Mercurial > hg > graal-compiler
annotate src/cpu/sparc/vm/methodHandles_sparc.cpp @ 1849:5beba6174298
6987555: JSR 292 unboxing to a boolean value fails on big-endian SPARC
Reviewed-by: never, jrose
| author | twisti |
|---|---|
| date | Wed, 13 Oct 2010 01:19:43 -0700 |
| parents | d55217dc206f |
| children | 7aff5786cc02 |
| rev | line source |
|---|---|
| 710 | 1 /* |
|
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2 * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved. |
| 710 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 710 | 22 * |
| 23 */ | |
| 24 | |
| 25 #include "incls/_precompiled.incl" | |
| 26 #include "incls/_methodHandles_sparc.cpp.incl" | |
| 27 | |
| 28 #define __ _masm-> | |
| 29 | |
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30 #ifdef PRODUCT |
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31 #define BLOCK_COMMENT(str) /* nothing */ |
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32 #else |
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33 #define BLOCK_COMMENT(str) __ block_comment(str) |
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34 #endif |
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35 |
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36 #define BIND(label) bind(label); BLOCK_COMMENT(#label ":") |
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37 |
| 710 | 38 address MethodHandleEntry::start_compiled_entry(MacroAssembler* _masm, |
| 39 address interpreted_entry) { | |
| 1503 | 40 // Just before the actual machine code entry point, allocate space |
| 41 // for a MethodHandleEntry::Data record, so that we can manage everything | |
| 42 // from one base pointer. | |
| 710 | 43 __ align(wordSize); |
| 44 address target = __ pc() + sizeof(Data); | |
| 45 while (__ pc() < target) { | |
| 46 __ nop(); | |
| 47 __ align(wordSize); | |
| 48 } | |
| 49 | |
| 50 MethodHandleEntry* me = (MethodHandleEntry*) __ pc(); | |
| 51 me->set_end_address(__ pc()); // set a temporary end_address | |
| 52 me->set_from_interpreted_entry(interpreted_entry); | |
| 53 me->set_type_checking_entry(NULL); | |
| 54 | |
| 55 return (address) me; | |
| 56 } | |
| 57 | |
| 58 MethodHandleEntry* MethodHandleEntry::finish_compiled_entry(MacroAssembler* _masm, | |
| 59 address start_addr) { | |
| 60 MethodHandleEntry* me = (MethodHandleEntry*) start_addr; | |
| 61 assert(me->end_address() == start_addr, "valid ME"); | |
| 62 | |
| 63 // Fill in the real end_address: | |
| 64 __ align(wordSize); | |
| 65 me->set_end_address(__ pc()); | |
| 66 | |
| 67 return me; | |
| 68 } | |
| 69 | |
| 70 | |
| 71 // Code generation | |
| 72 address MethodHandles::generate_method_handle_interpreter_entry(MacroAssembler* _masm) { | |
| 1503 | 73 // I5_savedSP: sender SP (must preserve) |
| 74 // G4 (Gargs): incoming argument list (must preserve) | |
| 75 // G5_method: invoke methodOop; becomes method type. | |
| 76 // G3_method_handle: receiver method handle (must load from sp[MethodTypeForm.vmslots]) | |
| 77 // O0, O1: garbage temps, blown away | |
| 78 Register O0_argslot = O0; | |
| 79 Register O1_scratch = O1; | |
| 80 | |
| 81 // emit WrongMethodType path first, to enable back-branch from main path | |
| 82 Label wrong_method_type; | |
| 83 __ bind(wrong_method_type); | |
| 84 __ jump_to(AddressLiteral(Interpreter::throw_WrongMethodType_entry()), O1_scratch); | |
| 85 __ delayed()->nop(); | |
| 86 | |
| 87 // here's where control starts out: | |
| 88 __ align(CodeEntryAlignment); | |
| 89 address entry_point = __ pc(); | |
| 90 | |
| 91 // fetch the MethodType from the method handle into G5_method_type | |
| 92 { | |
| 93 Register tem = G5_method; | |
| 94 assert(tem == G5_method_type, "yes, it's the same register"); | |
| 95 for (jint* pchase = methodOopDesc::method_type_offsets_chain(); (*pchase) != -1; pchase++) { | |
| 96 __ ld_ptr(Address(tem, *pchase), G5_method_type); | |
| 97 } | |
| 98 } | |
| 99 | |
| 100 // given the MethodType, find out where the MH argument is buried | |
| 1846 | 101 __ load_heap_oop(Address(G5_method_type, __ delayed_value(java_dyn_MethodType::form_offset_in_bytes, O1_scratch)), O0_argslot); |
| 102 __ ldsw( Address(O0_argslot, __ delayed_value(java_dyn_MethodTypeForm::vmslots_offset_in_bytes, O1_scratch)), O0_argslot); | |
| 1503 | 103 __ ld_ptr(__ argument_address(O0_argslot), G3_method_handle); |
| 104 | |
| 105 __ check_method_handle_type(G5_method_type, G3_method_handle, O1_scratch, wrong_method_type); | |
| 106 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); | |
| 107 | |
| 108 return entry_point; | |
| 710 | 109 } |
| 110 | |
| 1503 | 111 |
| 112 #ifdef ASSERT | |
| 113 static void verify_argslot(MacroAssembler* _masm, Register argslot_reg, Register temp_reg, const char* error_message) { | |
| 114 // Verify that argslot lies within (Gargs, FP]. | |
| 115 Label L_ok, L_bad; | |
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116 BLOCK_COMMENT("{ verify_argslot"); |
| 1503 | 117 #ifdef _LP64 |
| 118 __ add(FP, STACK_BIAS, temp_reg); | |
| 119 __ cmp(argslot_reg, temp_reg); | |
| 120 #else | |
| 121 __ cmp(argslot_reg, FP); | |
| 122 #endif | |
| 123 __ brx(Assembler::greaterUnsigned, false, Assembler::pn, L_bad); | |
| 124 __ delayed()->nop(); | |
| 125 __ cmp(Gargs, argslot_reg); | |
| 126 __ brx(Assembler::lessEqualUnsigned, false, Assembler::pt, L_ok); | |
| 127 __ delayed()->nop(); | |
| 128 __ bind(L_bad); | |
| 129 __ stop(error_message); | |
| 130 __ bind(L_ok); | |
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131 BLOCK_COMMENT("} verify_argslot"); |
| 1503 | 132 } |
| 133 #endif | |
| 134 | |
| 135 | |
| 136 // Helper to insert argument slots into the stack. | |
| 137 // arg_slots must be a multiple of stack_move_unit() and <= 0 | |
| 138 void MethodHandles::insert_arg_slots(MacroAssembler* _masm, | |
| 139 RegisterOrConstant arg_slots, | |
| 140 int arg_mask, | |
| 141 Register argslot_reg, | |
| 142 Register temp_reg, Register temp2_reg, Register temp3_reg) { | |
| 143 assert(temp3_reg != noreg, "temp3 required"); | |
| 144 assert_different_registers(argslot_reg, temp_reg, temp2_reg, temp3_reg, | |
| 145 (!arg_slots.is_register() ? Gargs : arg_slots.as_register())); | |
| 146 | |
| 147 #ifdef ASSERT | |
| 148 verify_argslot(_masm, argslot_reg, temp_reg, "insertion point must fall within current frame"); | |
| 149 if (arg_slots.is_register()) { | |
| 150 Label L_ok, L_bad; | |
| 151 __ cmp(arg_slots.as_register(), (int32_t) NULL_WORD); | |
| 152 __ br(Assembler::greater, false, Assembler::pn, L_bad); | |
| 153 __ delayed()->nop(); | |
| 154 __ btst(-stack_move_unit() - 1, arg_slots.as_register()); | |
| 155 __ br(Assembler::zero, false, Assembler::pt, L_ok); | |
| 156 __ delayed()->nop(); | |
| 157 __ bind(L_bad); | |
| 158 __ stop("assert arg_slots <= 0 and clear low bits"); | |
| 159 __ bind(L_ok); | |
| 160 } else { | |
| 161 assert(arg_slots.as_constant() <= 0, ""); | |
| 162 assert(arg_slots.as_constant() % -stack_move_unit() == 0, ""); | |
| 163 } | |
| 164 #endif // ASSERT | |
| 165 | |
| 166 #ifdef _LP64 | |
| 167 if (arg_slots.is_register()) { | |
| 168 // Was arg_slots register loaded as signed int? | |
| 169 Label L_ok; | |
| 170 __ sll(arg_slots.as_register(), BitsPerInt, temp_reg); | |
| 171 __ sra(temp_reg, BitsPerInt, temp_reg); | |
| 172 __ cmp(arg_slots.as_register(), temp_reg); | |
| 173 __ br(Assembler::equal, false, Assembler::pt, L_ok); | |
| 174 __ delayed()->nop(); | |
| 175 __ stop("arg_slots register not loaded as signed int"); | |
| 176 __ bind(L_ok); | |
| 177 } | |
| 178 #endif | |
| 179 | |
| 180 // Make space on the stack for the inserted argument(s). | |
| 181 // Then pull down everything shallower than argslot_reg. | |
| 182 // The stacked return address gets pulled down with everything else. | |
| 183 // That is, copy [sp, argslot) downward by -size words. In pseudo-code: | |
| 184 // sp -= size; | |
| 185 // for (temp = sp + size; temp < argslot; temp++) | |
| 186 // temp[-size] = temp[0] | |
| 187 // argslot -= size; | |
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188 BLOCK_COMMENT("insert_arg_slots {"); |
| 1503 | 189 RegisterOrConstant offset = __ regcon_sll_ptr(arg_slots, LogBytesPerWord, temp3_reg); |
| 190 | |
| 191 // Keep the stack pointer 2*wordSize aligned. | |
| 192 const int TwoWordAlignmentMask = right_n_bits(LogBytesPerWord + 1); | |
| 193 RegisterOrConstant masked_offset = __ regcon_andn_ptr(offset, TwoWordAlignmentMask, temp_reg); | |
| 194 __ add(SP, masked_offset, SP); | |
| 195 | |
| 196 __ mov(Gargs, temp_reg); // source pointer for copy | |
| 197 __ add(Gargs, offset, Gargs); | |
| 198 | |
| 199 { | |
| 200 Label loop; | |
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201 __ BIND(loop); |
| 1503 | 202 // pull one word down each time through the loop |
| 203 __ ld_ptr(Address(temp_reg, 0), temp2_reg); | |
| 204 __ st_ptr(temp2_reg, Address(temp_reg, offset)); | |
| 205 __ add(temp_reg, wordSize, temp_reg); | |
| 206 __ cmp(temp_reg, argslot_reg); | |
| 207 __ brx(Assembler::less, false, Assembler::pt, loop); | |
| 208 __ delayed()->nop(); // FILLME | |
| 209 } | |
| 210 | |
| 211 // Now move the argslot down, to point to the opened-up space. | |
| 212 __ add(argslot_reg, offset, argslot_reg); | |
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213 BLOCK_COMMENT("} insert_arg_slots"); |
| 1503 | 214 } |
| 215 | |
| 216 | |
| 217 // Helper to remove argument slots from the stack. | |
| 218 // arg_slots must be a multiple of stack_move_unit() and >= 0 | |
| 219 void MethodHandles::remove_arg_slots(MacroAssembler* _masm, | |
| 220 RegisterOrConstant arg_slots, | |
| 221 Register argslot_reg, | |
| 222 Register temp_reg, Register temp2_reg, Register temp3_reg) { | |
| 223 assert(temp3_reg != noreg, "temp3 required"); | |
| 224 assert_different_registers(argslot_reg, temp_reg, temp2_reg, temp3_reg, | |
| 225 (!arg_slots.is_register() ? Gargs : arg_slots.as_register())); | |
| 226 | |
| 227 RegisterOrConstant offset = __ regcon_sll_ptr(arg_slots, LogBytesPerWord, temp3_reg); | |
| 228 | |
| 229 #ifdef ASSERT | |
| 230 // Verify that [argslot..argslot+size) lies within (Gargs, FP). | |
| 231 __ add(argslot_reg, offset, temp2_reg); | |
| 232 verify_argslot(_masm, temp2_reg, temp_reg, "deleted argument(s) must fall within current frame"); | |
| 233 if (arg_slots.is_register()) { | |
| 234 Label L_ok, L_bad; | |
| 235 __ cmp(arg_slots.as_register(), (int32_t) NULL_WORD); | |
| 236 __ br(Assembler::less, false, Assembler::pn, L_bad); | |
| 237 __ delayed()->nop(); | |
| 238 __ btst(-stack_move_unit() - 1, arg_slots.as_register()); | |
| 239 __ br(Assembler::zero, false, Assembler::pt, L_ok); | |
| 240 __ delayed()->nop(); | |
| 241 __ bind(L_bad); | |
| 242 __ stop("assert arg_slots >= 0 and clear low bits"); | |
| 243 __ bind(L_ok); | |
| 244 } else { | |
| 245 assert(arg_slots.as_constant() >= 0, ""); | |
| 246 assert(arg_slots.as_constant() % -stack_move_unit() == 0, ""); | |
| 247 } | |
| 248 #endif // ASSERT | |
| 249 | |
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250 BLOCK_COMMENT("remove_arg_slots {"); |
| 1503 | 251 // Pull up everything shallower than argslot. |
| 252 // Then remove the excess space on the stack. | |
| 253 // The stacked return address gets pulled up with everything else. | |
| 254 // That is, copy [sp, argslot) upward by size words. In pseudo-code: | |
| 255 // for (temp = argslot-1; temp >= sp; --temp) | |
| 256 // temp[size] = temp[0] | |
| 257 // argslot += size; | |
| 258 // sp += size; | |
| 259 __ sub(argslot_reg, wordSize, temp_reg); // source pointer for copy | |
| 260 { | |
| 261 Label loop; | |
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262 __ BIND(loop); |
| 1503 | 263 // pull one word up each time through the loop |
| 264 __ ld_ptr(Address(temp_reg, 0), temp2_reg); | |
| 265 __ st_ptr(temp2_reg, Address(temp_reg, offset)); | |
| 266 __ sub(temp_reg, wordSize, temp_reg); | |
| 267 __ cmp(temp_reg, Gargs); | |
| 268 __ brx(Assembler::greaterEqual, false, Assembler::pt, loop); | |
| 269 __ delayed()->nop(); // FILLME | |
| 270 } | |
| 271 | |
| 272 // Now move the argslot up, to point to the just-copied block. | |
| 273 __ add(Gargs, offset, Gargs); | |
| 274 // And adjust the argslot address to point at the deletion point. | |
| 275 __ add(argslot_reg, offset, argslot_reg); | |
| 276 | |
| 277 // Keep the stack pointer 2*wordSize aligned. | |
| 278 const int TwoWordAlignmentMask = right_n_bits(LogBytesPerWord + 1); | |
| 279 RegisterOrConstant masked_offset = __ regcon_andn_ptr(offset, TwoWordAlignmentMask, temp_reg); | |
| 280 __ add(SP, masked_offset, SP); | |
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281 BLOCK_COMMENT("} remove_arg_slots"); |
| 1503 | 282 } |
| 283 | |
| 284 | |
| 285 #ifndef PRODUCT | |
| 286 extern "C" void print_method_handle(oop mh); | |
| 287 void trace_method_handle_stub(const char* adaptername, | |
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288 oopDesc* mh) { |
| 1503 | 289 printf("MH %s mh="INTPTR_FORMAT"\n", adaptername, (intptr_t) mh); |
| 290 print_method_handle(mh); | |
| 291 } | |
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292 void MethodHandles::trace_method_handle(MacroAssembler* _masm, const char* adaptername) { |
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293 if (!TraceMethodHandles) return; |
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294 BLOCK_COMMENT("trace_method_handle {"); |
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295 // save: Gargs, O5_savedSP |
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296 __ save_frame(16); |
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297 __ set((intptr_t) adaptername, O0); |
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298 __ mov(G3_method_handle, O1); |
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299 __ mov(G3_method_handle, L3); |
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300 __ mov(Gargs, L4); |
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301 __ mov(G5_method_type, L5); |
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302 __ call_VM_leaf(L7, CAST_FROM_FN_PTR(address, trace_method_handle_stub)); |
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303 |
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304 __ mov(L3, G3_method_handle); |
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305 __ mov(L4, Gargs); |
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306 __ mov(L5, G5_method_type); |
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307 __ restore(); |
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308 BLOCK_COMMENT("} trace_method_handle"); |
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309 } |
| 1503 | 310 #endif // PRODUCT |
| 311 | |
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312 // which conversion op types are implemented here? |
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313 int MethodHandles::adapter_conversion_ops_supported_mask() { |
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314 return ((1<<sun_dyn_AdapterMethodHandle::OP_RETYPE_ONLY) |
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315 |(1<<sun_dyn_AdapterMethodHandle::OP_RETYPE_RAW) |
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316 |(1<<sun_dyn_AdapterMethodHandle::OP_CHECK_CAST) |
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317 |(1<<sun_dyn_AdapterMethodHandle::OP_PRIM_TO_PRIM) |
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318 |(1<<sun_dyn_AdapterMethodHandle::OP_REF_TO_PRIM) |
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319 |(1<<sun_dyn_AdapterMethodHandle::OP_SWAP_ARGS) |
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320 |(1<<sun_dyn_AdapterMethodHandle::OP_ROT_ARGS) |
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321 |(1<<sun_dyn_AdapterMethodHandle::OP_DUP_ARGS) |
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322 |(1<<sun_dyn_AdapterMethodHandle::OP_DROP_ARGS) |
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323 //|(1<<sun_dyn_AdapterMethodHandle::OP_SPREAD_ARGS) //BUG! |
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324 ); |
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325 // FIXME: MethodHandlesTest gets a crash if we enable OP_SPREAD_ARGS. |
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326 } |
| 1503 | 327 |
| 328 //------------------------------------------------------------------------------ | |
| 329 // MethodHandles::generate_method_handle_stub | |
| 330 // | |
| 710 | 331 // Generate an "entry" field for a method handle. |
| 332 // This determines how the method handle will respond to calls. | |
| 333 void MethodHandles::generate_method_handle_stub(MacroAssembler* _masm, MethodHandles::EntryKind ek) { | |
| 1503 | 334 // Here is the register state during an interpreted call, |
| 335 // as set up by generate_method_handle_interpreter_entry(): | |
| 336 // - G5: garbage temp (was MethodHandle.invoke methodOop, unused) | |
| 337 // - G3: receiver method handle | |
| 338 // - O5_savedSP: sender SP (must preserve) | |
| 339 | |
| 340 Register O0_argslot = O0; | |
| 341 Register O1_scratch = O1; | |
| 342 Register O2_scratch = O2; | |
| 343 Register O3_scratch = O3; | |
| 344 Register G5_index = G5; | |
| 345 | |
| 346 guarantee(java_dyn_MethodHandle::vmentry_offset_in_bytes() != 0, "must have offsets"); | |
| 347 | |
| 348 // Some handy addresses: | |
| 349 Address G5_method_fie( G5_method, in_bytes(methodOopDesc::from_interpreted_offset())); | |
| 350 | |
| 351 Address G3_mh_vmtarget( G3_method_handle, java_dyn_MethodHandle::vmtarget_offset_in_bytes()); | |
| 352 | |
| 353 Address G3_dmh_vmindex( G3_method_handle, sun_dyn_DirectMethodHandle::vmindex_offset_in_bytes()); | |
| 354 | |
| 355 Address G3_bmh_vmargslot( G3_method_handle, sun_dyn_BoundMethodHandle::vmargslot_offset_in_bytes()); | |
| 356 Address G3_bmh_argument( G3_method_handle, sun_dyn_BoundMethodHandle::argument_offset_in_bytes()); | |
| 357 | |
| 358 Address G3_amh_vmargslot( G3_method_handle, sun_dyn_AdapterMethodHandle::vmargslot_offset_in_bytes()); | |
| 359 Address G3_amh_argument ( G3_method_handle, sun_dyn_AdapterMethodHandle::argument_offset_in_bytes()); | |
| 360 Address G3_amh_conversion(G3_method_handle, sun_dyn_AdapterMethodHandle::conversion_offset_in_bytes()); | |
| 361 | |
| 362 const int java_mirror_offset = klassOopDesc::klass_part_offset_in_bytes() + Klass::java_mirror_offset_in_bytes(); | |
| 363 | |
| 364 if (have_entry(ek)) { | |
| 365 __ nop(); // empty stubs make SG sick | |
| 366 return; | |
| 367 } | |
| 368 | |
| 369 address interp_entry = __ pc(); | |
| 370 | |
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371 trace_method_handle(_masm, entry_name(ek)); |
| 1503 | 372 |
| 373 switch ((int) ek) { | |
| 374 case _raise_exception: | |
| 375 { | |
| 376 // Not a real MH entry, but rather shared code for raising an | |
| 377 // exception. Extra local arguments are passed in scratch | |
| 378 // registers, as required type in O3, failing object (or NULL) | |
| 379 // in O2, failing bytecode type in O1. | |
| 380 | |
| 381 __ mov(O5_savedSP, SP); // Cut the stack back to where the caller started. | |
| 382 | |
| 383 // Push arguments as if coming from the interpreter. | |
| 384 Register O0_scratch = O0_argslot; | |
| 1506 | 385 int stackElementSize = Interpreter::stackElementSize; |
| 1503 | 386 |
| 1564 | 387 // Make space on the stack for the arguments and set Gargs |
| 388 // correctly. | |
| 389 __ sub(SP, 4*stackElementSize, SP); // Keep stack aligned. | |
| 390 __ add(SP, (frame::varargs_offset)*wordSize - 1*Interpreter::stackElementSize + STACK_BIAS + BytesPerWord, Gargs); | |
| 1503 | 391 |
| 392 // void raiseException(int code, Object actual, Object required) | |
| 393 __ st( O1_scratch, Address(Gargs, 2*stackElementSize)); // code | |
| 394 __ st_ptr(O2_scratch, Address(Gargs, 1*stackElementSize)); // actual | |
| 395 __ st_ptr(O3_scratch, Address(Gargs, 0*stackElementSize)); // required | |
| 396 | |
| 397 Label no_method; | |
| 398 // FIXME: fill in _raise_exception_method with a suitable sun.dyn method | |
| 399 __ set(AddressLiteral((address) &_raise_exception_method), G5_method); | |
| 400 __ ld_ptr(Address(G5_method, 0), G5_method); | |
| 401 __ tst(G5_method); | |
| 402 __ brx(Assembler::zero, false, Assembler::pn, no_method); | |
| 403 __ delayed()->nop(); | |
| 404 | |
| 405 int jobject_oop_offset = 0; | |
| 406 __ ld_ptr(Address(G5_method, jobject_oop_offset), G5_method); | |
| 407 __ tst(G5_method); | |
| 408 __ brx(Assembler::zero, false, Assembler::pn, no_method); | |
| 409 __ delayed()->nop(); | |
| 410 | |
| 411 __ verify_oop(G5_method); | |
| 412 __ jump_indirect_to(G5_method_fie, O1_scratch); | |
| 413 __ delayed()->nop(); | |
| 414 | |
| 415 // If we get here, the Java runtime did not do its job of creating the exception. | |
| 416 // Do something that is at least causes a valid throw from the interpreter. | |
| 417 __ bind(no_method); | |
| 418 __ unimplemented("_raise_exception no method"); | |
| 419 } | |
| 420 break; | |
| 421 | |
| 422 case _invokestatic_mh: | |
| 423 case _invokespecial_mh: | |
| 424 { | |
| 1846 | 425 __ load_heap_oop(G3_mh_vmtarget, G5_method); // target is a methodOop |
| 1503 | 426 __ verify_oop(G5_method); |
| 427 // Same as TemplateTable::invokestatic or invokespecial, | |
| 428 // minus the CP setup and profiling: | |
| 429 if (ek == _invokespecial_mh) { | |
| 430 // Must load & check the first argument before entering the target method. | |
| 431 __ load_method_handle_vmslots(O0_argslot, G3_method_handle, O1_scratch); | |
| 432 __ ld_ptr(__ argument_address(O0_argslot), G3_method_handle); | |
| 433 __ null_check(G3_method_handle); | |
| 434 __ verify_oop(G3_method_handle); | |
| 435 } | |
| 436 __ jump_indirect_to(G5_method_fie, O1_scratch); | |
| 437 __ delayed()->nop(); | |
| 438 } | |
| 439 break; | |
| 440 | |
| 441 case _invokevirtual_mh: | |
| 442 { | |
| 443 // Same as TemplateTable::invokevirtual, | |
| 444 // minus the CP setup and profiling: | |
| 445 | |
| 446 // Pick out the vtable index and receiver offset from the MH, | |
| 447 // and then we can discard it: | |
| 448 __ load_method_handle_vmslots(O0_argslot, G3_method_handle, O1_scratch); | |
| 449 __ ldsw(G3_dmh_vmindex, G5_index); | |
| 450 // Note: The verifier allows us to ignore G3_mh_vmtarget. | |
| 451 __ ld_ptr(__ argument_address(O0_argslot, -1), G3_method_handle); | |
| 452 __ null_check(G3_method_handle, oopDesc::klass_offset_in_bytes()); | |
| 453 | |
| 454 // Get receiver klass: | |
| 455 Register O0_klass = O0_argslot; | |
| 456 __ load_klass(G3_method_handle, O0_klass); | |
| 457 __ verify_oop(O0_klass); | |
| 458 | |
| 459 // Get target methodOop & entry point: | |
| 460 const int base = instanceKlass::vtable_start_offset() * wordSize; | |
| 461 assert(vtableEntry::size() * wordSize == wordSize, "adjust the scaling in the code below"); | |
| 462 | |
| 463 __ sll_ptr(G5_index, LogBytesPerWord, G5_index); | |
| 464 __ add(O0_klass, G5_index, O0_klass); | |
| 465 Address vtable_entry_addr(O0_klass, base + vtableEntry::method_offset_in_bytes()); | |
| 466 __ ld_ptr(vtable_entry_addr, G5_method); | |
| 467 | |
| 468 __ verify_oop(G5_method); | |
| 469 __ jump_indirect_to(G5_method_fie, O1_scratch); | |
| 470 __ delayed()->nop(); | |
| 471 } | |
| 472 break; | |
| 473 | |
| 474 case _invokeinterface_mh: | |
| 475 { | |
| 476 // Same as TemplateTable::invokeinterface, | |
| 477 // minus the CP setup and profiling: | |
| 478 __ load_method_handle_vmslots(O0_argslot, G3_method_handle, O1_scratch); | |
| 479 Register O1_intf = O1_scratch; | |
| 1846 | 480 __ load_heap_oop(G3_mh_vmtarget, O1_intf); |
| 1503 | 481 __ ldsw(G3_dmh_vmindex, G5_index); |
| 482 __ ld_ptr(__ argument_address(O0_argslot, -1), G3_method_handle); | |
| 483 __ null_check(G3_method_handle, oopDesc::klass_offset_in_bytes()); | |
| 484 | |
| 485 // Get receiver klass: | |
| 486 Register O0_klass = O0_argslot; | |
| 487 __ load_klass(G3_method_handle, O0_klass); | |
| 488 __ verify_oop(O0_klass); | |
| 489 | |
| 490 // Get interface: | |
| 491 Label no_such_interface; | |
| 492 __ verify_oop(O1_intf); | |
| 493 __ lookup_interface_method(O0_klass, O1_intf, | |
| 494 // Note: next two args must be the same: | |
| 495 G5_index, G5_method, | |
| 496 O2_scratch, | |
| 497 O3_scratch, | |
| 498 no_such_interface); | |
| 499 | |
| 500 __ verify_oop(G5_method); | |
| 501 __ jump_indirect_to(G5_method_fie, O1_scratch); | |
| 502 __ delayed()->nop(); | |
| 503 | |
| 504 __ bind(no_such_interface); | |
| 505 // Throw an exception. | |
| 506 // For historical reasons, it will be IncompatibleClassChangeError. | |
| 507 __ unimplemented("not tested yet"); | |
| 508 __ ld_ptr(Address(O1_intf, java_mirror_offset), O3_scratch); // required interface | |
| 509 __ mov(O0_klass, O2_scratch); // bad receiver | |
| 510 __ jump_to(AddressLiteral(from_interpreted_entry(_raise_exception)), O0_argslot); | |
| 511 __ delayed()->mov(Bytecodes::_invokeinterface, O1_scratch); // who is complaining? | |
| 512 } | |
| 513 break; | |
| 514 | |
| 515 case _bound_ref_mh: | |
| 516 case _bound_int_mh: | |
| 517 case _bound_long_mh: | |
| 518 case _bound_ref_direct_mh: | |
| 519 case _bound_int_direct_mh: | |
| 520 case _bound_long_direct_mh: | |
| 521 { | |
| 522 const bool direct_to_method = (ek >= _bound_ref_direct_mh); | |
| 523 BasicType arg_type = T_ILLEGAL; | |
| 524 int arg_mask = _INSERT_NO_MASK; | |
| 525 int arg_slots = -1; | |
| 526 get_ek_bound_mh_info(ek, arg_type, arg_mask, arg_slots); | |
| 527 | |
| 528 // Make room for the new argument: | |
| 529 __ ldsw(G3_bmh_vmargslot, O0_argslot); | |
| 530 __ add(Gargs, __ argument_offset(O0_argslot), O0_argslot); | |
| 531 | |
| 532 insert_arg_slots(_masm, arg_slots * stack_move_unit(), arg_mask, O0_argslot, O1_scratch, O2_scratch, G5_index); | |
| 533 | |
| 534 // Store bound argument into the new stack slot: | |
| 1846 | 535 __ load_heap_oop(G3_bmh_argument, O1_scratch); |
| 1503 | 536 if (arg_type == T_OBJECT) { |
| 537 __ st_ptr(O1_scratch, Address(O0_argslot, 0)); | |
| 538 } else { | |
| 539 Address prim_value_addr(O1_scratch, java_lang_boxing_object::value_offset_in_bytes(arg_type)); | |
| 540 __ load_sized_value(prim_value_addr, O2_scratch, type2aelembytes(arg_type), is_signed_subword_type(arg_type)); | |
| 541 if (arg_slots == 2) { | |
| 542 __ unimplemented("not yet tested"); | |
| 543 #ifndef _LP64 | |
| 544 __ signx(O2_scratch, O3_scratch); // Sign extend | |
| 545 #endif | |
| 546 __ st_long(O2_scratch, Address(O0_argslot, 0)); // Uses O2/O3 on !_LP64 | |
| 547 } else { | |
| 548 __ st_ptr( O2_scratch, Address(O0_argslot, 0)); | |
| 549 } | |
| 550 } | |
| 551 | |
| 552 if (direct_to_method) { | |
| 1846 | 553 __ load_heap_oop(G3_mh_vmtarget, G5_method); // target is a methodOop |
| 1503 | 554 __ verify_oop(G5_method); |
| 555 __ jump_indirect_to(G5_method_fie, O1_scratch); | |
| 556 __ delayed()->nop(); | |
| 557 } else { | |
| 1846 | 558 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); // target is a methodOop |
| 1503 | 559 __ verify_oop(G3_method_handle); |
| 560 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); | |
| 561 } | |
| 562 } | |
| 563 break; | |
| 564 | |
| 565 case _adapter_retype_only: | |
| 566 case _adapter_retype_raw: | |
| 567 // Immediately jump to the next MH layer: | |
| 1846 | 568 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
| 1503 | 569 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
| 570 // This is OK when all parameter types widen. | |
| 571 // It is also OK when a return type narrows. | |
| 572 break; | |
| 573 | |
| 574 case _adapter_check_cast: | |
| 575 { | |
| 576 // Temps: | |
| 577 Register G5_klass = G5_index; // Interesting AMH data. | |
| 578 | |
| 579 // Check a reference argument before jumping to the next layer of MH: | |
| 580 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
| 581 Address vmarg = __ argument_address(O0_argslot); | |
| 582 | |
| 583 // What class are we casting to? | |
| 1846 | 584 __ load_heap_oop(G3_amh_argument, G5_klass); // This is a Class object! |
| 585 __ load_heap_oop(Address(G5_klass, java_lang_Class::klass_offset_in_bytes()), G5_klass); | |
| 1503 | 586 |
| 587 Label done; | |
| 588 __ ld_ptr(vmarg, O1_scratch); | |
| 589 __ tst(O1_scratch); | |
| 590 __ brx(Assembler::zero, false, Assembler::pn, done); // No cast if null. | |
| 591 __ delayed()->nop(); | |
| 592 __ load_klass(O1_scratch, O1_scratch); | |
| 593 | |
| 594 // Live at this point: | |
| 595 // - G5_klass : klass required by the target method | |
| 596 // - O1_scratch : argument klass to test | |
| 597 // - G3_method_handle: adapter method handle | |
| 598 __ check_klass_subtype(O1_scratch, G5_klass, O0_argslot, O2_scratch, done); | |
| 599 | |
| 600 // If we get here, the type check failed! | |
| 601 __ ldsw(G3_amh_vmargslot, O0_argslot); // reload argslot field | |
| 1846 | 602 __ load_heap_oop(G3_amh_argument, O3_scratch); // required class |
| 1503 | 603 __ ld_ptr(vmarg, O2_scratch); // bad object |
| 604 __ jump_to(AddressLiteral(from_interpreted_entry(_raise_exception)), O0_argslot); | |
| 605 __ delayed()->mov(Bytecodes::_checkcast, O1_scratch); // who is complaining? | |
| 606 | |
| 607 __ bind(done); | |
| 608 // Get the new MH: | |
| 1846 | 609 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
| 1503 | 610 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
| 611 } | |
| 612 break; | |
| 613 | |
| 614 case _adapter_prim_to_prim: | |
| 615 case _adapter_ref_to_prim: | |
| 616 // Handled completely by optimized cases. | |
| 617 __ stop("init_AdapterMethodHandle should not issue this"); | |
| 618 break; | |
| 619 | |
| 620 case _adapter_opt_i2i: // optimized subcase of adapt_prim_to_prim | |
| 621 //case _adapter_opt_f2i: // optimized subcase of adapt_prim_to_prim | |
| 622 case _adapter_opt_l2i: // optimized subcase of adapt_prim_to_prim | |
| 623 case _adapter_opt_unboxi: // optimized subcase of adapt_ref_to_prim | |
| 624 { | |
| 625 // Perform an in-place conversion to int or an int subword. | |
| 626 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
| 627 Address vmarg = __ argument_address(O0_argslot); | |
| 628 Address value; | |
| 629 bool value_left_justified = false; | |
| 630 | |
| 631 switch (ek) { | |
| 632 case _adapter_opt_i2i: | |
| 633 case _adapter_opt_l2i: | |
| 634 __ unimplemented(entry_name(ek)); | |
| 635 value = vmarg; | |
| 636 break; | |
| 637 case _adapter_opt_unboxi: | |
| 638 { | |
| 639 // Load the value up from the heap. | |
| 640 __ ld_ptr(vmarg, O1_scratch); | |
| 641 int value_offset = java_lang_boxing_object::value_offset_in_bytes(T_INT); | |
| 642 #ifdef ASSERT | |
| 643 for (int bt = T_BOOLEAN; bt < T_INT; bt++) { | |
| 644 if (is_subword_type(BasicType(bt))) | |
| 645 assert(value_offset == java_lang_boxing_object::value_offset_in_bytes(BasicType(bt)), ""); | |
| 646 } | |
| 647 #endif | |
| 648 __ null_check(O1_scratch, value_offset); | |
| 649 value = Address(O1_scratch, value_offset); | |
| 650 #ifdef _BIG_ENDIAN | |
| 651 // Values stored in objects are packed. | |
| 652 value_left_justified = true; | |
| 653 #endif | |
| 654 } | |
| 655 break; | |
| 656 default: | |
| 657 ShouldNotReachHere(); | |
| 658 } | |
| 659 | |
| 660 // This check is required on _BIG_ENDIAN | |
| 661 Register G5_vminfo = G5_index; | |
| 662 __ ldsw(G3_amh_conversion, G5_vminfo); | |
| 663 assert(CONV_VMINFO_SHIFT == 0, "preshifted"); | |
| 664 | |
| 665 // Original 32-bit vmdata word must be of this form: | |
| 666 // | MBZ:6 | signBitCount:8 | srcDstTypes:8 | conversionOp:8 | | |
| 667 __ lduw(value, O1_scratch); | |
| 668 if (!value_left_justified) | |
| 669 __ sll(O1_scratch, G5_vminfo, O1_scratch); | |
| 670 Label zero_extend, done; | |
| 671 __ btst(CONV_VMINFO_SIGN_FLAG, G5_vminfo); | |
| 672 __ br(Assembler::zero, false, Assembler::pn, zero_extend); | |
| 673 __ delayed()->nop(); | |
| 674 | |
| 675 // this path is taken for int->byte, int->short | |
| 676 __ sra(O1_scratch, G5_vminfo, O1_scratch); | |
| 677 __ ba(false, done); | |
| 678 __ delayed()->nop(); | |
| 679 | |
| 680 __ bind(zero_extend); | |
| 681 // this is taken for int->char | |
| 682 __ srl(O1_scratch, G5_vminfo, O1_scratch); | |
| 683 | |
| 684 __ bind(done); | |
| 685 __ st(O1_scratch, vmarg); | |
| 686 | |
| 687 // Get the new MH: | |
| 1846 | 688 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
| 1503 | 689 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
| 690 } | |
| 691 break; | |
| 692 | |
| 693 case _adapter_opt_i2l: // optimized subcase of adapt_prim_to_prim | |
| 694 case _adapter_opt_unboxl: // optimized subcase of adapt_ref_to_prim | |
| 695 { | |
| 696 // Perform an in-place int-to-long or ref-to-long conversion. | |
| 697 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
| 698 | |
| 699 // On big-endian machine we duplicate the slot and store the MSW | |
| 700 // in the first slot. | |
| 701 __ add(Gargs, __ argument_offset(O0_argslot, 1), O0_argslot); | |
| 702 | |
| 703 insert_arg_slots(_masm, stack_move_unit(), _INSERT_INT_MASK, O0_argslot, O1_scratch, O2_scratch, G5_index); | |
| 704 | |
| 705 Address arg_lsw(O0_argslot, 0); | |
| 1506 | 706 Address arg_msw(O0_argslot, -Interpreter::stackElementSize); |
| 1503 | 707 |
| 708 switch (ek) { | |
| 709 case _adapter_opt_i2l: | |
| 710 { | |
| 711 __ ldsw(arg_lsw, O2_scratch); // Load LSW | |
| 712 #ifndef _LP64 | |
| 713 __ signx(O2_scratch, O3_scratch); // Sign extend | |
| 714 #endif | |
| 715 __ st_long(O2_scratch, arg_msw); // Uses O2/O3 on !_LP64 | |
| 716 } | |
| 717 break; | |
| 718 case _adapter_opt_unboxl: | |
| 719 { | |
| 720 // Load the value up from the heap. | |
| 721 __ ld_ptr(arg_lsw, O1_scratch); | |
| 722 int value_offset = java_lang_boxing_object::value_offset_in_bytes(T_LONG); | |
| 723 assert(value_offset == java_lang_boxing_object::value_offset_in_bytes(T_DOUBLE), ""); | |
| 724 __ null_check(O1_scratch, value_offset); | |
| 725 __ ld_long(Address(O1_scratch, value_offset), O2_scratch); // Uses O2/O3 on !_LP64 | |
| 726 __ st_long(O2_scratch, arg_msw); | |
| 727 } | |
| 728 break; | |
| 729 default: | |
| 730 ShouldNotReachHere(); | |
| 731 } | |
| 732 | |
| 1846 | 733 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
| 1503 | 734 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
| 735 } | |
| 736 break; | |
| 737 | |
| 738 case _adapter_opt_f2d: // optimized subcase of adapt_prim_to_prim | |
| 739 case _adapter_opt_d2f: // optimized subcase of adapt_prim_to_prim | |
| 740 { | |
| 741 // perform an in-place floating primitive conversion | |
| 742 __ unimplemented(entry_name(ek)); | |
| 743 } | |
| 744 break; | |
| 745 | |
| 746 case _adapter_prim_to_ref: | |
| 747 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI | |
| 748 break; | |
| 749 | |
| 750 case _adapter_swap_args: | |
| 751 case _adapter_rot_args: | |
| 752 // handled completely by optimized cases | |
| 753 __ stop("init_AdapterMethodHandle should not issue this"); | |
| 754 break; | |
| 755 | |
| 756 case _adapter_opt_swap_1: | |
| 757 case _adapter_opt_swap_2: | |
| 758 case _adapter_opt_rot_1_up: | |
| 759 case _adapter_opt_rot_1_down: | |
| 760 case _adapter_opt_rot_2_up: | |
| 761 case _adapter_opt_rot_2_down: | |
| 762 { | |
| 763 int swap_bytes = 0, rotate = 0; | |
| 764 get_ek_adapter_opt_swap_rot_info(ek, swap_bytes, rotate); | |
| 765 | |
| 766 // 'argslot' is the position of the first argument to swap. | |
| 767 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
| 768 __ add(Gargs, __ argument_offset(O0_argslot), O0_argslot); | |
| 769 | |
| 770 // 'vminfo' is the second. | |
| 771 Register O1_destslot = O1_scratch; | |
| 772 __ ldsw(G3_amh_conversion, O1_destslot); | |
| 773 assert(CONV_VMINFO_SHIFT == 0, "preshifted"); | |
| 774 __ and3(O1_destslot, CONV_VMINFO_MASK, O1_destslot); | |
| 775 __ add(Gargs, __ argument_offset(O1_destslot), O1_destslot); | |
| 776 | |
| 777 if (!rotate) { | |
| 778 for (int i = 0; i < swap_bytes; i += wordSize) { | |
| 779 __ ld_ptr(Address(O0_argslot, i), O2_scratch); | |
| 780 __ ld_ptr(Address(O1_destslot, i), O3_scratch); | |
| 781 __ st_ptr(O3_scratch, Address(O0_argslot, i)); | |
| 782 __ st_ptr(O2_scratch, Address(O1_destslot, i)); | |
| 783 } | |
| 784 } else { | |
| 785 // Save the first chunk, which is going to get overwritten. | |
| 786 switch (swap_bytes) { | |
| 787 case 4 : __ lduw(Address(O0_argslot, 0), O2_scratch); break; | |
| 788 case 16: __ ldx( Address(O0_argslot, 8), O3_scratch); //fall-thru | |
| 789 case 8 : __ ldx( Address(O0_argslot, 0), O2_scratch); break; | |
| 790 default: ShouldNotReachHere(); | |
| 791 } | |
| 792 | |
| 793 if (rotate > 0) { | |
| 794 // Rorate upward. | |
| 795 __ sub(O0_argslot, swap_bytes, O0_argslot); | |
| 796 #if ASSERT | |
| 797 { | |
| 798 // Verify that argslot > destslot, by at least swap_bytes. | |
| 799 Label L_ok; | |
| 800 __ cmp(O0_argslot, O1_destslot); | |
| 801 __ brx(Assembler::greaterEqualUnsigned, false, Assembler::pt, L_ok); | |
| 802 __ delayed()->nop(); | |
| 803 __ stop("source must be above destination (upward rotation)"); | |
| 804 __ bind(L_ok); | |
| 805 } | |
| 806 #endif | |
| 807 // Work argslot down to destslot, copying contiguous data upwards. | |
| 808 // Pseudo-code: | |
| 809 // argslot = src_addr - swap_bytes | |
| 810 // destslot = dest_addr | |
| 811 // while (argslot >= destslot) { | |
| 812 // *(argslot + swap_bytes) = *(argslot + 0); | |
| 813 // argslot--; | |
| 814 // } | |
| 815 Label loop; | |
| 816 __ bind(loop); | |
| 817 __ ld_ptr(Address(O0_argslot, 0), G5_index); | |
| 818 __ st_ptr(G5_index, Address(O0_argslot, swap_bytes)); | |
| 819 __ sub(O0_argslot, wordSize, O0_argslot); | |
| 820 __ cmp(O0_argslot, O1_destslot); | |
| 821 __ brx(Assembler::greaterEqualUnsigned, false, Assembler::pt, loop); | |
| 822 __ delayed()->nop(); // FILLME | |
| 823 } else { | |
| 824 __ add(O0_argslot, swap_bytes, O0_argslot); | |
| 825 #if ASSERT | |
| 826 { | |
| 827 // Verify that argslot < destslot, by at least swap_bytes. | |
| 828 Label L_ok; | |
| 829 __ cmp(O0_argslot, O1_destslot); | |
| 830 __ brx(Assembler::lessEqualUnsigned, false, Assembler::pt, L_ok); | |
| 831 __ delayed()->nop(); | |
| 832 __ stop("source must be above destination (upward rotation)"); | |
| 833 __ bind(L_ok); | |
| 834 } | |
| 835 #endif | |
| 836 // Work argslot up to destslot, copying contiguous data downwards. | |
| 837 // Pseudo-code: | |
| 838 // argslot = src_addr + swap_bytes | |
| 839 // destslot = dest_addr | |
| 840 // while (argslot >= destslot) { | |
| 841 // *(argslot - swap_bytes) = *(argslot + 0); | |
| 842 // argslot++; | |
| 843 // } | |
| 844 Label loop; | |
| 845 __ bind(loop); | |
| 846 __ ld_ptr(Address(O0_argslot, 0), G5_index); | |
| 847 __ st_ptr(G5_index, Address(O0_argslot, -swap_bytes)); | |
| 848 __ add(O0_argslot, wordSize, O0_argslot); | |
| 849 __ cmp(O0_argslot, O1_destslot); | |
| 850 __ brx(Assembler::lessEqualUnsigned, false, Assembler::pt, loop); | |
| 851 __ delayed()->nop(); // FILLME | |
| 852 } | |
| 853 | |
| 854 // Store the original first chunk into the destination slot, now free. | |
| 855 switch (swap_bytes) { | |
| 856 case 4 : __ stw(O2_scratch, Address(O1_destslot, 0)); break; | |
| 857 case 16: __ stx(O3_scratch, Address(O1_destslot, 8)); // fall-thru | |
| 858 case 8 : __ stx(O2_scratch, Address(O1_destslot, 0)); break; | |
| 859 default: ShouldNotReachHere(); | |
| 860 } | |
| 861 } | |
| 862 | |
| 1846 | 863 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
| 1503 | 864 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
| 865 } | |
| 866 break; | |
| 867 | |
| 868 case _adapter_dup_args: | |
| 869 { | |
| 870 // 'argslot' is the position of the first argument to duplicate. | |
| 871 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
| 872 __ add(Gargs, __ argument_offset(O0_argslot), O0_argslot); | |
| 873 | |
| 874 // 'stack_move' is negative number of words to duplicate. | |
| 875 Register G5_stack_move = G5_index; | |
| 876 __ ldsw(G3_amh_conversion, G5_stack_move); | |
| 877 __ sra(G5_stack_move, CONV_STACK_MOVE_SHIFT, G5_stack_move); | |
| 878 | |
| 879 // Remember the old Gargs (argslot[0]). | |
| 880 Register O1_oldarg = O1_scratch; | |
| 881 __ mov(Gargs, O1_oldarg); | |
| 882 | |
| 883 // Move Gargs down to make room for dups. | |
| 884 __ sll_ptr(G5_stack_move, LogBytesPerWord, G5_stack_move); | |
| 885 __ add(Gargs, G5_stack_move, Gargs); | |
| 886 | |
| 887 // Compute the new Gargs (argslot[0]). | |
| 888 Register O2_newarg = O2_scratch; | |
| 889 __ mov(Gargs, O2_newarg); | |
| 890 | |
| 891 // Copy from oldarg[0...] down to newarg[0...] | |
| 892 // Pseude-code: | |
| 893 // O1_oldarg = old-Gargs | |
| 894 // O2_newarg = new-Gargs | |
| 895 // O0_argslot = argslot | |
| 896 // while (O2_newarg < O1_oldarg) *O2_newarg = *O0_argslot++ | |
| 897 Label loop; | |
| 898 __ bind(loop); | |
| 899 __ ld_ptr(Address(O0_argslot, 0), O3_scratch); | |
| 900 __ st_ptr(O3_scratch, Address(O2_newarg, 0)); | |
| 901 __ add(O0_argslot, wordSize, O0_argslot); | |
| 902 __ add(O2_newarg, wordSize, O2_newarg); | |
| 903 __ cmp(O2_newarg, O1_oldarg); | |
| 904 __ brx(Assembler::less, false, Assembler::pt, loop); | |
| 905 __ delayed()->nop(); // FILLME | |
| 906 | |
| 1846 | 907 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
| 1503 | 908 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
| 909 } | |
| 910 break; | |
| 911 | |
| 912 case _adapter_drop_args: | |
| 913 { | |
| 914 // 'argslot' is the position of the first argument to nuke. | |
| 915 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
| 916 __ add(Gargs, __ argument_offset(O0_argslot), O0_argslot); | |
| 917 | |
| 918 // 'stack_move' is number of words to drop. | |
| 919 Register G5_stack_move = G5_index; | |
| 920 __ ldsw(G3_amh_conversion, G5_stack_move); | |
| 921 __ sra(G5_stack_move, CONV_STACK_MOVE_SHIFT, G5_stack_move); | |
| 922 | |
| 923 remove_arg_slots(_masm, G5_stack_move, O0_argslot, O1_scratch, O2_scratch, O3_scratch); | |
| 924 | |
| 1846 | 925 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
| 1503 | 926 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
| 927 } | |
| 928 break; | |
| 929 | |
| 930 case _adapter_collect_args: | |
| 931 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI | |
| 932 break; | |
| 933 | |
| 934 case _adapter_spread_args: | |
| 935 // Handled completely by optimized cases. | |
| 936 __ stop("init_AdapterMethodHandle should not issue this"); | |
| 937 break; | |
| 938 | |
| 939 case _adapter_opt_spread_0: | |
| 940 case _adapter_opt_spread_1: | |
| 941 case _adapter_opt_spread_more: | |
| 942 { | |
| 943 // spread an array out into a group of arguments | |
| 944 __ unimplemented(entry_name(ek)); | |
| 945 } | |
| 946 break; | |
| 947 | |
| 948 case _adapter_flyby: | |
| 949 case _adapter_ricochet: | |
| 950 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI | |
| 951 break; | |
| 952 | |
| 953 default: | |
| 954 ShouldNotReachHere(); | |
| 955 } | |
| 956 | |
| 957 address me_cookie = MethodHandleEntry::start_compiled_entry(_masm, interp_entry); | |
| 958 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI | |
| 959 | |
| 960 init_entry(ek, MethodHandleEntry::finish_compiled_entry(_masm, me_cookie)); | |
| 710 | 961 } |