), bytecode_1(), constant_pool_index());
f096e1b74d85 7148126: ConstantPoolCacheEntry::print prints to wrong stream dholmes parents: 3938 diff changeset	580 st->print_cr(" [ "PTR_FORMAT"]", (intptr_t)(oop)_f1);
f096e1b74d85 7148126: ConstantPoolCacheEntry::print prints to wrong stream dholmes parents: 3938 diff changeset	581 st->print_cr(" [ "PTR_FORMAT"]", (intptr_t)_f2);
f096e1b74d85 7148126: ConstantPoolCacheEntry::print prints to wrong stream dholmes parents: 3938 diff changeset	582 st->print_cr(" [ "PTR_FORMAT"]", (intptr_t)_flags);
f096e1b74d85 7148126: ConstantPoolCacheEntry::print prints to wrong stream dholmes parents: 3938 diff changeset	583 st->print_cr(" -------------");
0 a61af66fc99e Initial load duke parents: diff changeset	584 }
a61af66fc99e Initial load duke parents: diff changeset	585
a61af66fc99e Initial load duke parents: diff changeset	586 void ConstantPoolCacheEntry::verify(outputStream* st) const {
a61af66fc99e Initial load duke parents: diff changeset	587 // not implemented yet
a61af66fc99e Initial load duke parents: diff changeset	588 }
a61af66fc99e Initial load duke parents: diff changeset	589
a61af66fc99e Initial load duke parents: diff changeset	590 // Implementation of ConstantPoolCache
a61af66fc99e Initial load duke parents: diff changeset	591
a61af66fc99e Initial load duke parents: diff changeset	592 void constantPoolCacheOopDesc::initialize(intArray& inverse_index_map) {
a61af66fc99e Initial load duke parents: diff changeset	593 assert(inverse_index_map.length() == length(), "inverse index map must have same length as cache");
1059 389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638) jrose parents: 844 diff changeset	594 for (int i = 0; i < length(); i++) {
389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638) jrose parents: 844 diff changeset	595 ConstantPoolCacheEntry* e = entry_at(i);
389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638) jrose parents: 844 diff changeset	596 int original_index = inverse_index_map[i];
389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638) jrose parents: 844 diff changeset	597 if ((original_index & Rewriter::_secondary_entry_tag) != 0) {
389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638) jrose parents: 844 diff changeset	598 int main_index = (original_index - Rewriter::_secondary_entry_tag);
389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638) jrose parents: 844 diff changeset	599 assert(!entry_at(main_index)->is_secondary_entry(), "valid main index");
389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638) jrose parents: 844 diff changeset	600 e->initialize_secondary_entry(main_index);
389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638) jrose parents: 844 diff changeset	601 } else {
389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638) jrose parents: 844 diff changeset	602 e->initialize_entry(original_index);
389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638) jrose parents: 844 diff changeset	603 }
389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638) jrose parents: 844 diff changeset	604 assert(entry_at(i) == e, "sanity");
389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638) jrose parents: 844 diff changeset	605 }
0 a61af66fc99e Initial load duke parents: diff changeset	606 }
a61af66fc99e Initial load duke parents: diff changeset	607
a61af66fc99e Initial load duke parents: diff changeset	608 // RedefineClasses() API support:
a61af66fc99e Initial load duke parents: diff changeset	609 // If any entry of this constantPoolCache points to any of
a61af66fc99e Initial load duke parents: diff changeset	610 // old_methods, replace it with the corresponding new_method.
a61af66fc99e Initial load duke parents: diff changeset	611 void constantPoolCacheOopDesc::adjust_method_entries(methodOop* old_methods, methodOop* new_methods,
a61af66fc99e Initial load duke parents: diff changeset	612 int methods_length, bool * trace_name_printed) {
a61af66fc99e Initial load duke parents: diff changeset	613
a61af66fc99e Initial load duke parents: diff changeset	614 if (methods_length == 0) {
a61af66fc99e Initial load duke parents: diff changeset	615 // nothing to do if there are no methods
a61af66fc99e Initial load duke parents: diff changeset	616 return;
a61af66fc99e Initial load duke parents: diff changeset	617 }
a61af66fc99e Initial load duke parents: diff changeset	618
a61af66fc99e Initial load duke parents: diff changeset	619 // get shorthand for the interesting class
a61af66fc99e Initial load duke parents: diff changeset	620 klassOop old_holder = old_methods[0]->method_holder();
a61af66fc99e Initial load duke parents: diff changeset	621
a61af66fc99e Initial load duke parents: diff changeset	622 for (int i = 0; i < length(); i++) {
a61af66fc99e Initial load duke parents: diff changeset	623 if (!entry_at(i)->is_interesting_method_entry(old_holder)) {
a61af66fc99e Initial load duke parents: diff changeset	624 // skip uninteresting methods
a61af66fc99e Initial load duke parents: diff changeset	625 continue;
a61af66fc99e Initial load duke parents: diff changeset	626 }
a61af66fc99e Initial load duke parents: diff changeset	627
a61af66fc99e Initial load duke parents: diff changeset	628 // The constantPoolCache contains entries for several different
a61af66fc99e Initial load duke parents: diff changeset	629 // things, but we only care about methods. In fact, we only care
a61af66fc99e Initial load duke parents: diff changeset	630 // about methods in the same class as the one that contains the
a61af66fc99e Initial load duke parents: diff changeset	631 // old_methods. At this point, we have an interesting entry.
a61af66fc99e Initial load duke parents: diff changeset	632
a61af66fc99e Initial load duke parents: diff changeset	633 for (int j = 0; j < methods_length; j++) {
a61af66fc99e Initial load duke parents: diff changeset	634 methodOop old_method = old_methods[j];
a61af66fc99e Initial load duke parents: diff changeset	635 methodOop new_method = new_methods[j];
a61af66fc99e Initial load duke parents: diff changeset	636
a61af66fc99e Initial load duke parents: diff changeset	637 if (entry_at(i)->adjust_method_entry(old_method, new_method,
a61af66fc99e Initial load duke parents: diff changeset	638 trace_name_printed)) {
a61af66fc99e Initial load duke parents: diff changeset	639 // current old_method matched this entry and we updated it so
a61af66fc99e Initial load duke parents: diff changeset	640 // break out and get to the next interesting entry if there one
a61af66fc99e Initial load duke parents: diff changeset	641 break;
a61af66fc99e Initial load duke parents: diff changeset	642 }
a61af66fc99e Initial load duke parents: diff changeset	643 }
a61af66fc99e Initial load duke parents: diff changeset	644 }
a61af66fc99e Initial load duke parents: diff changeset	645 }

Mercurial > hg > graal-jvmci-8

annotate src/share/vm/oops/cpCacheOop.cpp @ 6266:1d7922586cf6