karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 1 | // Copyright 2011 the V8 project authors. All rights reserved. |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | |
| 28 | #ifndef V8_MIPS_CODE_STUBS_ARM_H_ |
| 29 | #define V8_MIPS_CODE_STUBS_ARM_H_ |
| 30 | |
| 31 | #include "ic-inl.h" |
| 32 | |
| 33 | |
| 34 | namespace v8 { |
| 35 | namespace internal { |
| 36 | |
| 37 | |
danno@chromium.org | ca29dd8 | 2013-04-26 11:59:48 +0000 | [diff] [blame] | 38 | void ArrayNativeCode(MacroAssembler* masm, Label* call_generic_code); |
| 39 | |
| 40 | |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 41 | class StoreBufferOverflowStub: public PlatformCodeStub { |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 42 | public: |
| 43 | explicit StoreBufferOverflowStub(SaveFPRegsMode save_fp) |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 44 | : save_doubles_(save_fp) {} |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 45 | |
| 46 | void Generate(MacroAssembler* masm); |
| 47 | |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 48 | static void GenerateFixedRegStubsAheadOfTime(Isolate* isolate); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 49 | virtual bool SometimesSetsUpAFrame() { return false; } |
| 50 | |
| 51 | private: |
| 52 | SaveFPRegsMode save_doubles_; |
| 53 | |
| 54 | Major MajorKey() { return StoreBufferOverflow; } |
| 55 | int MinorKey() { return (save_doubles_ == kSaveFPRegs) ? 1 : 0; } |
| 56 | }; |
| 57 | |
| 58 | |
danno@chromium.org | 2c45679 | 2011-11-11 12:00:53 +0000 | [diff] [blame] | 59 | class StringHelper : public AllStatic { |
| 60 | public: |
danno@chromium.org | 2c45679 | 2011-11-11 12:00:53 +0000 | [diff] [blame] | 61 | // Generate code for copying a large number of characters. This function |
| 62 | // is allowed to spend extra time setting up conditions to make copying |
| 63 | // faster. Copying of overlapping regions is not supported. |
| 64 | // Dest register ends at the position after the last character written. |
| 65 | static void GenerateCopyCharactersLong(MacroAssembler* masm, |
| 66 | Register dest, |
| 67 | Register src, |
| 68 | Register count, |
| 69 | Register scratch1, |
| 70 | Register scratch2, |
| 71 | Register scratch3, |
| 72 | Register scratch4, |
| 73 | Register scratch5, |
| 74 | int flags); |
| 75 | |
| 76 | |
danno@chromium.org | 2c45679 | 2011-11-11 12:00:53 +0000 | [diff] [blame] | 77 | // Generate string hash. |
| 78 | static void GenerateHashInit(MacroAssembler* masm, |
| 79 | Register hash, |
| 80 | Register character); |
| 81 | |
| 82 | static void GenerateHashAddCharacter(MacroAssembler* masm, |
| 83 | Register hash, |
| 84 | Register character); |
| 85 | |
| 86 | static void GenerateHashGetHash(MacroAssembler* masm, |
| 87 | Register hash); |
| 88 | |
| 89 | private: |
| 90 | DISALLOW_IMPLICIT_CONSTRUCTORS(StringHelper); |
| 91 | }; |
| 92 | |
| 93 | |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 94 | class SubStringStub: public PlatformCodeStub { |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 95 | public: |
| 96 | SubStringStub() {} |
| 97 | |
| 98 | private: |
| 99 | Major MajorKey() { return SubString; } |
| 100 | int MinorKey() { return 0; } |
| 101 | |
| 102 | void Generate(MacroAssembler* masm); |
| 103 | }; |
| 104 | |
yangguo@chromium.org | 4954674 | 2013-12-23 16:17:49 +0000 | [diff] [blame] | 105 | class StoreRegistersStateStub: public PlatformCodeStub { |
| 106 | public: |
| 107 | explicit StoreRegistersStateStub(SaveFPRegsMode with_fp) |
| 108 | : save_doubles_(with_fp) {} |
| 109 | |
| 110 | static void GenerateAheadOfTime(Isolate* isolate); |
| 111 | private: |
| 112 | Major MajorKey() { return StoreRegistersState; } |
| 113 | int MinorKey() { return (save_doubles_ == kSaveFPRegs) ? 1 : 0; } |
| 114 | SaveFPRegsMode save_doubles_; |
| 115 | |
| 116 | void Generate(MacroAssembler* masm); |
| 117 | }; |
| 118 | |
| 119 | class RestoreRegistersStateStub: public PlatformCodeStub { |
| 120 | public: |
| 121 | explicit RestoreRegistersStateStub(SaveFPRegsMode with_fp) |
| 122 | : save_doubles_(with_fp) {} |
| 123 | |
| 124 | static void GenerateAheadOfTime(Isolate* isolate); |
| 125 | private: |
| 126 | Major MajorKey() { return RestoreRegistersState; } |
| 127 | int MinorKey() { return (save_doubles_ == kSaveFPRegs) ? 1 : 0; } |
| 128 | SaveFPRegsMode save_doubles_; |
| 129 | |
| 130 | void Generate(MacroAssembler* masm); |
| 131 | }; |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 132 | |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 133 | class StringCompareStub: public PlatformCodeStub { |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 134 | public: |
| 135 | StringCompareStub() { } |
| 136 | |
| 137 | // Compare two flat ASCII strings and returns result in v0. |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 138 | static void GenerateCompareFlatAsciiStrings(MacroAssembler* masm, |
| 139 | Register left, |
| 140 | Register right, |
| 141 | Register scratch1, |
| 142 | Register scratch2, |
| 143 | Register scratch3, |
| 144 | Register scratch4); |
| 145 | |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 146 | // Compares two flat ASCII strings for equality and returns result |
| 147 | // in v0. |
| 148 | static void GenerateFlatAsciiStringEquals(MacroAssembler* masm, |
| 149 | Register left, |
| 150 | Register right, |
| 151 | Register scratch1, |
| 152 | Register scratch2, |
| 153 | Register scratch3); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 154 | |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 155 | private: |
| 156 | virtual Major MajorKey() { return StringCompare; } |
| 157 | virtual int MinorKey() { return 0; } |
| 158 | virtual void Generate(MacroAssembler* masm); |
| 159 | |
| 160 | static void GenerateAsciiCharsCompareLoop(MacroAssembler* masm, |
| 161 | Register left, |
| 162 | Register right, |
| 163 | Register length, |
| 164 | Register scratch1, |
| 165 | Register scratch2, |
| 166 | Register scratch3, |
| 167 | Label* chars_not_equal); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 168 | }; |
| 169 | |
| 170 | |
| 171 | // This stub can convert a signed int32 to a heap number (double). It does |
| 172 | // not work for int32s that are in Smi range! No GC occurs during this stub |
| 173 | // so you don't have to set up the frame. |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 174 | class WriteInt32ToHeapNumberStub : public PlatformCodeStub { |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 175 | public: |
| 176 | WriteInt32ToHeapNumberStub(Register the_int, |
| 177 | Register the_heap_number, |
| 178 | Register scratch, |
| 179 | Register scratch2) |
| 180 | : the_int_(the_int), |
| 181 | the_heap_number_(the_heap_number), |
| 182 | scratch_(scratch), |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 183 | sign_(scratch2) { |
| 184 | ASSERT(IntRegisterBits::is_valid(the_int_.code())); |
| 185 | ASSERT(HeapNumberRegisterBits::is_valid(the_heap_number_.code())); |
| 186 | ASSERT(ScratchRegisterBits::is_valid(scratch_.code())); |
| 187 | ASSERT(SignRegisterBits::is_valid(sign_.code())); |
| 188 | } |
| 189 | |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 190 | static void GenerateFixedRegStubsAheadOfTime(Isolate* isolate); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 191 | |
| 192 | private: |
| 193 | Register the_int_; |
| 194 | Register the_heap_number_; |
| 195 | Register scratch_; |
| 196 | Register sign_; |
| 197 | |
| 198 | // Minor key encoding in 16 bits. |
| 199 | class IntRegisterBits: public BitField<int, 0, 4> {}; |
| 200 | class HeapNumberRegisterBits: public BitField<int, 4, 4> {}; |
| 201 | class ScratchRegisterBits: public BitField<int, 8, 4> {}; |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 202 | class SignRegisterBits: public BitField<int, 12, 4> {}; |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 203 | |
| 204 | Major MajorKey() { return WriteInt32ToHeapNumber; } |
| 205 | int MinorKey() { |
| 206 | // Encode the parameters in a unique 16 bit value. |
| 207 | return IntRegisterBits::encode(the_int_.code()) |
| 208 | | HeapNumberRegisterBits::encode(the_heap_number_.code()) |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 209 | | ScratchRegisterBits::encode(scratch_.code()) |
| 210 | | SignRegisterBits::encode(sign_.code()); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 211 | } |
| 212 | |
| 213 | void Generate(MacroAssembler* masm); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 214 | }; |
| 215 | |
| 216 | |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 217 | class RecordWriteStub: public PlatformCodeStub { |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 218 | public: |
| 219 | RecordWriteStub(Register object, |
| 220 | Register value, |
| 221 | Register address, |
| 222 | RememberedSetAction remembered_set_action, |
| 223 | SaveFPRegsMode fp_mode) |
| 224 | : object_(object), |
| 225 | value_(value), |
| 226 | address_(address), |
| 227 | remembered_set_action_(remembered_set_action), |
| 228 | save_fp_regs_mode_(fp_mode), |
| 229 | regs_(object, // An input reg. |
| 230 | address, // An input reg. |
| 231 | value) { // One scratch reg. |
| 232 | } |
| 233 | |
| 234 | enum Mode { |
| 235 | STORE_BUFFER_ONLY, |
| 236 | INCREMENTAL, |
| 237 | INCREMENTAL_COMPACTION |
| 238 | }; |
| 239 | |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 240 | virtual bool SometimesSetsUpAFrame() { return false; } |
| 241 | |
| 242 | static void PatchBranchIntoNop(MacroAssembler* masm, int pos) { |
| 243 | const unsigned offset = masm->instr_at(pos) & kImm16Mask; |
| 244 | masm->instr_at_put(pos, BNE | (zero_reg.code() << kRsShift) | |
| 245 | (zero_reg.code() << kRtShift) | (offset & kImm16Mask)); |
| 246 | ASSERT(Assembler::IsBne(masm->instr_at(pos))); |
| 247 | } |
| 248 | |
| 249 | static void PatchNopIntoBranch(MacroAssembler* masm, int pos) { |
| 250 | const unsigned offset = masm->instr_at(pos) & kImm16Mask; |
| 251 | masm->instr_at_put(pos, BEQ | (zero_reg.code() << kRsShift) | |
| 252 | (zero_reg.code() << kRtShift) | (offset & kImm16Mask)); |
| 253 | ASSERT(Assembler::IsBeq(masm->instr_at(pos))); |
| 254 | } |
| 255 | |
| 256 | static Mode GetMode(Code* stub) { |
| 257 | Instr first_instruction = Assembler::instr_at(stub->instruction_start()); |
| 258 | Instr second_instruction = Assembler::instr_at(stub->instruction_start() + |
| 259 | 2 * Assembler::kInstrSize); |
| 260 | |
| 261 | if (Assembler::IsBeq(first_instruction)) { |
| 262 | return INCREMENTAL; |
| 263 | } |
| 264 | |
| 265 | ASSERT(Assembler::IsBne(first_instruction)); |
| 266 | |
| 267 | if (Assembler::IsBeq(second_instruction)) { |
| 268 | return INCREMENTAL_COMPACTION; |
| 269 | } |
| 270 | |
| 271 | ASSERT(Assembler::IsBne(second_instruction)); |
| 272 | |
| 273 | return STORE_BUFFER_ONLY; |
| 274 | } |
| 275 | |
| 276 | static void Patch(Code* stub, Mode mode) { |
| 277 | MacroAssembler masm(NULL, |
| 278 | stub->instruction_start(), |
| 279 | stub->instruction_size()); |
| 280 | switch (mode) { |
| 281 | case STORE_BUFFER_ONLY: |
| 282 | ASSERT(GetMode(stub) == INCREMENTAL || |
| 283 | GetMode(stub) == INCREMENTAL_COMPACTION); |
| 284 | PatchBranchIntoNop(&masm, 0); |
| 285 | PatchBranchIntoNop(&masm, 2 * Assembler::kInstrSize); |
| 286 | break; |
| 287 | case INCREMENTAL: |
| 288 | ASSERT(GetMode(stub) == STORE_BUFFER_ONLY); |
| 289 | PatchNopIntoBranch(&masm, 0); |
| 290 | break; |
| 291 | case INCREMENTAL_COMPACTION: |
| 292 | ASSERT(GetMode(stub) == STORE_BUFFER_ONLY); |
| 293 | PatchNopIntoBranch(&masm, 2 * Assembler::kInstrSize); |
| 294 | break; |
| 295 | } |
| 296 | ASSERT(GetMode(stub) == mode); |
| 297 | CPU::FlushICache(stub->instruction_start(), 4 * Assembler::kInstrSize); |
| 298 | } |
| 299 | |
| 300 | private: |
| 301 | // This is a helper class for freeing up 3 scratch registers. The input is |
| 302 | // two registers that must be preserved and one scratch register provided by |
| 303 | // the caller. |
| 304 | class RegisterAllocation { |
| 305 | public: |
| 306 | RegisterAllocation(Register object, |
| 307 | Register address, |
| 308 | Register scratch0) |
| 309 | : object_(object), |
| 310 | address_(address), |
| 311 | scratch0_(scratch0) { |
| 312 | ASSERT(!AreAliased(scratch0, object, address, no_reg)); |
jkummerow@chromium.org | 8fa5bd9 | 2013-09-02 11:45:09 +0000 | [diff] [blame] | 313 | scratch1_ = GetRegisterThatIsNotOneOf(object_, address_, scratch0_); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 314 | } |
| 315 | |
| 316 | void Save(MacroAssembler* masm) { |
| 317 | ASSERT(!AreAliased(object_, address_, scratch1_, scratch0_)); |
| 318 | // We don't have to save scratch0_ because it was given to us as |
| 319 | // a scratch register. |
| 320 | masm->push(scratch1_); |
| 321 | } |
| 322 | |
| 323 | void Restore(MacroAssembler* masm) { |
| 324 | masm->pop(scratch1_); |
| 325 | } |
| 326 | |
| 327 | // If we have to call into C then we need to save and restore all caller- |
| 328 | // saved registers that were not already preserved. The scratch registers |
| 329 | // will be restored by other means so we don't bother pushing them here. |
| 330 | void SaveCallerSaveRegisters(MacroAssembler* masm, SaveFPRegsMode mode) { |
| 331 | masm->MultiPush((kJSCallerSaved | ra.bit()) & ~scratch1_.bit()); |
| 332 | if (mode == kSaveFPRegs) { |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 333 | masm->MultiPushFPU(kCallerSavedFPU); |
| 334 | } |
| 335 | } |
| 336 | |
| 337 | inline void RestoreCallerSaveRegisters(MacroAssembler*masm, |
| 338 | SaveFPRegsMode mode) { |
| 339 | if (mode == kSaveFPRegs) { |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 340 | masm->MultiPopFPU(kCallerSavedFPU); |
| 341 | } |
| 342 | masm->MultiPop((kJSCallerSaved | ra.bit()) & ~scratch1_.bit()); |
| 343 | } |
| 344 | |
| 345 | inline Register object() { return object_; } |
| 346 | inline Register address() { return address_; } |
| 347 | inline Register scratch0() { return scratch0_; } |
| 348 | inline Register scratch1() { return scratch1_; } |
| 349 | |
| 350 | private: |
| 351 | Register object_; |
| 352 | Register address_; |
| 353 | Register scratch0_; |
| 354 | Register scratch1_; |
| 355 | |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 356 | friend class RecordWriteStub; |
| 357 | }; |
| 358 | |
| 359 | enum OnNoNeedToInformIncrementalMarker { |
| 360 | kReturnOnNoNeedToInformIncrementalMarker, |
| 361 | kUpdateRememberedSetOnNoNeedToInformIncrementalMarker |
| 362 | }; |
| 363 | |
| 364 | void Generate(MacroAssembler* masm); |
| 365 | void GenerateIncremental(MacroAssembler* masm, Mode mode); |
| 366 | void CheckNeedsToInformIncrementalMarker( |
| 367 | MacroAssembler* masm, |
| 368 | OnNoNeedToInformIncrementalMarker on_no_need, |
| 369 | Mode mode); |
titzer@chromium.org | f5a2454 | 2014-03-04 09:06:17 +0000 | [diff] [blame] | 370 | void InformIncrementalMarker(MacroAssembler* masm); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 371 | |
| 372 | Major MajorKey() { return RecordWrite; } |
| 373 | |
| 374 | int MinorKey() { |
| 375 | return ObjectBits::encode(object_.code()) | |
| 376 | ValueBits::encode(value_.code()) | |
| 377 | AddressBits::encode(address_.code()) | |
| 378 | RememberedSetActionBits::encode(remembered_set_action_) | |
| 379 | SaveFPRegsModeBits::encode(save_fp_regs_mode_); |
| 380 | } |
| 381 | |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 382 | void Activate(Code* code) { |
| 383 | code->GetHeap()->incremental_marking()->ActivateGeneratedStub(code); |
| 384 | } |
| 385 | |
| 386 | class ObjectBits: public BitField<int, 0, 5> {}; |
| 387 | class ValueBits: public BitField<int, 5, 5> {}; |
| 388 | class AddressBits: public BitField<int, 10, 5> {}; |
| 389 | class RememberedSetActionBits: public BitField<RememberedSetAction, 15, 1> {}; |
| 390 | class SaveFPRegsModeBits: public BitField<SaveFPRegsMode, 16, 1> {}; |
| 391 | |
| 392 | Register object_; |
| 393 | Register value_; |
| 394 | Register address_; |
| 395 | RememberedSetAction remembered_set_action_; |
| 396 | SaveFPRegsMode save_fp_regs_mode_; |
| 397 | Label slow_; |
| 398 | RegisterAllocation regs_; |
| 399 | }; |
| 400 | |
| 401 | |
vegorov@chromium.org | 7304bca | 2011-05-16 12:14:13 +0000 | [diff] [blame] | 402 | // Trampoline stub to call into native code. To call safely into native code |
| 403 | // in the presence of compacting GC (which can move code objects) we need to |
| 404 | // keep the code which called into native pinned in the memory. Currently the |
| 405 | // simplest approach is to generate such stub early enough so it can never be |
| 406 | // moved by GC |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 407 | class DirectCEntryStub: public PlatformCodeStub { |
vegorov@chromium.org | 7304bca | 2011-05-16 12:14:13 +0000 | [diff] [blame] | 408 | public: |
| 409 | DirectCEntryStub() {} |
| 410 | void Generate(MacroAssembler* masm); |
vegorov@chromium.org | 7304bca | 2011-05-16 12:14:13 +0000 | [diff] [blame] | 411 | void GenerateCall(MacroAssembler* masm, Register target); |
| 412 | |
| 413 | private: |
| 414 | Major MajorKey() { return DirectCEntry; } |
| 415 | int MinorKey() { return 0; } |
| 416 | |
| 417 | bool NeedsImmovableCode() { return true; } |
vegorov@chromium.org | 7304bca | 2011-05-16 12:14:13 +0000 | [diff] [blame] | 418 | }; |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 419 | |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 420 | |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 421 | class NameDictionaryLookupStub: public PlatformCodeStub { |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 422 | public: |
| 423 | enum LookupMode { POSITIVE_LOOKUP, NEGATIVE_LOOKUP }; |
| 424 | |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 425 | explicit NameDictionaryLookupStub(LookupMode mode) : mode_(mode) { } |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 426 | |
| 427 | void Generate(MacroAssembler* masm); |
| 428 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 429 | static void GenerateNegativeLookup(MacroAssembler* masm, |
| 430 | Label* miss, |
| 431 | Label* done, |
| 432 | Register receiver, |
| 433 | Register properties, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 434 | Handle<Name> name, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 435 | Register scratch0); |
| 436 | |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 437 | static void GeneratePositiveLookup(MacroAssembler* masm, |
| 438 | Label* miss, |
| 439 | Label* done, |
| 440 | Register elements, |
| 441 | Register name, |
| 442 | Register r0, |
| 443 | Register r1); |
| 444 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 445 | virtual bool SometimesSetsUpAFrame() { return false; } |
| 446 | |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 447 | private: |
| 448 | static const int kInlinedProbes = 4; |
| 449 | static const int kTotalProbes = 20; |
| 450 | |
| 451 | static const int kCapacityOffset = |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 452 | NameDictionary::kHeaderSize + |
| 453 | NameDictionary::kCapacityIndex * kPointerSize; |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 454 | |
| 455 | static const int kElementsStartOffset = |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 456 | NameDictionary::kHeaderSize + |
| 457 | NameDictionary::kElementsStartIndex * kPointerSize; |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 458 | |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 459 | Major MajorKey() { return NameDictionaryLookup; } |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 460 | |
| 461 | int MinorKey() { |
| 462 | return LookupModeBits::encode(mode_); |
| 463 | } |
| 464 | |
| 465 | class LookupModeBits: public BitField<LookupMode, 0, 1> {}; |
| 466 | |
| 467 | LookupMode mode_; |
| 468 | }; |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 469 | |
| 470 | |
| 471 | } } // namespace v8::internal |
| 472 | |
| 473 | #endif // V8_MIPS_CODE_STUBS_ARM_H_ |