Thu, 09 Dec 2010 15:04:26 -0500
7004582: Add GetThisObject() function to JVMTI 1.2
Summary: Add 'GetThisObject' function
Reviewed-by: never, coleenp
twisti@1568 | 1 | /* |
trims@1907 | 2 | * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved. |
twisti@1568 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
twisti@1568 | 4 | * |
twisti@1568 | 5 | * This code is free software; you can redistribute it and/or modify it |
twisti@1568 | 6 | * under the terms of the GNU General Public License version 2 only, as |
twisti@1568 | 7 | * published by the Free Software Foundation. |
twisti@1568 | 8 | * |
twisti@1568 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
twisti@1568 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
twisti@1568 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
twisti@1568 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
twisti@1568 | 13 | * accompanied this code). |
twisti@1568 | 14 | * |
twisti@1568 | 15 | * You should have received a copy of the GNU General Public License version |
twisti@1568 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
twisti@1568 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
twisti@1568 | 18 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
twisti@1568 | 22 | * |
twisti@1568 | 23 | */ |
twisti@1568 | 24 | |
stefank@2314 | 25 | #include "precompiled.hpp" |
stefank@2314 | 26 | #include "interpreter/rewriter.hpp" |
stefank@2314 | 27 | #include "memory/oopFactory.hpp" |
stefank@2314 | 28 | #include "prims/methodHandleWalk.hpp" |
stefank@2314 | 29 | |
twisti@1568 | 30 | /* |
twisti@1568 | 31 | * JSR 292 reference implementation: method handle structure analysis |
twisti@1568 | 32 | */ |
twisti@1568 | 33 | |
twisti@1573 | 34 | |
twisti@1573 | 35 | // ----------------------------------------------------------------------------- |
twisti@1573 | 36 | // MethodHandleChain |
twisti@1573 | 37 | |
twisti@1568 | 38 | void MethodHandleChain::set_method_handle(Handle mh, TRAPS) { |
twisti@1568 | 39 | if (!java_dyn_MethodHandle::is_instance(mh())) lose("bad method handle", CHECK); |
twisti@1568 | 40 | |
twisti@1568 | 41 | // set current method handle and unpack partially |
twisti@1568 | 42 | _method_handle = mh; |
twisti@1568 | 43 | _is_last = false; |
twisti@1568 | 44 | _is_bound = false; |
twisti@1568 | 45 | _arg_slot = -1; |
twisti@1568 | 46 | _arg_type = T_VOID; |
twisti@1568 | 47 | _conversion = -1; |
twisti@1568 | 48 | _last_invoke = Bytecodes::_nop; //arbitrary non-garbage |
twisti@1568 | 49 | |
twisti@1568 | 50 | if (sun_dyn_DirectMethodHandle::is_instance(mh())) { |
twisti@1568 | 51 | set_last_method(mh(), THREAD); |
twisti@1568 | 52 | return; |
twisti@1568 | 53 | } |
twisti@1568 | 54 | if (sun_dyn_AdapterMethodHandle::is_instance(mh())) { |
twisti@1568 | 55 | _conversion = AdapterMethodHandle_conversion(); |
twisti@1568 | 56 | assert(_conversion != -1, "bad conv value"); |
twisti@1568 | 57 | assert(sun_dyn_BoundMethodHandle::is_instance(mh()), "also BMH"); |
twisti@1568 | 58 | } |
twisti@1568 | 59 | if (sun_dyn_BoundMethodHandle::is_instance(mh())) { |
twisti@1568 | 60 | if (!is_adapter()) // keep AMH and BMH separate in this model |
twisti@1568 | 61 | _is_bound = true; |
twisti@1568 | 62 | _arg_slot = BoundMethodHandle_vmargslot(); |
twisti@1568 | 63 | oop target = MethodHandle_vmtarget_oop(); |
twisti@1568 | 64 | if (!is_bound() || java_dyn_MethodHandle::is_instance(target)) { |
twisti@1568 | 65 | _arg_type = compute_bound_arg_type(target, NULL, _arg_slot, CHECK); |
twisti@1568 | 66 | } else if (target != NULL && target->is_method()) { |
twisti@1573 | 67 | methodOop m = (methodOop) target; |
twisti@1573 | 68 | _arg_type = compute_bound_arg_type(NULL, m, _arg_slot, CHECK); |
twisti@1568 | 69 | set_last_method(mh(), CHECK); |
twisti@1568 | 70 | } else { |
twisti@1568 | 71 | _is_bound = false; // lose! |
twisti@1568 | 72 | } |
twisti@1568 | 73 | } |
twisti@1568 | 74 | if (is_bound() && _arg_type == T_VOID) { |
twisti@1568 | 75 | lose("bad vmargslot", CHECK); |
twisti@1568 | 76 | } |
twisti@1568 | 77 | if (!is_bound() && !is_adapter()) { |
twisti@1568 | 78 | lose("unrecognized MH type", CHECK); |
twisti@1568 | 79 | } |
twisti@1568 | 80 | } |
twisti@1568 | 81 | |
twisti@1573 | 82 | |
twisti@1568 | 83 | void MethodHandleChain::set_last_method(oop target, TRAPS) { |
twisti@1568 | 84 | _is_last = true; |
twisti@1568 | 85 | klassOop receiver_limit_oop = NULL; |
twisti@1568 | 86 | int flags = 0; |
twisti@1568 | 87 | methodOop m = MethodHandles::decode_method(target, receiver_limit_oop, flags); |
twisti@1568 | 88 | _last_method = methodHandle(THREAD, m); |
twisti@1568 | 89 | if ((flags & MethodHandles::_dmf_has_receiver) == 0) |
twisti@1568 | 90 | _last_invoke = Bytecodes::_invokestatic; |
twisti@1568 | 91 | else if ((flags & MethodHandles::_dmf_does_dispatch) == 0) |
twisti@1568 | 92 | _last_invoke = Bytecodes::_invokespecial; |
twisti@1568 | 93 | else if ((flags & MethodHandles::_dmf_from_interface) != 0) |
twisti@1568 | 94 | _last_invoke = Bytecodes::_invokeinterface; |
twisti@1568 | 95 | else |
twisti@1568 | 96 | _last_invoke = Bytecodes::_invokevirtual; |
twisti@1568 | 97 | } |
twisti@1568 | 98 | |
twisti@1573 | 99 | |
twisti@1568 | 100 | BasicType MethodHandleChain::compute_bound_arg_type(oop target, methodOop m, int arg_slot, TRAPS) { |
twisti@1568 | 101 | // There is no direct indication of whether the argument is primitive or not. |
twisti@1568 | 102 | // It is implied by the _vmentry code, and by the MethodType of the target. |
twisti@1568 | 103 | // FIXME: Make it explicit MethodHandleImpl refactors out from MethodHandle |
twisti@1568 | 104 | BasicType arg_type = T_VOID; |
twisti@1568 | 105 | if (target != NULL) { |
twisti@1568 | 106 | oop mtype = java_dyn_MethodHandle::type(target); |
twisti@1568 | 107 | int arg_num = MethodHandles::argument_slot_to_argnum(mtype, arg_slot); |
twisti@1568 | 108 | if (arg_num >= 0) { |
twisti@1568 | 109 | oop ptype = java_dyn_MethodType::ptype(mtype, arg_num); |
twisti@1568 | 110 | arg_type = java_lang_Class::as_BasicType(ptype); |
twisti@1568 | 111 | } |
twisti@1568 | 112 | } else if (m != NULL) { |
twisti@1568 | 113 | // figure out the argument type from the slot |
twisti@1568 | 114 | // FIXME: make this explicit in the MH |
twisti@1568 | 115 | int cur_slot = m->size_of_parameters(); |
twisti@1568 | 116 | if (arg_slot >= cur_slot) |
twisti@1568 | 117 | return T_VOID; |
twisti@1568 | 118 | if (!m->is_static()) { |
twisti@1568 | 119 | cur_slot -= type2size[T_OBJECT]; |
twisti@1568 | 120 | if (cur_slot == arg_slot) |
twisti@1568 | 121 | return T_OBJECT; |
twisti@1568 | 122 | } |
twisti@1568 | 123 | for (SignatureStream ss(m->signature()); !ss.is_done(); ss.next()) { |
twisti@1568 | 124 | BasicType bt = ss.type(); |
twisti@1568 | 125 | cur_slot -= type2size[bt]; |
twisti@1568 | 126 | if (cur_slot <= arg_slot) { |
twisti@1568 | 127 | if (cur_slot == arg_slot) |
twisti@1568 | 128 | arg_type = bt; |
twisti@1568 | 129 | break; |
twisti@1568 | 130 | } |
twisti@1568 | 131 | } |
twisti@1568 | 132 | } |
twisti@1568 | 133 | if (arg_type == T_ARRAY) |
twisti@1568 | 134 | arg_type = T_OBJECT; |
twisti@1568 | 135 | return arg_type; |
twisti@1568 | 136 | } |
twisti@1568 | 137 | |
twisti@1573 | 138 | |
twisti@1568 | 139 | void MethodHandleChain::lose(const char* msg, TRAPS) { |
twisti@1573 | 140 | assert(false, "lose"); |
twisti@1568 | 141 | _lose_message = msg; |
twisti@1568 | 142 | if (!THREAD->is_Java_thread() || ((JavaThread*)THREAD)->thread_state() != _thread_in_vm) { |
twisti@1568 | 143 | // throw a preallocated exception |
twisti@1568 | 144 | THROW_OOP(Universe::virtual_machine_error_instance()); |
twisti@1568 | 145 | } |
twisti@1568 | 146 | THROW_MSG(vmSymbols::java_lang_InternalError(), msg); |
twisti@1568 | 147 | } |
twisti@1568 | 148 | |
twisti@1573 | 149 | |
twisti@1573 | 150 | // ----------------------------------------------------------------------------- |
twisti@1573 | 151 | // MethodHandleWalker |
twisti@1573 | 152 | |
twisti@1568 | 153 | Bytecodes::Code MethodHandleWalker::conversion_code(BasicType src, BasicType dest) { |
twisti@1568 | 154 | if (is_subword_type(src)) { |
twisti@1568 | 155 | src = T_INT; // all subword src types act like int |
twisti@1568 | 156 | } |
twisti@1568 | 157 | if (src == dest) { |
twisti@1568 | 158 | return Bytecodes::_nop; |
twisti@1568 | 159 | } |
twisti@1568 | 160 | |
twisti@1568 | 161 | #define SRC_DEST(s,d) (((int)(s) << 4) + (int)(d)) |
twisti@1568 | 162 | switch (SRC_DEST(src, dest)) { |
twisti@1568 | 163 | case SRC_DEST(T_INT, T_LONG): return Bytecodes::_i2l; |
twisti@1568 | 164 | case SRC_DEST(T_INT, T_FLOAT): return Bytecodes::_i2f; |
twisti@1568 | 165 | case SRC_DEST(T_INT, T_DOUBLE): return Bytecodes::_i2d; |
twisti@1568 | 166 | case SRC_DEST(T_INT, T_BYTE): return Bytecodes::_i2b; |
twisti@1568 | 167 | case SRC_DEST(T_INT, T_CHAR): return Bytecodes::_i2c; |
twisti@1568 | 168 | case SRC_DEST(T_INT, T_SHORT): return Bytecodes::_i2s; |
twisti@1568 | 169 | |
twisti@1568 | 170 | case SRC_DEST(T_LONG, T_INT): return Bytecodes::_l2i; |
twisti@1568 | 171 | case SRC_DEST(T_LONG, T_FLOAT): return Bytecodes::_l2f; |
twisti@1568 | 172 | case SRC_DEST(T_LONG, T_DOUBLE): return Bytecodes::_l2d; |
twisti@1568 | 173 | |
twisti@1568 | 174 | case SRC_DEST(T_FLOAT, T_INT): return Bytecodes::_f2i; |
twisti@1568 | 175 | case SRC_DEST(T_FLOAT, T_LONG): return Bytecodes::_f2l; |
twisti@1568 | 176 | case SRC_DEST(T_FLOAT, T_DOUBLE): return Bytecodes::_f2d; |
twisti@1568 | 177 | |
twisti@1568 | 178 | case SRC_DEST(T_DOUBLE, T_INT): return Bytecodes::_d2i; |
twisti@1568 | 179 | case SRC_DEST(T_DOUBLE, T_LONG): return Bytecodes::_d2l; |
twisti@1568 | 180 | case SRC_DEST(T_DOUBLE, T_FLOAT): return Bytecodes::_d2f; |
twisti@1568 | 181 | } |
twisti@1568 | 182 | #undef SRC_DEST |
twisti@1568 | 183 | |
twisti@1568 | 184 | // cannot do it in one step, or at all |
twisti@1568 | 185 | return Bytecodes::_illegal; |
twisti@1568 | 186 | } |
twisti@1568 | 187 | |
twisti@1573 | 188 | |
twisti@1573 | 189 | // ----------------------------------------------------------------------------- |
twisti@1573 | 190 | // MethodHandleWalker::walk |
twisti@1573 | 191 | // |
twisti@1568 | 192 | MethodHandleWalker::ArgToken |
twisti@1568 | 193 | MethodHandleWalker::walk(TRAPS) { |
twisti@1573 | 194 | ArgToken empty = ArgToken(); // Empty return value. |
twisti@1573 | 195 | |
twisti@1573 | 196 | walk_incoming_state(CHECK_(empty)); |
twisti@1568 | 197 | |
twisti@1568 | 198 | for (;;) { |
twisti@1568 | 199 | set_method_handle(chain().method_handle_oop()); |
twisti@1568 | 200 | |
twisti@1568 | 201 | assert(_outgoing_argc == argument_count_slow(), "empty slots under control"); |
twisti@1568 | 202 | |
twisti@1568 | 203 | if (chain().is_adapter()) { |
twisti@1568 | 204 | int conv_op = chain().adapter_conversion_op(); |
twisti@1568 | 205 | int arg_slot = chain().adapter_arg_slot(); |
twisti@1568 | 206 | SlotState* arg_state = slot_state(arg_slot); |
twisti@1568 | 207 | if (arg_state == NULL |
twisti@1568 | 208 | && conv_op > sun_dyn_AdapterMethodHandle::OP_RETYPE_RAW) { |
twisti@1573 | 209 | lose("bad argument index", CHECK_(empty)); |
twisti@1568 | 210 | } |
twisti@1568 | 211 | |
twisti@1568 | 212 | // perform the adapter action |
twisti@1568 | 213 | switch (chain().adapter_conversion_op()) { |
twisti@1568 | 214 | case sun_dyn_AdapterMethodHandle::OP_RETYPE_ONLY: |
twisti@1568 | 215 | // No changes to arguments; pass the bits through. |
twisti@1568 | 216 | break; |
twisti@1568 | 217 | |
twisti@1573 | 218 | case sun_dyn_AdapterMethodHandle::OP_RETYPE_RAW: { |
twisti@1573 | 219 | // To keep the verifier happy, emit bitwise ("raw") conversions as needed. |
twisti@1573 | 220 | // See MethodHandles::same_basic_type_for_arguments for allowed conversions. |
twisti@1573 | 221 | Handle incoming_mtype(THREAD, chain().method_type_oop()); |
twisti@1573 | 222 | oop outgoing_mh_oop = chain().vmtarget_oop(); |
twisti@1573 | 223 | if (!java_dyn_MethodHandle::is_instance(outgoing_mh_oop)) |
twisti@1573 | 224 | lose("outgoing target not a MethodHandle", CHECK_(empty)); |
twisti@1573 | 225 | Handle outgoing_mtype(THREAD, java_dyn_MethodHandle::type(outgoing_mh_oop)); |
twisti@1573 | 226 | outgoing_mh_oop = NULL; // GC safety |
twisti@1573 | 227 | |
twisti@1573 | 228 | int nptypes = java_dyn_MethodType::ptype_count(outgoing_mtype()); |
twisti@1573 | 229 | if (nptypes != java_dyn_MethodType::ptype_count(incoming_mtype())) |
twisti@1573 | 230 | lose("incoming and outgoing parameter count do not agree", CHECK_(empty)); |
twisti@1573 | 231 | |
twisti@1573 | 232 | for (int i = 0, slot = _outgoing.length() - 1; slot >= 0; slot--) { |
twisti@1573 | 233 | SlotState* arg_state = slot_state(slot); |
twisti@1573 | 234 | if (arg_state->_type == T_VOID) continue; |
twisti@1573 | 235 | ArgToken arg = _outgoing.at(slot)._arg; |
twisti@1573 | 236 | |
twisti@1573 | 237 | klassOop in_klass = NULL; |
twisti@1573 | 238 | klassOop out_klass = NULL; |
twisti@1573 | 239 | BasicType inpbt = java_lang_Class::as_BasicType(java_dyn_MethodType::ptype(incoming_mtype(), i), &in_klass); |
twisti@1573 | 240 | BasicType outpbt = java_lang_Class::as_BasicType(java_dyn_MethodType::ptype(outgoing_mtype(), i), &out_klass); |
twisti@1573 | 241 | assert(inpbt == arg.basic_type(), "sanity"); |
twisti@1573 | 242 | |
twisti@1573 | 243 | if (inpbt != outpbt) { |
twisti@1573 | 244 | vmIntrinsics::ID iid = vmIntrinsics::for_raw_conversion(inpbt, outpbt); |
twisti@1573 | 245 | if (iid == vmIntrinsics::_none) { |
twisti@1573 | 246 | lose("no raw conversion method", CHECK_(empty)); |
twisti@1573 | 247 | } |
twisti@1573 | 248 | ArgToken arglist[2]; |
twisti@1573 | 249 | arglist[0] = arg; // outgoing 'this' |
twisti@1573 | 250 | arglist[1] = ArgToken(); // sentinel |
twisti@1573 | 251 | arg = make_invoke(NULL, iid, Bytecodes::_invokestatic, false, 1, &arglist[0], CHECK_(empty)); |
twisti@1573 | 252 | change_argument(inpbt, slot, outpbt, arg); |
twisti@1573 | 253 | } |
twisti@1573 | 254 | |
twisti@1573 | 255 | i++; // We need to skip void slots at the top of the loop. |
twisti@1573 | 256 | } |
twisti@1573 | 257 | |
twisti@1573 | 258 | BasicType inrbt = java_lang_Class::as_BasicType(java_dyn_MethodType::rtype(incoming_mtype())); |
twisti@1573 | 259 | BasicType outrbt = java_lang_Class::as_BasicType(java_dyn_MethodType::rtype(outgoing_mtype())); |
twisti@1573 | 260 | if (inrbt != outrbt) { |
twisti@1573 | 261 | if (inrbt == T_INT && outrbt == T_VOID) { |
twisti@1573 | 262 | // See comments in MethodHandles::same_basic_type_for_arguments. |
twisti@1573 | 263 | } else { |
twisti@1573 | 264 | assert(false, "IMPLEMENT ME"); |
twisti@1573 | 265 | lose("no raw conversion method", CHECK_(empty)); |
twisti@1573 | 266 | } |
twisti@1573 | 267 | } |
twisti@1573 | 268 | break; |
twisti@1573 | 269 | } |
twisti@1573 | 270 | |
twisti@1568 | 271 | case sun_dyn_AdapterMethodHandle::OP_CHECK_CAST: { |
twisti@1568 | 272 | // checkcast the Nth outgoing argument in place |
twisti@1568 | 273 | klassOop dest_klass = NULL; |
twisti@1568 | 274 | BasicType dest = java_lang_Class::as_BasicType(chain().adapter_arg_oop(), &dest_klass); |
twisti@1568 | 275 | assert(dest == T_OBJECT, ""); |
twisti@1568 | 276 | assert(dest == arg_state->_type, ""); |
twisti@1573 | 277 | ArgToken arg = arg_state->_arg; |
twisti@1573 | 278 | ArgToken new_arg = make_conversion(T_OBJECT, dest_klass, Bytecodes::_checkcast, arg, CHECK_(empty)); |
twisti@1573 | 279 | assert(arg.index() == new_arg.index(), "should be the same index"); |
twisti@1568 | 280 | debug_only(dest_klass = (klassOop)badOop); |
twisti@1568 | 281 | break; |
twisti@1568 | 282 | } |
twisti@1568 | 283 | |
twisti@1568 | 284 | case sun_dyn_AdapterMethodHandle::OP_PRIM_TO_PRIM: { |
twisti@1568 | 285 | // i2l, etc., on the Nth outgoing argument in place |
twisti@1568 | 286 | BasicType src = chain().adapter_conversion_src_type(), |
twisti@1568 | 287 | dest = chain().adapter_conversion_dest_type(); |
twisti@1568 | 288 | Bytecodes::Code bc = conversion_code(src, dest); |
twisti@1568 | 289 | ArgToken arg = arg_state->_arg; |
twisti@1568 | 290 | if (bc == Bytecodes::_nop) { |
twisti@1568 | 291 | break; |
twisti@1568 | 292 | } else if (bc != Bytecodes::_illegal) { |
twisti@1573 | 293 | arg = make_conversion(dest, NULL, bc, arg, CHECK_(empty)); |
twisti@1568 | 294 | } else if (is_subword_type(dest)) { |
twisti@1568 | 295 | bc = conversion_code(src, T_INT); |
twisti@1568 | 296 | if (bc != Bytecodes::_illegal) { |
twisti@1573 | 297 | arg = make_conversion(dest, NULL, bc, arg, CHECK_(empty)); |
twisti@1568 | 298 | bc = conversion_code(T_INT, dest); |
twisti@1573 | 299 | arg = make_conversion(dest, NULL, bc, arg, CHECK_(empty)); |
twisti@1568 | 300 | } |
twisti@1568 | 301 | } |
twisti@1568 | 302 | if (bc == Bytecodes::_illegal) { |
twisti@1573 | 303 | lose("bad primitive conversion", CHECK_(empty)); |
twisti@1568 | 304 | } |
twisti@1568 | 305 | change_argument(src, arg_slot, dest, arg); |
twisti@1568 | 306 | break; |
twisti@1568 | 307 | } |
twisti@1568 | 308 | |
twisti@1568 | 309 | case sun_dyn_AdapterMethodHandle::OP_REF_TO_PRIM: { |
twisti@1568 | 310 | // checkcast to wrapper type & call intValue, etc. |
twisti@1568 | 311 | BasicType dest = chain().adapter_conversion_dest_type(); |
twisti@1568 | 312 | ArgToken arg = arg_state->_arg; |
twisti@1568 | 313 | arg = make_conversion(T_OBJECT, SystemDictionary::box_klass(dest), |
twisti@1573 | 314 | Bytecodes::_checkcast, arg, CHECK_(empty)); |
twisti@1568 | 315 | vmIntrinsics::ID unboxer = vmIntrinsics::for_unboxing(dest); |
twisti@1568 | 316 | if (unboxer == vmIntrinsics::_none) { |
twisti@1573 | 317 | lose("no unboxing method", CHECK_(empty)); |
twisti@1568 | 318 | } |
twisti@1568 | 319 | ArgToken arglist[2]; |
twisti@1573 | 320 | arglist[0] = arg; // outgoing 'this' |
twisti@1573 | 321 | arglist[1] = ArgToken(); // sentinel |
twisti@1573 | 322 | arg = make_invoke(NULL, unboxer, Bytecodes::_invokevirtual, false, 1, &arglist[0], CHECK_(empty)); |
twisti@1568 | 323 | change_argument(T_OBJECT, arg_slot, dest, arg); |
twisti@1568 | 324 | break; |
twisti@1568 | 325 | } |
twisti@1568 | 326 | |
twisti@1568 | 327 | case sun_dyn_AdapterMethodHandle::OP_PRIM_TO_REF: { |
twisti@1568 | 328 | // call wrapper type.valueOf |
twisti@1568 | 329 | BasicType src = chain().adapter_conversion_src_type(); |
twisti@1568 | 330 | ArgToken arg = arg_state->_arg; |
twisti@1568 | 331 | vmIntrinsics::ID boxer = vmIntrinsics::for_boxing(src); |
twisti@1568 | 332 | if (boxer == vmIntrinsics::_none) { |
twisti@1573 | 333 | lose("no boxing method", CHECK_(empty)); |
twisti@1568 | 334 | } |
twisti@1568 | 335 | ArgToken arglist[2]; |
twisti@1573 | 336 | arglist[0] = arg; // outgoing value |
twisti@1573 | 337 | arglist[1] = ArgToken(); // sentinel |
jrose@2148 | 338 | arg = make_invoke(NULL, boxer, Bytecodes::_invokevirtual, false, 1, &arglist[0], CHECK_(empty)); |
twisti@1568 | 339 | change_argument(src, arg_slot, T_OBJECT, arg); |
twisti@1568 | 340 | break; |
twisti@1568 | 341 | } |
twisti@1568 | 342 | |
twisti@1568 | 343 | case sun_dyn_AdapterMethodHandle::OP_SWAP_ARGS: { |
twisti@1568 | 344 | int dest_arg_slot = chain().adapter_conversion_vminfo(); |
twisti@1568 | 345 | if (!slot_has_argument(dest_arg_slot)) { |
twisti@1573 | 346 | lose("bad swap index", CHECK_(empty)); |
twisti@1568 | 347 | } |
twisti@1568 | 348 | // a simple swap between two arguments |
twisti@1568 | 349 | SlotState* dest_arg_state = slot_state(dest_arg_slot); |
twisti@1568 | 350 | SlotState temp = (*dest_arg_state); |
twisti@1568 | 351 | (*dest_arg_state) = (*arg_state); |
twisti@1568 | 352 | (*arg_state) = temp; |
twisti@1568 | 353 | break; |
twisti@1568 | 354 | } |
twisti@1568 | 355 | |
twisti@1568 | 356 | case sun_dyn_AdapterMethodHandle::OP_ROT_ARGS: { |
twisti@1568 | 357 | int dest_arg_slot = chain().adapter_conversion_vminfo(); |
twisti@1568 | 358 | if (!slot_has_argument(dest_arg_slot) || arg_slot == dest_arg_slot) { |
twisti@1573 | 359 | lose("bad rotate index", CHECK_(empty)); |
twisti@1568 | 360 | } |
twisti@1568 | 361 | SlotState* dest_arg_state = slot_state(dest_arg_slot); |
twisti@1568 | 362 | // Rotate the source argument (plus following N slots) into the |
twisti@1568 | 363 | // position occupied by the dest argument (plus following N slots). |
twisti@1568 | 364 | int rotate_count = type2size[dest_arg_state->_type]; |
twisti@1568 | 365 | // (no other rotate counts are currently supported) |
twisti@1568 | 366 | if (arg_slot < dest_arg_slot) { |
twisti@1568 | 367 | for (int i = 0; i < rotate_count; i++) { |
twisti@1568 | 368 | SlotState temp = _outgoing.at(arg_slot); |
twisti@1568 | 369 | _outgoing.remove_at(arg_slot); |
twisti@1568 | 370 | _outgoing.insert_before(dest_arg_slot + rotate_count - 1, temp); |
twisti@1568 | 371 | } |
twisti@1568 | 372 | } else { // arg_slot > dest_arg_slot |
twisti@1568 | 373 | for (int i = 0; i < rotate_count; i++) { |
twisti@1568 | 374 | SlotState temp = _outgoing.at(arg_slot + rotate_count - 1); |
twisti@1568 | 375 | _outgoing.remove_at(arg_slot + rotate_count - 1); |
twisti@1568 | 376 | _outgoing.insert_before(dest_arg_slot, temp); |
twisti@1568 | 377 | } |
twisti@1568 | 378 | } |
twisti@1568 | 379 | break; |
twisti@1568 | 380 | } |
twisti@1568 | 381 | |
twisti@1568 | 382 | case sun_dyn_AdapterMethodHandle::OP_DUP_ARGS: { |
twisti@1568 | 383 | int dup_slots = chain().adapter_conversion_stack_pushes(); |
twisti@1568 | 384 | if (dup_slots <= 0) { |
twisti@1573 | 385 | lose("bad dup count", CHECK_(empty)); |
twisti@1568 | 386 | } |
twisti@1568 | 387 | for (int i = 0; i < dup_slots; i++) { |
twisti@1568 | 388 | SlotState* dup = slot_state(arg_slot + 2*i); |
twisti@1568 | 389 | if (dup == NULL) break; // safety net |
twisti@1568 | 390 | if (dup->_type != T_VOID) _outgoing_argc += 1; |
twisti@1568 | 391 | _outgoing.insert_before(i, (*dup)); |
twisti@1568 | 392 | } |
twisti@1568 | 393 | break; |
twisti@1568 | 394 | } |
twisti@1568 | 395 | |
twisti@1568 | 396 | case sun_dyn_AdapterMethodHandle::OP_DROP_ARGS: { |
twisti@1568 | 397 | int drop_slots = -chain().adapter_conversion_stack_pushes(); |
twisti@1568 | 398 | if (drop_slots <= 0) { |
twisti@1573 | 399 | lose("bad drop count", CHECK_(empty)); |
twisti@1568 | 400 | } |
twisti@1568 | 401 | for (int i = 0; i < drop_slots; i++) { |
twisti@1568 | 402 | SlotState* drop = slot_state(arg_slot); |
twisti@1568 | 403 | if (drop == NULL) break; // safety net |
twisti@1568 | 404 | if (drop->_type != T_VOID) _outgoing_argc -= 1; |
twisti@1568 | 405 | _outgoing.remove_at(arg_slot); |
twisti@1568 | 406 | } |
twisti@1568 | 407 | break; |
twisti@1568 | 408 | } |
twisti@1568 | 409 | |
twisti@1568 | 410 | case sun_dyn_AdapterMethodHandle::OP_COLLECT_ARGS: { //NYI, may GC |
twisti@1573 | 411 | lose("unimplemented", CHECK_(empty)); |
twisti@1568 | 412 | break; |
twisti@1568 | 413 | } |
twisti@1568 | 414 | |
twisti@1568 | 415 | case sun_dyn_AdapterMethodHandle::OP_SPREAD_ARGS: { |
twisti@1568 | 416 | klassOop array_klass_oop = NULL; |
twisti@1568 | 417 | BasicType array_type = java_lang_Class::as_BasicType(chain().adapter_arg_oop(), |
twisti@1568 | 418 | &array_klass_oop); |
twisti@1568 | 419 | assert(array_type == T_OBJECT, ""); |
twisti@1568 | 420 | assert(Klass::cast(array_klass_oop)->oop_is_array(), ""); |
twisti@1568 | 421 | arrayKlassHandle array_klass(THREAD, array_klass_oop); |
twisti@1568 | 422 | debug_only(array_klass_oop = (klassOop)badOop); |
twisti@1568 | 423 | |
twisti@1568 | 424 | klassOop element_klass_oop = NULL; |
twisti@1568 | 425 | BasicType element_type = java_lang_Class::as_BasicType(array_klass->component_mirror(), |
twisti@1568 | 426 | &element_klass_oop); |
twisti@1568 | 427 | KlassHandle element_klass(THREAD, element_klass_oop); |
twisti@1568 | 428 | debug_only(element_klass_oop = (klassOop)badOop); |
twisti@1568 | 429 | |
twisti@1568 | 430 | // Fetch the argument, which we will cast to the required array type. |
twisti@1568 | 431 | assert(arg_state->_type == T_OBJECT, ""); |
twisti@1568 | 432 | ArgToken array_arg = arg_state->_arg; |
twisti@1573 | 433 | array_arg = make_conversion(T_OBJECT, array_klass(), Bytecodes::_checkcast, array_arg, CHECK_(empty)); |
twisti@1573 | 434 | change_argument(T_OBJECT, arg_slot, T_VOID, ArgToken(tt_void)); |
twisti@1568 | 435 | |
twisti@1568 | 436 | // Check the required length. |
twisti@1568 | 437 | int spread_slots = 1 + chain().adapter_conversion_stack_pushes(); |
twisti@1568 | 438 | int spread_length = spread_slots; |
twisti@1568 | 439 | if (type2size[element_type] == 2) { |
twisti@1568 | 440 | if (spread_slots % 2 != 0) spread_slots = -1; // force error |
twisti@1568 | 441 | spread_length = spread_slots / 2; |
twisti@1568 | 442 | } |
twisti@1568 | 443 | if (spread_slots < 0) { |
twisti@1573 | 444 | lose("bad spread length", CHECK_(empty)); |
twisti@1568 | 445 | } |
twisti@1568 | 446 | |
twisti@1568 | 447 | jvalue length_jvalue; length_jvalue.i = spread_length; |
twisti@1573 | 448 | ArgToken length_arg = make_prim_constant(T_INT, &length_jvalue, CHECK_(empty)); |
twisti@1568 | 449 | // Call a built-in method known to the JVM to validate the length. |
twisti@1568 | 450 | ArgToken arglist[3]; |
twisti@1573 | 451 | arglist[0] = array_arg; // value to check |
twisti@1573 | 452 | arglist[1] = length_arg; // length to check |
twisti@1573 | 453 | arglist[2] = ArgToken(); // sentinel |
twisti@1568 | 454 | make_invoke(NULL, vmIntrinsics::_checkSpreadArgument, |
twisti@1573 | 455 | Bytecodes::_invokestatic, false, 3, &arglist[0], CHECK_(empty)); |
twisti@1568 | 456 | |
twisti@1568 | 457 | // Spread out the array elements. |
twisti@1568 | 458 | Bytecodes::Code aload_op = Bytecodes::_aaload; |
twisti@1568 | 459 | if (element_type != T_OBJECT) { |
twisti@1573 | 460 | lose("primitive array NYI", CHECK_(empty)); |
twisti@1568 | 461 | } |
twisti@1568 | 462 | int ap = arg_slot; |
twisti@1568 | 463 | for (int i = 0; i < spread_length; i++) { |
twisti@1568 | 464 | jvalue offset_jvalue; offset_jvalue.i = i; |
twisti@1573 | 465 | ArgToken offset_arg = make_prim_constant(T_INT, &offset_jvalue, CHECK_(empty)); |
twisti@1573 | 466 | ArgToken element_arg = make_fetch(element_type, element_klass(), aload_op, array_arg, offset_arg, CHECK_(empty)); |
twisti@1568 | 467 | change_argument(T_VOID, ap, element_type, element_arg); |
twisti@1568 | 468 | ap += type2size[element_type]; |
twisti@1568 | 469 | } |
twisti@1568 | 470 | break; |
twisti@1568 | 471 | } |
twisti@1568 | 472 | |
twisti@1568 | 473 | case sun_dyn_AdapterMethodHandle::OP_FLYBY: //NYI, runs Java code |
twisti@1568 | 474 | case sun_dyn_AdapterMethodHandle::OP_RICOCHET: //NYI, runs Java code |
twisti@1573 | 475 | lose("unimplemented", CHECK_(empty)); |
twisti@1568 | 476 | break; |
twisti@1568 | 477 | |
twisti@1568 | 478 | default: |
twisti@1573 | 479 | lose("bad adapter conversion", CHECK_(empty)); |
twisti@1568 | 480 | break; |
twisti@1568 | 481 | } |
twisti@1568 | 482 | } |
twisti@1568 | 483 | |
twisti@1568 | 484 | if (chain().is_bound()) { |
twisti@1568 | 485 | // push a new argument |
twisti@1568 | 486 | BasicType arg_type = chain().bound_arg_type(); |
twisti@1568 | 487 | jint arg_slot = chain().bound_arg_slot(); |
twisti@1568 | 488 | oop arg_oop = chain().bound_arg_oop(); |
twisti@1573 | 489 | ArgToken arg; |
twisti@1568 | 490 | if (arg_type == T_OBJECT) { |
twisti@1573 | 491 | arg = make_oop_constant(arg_oop, CHECK_(empty)); |
twisti@1568 | 492 | } else { |
twisti@1568 | 493 | jvalue arg_value; |
twisti@1568 | 494 | BasicType bt = java_lang_boxing_object::get_value(arg_oop, &arg_value); |
twisti@1568 | 495 | if (bt == arg_type) { |
twisti@1573 | 496 | arg = make_prim_constant(arg_type, &arg_value, CHECK_(empty)); |
twisti@1568 | 497 | } else { |
twisti@1573 | 498 | lose("bad bound value", CHECK_(empty)); |
twisti@1568 | 499 | } |
twisti@1568 | 500 | } |
twisti@1568 | 501 | debug_only(arg_oop = badOop); |
twisti@1568 | 502 | change_argument(T_VOID, arg_slot, arg_type, arg); |
twisti@1568 | 503 | } |
twisti@1568 | 504 | |
twisti@1568 | 505 | // this test must come after the body of the loop |
twisti@1568 | 506 | if (!chain().is_last()) { |
twisti@1573 | 507 | chain().next(CHECK_(empty)); |
twisti@1568 | 508 | } else { |
twisti@1568 | 509 | break; |
twisti@1568 | 510 | } |
twisti@1568 | 511 | } |
twisti@1568 | 512 | |
twisti@1568 | 513 | // finish the sequence with a tail-call to the ultimate target |
twisti@1568 | 514 | // parameters are passed in logical order (recv 1st), not slot order |
twisti@1568 | 515 | ArgToken* arglist = NEW_RESOURCE_ARRAY(ArgToken, _outgoing.length() + 1); |
twisti@1568 | 516 | int ap = 0; |
twisti@1568 | 517 | for (int i = _outgoing.length() - 1; i >= 0; i--) { |
twisti@1568 | 518 | SlotState* arg_state = slot_state(i); |
twisti@1568 | 519 | if (arg_state->_type == T_VOID) continue; |
twisti@1568 | 520 | arglist[ap++] = _outgoing.at(i)._arg; |
twisti@1568 | 521 | } |
twisti@1568 | 522 | assert(ap == _outgoing_argc, ""); |
twisti@1573 | 523 | arglist[ap] = ArgToken(); // add a sentinel, for the sake of asserts |
twisti@1568 | 524 | return make_invoke(chain().last_method_oop(), |
twisti@1568 | 525 | vmIntrinsics::_none, |
twisti@1568 | 526 | chain().last_invoke_code(), true, |
twisti@1568 | 527 | ap, arglist, THREAD); |
twisti@1568 | 528 | } |
twisti@1568 | 529 | |
twisti@1573 | 530 | |
twisti@1573 | 531 | // ----------------------------------------------------------------------------- |
twisti@1573 | 532 | // MethodHandleWalker::walk_incoming_state |
twisti@1573 | 533 | // |
twisti@1568 | 534 | void MethodHandleWalker::walk_incoming_state(TRAPS) { |
twisti@1568 | 535 | Handle mtype(THREAD, chain().method_type_oop()); |
twisti@1568 | 536 | int nptypes = java_dyn_MethodType::ptype_count(mtype()); |
twisti@1568 | 537 | _outgoing_argc = nptypes; |
twisti@1568 | 538 | int argp = nptypes - 1; |
twisti@1568 | 539 | if (argp >= 0) { |
twisti@1573 | 540 | _outgoing.at_grow(argp, make_state(T_VOID, ArgToken(tt_void))); // presize |
twisti@1568 | 541 | } |
twisti@1568 | 542 | for (int i = 0; i < nptypes; i++) { |
twisti@1568 | 543 | klassOop arg_type_klass = NULL; |
twisti@1568 | 544 | BasicType arg_type = java_lang_Class::as_BasicType( |
twisti@1568 | 545 | java_dyn_MethodType::ptype(mtype(), i), &arg_type_klass); |
twisti@1573 | 546 | int index = new_local_index(arg_type); |
twisti@1573 | 547 | ArgToken arg = make_parameter(arg_type, arg_type_klass, index, CHECK); |
twisti@1573 | 548 | debug_only(arg_type_klass = (klassOop) NULL); |
twisti@1568 | 549 | _outgoing.at_put(argp, make_state(arg_type, arg)); |
twisti@1568 | 550 | if (type2size[arg_type] == 2) { |
twisti@1568 | 551 | // add the extra slot, so we can model the JVM stack |
twisti@1573 | 552 | _outgoing.insert_before(argp+1, make_state(T_VOID, ArgToken(tt_void))); |
twisti@1568 | 553 | } |
twisti@1568 | 554 | --argp; |
twisti@1568 | 555 | } |
twisti@1568 | 556 | // call make_parameter at the end of the list for the return type |
twisti@1568 | 557 | klassOop ret_type_klass = NULL; |
twisti@1568 | 558 | BasicType ret_type = java_lang_Class::as_BasicType( |
twisti@1568 | 559 | java_dyn_MethodType::rtype(mtype()), &ret_type_klass); |
twisti@1568 | 560 | ArgToken ret = make_parameter(ret_type, ret_type_klass, -1, CHECK); |
twisti@1568 | 561 | // ignore ret; client can catch it if needed |
twisti@1568 | 562 | } |
twisti@1568 | 563 | |
twisti@1573 | 564 | |
twisti@1573 | 565 | // ----------------------------------------------------------------------------- |
twisti@1573 | 566 | // MethodHandleWalker::change_argument |
twisti@1573 | 567 | // |
twisti@1573 | 568 | // This is messy because some kinds of arguments are paired with |
twisti@1573 | 569 | // companion slots containing an empty value. |
twisti@1568 | 570 | void MethodHandleWalker::change_argument(BasicType old_type, int slot, BasicType new_type, |
twisti@1573 | 571 | const ArgToken& new_arg) { |
twisti@1568 | 572 | int old_size = type2size[old_type]; |
twisti@1568 | 573 | int new_size = type2size[new_type]; |
twisti@1568 | 574 | if (old_size == new_size) { |
twisti@1568 | 575 | // simple case first |
twisti@1568 | 576 | _outgoing.at_put(slot, make_state(new_type, new_arg)); |
twisti@1568 | 577 | } else if (old_size > new_size) { |
twisti@1573 | 578 | for (int i = old_size - 1; i >= new_size; i--) { |
twisti@1568 | 579 | assert((i != 0) == (_outgoing.at(slot + i)._type == T_VOID), ""); |
twisti@1568 | 580 | _outgoing.remove_at(slot + i); |
twisti@1568 | 581 | } |
twisti@1568 | 582 | if (new_size > 0) |
twisti@1568 | 583 | _outgoing.at_put(slot, make_state(new_type, new_arg)); |
twisti@1568 | 584 | else |
twisti@1568 | 585 | _outgoing_argc -= 1; // deleted a real argument |
twisti@1568 | 586 | } else { |
twisti@1568 | 587 | for (int i = old_size; i < new_size; i++) { |
twisti@1573 | 588 | _outgoing.insert_before(slot + i, make_state(T_VOID, ArgToken(tt_void))); |
twisti@1568 | 589 | } |
twisti@1568 | 590 | _outgoing.at_put(slot, make_state(new_type, new_arg)); |
twisti@1568 | 591 | if (old_size == 0) |
twisti@1568 | 592 | _outgoing_argc += 1; // inserted a real argument |
twisti@1568 | 593 | } |
twisti@1568 | 594 | } |
twisti@1568 | 595 | |
twisti@1568 | 596 | |
twisti@1568 | 597 | #ifdef ASSERT |
twisti@1568 | 598 | int MethodHandleWalker::argument_count_slow() { |
twisti@1568 | 599 | int args_seen = 0; |
twisti@1568 | 600 | for (int i = _outgoing.length() - 1; i >= 0; i--) { |
twisti@1568 | 601 | if (_outgoing.at(i)._type != T_VOID) { |
twisti@1568 | 602 | ++args_seen; |
twisti@1568 | 603 | } |
twisti@1568 | 604 | } |
twisti@1568 | 605 | return args_seen; |
twisti@1568 | 606 | } |
twisti@1568 | 607 | #endif |
twisti@1568 | 608 | |
twisti@1568 | 609 | |
twisti@1573 | 610 | // ----------------------------------------------------------------------------- |
twisti@1573 | 611 | // MethodHandleCompiler |
twisti@1573 | 612 | |
twisti@1573 | 613 | MethodHandleCompiler::MethodHandleCompiler(Handle root, methodHandle callee, bool is_invokedynamic, TRAPS) |
twisti@1573 | 614 | : MethodHandleWalker(root, is_invokedynamic, THREAD), |
twisti@1573 | 615 | _callee(callee), |
twisti@1573 | 616 | _thread(THREAD), |
twisti@1573 | 617 | _bytecode(THREAD, 50), |
twisti@1573 | 618 | _constants(THREAD, 10), |
twisti@1573 | 619 | _cur_stack(0), |
twisti@1573 | 620 | _max_stack(0), |
twisti@1573 | 621 | _rtype(T_ILLEGAL) |
twisti@1573 | 622 | { |
twisti@1573 | 623 | |
twisti@1573 | 624 | // Element zero is always the null constant. |
twisti@1573 | 625 | (void) _constants.append(NULL); |
twisti@1573 | 626 | |
twisti@1573 | 627 | // Set name and signature index. |
twisti@1573 | 628 | _name_index = cpool_symbol_put(_callee->name()); |
twisti@1573 | 629 | _signature_index = cpool_symbol_put(_callee->signature()); |
twisti@1573 | 630 | |
twisti@1573 | 631 | // Get return type klass. |
twisti@1573 | 632 | Handle first_mtype(THREAD, chain().method_type_oop()); |
twisti@1573 | 633 | // _rklass is NULL for primitives. |
twisti@1573 | 634 | _rtype = java_lang_Class::as_BasicType(java_dyn_MethodType::rtype(first_mtype()), &_rklass); |
twisti@1587 | 635 | if (_rtype == T_ARRAY) _rtype = T_OBJECT; |
twisti@1573 | 636 | |
twisti@1573 | 637 | int params = _callee->size_of_parameters(); // Incoming arguments plus receiver. |
twisti@1573 | 638 | _num_params = for_invokedynamic() ? params - 1 : params; // XXX Check if callee is static? |
twisti@1573 | 639 | } |
twisti@1573 | 640 | |
twisti@1573 | 641 | |
twisti@1573 | 642 | // ----------------------------------------------------------------------------- |
twisti@1573 | 643 | // MethodHandleCompiler::compile |
twisti@1573 | 644 | // |
twisti@1573 | 645 | // Compile this MethodHandle into a bytecode adapter and return a |
twisti@1573 | 646 | // methodOop. |
twisti@1573 | 647 | methodHandle MethodHandleCompiler::compile(TRAPS) { |
twisti@1568 | 648 | assert(_thread == THREAD, "must be same thread"); |
twisti@1573 | 649 | methodHandle nullHandle; |
twisti@1573 | 650 | (void) walk(CHECK_(nullHandle)); |
twisti@1573 | 651 | return get_method_oop(CHECK_(nullHandle)); |
twisti@1573 | 652 | } |
twisti@1568 | 653 | |
twisti@1573 | 654 | |
twisti@1573 | 655 | void MethodHandleCompiler::emit_bc(Bytecodes::Code op, int index) { |
twisti@1573 | 656 | Bytecodes::check(op); // Are we legal? |
twisti@1573 | 657 | |
twisti@1573 | 658 | switch (op) { |
twisti@1573 | 659 | // b |
twisti@1573 | 660 | case Bytecodes::_aconst_null: |
twisti@1573 | 661 | case Bytecodes::_iconst_m1: |
twisti@1573 | 662 | case Bytecodes::_iconst_0: |
twisti@1573 | 663 | case Bytecodes::_iconst_1: |
twisti@1573 | 664 | case Bytecodes::_iconst_2: |
twisti@1573 | 665 | case Bytecodes::_iconst_3: |
twisti@1573 | 666 | case Bytecodes::_iconst_4: |
twisti@1573 | 667 | case Bytecodes::_iconst_5: |
twisti@1573 | 668 | case Bytecodes::_lconst_0: |
twisti@1573 | 669 | case Bytecodes::_lconst_1: |
twisti@1573 | 670 | case Bytecodes::_fconst_0: |
twisti@1573 | 671 | case Bytecodes::_fconst_1: |
twisti@1573 | 672 | case Bytecodes::_fconst_2: |
twisti@1573 | 673 | case Bytecodes::_dconst_0: |
twisti@1573 | 674 | case Bytecodes::_dconst_1: |
twisti@1573 | 675 | case Bytecodes::_iload_0: |
twisti@1573 | 676 | case Bytecodes::_iload_1: |
twisti@1573 | 677 | case Bytecodes::_iload_2: |
twisti@1573 | 678 | case Bytecodes::_iload_3: |
twisti@1573 | 679 | case Bytecodes::_lload_0: |
twisti@1573 | 680 | case Bytecodes::_lload_1: |
twisti@1573 | 681 | case Bytecodes::_lload_2: |
twisti@1573 | 682 | case Bytecodes::_lload_3: |
twisti@1573 | 683 | case Bytecodes::_fload_0: |
twisti@1573 | 684 | case Bytecodes::_fload_1: |
twisti@1573 | 685 | case Bytecodes::_fload_2: |
twisti@1573 | 686 | case Bytecodes::_fload_3: |
twisti@1573 | 687 | case Bytecodes::_dload_0: |
twisti@1573 | 688 | case Bytecodes::_dload_1: |
twisti@1573 | 689 | case Bytecodes::_dload_2: |
twisti@1573 | 690 | case Bytecodes::_dload_3: |
twisti@1573 | 691 | case Bytecodes::_aload_0: |
twisti@1573 | 692 | case Bytecodes::_aload_1: |
twisti@1573 | 693 | case Bytecodes::_aload_2: |
twisti@1573 | 694 | case Bytecodes::_aload_3: |
twisti@1573 | 695 | case Bytecodes::_istore_0: |
twisti@1573 | 696 | case Bytecodes::_istore_1: |
twisti@1573 | 697 | case Bytecodes::_istore_2: |
twisti@1573 | 698 | case Bytecodes::_istore_3: |
twisti@1573 | 699 | case Bytecodes::_lstore_0: |
twisti@1573 | 700 | case Bytecodes::_lstore_1: |
twisti@1573 | 701 | case Bytecodes::_lstore_2: |
twisti@1573 | 702 | case Bytecodes::_lstore_3: |
twisti@1573 | 703 | case Bytecodes::_fstore_0: |
twisti@1573 | 704 | case Bytecodes::_fstore_1: |
twisti@1573 | 705 | case Bytecodes::_fstore_2: |
twisti@1573 | 706 | case Bytecodes::_fstore_3: |
twisti@1573 | 707 | case Bytecodes::_dstore_0: |
twisti@1573 | 708 | case Bytecodes::_dstore_1: |
twisti@1573 | 709 | case Bytecodes::_dstore_2: |
twisti@1573 | 710 | case Bytecodes::_dstore_3: |
twisti@1573 | 711 | case Bytecodes::_astore_0: |
twisti@1573 | 712 | case Bytecodes::_astore_1: |
twisti@1573 | 713 | case Bytecodes::_astore_2: |
twisti@1573 | 714 | case Bytecodes::_astore_3: |
twisti@1573 | 715 | case Bytecodes::_i2l: |
twisti@1573 | 716 | case Bytecodes::_i2f: |
twisti@1573 | 717 | case Bytecodes::_i2d: |
twisti@1573 | 718 | case Bytecodes::_i2b: |
twisti@1573 | 719 | case Bytecodes::_i2c: |
twisti@1573 | 720 | case Bytecodes::_i2s: |
twisti@1573 | 721 | case Bytecodes::_l2i: |
twisti@1573 | 722 | case Bytecodes::_l2f: |
twisti@1573 | 723 | case Bytecodes::_l2d: |
twisti@1573 | 724 | case Bytecodes::_f2i: |
twisti@1573 | 725 | case Bytecodes::_f2l: |
twisti@1573 | 726 | case Bytecodes::_f2d: |
twisti@1573 | 727 | case Bytecodes::_d2i: |
twisti@1573 | 728 | case Bytecodes::_d2l: |
twisti@1573 | 729 | case Bytecodes::_d2f: |
twisti@1573 | 730 | case Bytecodes::_ireturn: |
twisti@1573 | 731 | case Bytecodes::_lreturn: |
twisti@1573 | 732 | case Bytecodes::_freturn: |
twisti@1573 | 733 | case Bytecodes::_dreturn: |
twisti@1573 | 734 | case Bytecodes::_areturn: |
twisti@1573 | 735 | case Bytecodes::_return: |
jrose@1920 | 736 | assert(Bytecodes::format_bits(op, false) == Bytecodes::_fmt_b, "wrong bytecode format"); |
twisti@1573 | 737 | _bytecode.push(op); |
twisti@1573 | 738 | break; |
twisti@1573 | 739 | |
twisti@1573 | 740 | // bi |
twisti@1573 | 741 | case Bytecodes::_ldc: |
jrose@2017 | 742 | assert(Bytecodes::format_bits(op, false) == (Bytecodes::_fmt_b|Bytecodes::_fmt_has_k), "wrong bytecode format"); |
jrose@2017 | 743 | assert((char) index == index, "index does not fit in 8-bit"); |
jrose@2017 | 744 | _bytecode.push(op); |
jrose@2017 | 745 | _bytecode.push(index); |
jrose@2017 | 746 | break; |
jrose@2017 | 747 | |
twisti@1573 | 748 | case Bytecodes::_iload: |
twisti@1573 | 749 | case Bytecodes::_lload: |
twisti@1573 | 750 | case Bytecodes::_fload: |
twisti@1573 | 751 | case Bytecodes::_dload: |
twisti@1573 | 752 | case Bytecodes::_aload: |
twisti@1573 | 753 | case Bytecodes::_istore: |
twisti@1573 | 754 | case Bytecodes::_lstore: |
twisti@1573 | 755 | case Bytecodes::_fstore: |
twisti@1573 | 756 | case Bytecodes::_dstore: |
twisti@1573 | 757 | case Bytecodes::_astore: |
jrose@1920 | 758 | assert(Bytecodes::format_bits(op, false) == Bytecodes::_fmt_bi, "wrong bytecode format"); |
twisti@1573 | 759 | assert((char) index == index, "index does not fit in 8-bit"); |
twisti@1573 | 760 | _bytecode.push(op); |
twisti@1573 | 761 | _bytecode.push(index); |
twisti@1573 | 762 | break; |
twisti@1573 | 763 | |
jrose@2017 | 764 | // bkk |
jrose@2017 | 765 | case Bytecodes::_ldc_w: |
twisti@1573 | 766 | case Bytecodes::_ldc2_w: |
twisti@1573 | 767 | case Bytecodes::_checkcast: |
jrose@1920 | 768 | assert(Bytecodes::format_bits(op, false) == Bytecodes::_fmt_bkk, "wrong bytecode format"); |
twisti@1573 | 769 | assert((short) index == index, "index does not fit in 16-bit"); |
twisti@1573 | 770 | _bytecode.push(op); |
twisti@1573 | 771 | _bytecode.push(index >> 8); |
twisti@1573 | 772 | _bytecode.push(index); |
twisti@1573 | 773 | break; |
twisti@1573 | 774 | |
jrose@1920 | 775 | // bJJ |
twisti@1573 | 776 | case Bytecodes::_invokestatic: |
twisti@1573 | 777 | case Bytecodes::_invokespecial: |
twisti@1573 | 778 | case Bytecodes::_invokevirtual: |
jrose@1920 | 779 | assert(Bytecodes::format_bits(op, false) == Bytecodes::_fmt_bJJ, "wrong bytecode format"); |
twisti@1573 | 780 | assert((short) index == index, "index does not fit in 16-bit"); |
twisti@1573 | 781 | _bytecode.push(op); |
twisti@1573 | 782 | _bytecode.push(index >> 8); |
twisti@1573 | 783 | _bytecode.push(index); |
twisti@1573 | 784 | break; |
twisti@1573 | 785 | |
twisti@1573 | 786 | default: |
twisti@1573 | 787 | ShouldNotReachHere(); |
twisti@1568 | 788 | } |
twisti@1573 | 789 | } |
twisti@1568 | 790 | |
twisti@1573 | 791 | |
twisti@1573 | 792 | void MethodHandleCompiler::emit_load(BasicType bt, int index) { |
twisti@1573 | 793 | if (index <= 3) { |
twisti@1573 | 794 | switch (bt) { |
twisti@1573 | 795 | case T_BOOLEAN: case T_BYTE: case T_CHAR: case T_SHORT: |
twisti@1573 | 796 | case T_INT: emit_bc(Bytecodes::cast(Bytecodes::_iload_0 + index)); break; |
twisti@1573 | 797 | case T_LONG: emit_bc(Bytecodes::cast(Bytecodes::_lload_0 + index)); break; |
twisti@1573 | 798 | case T_FLOAT: emit_bc(Bytecodes::cast(Bytecodes::_fload_0 + index)); break; |
twisti@1573 | 799 | case T_DOUBLE: emit_bc(Bytecodes::cast(Bytecodes::_dload_0 + index)); break; |
twisti@1573 | 800 | case T_OBJECT: emit_bc(Bytecodes::cast(Bytecodes::_aload_0 + index)); break; |
twisti@1573 | 801 | default: |
twisti@1573 | 802 | ShouldNotReachHere(); |
twisti@1573 | 803 | } |
twisti@1573 | 804 | } |
twisti@1573 | 805 | else { |
twisti@1573 | 806 | switch (bt) { |
twisti@1573 | 807 | case T_BOOLEAN: case T_BYTE: case T_CHAR: case T_SHORT: |
twisti@1573 | 808 | case T_INT: emit_bc(Bytecodes::_iload, index); break; |
twisti@1573 | 809 | case T_LONG: emit_bc(Bytecodes::_lload, index); break; |
twisti@1573 | 810 | case T_FLOAT: emit_bc(Bytecodes::_fload, index); break; |
twisti@1573 | 811 | case T_DOUBLE: emit_bc(Bytecodes::_dload, index); break; |
twisti@1573 | 812 | case T_OBJECT: emit_bc(Bytecodes::_aload, index); break; |
twisti@1573 | 813 | default: |
twisti@1573 | 814 | ShouldNotReachHere(); |
twisti@1573 | 815 | } |
twisti@1573 | 816 | } |
twisti@1573 | 817 | stack_push(bt); |
twisti@1568 | 818 | } |
twisti@1568 | 819 | |
twisti@1573 | 820 | void MethodHandleCompiler::emit_store(BasicType bt, int index) { |
twisti@1573 | 821 | if (index <= 3) { |
twisti@1573 | 822 | switch (bt) { |
twisti@1573 | 823 | case T_BOOLEAN: case T_BYTE: case T_CHAR: case T_SHORT: |
twisti@1573 | 824 | case T_INT: emit_bc(Bytecodes::cast(Bytecodes::_istore_0 + index)); break; |
twisti@1573 | 825 | case T_LONG: emit_bc(Bytecodes::cast(Bytecodes::_lstore_0 + index)); break; |
twisti@1573 | 826 | case T_FLOAT: emit_bc(Bytecodes::cast(Bytecodes::_fstore_0 + index)); break; |
twisti@1573 | 827 | case T_DOUBLE: emit_bc(Bytecodes::cast(Bytecodes::_dstore_0 + index)); break; |
twisti@1573 | 828 | case T_OBJECT: emit_bc(Bytecodes::cast(Bytecodes::_astore_0 + index)); break; |
twisti@1573 | 829 | default: |
twisti@1573 | 830 | ShouldNotReachHere(); |
twisti@1573 | 831 | } |
twisti@1573 | 832 | } |
twisti@1573 | 833 | else { |
twisti@1573 | 834 | switch (bt) { |
twisti@1573 | 835 | case T_BOOLEAN: case T_BYTE: case T_CHAR: case T_SHORT: |
twisti@1573 | 836 | case T_INT: emit_bc(Bytecodes::_istore, index); break; |
twisti@1573 | 837 | case T_LONG: emit_bc(Bytecodes::_lstore, index); break; |
twisti@1573 | 838 | case T_FLOAT: emit_bc(Bytecodes::_fstore, index); break; |
twisti@1573 | 839 | case T_DOUBLE: emit_bc(Bytecodes::_dstore, index); break; |
twisti@1573 | 840 | case T_OBJECT: emit_bc(Bytecodes::_astore, index); break; |
twisti@1573 | 841 | default: |
twisti@1573 | 842 | ShouldNotReachHere(); |
twisti@1573 | 843 | } |
twisti@1573 | 844 | } |
twisti@1573 | 845 | stack_pop(bt); |
twisti@1573 | 846 | } |
twisti@1573 | 847 | |
twisti@1573 | 848 | |
twisti@1573 | 849 | void MethodHandleCompiler::emit_load_constant(ArgToken arg) { |
twisti@1573 | 850 | BasicType bt = arg.basic_type(); |
twisti@1573 | 851 | switch (bt) { |
twisti@1573 | 852 | case T_INT: { |
twisti@1573 | 853 | jint value = arg.get_jint(); |
twisti@1573 | 854 | if (-1 <= value && value <= 5) |
twisti@1573 | 855 | emit_bc(Bytecodes::cast(Bytecodes::_iconst_0 + value)); |
twisti@1573 | 856 | else |
twisti@1573 | 857 | emit_bc(Bytecodes::_ldc, cpool_int_put(value)); |
twisti@1573 | 858 | break; |
twisti@1573 | 859 | } |
twisti@1573 | 860 | case T_LONG: { |
twisti@1573 | 861 | jlong value = arg.get_jlong(); |
twisti@1573 | 862 | if (0 <= value && value <= 1) |
twisti@1573 | 863 | emit_bc(Bytecodes::cast(Bytecodes::_lconst_0 + (int) value)); |
twisti@1573 | 864 | else |
twisti@1573 | 865 | emit_bc(Bytecodes::_ldc2_w, cpool_long_put(value)); |
twisti@1573 | 866 | break; |
twisti@1573 | 867 | } |
twisti@1573 | 868 | case T_FLOAT: { |
twisti@1573 | 869 | jfloat value = arg.get_jfloat(); |
twisti@1573 | 870 | if (value == 0.0 || value == 1.0 || value == 2.0) |
twisti@1573 | 871 | emit_bc(Bytecodes::cast(Bytecodes::_fconst_0 + (int) value)); |
twisti@1573 | 872 | else |
twisti@1573 | 873 | emit_bc(Bytecodes::_ldc, cpool_float_put(value)); |
twisti@1573 | 874 | break; |
twisti@1573 | 875 | } |
twisti@1573 | 876 | case T_DOUBLE: { |
twisti@1573 | 877 | jdouble value = arg.get_jdouble(); |
twisti@1573 | 878 | if (value == 0.0 || value == 1.0) |
twisti@1573 | 879 | emit_bc(Bytecodes::cast(Bytecodes::_dconst_0 + (int) value)); |
twisti@1573 | 880 | else |
twisti@1573 | 881 | emit_bc(Bytecodes::_ldc2_w, cpool_double_put(value)); |
twisti@1573 | 882 | break; |
twisti@1573 | 883 | } |
twisti@1573 | 884 | case T_OBJECT: { |
twisti@1573 | 885 | Handle value = arg.object(); |
twisti@1573 | 886 | if (value.is_null()) |
twisti@1573 | 887 | emit_bc(Bytecodes::_aconst_null); |
twisti@1573 | 888 | else |
twisti@1573 | 889 | emit_bc(Bytecodes::_ldc, cpool_object_put(value)); |
twisti@1573 | 890 | break; |
twisti@1573 | 891 | } |
twisti@1573 | 892 | default: |
twisti@1573 | 893 | ShouldNotReachHere(); |
twisti@1573 | 894 | } |
twisti@1573 | 895 | stack_push(bt); |
twisti@1573 | 896 | } |
twisti@1573 | 897 | |
twisti@1573 | 898 | |
twisti@1568 | 899 | MethodHandleWalker::ArgToken |
twisti@1568 | 900 | MethodHandleCompiler::make_conversion(BasicType type, klassOop tk, Bytecodes::Code op, |
twisti@1573 | 901 | const ArgToken& src, TRAPS) { |
twisti@1573 | 902 | |
twisti@1573 | 903 | BasicType srctype = src.basic_type(); |
twisti@1573 | 904 | int index = src.index(); |
twisti@1573 | 905 | |
twisti@1573 | 906 | switch (op) { |
twisti@1573 | 907 | case Bytecodes::_i2l: |
twisti@1573 | 908 | case Bytecodes::_i2f: |
twisti@1573 | 909 | case Bytecodes::_i2d: |
twisti@1573 | 910 | case Bytecodes::_i2b: |
twisti@1573 | 911 | case Bytecodes::_i2c: |
twisti@1573 | 912 | case Bytecodes::_i2s: |
twisti@1573 | 913 | |
twisti@1573 | 914 | case Bytecodes::_l2i: |
twisti@1573 | 915 | case Bytecodes::_l2f: |
twisti@1573 | 916 | case Bytecodes::_l2d: |
twisti@1573 | 917 | |
twisti@1573 | 918 | case Bytecodes::_f2i: |
twisti@1573 | 919 | case Bytecodes::_f2l: |
twisti@1573 | 920 | case Bytecodes::_f2d: |
twisti@1573 | 921 | |
twisti@1573 | 922 | case Bytecodes::_d2i: |
twisti@1573 | 923 | case Bytecodes::_d2l: |
twisti@1573 | 924 | case Bytecodes::_d2f: |
twisti@1573 | 925 | emit_load(srctype, index); |
twisti@1573 | 926 | stack_pop(srctype); // pop the src type |
twisti@1573 | 927 | emit_bc(op); |
twisti@1573 | 928 | stack_push(type); // push the dest value |
twisti@1573 | 929 | if (srctype != type) |
twisti@1573 | 930 | index = new_local_index(type); |
twisti@1573 | 931 | emit_store(type, index); |
twisti@1573 | 932 | break; |
twisti@1573 | 933 | |
twisti@1573 | 934 | case Bytecodes::_checkcast: |
twisti@1573 | 935 | emit_load(srctype, index); |
twisti@1573 | 936 | emit_bc(op, cpool_klass_put(tk)); |
twisti@1573 | 937 | emit_store(srctype, index); |
twisti@1573 | 938 | break; |
twisti@1573 | 939 | |
twisti@1573 | 940 | default: |
twisti@1573 | 941 | ShouldNotReachHere(); |
twisti@1573 | 942 | } |
twisti@1573 | 943 | |
twisti@1573 | 944 | return make_parameter(type, tk, index, THREAD); |
twisti@1568 | 945 | } |
twisti@1568 | 946 | |
twisti@1573 | 947 | |
twisti@1573 | 948 | // ----------------------------------------------------------------------------- |
twisti@1573 | 949 | // MethodHandleCompiler |
twisti@1573 | 950 | // |
twisti@1573 | 951 | |
twisti@1573 | 952 | static jvalue zero_jvalue; |
twisti@1573 | 953 | |
twisti@1573 | 954 | // Emit bytecodes for the given invoke instruction. |
twisti@1568 | 955 | MethodHandleWalker::ArgToken |
twisti@1568 | 956 | MethodHandleCompiler::make_invoke(methodOop m, vmIntrinsics::ID iid, |
twisti@1568 | 957 | Bytecodes::Code op, bool tailcall, |
twisti@1568 | 958 | int argc, MethodHandleWalker::ArgToken* argv, |
twisti@1568 | 959 | TRAPS) { |
twisti@1573 | 960 | if (m == NULL) { |
twisti@1573 | 961 | // Get the intrinsic methodOop. |
twisti@1573 | 962 | m = vmIntrinsics::method_for(iid); |
twisti@1573 | 963 | } |
twisti@1573 | 964 | |
twisti@1573 | 965 | klassOop klass = m->method_holder(); |
twisti@1573 | 966 | symbolOop name = m->name(); |
twisti@1573 | 967 | symbolOop signature = m->signature(); |
twisti@1573 | 968 | |
twisti@1573 | 969 | if (tailcall) { |
twisti@1587 | 970 | // Actually, in order to make these methods more recognizable, |
twisti@1587 | 971 | // let's put them in holder classes MethodHandle and InvokeDynamic. |
twisti@1587 | 972 | // That way stack walkers and compiler heuristics can recognize them. |
twisti@1587 | 973 | _target_klass = (for_invokedynamic() |
twisti@1587 | 974 | ? SystemDictionary::InvokeDynamic_klass() |
twisti@1587 | 975 | : SystemDictionary::MethodHandle_klass()); |
twisti@1573 | 976 | } |
twisti@1573 | 977 | |
twisti@1573 | 978 | // instanceKlass* ik = instanceKlass::cast(klass); |
twisti@1573 | 979 | // tty->print_cr("MethodHandleCompiler::make_invoke: %s %s.%s%s", Bytecodes::name(op), ik->external_name(), name->as_C_string(), signature->as_C_string()); |
twisti@1573 | 980 | |
twisti@1573 | 981 | // Inline the method. |
twisti@1573 | 982 | InvocationCounter* ic = m->invocation_counter(); |
iveresov@2138 | 983 | ic->set_carry_flag(); |
twisti@1573 | 984 | |
twisti@1573 | 985 | for (int i = 0; i < argc; i++) { |
twisti@1573 | 986 | ArgToken arg = argv[i]; |
twisti@1573 | 987 | TokenType tt = arg.token_type(); |
twisti@1573 | 988 | BasicType bt = arg.basic_type(); |
twisti@1573 | 989 | |
twisti@1573 | 990 | switch (tt) { |
twisti@1573 | 991 | case tt_parameter: |
twisti@1573 | 992 | case tt_temporary: |
twisti@1573 | 993 | emit_load(bt, arg.index()); |
twisti@1573 | 994 | break; |
twisti@1573 | 995 | case tt_constant: |
twisti@1573 | 996 | emit_load_constant(arg); |
twisti@1573 | 997 | break; |
twisti@1573 | 998 | case tt_illegal: |
twisti@1573 | 999 | // Sentinel. |
twisti@1573 | 1000 | assert(i == (argc - 1), "sentinel must be last entry"); |
twisti@1573 | 1001 | break; |
twisti@1573 | 1002 | case tt_void: |
twisti@1573 | 1003 | default: |
twisti@1573 | 1004 | ShouldNotReachHere(); |
twisti@1573 | 1005 | } |
twisti@1573 | 1006 | } |
twisti@1573 | 1007 | |
twisti@1573 | 1008 | // Populate constant pool. |
twisti@1573 | 1009 | int name_index = cpool_symbol_put(name); |
twisti@1573 | 1010 | int signature_index = cpool_symbol_put(signature); |
twisti@1573 | 1011 | int name_and_type_index = cpool_name_and_type_put(name_index, signature_index); |
twisti@1573 | 1012 | int klass_index = cpool_klass_put(klass); |
twisti@1573 | 1013 | int methodref_index = cpool_methodref_put(klass_index, name_and_type_index); |
twisti@1573 | 1014 | |
twisti@1573 | 1015 | // Generate invoke. |
twisti@1568 | 1016 | switch (op) { |
twisti@1573 | 1017 | case Bytecodes::_invokestatic: |
twisti@1573 | 1018 | case Bytecodes::_invokespecial: |
twisti@1568 | 1019 | case Bytecodes::_invokevirtual: |
twisti@1573 | 1020 | emit_bc(op, methodref_index); |
twisti@1573 | 1021 | break; |
twisti@1568 | 1022 | case Bytecodes::_invokeinterface: |
twisti@1573 | 1023 | Unimplemented(); |
twisti@1568 | 1024 | break; |
twisti@1568 | 1025 | default: |
twisti@1568 | 1026 | ShouldNotReachHere(); |
twisti@1568 | 1027 | } |
twisti@1568 | 1028 | |
twisti@1573 | 1029 | // If tailcall, we have walked all the way to a direct method handle. |
twisti@1573 | 1030 | // Otherwise, make a recursive call to some helper routine. |
twisti@1573 | 1031 | BasicType rbt = m->result_type(); |
twisti@1587 | 1032 | if (rbt == T_ARRAY) rbt = T_OBJECT; |
twisti@1573 | 1033 | ArgToken ret; |
twisti@1573 | 1034 | if (tailcall) { |
twisti@1573 | 1035 | if (rbt != _rtype) { |
twisti@1573 | 1036 | if (rbt == T_VOID) { |
twisti@1573 | 1037 | // push a zero of the right sort |
twisti@1573 | 1038 | ArgToken zero; |
twisti@1573 | 1039 | if (_rtype == T_OBJECT) { |
twisti@1573 | 1040 | zero = make_oop_constant(NULL, CHECK_(zero)); |
twisti@1573 | 1041 | } else { |
twisti@1573 | 1042 | zero = make_prim_constant(_rtype, &zero_jvalue, CHECK_(zero)); |
twisti@1573 | 1043 | } |
twisti@1573 | 1044 | emit_load_constant(zero); |
twisti@1573 | 1045 | } else if (_rtype == T_VOID) { |
twisti@1573 | 1046 | // We'll emit a _return with something on the stack. |
twisti@1573 | 1047 | // It's OK to ignore what's on the stack. |
twisti@1573 | 1048 | } else { |
twisti@1573 | 1049 | tty->print_cr("*** rbt=%d != rtype=%d", rbt, _rtype); |
twisti@1573 | 1050 | assert(false, "IMPLEMENT ME"); |
twisti@1573 | 1051 | } |
twisti@1573 | 1052 | } |
twisti@1573 | 1053 | switch (_rtype) { |
twisti@1573 | 1054 | case T_BOOLEAN: case T_BYTE: case T_CHAR: case T_SHORT: |
twisti@1573 | 1055 | case T_INT: emit_bc(Bytecodes::_ireturn); break; |
twisti@1573 | 1056 | case T_LONG: emit_bc(Bytecodes::_lreturn); break; |
twisti@1573 | 1057 | case T_FLOAT: emit_bc(Bytecodes::_freturn); break; |
twisti@1573 | 1058 | case T_DOUBLE: emit_bc(Bytecodes::_dreturn); break; |
twisti@1573 | 1059 | case T_VOID: emit_bc(Bytecodes::_return); break; |
twisti@1573 | 1060 | case T_OBJECT: |
never@1577 | 1061 | if (_rklass.not_null() && _rklass() != SystemDictionary::Object_klass()) |
twisti@1573 | 1062 | emit_bc(Bytecodes::_checkcast, cpool_klass_put(_rklass())); |
twisti@1573 | 1063 | emit_bc(Bytecodes::_areturn); |
twisti@1573 | 1064 | break; |
twisti@1573 | 1065 | default: ShouldNotReachHere(); |
twisti@1573 | 1066 | } |
twisti@1573 | 1067 | ret = ArgToken(); // Dummy return value. |
twisti@1573 | 1068 | } |
twisti@1573 | 1069 | else { |
twisti@1573 | 1070 | stack_push(rbt); // The return value is already pushed onto the stack. |
twisti@1573 | 1071 | int index = new_local_index(rbt); |
twisti@1573 | 1072 | switch (rbt) { |
twisti@1573 | 1073 | case T_BOOLEAN: case T_BYTE: case T_CHAR: case T_SHORT: |
twisti@1573 | 1074 | case T_INT: case T_LONG: case T_FLOAT: case T_DOUBLE: |
twisti@1573 | 1075 | case T_OBJECT: |
twisti@1573 | 1076 | emit_store(rbt, index); |
twisti@1573 | 1077 | ret = ArgToken(tt_temporary, rbt, index); |
twisti@1573 | 1078 | break; |
twisti@1573 | 1079 | case T_VOID: |
twisti@1573 | 1080 | ret = ArgToken(tt_void); |
twisti@1573 | 1081 | break; |
twisti@1573 | 1082 | default: |
twisti@1573 | 1083 | ShouldNotReachHere(); |
twisti@1573 | 1084 | } |
twisti@1573 | 1085 | } |
twisti@1573 | 1086 | |
twisti@1573 | 1087 | return ret; |
twisti@1568 | 1088 | } |
twisti@1568 | 1089 | |
twisti@1568 | 1090 | MethodHandleWalker::ArgToken |
twisti@1568 | 1091 | MethodHandleCompiler::make_fetch(BasicType type, klassOop tk, Bytecodes::Code op, |
twisti@1573 | 1092 | const MethodHandleWalker::ArgToken& base, |
twisti@1573 | 1093 | const MethodHandleWalker::ArgToken& offset, |
twisti@1568 | 1094 | TRAPS) { |
twisti@1568 | 1095 | Unimplemented(); |
twisti@1573 | 1096 | return ArgToken(); |
twisti@1568 | 1097 | } |
twisti@1568 | 1098 | |
twisti@1568 | 1099 | |
twisti@1573 | 1100 | int MethodHandleCompiler::cpool_primitive_put(BasicType bt, jvalue* con) { |
twisti@1568 | 1101 | jvalue con_copy; |
twisti@1568 | 1102 | assert(bt < T_OBJECT, ""); |
twisti@1568 | 1103 | if (type2aelembytes(bt) < jintSize) { |
twisti@1568 | 1104 | // widen to int |
twisti@1568 | 1105 | con_copy = (*con); |
twisti@1568 | 1106 | con = &con_copy; |
twisti@1568 | 1107 | switch (bt) { |
twisti@1568 | 1108 | case T_BOOLEAN: con->i = (con->z ? 1 : 0); break; |
twisti@1568 | 1109 | case T_BYTE: con->i = con->b; break; |
twisti@1568 | 1110 | case T_CHAR: con->i = con->c; break; |
twisti@1568 | 1111 | case T_SHORT: con->i = con->s; break; |
twisti@1568 | 1112 | default: ShouldNotReachHere(); |
twisti@1568 | 1113 | } |
twisti@1568 | 1114 | bt = T_INT; |
twisti@1568 | 1115 | } |
twisti@1573 | 1116 | |
twisti@1573 | 1117 | // for (int i = 1, imax = _constants.length(); i < imax; i++) { |
twisti@1573 | 1118 | // ConstantValue* con = _constants.at(i); |
twisti@1573 | 1119 | // if (con != NULL && con->is_primitive() && con->_type == bt) { |
twisti@1573 | 1120 | // bool match = false; |
twisti@1573 | 1121 | // switch (type2size[bt]) { |
twisti@1573 | 1122 | // case 1: if (pcon->_value.i == con->i) match = true; break; |
twisti@1573 | 1123 | // case 2: if (pcon->_value.j == con->j) match = true; break; |
twisti@1573 | 1124 | // } |
twisti@1573 | 1125 | // if (match) |
twisti@1573 | 1126 | // return i; |
twisti@1573 | 1127 | // } |
twisti@1573 | 1128 | // } |
twisti@1573 | 1129 | ConstantValue* cv = new ConstantValue(bt, *con); |
twisti@1573 | 1130 | int index = _constants.append(cv); |
twisti@1573 | 1131 | |
twisti@1573 | 1132 | // long and double entries take 2 slots, we add another empty entry. |
twisti@1573 | 1133 | if (type2size[bt] == 2) |
twisti@1573 | 1134 | (void) _constants.append(NULL); |
twisti@1573 | 1135 | |
twisti@1573 | 1136 | return index; |
twisti@1573 | 1137 | } |
twisti@1573 | 1138 | |
twisti@1573 | 1139 | |
twisti@1573 | 1140 | constantPoolHandle MethodHandleCompiler::get_constant_pool(TRAPS) const { |
twisti@1573 | 1141 | constantPoolHandle nullHandle; |
twisti@1573 | 1142 | bool is_conc_safe = true; |
twisti@1573 | 1143 | constantPoolOop cpool_oop = oopFactory::new_constantPool(_constants.length(), is_conc_safe, CHECK_(nullHandle)); |
twisti@1573 | 1144 | constantPoolHandle cpool(THREAD, cpool_oop); |
twisti@1573 | 1145 | |
twisti@1573 | 1146 | // Fill the real constant pool skipping the zero element. |
twisti@1573 | 1147 | for (int i = 1; i < _constants.length(); i++) { |
twisti@1573 | 1148 | ConstantValue* cv = _constants.at(i); |
twisti@1573 | 1149 | switch (cv->tag()) { |
twisti@1573 | 1150 | case JVM_CONSTANT_Utf8: cpool->symbol_at_put( i, cv->symbol_oop() ); break; |
twisti@1573 | 1151 | case JVM_CONSTANT_Integer: cpool->int_at_put( i, cv->get_jint() ); break; |
twisti@1573 | 1152 | case JVM_CONSTANT_Float: cpool->float_at_put( i, cv->get_jfloat() ); break; |
twisti@1573 | 1153 | case JVM_CONSTANT_Long: cpool->long_at_put( i, cv->get_jlong() ); break; |
twisti@1573 | 1154 | case JVM_CONSTANT_Double: cpool->double_at_put( i, cv->get_jdouble() ); break; |
twisti@1573 | 1155 | case JVM_CONSTANT_Class: cpool->klass_at_put( i, cv->klass_oop() ); break; |
twisti@1573 | 1156 | case JVM_CONSTANT_Methodref: cpool->method_at_put( i, cv->first_index(), cv->second_index()); break; |
twisti@1573 | 1157 | case JVM_CONSTANT_NameAndType: cpool->name_and_type_at_put(i, cv->first_index(), cv->second_index()); break; |
twisti@1573 | 1158 | case JVM_CONSTANT_Object: cpool->object_at_put( i, cv->object_oop() ); break; |
twisti@1573 | 1159 | default: ShouldNotReachHere(); |
twisti@1573 | 1160 | } |
twisti@1573 | 1161 | |
twisti@1573 | 1162 | switch (cv->tag()) { |
twisti@1573 | 1163 | case JVM_CONSTANT_Long: |
twisti@1573 | 1164 | case JVM_CONSTANT_Double: |
twisti@1573 | 1165 | i++; // Skip empty entry. |
twisti@1573 | 1166 | assert(_constants.at(i) == NULL, "empty entry"); |
twisti@1573 | 1167 | break; |
twisti@1568 | 1168 | } |
twisti@1568 | 1169 | } |
twisti@1573 | 1170 | |
twisti@1573 | 1171 | // Set the constant pool holder to the target method's class. |
twisti@1573 | 1172 | cpool->set_pool_holder(_target_klass()); |
twisti@1573 | 1173 | |
twisti@1573 | 1174 | return cpool; |
twisti@1573 | 1175 | } |
twisti@1573 | 1176 | |
twisti@1573 | 1177 | |
twisti@1573 | 1178 | methodHandle MethodHandleCompiler::get_method_oop(TRAPS) const { |
twisti@1573 | 1179 | methodHandle nullHandle; |
twisti@1573 | 1180 | // Create a method that holds the generated bytecode. invokedynamic |
twisti@1573 | 1181 | // has no receiver, normal MH calls do. |
twisti@1573 | 1182 | int flags_bits; |
twisti@1573 | 1183 | if (for_invokedynamic()) |
jrose@1862 | 1184 | flags_bits = (/*JVM_MH_INVOKE_BITS |*/ JVM_ACC_PUBLIC | JVM_ACC_FINAL | JVM_ACC_SYNTHETIC | JVM_ACC_STATIC); |
twisti@1573 | 1185 | else |
jrose@1862 | 1186 | flags_bits = (/*JVM_MH_INVOKE_BITS |*/ JVM_ACC_PUBLIC | JVM_ACC_FINAL | JVM_ACC_SYNTHETIC); |
twisti@1573 | 1187 | |
twisti@1573 | 1188 | bool is_conc_safe = true; |
twisti@1573 | 1189 | methodOop m_oop = oopFactory::new_method(bytecode_length(), |
twisti@1573 | 1190 | accessFlags_from(flags_bits), |
twisti@1573 | 1191 | 0, 0, 0, is_conc_safe, CHECK_(nullHandle)); |
twisti@1573 | 1192 | methodHandle m(THREAD, m_oop); |
twisti@1573 | 1193 | m_oop = NULL; // oop not GC safe |
twisti@1573 | 1194 | |
twisti@1573 | 1195 | constantPoolHandle cpool = get_constant_pool(CHECK_(nullHandle)); |
twisti@1573 | 1196 | m->set_constants(cpool()); |
twisti@1573 | 1197 | |
twisti@1573 | 1198 | m->set_name_index(_name_index); |
twisti@1573 | 1199 | m->set_signature_index(_signature_index); |
twisti@1573 | 1200 | |
twisti@1573 | 1201 | m->set_code((address) bytecode()); |
twisti@1573 | 1202 | |
twisti@1573 | 1203 | m->set_max_stack(_max_stack); |
twisti@1573 | 1204 | m->set_max_locals(max_locals()); |
twisti@1573 | 1205 | m->set_size_of_parameters(_num_params); |
twisti@1573 | 1206 | |
twisti@1573 | 1207 | typeArrayHandle exception_handlers(THREAD, Universe::the_empty_int_array()); |
twisti@1573 | 1208 | m->set_exception_table(exception_handlers()); |
twisti@1573 | 1209 | |
twisti@1573 | 1210 | // Set the carry bit of the invocation counter to force inlining of |
twisti@1573 | 1211 | // the adapter. |
twisti@1573 | 1212 | InvocationCounter* ic = m->invocation_counter(); |
iveresov@2138 | 1213 | ic->set_carry_flag(); |
twisti@1573 | 1214 | |
twisti@1573 | 1215 | // Rewrite the method and set up the constant pool cache. |
twisti@1573 | 1216 | objArrayOop m_array = oopFactory::new_system_objArray(1, CHECK_(nullHandle)); |
twisti@1573 | 1217 | objArrayHandle methods(THREAD, m_array); |
twisti@1573 | 1218 | methods->obj_at_put(0, m()); |
twisti@1573 | 1219 | Rewriter::rewrite(_target_klass(), cpool, methods, CHECK_(nullHandle)); // Use fake class. |
twisti@1573 | 1220 | |
twisti@1573 | 1221 | #ifndef PRODUCT |
twisti@1573 | 1222 | if (TraceMethodHandles) { |
twisti@1573 | 1223 | m->print(); |
twisti@1573 | 1224 | m->print_codes(); |
twisti@1573 | 1225 | } |
twisti@1573 | 1226 | #endif //PRODUCT |
twisti@1573 | 1227 | |
jrose@1862 | 1228 | assert(m->is_method_handle_adapter(), "must be recognized as an adapter"); |
twisti@1573 | 1229 | return m; |
twisti@1568 | 1230 | } |
twisti@1568 | 1231 | |
twisti@1568 | 1232 | |
twisti@1568 | 1233 | #ifndef PRODUCT |
twisti@1568 | 1234 | |
twisti@1573 | 1235 | #if 0 |
twisti@1568 | 1236 | // MH printer for debugging. |
twisti@1568 | 1237 | |
twisti@1568 | 1238 | class MethodHandlePrinter : public MethodHandleWalker { |
twisti@1568 | 1239 | private: |
twisti@1568 | 1240 | outputStream* _out; |
twisti@1568 | 1241 | bool _verbose; |
twisti@1568 | 1242 | int _temp_num; |
twisti@1568 | 1243 | stringStream _strbuf; |
twisti@1568 | 1244 | const char* strbuf() { |
twisti@1568 | 1245 | const char* s = _strbuf.as_string(); |
twisti@1568 | 1246 | _strbuf.reset(); |
twisti@1568 | 1247 | return s; |
twisti@1568 | 1248 | } |
twisti@1568 | 1249 | ArgToken token(const char* str) { |
twisti@1568 | 1250 | return (ArgToken) str; |
twisti@1568 | 1251 | } |
twisti@1568 | 1252 | void start_params() { |
twisti@1568 | 1253 | _out->print("("); |
twisti@1568 | 1254 | } |
twisti@1568 | 1255 | void end_params() { |
twisti@1568 | 1256 | if (_verbose) _out->print("\n"); |
twisti@1568 | 1257 | _out->print(") => {"); |
twisti@1568 | 1258 | } |
twisti@1568 | 1259 | void put_type_name(BasicType type, klassOop tk, outputStream* s) { |
twisti@1568 | 1260 | const char* kname = NULL; |
twisti@1568 | 1261 | if (tk != NULL) |
twisti@1568 | 1262 | kname = Klass::cast(tk)->external_name(); |
twisti@1568 | 1263 | s->print("%s", (kname != NULL) ? kname : type2name(type)); |
twisti@1568 | 1264 | } |
twisti@1568 | 1265 | ArgToken maybe_make_temp(const char* statement_op, BasicType type, const char* temp_name) { |
twisti@1568 | 1266 | const char* value = strbuf(); |
twisti@1568 | 1267 | if (!_verbose) return token(value); |
twisti@1568 | 1268 | // make an explicit binding for each separate value |
twisti@1568 | 1269 | _strbuf.print("%s%d", temp_name, ++_temp_num); |
twisti@1568 | 1270 | const char* temp = strbuf(); |
twisti@1568 | 1271 | _out->print("\n %s %s %s = %s;", statement_op, type2name(type), temp, value); |
twisti@1568 | 1272 | return token(temp); |
twisti@1568 | 1273 | } |
twisti@1568 | 1274 | |
twisti@1568 | 1275 | public: |
twisti@1568 | 1276 | MethodHandlePrinter(Handle root, bool verbose, outputStream* out, TRAPS) |
twisti@1568 | 1277 | : MethodHandleWalker(root, THREAD), |
twisti@1568 | 1278 | _out(out), |
twisti@1568 | 1279 | _verbose(verbose), |
twisti@1568 | 1280 | _temp_num(0) |
twisti@1568 | 1281 | { |
twisti@1568 | 1282 | start_params(); |
twisti@1568 | 1283 | } |
twisti@1568 | 1284 | virtual ArgToken make_parameter(BasicType type, klassOop tk, int argnum, TRAPS) { |
twisti@1568 | 1285 | if (argnum < 0) { |
twisti@1568 | 1286 | end_params(); |
twisti@1568 | 1287 | return NULL; |
twisti@1568 | 1288 | } |
twisti@1568 | 1289 | if (argnum == 0) { |
twisti@1568 | 1290 | _out->print(_verbose ? "\n " : ""); |
twisti@1568 | 1291 | } else { |
twisti@1568 | 1292 | _out->print(_verbose ? ",\n " : ", "); |
twisti@1568 | 1293 | } |
twisti@1568 | 1294 | if (argnum >= _temp_num) |
twisti@1568 | 1295 | _temp_num = argnum; |
twisti@1568 | 1296 | // generate an argument name |
twisti@1568 | 1297 | _strbuf.print("a%d", argnum); |
twisti@1568 | 1298 | const char* arg = strbuf(); |
twisti@1568 | 1299 | put_type_name(type, tk, _out); |
twisti@1568 | 1300 | _out->print(" %s", arg); |
twisti@1568 | 1301 | return token(arg); |
twisti@1568 | 1302 | } |
twisti@1568 | 1303 | virtual ArgToken make_oop_constant(oop con, TRAPS) { |
twisti@1568 | 1304 | if (con == NULL) |
twisti@1568 | 1305 | _strbuf.print("null"); |
twisti@1568 | 1306 | else |
twisti@1568 | 1307 | con->print_value_on(&_strbuf); |
twisti@1568 | 1308 | if (_strbuf.size() == 0) { // yuck |
twisti@1568 | 1309 | _strbuf.print("(a "); |
twisti@1568 | 1310 | put_type_name(T_OBJECT, con->klass(), &_strbuf); |
twisti@1568 | 1311 | _strbuf.print(")"); |
twisti@1568 | 1312 | } |
twisti@1568 | 1313 | return maybe_make_temp("constant", T_OBJECT, "k"); |
twisti@1568 | 1314 | } |
twisti@1568 | 1315 | virtual ArgToken make_prim_constant(BasicType type, jvalue* con, TRAPS) { |
twisti@1568 | 1316 | java_lang_boxing_object::print(type, con, &_strbuf); |
twisti@1568 | 1317 | return maybe_make_temp("constant", type, "k"); |
twisti@1568 | 1318 | } |
twisti@1568 | 1319 | virtual ArgToken make_conversion(BasicType type, klassOop tk, Bytecodes::Code op, ArgToken src, TRAPS) { |
twisti@1568 | 1320 | _strbuf.print("%s(%s", Bytecodes::name(op), (const char*)src); |
twisti@1568 | 1321 | if (tk != NULL) { |
twisti@1568 | 1322 | _strbuf.print(", "); |
twisti@1568 | 1323 | put_type_name(type, tk, &_strbuf); |
twisti@1568 | 1324 | } |
twisti@1568 | 1325 | _strbuf.print(")"); |
twisti@1568 | 1326 | return maybe_make_temp("convert", type, "v"); |
twisti@1568 | 1327 | } |
twisti@1568 | 1328 | virtual ArgToken make_fetch(BasicType type, klassOop tk, Bytecodes::Code op, ArgToken base, ArgToken offset, TRAPS) { |
twisti@1568 | 1329 | _strbuf.print("%s(%s, %s", Bytecodes::name(op), (const char*)base, (const char*)offset); |
twisti@1568 | 1330 | if (tk != NULL) { |
twisti@1568 | 1331 | _strbuf.print(", "); |
twisti@1568 | 1332 | put_type_name(type, tk, &_strbuf); |
twisti@1568 | 1333 | } |
twisti@1568 | 1334 | _strbuf.print(")"); |
twisti@1568 | 1335 | return maybe_make_temp("fetch", type, "x"); |
twisti@1568 | 1336 | } |
twisti@1568 | 1337 | virtual ArgToken make_invoke(methodOop m, vmIntrinsics::ID iid, |
twisti@1568 | 1338 | Bytecodes::Code op, bool tailcall, |
twisti@1568 | 1339 | int argc, ArgToken* argv, TRAPS) { |
twisti@1568 | 1340 | symbolOop name, sig; |
twisti@1568 | 1341 | if (m != NULL) { |
twisti@1568 | 1342 | name = m->name(); |
twisti@1568 | 1343 | sig = m->signature(); |
twisti@1568 | 1344 | } else { |
twisti@1568 | 1345 | name = vmSymbols::symbol_at(vmIntrinsics::name_for(iid)); |
twisti@1568 | 1346 | sig = vmSymbols::symbol_at(vmIntrinsics::signature_for(iid)); |
twisti@1568 | 1347 | } |
twisti@1568 | 1348 | _strbuf.print("%s %s%s(", Bytecodes::name(op), name->as_C_string(), sig->as_C_string()); |
twisti@1568 | 1349 | for (int i = 0; i < argc; i++) { |
twisti@1568 | 1350 | _strbuf.print("%s%s", (i > 0 ? ", " : ""), (const char*)argv[i]); |
twisti@1568 | 1351 | } |
twisti@1568 | 1352 | _strbuf.print(")"); |
twisti@1568 | 1353 | if (!tailcall) { |
twisti@1568 | 1354 | BasicType rt = char2type(sig->byte_at(sig->utf8_length()-1)); |
twisti@1568 | 1355 | if (rt == T_ILLEGAL) rt = T_OBJECT; // ';' at the end of '(...)L...;' |
twisti@1568 | 1356 | return maybe_make_temp("invoke", rt, "x"); |
twisti@1568 | 1357 | } else { |
twisti@1568 | 1358 | const char* ret = strbuf(); |
twisti@1568 | 1359 | _out->print(_verbose ? "\n return " : " "); |
twisti@1568 | 1360 | _out->print("%s", ret); |
twisti@1568 | 1361 | _out->print(_verbose ? "\n}\n" : " }"); |
twisti@1568 | 1362 | } |
twisti@1568 | 1363 | return ArgToken(); |
twisti@1568 | 1364 | } |
twisti@1568 | 1365 | |
twisti@1568 | 1366 | virtual void set_method_handle(oop mh) { |
twisti@1568 | 1367 | if (WizardMode && Verbose) { |
twisti@1568 | 1368 | tty->print("\n--- next target: "); |
twisti@1568 | 1369 | mh->print(); |
twisti@1568 | 1370 | } |
twisti@1568 | 1371 | } |
twisti@1568 | 1372 | |
twisti@1568 | 1373 | static void print(Handle root, bool verbose, outputStream* out, TRAPS) { |
twisti@1568 | 1374 | ResourceMark rm; |
twisti@1568 | 1375 | MethodHandlePrinter printer(root, verbose, out, CHECK); |
twisti@1568 | 1376 | printer.walk(CHECK); |
twisti@1568 | 1377 | out->print("\n"); |
twisti@1568 | 1378 | } |
twisti@1568 | 1379 | static void print(Handle root, bool verbose = Verbose, outputStream* out = tty) { |
twisti@1568 | 1380 | EXCEPTION_MARK; |
twisti@1568 | 1381 | ResourceMark rm; |
twisti@1568 | 1382 | MethodHandlePrinter printer(root, verbose, out, THREAD); |
twisti@1568 | 1383 | if (!HAS_PENDING_EXCEPTION) |
twisti@1568 | 1384 | printer.walk(THREAD); |
twisti@1568 | 1385 | if (HAS_PENDING_EXCEPTION) { |
twisti@1568 | 1386 | oop ex = PENDING_EXCEPTION; |
twisti@1568 | 1387 | CLEAR_PENDING_EXCEPTION; |
twisti@1568 | 1388 | out->print("\n*** "); |
twisti@1568 | 1389 | if (ex != Universe::virtual_machine_error_instance()) |
twisti@1568 | 1390 | ex->print_on(out); |
twisti@1568 | 1391 | else |
twisti@1568 | 1392 | out->print("lose: %s", printer.lose_message()); |
twisti@1568 | 1393 | out->print("\n}\n"); |
twisti@1568 | 1394 | } |
twisti@1568 | 1395 | out->print("\n"); |
twisti@1568 | 1396 | } |
twisti@1568 | 1397 | }; |
twisti@1573 | 1398 | #endif // 0 |
twisti@1568 | 1399 | |
twisti@1568 | 1400 | extern "C" |
twisti@1568 | 1401 | void print_method_handle(oop mh) { |
jrose@2148 | 1402 | if (!mh->is_oop()) { |
jrose@2148 | 1403 | tty->print_cr("*** not a method handle: "INTPTR_FORMAT, (intptr_t)mh); |
jrose@2148 | 1404 | } else if (java_dyn_MethodHandle::is_instance(mh)) { |
twisti@1573 | 1405 | //MethodHandlePrinter::print(mh); |
twisti@1568 | 1406 | } else { |
twisti@1568 | 1407 | tty->print("*** not a method handle: "); |
twisti@1568 | 1408 | mh->print(); |
twisti@1568 | 1409 | } |
twisti@1568 | 1410 | } |
twisti@1568 | 1411 | |
twisti@1568 | 1412 | #endif // PRODUCT |