Mon, 04 Jan 2010 15:52:40 +0100
6894206: JVM needs a way to traverse method handle structures
Summary: We need a way to walk chained method handles in the JVM to call the right methods and to generate required bytecode adapters for the compilers.
Reviewed-by: kvn
jrose@1145 | 1 | /* |
jrose@1145 | 2 | * Copyright 1997-2009 Sun Microsystems, Inc. All Rights Reserved. |
jrose@1145 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
jrose@1145 | 4 | * |
jrose@1145 | 5 | * This code is free software; you can redistribute it and/or modify it |
jrose@1145 | 6 | * under the terms of the GNU General Public License version 2 only, as |
jrose@1145 | 7 | * published by the Free Software Foundation. |
jrose@1145 | 8 | * |
jrose@1145 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
jrose@1145 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
jrose@1145 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
jrose@1145 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
jrose@1145 | 13 | * accompanied this code). |
jrose@1145 | 14 | * |
jrose@1145 | 15 | * You should have received a copy of the GNU General Public License version |
jrose@1145 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
jrose@1145 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
jrose@1145 | 18 | * |
jrose@1145 | 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
jrose@1145 | 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
jrose@1145 | 21 | * have any questions. |
jrose@1145 | 22 | * |
jrose@1145 | 23 | */ |
jrose@1145 | 24 | |
jrose@1145 | 25 | #include "incls/_precompiled.incl" |
jrose@1145 | 26 | #include "incls/_methodHandles_x86.cpp.incl" |
jrose@1145 | 27 | |
jrose@1145 | 28 | #define __ _masm-> |
jrose@1145 | 29 | |
jrose@1145 | 30 | address MethodHandleEntry::start_compiled_entry(MacroAssembler* _masm, |
jrose@1145 | 31 | address interpreted_entry) { |
jrose@1145 | 32 | // Just before the actual machine code entry point, allocate space |
jrose@1145 | 33 | // for a MethodHandleEntry::Data record, so that we can manage everything |
jrose@1145 | 34 | // from one base pointer. |
jrose@1145 | 35 | __ align(wordSize); |
jrose@1145 | 36 | address target = __ pc() + sizeof(Data); |
jrose@1145 | 37 | while (__ pc() < target) { |
jrose@1145 | 38 | __ nop(); |
jrose@1145 | 39 | __ align(wordSize); |
jrose@1145 | 40 | } |
jrose@1145 | 41 | |
jrose@1145 | 42 | MethodHandleEntry* me = (MethodHandleEntry*) __ pc(); |
jrose@1145 | 43 | me->set_end_address(__ pc()); // set a temporary end_address |
jrose@1145 | 44 | me->set_from_interpreted_entry(interpreted_entry); |
jrose@1145 | 45 | me->set_type_checking_entry(NULL); |
jrose@1145 | 46 | |
jrose@1145 | 47 | return (address) me; |
jrose@1145 | 48 | } |
jrose@1145 | 49 | |
jrose@1145 | 50 | MethodHandleEntry* MethodHandleEntry::finish_compiled_entry(MacroAssembler* _masm, |
jrose@1145 | 51 | address start_addr) { |
jrose@1145 | 52 | MethodHandleEntry* me = (MethodHandleEntry*) start_addr; |
jrose@1145 | 53 | assert(me->end_address() == start_addr, "valid ME"); |
jrose@1145 | 54 | |
jrose@1145 | 55 | // Fill in the real end_address: |
jrose@1145 | 56 | __ align(wordSize); |
jrose@1145 | 57 | me->set_end_address(__ pc()); |
jrose@1145 | 58 | |
jrose@1145 | 59 | return me; |
jrose@1145 | 60 | } |
jrose@1145 | 61 | |
jrose@1145 | 62 | #ifdef ASSERT |
jrose@1145 | 63 | static void verify_argslot(MacroAssembler* _masm, Register rax_argslot, |
jrose@1145 | 64 | const char* error_message) { |
jrose@1145 | 65 | // Verify that argslot lies within (rsp, rbp]. |
jrose@1145 | 66 | Label L_ok, L_bad; |
jrose@1145 | 67 | __ cmpptr(rax_argslot, rbp); |
jrose@1145 | 68 | __ jcc(Assembler::above, L_bad); |
jrose@1145 | 69 | __ cmpptr(rsp, rax_argslot); |
jrose@1145 | 70 | __ jcc(Assembler::below, L_ok); |
jrose@1145 | 71 | __ bind(L_bad); |
jrose@1145 | 72 | __ stop(error_message); |
jrose@1145 | 73 | __ bind(L_ok); |
jrose@1145 | 74 | } |
jrose@1145 | 75 | #endif |
jrose@1145 | 76 | |
jrose@1145 | 77 | |
jrose@1145 | 78 | // Code generation |
jrose@1145 | 79 | address MethodHandles::generate_method_handle_interpreter_entry(MacroAssembler* _masm) { |
jrose@1145 | 80 | // rbx: methodOop |
jrose@1145 | 81 | // rcx: receiver method handle (must load from sp[MethodTypeForm.vmslots]) |
jrose@1145 | 82 | // rsi/r13: sender SP (must preserve; see prepare_to_jump_from_interpreted) |
jrose@1145 | 83 | // rdx: garbage temp, blown away |
jrose@1145 | 84 | |
jrose@1145 | 85 | Register rbx_method = rbx; |
jrose@1145 | 86 | Register rcx_recv = rcx; |
jrose@1145 | 87 | Register rax_mtype = rax; |
jrose@1145 | 88 | Register rdx_temp = rdx; |
jrose@1145 | 89 | |
jrose@1145 | 90 | // emit WrongMethodType path first, to enable jccb back-branch from main path |
jrose@1145 | 91 | Label wrong_method_type; |
jrose@1145 | 92 | __ bind(wrong_method_type); |
jrose@1145 | 93 | __ push(rax_mtype); // required mtype |
jrose@1145 | 94 | __ push(rcx_recv); // bad mh (1st stacked argument) |
jrose@1145 | 95 | __ jump(ExternalAddress(Interpreter::throw_WrongMethodType_entry())); |
jrose@1145 | 96 | |
jrose@1145 | 97 | // here's where control starts out: |
jrose@1145 | 98 | __ align(CodeEntryAlignment); |
jrose@1145 | 99 | address entry_point = __ pc(); |
jrose@1145 | 100 | |
jrose@1145 | 101 | // fetch the MethodType from the method handle into rax (the 'check' register) |
jrose@1145 | 102 | { |
jrose@1145 | 103 | Register tem = rbx_method; |
jrose@1145 | 104 | for (jint* pchase = methodOopDesc::method_type_offsets_chain(); (*pchase) != -1; pchase++) { |
jrose@1145 | 105 | __ movptr(rax_mtype, Address(tem, *pchase)); |
jrose@1145 | 106 | tem = rax_mtype; // in case there is another indirection |
jrose@1145 | 107 | } |
jrose@1145 | 108 | } |
jrose@1145 | 109 | Register rbx_temp = rbx_method; // done with incoming methodOop |
jrose@1145 | 110 | |
jrose@1145 | 111 | // given the MethodType, find out where the MH argument is buried |
jrose@1145 | 112 | __ movptr(rdx_temp, Address(rax_mtype, |
jrose@1145 | 113 | __ delayed_value(java_dyn_MethodType::form_offset_in_bytes, rbx_temp))); |
jrose@1145 | 114 | __ movl(rdx_temp, Address(rdx_temp, |
jrose@1145 | 115 | __ delayed_value(java_dyn_MethodTypeForm::vmslots_offset_in_bytes, rbx_temp))); |
jrose@1145 | 116 | __ movptr(rcx_recv, __ argument_address(rdx_temp)); |
jrose@1145 | 117 | |
jrose@1145 | 118 | __ check_method_handle_type(rax_mtype, rcx_recv, rdx_temp, wrong_method_type); |
jrose@1145 | 119 | __ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
jrose@1145 | 120 | |
jrose@1145 | 121 | return entry_point; |
jrose@1145 | 122 | } |
jrose@1145 | 123 | |
jrose@1145 | 124 | // Helper to insert argument slots into the stack. |
jrose@1145 | 125 | // arg_slots must be a multiple of stack_move_unit() and <= 0 |
jrose@1145 | 126 | void MethodHandles::insert_arg_slots(MacroAssembler* _masm, |
jrose@1145 | 127 | RegisterOrConstant arg_slots, |
jrose@1145 | 128 | int arg_mask, |
jrose@1145 | 129 | Register rax_argslot, |
jrose@1145 | 130 | Register rbx_temp, Register rdx_temp) { |
jrose@1145 | 131 | assert_different_registers(rax_argslot, rbx_temp, rdx_temp, |
jrose@1145 | 132 | (!arg_slots.is_register() ? rsp : arg_slots.as_register())); |
jrose@1145 | 133 | |
jrose@1145 | 134 | #ifdef ASSERT |
jrose@1145 | 135 | verify_argslot(_masm, rax_argslot, "insertion point must fall within current frame"); |
jrose@1145 | 136 | if (arg_slots.is_register()) { |
jrose@1145 | 137 | Label L_ok, L_bad; |
jrose@1145 | 138 | __ cmpptr(arg_slots.as_register(), (int32_t) NULL_WORD); |
jrose@1145 | 139 | __ jcc(Assembler::greater, L_bad); |
jrose@1145 | 140 | __ testl(arg_slots.as_register(), -stack_move_unit() - 1); |
jrose@1145 | 141 | __ jcc(Assembler::zero, L_ok); |
jrose@1145 | 142 | __ bind(L_bad); |
jrose@1145 | 143 | __ stop("assert arg_slots <= 0 and clear low bits"); |
jrose@1145 | 144 | __ bind(L_ok); |
jrose@1145 | 145 | } else { |
jrose@1145 | 146 | assert(arg_slots.as_constant() <= 0, ""); |
jrose@1145 | 147 | assert(arg_slots.as_constant() % -stack_move_unit() == 0, ""); |
jrose@1145 | 148 | } |
jrose@1145 | 149 | #endif //ASSERT |
jrose@1145 | 150 | |
jrose@1145 | 151 | #ifdef _LP64 |
jrose@1145 | 152 | if (arg_slots.is_register()) { |
jrose@1145 | 153 | // clean high bits of stack motion register (was loaded as an int) |
jrose@1145 | 154 | __ movslq(arg_slots.as_register(), arg_slots.as_register()); |
jrose@1145 | 155 | } |
jrose@1145 | 156 | #endif |
jrose@1145 | 157 | |
jrose@1145 | 158 | // Make space on the stack for the inserted argument(s). |
jrose@1145 | 159 | // Then pull down everything shallower than rax_argslot. |
jrose@1145 | 160 | // The stacked return address gets pulled down with everything else. |
jrose@1145 | 161 | // That is, copy [rsp, argslot) downward by -size words. In pseudo-code: |
jrose@1145 | 162 | // rsp -= size; |
jrose@1145 | 163 | // for (rdx = rsp + size; rdx < argslot; rdx++) |
jrose@1145 | 164 | // rdx[-size] = rdx[0] |
jrose@1145 | 165 | // argslot -= size; |
jrose@1145 | 166 | __ mov(rdx_temp, rsp); // source pointer for copy |
jrose@1145 | 167 | __ lea(rsp, Address(rsp, arg_slots, Address::times_ptr)); |
jrose@1145 | 168 | { |
jrose@1145 | 169 | Label loop; |
jrose@1145 | 170 | __ bind(loop); |
jrose@1145 | 171 | // pull one word down each time through the loop |
jrose@1145 | 172 | __ movptr(rbx_temp, Address(rdx_temp, 0)); |
jrose@1145 | 173 | __ movptr(Address(rdx_temp, arg_slots, Address::times_ptr), rbx_temp); |
jrose@1145 | 174 | __ addptr(rdx_temp, wordSize); |
jrose@1145 | 175 | __ cmpptr(rdx_temp, rax_argslot); |
jrose@1145 | 176 | __ jcc(Assembler::less, loop); |
jrose@1145 | 177 | } |
jrose@1145 | 178 | |
jrose@1145 | 179 | // Now move the argslot down, to point to the opened-up space. |
jrose@1145 | 180 | __ lea(rax_argslot, Address(rax_argslot, arg_slots, Address::times_ptr)); |
jrose@1145 | 181 | |
jrose@1145 | 182 | if (TaggedStackInterpreter && arg_mask != _INSERT_NO_MASK) { |
jrose@1145 | 183 | // The caller has specified a bitmask of tags to put into the opened space. |
jrose@1145 | 184 | // This only works when the arg_slots value is an assembly-time constant. |
jrose@1145 | 185 | int constant_arg_slots = arg_slots.as_constant() / stack_move_unit(); |
jrose@1145 | 186 | int tag_offset = Interpreter::tag_offset_in_bytes() - Interpreter::value_offset_in_bytes(); |
jrose@1145 | 187 | for (int slot = 0; slot < constant_arg_slots; slot++) { |
jrose@1145 | 188 | BasicType slot_type = ((arg_mask & (1 << slot)) == 0 ? T_OBJECT : T_INT); |
jrose@1145 | 189 | int slot_offset = Interpreter::stackElementSize() * slot; |
jrose@1145 | 190 | Address tag_addr(rax_argslot, slot_offset + tag_offset); |
jrose@1145 | 191 | __ movptr(tag_addr, frame::tag_for_basic_type(slot_type)); |
jrose@1145 | 192 | } |
jrose@1145 | 193 | // Note that the new argument slots are tagged properly but contain |
jrose@1145 | 194 | // garbage at this point. The value portions must be initialized |
jrose@1145 | 195 | // by the caller. (Especially references!) |
jrose@1145 | 196 | } |
jrose@1145 | 197 | } |
jrose@1145 | 198 | |
jrose@1145 | 199 | // Helper to remove argument slots from the stack. |
jrose@1145 | 200 | // arg_slots must be a multiple of stack_move_unit() and >= 0 |
jrose@1145 | 201 | void MethodHandles::remove_arg_slots(MacroAssembler* _masm, |
jrose@1145 | 202 | RegisterOrConstant arg_slots, |
jrose@1145 | 203 | Register rax_argslot, |
jrose@1145 | 204 | Register rbx_temp, Register rdx_temp) { |
jrose@1145 | 205 | assert_different_registers(rax_argslot, rbx_temp, rdx_temp, |
jrose@1145 | 206 | (!arg_slots.is_register() ? rsp : arg_slots.as_register())); |
jrose@1145 | 207 | |
jrose@1145 | 208 | #ifdef ASSERT |
jrose@1145 | 209 | { |
jrose@1145 | 210 | // Verify that [argslot..argslot+size) lies within (rsp, rbp). |
jrose@1145 | 211 | Label L_ok, L_bad; |
jrose@1145 | 212 | __ lea(rbx_temp, Address(rax_argslot, arg_slots, Address::times_ptr)); |
jrose@1145 | 213 | __ cmpptr(rbx_temp, rbp); |
jrose@1145 | 214 | __ jcc(Assembler::above, L_bad); |
jrose@1145 | 215 | __ cmpptr(rsp, rax_argslot); |
jrose@1145 | 216 | __ jcc(Assembler::below, L_ok); |
jrose@1145 | 217 | __ bind(L_bad); |
jrose@1145 | 218 | __ stop("deleted argument(s) must fall within current frame"); |
jrose@1145 | 219 | __ bind(L_ok); |
jrose@1145 | 220 | } |
jrose@1145 | 221 | if (arg_slots.is_register()) { |
jrose@1145 | 222 | Label L_ok, L_bad; |
jrose@1145 | 223 | __ cmpptr(arg_slots.as_register(), (int32_t) NULL_WORD); |
jrose@1145 | 224 | __ jcc(Assembler::less, L_bad); |
jrose@1145 | 225 | __ testl(arg_slots.as_register(), -stack_move_unit() - 1); |
jrose@1145 | 226 | __ jcc(Assembler::zero, L_ok); |
jrose@1145 | 227 | __ bind(L_bad); |
jrose@1145 | 228 | __ stop("assert arg_slots >= 0 and clear low bits"); |
jrose@1145 | 229 | __ bind(L_ok); |
jrose@1145 | 230 | } else { |
jrose@1145 | 231 | assert(arg_slots.as_constant() >= 0, ""); |
jrose@1145 | 232 | assert(arg_slots.as_constant() % -stack_move_unit() == 0, ""); |
jrose@1145 | 233 | } |
jrose@1145 | 234 | #endif //ASSERT |
jrose@1145 | 235 | |
jrose@1145 | 236 | #ifdef _LP64 |
jrose@1145 | 237 | if (false) { // not needed, since register is positive |
jrose@1145 | 238 | // clean high bits of stack motion register (was loaded as an int) |
jrose@1145 | 239 | if (arg_slots.is_register()) |
jrose@1145 | 240 | __ movslq(arg_slots.as_register(), arg_slots.as_register()); |
jrose@1145 | 241 | } |
jrose@1145 | 242 | #endif |
jrose@1145 | 243 | |
jrose@1145 | 244 | // Pull up everything shallower than rax_argslot. |
jrose@1145 | 245 | // Then remove the excess space on the stack. |
jrose@1145 | 246 | // The stacked return address gets pulled up with everything else. |
jrose@1145 | 247 | // That is, copy [rsp, argslot) upward by size words. In pseudo-code: |
jrose@1145 | 248 | // for (rdx = argslot-1; rdx >= rsp; --rdx) |
jrose@1145 | 249 | // rdx[size] = rdx[0] |
jrose@1145 | 250 | // argslot += size; |
jrose@1145 | 251 | // rsp += size; |
jrose@1145 | 252 | __ lea(rdx_temp, Address(rax_argslot, -wordSize)); // source pointer for copy |
jrose@1145 | 253 | { |
jrose@1145 | 254 | Label loop; |
jrose@1145 | 255 | __ bind(loop); |
jrose@1145 | 256 | // pull one word up each time through the loop |
jrose@1145 | 257 | __ movptr(rbx_temp, Address(rdx_temp, 0)); |
jrose@1145 | 258 | __ movptr(Address(rdx_temp, arg_slots, Address::times_ptr), rbx_temp); |
jrose@1145 | 259 | __ addptr(rdx_temp, -wordSize); |
jrose@1145 | 260 | __ cmpptr(rdx_temp, rsp); |
jrose@1145 | 261 | __ jcc(Assembler::greaterEqual, loop); |
jrose@1145 | 262 | } |
jrose@1145 | 263 | |
jrose@1145 | 264 | // Now move the argslot up, to point to the just-copied block. |
jrose@1145 | 265 | __ lea(rsp, Address(rsp, arg_slots, Address::times_ptr)); |
jrose@1145 | 266 | // And adjust the argslot address to point at the deletion point. |
jrose@1145 | 267 | __ lea(rax_argslot, Address(rax_argslot, arg_slots, Address::times_ptr)); |
jrose@1145 | 268 | } |
jrose@1145 | 269 | |
jrose@1145 | 270 | #ifndef PRODUCT |
twisti@1568 | 271 | extern "C" void print_method_handle(oop mh); |
jrose@1145 | 272 | void trace_method_handle_stub(const char* adaptername, |
twisti@1568 | 273 | oop mh, |
jrose@1145 | 274 | intptr_t* entry_sp, |
jrose@1474 | 275 | intptr_t* saved_sp, |
jrose@1474 | 276 | intptr_t* saved_bp) { |
jrose@1145 | 277 | // called as a leaf from native code: do not block the JVM! |
jrose@1474 | 278 | intptr_t* last_sp = (intptr_t*) saved_bp[frame::interpreter_frame_last_sp_offset]; |
jrose@1474 | 279 | intptr_t* base_sp = (intptr_t*) saved_bp[frame::interpreter_frame_monitor_block_top_offset]; |
jrose@1474 | 280 | printf("MH %s mh="INTPTR_FORMAT" sp=("INTPTR_FORMAT"+"INTX_FORMAT") stack_size="INTX_FORMAT" bp="INTPTR_FORMAT"\n", |
jrose@1474 | 281 | adaptername, (intptr_t)mh, (intptr_t)entry_sp, (intptr_t)(saved_sp - entry_sp), (intptr_t)(base_sp - last_sp), (intptr_t)saved_bp); |
jrose@1474 | 282 | if (last_sp != saved_sp) |
jrose@1474 | 283 | printf("*** last_sp="INTPTR_FORMAT"\n", (intptr_t)last_sp); |
twisti@1568 | 284 | if (Verbose) print_method_handle(mh); |
jrose@1145 | 285 | } |
jrose@1145 | 286 | #endif //PRODUCT |
jrose@1145 | 287 | |
jrose@1145 | 288 | // Generate an "entry" field for a method handle. |
jrose@1145 | 289 | // This determines how the method handle will respond to calls. |
jrose@1145 | 290 | void MethodHandles::generate_method_handle_stub(MacroAssembler* _masm, MethodHandles::EntryKind ek) { |
jrose@1145 | 291 | // Here is the register state during an interpreted call, |
jrose@1145 | 292 | // as set up by generate_method_handle_interpreter_entry(): |
jrose@1145 | 293 | // - rbx: garbage temp (was MethodHandle.invoke methodOop, unused) |
jrose@1145 | 294 | // - rcx: receiver method handle |
jrose@1145 | 295 | // - rax: method handle type (only used by the check_mtype entry point) |
jrose@1145 | 296 | // - rsi/r13: sender SP (must preserve; see prepare_to_jump_from_interpreted) |
jrose@1145 | 297 | // - rdx: garbage temp, can blow away |
jrose@1145 | 298 | |
jrose@1145 | 299 | Register rcx_recv = rcx; |
jrose@1145 | 300 | Register rax_argslot = rax; |
jrose@1145 | 301 | Register rbx_temp = rbx; |
jrose@1145 | 302 | Register rdx_temp = rdx; |
jrose@1145 | 303 | |
jrose@1474 | 304 | // This guy is set up by prepare_to_jump_from_interpreted (from interpreted calls) |
jrose@1474 | 305 | // and gen_c2i_adapter (from compiled calls): |
jrose@1474 | 306 | Register saved_last_sp = LP64_ONLY(r13) NOT_LP64(rsi); |
jrose@1474 | 307 | |
jrose@1145 | 308 | guarantee(java_dyn_MethodHandle::vmentry_offset_in_bytes() != 0, "must have offsets"); |
jrose@1145 | 309 | |
jrose@1145 | 310 | // some handy addresses |
jrose@1145 | 311 | Address rbx_method_fie( rbx, methodOopDesc::from_interpreted_offset() ); |
jrose@1145 | 312 | |
jrose@1145 | 313 | Address rcx_mh_vmtarget( rcx_recv, java_dyn_MethodHandle::vmtarget_offset_in_bytes() ); |
jrose@1145 | 314 | Address rcx_dmh_vmindex( rcx_recv, sun_dyn_DirectMethodHandle::vmindex_offset_in_bytes() ); |
jrose@1145 | 315 | |
jrose@1145 | 316 | Address rcx_bmh_vmargslot( rcx_recv, sun_dyn_BoundMethodHandle::vmargslot_offset_in_bytes() ); |
jrose@1145 | 317 | Address rcx_bmh_argument( rcx_recv, sun_dyn_BoundMethodHandle::argument_offset_in_bytes() ); |
jrose@1145 | 318 | |
jrose@1145 | 319 | Address rcx_amh_vmargslot( rcx_recv, sun_dyn_AdapterMethodHandle::vmargslot_offset_in_bytes() ); |
jrose@1145 | 320 | Address rcx_amh_argument( rcx_recv, sun_dyn_AdapterMethodHandle::argument_offset_in_bytes() ); |
jrose@1145 | 321 | Address rcx_amh_conversion( rcx_recv, sun_dyn_AdapterMethodHandle::conversion_offset_in_bytes() ); |
jrose@1145 | 322 | Address vmarg; // __ argument_address(vmargslot) |
jrose@1145 | 323 | |
jrose@1145 | 324 | int tag_offset = -1; |
jrose@1145 | 325 | if (TaggedStackInterpreter) { |
jrose@1145 | 326 | tag_offset = Interpreter::tag_offset_in_bytes() - Interpreter::value_offset_in_bytes(); |
jrose@1145 | 327 | assert(tag_offset = wordSize, "stack grows as expected"); |
jrose@1145 | 328 | } |
jrose@1145 | 329 | |
jrose@1474 | 330 | const int java_mirror_offset = klassOopDesc::klass_part_offset_in_bytes() + Klass::java_mirror_offset_in_bytes(); |
jrose@1474 | 331 | |
jrose@1145 | 332 | if (have_entry(ek)) { |
jrose@1145 | 333 | __ nop(); // empty stubs make SG sick |
jrose@1145 | 334 | return; |
jrose@1145 | 335 | } |
jrose@1145 | 336 | |
jrose@1145 | 337 | address interp_entry = __ pc(); |
jrose@1145 | 338 | if (UseCompressedOops) __ unimplemented("UseCompressedOops"); |
jrose@1145 | 339 | |
jrose@1145 | 340 | #ifndef PRODUCT |
jrose@1145 | 341 | if (TraceMethodHandles) { |
jrose@1145 | 342 | __ push(rax); __ push(rbx); __ push(rcx); __ push(rdx); __ push(rsi); __ push(rdi); |
jrose@1145 | 343 | __ lea(rax, Address(rsp, wordSize*6)); // entry_sp |
jrose@1145 | 344 | // arguments: |
jrose@1474 | 345 | __ push(rbp); // interpreter frame pointer |
jrose@1145 | 346 | __ push(rsi); // saved_sp |
jrose@1145 | 347 | __ push(rax); // entry_sp |
jrose@1145 | 348 | __ push(rcx); // mh |
jrose@1145 | 349 | __ push(rcx); |
jrose@1145 | 350 | __ movptr(Address(rsp, 0), (intptr_t)entry_name(ek)); |
jrose@1474 | 351 | __ call_VM_leaf(CAST_FROM_FN_PTR(address, trace_method_handle_stub), 5); |
jrose@1145 | 352 | __ pop(rdi); __ pop(rsi); __ pop(rdx); __ pop(rcx); __ pop(rbx); __ pop(rax); |
jrose@1145 | 353 | } |
jrose@1145 | 354 | #endif //PRODUCT |
jrose@1145 | 355 | |
jrose@1145 | 356 | switch ((int) ek) { |
jrose@1474 | 357 | case _raise_exception: |
jrose@1145 | 358 | { |
jrose@1474 | 359 | // Not a real MH entry, but rather shared code for raising an exception. |
jrose@1474 | 360 | // Extra local arguments are pushed on stack, as required type at TOS+8, |
jrose@1474 | 361 | // failing object (or NULL) at TOS+4, failing bytecode type at TOS. |
jrose@1474 | 362 | // Beyond those local arguments are the PC, of course. |
jrose@1474 | 363 | Register rdx_code = rdx_temp; |
jrose@1474 | 364 | Register rcx_fail = rcx_recv; |
jrose@1474 | 365 | Register rax_want = rax_argslot; |
jrose@1474 | 366 | Register rdi_pc = rdi; |
jrose@1474 | 367 | __ pop(rdx_code); // TOS+0 |
jrose@1474 | 368 | __ pop(rcx_fail); // TOS+4 |
jrose@1474 | 369 | __ pop(rax_want); // TOS+8 |
jrose@1474 | 370 | __ pop(rdi_pc); // caller PC |
jrose@1145 | 371 | |
jrose@1474 | 372 | __ mov(rsp, rsi); // cut the stack back to where the caller started |
jrose@1145 | 373 | |
jrose@1474 | 374 | // Repush the arguments as if coming from the interpreter. |
jrose@1474 | 375 | if (TaggedStackInterpreter) __ push(frame::tag_for_basic_type(T_INT)); |
jrose@1474 | 376 | __ push(rdx_code); |
jrose@1474 | 377 | if (TaggedStackInterpreter) __ push(frame::tag_for_basic_type(T_OBJECT)); |
jrose@1474 | 378 | __ push(rcx_fail); |
jrose@1474 | 379 | if (TaggedStackInterpreter) __ push(frame::tag_for_basic_type(T_OBJECT)); |
jrose@1474 | 380 | __ push(rax_want); |
jrose@1145 | 381 | |
jrose@1474 | 382 | Register rbx_method = rbx_temp; |
jrose@1474 | 383 | Label no_method; |
jrose@1474 | 384 | // FIXME: fill in _raise_exception_method with a suitable sun.dyn method |
jrose@1474 | 385 | __ movptr(rbx_method, ExternalAddress((address) &_raise_exception_method)); |
jrose@1474 | 386 | __ testptr(rbx_method, rbx_method); |
jrose@1474 | 387 | __ jcc(Assembler::zero, no_method); |
jrose@1474 | 388 | int jobject_oop_offset = 0; |
jrose@1474 | 389 | __ movptr(rbx_method, Address(rbx_method, jobject_oop_offset)); // dereference the jobject |
jrose@1474 | 390 | __ testptr(rbx_method, rbx_method); |
jrose@1474 | 391 | __ jcc(Assembler::zero, no_method); |
jrose@1474 | 392 | __ verify_oop(rbx_method); |
jrose@1474 | 393 | __ push(rdi_pc); // and restore caller PC |
jrose@1474 | 394 | __ jmp(rbx_method_fie); |
jrose@1145 | 395 | |
jrose@1474 | 396 | // If we get here, the Java runtime did not do its job of creating the exception. |
jrose@1474 | 397 | // Do something that is at least causes a valid throw from the interpreter. |
jrose@1474 | 398 | __ bind(no_method); |
jrose@1474 | 399 | __ pop(rax_want); |
jrose@1474 | 400 | if (TaggedStackInterpreter) __ pop(rcx_fail); |
jrose@1474 | 401 | __ pop(rcx_fail); |
jrose@1474 | 402 | __ push(rax_want); |
jrose@1474 | 403 | __ push(rcx_fail); |
jrose@1145 | 404 | __ jump(ExternalAddress(Interpreter::throw_WrongMethodType_entry())); |
jrose@1145 | 405 | } |
jrose@1145 | 406 | break; |
jrose@1145 | 407 | |
jrose@1145 | 408 | case _invokestatic_mh: |
jrose@1145 | 409 | case _invokespecial_mh: |
jrose@1145 | 410 | { |
jrose@1145 | 411 | Register rbx_method = rbx_temp; |
jrose@1145 | 412 | __ movptr(rbx_method, rcx_mh_vmtarget); // target is a methodOop |
jrose@1145 | 413 | __ verify_oop(rbx_method); |
jrose@1145 | 414 | // same as TemplateTable::invokestatic or invokespecial, |
jrose@1145 | 415 | // minus the CP setup and profiling: |
jrose@1145 | 416 | if (ek == _invokespecial_mh) { |
jrose@1145 | 417 | // Must load & check the first argument before entering the target method. |
jrose@1145 | 418 | __ load_method_handle_vmslots(rax_argslot, rcx_recv, rdx_temp); |
jrose@1145 | 419 | __ movptr(rcx_recv, __ argument_address(rax_argslot, -1)); |
jrose@1145 | 420 | __ null_check(rcx_recv); |
jrose@1145 | 421 | __ verify_oop(rcx_recv); |
jrose@1145 | 422 | } |
jrose@1145 | 423 | __ jmp(rbx_method_fie); |
jrose@1145 | 424 | } |
jrose@1145 | 425 | break; |
jrose@1145 | 426 | |
jrose@1145 | 427 | case _invokevirtual_mh: |
jrose@1145 | 428 | { |
jrose@1145 | 429 | // same as TemplateTable::invokevirtual, |
jrose@1145 | 430 | // minus the CP setup and profiling: |
jrose@1145 | 431 | |
jrose@1145 | 432 | // pick out the vtable index and receiver offset from the MH, |
jrose@1145 | 433 | // and then we can discard it: |
jrose@1145 | 434 | __ load_method_handle_vmslots(rax_argslot, rcx_recv, rdx_temp); |
jrose@1145 | 435 | Register rbx_index = rbx_temp; |
jrose@1145 | 436 | __ movl(rbx_index, rcx_dmh_vmindex); |
jrose@1145 | 437 | // Note: The verifier allows us to ignore rcx_mh_vmtarget. |
jrose@1145 | 438 | __ movptr(rcx_recv, __ argument_address(rax_argslot, -1)); |
jrose@1145 | 439 | __ null_check(rcx_recv, oopDesc::klass_offset_in_bytes()); |
jrose@1145 | 440 | |
jrose@1145 | 441 | // get receiver klass |
jrose@1145 | 442 | Register rax_klass = rax_argslot; |
jrose@1145 | 443 | __ load_klass(rax_klass, rcx_recv); |
jrose@1145 | 444 | __ verify_oop(rax_klass); |
jrose@1145 | 445 | |
jrose@1145 | 446 | // get target methodOop & entry point |
jrose@1145 | 447 | const int base = instanceKlass::vtable_start_offset() * wordSize; |
jrose@1145 | 448 | assert(vtableEntry::size() * wordSize == wordSize, "adjust the scaling in the code below"); |
jrose@1145 | 449 | Address vtable_entry_addr(rax_klass, |
jrose@1145 | 450 | rbx_index, Address::times_ptr, |
jrose@1145 | 451 | base + vtableEntry::method_offset_in_bytes()); |
jrose@1145 | 452 | Register rbx_method = rbx_temp; |
twisti@1543 | 453 | __ movptr(rbx_method, vtable_entry_addr); |
jrose@1145 | 454 | |
jrose@1145 | 455 | __ verify_oop(rbx_method); |
jrose@1145 | 456 | __ jmp(rbx_method_fie); |
jrose@1145 | 457 | } |
jrose@1145 | 458 | break; |
jrose@1145 | 459 | |
jrose@1145 | 460 | case _invokeinterface_mh: |
jrose@1145 | 461 | { |
jrose@1145 | 462 | // same as TemplateTable::invokeinterface, |
jrose@1145 | 463 | // minus the CP setup and profiling: |
jrose@1145 | 464 | |
jrose@1145 | 465 | // pick out the interface and itable index from the MH. |
jrose@1145 | 466 | __ load_method_handle_vmslots(rax_argslot, rcx_recv, rdx_temp); |
jrose@1145 | 467 | Register rdx_intf = rdx_temp; |
jrose@1145 | 468 | Register rbx_index = rbx_temp; |
jrose@1145 | 469 | __ movptr(rdx_intf, rcx_mh_vmtarget); |
jrose@1145 | 470 | __ movl(rbx_index, rcx_dmh_vmindex); |
jrose@1145 | 471 | __ movptr(rcx_recv, __ argument_address(rax_argslot, -1)); |
jrose@1145 | 472 | __ null_check(rcx_recv, oopDesc::klass_offset_in_bytes()); |
jrose@1145 | 473 | |
jrose@1145 | 474 | // get receiver klass |
jrose@1145 | 475 | Register rax_klass = rax_argslot; |
jrose@1145 | 476 | __ load_klass(rax_klass, rcx_recv); |
jrose@1145 | 477 | __ verify_oop(rax_klass); |
jrose@1145 | 478 | |
jrose@1474 | 479 | Register rdi_temp = rdi; |
jrose@1145 | 480 | Register rbx_method = rbx_index; |
jrose@1145 | 481 | |
jrose@1145 | 482 | // get interface klass |
jrose@1145 | 483 | Label no_such_interface; |
jrose@1145 | 484 | __ verify_oop(rdx_intf); |
jrose@1145 | 485 | __ lookup_interface_method(rax_klass, rdx_intf, |
jrose@1145 | 486 | // note: next two args must be the same: |
jrose@1145 | 487 | rbx_index, rbx_method, |
jrose@1474 | 488 | rdi_temp, |
jrose@1145 | 489 | no_such_interface); |
jrose@1145 | 490 | |
jrose@1145 | 491 | __ verify_oop(rbx_method); |
jrose@1145 | 492 | __ jmp(rbx_method_fie); |
jrose@1145 | 493 | __ hlt(); |
jrose@1145 | 494 | |
jrose@1145 | 495 | __ bind(no_such_interface); |
jrose@1145 | 496 | // Throw an exception. |
jrose@1145 | 497 | // For historical reasons, it will be IncompatibleClassChangeError. |
jrose@1474 | 498 | __ pushptr(Address(rdx_intf, java_mirror_offset)); // required interface |
jrose@1474 | 499 | __ push(rcx_recv); // bad receiver |
jrose@1474 | 500 | __ push((int)Bytecodes::_invokeinterface); // who is complaining? |
jrose@1474 | 501 | __ jump(ExternalAddress(from_interpreted_entry(_raise_exception))); |
jrose@1145 | 502 | } |
jrose@1145 | 503 | break; |
jrose@1145 | 504 | |
jrose@1145 | 505 | case _bound_ref_mh: |
jrose@1145 | 506 | case _bound_int_mh: |
jrose@1145 | 507 | case _bound_long_mh: |
jrose@1145 | 508 | case _bound_ref_direct_mh: |
jrose@1145 | 509 | case _bound_int_direct_mh: |
jrose@1145 | 510 | case _bound_long_direct_mh: |
jrose@1145 | 511 | { |
jrose@1145 | 512 | bool direct_to_method = (ek >= _bound_ref_direct_mh); |
jrose@1145 | 513 | BasicType arg_type = T_ILLEGAL; |
jrose@1145 | 514 | if (ek == _bound_long_mh || ek == _bound_long_direct_mh) { |
jrose@1145 | 515 | arg_type = T_LONG; |
jrose@1145 | 516 | } else if (ek == _bound_int_mh || ek == _bound_int_direct_mh) { |
jrose@1145 | 517 | arg_type = T_INT; |
jrose@1145 | 518 | } else { |
jrose@1145 | 519 | assert(ek == _bound_ref_mh || ek == _bound_ref_direct_mh, "must be ref"); |
jrose@1145 | 520 | arg_type = T_OBJECT; |
jrose@1145 | 521 | } |
jrose@1145 | 522 | int arg_slots = type2size[arg_type]; |
jrose@1145 | 523 | int arg_mask = (arg_type == T_OBJECT ? _INSERT_REF_MASK : |
jrose@1145 | 524 | arg_slots == 1 ? _INSERT_INT_MASK : _INSERT_LONG_MASK); |
jrose@1145 | 525 | |
jrose@1145 | 526 | // make room for the new argument: |
jrose@1145 | 527 | __ movl(rax_argslot, rcx_bmh_vmargslot); |
jrose@1145 | 528 | __ lea(rax_argslot, __ argument_address(rax_argslot)); |
jrose@1145 | 529 | insert_arg_slots(_masm, arg_slots * stack_move_unit(), arg_mask, |
jrose@1145 | 530 | rax_argslot, rbx_temp, rdx_temp); |
jrose@1145 | 531 | |
jrose@1145 | 532 | // store bound argument into the new stack slot: |
jrose@1145 | 533 | __ movptr(rbx_temp, rcx_bmh_argument); |
jrose@1145 | 534 | Address prim_value_addr(rbx_temp, java_lang_boxing_object::value_offset_in_bytes(arg_type)); |
jrose@1145 | 535 | if (arg_type == T_OBJECT) { |
jrose@1145 | 536 | __ movptr(Address(rax_argslot, 0), rbx_temp); |
jrose@1145 | 537 | } else { |
jrose@1145 | 538 | __ load_sized_value(rbx_temp, prim_value_addr, |
jrose@1145 | 539 | type2aelembytes(arg_type), is_signed_subword_type(arg_type)); |
jrose@1145 | 540 | __ movptr(Address(rax_argslot, 0), rbx_temp); |
jrose@1145 | 541 | #ifndef _LP64 |
jrose@1145 | 542 | if (arg_slots == 2) { |
jrose@1145 | 543 | __ movl(rbx_temp, prim_value_addr.plus_disp(wordSize)); |
jrose@1145 | 544 | __ movl(Address(rax_argslot, Interpreter::stackElementSize()), rbx_temp); |
jrose@1145 | 545 | } |
jrose@1145 | 546 | #endif //_LP64 |
jrose@1145 | 547 | break; |
jrose@1145 | 548 | } |
jrose@1145 | 549 | |
jrose@1145 | 550 | if (direct_to_method) { |
jrose@1145 | 551 | Register rbx_method = rbx_temp; |
jrose@1145 | 552 | __ movptr(rbx_method, rcx_mh_vmtarget); |
jrose@1145 | 553 | __ verify_oop(rbx_method); |
jrose@1145 | 554 | __ jmp(rbx_method_fie); |
jrose@1145 | 555 | } else { |
jrose@1145 | 556 | __ movptr(rcx_recv, rcx_mh_vmtarget); |
jrose@1145 | 557 | __ verify_oop(rcx_recv); |
jrose@1145 | 558 | __ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
jrose@1145 | 559 | } |
jrose@1145 | 560 | } |
jrose@1145 | 561 | break; |
jrose@1145 | 562 | |
jrose@1145 | 563 | case _adapter_retype_only: |
jrose@1474 | 564 | case _adapter_retype_raw: |
jrose@1145 | 565 | // immediately jump to the next MH layer: |
jrose@1145 | 566 | __ movptr(rcx_recv, rcx_mh_vmtarget); |
jrose@1145 | 567 | __ verify_oop(rcx_recv); |
jrose@1145 | 568 | __ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
jrose@1145 | 569 | // This is OK when all parameter types widen. |
jrose@1145 | 570 | // It is also OK when a return type narrows. |
jrose@1145 | 571 | break; |
jrose@1145 | 572 | |
jrose@1145 | 573 | case _adapter_check_cast: |
jrose@1145 | 574 | { |
jrose@1145 | 575 | // temps: |
jrose@1145 | 576 | Register rbx_klass = rbx_temp; // interesting AMH data |
jrose@1145 | 577 | |
jrose@1145 | 578 | // check a reference argument before jumping to the next layer of MH: |
jrose@1145 | 579 | __ movl(rax_argslot, rcx_amh_vmargslot); |
jrose@1145 | 580 | vmarg = __ argument_address(rax_argslot); |
jrose@1145 | 581 | |
jrose@1145 | 582 | // What class are we casting to? |
jrose@1145 | 583 | __ movptr(rbx_klass, rcx_amh_argument); // this is a Class object! |
jrose@1145 | 584 | __ movptr(rbx_klass, Address(rbx_klass, java_lang_Class::klass_offset_in_bytes())); |
jrose@1145 | 585 | |
jrose@1145 | 586 | Label done; |
jrose@1145 | 587 | __ movptr(rdx_temp, vmarg); |
jrose@1145 | 588 | __ testl(rdx_temp, rdx_temp); |
jrose@1145 | 589 | __ jcc(Assembler::zero, done); // no cast if null |
jrose@1145 | 590 | __ load_klass(rdx_temp, rdx_temp); |
jrose@1145 | 591 | |
jrose@1145 | 592 | // live at this point: |
jrose@1145 | 593 | // - rbx_klass: klass required by the target method |
jrose@1145 | 594 | // - rdx_temp: argument klass to test |
jrose@1474 | 595 | // - rcx_recv: adapter method handle |
jrose@1145 | 596 | __ check_klass_subtype(rdx_temp, rbx_klass, rax_argslot, done); |
jrose@1145 | 597 | |
jrose@1145 | 598 | // If we get here, the type check failed! |
jrose@1145 | 599 | // Call the wrong_method_type stub, passing the failing argument type in rax. |
jrose@1145 | 600 | Register rax_mtype = rax_argslot; |
jrose@1474 | 601 | __ movl(rax_argslot, rcx_amh_vmargslot); // reload argslot field |
jrose@1474 | 602 | __ movptr(rdx_temp, vmarg); |
jrose@1474 | 603 | |
jrose@1474 | 604 | __ pushptr(rcx_amh_argument); // required class |
jrose@1474 | 605 | __ push(rdx_temp); // bad object |
jrose@1474 | 606 | __ push((int)Bytecodes::_checkcast); // who is complaining? |
jrose@1474 | 607 | __ jump(ExternalAddress(from_interpreted_entry(_raise_exception))); |
jrose@1145 | 608 | |
jrose@1145 | 609 | __ bind(done); |
jrose@1474 | 610 | // get the new MH: |
jrose@1474 | 611 | __ movptr(rcx_recv, rcx_mh_vmtarget); |
jrose@1145 | 612 | __ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
jrose@1145 | 613 | } |
jrose@1145 | 614 | break; |
jrose@1145 | 615 | |
jrose@1145 | 616 | case _adapter_prim_to_prim: |
jrose@1145 | 617 | case _adapter_ref_to_prim: |
jrose@1145 | 618 | // handled completely by optimized cases |
jrose@1145 | 619 | __ stop("init_AdapterMethodHandle should not issue this"); |
jrose@1145 | 620 | break; |
jrose@1145 | 621 | |
jrose@1145 | 622 | case _adapter_opt_i2i: // optimized subcase of adapt_prim_to_prim |
jrose@1145 | 623 | //case _adapter_opt_f2i: // optimized subcase of adapt_prim_to_prim |
jrose@1145 | 624 | case _adapter_opt_l2i: // optimized subcase of adapt_prim_to_prim |
jrose@1145 | 625 | case _adapter_opt_unboxi: // optimized subcase of adapt_ref_to_prim |
jrose@1145 | 626 | { |
jrose@1145 | 627 | // perform an in-place conversion to int or an int subword |
jrose@1145 | 628 | __ movl(rax_argslot, rcx_amh_vmargslot); |
jrose@1145 | 629 | vmarg = __ argument_address(rax_argslot); |
jrose@1145 | 630 | |
jrose@1145 | 631 | switch (ek) { |
jrose@1145 | 632 | case _adapter_opt_i2i: |
jrose@1145 | 633 | __ movl(rdx_temp, vmarg); |
jrose@1145 | 634 | break; |
jrose@1145 | 635 | case _adapter_opt_l2i: |
jrose@1145 | 636 | { |
jrose@1145 | 637 | // just delete the extra slot; on a little-endian machine we keep the first |
jrose@1145 | 638 | __ lea(rax_argslot, __ argument_address(rax_argslot, 1)); |
jrose@1145 | 639 | remove_arg_slots(_masm, -stack_move_unit(), |
jrose@1145 | 640 | rax_argslot, rbx_temp, rdx_temp); |
jrose@1145 | 641 | vmarg = Address(rax_argslot, -Interpreter::stackElementSize()); |
jrose@1145 | 642 | __ movl(rdx_temp, vmarg); |
jrose@1145 | 643 | } |
jrose@1145 | 644 | break; |
jrose@1145 | 645 | case _adapter_opt_unboxi: |
jrose@1145 | 646 | { |
jrose@1145 | 647 | // Load the value up from the heap. |
jrose@1145 | 648 | __ movptr(rdx_temp, vmarg); |
jrose@1145 | 649 | int value_offset = java_lang_boxing_object::value_offset_in_bytes(T_INT); |
jrose@1145 | 650 | #ifdef ASSERT |
jrose@1145 | 651 | for (int bt = T_BOOLEAN; bt < T_INT; bt++) { |
jrose@1145 | 652 | if (is_subword_type(BasicType(bt))) |
jrose@1145 | 653 | assert(value_offset == java_lang_boxing_object::value_offset_in_bytes(BasicType(bt)), ""); |
jrose@1145 | 654 | } |
jrose@1145 | 655 | #endif |
jrose@1145 | 656 | __ null_check(rdx_temp, value_offset); |
jrose@1145 | 657 | __ movl(rdx_temp, Address(rdx_temp, value_offset)); |
jrose@1145 | 658 | // We load this as a word. Because we are little-endian, |
jrose@1145 | 659 | // the low bits will be correct, but the high bits may need cleaning. |
jrose@1145 | 660 | // The vminfo will guide us to clean those bits. |
jrose@1145 | 661 | } |
jrose@1145 | 662 | break; |
jrose@1145 | 663 | default: |
jrose@1145 | 664 | assert(false, ""); |
jrose@1145 | 665 | } |
jrose@1145 | 666 | goto finish_int_conversion; |
jrose@1145 | 667 | } |
jrose@1145 | 668 | |
jrose@1145 | 669 | finish_int_conversion: |
jrose@1145 | 670 | { |
jrose@1145 | 671 | Register rbx_vminfo = rbx_temp; |
jrose@1145 | 672 | __ movl(rbx_vminfo, rcx_amh_conversion); |
jrose@1145 | 673 | assert(CONV_VMINFO_SHIFT == 0, "preshifted"); |
jrose@1145 | 674 | |
jrose@1145 | 675 | // get the new MH: |
jrose@1145 | 676 | __ movptr(rcx_recv, rcx_mh_vmtarget); |
jrose@1145 | 677 | // (now we are done with the old MH) |
jrose@1145 | 678 | |
jrose@1145 | 679 | // original 32-bit vmdata word must be of this form: |
jrose@1145 | 680 | // | MBZ:16 | signBitCount:8 | srcDstTypes:8 | conversionOp:8 | |
jrose@1145 | 681 | __ xchgl(rcx, rbx_vminfo); // free rcx for shifts |
jrose@1145 | 682 | __ shll(rdx_temp /*, rcx*/); |
jrose@1145 | 683 | Label zero_extend, done; |
jrose@1145 | 684 | __ testl(rcx, CONV_VMINFO_SIGN_FLAG); |
jrose@1145 | 685 | __ jcc(Assembler::zero, zero_extend); |
jrose@1145 | 686 | |
jrose@1145 | 687 | // this path is taken for int->byte, int->short |
jrose@1145 | 688 | __ sarl(rdx_temp /*, rcx*/); |
jrose@1145 | 689 | __ jmp(done); |
jrose@1145 | 690 | |
jrose@1145 | 691 | __ bind(zero_extend); |
jrose@1145 | 692 | // this is taken for int->char |
jrose@1145 | 693 | __ shrl(rdx_temp /*, rcx*/); |
jrose@1145 | 694 | |
jrose@1145 | 695 | __ bind(done); |
jrose@1145 | 696 | __ movptr(vmarg, rdx_temp); |
jrose@1145 | 697 | __ xchgl(rcx, rbx_vminfo); // restore rcx_recv |
jrose@1145 | 698 | |
jrose@1145 | 699 | __ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
jrose@1145 | 700 | } |
jrose@1145 | 701 | break; |
jrose@1145 | 702 | |
jrose@1145 | 703 | case _adapter_opt_i2l: // optimized subcase of adapt_prim_to_prim |
jrose@1145 | 704 | case _adapter_opt_unboxl: // optimized subcase of adapt_ref_to_prim |
jrose@1145 | 705 | { |
jrose@1145 | 706 | // perform an in-place int-to-long or ref-to-long conversion |
jrose@1145 | 707 | __ movl(rax_argslot, rcx_amh_vmargslot); |
jrose@1145 | 708 | |
jrose@1145 | 709 | // on a little-endian machine we keep the first slot and add another after |
jrose@1145 | 710 | __ lea(rax_argslot, __ argument_address(rax_argslot, 1)); |
jrose@1145 | 711 | insert_arg_slots(_masm, stack_move_unit(), _INSERT_INT_MASK, |
jrose@1145 | 712 | rax_argslot, rbx_temp, rdx_temp); |
jrose@1145 | 713 | Address vmarg1(rax_argslot, -Interpreter::stackElementSize()); |
jrose@1145 | 714 | Address vmarg2 = vmarg1.plus_disp(Interpreter::stackElementSize()); |
jrose@1145 | 715 | |
jrose@1145 | 716 | switch (ek) { |
jrose@1145 | 717 | case _adapter_opt_i2l: |
jrose@1145 | 718 | { |
jrose@1145 | 719 | __ movl(rdx_temp, vmarg1); |
jrose@1145 | 720 | __ sarl(rdx_temp, 31); // __ extend_sign() |
jrose@1145 | 721 | __ movl(vmarg2, rdx_temp); // store second word |
jrose@1145 | 722 | } |
jrose@1145 | 723 | break; |
jrose@1145 | 724 | case _adapter_opt_unboxl: |
jrose@1145 | 725 | { |
jrose@1145 | 726 | // Load the value up from the heap. |
jrose@1145 | 727 | __ movptr(rdx_temp, vmarg1); |
jrose@1145 | 728 | int value_offset = java_lang_boxing_object::value_offset_in_bytes(T_LONG); |
jrose@1145 | 729 | assert(value_offset == java_lang_boxing_object::value_offset_in_bytes(T_DOUBLE), ""); |
jrose@1145 | 730 | __ null_check(rdx_temp, value_offset); |
jrose@1145 | 731 | __ movl(rbx_temp, Address(rdx_temp, value_offset + 0*BytesPerInt)); |
jrose@1145 | 732 | __ movl(rdx_temp, Address(rdx_temp, value_offset + 1*BytesPerInt)); |
jrose@1145 | 733 | __ movl(vmarg1, rbx_temp); |
jrose@1145 | 734 | __ movl(vmarg2, rdx_temp); |
jrose@1145 | 735 | } |
jrose@1145 | 736 | break; |
jrose@1145 | 737 | default: |
jrose@1145 | 738 | assert(false, ""); |
jrose@1145 | 739 | } |
jrose@1145 | 740 | |
jrose@1145 | 741 | __ movptr(rcx_recv, rcx_mh_vmtarget); |
jrose@1145 | 742 | __ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
jrose@1145 | 743 | } |
jrose@1145 | 744 | break; |
jrose@1145 | 745 | |
jrose@1145 | 746 | case _adapter_opt_f2d: // optimized subcase of adapt_prim_to_prim |
jrose@1145 | 747 | case _adapter_opt_d2f: // optimized subcase of adapt_prim_to_prim |
jrose@1145 | 748 | { |
jrose@1145 | 749 | // perform an in-place floating primitive conversion |
jrose@1145 | 750 | __ movl(rax_argslot, rcx_amh_vmargslot); |
jrose@1145 | 751 | __ lea(rax_argslot, __ argument_address(rax_argslot, 1)); |
jrose@1145 | 752 | if (ek == _adapter_opt_f2d) { |
jrose@1145 | 753 | insert_arg_slots(_masm, stack_move_unit(), _INSERT_INT_MASK, |
jrose@1145 | 754 | rax_argslot, rbx_temp, rdx_temp); |
jrose@1145 | 755 | } |
jrose@1145 | 756 | Address vmarg(rax_argslot, -Interpreter::stackElementSize()); |
jrose@1145 | 757 | |
jrose@1145 | 758 | #ifdef _LP64 |
jrose@1145 | 759 | if (ek == _adapter_opt_f2d) { |
jrose@1145 | 760 | __ movflt(xmm0, vmarg); |
jrose@1145 | 761 | __ cvtss2sd(xmm0, xmm0); |
jrose@1145 | 762 | __ movdbl(vmarg, xmm0); |
jrose@1145 | 763 | } else { |
jrose@1145 | 764 | __ movdbl(xmm0, vmarg); |
jrose@1145 | 765 | __ cvtsd2ss(xmm0, xmm0); |
jrose@1145 | 766 | __ movflt(vmarg, xmm0); |
jrose@1145 | 767 | } |
jrose@1145 | 768 | #else //_LP64 |
jrose@1145 | 769 | if (ek == _adapter_opt_f2d) { |
jrose@1145 | 770 | __ fld_s(vmarg); // load float to ST0 |
jrose@1145 | 771 | __ fstp_s(vmarg); // store single |
jrose@1145 | 772 | } else if (!TaggedStackInterpreter) { |
jrose@1145 | 773 | __ fld_d(vmarg); // load double to ST0 |
jrose@1145 | 774 | __ fstp_s(vmarg); // store single |
jrose@1145 | 775 | } else { |
jrose@1145 | 776 | Address vmarg_tag = vmarg.plus_disp(tag_offset); |
jrose@1145 | 777 | Address vmarg2 = vmarg.plus_disp(Interpreter::stackElementSize()); |
jrose@1145 | 778 | // vmarg2_tag does not participate in this code |
jrose@1145 | 779 | Register rbx_tag = rbx_temp; |
jrose@1145 | 780 | __ movl(rbx_tag, vmarg_tag); // preserve tag |
jrose@1145 | 781 | __ movl(rdx_temp, vmarg2); // get second word of double |
jrose@1145 | 782 | __ movl(vmarg_tag, rdx_temp); // align with first word |
jrose@1145 | 783 | __ fld_d(vmarg); // load double to ST0 |
jrose@1145 | 784 | __ movl(vmarg_tag, rbx_tag); // restore tag |
jrose@1145 | 785 | __ fstp_s(vmarg); // store single |
jrose@1145 | 786 | } |
jrose@1145 | 787 | #endif //_LP64 |
jrose@1145 | 788 | |
jrose@1145 | 789 | if (ek == _adapter_opt_d2f) { |
jrose@1145 | 790 | remove_arg_slots(_masm, -stack_move_unit(), |
jrose@1145 | 791 | rax_argslot, rbx_temp, rdx_temp); |
jrose@1145 | 792 | } |
jrose@1145 | 793 | |
jrose@1145 | 794 | __ movptr(rcx_recv, rcx_mh_vmtarget); |
jrose@1145 | 795 | __ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
jrose@1145 | 796 | } |
jrose@1145 | 797 | break; |
jrose@1145 | 798 | |
jrose@1145 | 799 | case _adapter_prim_to_ref: |
jrose@1145 | 800 | __ unimplemented(entry_name(ek)); // %%% FIXME: NYI |
jrose@1145 | 801 | break; |
jrose@1145 | 802 | |
jrose@1145 | 803 | case _adapter_swap_args: |
jrose@1145 | 804 | case _adapter_rot_args: |
jrose@1145 | 805 | // handled completely by optimized cases |
jrose@1145 | 806 | __ stop("init_AdapterMethodHandle should not issue this"); |
jrose@1145 | 807 | break; |
jrose@1145 | 808 | |
jrose@1145 | 809 | case _adapter_opt_swap_1: |
jrose@1145 | 810 | case _adapter_opt_swap_2: |
jrose@1145 | 811 | case _adapter_opt_rot_1_up: |
jrose@1145 | 812 | case _adapter_opt_rot_1_down: |
jrose@1145 | 813 | case _adapter_opt_rot_2_up: |
jrose@1145 | 814 | case _adapter_opt_rot_2_down: |
jrose@1145 | 815 | { |
jrose@1145 | 816 | int rotate = 0, swap_slots = 0; |
jrose@1145 | 817 | switch ((int)ek) { |
jrose@1145 | 818 | case _adapter_opt_swap_1: swap_slots = 1; break; |
jrose@1145 | 819 | case _adapter_opt_swap_2: swap_slots = 2; break; |
jrose@1145 | 820 | case _adapter_opt_rot_1_up: swap_slots = 1; rotate++; break; |
jrose@1145 | 821 | case _adapter_opt_rot_1_down: swap_slots = 1; rotate--; break; |
jrose@1145 | 822 | case _adapter_opt_rot_2_up: swap_slots = 2; rotate++; break; |
jrose@1145 | 823 | case _adapter_opt_rot_2_down: swap_slots = 2; rotate--; break; |
jrose@1145 | 824 | default: assert(false, ""); |
jrose@1145 | 825 | } |
jrose@1145 | 826 | |
jrose@1145 | 827 | // the real size of the move must be doubled if TaggedStackInterpreter: |
jrose@1145 | 828 | int swap_bytes = (int)( swap_slots * Interpreter::stackElementWords() * wordSize ); |
jrose@1145 | 829 | |
jrose@1145 | 830 | // 'argslot' is the position of the first argument to swap |
jrose@1145 | 831 | __ movl(rax_argslot, rcx_amh_vmargslot); |
jrose@1145 | 832 | __ lea(rax_argslot, __ argument_address(rax_argslot)); |
jrose@1145 | 833 | |
jrose@1145 | 834 | // 'vminfo' is the second |
jrose@1145 | 835 | Register rbx_destslot = rbx_temp; |
jrose@1145 | 836 | __ movl(rbx_destslot, rcx_amh_conversion); |
jrose@1145 | 837 | assert(CONV_VMINFO_SHIFT == 0, "preshifted"); |
jrose@1145 | 838 | __ andl(rbx_destslot, CONV_VMINFO_MASK); |
jrose@1145 | 839 | __ lea(rbx_destslot, __ argument_address(rbx_destslot)); |
jrose@1145 | 840 | DEBUG_ONLY(verify_argslot(_masm, rbx_destslot, "swap point must fall within current frame")); |
jrose@1145 | 841 | |
jrose@1145 | 842 | if (!rotate) { |
jrose@1145 | 843 | for (int i = 0; i < swap_bytes; i += wordSize) { |
jrose@1145 | 844 | __ movptr(rdx_temp, Address(rax_argslot , i)); |
jrose@1145 | 845 | __ push(rdx_temp); |
jrose@1145 | 846 | __ movptr(rdx_temp, Address(rbx_destslot, i)); |
jrose@1145 | 847 | __ movptr(Address(rax_argslot, i), rdx_temp); |
jrose@1145 | 848 | __ pop(rdx_temp); |
jrose@1145 | 849 | __ movptr(Address(rbx_destslot, i), rdx_temp); |
jrose@1145 | 850 | } |
jrose@1145 | 851 | } else { |
jrose@1145 | 852 | // push the first chunk, which is going to get overwritten |
jrose@1145 | 853 | for (int i = swap_bytes; (i -= wordSize) >= 0; ) { |
jrose@1145 | 854 | __ movptr(rdx_temp, Address(rax_argslot, i)); |
jrose@1145 | 855 | __ push(rdx_temp); |
jrose@1145 | 856 | } |
jrose@1145 | 857 | |
jrose@1145 | 858 | if (rotate > 0) { |
jrose@1145 | 859 | // rotate upward |
jrose@1145 | 860 | __ subptr(rax_argslot, swap_bytes); |
jrose@1145 | 861 | #ifdef ASSERT |
jrose@1145 | 862 | { |
jrose@1145 | 863 | // Verify that argslot > destslot, by at least swap_bytes. |
jrose@1145 | 864 | Label L_ok; |
jrose@1145 | 865 | __ cmpptr(rax_argslot, rbx_destslot); |
jrose@1145 | 866 | __ jcc(Assembler::aboveEqual, L_ok); |
jrose@1145 | 867 | __ stop("source must be above destination (upward rotation)"); |
jrose@1145 | 868 | __ bind(L_ok); |
jrose@1145 | 869 | } |
jrose@1145 | 870 | #endif |
jrose@1145 | 871 | // work argslot down to destslot, copying contiguous data upwards |
jrose@1145 | 872 | // pseudo-code: |
jrose@1145 | 873 | // rax = src_addr - swap_bytes |
jrose@1145 | 874 | // rbx = dest_addr |
jrose@1145 | 875 | // while (rax >= rbx) *(rax + swap_bytes) = *(rax + 0), rax--; |
jrose@1145 | 876 | Label loop; |
jrose@1145 | 877 | __ bind(loop); |
jrose@1145 | 878 | __ movptr(rdx_temp, Address(rax_argslot, 0)); |
jrose@1145 | 879 | __ movptr(Address(rax_argslot, swap_bytes), rdx_temp); |
jrose@1145 | 880 | __ addptr(rax_argslot, -wordSize); |
jrose@1145 | 881 | __ cmpptr(rax_argslot, rbx_destslot); |
jrose@1145 | 882 | __ jcc(Assembler::aboveEqual, loop); |
jrose@1145 | 883 | } else { |
jrose@1145 | 884 | __ addptr(rax_argslot, swap_bytes); |
jrose@1145 | 885 | #ifdef ASSERT |
jrose@1145 | 886 | { |
jrose@1145 | 887 | // Verify that argslot < destslot, by at least swap_bytes. |
jrose@1145 | 888 | Label L_ok; |
jrose@1145 | 889 | __ cmpptr(rax_argslot, rbx_destslot); |
jrose@1145 | 890 | __ jcc(Assembler::belowEqual, L_ok); |
jrose@1145 | 891 | __ stop("source must be below destination (downward rotation)"); |
jrose@1145 | 892 | __ bind(L_ok); |
jrose@1145 | 893 | } |
jrose@1145 | 894 | #endif |
jrose@1145 | 895 | // work argslot up to destslot, copying contiguous data downwards |
jrose@1145 | 896 | // pseudo-code: |
jrose@1145 | 897 | // rax = src_addr + swap_bytes |
jrose@1145 | 898 | // rbx = dest_addr |
jrose@1145 | 899 | // while (rax <= rbx) *(rax - swap_bytes) = *(rax + 0), rax++; |
jrose@1145 | 900 | Label loop; |
jrose@1145 | 901 | __ bind(loop); |
jrose@1145 | 902 | __ movptr(rdx_temp, Address(rax_argslot, 0)); |
jrose@1145 | 903 | __ movptr(Address(rax_argslot, -swap_bytes), rdx_temp); |
jrose@1145 | 904 | __ addptr(rax_argslot, wordSize); |
jrose@1145 | 905 | __ cmpptr(rax_argslot, rbx_destslot); |
jrose@1145 | 906 | __ jcc(Assembler::belowEqual, loop); |
jrose@1145 | 907 | } |
jrose@1145 | 908 | |
jrose@1145 | 909 | // pop the original first chunk into the destination slot, now free |
jrose@1145 | 910 | for (int i = 0; i < swap_bytes; i += wordSize) { |
jrose@1145 | 911 | __ pop(rdx_temp); |
jrose@1145 | 912 | __ movptr(Address(rbx_destslot, i), rdx_temp); |
jrose@1145 | 913 | } |
jrose@1145 | 914 | } |
jrose@1145 | 915 | |
jrose@1145 | 916 | __ movptr(rcx_recv, rcx_mh_vmtarget); |
jrose@1145 | 917 | __ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
jrose@1145 | 918 | } |
jrose@1145 | 919 | break; |
jrose@1145 | 920 | |
jrose@1145 | 921 | case _adapter_dup_args: |
jrose@1145 | 922 | { |
jrose@1145 | 923 | // 'argslot' is the position of the first argument to duplicate |
jrose@1145 | 924 | __ movl(rax_argslot, rcx_amh_vmargslot); |
jrose@1145 | 925 | __ lea(rax_argslot, __ argument_address(rax_argslot)); |
jrose@1145 | 926 | |
jrose@1145 | 927 | // 'stack_move' is negative number of words to duplicate |
jrose@1145 | 928 | Register rdx_stack_move = rdx_temp; |
jrose@1145 | 929 | __ movl(rdx_stack_move, rcx_amh_conversion); |
jrose@1145 | 930 | __ sarl(rdx_stack_move, CONV_STACK_MOVE_SHIFT); |
jrose@1145 | 931 | |
jrose@1145 | 932 | int argslot0_num = 0; |
jrose@1145 | 933 | Address argslot0 = __ argument_address(RegisterOrConstant(argslot0_num)); |
jrose@1145 | 934 | assert(argslot0.base() == rsp, ""); |
jrose@1145 | 935 | int pre_arg_size = argslot0.disp(); |
jrose@1145 | 936 | assert(pre_arg_size % wordSize == 0, ""); |
jrose@1145 | 937 | assert(pre_arg_size > 0, "must include PC"); |
jrose@1145 | 938 | |
jrose@1145 | 939 | // remember the old rsp+1 (argslot[0]) |
jrose@1145 | 940 | Register rbx_oldarg = rbx_temp; |
jrose@1145 | 941 | __ lea(rbx_oldarg, argslot0); |
jrose@1145 | 942 | |
jrose@1145 | 943 | // move rsp down to make room for dups |
jrose@1145 | 944 | __ lea(rsp, Address(rsp, rdx_stack_move, Address::times_ptr)); |
jrose@1145 | 945 | |
jrose@1145 | 946 | // compute the new rsp+1 (argslot[0]) |
jrose@1145 | 947 | Register rdx_newarg = rdx_temp; |
jrose@1145 | 948 | __ lea(rdx_newarg, argslot0); |
jrose@1145 | 949 | |
jrose@1145 | 950 | __ push(rdi); // need a temp |
jrose@1145 | 951 | // (preceding push must be done after arg addresses are taken!) |
jrose@1145 | 952 | |
jrose@1145 | 953 | // pull down the pre_arg_size data (PC) |
jrose@1145 | 954 | for (int i = -pre_arg_size; i < 0; i += wordSize) { |
jrose@1145 | 955 | __ movptr(rdi, Address(rbx_oldarg, i)); |
jrose@1145 | 956 | __ movptr(Address(rdx_newarg, i), rdi); |
jrose@1145 | 957 | } |
jrose@1145 | 958 | |
jrose@1145 | 959 | // copy from rax_argslot[0...] down to new_rsp[1...] |
jrose@1145 | 960 | // pseudo-code: |
jrose@1145 | 961 | // rbx = old_rsp+1 |
jrose@1145 | 962 | // rdx = new_rsp+1 |
jrose@1145 | 963 | // rax = argslot |
jrose@1145 | 964 | // while (rdx < rbx) *rdx++ = *rax++ |
jrose@1145 | 965 | Label loop; |
jrose@1145 | 966 | __ bind(loop); |
jrose@1145 | 967 | __ movptr(rdi, Address(rax_argslot, 0)); |
jrose@1145 | 968 | __ movptr(Address(rdx_newarg, 0), rdi); |
jrose@1145 | 969 | __ addptr(rax_argslot, wordSize); |
jrose@1145 | 970 | __ addptr(rdx_newarg, wordSize); |
jrose@1145 | 971 | __ cmpptr(rdx_newarg, rbx_oldarg); |
jrose@1145 | 972 | __ jcc(Assembler::less, loop); |
jrose@1145 | 973 | |
jrose@1145 | 974 | __ pop(rdi); // restore temp |
jrose@1145 | 975 | |
jrose@1145 | 976 | __ movptr(rcx_recv, rcx_mh_vmtarget); |
jrose@1145 | 977 | __ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
jrose@1145 | 978 | } |
jrose@1145 | 979 | break; |
jrose@1145 | 980 | |
jrose@1145 | 981 | case _adapter_drop_args: |
jrose@1145 | 982 | { |
jrose@1145 | 983 | // 'argslot' is the position of the first argument to nuke |
jrose@1145 | 984 | __ movl(rax_argslot, rcx_amh_vmargslot); |
jrose@1145 | 985 | __ lea(rax_argslot, __ argument_address(rax_argslot)); |
jrose@1145 | 986 | |
jrose@1145 | 987 | __ push(rdi); // need a temp |
jrose@1145 | 988 | // (must do previous push after argslot address is taken) |
jrose@1145 | 989 | |
jrose@1145 | 990 | // 'stack_move' is number of words to drop |
jrose@1145 | 991 | Register rdi_stack_move = rdi; |
jrose@1145 | 992 | __ movl(rdi_stack_move, rcx_amh_conversion); |
jrose@1145 | 993 | __ sarl(rdi_stack_move, CONV_STACK_MOVE_SHIFT); |
jrose@1145 | 994 | remove_arg_slots(_masm, rdi_stack_move, |
jrose@1145 | 995 | rax_argslot, rbx_temp, rdx_temp); |
jrose@1145 | 996 | |
jrose@1145 | 997 | __ pop(rdi); // restore temp |
jrose@1145 | 998 | |
jrose@1145 | 999 | __ movptr(rcx_recv, rcx_mh_vmtarget); |
jrose@1145 | 1000 | __ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
jrose@1145 | 1001 | } |
jrose@1145 | 1002 | break; |
jrose@1145 | 1003 | |
jrose@1145 | 1004 | case _adapter_collect_args: |
jrose@1145 | 1005 | __ unimplemented(entry_name(ek)); // %%% FIXME: NYI |
jrose@1145 | 1006 | break; |
jrose@1145 | 1007 | |
jrose@1145 | 1008 | case _adapter_spread_args: |
jrose@1145 | 1009 | // handled completely by optimized cases |
jrose@1145 | 1010 | __ stop("init_AdapterMethodHandle should not issue this"); |
jrose@1145 | 1011 | break; |
jrose@1145 | 1012 | |
jrose@1145 | 1013 | case _adapter_opt_spread_0: |
jrose@1145 | 1014 | case _adapter_opt_spread_1: |
jrose@1145 | 1015 | case _adapter_opt_spread_more: |
jrose@1145 | 1016 | { |
jrose@1145 | 1017 | // spread an array out into a group of arguments |
jrose@1145 | 1018 | int length_constant = -1; |
jrose@1145 | 1019 | switch (ek) { |
jrose@1145 | 1020 | case _adapter_opt_spread_0: length_constant = 0; break; |
jrose@1145 | 1021 | case _adapter_opt_spread_1: length_constant = 1; break; |
jrose@1145 | 1022 | } |
jrose@1145 | 1023 | |
jrose@1145 | 1024 | // find the address of the array argument |
jrose@1145 | 1025 | __ movl(rax_argslot, rcx_amh_vmargslot); |
jrose@1145 | 1026 | __ lea(rax_argslot, __ argument_address(rax_argslot)); |
jrose@1145 | 1027 | |
jrose@1145 | 1028 | // grab some temps |
jrose@1145 | 1029 | { __ push(rsi); __ push(rdi); } |
jrose@1145 | 1030 | // (preceding pushes must be done after argslot address is taken!) |
jrose@1145 | 1031 | #define UNPUSH_RSI_RDI \ |
jrose@1145 | 1032 | { __ pop(rdi); __ pop(rsi); } |
jrose@1145 | 1033 | |
jrose@1145 | 1034 | // arx_argslot points both to the array and to the first output arg |
jrose@1145 | 1035 | vmarg = Address(rax_argslot, 0); |
jrose@1145 | 1036 | |
jrose@1145 | 1037 | // Get the array value. |
jrose@1145 | 1038 | Register rsi_array = rsi; |
jrose@1145 | 1039 | Register rdx_array_klass = rdx_temp; |
jrose@1145 | 1040 | BasicType elem_type = T_OBJECT; |
jrose@1145 | 1041 | int length_offset = arrayOopDesc::length_offset_in_bytes(); |
jrose@1145 | 1042 | int elem0_offset = arrayOopDesc::base_offset_in_bytes(elem_type); |
jrose@1145 | 1043 | __ movptr(rsi_array, vmarg); |
jrose@1145 | 1044 | Label skip_array_check; |
jrose@1145 | 1045 | if (length_constant == 0) { |
jrose@1145 | 1046 | __ testptr(rsi_array, rsi_array); |
jrose@1145 | 1047 | __ jcc(Assembler::zero, skip_array_check); |
jrose@1145 | 1048 | } |
jrose@1145 | 1049 | __ null_check(rsi_array, oopDesc::klass_offset_in_bytes()); |
jrose@1145 | 1050 | __ load_klass(rdx_array_klass, rsi_array); |
jrose@1145 | 1051 | |
jrose@1145 | 1052 | // Check the array type. |
jrose@1145 | 1053 | Register rbx_klass = rbx_temp; |
jrose@1145 | 1054 | __ movptr(rbx_klass, rcx_amh_argument); // this is a Class object! |
jrose@1145 | 1055 | __ movptr(rbx_klass, Address(rbx_klass, java_lang_Class::klass_offset_in_bytes())); |
jrose@1145 | 1056 | |
jrose@1145 | 1057 | Label ok_array_klass, bad_array_klass, bad_array_length; |
jrose@1145 | 1058 | __ check_klass_subtype(rdx_array_klass, rbx_klass, rdi, ok_array_klass); |
jrose@1145 | 1059 | // If we get here, the type check failed! |
jrose@1145 | 1060 | __ jmp(bad_array_klass); |
jrose@1145 | 1061 | __ bind(ok_array_klass); |
jrose@1145 | 1062 | |
jrose@1145 | 1063 | // Check length. |
jrose@1145 | 1064 | if (length_constant >= 0) { |
jrose@1145 | 1065 | __ cmpl(Address(rsi_array, length_offset), length_constant); |
jrose@1145 | 1066 | } else { |
jrose@1145 | 1067 | Register rbx_vminfo = rbx_temp; |
jrose@1145 | 1068 | __ movl(rbx_vminfo, rcx_amh_conversion); |
jrose@1145 | 1069 | assert(CONV_VMINFO_SHIFT == 0, "preshifted"); |
jrose@1145 | 1070 | __ andl(rbx_vminfo, CONV_VMINFO_MASK); |
jrose@1145 | 1071 | __ cmpl(rbx_vminfo, Address(rsi_array, length_offset)); |
jrose@1145 | 1072 | } |
jrose@1145 | 1073 | __ jcc(Assembler::notEqual, bad_array_length); |
jrose@1145 | 1074 | |
jrose@1145 | 1075 | Register rdx_argslot_limit = rdx_temp; |
jrose@1145 | 1076 | |
jrose@1145 | 1077 | // Array length checks out. Now insert any required stack slots. |
jrose@1145 | 1078 | if (length_constant == -1) { |
jrose@1145 | 1079 | // Form a pointer to the end of the affected region. |
jrose@1145 | 1080 | __ lea(rdx_argslot_limit, Address(rax_argslot, Interpreter::stackElementSize())); |
jrose@1145 | 1081 | // 'stack_move' is negative number of words to insert |
jrose@1145 | 1082 | Register rdi_stack_move = rdi; |
jrose@1145 | 1083 | __ movl(rdi_stack_move, rcx_amh_conversion); |
jrose@1145 | 1084 | __ sarl(rdi_stack_move, CONV_STACK_MOVE_SHIFT); |
jrose@1145 | 1085 | Register rsi_temp = rsi_array; // spill this |
jrose@1145 | 1086 | insert_arg_slots(_masm, rdi_stack_move, -1, |
jrose@1145 | 1087 | rax_argslot, rbx_temp, rsi_temp); |
jrose@1145 | 1088 | // reload the array (since rsi was killed) |
jrose@1145 | 1089 | __ movptr(rsi_array, vmarg); |
jrose@1145 | 1090 | } else if (length_constant > 1) { |
jrose@1145 | 1091 | int arg_mask = 0; |
jrose@1145 | 1092 | int new_slots = (length_constant - 1); |
jrose@1145 | 1093 | for (int i = 0; i < new_slots; i++) { |
jrose@1145 | 1094 | arg_mask <<= 1; |
jrose@1145 | 1095 | arg_mask |= _INSERT_REF_MASK; |
jrose@1145 | 1096 | } |
jrose@1145 | 1097 | insert_arg_slots(_masm, new_slots * stack_move_unit(), arg_mask, |
jrose@1145 | 1098 | rax_argslot, rbx_temp, rdx_temp); |
jrose@1145 | 1099 | } else if (length_constant == 1) { |
jrose@1145 | 1100 | // no stack resizing required |
jrose@1145 | 1101 | } else if (length_constant == 0) { |
jrose@1145 | 1102 | remove_arg_slots(_masm, -stack_move_unit(), |
jrose@1145 | 1103 | rax_argslot, rbx_temp, rdx_temp); |
jrose@1145 | 1104 | } |
jrose@1145 | 1105 | |
jrose@1145 | 1106 | // Copy from the array to the new slots. |
jrose@1145 | 1107 | // Note: Stack change code preserves integrity of rax_argslot pointer. |
jrose@1145 | 1108 | // So even after slot insertions, rax_argslot still points to first argument. |
jrose@1145 | 1109 | if (length_constant == -1) { |
jrose@1145 | 1110 | // [rax_argslot, rdx_argslot_limit) is the area we are inserting into. |
jrose@1145 | 1111 | Register rsi_source = rsi_array; |
jrose@1145 | 1112 | __ lea(rsi_source, Address(rsi_array, elem0_offset)); |
jrose@1145 | 1113 | Label loop; |
jrose@1145 | 1114 | __ bind(loop); |
jrose@1145 | 1115 | __ movptr(rbx_temp, Address(rsi_source, 0)); |
jrose@1145 | 1116 | __ movptr(Address(rax_argslot, 0), rbx_temp); |
jrose@1145 | 1117 | __ addptr(rsi_source, type2aelembytes(elem_type)); |
jrose@1145 | 1118 | if (TaggedStackInterpreter) { |
jrose@1145 | 1119 | __ movptr(Address(rax_argslot, tag_offset), |
jrose@1145 | 1120 | frame::tag_for_basic_type(elem_type)); |
jrose@1145 | 1121 | } |
jrose@1145 | 1122 | __ addptr(rax_argslot, Interpreter::stackElementSize()); |
jrose@1145 | 1123 | __ cmpptr(rax_argslot, rdx_argslot_limit); |
jrose@1145 | 1124 | __ jcc(Assembler::less, loop); |
jrose@1145 | 1125 | } else if (length_constant == 0) { |
jrose@1145 | 1126 | __ bind(skip_array_check); |
jrose@1145 | 1127 | // nothing to copy |
jrose@1145 | 1128 | } else { |
jrose@1145 | 1129 | int elem_offset = elem0_offset; |
jrose@1145 | 1130 | int slot_offset = 0; |
jrose@1145 | 1131 | for (int index = 0; index < length_constant; index++) { |
jrose@1145 | 1132 | __ movptr(rbx_temp, Address(rsi_array, elem_offset)); |
jrose@1145 | 1133 | __ movptr(Address(rax_argslot, slot_offset), rbx_temp); |
jrose@1145 | 1134 | elem_offset += type2aelembytes(elem_type); |
jrose@1145 | 1135 | if (TaggedStackInterpreter) { |
jrose@1145 | 1136 | __ movptr(Address(rax_argslot, slot_offset + tag_offset), |
jrose@1145 | 1137 | frame::tag_for_basic_type(elem_type)); |
jrose@1145 | 1138 | } |
jrose@1145 | 1139 | slot_offset += Interpreter::stackElementSize(); |
jrose@1145 | 1140 | } |
jrose@1145 | 1141 | } |
jrose@1145 | 1142 | |
jrose@1145 | 1143 | // Arguments are spread. Move to next method handle. |
jrose@1145 | 1144 | UNPUSH_RSI_RDI; |
jrose@1145 | 1145 | __ movptr(rcx_recv, rcx_mh_vmtarget); |
jrose@1145 | 1146 | __ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
jrose@1145 | 1147 | |
jrose@1145 | 1148 | __ bind(bad_array_klass); |
jrose@1145 | 1149 | UNPUSH_RSI_RDI; |
jrose@1474 | 1150 | __ pushptr(Address(rdx_array_klass, java_mirror_offset)); // required type |
jrose@1474 | 1151 | __ pushptr(vmarg); // bad array |
jrose@1474 | 1152 | __ push((int)Bytecodes::_aaload); // who is complaining? |
jrose@1474 | 1153 | __ jump(ExternalAddress(from_interpreted_entry(_raise_exception))); |
jrose@1145 | 1154 | |
jrose@1145 | 1155 | __ bind(bad_array_length); |
jrose@1145 | 1156 | UNPUSH_RSI_RDI; |
jrose@1474 | 1157 | __ push(rcx_recv); // AMH requiring a certain length |
jrose@1474 | 1158 | __ pushptr(vmarg); // bad array |
jrose@1474 | 1159 | __ push((int)Bytecodes::_arraylength); // who is complaining? |
jrose@1474 | 1160 | __ jump(ExternalAddress(from_interpreted_entry(_raise_exception))); |
jrose@1145 | 1161 | |
jrose@1145 | 1162 | #undef UNPUSH_RSI_RDI |
jrose@1145 | 1163 | } |
jrose@1145 | 1164 | break; |
jrose@1145 | 1165 | |
jrose@1145 | 1166 | case _adapter_flyby: |
jrose@1145 | 1167 | case _adapter_ricochet: |
jrose@1145 | 1168 | __ unimplemented(entry_name(ek)); // %%% FIXME: NYI |
jrose@1145 | 1169 | break; |
jrose@1145 | 1170 | |
jrose@1145 | 1171 | default: ShouldNotReachHere(); |
jrose@1145 | 1172 | } |
jrose@1145 | 1173 | __ hlt(); |
jrose@1145 | 1174 | |
jrose@1145 | 1175 | address me_cookie = MethodHandleEntry::start_compiled_entry(_masm, interp_entry); |
jrose@1145 | 1176 | __ unimplemented(entry_name(ek)); // %%% FIXME: NYI |
jrose@1145 | 1177 | |
jrose@1145 | 1178 | init_entry(ek, MethodHandleEntry::finish_compiled_entry(_masm, me_cookie)); |
jrose@1145 | 1179 | } |