jkummerow@chromium.org | 05ed9dd | 2012-01-23 14:42:48 +0000 | [diff] [blame] | 1 | // Copyright 2012 the V8 project authors. All rights reserved. |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +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 | #include "v8.h" |
| 29 | |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 30 | #if defined(V8_TARGET_ARCH_MIPS) |
| 31 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 32 | #include "ic-inl.h" |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 33 | #include "codegen.h" |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 34 | #include "stub-cache.h" |
| 35 | |
| 36 | namespace v8 { |
| 37 | namespace internal { |
| 38 | |
| 39 | #define __ ACCESS_MASM(masm) |
| 40 | |
| 41 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 42 | static void ProbeTable(Isolate* isolate, |
| 43 | MacroAssembler* masm, |
| 44 | Code::Flags flags, |
| 45 | StubCache::Table table, |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 46 | Register receiver, |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 47 | Register name, |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 48 | // Number of the cache entry, not scaled. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 49 | Register offset, |
| 50 | Register scratch, |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 51 | Register scratch2, |
| 52 | Register offset_scratch) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 53 | ExternalReference key_offset(isolate->stub_cache()->key_reference(table)); |
| 54 | ExternalReference value_offset(isolate->stub_cache()->value_reference(table)); |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 55 | ExternalReference map_offset(isolate->stub_cache()->map_reference(table)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 56 | |
| 57 | uint32_t key_off_addr = reinterpret_cast<uint32_t>(key_offset.address()); |
| 58 | uint32_t value_off_addr = reinterpret_cast<uint32_t>(value_offset.address()); |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 59 | uint32_t map_off_addr = reinterpret_cast<uint32_t>(map_offset.address()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 60 | |
| 61 | // Check the relative positions of the address fields. |
| 62 | ASSERT(value_off_addr > key_off_addr); |
| 63 | ASSERT((value_off_addr - key_off_addr) % 4 == 0); |
| 64 | ASSERT((value_off_addr - key_off_addr) < (256 * 4)); |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 65 | ASSERT(map_off_addr > key_off_addr); |
| 66 | ASSERT((map_off_addr - key_off_addr) % 4 == 0); |
| 67 | ASSERT((map_off_addr - key_off_addr) < (256 * 4)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 68 | |
| 69 | Label miss; |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 70 | Register base_addr = scratch; |
| 71 | scratch = no_reg; |
| 72 | |
| 73 | // Multiply by 3 because there are 3 fields per entry (name, code, map). |
| 74 | __ sll(offset_scratch, offset, 1); |
| 75 | __ Addu(offset_scratch, offset_scratch, offset); |
| 76 | |
| 77 | // Calculate the base address of the entry. |
| 78 | __ li(base_addr, Operand(key_offset)); |
| 79 | __ sll(at, offset_scratch, kPointerSizeLog2); |
| 80 | __ Addu(base_addr, base_addr, at); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 81 | |
| 82 | // Check that the key in the entry matches the name. |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 83 | __ lw(at, MemOperand(base_addr, 0)); |
| 84 | __ Branch(&miss, ne, name, Operand(at)); |
| 85 | |
| 86 | // Check the map matches. |
| 87 | __ lw(at, MemOperand(base_addr, map_off_addr - key_off_addr)); |
| 88 | __ lw(scratch2, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
| 89 | __ Branch(&miss, ne, at, Operand(scratch2)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 90 | |
| 91 | // Get the code entry from the cache. |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 92 | Register code = scratch2; |
| 93 | scratch2 = no_reg; |
| 94 | __ lw(code, MemOperand(base_addr, value_off_addr - key_off_addr)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 95 | |
| 96 | // Check that the flags match what we're looking for. |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 97 | Register flags_reg = base_addr; |
| 98 | base_addr = no_reg; |
| 99 | __ lw(flags_reg, FieldMemOperand(code, Code::kFlagsOffset)); |
| 100 | __ And(flags_reg, flags_reg, Operand(~Code::kFlagsNotUsedInLookup)); |
| 101 | __ Branch(&miss, ne, flags_reg, Operand(flags)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 102 | |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 103 | #ifdef DEBUG |
| 104 | if (FLAG_test_secondary_stub_cache && table == StubCache::kPrimary) { |
| 105 | __ jmp(&miss); |
| 106 | } else if (FLAG_test_primary_stub_cache && table == StubCache::kSecondary) { |
| 107 | __ jmp(&miss); |
| 108 | } |
| 109 | #endif |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 110 | |
| 111 | // Jump to the first instruction in the code stub. |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 112 | __ Addu(at, code, Operand(Code::kHeaderSize - kHeapObjectTag)); |
| 113 | __ Jump(at); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 114 | |
| 115 | // Miss: fall through. |
| 116 | __ bind(&miss); |
| 117 | } |
| 118 | |
| 119 | |
| 120 | // Helper function used to check that the dictionary doesn't contain |
| 121 | // the property. This function may return false negatives, so miss_label |
| 122 | // must always call a backup property check that is complete. |
| 123 | // This function is safe to call if the receiver has fast properties. |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 124 | // Name must be unique and receiver must be a heap object. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 125 | static void GenerateDictionaryNegativeLookup(MacroAssembler* masm, |
| 126 | Label* miss_label, |
| 127 | Register receiver, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 128 | Handle<Name> name, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 129 | Register scratch0, |
| 130 | Register scratch1) { |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 131 | ASSERT(name->IsUniqueName()); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 132 | Counters* counters = masm->isolate()->counters(); |
| 133 | __ IncrementCounter(counters->negative_lookups(), 1, scratch0, scratch1); |
| 134 | __ IncrementCounter(counters->negative_lookups_miss(), 1, scratch0, scratch1); |
| 135 | |
| 136 | Label done; |
| 137 | |
| 138 | const int kInterceptorOrAccessCheckNeededMask = |
| 139 | (1 << Map::kHasNamedInterceptor) | (1 << Map::kIsAccessCheckNeeded); |
| 140 | |
| 141 | // Bail out if the receiver has a named interceptor or requires access checks. |
| 142 | Register map = scratch1; |
| 143 | __ lw(map, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
| 144 | __ lbu(scratch0, FieldMemOperand(map, Map::kBitFieldOffset)); |
| 145 | __ And(scratch0, scratch0, Operand(kInterceptorOrAccessCheckNeededMask)); |
| 146 | __ Branch(miss_label, ne, scratch0, Operand(zero_reg)); |
| 147 | |
| 148 | // Check that receiver is a JSObject. |
| 149 | __ lbu(scratch0, FieldMemOperand(map, Map::kInstanceTypeOffset)); |
| 150 | __ Branch(miss_label, lt, scratch0, Operand(FIRST_SPEC_OBJECT_TYPE)); |
| 151 | |
| 152 | // Load properties array. |
| 153 | Register properties = scratch0; |
| 154 | __ lw(properties, FieldMemOperand(receiver, JSObject::kPropertiesOffset)); |
| 155 | // Check that the properties array is a dictionary. |
| 156 | __ lw(map, FieldMemOperand(properties, HeapObject::kMapOffset)); |
| 157 | Register tmp = properties; |
| 158 | __ LoadRoot(tmp, Heap::kHashTableMapRootIndex); |
| 159 | __ Branch(miss_label, ne, map, Operand(tmp)); |
| 160 | |
| 161 | // Restore the temporarily used register. |
| 162 | __ lw(properties, FieldMemOperand(receiver, JSObject::kPropertiesOffset)); |
| 163 | |
| 164 | |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 165 | NameDictionaryLookupStub::GenerateNegativeLookup(masm, |
| 166 | miss_label, |
| 167 | &done, |
| 168 | receiver, |
| 169 | properties, |
| 170 | name, |
| 171 | scratch1); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 172 | __ bind(&done); |
| 173 | __ DecrementCounter(counters->negative_lookups_miss(), 1, scratch0, scratch1); |
| 174 | } |
| 175 | |
| 176 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 177 | void StubCache::GenerateProbe(MacroAssembler* masm, |
| 178 | Code::Flags flags, |
| 179 | Register receiver, |
| 180 | Register name, |
| 181 | Register scratch, |
fschneider@chromium.org | e03fb64 | 2010-11-01 12:34:09 +0000 | [diff] [blame] | 182 | Register extra, |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 183 | Register extra2, |
| 184 | Register extra3) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 185 | Isolate* isolate = masm->isolate(); |
| 186 | Label miss; |
| 187 | |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 188 | // Make sure that code is valid. The multiplying code relies on the |
| 189 | // entry size being 12. |
| 190 | ASSERT(sizeof(Entry) == 12); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 191 | |
| 192 | // Make sure the flags does not name a specific type. |
| 193 | ASSERT(Code::ExtractTypeFromFlags(flags) == 0); |
| 194 | |
| 195 | // Make sure that there are no register conflicts. |
| 196 | ASSERT(!scratch.is(receiver)); |
| 197 | ASSERT(!scratch.is(name)); |
| 198 | ASSERT(!extra.is(receiver)); |
| 199 | ASSERT(!extra.is(name)); |
| 200 | ASSERT(!extra.is(scratch)); |
| 201 | ASSERT(!extra2.is(receiver)); |
| 202 | ASSERT(!extra2.is(name)); |
| 203 | ASSERT(!extra2.is(scratch)); |
| 204 | ASSERT(!extra2.is(extra)); |
| 205 | |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 206 | // Check register validity. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 207 | ASSERT(!scratch.is(no_reg)); |
| 208 | ASSERT(!extra.is(no_reg)); |
| 209 | ASSERT(!extra2.is(no_reg)); |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 210 | ASSERT(!extra3.is(no_reg)); |
| 211 | |
| 212 | Counters* counters = masm->isolate()->counters(); |
| 213 | __ IncrementCounter(counters->megamorphic_stub_cache_probes(), 1, |
| 214 | extra2, extra3); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 215 | |
| 216 | // Check that the receiver isn't a smi. |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 217 | __ JumpIfSmi(receiver, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 218 | |
| 219 | // Get the map of the receiver and compute the hash. |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 220 | __ lw(scratch, FieldMemOperand(name, Name::kHashFieldOffset)); |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 221 | __ lw(at, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
| 222 | __ Addu(scratch, scratch, at); |
| 223 | uint32_t mask = kPrimaryTableSize - 1; |
| 224 | // We shift out the last two bits because they are not part of the hash and |
| 225 | // they are always 01 for maps. |
| 226 | __ srl(scratch, scratch, kHeapObjectTagSize); |
| 227 | __ Xor(scratch, scratch, Operand((flags >> kHeapObjectTagSize) & mask)); |
| 228 | __ And(scratch, scratch, Operand(mask)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 229 | |
| 230 | // Probe the primary table. |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 231 | ProbeTable(isolate, |
| 232 | masm, |
| 233 | flags, |
| 234 | kPrimary, |
| 235 | receiver, |
| 236 | name, |
| 237 | scratch, |
| 238 | extra, |
| 239 | extra2, |
| 240 | extra3); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 241 | |
| 242 | // Primary miss: Compute hash for secondary probe. |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 243 | __ srl(at, name, kHeapObjectTagSize); |
| 244 | __ Subu(scratch, scratch, at); |
| 245 | uint32_t mask2 = kSecondaryTableSize - 1; |
| 246 | __ Addu(scratch, scratch, Operand((flags >> kHeapObjectTagSize) & mask2)); |
| 247 | __ And(scratch, scratch, Operand(mask2)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 248 | |
| 249 | // Probe the secondary table. |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 250 | ProbeTable(isolate, |
| 251 | masm, |
| 252 | flags, |
| 253 | kSecondary, |
| 254 | receiver, |
| 255 | name, |
| 256 | scratch, |
| 257 | extra, |
| 258 | extra2, |
| 259 | extra3); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 260 | |
| 261 | // Cache miss: Fall-through and let caller handle the miss by |
| 262 | // entering the runtime system. |
| 263 | __ bind(&miss); |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 264 | __ IncrementCounter(counters->megamorphic_stub_cache_misses(), 1, |
| 265 | extra2, extra3); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 266 | } |
| 267 | |
| 268 | |
| 269 | void StubCompiler::GenerateLoadGlobalFunctionPrototype(MacroAssembler* masm, |
| 270 | int index, |
| 271 | Register prototype) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 272 | // Load the global or builtins object from the current context. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 273 | __ lw(prototype, |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 274 | MemOperand(cp, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX))); |
| 275 | // Load the native context from the global or builtins object. |
| 276 | __ lw(prototype, |
| 277 | FieldMemOperand(prototype, GlobalObject::kNativeContextOffset)); |
| 278 | // Load the function from the native context. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 279 | __ lw(prototype, MemOperand(prototype, Context::SlotOffset(index))); |
| 280 | // Load the initial map. The global functions all have initial maps. |
| 281 | __ lw(prototype, |
| 282 | FieldMemOperand(prototype, JSFunction::kPrototypeOrInitialMapOffset)); |
| 283 | // Load the prototype from the initial map. |
| 284 | __ lw(prototype, FieldMemOperand(prototype, Map::kPrototypeOffset)); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 285 | } |
| 286 | |
| 287 | |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 288 | void StubCompiler::GenerateDirectLoadGlobalFunctionPrototype( |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 289 | MacroAssembler* masm, |
| 290 | int index, |
| 291 | Register prototype, |
| 292 | Label* miss) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 293 | Isolate* isolate = masm->isolate(); |
| 294 | // Check we're still in the same context. |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 295 | __ lw(prototype, |
| 296 | MemOperand(cp, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX))); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 297 | ASSERT(!prototype.is(at)); |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 298 | __ li(at, isolate->global_object()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 299 | __ Branch(miss, ne, prototype, Operand(at)); |
| 300 | // Get the global function with the given index. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 301 | Handle<JSFunction> function( |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 302 | JSFunction::cast(isolate->native_context()->get(index))); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 303 | // Load its initial map. The global functions all have initial maps. |
| 304 | __ li(prototype, Handle<Map>(function->initial_map())); |
| 305 | // Load the prototype from the initial map. |
| 306 | __ lw(prototype, FieldMemOperand(prototype, Map::kPrototypeOffset)); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 307 | } |
| 308 | |
| 309 | |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame^] | 310 | void StubCompiler::GenerateFastPropertyLoad(MacroAssembler* masm, |
| 311 | Register dst, |
| 312 | Register src, |
| 313 | bool inobject, |
| 314 | int index, |
| 315 | Representation representation) { |
| 316 | ASSERT(!FLAG_track_double_fields || !representation.IsDouble()); |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 317 | int offset = index * kPointerSize; |
| 318 | if (!inobject) { |
| 319 | // Calculate the offset into the properties array. |
| 320 | offset = offset + FixedArray::kHeaderSize; |
| 321 | __ lw(dst, FieldMemOperand(src, JSObject::kPropertiesOffset)); |
| 322 | src = dst; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 323 | } |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 324 | __ lw(dst, FieldMemOperand(src, offset)); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 325 | } |
| 326 | |
| 327 | |
| 328 | void StubCompiler::GenerateLoadArrayLength(MacroAssembler* masm, |
| 329 | Register receiver, |
| 330 | Register scratch, |
| 331 | Label* miss_label) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 332 | // Check that the receiver isn't a smi. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 333 | __ JumpIfSmi(receiver, miss_label); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 334 | |
| 335 | // Check that the object is a JS array. |
| 336 | __ GetObjectType(receiver, scratch, scratch); |
| 337 | __ Branch(miss_label, ne, scratch, Operand(JS_ARRAY_TYPE)); |
| 338 | |
| 339 | // Load length directly from the JS array. |
| 340 | __ lw(v0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 341 | __ Ret(); |
| 342 | } |
| 343 | |
| 344 | |
| 345 | // Generate code to check if an object is a string. If the object is a |
| 346 | // heap object, its map's instance type is left in the scratch1 register. |
| 347 | // If this is not needed, scratch1 and scratch2 may be the same register. |
| 348 | static void GenerateStringCheck(MacroAssembler* masm, |
| 349 | Register receiver, |
| 350 | Register scratch1, |
| 351 | Register scratch2, |
| 352 | Label* smi, |
| 353 | Label* non_string_object) { |
| 354 | // Check that the receiver isn't a smi. |
| 355 | __ JumpIfSmi(receiver, smi, t0); |
| 356 | |
| 357 | // Check that the object is a string. |
| 358 | __ lw(scratch1, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
| 359 | __ lbu(scratch1, FieldMemOperand(scratch1, Map::kInstanceTypeOffset)); |
| 360 | __ And(scratch2, scratch1, Operand(kIsNotStringMask)); |
| 361 | // The cast is to resolve the overload for the argument of 0x0. |
| 362 | __ Branch(non_string_object, |
| 363 | ne, |
| 364 | scratch2, |
| 365 | Operand(static_cast<int32_t>(kStringTag))); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 366 | } |
| 367 | |
| 368 | |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 369 | // Generate code to load the length from a string object and return the length. |
| 370 | // If the receiver object is not a string or a wrapped string object the |
| 371 | // execution continues at the miss label. The register containing the |
| 372 | // receiver is potentially clobbered. |
| 373 | void StubCompiler::GenerateLoadStringLength(MacroAssembler* masm, |
| 374 | Register receiver, |
| 375 | Register scratch1, |
| 376 | Register scratch2, |
| 377 | Label* miss, |
| 378 | bool support_wrappers) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 379 | Label check_wrapper; |
| 380 | |
| 381 | // Check if the object is a string leaving the instance type in the |
| 382 | // scratch1 register. |
| 383 | GenerateStringCheck(masm, receiver, scratch1, scratch2, miss, |
| 384 | support_wrappers ? &check_wrapper : miss); |
| 385 | |
| 386 | // Load length directly from the string. |
| 387 | __ lw(v0, FieldMemOperand(receiver, String::kLengthOffset)); |
| 388 | __ Ret(); |
| 389 | |
| 390 | if (support_wrappers) { |
| 391 | // Check if the object is a JSValue wrapper. |
| 392 | __ bind(&check_wrapper); |
| 393 | __ Branch(miss, ne, scratch1, Operand(JS_VALUE_TYPE)); |
| 394 | |
| 395 | // Unwrap the value and check if the wrapped value is a string. |
| 396 | __ lw(scratch1, FieldMemOperand(receiver, JSValue::kValueOffset)); |
| 397 | GenerateStringCheck(masm, scratch1, scratch2, scratch2, miss, miss); |
| 398 | __ lw(v0, FieldMemOperand(scratch1, String::kLengthOffset)); |
| 399 | __ Ret(); |
| 400 | } |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 401 | } |
| 402 | |
| 403 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 404 | void StubCompiler::GenerateLoadFunctionPrototype(MacroAssembler* masm, |
| 405 | Register receiver, |
| 406 | Register scratch1, |
| 407 | Register scratch2, |
| 408 | Label* miss_label) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 409 | __ TryGetFunctionPrototype(receiver, scratch1, scratch2, miss_label); |
| 410 | __ mov(v0, scratch1); |
| 411 | __ Ret(); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 412 | } |
| 413 | |
| 414 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 415 | // Generate code to check that a global property cell is empty. Create |
| 416 | // the property cell at compilation time if no cell exists for the |
| 417 | // property. |
| 418 | static void GenerateCheckPropertyCell(MacroAssembler* masm, |
| 419 | Handle<GlobalObject> global, |
| 420 | Handle<Name> name, |
| 421 | Register scratch, |
| 422 | Label* miss) { |
| 423 | Handle<JSGlobalPropertyCell> cell = |
| 424 | GlobalObject::EnsurePropertyCell(global, name); |
| 425 | ASSERT(cell->value()->IsTheHole()); |
| 426 | __ li(scratch, Operand(cell)); |
| 427 | __ lw(scratch, |
| 428 | FieldMemOperand(scratch, JSGlobalPropertyCell::kValueOffset)); |
| 429 | __ LoadRoot(at, Heap::kTheHoleValueRootIndex); |
| 430 | __ Branch(miss, ne, scratch, Operand(at)); |
| 431 | } |
| 432 | |
| 433 | |
| 434 | // Generate StoreTransition code, value is passed in a0 register. |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 435 | // After executing generated code, the receiver_reg and name_reg |
| 436 | // may be clobbered. |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 437 | void StubCompiler::GenerateStoreTransition(MacroAssembler* masm, |
| 438 | Handle<JSObject> object, |
| 439 | LookupResult* lookup, |
| 440 | Handle<Map> transition, |
| 441 | Handle<Name> name, |
| 442 | Register receiver_reg, |
| 443 | Register name_reg, |
| 444 | Register value_reg, |
| 445 | Register scratch1, |
| 446 | Register scratch2, |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame^] | 447 | Register scratch3, |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 448 | Label* miss_label, |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame^] | 449 | Label* miss_restore_name, |
| 450 | Label* slow) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 451 | // a0 : value. |
| 452 | Label exit; |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 453 | |
jkummerow@chromium.org | 05ed9dd | 2012-01-23 14:42:48 +0000 | [diff] [blame] | 454 | // Check that the map of the object hasn't changed. |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 455 | __ CheckMap(receiver_reg, scratch1, Handle<Map>(object->map()), miss_label, |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 456 | DO_SMI_CHECK, REQUIRE_EXACT_MAP); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 457 | |
| 458 | // Perform global security token check if needed. |
| 459 | if (object->IsJSGlobalProxy()) { |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 460 | __ CheckAccessGlobalProxy(receiver_reg, scratch1, miss_label); |
| 461 | } |
| 462 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 463 | int descriptor = transition->LastAdded(); |
| 464 | DescriptorArray* descriptors = transition->instance_descriptors(); |
| 465 | PropertyDetails details = descriptors->GetDetails(descriptor); |
| 466 | Representation representation = details.representation(); |
| 467 | ASSERT(!representation.IsNone()); |
| 468 | |
| 469 | // Ensure no transitions to deprecated maps are followed. |
| 470 | __ CheckMapDeprecated(transition, scratch1, miss_label); |
| 471 | |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 472 | // Check that we are allowed to write this. |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 473 | if (object->GetPrototype()->IsJSObject()) { |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 474 | JSObject* holder; |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 475 | // holder == object indicates that no property was found. |
| 476 | if (lookup->holder() != *object) { |
| 477 | holder = lookup->holder(); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 478 | } else { |
| 479 | // Find the top object. |
| 480 | holder = *object; |
| 481 | do { |
| 482 | holder = JSObject::cast(holder->GetPrototype()); |
| 483 | } while (holder->GetPrototype()->IsJSObject()); |
| 484 | } |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 485 | Register holder_reg = CheckPrototypes( |
| 486 | object, receiver_reg, Handle<JSObject>(holder), name_reg, |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame^] | 487 | scratch1, scratch2, name, miss_restore_name, SKIP_RECEIVER); |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 488 | // If no property was found, and the holder (the last object in the |
| 489 | // prototype chain) is in slow mode, we need to do a negative lookup on the |
| 490 | // holder. |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 491 | if (lookup->holder() == *object) { |
| 492 | if (holder->IsJSGlobalObject()) { |
| 493 | GenerateCheckPropertyCell( |
| 494 | masm, |
| 495 | Handle<GlobalObject>(GlobalObject::cast(holder)), |
| 496 | name, |
| 497 | scratch1, |
| 498 | miss_restore_name); |
| 499 | } else if (!holder->HasFastProperties() && !holder->IsJSGlobalProxy()) { |
| 500 | GenerateDictionaryNegativeLookup( |
| 501 | masm, miss_restore_name, holder_reg, name, scratch1, scratch2); |
| 502 | } |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 503 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 504 | } |
| 505 | |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame^] | 506 | Register storage_reg = name_reg; |
| 507 | |
| 508 | if (FLAG_track_fields && representation.IsSmi()) { |
| 509 | __ JumpIfNotSmi(value_reg, miss_restore_name); |
| 510 | } else if (FLAG_track_double_fields && representation.IsDouble()) { |
| 511 | Label do_store, heap_number; |
| 512 | __ LoadRoot(scratch3, Heap::kHeapNumberMapRootIndex); |
| 513 | __ AllocateHeapNumber(storage_reg, scratch1, scratch2, scratch3, slow); |
| 514 | |
| 515 | __ JumpIfNotSmi(value_reg, &heap_number); |
| 516 | __ SmiUntag(scratch1, value_reg); |
| 517 | __ mtc1(scratch1, f6); |
| 518 | __ cvt_d_w(f4, f6); |
| 519 | __ jmp(&do_store); |
| 520 | |
| 521 | __ bind(&heap_number); |
| 522 | __ CheckMap(value_reg, scratch1, Heap::kHeapNumberMapRootIndex, |
| 523 | miss_restore_name, DONT_DO_SMI_CHECK); |
| 524 | __ ldc1(f4, FieldMemOperand(value_reg, HeapNumber::kValueOffset)); |
| 525 | |
| 526 | __ bind(&do_store); |
| 527 | __ sdc1(f4, FieldMemOperand(storage_reg, HeapNumber::kValueOffset)); |
| 528 | } |
| 529 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 530 | // Stub never generated for non-global objects that require access |
| 531 | // checks. |
| 532 | ASSERT(object->IsJSGlobalProxy() || !object->IsAccessCheckNeeded()); |
| 533 | |
| 534 | // Perform map transition for the receiver if necessary. |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 535 | if (object->map()->unused_property_fields() == 0) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 536 | // The properties must be extended before we can store the value. |
| 537 | // We jump to a runtime call that extends the properties array. |
| 538 | __ push(receiver_reg); |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 539 | __ li(a2, Operand(transition)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 540 | __ Push(a2, a0); |
| 541 | __ TailCallExternalReference( |
| 542 | ExternalReference(IC_Utility(IC::kSharedStoreIC_ExtendStorage), |
| 543 | masm->isolate()), |
| 544 | 3, 1); |
| 545 | return; |
| 546 | } |
| 547 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 548 | // Update the map of the object. |
| 549 | __ li(scratch1, Operand(transition)); |
| 550 | __ sw(scratch1, FieldMemOperand(receiver_reg, HeapObject::kMapOffset)); |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 551 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 552 | // Update the write barrier for the map field and pass the now unused |
| 553 | // name_reg as scratch register. |
| 554 | __ RecordWriteField(receiver_reg, |
| 555 | HeapObject::kMapOffset, |
| 556 | scratch1, |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame^] | 557 | scratch2, |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 558 | kRAHasNotBeenSaved, |
| 559 | kDontSaveFPRegs, |
| 560 | OMIT_REMEMBERED_SET, |
| 561 | OMIT_SMI_CHECK); |
| 562 | |
| 563 | int index = transition->instance_descriptors()->GetFieldIndex( |
| 564 | transition->LastAdded()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 565 | |
| 566 | // Adjust for the number of properties stored in the object. Even in the |
| 567 | // face of a transition we can use the old map here because the size of the |
| 568 | // object and the number of in-object properties is not going to change. |
| 569 | index -= object->map()->inobject_properties(); |
| 570 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 571 | // TODO(verwaest): Share this code as a code stub. |
| 572 | if (index < 0) { |
| 573 | // Set the property straight into the object. |
| 574 | int offset = object->map()->instance_size() + (index * kPointerSize); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame^] | 575 | if (FLAG_track_double_fields && representation.IsDouble()) { |
| 576 | __ sw(storage_reg, FieldMemOperand(receiver_reg, offset)); |
| 577 | } else { |
| 578 | __ sw(value_reg, FieldMemOperand(receiver_reg, offset)); |
| 579 | } |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 580 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 581 | if (!FLAG_track_fields || !representation.IsSmi()) { |
| 582 | // Skip updating write barrier if storing a smi. |
| 583 | __ JumpIfSmi(value_reg, &exit); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 584 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 585 | // Update the write barrier for the array address. |
| 586 | // Pass the now unused name_reg as a scratch register. |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame^] | 587 | if (!FLAG_track_double_fields || !representation.IsDouble()) { |
| 588 | __ mov(name_reg, value_reg); |
| 589 | } else { |
| 590 | ASSERT(storage_reg.is(name_reg)); |
| 591 | } |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 592 | __ RecordWriteField(receiver_reg, |
| 593 | offset, |
| 594 | name_reg, |
| 595 | scratch1, |
| 596 | kRAHasNotBeenSaved, |
| 597 | kDontSaveFPRegs); |
| 598 | } |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 599 | } else { |
| 600 | // Write to the properties array. |
| 601 | int offset = index * kPointerSize + FixedArray::kHeaderSize; |
| 602 | // Get the properties array |
| 603 | __ lw(scratch1, |
| 604 | FieldMemOperand(receiver_reg, JSObject::kPropertiesOffset)); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame^] | 605 | if (FLAG_track_double_fields && representation.IsDouble()) { |
| 606 | __ sw(storage_reg, FieldMemOperand(scratch1, offset)); |
| 607 | } else { |
| 608 | __ sw(value_reg, FieldMemOperand(scratch1, offset)); |
| 609 | } |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 610 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 611 | if (!FLAG_track_fields || !representation.IsSmi()) { |
| 612 | // Skip updating write barrier if storing a smi. |
| 613 | __ JumpIfSmi(value_reg, &exit); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 614 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 615 | // Update the write barrier for the array address. |
| 616 | // Ok to clobber receiver_reg and name_reg, since we return. |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame^] | 617 | if (!FLAG_track_double_fields || !representation.IsDouble()) { |
| 618 | __ mov(name_reg, value_reg); |
| 619 | } else { |
| 620 | ASSERT(storage_reg.is(name_reg)); |
| 621 | } |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 622 | __ mov(name_reg, value_reg); |
| 623 | __ RecordWriteField(scratch1, |
| 624 | offset, |
| 625 | name_reg, |
| 626 | receiver_reg, |
| 627 | kRAHasNotBeenSaved, |
| 628 | kDontSaveFPRegs); |
| 629 | } |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 630 | } |
| 631 | |
| 632 | // Return the value (register v0). |
| 633 | ASSERT(value_reg.is(a0)); |
| 634 | __ bind(&exit); |
| 635 | __ mov(v0, a0); |
| 636 | __ Ret(); |
| 637 | } |
| 638 | |
| 639 | |
| 640 | // Generate StoreField code, value is passed in a0 register. |
| 641 | // When leaving generated code after success, the receiver_reg and name_reg |
| 642 | // may be clobbered. Upon branch to miss_label, the receiver and name |
| 643 | // registers have their original values. |
| 644 | void StubCompiler::GenerateStoreField(MacroAssembler* masm, |
| 645 | Handle<JSObject> object, |
| 646 | LookupResult* lookup, |
| 647 | Register receiver_reg, |
| 648 | Register name_reg, |
| 649 | Register value_reg, |
| 650 | Register scratch1, |
| 651 | Register scratch2, |
| 652 | Label* miss_label) { |
| 653 | // a0 : value |
| 654 | Label exit; |
| 655 | |
| 656 | // Check that the map of the object hasn't changed. |
| 657 | __ CheckMap(receiver_reg, scratch1, Handle<Map>(object->map()), miss_label, |
| 658 | DO_SMI_CHECK, ALLOW_ELEMENT_TRANSITION_MAPS); |
| 659 | |
| 660 | // Perform global security token check if needed. |
| 661 | if (object->IsJSGlobalProxy()) { |
| 662 | __ CheckAccessGlobalProxy(receiver_reg, scratch1, miss_label); |
| 663 | } |
| 664 | |
| 665 | // Stub never generated for non-global objects that require access |
| 666 | // checks. |
| 667 | ASSERT(object->IsJSGlobalProxy() || !object->IsAccessCheckNeeded()); |
| 668 | |
| 669 | int index = lookup->GetFieldIndex().field_index(); |
| 670 | |
| 671 | // Adjust for the number of properties stored in the object. Even in the |
| 672 | // face of a transition we can use the old map here because the size of the |
| 673 | // object and the number of in-object properties is not going to change. |
| 674 | index -= object->map()->inobject_properties(); |
| 675 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 676 | Representation representation = lookup->representation(); |
| 677 | ASSERT(!representation.IsNone()); |
| 678 | if (FLAG_track_fields && representation.IsSmi()) { |
| 679 | __ JumpIfNotSmi(value_reg, miss_label); |
| 680 | } else if (FLAG_track_double_fields && representation.IsDouble()) { |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame^] | 681 | // Load the double storage. |
| 682 | if (index < 0) { |
| 683 | int offset = object->map()->instance_size() + (index * kPointerSize); |
| 684 | __ lw(scratch1, FieldMemOperand(receiver_reg, offset)); |
| 685 | } else { |
| 686 | __ lw(scratch1, |
| 687 | FieldMemOperand(receiver_reg, JSObject::kPropertiesOffset)); |
| 688 | int offset = index * kPointerSize + FixedArray::kHeaderSize; |
| 689 | __ lw(scratch1, FieldMemOperand(scratch1, offset)); |
| 690 | } |
| 691 | |
| 692 | // Store the value into the storage. |
| 693 | Label do_store, heap_number; |
| 694 | __ JumpIfNotSmi(value_reg, &heap_number); |
| 695 | __ SmiUntag(scratch2, value_reg); |
| 696 | __ mtc1(scratch2, f6); |
| 697 | __ cvt_d_w(f4, f6); |
| 698 | __ jmp(&do_store); |
| 699 | |
| 700 | __ bind(&heap_number); |
| 701 | __ CheckMap(value_reg, scratch2, Heap::kHeapNumberMapRootIndex, |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 702 | miss_label, DONT_DO_SMI_CHECK); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame^] | 703 | __ ldc1(f4, FieldMemOperand(value_reg, HeapNumber::kValueOffset)); |
| 704 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 705 | __ bind(&do_store); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame^] | 706 | __ sdc1(f4, FieldMemOperand(scratch1, HeapNumber::kValueOffset)); |
| 707 | // Return the value (register v0). |
| 708 | ASSERT(value_reg.is(a0)); |
| 709 | __ mov(v0, a0); |
| 710 | __ Ret(); |
| 711 | return; |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 712 | } |
| 713 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 714 | // TODO(verwaest): Share this code as a code stub. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 715 | if (index < 0) { |
| 716 | // Set the property straight into the object. |
| 717 | int offset = object->map()->instance_size() + (index * kPointerSize); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 718 | __ sw(value_reg, FieldMemOperand(receiver_reg, offset)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 719 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 720 | if (!FLAG_track_fields || !representation.IsSmi()) { |
| 721 | // Skip updating write barrier if storing a smi. |
| 722 | __ JumpIfSmi(value_reg, &exit); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 723 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 724 | // Update the write barrier for the array address. |
| 725 | // Pass the now unused name_reg as a scratch register. |
| 726 | __ mov(name_reg, value_reg); |
| 727 | __ RecordWriteField(receiver_reg, |
| 728 | offset, |
| 729 | name_reg, |
| 730 | scratch1, |
| 731 | kRAHasNotBeenSaved, |
| 732 | kDontSaveFPRegs); |
| 733 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 734 | } else { |
| 735 | // Write to the properties array. |
| 736 | int offset = index * kPointerSize + FixedArray::kHeaderSize; |
| 737 | // Get the properties array. |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 738 | __ lw(scratch1, |
| 739 | FieldMemOperand(receiver_reg, JSObject::kPropertiesOffset)); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 740 | __ sw(value_reg, FieldMemOperand(scratch1, offset)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 741 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 742 | if (!FLAG_track_fields || !representation.IsSmi()) { |
| 743 | // Skip updating write barrier if storing a smi. |
| 744 | __ JumpIfSmi(value_reg, &exit); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 745 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 746 | // Update the write barrier for the array address. |
| 747 | // Ok to clobber receiver_reg and name_reg, since we return. |
| 748 | __ mov(name_reg, value_reg); |
| 749 | __ RecordWriteField(scratch1, |
| 750 | offset, |
| 751 | name_reg, |
| 752 | receiver_reg, |
| 753 | kRAHasNotBeenSaved, |
| 754 | kDontSaveFPRegs); |
| 755 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 756 | } |
| 757 | |
| 758 | // Return the value (register v0). |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 759 | ASSERT(value_reg.is(a0)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 760 | __ bind(&exit); |
| 761 | __ mov(v0, a0); |
| 762 | __ Ret(); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 763 | } |
| 764 | |
| 765 | |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 766 | void BaseStoreStubCompiler::GenerateRestoreName(MacroAssembler* masm, |
| 767 | Label* label, |
| 768 | Handle<Name> name) { |
| 769 | if (!label->is_unused()) { |
| 770 | __ bind(label); |
| 771 | __ li(this->name(), Operand(name)); |
| 772 | } |
mstarzinger@chromium.org | 068ea0a | 2013-01-30 09:39:44 +0000 | [diff] [blame] | 773 | } |
| 774 | |
| 775 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 776 | static void GenerateCallFunction(MacroAssembler* masm, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 777 | Handle<Object> object, |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 778 | const ParameterCount& arguments, |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 779 | Label* miss, |
| 780 | Code::ExtraICState extra_ic_state) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 781 | // ----------- S t a t e ------------- |
| 782 | // -- a0: receiver |
| 783 | // -- a1: function to call |
| 784 | // ----------------------------------- |
| 785 | // Check that the function really is a function. |
| 786 | __ JumpIfSmi(a1, miss); |
| 787 | __ GetObjectType(a1, a3, a3); |
| 788 | __ Branch(miss, ne, a3, Operand(JS_FUNCTION_TYPE)); |
| 789 | |
| 790 | // Patch the receiver on the stack with the global proxy if |
| 791 | // necessary. |
| 792 | if (object->IsGlobalObject()) { |
| 793 | __ lw(a3, FieldMemOperand(a0, GlobalObject::kGlobalReceiverOffset)); |
| 794 | __ sw(a3, MemOperand(sp, arguments.immediate() * kPointerSize)); |
| 795 | } |
| 796 | |
| 797 | // Invoke the function. |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 798 | CallKind call_kind = CallICBase::Contextual::decode(extra_ic_state) |
| 799 | ? CALL_AS_FUNCTION |
| 800 | : CALL_AS_METHOD; |
| 801 | __ InvokeFunction(a1, arguments, JUMP_FUNCTION, NullCallWrapper(), call_kind); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 802 | } |
| 803 | |
| 804 | |
| 805 | static void PushInterceptorArguments(MacroAssembler* masm, |
| 806 | Register receiver, |
| 807 | Register holder, |
| 808 | Register name, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 809 | Handle<JSObject> holder_obj) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 810 | __ push(name); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 811 | Handle<InterceptorInfo> interceptor(holder_obj->GetNamedInterceptor()); |
| 812 | ASSERT(!masm->isolate()->heap()->InNewSpace(*interceptor)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 813 | Register scratch = name; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 814 | __ li(scratch, Operand(interceptor)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 815 | __ Push(scratch, receiver, holder); |
| 816 | __ lw(scratch, FieldMemOperand(scratch, InterceptorInfo::kDataOffset)); |
| 817 | __ push(scratch); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 818 | __ li(scratch, Operand(ExternalReference::isolate_address(masm->isolate()))); |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 819 | __ push(scratch); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 820 | } |
| 821 | |
| 822 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 823 | static void CompileCallLoadPropertyWithInterceptor( |
| 824 | MacroAssembler* masm, |
| 825 | Register receiver, |
| 826 | Register holder, |
| 827 | Register name, |
| 828 | Handle<JSObject> holder_obj) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 829 | PushInterceptorArguments(masm, receiver, holder, name, holder_obj); |
| 830 | |
| 831 | ExternalReference ref = |
| 832 | ExternalReference(IC_Utility(IC::kLoadPropertyWithInterceptorOnly), |
| 833 | masm->isolate()); |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 834 | __ PrepareCEntryArgs(6); |
ulan@chromium.org | 6ff6514 | 2012-03-21 09:52:17 +0000 | [diff] [blame] | 835 | __ PrepareCEntryFunction(ref); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 836 | |
| 837 | CEntryStub stub(1); |
| 838 | __ CallStub(&stub); |
| 839 | } |
| 840 | |
| 841 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 842 | static const int kFastApiCallArguments = 4; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 843 | |
| 844 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 845 | // Reserves space for the extra arguments to API function in the |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 846 | // caller's frame. |
| 847 | // |
| 848 | // These arguments are set by CheckPrototypes and GenerateFastApiDirectCall. |
| 849 | static void ReserveSpaceForFastApiCall(MacroAssembler* masm, |
| 850 | Register scratch) { |
| 851 | ASSERT(Smi::FromInt(0) == 0); |
| 852 | for (int i = 0; i < kFastApiCallArguments; i++) { |
| 853 | __ push(zero_reg); |
| 854 | } |
| 855 | } |
| 856 | |
| 857 | |
| 858 | // Undoes the effects of ReserveSpaceForFastApiCall. |
| 859 | static void FreeSpaceForFastApiCall(MacroAssembler* masm) { |
| 860 | __ Drop(kFastApiCallArguments); |
| 861 | } |
| 862 | |
| 863 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 864 | static void GenerateFastApiDirectCall(MacroAssembler* masm, |
| 865 | const CallOptimization& optimization, |
| 866 | int argc) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 867 | // ----------- S t a t e ------------- |
| 868 | // -- sp[0] : holder (set by CheckPrototypes) |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 869 | // -- sp[4] : callee JS function |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 870 | // -- sp[8] : call data |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 871 | // -- sp[12] : isolate |
| 872 | // -- sp[16] : last JS argument |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 873 | // -- ... |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 874 | // -- sp[(argc + 3) * 4] : first JS argument |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 875 | // -- sp[(argc + 4) * 4] : receiver |
| 876 | // ----------------------------------- |
| 877 | // Get the function and setup the context. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 878 | Handle<JSFunction> function = optimization.constant_function(); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 879 | __ LoadHeapObject(t1, function); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 880 | __ lw(cp, FieldMemOperand(t1, JSFunction::kContextOffset)); |
| 881 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 882 | // Pass the additional arguments. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 883 | Handle<CallHandlerInfo> api_call_info = optimization.api_call_info(); |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 884 | Handle<Object> call_data(api_call_info->data(), masm->isolate()); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 885 | if (masm->isolate()->heap()->InNewSpace(*call_data)) { |
| 886 | __ li(a0, api_call_info); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 887 | __ lw(t2, FieldMemOperand(a0, CallHandlerInfo::kDataOffset)); |
| 888 | } else { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 889 | __ li(t2, call_data); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 890 | } |
| 891 | |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 892 | __ li(t3, Operand(ExternalReference::isolate_address(masm->isolate()))); |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 893 | // Store JS function, call data and isolate. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 894 | __ sw(t1, MemOperand(sp, 1 * kPointerSize)); |
| 895 | __ sw(t2, MemOperand(sp, 2 * kPointerSize)); |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 896 | __ sw(t3, MemOperand(sp, 3 * kPointerSize)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 897 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 898 | // Prepare arguments. |
| 899 | __ Addu(a2, sp, Operand(3 * kPointerSize)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 900 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 901 | // Allocate the v8::Arguments structure in the arguments' space since |
| 902 | // it's not controlled by GC. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 903 | const int kApiStackSpace = 4; |
| 904 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 905 | FrameScope frame_scope(masm, StackFrame::MANUAL); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 906 | __ EnterExitFrame(false, kApiStackSpace); |
| 907 | |
| 908 | // NOTE: the O32 abi requires a0 to hold a special pointer when returning a |
| 909 | // struct from the function (which is currently the case). This means we pass |
| 910 | // the first argument in a1 instead of a0. TryCallApiFunctionAndReturn |
| 911 | // will handle setting up a0. |
| 912 | |
| 913 | // a1 = v8::Arguments& |
| 914 | // Arguments is built at sp + 1 (sp is a reserved spot for ra). |
| 915 | __ Addu(a1, sp, kPointerSize); |
| 916 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 917 | // v8::Arguments::implicit_args_ |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 918 | __ sw(a2, MemOperand(a1, 0 * kPointerSize)); |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 919 | // v8::Arguments::values_ |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 920 | __ Addu(t0, a2, Operand(argc * kPointerSize)); |
| 921 | __ sw(t0, MemOperand(a1, 1 * kPointerSize)); |
| 922 | // v8::Arguments::length_ = argc |
| 923 | __ li(t0, Operand(argc)); |
| 924 | __ sw(t0, MemOperand(a1, 2 * kPointerSize)); |
| 925 | // v8::Arguments::is_construct_call = 0 |
| 926 | __ sw(zero_reg, MemOperand(a1, 3 * kPointerSize)); |
| 927 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 928 | const int kStackUnwindSpace = argc + kFastApiCallArguments + 1; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 929 | Address function_address = v8::ToCData<Address>(api_call_info->callback()); |
| 930 | ApiFunction fun(function_address); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 931 | ExternalReference ref = |
| 932 | ExternalReference(&fun, |
| 933 | ExternalReference::DIRECT_API_CALL, |
| 934 | masm->isolate()); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 935 | AllowExternalCallThatCantCauseGC scope(masm); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 936 | __ CallApiFunctionAndReturn(ref, kStackUnwindSpace); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 937 | } |
| 938 | |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 939 | class CallInterceptorCompiler BASE_EMBEDDED { |
| 940 | public: |
| 941 | CallInterceptorCompiler(StubCompiler* stub_compiler, |
| 942 | const ParameterCount& arguments, |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 943 | Register name, |
| 944 | Code::ExtraICState extra_ic_state) |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 945 | : stub_compiler_(stub_compiler), |
| 946 | arguments_(arguments), |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 947 | name_(name), |
| 948 | extra_ic_state_(extra_ic_state) {} |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 949 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 950 | void Compile(MacroAssembler* masm, |
| 951 | Handle<JSObject> object, |
| 952 | Handle<JSObject> holder, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 953 | Handle<Name> name, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 954 | LookupResult* lookup, |
| 955 | Register receiver, |
| 956 | Register scratch1, |
| 957 | Register scratch2, |
| 958 | Register scratch3, |
| 959 | Label* miss) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 960 | ASSERT(holder->HasNamedInterceptor()); |
| 961 | ASSERT(!holder->GetNamedInterceptor()->getter()->IsUndefined()); |
| 962 | |
| 963 | // Check that the receiver isn't a smi. |
| 964 | __ JumpIfSmi(receiver, miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 965 | CallOptimization optimization(lookup); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 966 | if (optimization.is_constant_call()) { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 967 | CompileCacheable(masm, object, receiver, scratch1, scratch2, scratch3, |
| 968 | holder, lookup, name, optimization, miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 969 | } else { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 970 | CompileRegular(masm, object, receiver, scratch1, scratch2, scratch3, |
| 971 | name, holder, miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 972 | } |
| 973 | } |
| 974 | |
| 975 | private: |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 976 | void CompileCacheable(MacroAssembler* masm, |
| 977 | Handle<JSObject> object, |
| 978 | Register receiver, |
| 979 | Register scratch1, |
| 980 | Register scratch2, |
| 981 | Register scratch3, |
| 982 | Handle<JSObject> interceptor_holder, |
| 983 | LookupResult* lookup, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 984 | Handle<Name> name, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 985 | const CallOptimization& optimization, |
| 986 | Label* miss_label) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 987 | ASSERT(optimization.is_constant_call()); |
| 988 | ASSERT(!lookup->holder()->IsGlobalObject()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 989 | Counters* counters = masm->isolate()->counters(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 990 | int depth1 = kInvalidProtoDepth; |
| 991 | int depth2 = kInvalidProtoDepth; |
| 992 | bool can_do_fast_api_call = false; |
| 993 | if (optimization.is_simple_api_call() && |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 994 | !lookup->holder()->IsGlobalObject()) { |
| 995 | depth1 = optimization.GetPrototypeDepthOfExpectedType( |
| 996 | object, interceptor_holder); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 997 | if (depth1 == kInvalidProtoDepth) { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 998 | depth2 = optimization.GetPrototypeDepthOfExpectedType( |
| 999 | interceptor_holder, Handle<JSObject>(lookup->holder())); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1000 | } |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1001 | can_do_fast_api_call = |
| 1002 | depth1 != kInvalidProtoDepth || depth2 != kInvalidProtoDepth; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1003 | } |
| 1004 | |
| 1005 | __ IncrementCounter(counters->call_const_interceptor(), 1, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1006 | scratch1, scratch2); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1007 | |
| 1008 | if (can_do_fast_api_call) { |
| 1009 | __ IncrementCounter(counters->call_const_interceptor_fast_api(), 1, |
| 1010 | scratch1, scratch2); |
| 1011 | ReserveSpaceForFastApiCall(masm, scratch1); |
| 1012 | } |
| 1013 | |
| 1014 | // Check that the maps from receiver to interceptor's holder |
| 1015 | // haven't changed and thus we can invoke interceptor. |
| 1016 | Label miss_cleanup; |
| 1017 | Label* miss = can_do_fast_api_call ? &miss_cleanup : miss_label; |
| 1018 | Register holder = |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1019 | stub_compiler_->CheckPrototypes(object, receiver, interceptor_holder, |
| 1020 | scratch1, scratch2, scratch3, |
| 1021 | name, depth1, miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1022 | |
| 1023 | // Invoke an interceptor and if it provides a value, |
| 1024 | // branch to |regular_invoke|. |
| 1025 | Label regular_invoke; |
| 1026 | LoadWithInterceptor(masm, receiver, holder, interceptor_holder, scratch2, |
| 1027 | ®ular_invoke); |
| 1028 | |
| 1029 | // Interceptor returned nothing for this property. Try to use cached |
| 1030 | // constant function. |
| 1031 | |
| 1032 | // Check that the maps from interceptor's holder to constant function's |
| 1033 | // holder haven't changed and thus we can use cached constant function. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1034 | if (*interceptor_holder != lookup->holder()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1035 | stub_compiler_->CheckPrototypes(interceptor_holder, receiver, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1036 | Handle<JSObject>(lookup->holder()), |
| 1037 | scratch1, scratch2, scratch3, |
| 1038 | name, depth2, miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1039 | } else { |
| 1040 | // CheckPrototypes has a side effect of fetching a 'holder' |
| 1041 | // for API (object which is instanceof for the signature). It's |
| 1042 | // safe to omit it here, as if present, it should be fetched |
| 1043 | // by the previous CheckPrototypes. |
| 1044 | ASSERT(depth2 == kInvalidProtoDepth); |
| 1045 | } |
| 1046 | |
| 1047 | // Invoke function. |
| 1048 | if (can_do_fast_api_call) { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1049 | GenerateFastApiDirectCall(masm, optimization, arguments_.immediate()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1050 | } else { |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 1051 | CallKind call_kind = CallICBase::Contextual::decode(extra_ic_state_) |
| 1052 | ? CALL_AS_FUNCTION |
| 1053 | : CALL_AS_METHOD; |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 1054 | Handle<JSFunction> function = optimization.constant_function(); |
| 1055 | ParameterCount expected(function); |
| 1056 | __ InvokeFunction(function, expected, arguments_, |
jkummerow@chromium.org | 05ed9dd | 2012-01-23 14:42:48 +0000 | [diff] [blame] | 1057 | JUMP_FUNCTION, NullCallWrapper(), call_kind); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1058 | } |
| 1059 | |
| 1060 | // Deferred code for fast API call case---clean preallocated space. |
| 1061 | if (can_do_fast_api_call) { |
| 1062 | __ bind(&miss_cleanup); |
| 1063 | FreeSpaceForFastApiCall(masm); |
| 1064 | __ Branch(miss_label); |
| 1065 | } |
| 1066 | |
| 1067 | // Invoke a regular function. |
| 1068 | __ bind(®ular_invoke); |
| 1069 | if (can_do_fast_api_call) { |
| 1070 | FreeSpaceForFastApiCall(masm); |
| 1071 | } |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 1072 | } |
| 1073 | |
| 1074 | void CompileRegular(MacroAssembler* masm, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1075 | Handle<JSObject> object, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 1076 | Register receiver, |
| 1077 | Register scratch1, |
| 1078 | Register scratch2, |
| 1079 | Register scratch3, |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 1080 | Handle<Name> name, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1081 | Handle<JSObject> interceptor_holder, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 1082 | Label* miss_label) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1083 | Register holder = |
| 1084 | stub_compiler_->CheckPrototypes(object, receiver, interceptor_holder, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1085 | scratch1, scratch2, scratch3, |
| 1086 | name, miss_label); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1087 | |
| 1088 | // Call a runtime function to load the interceptor property. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1089 | FrameScope scope(masm, StackFrame::INTERNAL); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1090 | // Save the name_ register across the call. |
| 1091 | __ push(name_); |
| 1092 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1093 | PushInterceptorArguments(masm, receiver, holder, name_, interceptor_holder); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1094 | |
| 1095 | __ CallExternalReference( |
| 1096 | ExternalReference( |
| 1097 | IC_Utility(IC::kLoadPropertyWithInterceptorForCall), |
| 1098 | masm->isolate()), |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1099 | 6); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1100 | // Restore the name_ register. |
| 1101 | __ pop(name_); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1102 | // Leave the internal frame. |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 1103 | } |
| 1104 | |
| 1105 | void LoadWithInterceptor(MacroAssembler* masm, |
| 1106 | Register receiver, |
| 1107 | Register holder, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1108 | Handle<JSObject> holder_obj, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 1109 | Register scratch, |
| 1110 | Label* interceptor_succeeded) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1111 | { |
| 1112 | FrameScope scope(masm, StackFrame::INTERNAL); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1113 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1114 | __ Push(holder, name_); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1115 | CompileCallLoadPropertyWithInterceptor(masm, |
| 1116 | receiver, |
| 1117 | holder, |
| 1118 | name_, |
| 1119 | holder_obj); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1120 | __ pop(name_); // Restore the name. |
| 1121 | __ pop(receiver); // Restore the holder. |
| 1122 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1123 | // If interceptor returns no-result sentinel, call the constant function. |
| 1124 | __ LoadRoot(scratch, Heap::kNoInterceptorResultSentinelRootIndex); |
| 1125 | __ Branch(interceptor_succeeded, ne, v0, Operand(scratch)); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 1126 | } |
| 1127 | |
| 1128 | StubCompiler* stub_compiler_; |
| 1129 | const ParameterCount& arguments_; |
| 1130 | Register name_; |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 1131 | Code::ExtraICState extra_ic_state_; |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 1132 | }; |
| 1133 | |
| 1134 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1135 | // Calls GenerateCheckPropertyCell for each global object in the prototype chain |
| 1136 | // from object to (but not including) holder. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1137 | static void GenerateCheckPropertyCells(MacroAssembler* masm, |
| 1138 | Handle<JSObject> object, |
| 1139 | Handle<JSObject> holder, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1140 | Handle<Name> name, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1141 | Register scratch, |
| 1142 | Label* miss) { |
| 1143 | Handle<JSObject> current = object; |
| 1144 | while (!current.is_identical_to(holder)) { |
| 1145 | if (current->IsGlobalObject()) { |
| 1146 | GenerateCheckPropertyCell(masm, |
| 1147 | Handle<GlobalObject>::cast(current), |
| 1148 | name, |
| 1149 | scratch, |
| 1150 | miss); |
| 1151 | } |
| 1152 | current = Handle<JSObject>(JSObject::cast(current->GetPrototype())); |
| 1153 | } |
| 1154 | } |
| 1155 | |
| 1156 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1157 | // Convert and store int passed in register ival to IEEE 754 single precision |
| 1158 | // floating point value at memory location (dst + 4 * wordoffset) |
| 1159 | // If FPU is available use it for conversion. |
| 1160 | static void StoreIntAsFloat(MacroAssembler* masm, |
| 1161 | Register dst, |
| 1162 | Register wordoffset, |
| 1163 | Register ival, |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 1164 | Register scratch1) { |
| 1165 | __ mtc1(ival, f0); |
| 1166 | __ cvt_s_w(f0, f0); |
| 1167 | __ sll(scratch1, wordoffset, 2); |
| 1168 | __ addu(scratch1, dst, scratch1); |
| 1169 | __ swc1(f0, MemOperand(scratch1, 0)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1170 | } |
| 1171 | |
| 1172 | |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 1173 | void StubCompiler::GenerateTailCall(MacroAssembler* masm, Handle<Code> code) { |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1174 | __ Jump(code, RelocInfo::CODE_TARGET); |
| 1175 | } |
| 1176 | |
| 1177 | |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 1178 | #undef __ |
| 1179 | #define __ ACCESS_MASM(masm()) |
| 1180 | |
| 1181 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1182 | Register StubCompiler::CheckPrototypes(Handle<JSObject> object, |
| 1183 | Register object_reg, |
| 1184 | Handle<JSObject> holder, |
| 1185 | Register holder_reg, |
| 1186 | Register scratch1, |
| 1187 | Register scratch2, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1188 | Handle<Name> name, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1189 | int save_at_depth, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1190 | Label* miss, |
| 1191 | PrototypeCheckType check) { |
| 1192 | Handle<JSObject> first = object; |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1193 | // Make sure there's no overlap between holder and object registers. |
| 1194 | ASSERT(!scratch1.is(object_reg) && !scratch1.is(holder_reg)); |
| 1195 | ASSERT(!scratch2.is(object_reg) && !scratch2.is(holder_reg) |
| 1196 | && !scratch2.is(scratch1)); |
| 1197 | |
| 1198 | // Keep track of the current object in register reg. |
| 1199 | Register reg = object_reg; |
| 1200 | int depth = 0; |
| 1201 | |
| 1202 | if (save_at_depth == depth) { |
| 1203 | __ sw(reg, MemOperand(sp)); |
| 1204 | } |
| 1205 | |
| 1206 | // Check the maps in the prototype chain. |
| 1207 | // Traverse the prototype chain from the object and do map checks. |
| 1208 | Handle<JSObject> current = object; |
| 1209 | while (!current.is_identical_to(holder)) { |
| 1210 | ++depth; |
| 1211 | |
| 1212 | // Only global objects and objects that do not require access |
| 1213 | // checks are allowed in stubs. |
| 1214 | ASSERT(current->IsJSGlobalProxy() || !current->IsAccessCheckNeeded()); |
| 1215 | |
| 1216 | Handle<JSObject> prototype(JSObject::cast(current->GetPrototype())); |
| 1217 | if (!current->HasFastProperties() && |
| 1218 | !current->IsJSGlobalObject() && |
| 1219 | !current->IsJSGlobalProxy()) { |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1220 | if (!name->IsUniqueName()) { |
| 1221 | ASSERT(name->IsString()); |
| 1222 | name = factory()->InternalizeString(Handle<String>::cast(name)); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1223 | } |
| 1224 | ASSERT(current->property_dictionary()->FindEntry(*name) == |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1225 | NameDictionary::kNotFound); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1226 | |
| 1227 | GenerateDictionaryNegativeLookup(masm(), miss, reg, name, |
| 1228 | scratch1, scratch2); |
| 1229 | |
| 1230 | __ lw(scratch1, FieldMemOperand(reg, HeapObject::kMapOffset)); |
| 1231 | reg = holder_reg; // From now on the object will be in holder_reg. |
| 1232 | __ lw(reg, FieldMemOperand(scratch1, Map::kPrototypeOffset)); |
| 1233 | } else { |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1234 | Register map_reg = scratch1; |
| 1235 | if (!current.is_identical_to(first) || check == CHECK_ALL_MAPS) { |
| 1236 | Handle<Map> current_map(current->map()); |
| 1237 | // CheckMap implicitly loads the map of |reg| into |map_reg|. |
| 1238 | __ CheckMap(reg, map_reg, current_map, miss, DONT_DO_SMI_CHECK, |
| 1239 | ALLOW_ELEMENT_TRANSITION_MAPS); |
| 1240 | } else { |
| 1241 | __ lw(map_reg, FieldMemOperand(reg, HeapObject::kMapOffset)); |
| 1242 | } |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1243 | // Check access rights to the global object. This has to happen after |
| 1244 | // the map check so that we know that the object is actually a global |
| 1245 | // object. |
| 1246 | if (current->IsJSGlobalProxy()) { |
| 1247 | __ CheckAccessGlobalProxy(reg, scratch2, miss); |
| 1248 | } |
| 1249 | reg = holder_reg; // From now on the object will be in holder_reg. |
| 1250 | |
| 1251 | if (heap()->InNewSpace(*prototype)) { |
| 1252 | // The prototype is in new space; we cannot store a reference to it |
| 1253 | // in the code. Load it from the map. |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1254 | __ lw(reg, FieldMemOperand(map_reg, Map::kPrototypeOffset)); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1255 | } else { |
| 1256 | // The prototype is in old space; load it directly. |
| 1257 | __ li(reg, Operand(prototype)); |
| 1258 | } |
| 1259 | } |
| 1260 | |
| 1261 | if (save_at_depth == depth) { |
| 1262 | __ sw(reg, MemOperand(sp)); |
| 1263 | } |
| 1264 | |
| 1265 | // Go to the next object in the prototype chain. |
| 1266 | current = prototype; |
| 1267 | } |
| 1268 | |
| 1269 | // Log the check depth. |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 1270 | LOG(isolate(), IntEvent("check-maps-depth", depth + 1)); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1271 | |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1272 | if (!holder.is_identical_to(first) || check == CHECK_ALL_MAPS) { |
| 1273 | // Check the holder map. |
| 1274 | __ CheckMap(reg, scratch1, Handle<Map>(holder->map()), miss, |
| 1275 | DONT_DO_SMI_CHECK, ALLOW_ELEMENT_TRANSITION_MAPS); |
| 1276 | } |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1277 | |
| 1278 | // Perform security check for access to the global object. |
| 1279 | ASSERT(holder->IsJSGlobalProxy() || !holder->IsAccessCheckNeeded()); |
| 1280 | if (holder->IsJSGlobalProxy()) { |
| 1281 | __ CheckAccessGlobalProxy(reg, scratch1, miss); |
| 1282 | } |
| 1283 | |
| 1284 | // If we've skipped any global objects, it's not enough to verify that |
| 1285 | // their maps haven't changed. We also need to check that the property |
| 1286 | // cell for the property is still empty. |
| 1287 | GenerateCheckPropertyCells(masm(), object, holder, name, scratch1, miss); |
| 1288 | |
| 1289 | // Return the register containing the holder. |
| 1290 | return reg; |
| 1291 | } |
| 1292 | |
| 1293 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1294 | void BaseLoadStubCompiler::HandlerFrontendFooter(Label* success, |
| 1295 | Label* miss) { |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1296 | if (!miss->is_unused()) { |
| 1297 | __ Branch(success); |
| 1298 | __ bind(miss); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 1299 | TailCallBuiltin(masm(), MissBuiltin(kind())); |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1300 | } |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1301 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1302 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1303 | |
| 1304 | Register BaseLoadStubCompiler::CallbackHandlerFrontend( |
| 1305 | Handle<JSObject> object, |
| 1306 | Register object_reg, |
| 1307 | Handle<JSObject> holder, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1308 | Handle<Name> name, |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1309 | Label* success, |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1310 | Handle<ExecutableAccessorInfo> callback) { |
| 1311 | Label miss; |
| 1312 | |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1313 | Register reg = HandlerFrontendHeader(object, object_reg, holder, name, &miss); |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1314 | |
| 1315 | if (!holder->HasFastProperties() && !holder->IsJSGlobalObject()) { |
| 1316 | ASSERT(!reg.is(scratch2())); |
| 1317 | ASSERT(!reg.is(scratch3())); |
| 1318 | ASSERT(!reg.is(scratch4())); |
| 1319 | |
| 1320 | // Load the properties dictionary. |
| 1321 | Register dictionary = scratch4(); |
| 1322 | __ lw(dictionary, FieldMemOperand(reg, JSObject::kPropertiesOffset)); |
| 1323 | |
| 1324 | // Probe the dictionary. |
| 1325 | Label probe_done; |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1326 | NameDictionaryLookupStub::GeneratePositiveLookup(masm(), |
| 1327 | &miss, |
| 1328 | &probe_done, |
| 1329 | dictionary, |
| 1330 | this->name(), |
| 1331 | scratch2(), |
| 1332 | scratch3()); |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1333 | __ bind(&probe_done); |
| 1334 | |
| 1335 | // If probing finds an entry in the dictionary, scratch3 contains the |
| 1336 | // pointer into the dictionary. Check that the value is the callback. |
| 1337 | Register pointer = scratch3(); |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1338 | const int kElementsStartOffset = NameDictionary::kHeaderSize + |
| 1339 | NameDictionary::kElementsStartIndex * kPointerSize; |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1340 | const int kValueOffset = kElementsStartOffset + kPointerSize; |
| 1341 | __ lw(scratch2(), FieldMemOperand(pointer, kValueOffset)); |
| 1342 | __ Branch(&miss, ne, scratch2(), Operand(callback)); |
| 1343 | } |
| 1344 | |
| 1345 | HandlerFrontendFooter(success, &miss); |
| 1346 | return reg; |
| 1347 | } |
| 1348 | |
| 1349 | |
| 1350 | void BaseLoadStubCompiler::NonexistentHandlerFrontend( |
| 1351 | Handle<JSObject> object, |
| 1352 | Handle<JSObject> last, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1353 | Handle<Name> name, |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1354 | Label* success, |
| 1355 | Handle<GlobalObject> global) { |
| 1356 | Label miss; |
| 1357 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 1358 | HandlerFrontendHeader(object, receiver(), last, name, &miss); |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1359 | |
| 1360 | // If the last object in the prototype chain is a global object, |
| 1361 | // check that the global property cell is empty. |
| 1362 | if (!global.is_null()) { |
| 1363 | GenerateCheckPropertyCell(masm(), global, name, scratch2(), &miss); |
| 1364 | } |
| 1365 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1366 | HandlerFrontendFooter(success, &miss); |
| 1367 | } |
| 1368 | |
| 1369 | |
| 1370 | void BaseLoadStubCompiler::GenerateLoadField(Register reg, |
| 1371 | Handle<JSObject> holder, |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame^] | 1372 | PropertyIndex field, |
| 1373 | Representation representation) { |
| 1374 | if (!reg.is(receiver())) __ mov(receiver(), reg); |
| 1375 | if (kind() == Code::LOAD_IC) { |
| 1376 | LoadFieldStub stub(field.is_inobject(holder), |
| 1377 | field.translate(holder), |
| 1378 | representation); |
| 1379 | GenerateTailCall(masm(), stub.GetCode(isolate())); |
| 1380 | } else { |
| 1381 | KeyedLoadFieldStub stub(field.is_inobject(holder), |
| 1382 | field.translate(holder), |
| 1383 | representation); |
| 1384 | GenerateTailCall(masm(), stub.GetCode(isolate())); |
| 1385 | } |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1386 | } |
| 1387 | |
| 1388 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1389 | void BaseLoadStubCompiler::GenerateLoadConstant(Handle<JSFunction> value) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1390 | // Return the constant value. |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 1391 | __ LoadHeapObject(v0, value); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1392 | __ Ret(); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1393 | } |
| 1394 | |
| 1395 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1396 | void BaseLoadStubCompiler::GenerateLoadCallback( |
| 1397 | Register reg, |
| 1398 | Handle<ExecutableAccessorInfo> callback) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1399 | // Build AccessorInfo::args_ list on the stack and push property name below |
| 1400 | // the exit frame to make GC aware of them and store pointers to them. |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1401 | __ push(receiver()); |
| 1402 | __ mov(scratch2(), sp); // scratch2 = AccessorInfo::args_ |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1403 | if (heap()->InNewSpace(callback->data())) { |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1404 | __ li(scratch3(), callback); |
| 1405 | __ lw(scratch3(), FieldMemOperand(scratch3(), |
| 1406 | ExecutableAccessorInfo::kDataOffset)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1407 | } else { |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 1408 | __ li(scratch3(), Handle<Object>(callback->data(), isolate())); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1409 | } |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1410 | __ Subu(sp, sp, 4 * kPointerSize); |
| 1411 | __ sw(reg, MemOperand(sp, 3 * kPointerSize)); |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1412 | __ sw(scratch3(), MemOperand(sp, 2 * kPointerSize)); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 1413 | __ li(scratch3(), |
| 1414 | Operand(ExternalReference::isolate_address(isolate()))); |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1415 | __ sw(scratch3(), MemOperand(sp, 1 * kPointerSize)); |
| 1416 | __ sw(name(), MemOperand(sp, 0 * kPointerSize)); |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1417 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1418 | __ mov(a2, scratch2()); // Saved in case scratch2 == a1. |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1419 | __ mov(a1, sp); // a1 (first argument - see note below) = Handle<Name> |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1420 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1421 | // NOTE: the O32 abi requires a0 to hold a special pointer when returning a |
| 1422 | // struct from the function (which is currently the case). This means we pass |
| 1423 | // the arguments in a1-a2 instead of a0-a1. TryCallApiFunctionAndReturn |
| 1424 | // will handle setting up a0. |
| 1425 | |
| 1426 | const int kApiStackSpace = 1; |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1427 | FrameScope frame_scope(masm(), StackFrame::MANUAL); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1428 | __ EnterExitFrame(false, kApiStackSpace); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1429 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1430 | // Create AccessorInfo instance on the stack above the exit frame with |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 1431 | // scratch2 (internal::Object** args_) as the data. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1432 | __ sw(a2, MemOperand(sp, kPointerSize)); |
| 1433 | // a2 (second argument - see note above) = AccessorInfo& |
| 1434 | __ Addu(a2, sp, kPointerSize); |
| 1435 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1436 | const int kStackUnwindSpace = 5; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1437 | Address getter_address = v8::ToCData<Address>(callback->getter()); |
| 1438 | ApiFunction fun(getter_address); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 1439 | ExternalReference ref = ExternalReference( |
| 1440 | &fun, ExternalReference::DIRECT_GETTER_CALL, isolate()); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1441 | __ CallApiFunctionAndReturn(ref, kStackUnwindSpace); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1442 | } |
| 1443 | |
| 1444 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1445 | void BaseLoadStubCompiler::GenerateLoadInterceptor( |
| 1446 | Register holder_reg, |
| 1447 | Handle<JSObject> object, |
| 1448 | Handle<JSObject> interceptor_holder, |
| 1449 | LookupResult* lookup, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1450 | Handle<Name> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1451 | ASSERT(interceptor_holder->HasNamedInterceptor()); |
| 1452 | ASSERT(!interceptor_holder->GetNamedInterceptor()->getter()->IsUndefined()); |
| 1453 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1454 | // So far the most popular follow ups for interceptor loads are FIELD |
| 1455 | // and CALLBACKS, so inline only them, other cases may be added |
| 1456 | // later. |
| 1457 | bool compile_followup_inline = false; |
jkummerow@chromium.org | 05ed9dd | 2012-01-23 14:42:48 +0000 | [diff] [blame] | 1458 | if (lookup->IsFound() && lookup->IsCacheable()) { |
yangguo@chromium.org | de0db00 | 2012-06-22 13:44:28 +0000 | [diff] [blame] | 1459 | if (lookup->IsField()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1460 | compile_followup_inline = true; |
| 1461 | } else if (lookup->type() == CALLBACKS && |
yangguo@chromium.org | c03a192 | 2013-02-19 13:55:47 +0000 | [diff] [blame] | 1462 | lookup->GetCallbackObject()->IsExecutableAccessorInfo()) { |
| 1463 | ExecutableAccessorInfo* callback = |
| 1464 | ExecutableAccessorInfo::cast(lookup->GetCallbackObject()); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 1465 | compile_followup_inline = callback->getter() != NULL && |
| 1466 | callback->IsCompatibleReceiver(*object); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1467 | } |
| 1468 | } |
| 1469 | |
| 1470 | if (compile_followup_inline) { |
| 1471 | // Compile the interceptor call, followed by inline code to load the |
| 1472 | // property from further up the prototype chain if the call fails. |
| 1473 | // Check that the maps haven't changed. |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1474 | ASSERT(holder_reg.is(receiver()) || holder_reg.is(scratch1())); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1475 | |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 1476 | // Preserve the receiver register explicitly whenever it is different from |
| 1477 | // the holder and it is needed should the interceptor return without any |
| 1478 | // result. The CALLBACKS case needs the receiver to be passed into C++ code, |
| 1479 | // the FIELD case might cause a miss during the prototype check. |
| 1480 | bool must_perfrom_prototype_check = *interceptor_holder != lookup->holder(); |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1481 | bool must_preserve_receiver_reg = !receiver().is(holder_reg) && |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 1482 | (lookup->type() == CALLBACKS || must_perfrom_prototype_check); |
| 1483 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1484 | // Save necessary data before invoking an interceptor. |
| 1485 | // Requires a frame to make GC aware of pushed pointers. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1486 | { |
| 1487 | FrameScope frame_scope(masm(), StackFrame::INTERNAL); |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 1488 | if (must_preserve_receiver_reg) { |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1489 | __ Push(receiver(), holder_reg, this->name()); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1490 | } else { |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1491 | __ Push(holder_reg, this->name()); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1492 | } |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1493 | // Invoke an interceptor. Note: map checks from receiver to |
| 1494 | // interceptor's holder has been compiled before (see a caller |
| 1495 | // of this method). |
| 1496 | CompileCallLoadPropertyWithInterceptor(masm(), |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1497 | receiver(), |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1498 | holder_reg, |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1499 | this->name(), |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1500 | interceptor_holder); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1501 | // Check if interceptor provided a value for property. If it's |
| 1502 | // the case, return immediately. |
| 1503 | Label interceptor_failed; |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1504 | __ LoadRoot(scratch1(), Heap::kNoInterceptorResultSentinelRootIndex); |
| 1505 | __ Branch(&interceptor_failed, eq, v0, Operand(scratch1())); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1506 | frame_scope.GenerateLeaveFrame(); |
| 1507 | __ Ret(); |
| 1508 | |
| 1509 | __ bind(&interceptor_failed); |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1510 | __ pop(this->name()); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1511 | __ pop(holder_reg); |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 1512 | if (must_preserve_receiver_reg) { |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1513 | __ pop(receiver()); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1514 | } |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1515 | // Leave the internal frame. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1516 | } |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1517 | GenerateLoadPostInterceptor(holder_reg, interceptor_holder, name, lookup); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1518 | } else { // !compile_followup_inline |
| 1519 | // Call the runtime system to load the interceptor. |
| 1520 | // Check that the maps haven't changed. |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1521 | PushInterceptorArguments(masm(), receiver(), holder_reg, |
| 1522 | this->name(), interceptor_holder); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1523 | |
| 1524 | ExternalReference ref = ExternalReference( |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 1525 | IC_Utility(IC::kLoadPropertyWithInterceptorForLoad), isolate()); |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1526 | __ TailCallExternalReference(ref, 6, 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1527 | } |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1528 | } |
| 1529 | |
| 1530 | |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1531 | void CallStubCompiler::GenerateNameCheck(Handle<Name> name, Label* miss) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1532 | if (kind_ == Code::KEYED_CALL_IC) { |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1533 | __ Branch(miss, ne, a2, Operand(name)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1534 | } |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1535 | } |
| 1536 | |
| 1537 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1538 | void CallStubCompiler::GenerateGlobalReceiverCheck(Handle<JSObject> object, |
| 1539 | Handle<JSObject> holder, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1540 | Handle<Name> name, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 1541 | Label* miss) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1542 | ASSERT(holder->IsGlobalObject()); |
| 1543 | |
| 1544 | // Get the number of arguments. |
| 1545 | const int argc = arguments().immediate(); |
| 1546 | |
| 1547 | // Get the receiver from the stack. |
| 1548 | __ lw(a0, MemOperand(sp, argc * kPointerSize)); |
| 1549 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1550 | // Check that the maps haven't changed. |
mstarzinger@chromium.org | 3233d2f | 2012-03-14 11:16:03 +0000 | [diff] [blame] | 1551 | __ JumpIfSmi(a0, miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1552 | CheckPrototypes(object, a0, holder, a3, a1, t0, name, miss); |
kmillikin@chromium.org | 5d8f0e6 | 2010-03-24 08:21:20 +0000 | [diff] [blame] | 1553 | } |
| 1554 | |
| 1555 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1556 | void CallStubCompiler::GenerateLoadFunctionFromCell( |
| 1557 | Handle<JSGlobalPropertyCell> cell, |
| 1558 | Handle<JSFunction> function, |
| 1559 | Label* miss) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1560 | // Get the value from the cell. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1561 | __ li(a3, Operand(cell)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1562 | __ lw(a1, FieldMemOperand(a3, JSGlobalPropertyCell::kValueOffset)); |
| 1563 | |
| 1564 | // Check that the cell contains the same function. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1565 | if (heap()->InNewSpace(*function)) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1566 | // We can't embed a pointer to a function in new space so we have |
| 1567 | // to verify that the shared function info is unchanged. This has |
| 1568 | // the nice side effect that multiple closures based on the same |
| 1569 | // function can all use this call IC. Before we load through the |
| 1570 | // function, we have to verify that it still is a function. |
| 1571 | __ JumpIfSmi(a1, miss); |
| 1572 | __ GetObjectType(a1, a3, a3); |
| 1573 | __ Branch(miss, ne, a3, Operand(JS_FUNCTION_TYPE)); |
| 1574 | |
| 1575 | // Check the shared function info. Make sure it hasn't changed. |
| 1576 | __ li(a3, Handle<SharedFunctionInfo>(function->shared())); |
| 1577 | __ lw(t0, FieldMemOperand(a1, JSFunction::kSharedFunctionInfoOffset)); |
| 1578 | __ Branch(miss, ne, t0, Operand(a3)); |
| 1579 | } else { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1580 | __ Branch(miss, ne, a1, Operand(function)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1581 | } |
kmillikin@chromium.org | 5d8f0e6 | 2010-03-24 08:21:20 +0000 | [diff] [blame] | 1582 | } |
| 1583 | |
| 1584 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1585 | void CallStubCompiler::GenerateMissBranch() { |
| 1586 | Handle<Code> code = |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 1587 | isolate()->stub_cache()->ComputeCallMiss(arguments().immediate(), |
| 1588 | kind_, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1589 | extra_state_); |
| 1590 | __ Jump(code, RelocInfo::CODE_TARGET); |
| 1591 | } |
| 1592 | |
| 1593 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1594 | Handle<Code> CallStubCompiler::CompileCallField(Handle<JSObject> object, |
| 1595 | Handle<JSObject> holder, |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 1596 | PropertyIndex index, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1597 | Handle<Name> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1598 | // ----------- S t a t e ------------- |
| 1599 | // -- a2 : name |
| 1600 | // -- ra : return address |
| 1601 | // ----------------------------------- |
| 1602 | Label miss; |
| 1603 | |
| 1604 | GenerateNameCheck(name, &miss); |
| 1605 | |
| 1606 | const int argc = arguments().immediate(); |
| 1607 | |
| 1608 | // Get the receiver of the function from the stack into a0. |
| 1609 | __ lw(a0, MemOperand(sp, argc * kPointerSize)); |
| 1610 | // Check that the receiver isn't a smi. |
| 1611 | __ JumpIfSmi(a0, &miss, t0); |
| 1612 | |
| 1613 | // Do the right check and compute the holder register. |
| 1614 | Register reg = CheckPrototypes(object, a0, holder, a1, a3, t0, name, &miss); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame^] | 1615 | GenerateFastPropertyLoad(masm(), a1, reg, index.is_inobject(holder), |
| 1616 | index.translate(holder), Representation::Tagged()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1617 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1618 | GenerateCallFunction(masm(), object, arguments(), &miss, extra_state_); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1619 | |
| 1620 | // Handle call cache miss. |
| 1621 | __ bind(&miss); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1622 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1623 | |
| 1624 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 1625 | return GetCode(Code::FIELD, name); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1626 | } |
| 1627 | |
| 1628 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1629 | Handle<Code> CallStubCompiler::CompileArrayPushCall( |
| 1630 | Handle<Object> object, |
| 1631 | Handle<JSObject> holder, |
| 1632 | Handle<JSGlobalPropertyCell> cell, |
| 1633 | Handle<JSFunction> function, |
| 1634 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1635 | // ----------- S t a t e ------------- |
| 1636 | // -- a2 : name |
| 1637 | // -- ra : return address |
| 1638 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero-based) |
| 1639 | // -- ... |
| 1640 | // -- sp[argc * 4] : receiver |
| 1641 | // ----------------------------------- |
| 1642 | |
| 1643 | // If object is not an array, bail out to regular call. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1644 | if (!object->IsJSArray() || !cell.is_null()) return Handle<Code>::null(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1645 | |
| 1646 | Label miss; |
| 1647 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1648 | GenerateNameCheck(name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1649 | |
| 1650 | Register receiver = a1; |
| 1651 | |
| 1652 | // Get the receiver from the stack. |
| 1653 | const int argc = arguments().immediate(); |
| 1654 | __ lw(receiver, MemOperand(sp, argc * kPointerSize)); |
| 1655 | |
| 1656 | // Check that the receiver isn't a smi. |
| 1657 | __ JumpIfSmi(receiver, &miss); |
| 1658 | |
| 1659 | // Check that the maps haven't changed. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1660 | CheckPrototypes(Handle<JSObject>::cast(object), receiver, holder, a3, v0, t0, |
| 1661 | name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1662 | |
| 1663 | if (argc == 0) { |
| 1664 | // Nothing to do, just return the length. |
| 1665 | __ lw(v0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1666 | __ Drop(argc + 1); |
| 1667 | __ Ret(); |
| 1668 | } else { |
| 1669 | Label call_builtin; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1670 | if (argc == 1) { // Otherwise fall through to call the builtin. |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1671 | Label attempt_to_grow_elements, with_write_barrier, check_double; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1672 | |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1673 | Register elements = t2; |
| 1674 | Register end_elements = t1; |
| 1675 | // Get the elements array of the object. |
| 1676 | __ lw(elements, FieldMemOperand(receiver, JSArray::kElementsOffset)); |
| 1677 | |
| 1678 | // Check that the elements are in fast mode and writable. |
| 1679 | __ CheckMap(elements, |
| 1680 | v0, |
| 1681 | Heap::kFixedArrayMapRootIndex, |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1682 | &check_double, |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1683 | DONT_DO_SMI_CHECK); |
| 1684 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1685 | // Get the array's length into v0 and calculate new length. |
| 1686 | __ lw(v0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1687 | STATIC_ASSERT(kSmiTagSize == 1); |
| 1688 | STATIC_ASSERT(kSmiTag == 0); |
| 1689 | __ Addu(v0, v0, Operand(Smi::FromInt(argc))); |
| 1690 | |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1691 | // Get the elements' length. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1692 | __ lw(t0, FieldMemOperand(elements, FixedArray::kLengthOffset)); |
| 1693 | |
| 1694 | // Check if we could survive without allocation. |
| 1695 | __ Branch(&attempt_to_grow_elements, gt, v0, Operand(t0)); |
| 1696 | |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 1697 | // Check if value is a smi. |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 1698 | __ lw(t0, MemOperand(sp, (argc - 1) * kPointerSize)); |
| 1699 | __ JumpIfNotSmi(t0, &with_write_barrier); |
| 1700 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1701 | // Save new length. |
| 1702 | __ sw(v0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1703 | |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1704 | // Store the value. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1705 | // We may need a register containing the address end_elements below, |
| 1706 | // so write back the value in end_elements. |
| 1707 | __ sll(end_elements, v0, kPointerSizeLog2 - kSmiTagSize); |
| 1708 | __ Addu(end_elements, elements, end_elements); |
| 1709 | const int kEndElementsOffset = |
| 1710 | FixedArray::kHeaderSize - kHeapObjectTag - argc * kPointerSize; |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1711 | __ Addu(end_elements, end_elements, kEndElementsOffset); |
| 1712 | __ sw(t0, MemOperand(end_elements)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1713 | |
| 1714 | // Check for a smi. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1715 | __ Drop(argc + 1); |
| 1716 | __ Ret(); |
| 1717 | |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1718 | __ bind(&check_double); |
| 1719 | |
| 1720 | // Check that the elements are in fast mode and writable. |
| 1721 | __ CheckMap(elements, |
| 1722 | a0, |
| 1723 | Heap::kFixedDoubleArrayMapRootIndex, |
| 1724 | &call_builtin, |
| 1725 | DONT_DO_SMI_CHECK); |
| 1726 | |
| 1727 | // Get the array's length into r0 and calculate new length. |
| 1728 | __ lw(a0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1729 | STATIC_ASSERT(kSmiTagSize == 1); |
| 1730 | STATIC_ASSERT(kSmiTag == 0); |
| 1731 | __ Addu(a0, a0, Operand(Smi::FromInt(argc))); |
| 1732 | |
| 1733 | // Get the elements' length. |
| 1734 | __ lw(t0, FieldMemOperand(elements, FixedArray::kLengthOffset)); |
| 1735 | |
| 1736 | // Check if we could survive without allocation. |
| 1737 | __ Branch(&call_builtin, gt, a0, Operand(t0)); |
| 1738 | |
| 1739 | __ lw(t0, MemOperand(sp, (argc - 1) * kPointerSize)); |
| 1740 | __ StoreNumberToDoubleElements( |
| 1741 | t0, a0, elements, a3, t1, a2, t5, |
| 1742 | &call_builtin, argc * kDoubleSize); |
| 1743 | |
| 1744 | // Save new length. |
| 1745 | __ sw(a0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1746 | |
| 1747 | // Check for a smi. |
| 1748 | __ Drop(argc + 1); |
| 1749 | __ Ret(); |
| 1750 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1751 | __ bind(&with_write_barrier); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 1752 | |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1753 | __ lw(a3, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
| 1754 | |
| 1755 | if (FLAG_smi_only_arrays && !FLAG_trace_elements_transitions) { |
| 1756 | Label fast_object, not_fast_object; |
| 1757 | __ CheckFastObjectElements(a3, t3, ¬_fast_object); |
| 1758 | __ jmp(&fast_object); |
| 1759 | // In case of fast smi-only, convert to fast object, otherwise bail out. |
| 1760 | __ bind(¬_fast_object); |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 1761 | __ CheckFastSmiElements(a3, t3, &call_builtin); |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1762 | |
| 1763 | __ lw(t3, FieldMemOperand(t0, HeapObject::kMapOffset)); |
| 1764 | __ LoadRoot(at, Heap::kHeapNumberMapRootIndex); |
| 1765 | __ Branch(&call_builtin, eq, t3, Operand(at)); |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1766 | // edx: receiver |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1767 | // a3: map |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 1768 | Label try_holey_map; |
| 1769 | __ LoadTransitionedArrayMapConditional(FAST_SMI_ELEMENTS, |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1770 | FAST_ELEMENTS, |
| 1771 | a3, |
| 1772 | t3, |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 1773 | &try_holey_map); |
| 1774 | __ mov(a2, receiver); |
| 1775 | ElementsTransitionGenerator:: |
yangguo@chromium.org | 28381b4 | 2013-01-21 14:39:38 +0000 | [diff] [blame] | 1776 | GenerateMapChangeElementsTransition(masm(), |
| 1777 | DONT_TRACK_ALLOCATION_SITE, |
| 1778 | NULL); |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 1779 | __ jmp(&fast_object); |
| 1780 | |
| 1781 | __ bind(&try_holey_map); |
| 1782 | __ LoadTransitionedArrayMapConditional(FAST_HOLEY_SMI_ELEMENTS, |
| 1783 | FAST_HOLEY_ELEMENTS, |
| 1784 | a3, |
| 1785 | t3, |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1786 | &call_builtin); |
| 1787 | __ mov(a2, receiver); |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 1788 | ElementsTransitionGenerator:: |
yangguo@chromium.org | 28381b4 | 2013-01-21 14:39:38 +0000 | [diff] [blame] | 1789 | GenerateMapChangeElementsTransition(masm(), |
| 1790 | DONT_TRACK_ALLOCATION_SITE, |
| 1791 | NULL); |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1792 | __ bind(&fast_object); |
| 1793 | } else { |
| 1794 | __ CheckFastObjectElements(a3, a3, &call_builtin); |
| 1795 | } |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 1796 | |
| 1797 | // Save new length. |
| 1798 | __ sw(v0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1799 | |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1800 | // Store the value. |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 1801 | // We may need a register containing the address end_elements below, |
| 1802 | // so write back the value in end_elements. |
| 1803 | __ sll(end_elements, v0, kPointerSizeLog2 - kSmiTagSize); |
| 1804 | __ Addu(end_elements, elements, end_elements); |
| 1805 | __ Addu(end_elements, end_elements, kEndElementsOffset); |
| 1806 | __ sw(t0, MemOperand(end_elements)); |
| 1807 | |
| 1808 | __ RecordWrite(elements, |
| 1809 | end_elements, |
| 1810 | t0, |
| 1811 | kRAHasNotBeenSaved, |
| 1812 | kDontSaveFPRegs, |
| 1813 | EMIT_REMEMBERED_SET, |
| 1814 | OMIT_SMI_CHECK); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1815 | __ Drop(argc + 1); |
| 1816 | __ Ret(); |
| 1817 | |
| 1818 | __ bind(&attempt_to_grow_elements); |
| 1819 | // v0: array's length + 1. |
| 1820 | // t0: elements' length. |
| 1821 | |
| 1822 | if (!FLAG_inline_new) { |
| 1823 | __ Branch(&call_builtin); |
| 1824 | } |
| 1825 | |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 1826 | __ lw(a2, MemOperand(sp, (argc - 1) * kPointerSize)); |
| 1827 | // Growing elements that are SMI-only requires special handling in case |
| 1828 | // the new element is non-Smi. For now, delegate to the builtin. |
| 1829 | Label no_fast_elements_check; |
| 1830 | __ JumpIfSmi(a2, &no_fast_elements_check); |
| 1831 | __ lw(t3, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
| 1832 | __ CheckFastObjectElements(t3, t3, &call_builtin); |
| 1833 | __ bind(&no_fast_elements_check); |
| 1834 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1835 | ExternalReference new_space_allocation_top = |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 1836 | ExternalReference::new_space_allocation_top_address(isolate()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1837 | ExternalReference new_space_allocation_limit = |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 1838 | ExternalReference::new_space_allocation_limit_address(isolate()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1839 | |
| 1840 | const int kAllocationDelta = 4; |
| 1841 | // Load top and check if it is the end of elements. |
| 1842 | __ sll(end_elements, v0, kPointerSizeLog2 - kSmiTagSize); |
| 1843 | __ Addu(end_elements, elements, end_elements); |
| 1844 | __ Addu(end_elements, end_elements, Operand(kEndElementsOffset)); |
| 1845 | __ li(t3, Operand(new_space_allocation_top)); |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1846 | __ lw(a3, MemOperand(t3)); |
| 1847 | __ Branch(&call_builtin, ne, end_elements, Operand(a3)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1848 | |
| 1849 | __ li(t5, Operand(new_space_allocation_limit)); |
| 1850 | __ lw(t5, MemOperand(t5)); |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1851 | __ Addu(a3, a3, Operand(kAllocationDelta * kPointerSize)); |
| 1852 | __ Branch(&call_builtin, hi, a3, Operand(t5)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1853 | |
| 1854 | // We fit and could grow elements. |
| 1855 | // Update new_space_allocation_top. |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1856 | __ sw(a3, MemOperand(t3)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1857 | // Push the argument. |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 1858 | __ sw(a2, MemOperand(end_elements)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1859 | // Fill the rest with holes. |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1860 | __ LoadRoot(a3, Heap::kTheHoleValueRootIndex); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1861 | for (int i = 1; i < kAllocationDelta; i++) { |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1862 | __ sw(a3, MemOperand(end_elements, i * kPointerSize)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1863 | } |
| 1864 | |
| 1865 | // Update elements' and array's sizes. |
| 1866 | __ sw(v0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1867 | __ Addu(t0, t0, Operand(Smi::FromInt(kAllocationDelta))); |
| 1868 | __ sw(t0, FieldMemOperand(elements, FixedArray::kLengthOffset)); |
| 1869 | |
| 1870 | // Elements are in new space, so write barrier is not required. |
| 1871 | __ Drop(argc + 1); |
| 1872 | __ Ret(); |
| 1873 | } |
| 1874 | __ bind(&call_builtin); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 1875 | __ TailCallExternalReference( |
| 1876 | ExternalReference(Builtins::c_ArrayPush, isolate()), argc + 1, 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1877 | } |
| 1878 | |
| 1879 | // Handle call cache miss. |
| 1880 | __ bind(&miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1881 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1882 | |
| 1883 | // Return the generated code. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1884 | return GetCode(function); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 1885 | } |
| 1886 | |
| 1887 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1888 | Handle<Code> CallStubCompiler::CompileArrayPopCall( |
| 1889 | Handle<Object> object, |
| 1890 | Handle<JSObject> holder, |
| 1891 | Handle<JSGlobalPropertyCell> cell, |
| 1892 | Handle<JSFunction> function, |
| 1893 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1894 | // ----------- S t a t e ------------- |
| 1895 | // -- a2 : name |
| 1896 | // -- ra : return address |
| 1897 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero-based) |
| 1898 | // -- ... |
| 1899 | // -- sp[argc * 4] : receiver |
| 1900 | // ----------------------------------- |
| 1901 | |
| 1902 | // If object is not an array, bail out to regular call. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1903 | if (!object->IsJSArray() || !cell.is_null()) return Handle<Code>::null(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1904 | |
| 1905 | Label miss, return_undefined, call_builtin; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1906 | Register receiver = a1; |
| 1907 | Register elements = a3; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1908 | GenerateNameCheck(name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1909 | |
| 1910 | // Get the receiver from the stack. |
| 1911 | const int argc = arguments().immediate(); |
| 1912 | __ lw(receiver, MemOperand(sp, argc * kPointerSize)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1913 | // Check that the receiver isn't a smi. |
| 1914 | __ JumpIfSmi(receiver, &miss); |
| 1915 | |
| 1916 | // Check that the maps haven't changed. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1917 | CheckPrototypes(Handle<JSObject>::cast(object), receiver, holder, elements, |
| 1918 | t0, v0, name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1919 | |
| 1920 | // Get the elements array of the object. |
| 1921 | __ lw(elements, FieldMemOperand(receiver, JSArray::kElementsOffset)); |
| 1922 | |
| 1923 | // Check that the elements are in fast mode and writable. |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 1924 | __ CheckMap(elements, |
| 1925 | v0, |
| 1926 | Heap::kFixedArrayMapRootIndex, |
| 1927 | &call_builtin, |
| 1928 | DONT_DO_SMI_CHECK); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1929 | |
| 1930 | // Get the array's length into t0 and calculate new length. |
| 1931 | __ lw(t0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1932 | __ Subu(t0, t0, Operand(Smi::FromInt(1))); |
| 1933 | __ Branch(&return_undefined, lt, t0, Operand(zero_reg)); |
| 1934 | |
| 1935 | // Get the last element. |
| 1936 | __ LoadRoot(t2, Heap::kTheHoleValueRootIndex); |
| 1937 | STATIC_ASSERT(kSmiTagSize == 1); |
| 1938 | STATIC_ASSERT(kSmiTag == 0); |
| 1939 | // We can't address the last element in one operation. Compute the more |
| 1940 | // expensive shift first, and use an offset later on. |
| 1941 | __ sll(t1, t0, kPointerSizeLog2 - kSmiTagSize); |
| 1942 | __ Addu(elements, elements, t1); |
fschneider@chromium.org | 7d10be5 | 2012-04-10 12:30:14 +0000 | [diff] [blame] | 1943 | __ lw(v0, FieldMemOperand(elements, FixedArray::kHeaderSize)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1944 | __ Branch(&call_builtin, eq, v0, Operand(t2)); |
| 1945 | |
| 1946 | // Set the array's length. |
| 1947 | __ sw(t0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1948 | |
| 1949 | // Fill with the hole. |
fschneider@chromium.org | 7d10be5 | 2012-04-10 12:30:14 +0000 | [diff] [blame] | 1950 | __ sw(t2, FieldMemOperand(elements, FixedArray::kHeaderSize)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1951 | __ Drop(argc + 1); |
| 1952 | __ Ret(); |
| 1953 | |
| 1954 | __ bind(&return_undefined); |
| 1955 | __ LoadRoot(v0, Heap::kUndefinedValueRootIndex); |
| 1956 | __ Drop(argc + 1); |
| 1957 | __ Ret(); |
| 1958 | |
| 1959 | __ bind(&call_builtin); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 1960 | __ TailCallExternalReference( |
| 1961 | ExternalReference(Builtins::c_ArrayPop, isolate()), argc + 1, 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1962 | |
| 1963 | // Handle call cache miss. |
| 1964 | __ bind(&miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1965 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1966 | |
| 1967 | // Return the generated code. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1968 | return GetCode(function); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1969 | } |
| 1970 | |
| 1971 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1972 | Handle<Code> CallStubCompiler::CompileStringCharCodeAtCall( |
| 1973 | Handle<Object> object, |
| 1974 | Handle<JSObject> holder, |
| 1975 | Handle<JSGlobalPropertyCell> cell, |
| 1976 | Handle<JSFunction> function, |
| 1977 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1978 | // ----------- S t a t e ------------- |
| 1979 | // -- a2 : function name |
| 1980 | // -- ra : return address |
| 1981 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero-based) |
| 1982 | // -- ... |
| 1983 | // -- sp[argc * 4] : receiver |
| 1984 | // ----------------------------------- |
| 1985 | |
| 1986 | // If object is not a string, bail out to regular call. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1987 | if (!object->IsString() || !cell.is_null()) return Handle<Code>::null(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1988 | |
| 1989 | const int argc = arguments().immediate(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1990 | Label miss; |
| 1991 | Label name_miss; |
| 1992 | Label index_out_of_range; |
| 1993 | |
| 1994 | Label* index_out_of_range_label = &index_out_of_range; |
| 1995 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 1996 | if (kind_ == Code::CALL_IC && |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1997 | (CallICBase::StringStubState::decode(extra_state_) == |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 1998 | DEFAULT_STRING_STUB)) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1999 | index_out_of_range_label = &miss; |
| 2000 | } |
| 2001 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2002 | GenerateNameCheck(name, &name_miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2003 | |
| 2004 | // Check that the maps starting from the prototype haven't changed. |
| 2005 | GenerateDirectLoadGlobalFunctionPrototype(masm(), |
| 2006 | Context::STRING_FUNCTION_INDEX, |
| 2007 | v0, |
| 2008 | &miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2009 | ASSERT(!object.is_identical_to(holder)); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 2010 | CheckPrototypes( |
| 2011 | Handle<JSObject>(JSObject::cast(object->GetPrototype(isolate()))), |
| 2012 | v0, holder, a1, a3, t0, name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2013 | |
| 2014 | Register receiver = a1; |
| 2015 | Register index = t1; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2016 | Register result = v0; |
| 2017 | __ lw(receiver, MemOperand(sp, argc * kPointerSize)); |
| 2018 | if (argc > 0) { |
| 2019 | __ lw(index, MemOperand(sp, (argc - 1) * kPointerSize)); |
| 2020 | } else { |
| 2021 | __ LoadRoot(index, Heap::kUndefinedValueRootIndex); |
| 2022 | } |
| 2023 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2024 | StringCharCodeAtGenerator generator(receiver, |
| 2025 | index, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2026 | result, |
| 2027 | &miss, // When not a string. |
| 2028 | &miss, // When not a number. |
| 2029 | index_out_of_range_label, |
| 2030 | STRING_INDEX_IS_NUMBER); |
| 2031 | generator.GenerateFast(masm()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2032 | __ Drop(argc + 1); |
| 2033 | __ Ret(); |
| 2034 | |
| 2035 | StubRuntimeCallHelper call_helper; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2036 | generator.GenerateSlow(masm(), call_helper); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2037 | |
| 2038 | if (index_out_of_range.is_linked()) { |
| 2039 | __ bind(&index_out_of_range); |
| 2040 | __ LoadRoot(v0, Heap::kNanValueRootIndex); |
| 2041 | __ Drop(argc + 1); |
| 2042 | __ Ret(); |
| 2043 | } |
| 2044 | |
| 2045 | __ bind(&miss); |
| 2046 | // Restore function name in a2. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2047 | __ li(a2, name); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2048 | __ bind(&name_miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2049 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2050 | |
| 2051 | // Return the generated code. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2052 | return GetCode(function); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2053 | } |
| 2054 | |
| 2055 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2056 | Handle<Code> CallStubCompiler::CompileStringCharAtCall( |
| 2057 | Handle<Object> object, |
| 2058 | Handle<JSObject> holder, |
| 2059 | Handle<JSGlobalPropertyCell> cell, |
| 2060 | Handle<JSFunction> function, |
| 2061 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2062 | // ----------- S t a t e ------------- |
| 2063 | // -- a2 : function name |
| 2064 | // -- ra : return address |
| 2065 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero-based) |
| 2066 | // -- ... |
| 2067 | // -- sp[argc * 4] : receiver |
| 2068 | // ----------------------------------- |
| 2069 | |
| 2070 | // If object is not a string, bail out to regular call. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2071 | if (!object->IsString() || !cell.is_null()) return Handle<Code>::null(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2072 | |
| 2073 | const int argc = arguments().immediate(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2074 | Label miss; |
| 2075 | Label name_miss; |
| 2076 | Label index_out_of_range; |
| 2077 | Label* index_out_of_range_label = &index_out_of_range; |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2078 | if (kind_ == Code::CALL_IC && |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2079 | (CallICBase::StringStubState::decode(extra_state_) == |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2080 | DEFAULT_STRING_STUB)) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2081 | index_out_of_range_label = &miss; |
| 2082 | } |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2083 | GenerateNameCheck(name, &name_miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2084 | |
| 2085 | // Check that the maps starting from the prototype haven't changed. |
| 2086 | GenerateDirectLoadGlobalFunctionPrototype(masm(), |
| 2087 | Context::STRING_FUNCTION_INDEX, |
| 2088 | v0, |
| 2089 | &miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2090 | ASSERT(!object.is_identical_to(holder)); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 2091 | CheckPrototypes( |
| 2092 | Handle<JSObject>(JSObject::cast(object->GetPrototype(isolate()))), |
| 2093 | v0, holder, a1, a3, t0, name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2094 | |
| 2095 | Register receiver = v0; |
| 2096 | Register index = t1; |
danno@chromium.org | c612e02 | 2011-11-10 11:38:15 +0000 | [diff] [blame] | 2097 | Register scratch = a3; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2098 | Register result = v0; |
| 2099 | __ lw(receiver, MemOperand(sp, argc * kPointerSize)); |
| 2100 | if (argc > 0) { |
| 2101 | __ lw(index, MemOperand(sp, (argc - 1) * kPointerSize)); |
| 2102 | } else { |
| 2103 | __ LoadRoot(index, Heap::kUndefinedValueRootIndex); |
| 2104 | } |
| 2105 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2106 | StringCharAtGenerator generator(receiver, |
| 2107 | index, |
danno@chromium.org | c612e02 | 2011-11-10 11:38:15 +0000 | [diff] [blame] | 2108 | scratch, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2109 | result, |
| 2110 | &miss, // When not a string. |
| 2111 | &miss, // When not a number. |
| 2112 | index_out_of_range_label, |
| 2113 | STRING_INDEX_IS_NUMBER); |
| 2114 | generator.GenerateFast(masm()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2115 | __ Drop(argc + 1); |
| 2116 | __ Ret(); |
| 2117 | |
| 2118 | StubRuntimeCallHelper call_helper; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2119 | generator.GenerateSlow(masm(), call_helper); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2120 | |
| 2121 | if (index_out_of_range.is_linked()) { |
| 2122 | __ bind(&index_out_of_range); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 2123 | __ LoadRoot(v0, Heap::kempty_stringRootIndex); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2124 | __ Drop(argc + 1); |
| 2125 | __ Ret(); |
| 2126 | } |
| 2127 | |
| 2128 | __ bind(&miss); |
| 2129 | // Restore function name in a2. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2130 | __ li(a2, name); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2131 | __ bind(&name_miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2132 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2133 | |
| 2134 | // Return the generated code. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2135 | return GetCode(function); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2136 | } |
| 2137 | |
| 2138 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2139 | Handle<Code> CallStubCompiler::CompileStringFromCharCodeCall( |
| 2140 | Handle<Object> object, |
| 2141 | Handle<JSObject> holder, |
| 2142 | Handle<JSGlobalPropertyCell> cell, |
| 2143 | Handle<JSFunction> function, |
| 2144 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2145 | // ----------- S t a t e ------------- |
| 2146 | // -- a2 : function name |
| 2147 | // -- ra : return address |
| 2148 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero-based) |
| 2149 | // -- ... |
| 2150 | // -- sp[argc * 4] : receiver |
| 2151 | // ----------------------------------- |
| 2152 | |
| 2153 | const int argc = arguments().immediate(); |
| 2154 | |
| 2155 | // If the object is not a JSObject or we got an unexpected number of |
| 2156 | // arguments, bail out to the regular call. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2157 | if (!object->IsJSObject() || argc != 1) return Handle<Code>::null(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2158 | |
| 2159 | Label miss; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2160 | GenerateNameCheck(name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2161 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2162 | if (cell.is_null()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2163 | __ lw(a1, MemOperand(sp, 1 * kPointerSize)); |
| 2164 | |
| 2165 | STATIC_ASSERT(kSmiTag == 0); |
| 2166 | __ JumpIfSmi(a1, &miss); |
| 2167 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2168 | CheckPrototypes(Handle<JSObject>::cast(object), a1, holder, v0, a3, t0, |
| 2169 | name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2170 | } else { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2171 | ASSERT(cell->value() == *function); |
| 2172 | GenerateGlobalReceiverCheck(Handle<JSObject>::cast(object), holder, name, |
| 2173 | &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2174 | GenerateLoadFunctionFromCell(cell, function, &miss); |
| 2175 | } |
| 2176 | |
| 2177 | // Load the char code argument. |
| 2178 | Register code = a1; |
| 2179 | __ lw(code, MemOperand(sp, 0 * kPointerSize)); |
| 2180 | |
| 2181 | // Check the code is a smi. |
| 2182 | Label slow; |
| 2183 | STATIC_ASSERT(kSmiTag == 0); |
| 2184 | __ JumpIfNotSmi(code, &slow); |
| 2185 | |
| 2186 | // Convert the smi code to uint16. |
| 2187 | __ And(code, code, Operand(Smi::FromInt(0xffff))); |
| 2188 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2189 | StringCharFromCodeGenerator generator(code, v0); |
| 2190 | generator.GenerateFast(masm()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2191 | __ Drop(argc + 1); |
| 2192 | __ Ret(); |
| 2193 | |
| 2194 | StubRuntimeCallHelper call_helper; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2195 | generator.GenerateSlow(masm(), call_helper); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2196 | |
| 2197 | // Tail call the full function. We do not have to patch the receiver |
| 2198 | // because the function makes no use of it. |
| 2199 | __ bind(&slow); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 2200 | ParameterCount expected(function); |
| 2201 | __ InvokeFunction(function, expected, arguments(), |
| 2202 | JUMP_FUNCTION, NullCallWrapper(), CALL_AS_METHOD); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2203 | |
| 2204 | __ bind(&miss); |
| 2205 | // a2: function name. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2206 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2207 | |
| 2208 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 2209 | return cell.is_null() ? GetCode(function) : GetCode(Code::NORMAL, name); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2210 | } |
| 2211 | |
| 2212 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2213 | Handle<Code> CallStubCompiler::CompileMathFloorCall( |
| 2214 | Handle<Object> object, |
| 2215 | Handle<JSObject> holder, |
| 2216 | Handle<JSGlobalPropertyCell> cell, |
| 2217 | Handle<JSFunction> function, |
| 2218 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2219 | // ----------- S t a t e ------------- |
| 2220 | // -- a2 : function name |
| 2221 | // -- ra : return address |
| 2222 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero-based) |
| 2223 | // -- ... |
| 2224 | // -- sp[argc * 4] : receiver |
| 2225 | // ----------------------------------- |
| 2226 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2227 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2228 | const int argc = arguments().immediate(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2229 | // If the object is not a JSObject or we got an unexpected number of |
| 2230 | // arguments, bail out to the regular call. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2231 | if (!object->IsJSObject() || argc != 1) return Handle<Code>::null(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2232 | |
| 2233 | Label miss, slow; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2234 | GenerateNameCheck(name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2235 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2236 | if (cell.is_null()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2237 | __ lw(a1, MemOperand(sp, 1 * kPointerSize)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2238 | STATIC_ASSERT(kSmiTag == 0); |
| 2239 | __ JumpIfSmi(a1, &miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2240 | CheckPrototypes(Handle<JSObject>::cast(object), a1, holder, a0, a3, t0, |
| 2241 | name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2242 | } else { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2243 | ASSERT(cell->value() == *function); |
| 2244 | GenerateGlobalReceiverCheck(Handle<JSObject>::cast(object), holder, name, |
| 2245 | &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2246 | GenerateLoadFunctionFromCell(cell, function, &miss); |
| 2247 | } |
| 2248 | |
| 2249 | // Load the (only) argument into v0. |
| 2250 | __ lw(v0, MemOperand(sp, 0 * kPointerSize)); |
| 2251 | |
| 2252 | // If the argument is a smi, just return. |
| 2253 | STATIC_ASSERT(kSmiTag == 0); |
| 2254 | __ And(t0, v0, Operand(kSmiTagMask)); |
| 2255 | __ Drop(argc + 1, eq, t0, Operand(zero_reg)); |
| 2256 | __ Ret(eq, t0, Operand(zero_reg)); |
| 2257 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2258 | __ CheckMap(v0, a1, Heap::kHeapNumberMapRootIndex, &slow, DONT_DO_SMI_CHECK); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2259 | |
| 2260 | Label wont_fit_smi, no_fpu_error, restore_fcsr_and_return; |
| 2261 | |
| 2262 | // If fpu is enabled, we use the floor instruction. |
| 2263 | |
| 2264 | // Load the HeapNumber value. |
| 2265 | __ ldc1(f0, FieldMemOperand(v0, HeapNumber::kValueOffset)); |
| 2266 | |
| 2267 | // Backup FCSR. |
| 2268 | __ cfc1(a3, FCSR); |
| 2269 | // Clearing FCSR clears the exception mask with no side-effects. |
| 2270 | __ ctc1(zero_reg, FCSR); |
| 2271 | // Convert the argument to an integer. |
| 2272 | __ floor_w_d(f0, f0); |
| 2273 | |
| 2274 | // Start checking for special cases. |
| 2275 | // Get the argument exponent and clear the sign bit. |
| 2276 | __ lw(t1, FieldMemOperand(v0, HeapNumber::kValueOffset + kPointerSize)); |
| 2277 | __ And(t2, t1, Operand(~HeapNumber::kSignMask)); |
| 2278 | __ srl(t2, t2, HeapNumber::kMantissaBitsInTopWord); |
| 2279 | |
| 2280 | // Retrieve FCSR and check for fpu errors. |
| 2281 | __ cfc1(t5, FCSR); |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 2282 | __ And(t5, t5, Operand(kFCSRExceptionFlagMask)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2283 | __ Branch(&no_fpu_error, eq, t5, Operand(zero_reg)); |
| 2284 | |
| 2285 | // Check for NaN, Infinity, and -Infinity. |
| 2286 | // They are invariant through a Math.Floor call, so just |
| 2287 | // return the original argument. |
| 2288 | __ Subu(t3, t2, Operand(HeapNumber::kExponentMask |
| 2289 | >> HeapNumber::kMantissaBitsInTopWord)); |
| 2290 | __ Branch(&restore_fcsr_and_return, eq, t3, Operand(zero_reg)); |
| 2291 | // We had an overflow or underflow in the conversion. Check if we |
| 2292 | // have a big exponent. |
| 2293 | // If greater or equal, the argument is already round and in v0. |
| 2294 | __ Branch(&restore_fcsr_and_return, ge, t3, |
| 2295 | Operand(HeapNumber::kMantissaBits)); |
| 2296 | __ Branch(&wont_fit_smi); |
| 2297 | |
| 2298 | __ bind(&no_fpu_error); |
| 2299 | // Move the result back to v0. |
| 2300 | __ mfc1(v0, f0); |
| 2301 | // Check if the result fits into a smi. |
| 2302 | __ Addu(a1, v0, Operand(0x40000000)); |
| 2303 | __ Branch(&wont_fit_smi, lt, a1, Operand(zero_reg)); |
| 2304 | // Tag the result. |
| 2305 | STATIC_ASSERT(kSmiTag == 0); |
| 2306 | __ sll(v0, v0, kSmiTagSize); |
| 2307 | |
| 2308 | // Check for -0. |
| 2309 | __ Branch(&restore_fcsr_and_return, ne, v0, Operand(zero_reg)); |
| 2310 | // t1 already holds the HeapNumber exponent. |
| 2311 | __ And(t0, t1, Operand(HeapNumber::kSignMask)); |
| 2312 | // If our HeapNumber is negative it was -0, so load its address and return. |
| 2313 | // Else v0 is loaded with 0, so we can also just return. |
| 2314 | __ Branch(&restore_fcsr_and_return, eq, t0, Operand(zero_reg)); |
| 2315 | __ lw(v0, MemOperand(sp, 0 * kPointerSize)); |
| 2316 | |
| 2317 | __ bind(&restore_fcsr_and_return); |
| 2318 | // Restore FCSR and return. |
| 2319 | __ ctc1(a3, FCSR); |
| 2320 | |
| 2321 | __ Drop(argc + 1); |
| 2322 | __ Ret(); |
| 2323 | |
| 2324 | __ bind(&wont_fit_smi); |
| 2325 | // Restore FCSR and fall to slow case. |
| 2326 | __ ctc1(a3, FCSR); |
| 2327 | |
| 2328 | __ bind(&slow); |
| 2329 | // Tail call the full function. We do not have to patch the receiver |
| 2330 | // because the function makes no use of it. |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 2331 | ParameterCount expected(function); |
| 2332 | __ InvokeFunction(function, expected, arguments(), |
| 2333 | JUMP_FUNCTION, NullCallWrapper(), CALL_AS_METHOD); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2334 | |
| 2335 | __ bind(&miss); |
| 2336 | // a2: function name. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2337 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2338 | |
| 2339 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 2340 | return cell.is_null() ? GetCode(function) : GetCode(Code::NORMAL, name); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2341 | } |
| 2342 | |
| 2343 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2344 | Handle<Code> CallStubCompiler::CompileMathAbsCall( |
| 2345 | Handle<Object> object, |
| 2346 | Handle<JSObject> holder, |
| 2347 | Handle<JSGlobalPropertyCell> cell, |
| 2348 | Handle<JSFunction> function, |
| 2349 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2350 | // ----------- S t a t e ------------- |
| 2351 | // -- a2 : function name |
| 2352 | // -- ra : return address |
| 2353 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero-based) |
| 2354 | // -- ... |
| 2355 | // -- sp[argc * 4] : receiver |
| 2356 | // ----------------------------------- |
| 2357 | |
| 2358 | const int argc = arguments().immediate(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2359 | // If the object is not a JSObject or we got an unexpected number of |
| 2360 | // arguments, bail out to the regular call. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2361 | if (!object->IsJSObject() || argc != 1) return Handle<Code>::null(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2362 | |
| 2363 | Label miss; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2364 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2365 | GenerateNameCheck(name, &miss); |
| 2366 | if (cell.is_null()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2367 | __ lw(a1, MemOperand(sp, 1 * kPointerSize)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2368 | STATIC_ASSERT(kSmiTag == 0); |
| 2369 | __ JumpIfSmi(a1, &miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2370 | CheckPrototypes(Handle<JSObject>::cast(object), a1, holder, v0, a3, t0, |
| 2371 | name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2372 | } else { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2373 | ASSERT(cell->value() == *function); |
| 2374 | GenerateGlobalReceiverCheck(Handle<JSObject>::cast(object), holder, name, |
| 2375 | &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2376 | GenerateLoadFunctionFromCell(cell, function, &miss); |
| 2377 | } |
| 2378 | |
| 2379 | // Load the (only) argument into v0. |
| 2380 | __ lw(v0, MemOperand(sp, 0 * kPointerSize)); |
| 2381 | |
| 2382 | // Check if the argument is a smi. |
| 2383 | Label not_smi; |
| 2384 | STATIC_ASSERT(kSmiTag == 0); |
| 2385 | __ JumpIfNotSmi(v0, ¬_smi); |
| 2386 | |
| 2387 | // Do bitwise not or do nothing depending on the sign of the |
| 2388 | // argument. |
| 2389 | __ sra(t0, v0, kBitsPerInt - 1); |
| 2390 | __ Xor(a1, v0, t0); |
| 2391 | |
| 2392 | // Add 1 or do nothing depending on the sign of the argument. |
| 2393 | __ Subu(v0, a1, t0); |
| 2394 | |
| 2395 | // If the result is still negative, go to the slow case. |
| 2396 | // This only happens for the most negative smi. |
| 2397 | Label slow; |
| 2398 | __ Branch(&slow, lt, v0, Operand(zero_reg)); |
| 2399 | |
| 2400 | // Smi case done. |
| 2401 | __ Drop(argc + 1); |
| 2402 | __ Ret(); |
| 2403 | |
| 2404 | // Check if the argument is a heap number and load its exponent and |
| 2405 | // sign. |
| 2406 | __ bind(¬_smi); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2407 | __ CheckMap(v0, a1, Heap::kHeapNumberMapRootIndex, &slow, DONT_DO_SMI_CHECK); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2408 | __ lw(a1, FieldMemOperand(v0, HeapNumber::kExponentOffset)); |
| 2409 | |
| 2410 | // Check the sign of the argument. If the argument is positive, |
| 2411 | // just return it. |
| 2412 | Label negative_sign; |
| 2413 | __ And(t0, a1, Operand(HeapNumber::kSignMask)); |
| 2414 | __ Branch(&negative_sign, ne, t0, Operand(zero_reg)); |
| 2415 | __ Drop(argc + 1); |
| 2416 | __ Ret(); |
| 2417 | |
| 2418 | // If the argument is negative, clear the sign, and return a new |
| 2419 | // number. |
| 2420 | __ bind(&negative_sign); |
| 2421 | __ Xor(a1, a1, Operand(HeapNumber::kSignMask)); |
| 2422 | __ lw(a3, FieldMemOperand(v0, HeapNumber::kMantissaOffset)); |
| 2423 | __ LoadRoot(t2, Heap::kHeapNumberMapRootIndex); |
| 2424 | __ AllocateHeapNumber(v0, t0, t1, t2, &slow); |
| 2425 | __ sw(a1, FieldMemOperand(v0, HeapNumber::kExponentOffset)); |
| 2426 | __ sw(a3, FieldMemOperand(v0, HeapNumber::kMantissaOffset)); |
| 2427 | __ Drop(argc + 1); |
| 2428 | __ Ret(); |
| 2429 | |
| 2430 | // Tail call the full function. We do not have to patch the receiver |
| 2431 | // because the function makes no use of it. |
| 2432 | __ bind(&slow); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 2433 | ParameterCount expected(function); |
| 2434 | __ InvokeFunction(function, expected, arguments(), |
| 2435 | JUMP_FUNCTION, NullCallWrapper(), CALL_AS_METHOD); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2436 | |
| 2437 | __ bind(&miss); |
| 2438 | // a2: function name. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2439 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2440 | |
| 2441 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 2442 | return cell.is_null() ? GetCode(function) : GetCode(Code::NORMAL, name); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2443 | } |
| 2444 | |
| 2445 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2446 | Handle<Code> CallStubCompiler::CompileFastApiCall( |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2447 | const CallOptimization& optimization, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2448 | Handle<Object> object, |
| 2449 | Handle<JSObject> holder, |
| 2450 | Handle<JSGlobalPropertyCell> cell, |
| 2451 | Handle<JSFunction> function, |
| 2452 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2453 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2454 | Counters* counters = isolate()->counters(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2455 | |
| 2456 | ASSERT(optimization.is_simple_api_call()); |
| 2457 | // Bail out if object is a global object as we don't want to |
| 2458 | // repatch it to global receiver. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2459 | if (object->IsGlobalObject()) return Handle<Code>::null(); |
| 2460 | if (!cell.is_null()) return Handle<Code>::null(); |
| 2461 | if (!object->IsJSObject()) return Handle<Code>::null(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2462 | int depth = optimization.GetPrototypeDepthOfExpectedType( |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2463 | Handle<JSObject>::cast(object), holder); |
| 2464 | if (depth == kInvalidProtoDepth) return Handle<Code>::null(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2465 | |
| 2466 | Label miss, miss_before_stack_reserved; |
| 2467 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2468 | GenerateNameCheck(name, &miss_before_stack_reserved); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2469 | |
| 2470 | // Get the receiver from the stack. |
| 2471 | const int argc = arguments().immediate(); |
| 2472 | __ lw(a1, MemOperand(sp, argc * kPointerSize)); |
| 2473 | |
| 2474 | // Check that the receiver isn't a smi. |
| 2475 | __ JumpIfSmi(a1, &miss_before_stack_reserved); |
| 2476 | |
| 2477 | __ IncrementCounter(counters->call_const(), 1, a0, a3); |
| 2478 | __ IncrementCounter(counters->call_const_fast_api(), 1, a0, a3); |
| 2479 | |
| 2480 | ReserveSpaceForFastApiCall(masm(), a0); |
| 2481 | |
| 2482 | // Check that the maps haven't changed and find a Holder as a side effect. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2483 | CheckPrototypes(Handle<JSObject>::cast(object), a1, holder, a0, a3, t0, name, |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2484 | depth, &miss); |
| 2485 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2486 | GenerateFastApiDirectCall(masm(), optimization, argc); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2487 | |
| 2488 | __ bind(&miss); |
| 2489 | FreeSpaceForFastApiCall(masm()); |
| 2490 | |
| 2491 | __ bind(&miss_before_stack_reserved); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2492 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2493 | |
| 2494 | // Return the generated code. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2495 | return GetCode(function); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2496 | } |
| 2497 | |
| 2498 | |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2499 | void CallStubCompiler::CompileHandlerFrontend(Handle<Object> object, |
| 2500 | Handle<JSObject> holder, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 2501 | Handle<Name> name, |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2502 | CheckType check, |
| 2503 | Label* success) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2504 | // ----------- S t a t e ------------- |
| 2505 | // -- a2 : name |
| 2506 | // -- ra : return address |
| 2507 | // ----------------------------------- |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2508 | Label miss; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2509 | GenerateNameCheck(name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2510 | |
| 2511 | // Get the receiver from the stack. |
| 2512 | const int argc = arguments().immediate(); |
| 2513 | __ lw(a1, MemOperand(sp, argc * kPointerSize)); |
| 2514 | |
| 2515 | // Check that the receiver isn't a smi. |
| 2516 | if (check != NUMBER_CHECK) { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2517 | __ JumpIfSmi(a1, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2518 | } |
| 2519 | |
| 2520 | // Make sure that it's okay not to patch the on stack receiver |
| 2521 | // unless we're doing a receiver map check. |
| 2522 | ASSERT(!object->IsGlobalObject() || check == RECEIVER_MAP_CHECK); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2523 | switch (check) { |
| 2524 | case RECEIVER_MAP_CHECK: |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 2525 | __ IncrementCounter(isolate()->counters()->call_const(), 1, a0, a3); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2526 | |
| 2527 | // Check that the maps haven't changed. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2528 | CheckPrototypes(Handle<JSObject>::cast(object), a1, holder, a0, a3, t0, |
| 2529 | name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2530 | |
| 2531 | // Patch the receiver on the stack with the global proxy if |
| 2532 | // necessary. |
| 2533 | if (object->IsGlobalObject()) { |
| 2534 | __ lw(a3, FieldMemOperand(a1, GlobalObject::kGlobalReceiverOffset)); |
| 2535 | __ sw(a3, MemOperand(sp, argc * kPointerSize)); |
| 2536 | } |
| 2537 | break; |
| 2538 | |
| 2539 | case STRING_CHECK: |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 2540 | // Check that the object is a string. |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2541 | __ GetObjectType(a1, a3, a3); |
| 2542 | __ Branch(&miss, Ugreater_equal, a3, Operand(FIRST_NONSTRING_TYPE)); |
| 2543 | // Check that the maps starting from the prototype haven't changed. |
| 2544 | GenerateDirectLoadGlobalFunctionPrototype( |
| 2545 | masm(), Context::STRING_FUNCTION_INDEX, a0, &miss); |
| 2546 | CheckPrototypes( |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 2547 | Handle<JSObject>(JSObject::cast(object->GetPrototype(isolate()))), |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2548 | a0, holder, a3, a1, t0, name, &miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2549 | break; |
| 2550 | |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 2551 | case SYMBOL_CHECK: |
| 2552 | // Check that the object is a symbol. |
| 2553 | __ GetObjectType(a1, a1, a3); |
| 2554 | __ Branch(&miss, ne, a3, Operand(SYMBOL_TYPE)); |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 2555 | // Check that the maps starting from the prototype haven't changed. |
| 2556 | GenerateDirectLoadGlobalFunctionPrototype( |
| 2557 | masm(), Context::SYMBOL_FUNCTION_INDEX, a0, &miss); |
| 2558 | CheckPrototypes( |
| 2559 | Handle<JSObject>(JSObject::cast(object->GetPrototype(isolate()))), |
| 2560 | a0, holder, a3, a1, t0, name, &miss); |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 2561 | break; |
| 2562 | |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2563 | case NUMBER_CHECK: { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2564 | Label fast; |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2565 | // Check that the object is a smi or a heap number. |
| 2566 | __ JumpIfSmi(a1, &fast); |
| 2567 | __ GetObjectType(a1, a0, a0); |
| 2568 | __ Branch(&miss, ne, a0, Operand(HEAP_NUMBER_TYPE)); |
| 2569 | __ bind(&fast); |
| 2570 | // Check that the maps starting from the prototype haven't changed. |
| 2571 | GenerateDirectLoadGlobalFunctionPrototype( |
| 2572 | masm(), Context::NUMBER_FUNCTION_INDEX, a0, &miss); |
| 2573 | CheckPrototypes( |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 2574 | Handle<JSObject>(JSObject::cast(object->GetPrototype(isolate()))), |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2575 | a0, holder, a3, a1, t0, name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2576 | break; |
| 2577 | } |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2578 | case BOOLEAN_CHECK: { |
| 2579 | Label fast; |
| 2580 | // Check that the object is a boolean. |
| 2581 | __ LoadRoot(t0, Heap::kTrueValueRootIndex); |
| 2582 | __ Branch(&fast, eq, a1, Operand(t0)); |
| 2583 | __ LoadRoot(t0, Heap::kFalseValueRootIndex); |
| 2584 | __ Branch(&miss, ne, a1, Operand(t0)); |
| 2585 | __ bind(&fast); |
| 2586 | // Check that the maps starting from the prototype haven't changed. |
| 2587 | GenerateDirectLoadGlobalFunctionPrototype( |
| 2588 | masm(), Context::BOOLEAN_FUNCTION_INDEX, a0, &miss); |
| 2589 | CheckPrototypes( |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 2590 | Handle<JSObject>(JSObject::cast(object->GetPrototype(isolate()))), |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2591 | a0, holder, a3, a1, t0, name, &miss); |
| 2592 | break; |
| 2593 | } |
| 2594 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2595 | |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2596 | __ jmp(success); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2597 | |
| 2598 | // Handle call cache miss. |
| 2599 | __ bind(&miss); |
| 2600 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2601 | GenerateMissBranch(); |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2602 | } |
| 2603 | |
| 2604 | |
| 2605 | void CallStubCompiler::CompileHandlerBackend(Handle<JSFunction> function) { |
| 2606 | CallKind call_kind = CallICBase::Contextual::decode(extra_state_) |
| 2607 | ? CALL_AS_FUNCTION |
| 2608 | : CALL_AS_METHOD; |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 2609 | ParameterCount expected(function); |
| 2610 | __ InvokeFunction(function, expected, arguments(), |
| 2611 | JUMP_FUNCTION, NullCallWrapper(), call_kind); |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2612 | } |
| 2613 | |
| 2614 | |
| 2615 | Handle<Code> CallStubCompiler::CompileCallConstant( |
| 2616 | Handle<Object> object, |
| 2617 | Handle<JSObject> holder, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 2618 | Handle<Name> name, |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2619 | CheckType check, |
| 2620 | Handle<JSFunction> function) { |
| 2621 | if (HasCustomCallGenerator(function)) { |
| 2622 | Handle<Code> code = CompileCustomCall(object, holder, |
| 2623 | Handle<JSGlobalPropertyCell>::null(), |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 2624 | function, Handle<String>::cast(name)); |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2625 | // A null handle means bail out to the regular compiler code below. |
| 2626 | if (!code.is_null()) return code; |
| 2627 | } |
| 2628 | |
| 2629 | Label success; |
| 2630 | |
| 2631 | CompileHandlerFrontend(object, holder, name, check, &success); |
| 2632 | __ bind(&success); |
| 2633 | CompileHandlerBackend(function); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2634 | |
| 2635 | // Return the generated code. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2636 | return GetCode(function); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2637 | } |
| 2638 | |
| 2639 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2640 | Handle<Code> CallStubCompiler::CompileCallInterceptor(Handle<JSObject> object, |
| 2641 | Handle<JSObject> holder, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 2642 | Handle<Name> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2643 | // ----------- S t a t e ------------- |
| 2644 | // -- a2 : name |
| 2645 | // -- ra : return address |
| 2646 | // ----------------------------------- |
| 2647 | |
| 2648 | Label miss; |
| 2649 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2650 | GenerateNameCheck(name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2651 | |
| 2652 | // Get the number of arguments. |
| 2653 | const int argc = arguments().immediate(); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2654 | LookupResult lookup(isolate()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2655 | LookupPostInterceptor(holder, name, &lookup); |
| 2656 | |
| 2657 | // Get the receiver from the stack. |
| 2658 | __ lw(a1, MemOperand(sp, argc * kPointerSize)); |
| 2659 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2660 | CallInterceptorCompiler compiler(this, arguments(), a2, extra_state_); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2661 | compiler.Compile(masm(), object, holder, name, &lookup, a1, a3, t0, a0, |
| 2662 | &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2663 | |
| 2664 | // Move returned value, the function to call, to a1. |
| 2665 | __ mov(a1, v0); |
| 2666 | // Restore receiver. |
| 2667 | __ lw(a0, MemOperand(sp, argc * kPointerSize)); |
| 2668 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2669 | GenerateCallFunction(masm(), object, arguments(), &miss, extra_state_); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2670 | |
| 2671 | // Handle call cache miss. |
| 2672 | __ bind(&miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2673 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2674 | |
| 2675 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 2676 | return GetCode(Code::INTERCEPTOR, name); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2677 | } |
| 2678 | |
| 2679 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2680 | Handle<Code> CallStubCompiler::CompileCallGlobal( |
| 2681 | Handle<JSObject> object, |
| 2682 | Handle<GlobalObject> holder, |
| 2683 | Handle<JSGlobalPropertyCell> cell, |
| 2684 | Handle<JSFunction> function, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 2685 | Handle<Name> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2686 | // ----------- S t a t e ------------- |
| 2687 | // -- a2 : name |
| 2688 | // -- ra : return address |
| 2689 | // ----------------------------------- |
| 2690 | |
| 2691 | if (HasCustomCallGenerator(function)) { |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 2692 | Handle<Code> code = CompileCustomCall( |
| 2693 | object, holder, cell, function, Handle<String>::cast(name)); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2694 | // A null handle means bail out to the regular compiler code below. |
| 2695 | if (!code.is_null()) return code; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2696 | } |
| 2697 | |
| 2698 | Label miss; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2699 | GenerateNameCheck(name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2700 | |
| 2701 | // Get the number of arguments. |
| 2702 | const int argc = arguments().immediate(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2703 | GenerateGlobalReceiverCheck(object, holder, name, &miss); |
| 2704 | GenerateLoadFunctionFromCell(cell, function, &miss); |
| 2705 | |
| 2706 | // Patch the receiver on the stack with the global proxy if |
| 2707 | // necessary. |
| 2708 | if (object->IsGlobalObject()) { |
| 2709 | __ lw(a3, FieldMemOperand(a0, GlobalObject::kGlobalReceiverOffset)); |
| 2710 | __ sw(a3, MemOperand(sp, argc * kPointerSize)); |
| 2711 | } |
| 2712 | |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 2713 | // Set up the context (function already in r1). |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2714 | __ lw(cp, FieldMemOperand(a1, JSFunction::kContextOffset)); |
| 2715 | |
| 2716 | // Jump to the cached code (tail call). |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 2717 | Counters* counters = isolate()->counters(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2718 | __ IncrementCounter(counters->call_global_inline(), 1, a3, t0); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2719 | ParameterCount expected(function->shared()->formal_parameter_count()); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2720 | CallKind call_kind = CallICBase::Contextual::decode(extra_state_) |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2721 | ? CALL_AS_FUNCTION |
| 2722 | : CALL_AS_METHOD; |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2723 | // We call indirectly through the code field in the function to |
| 2724 | // allow recompilation to take effect without changing any of the |
| 2725 | // call sites. |
| 2726 | __ lw(a3, FieldMemOperand(a1, JSFunction::kCodeEntryOffset)); |
| 2727 | __ InvokeCode(a3, expected, arguments(), JUMP_FUNCTION, |
| 2728 | NullCallWrapper(), call_kind); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2729 | |
| 2730 | // Handle call cache miss. |
| 2731 | __ bind(&miss); |
| 2732 | __ IncrementCounter(counters->call_global_inline_miss(), 1, a1, a3); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2733 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2734 | |
| 2735 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 2736 | return GetCode(Code::NORMAL, name); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2737 | } |
| 2738 | |
| 2739 | |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 2740 | Handle<Code> StoreStubCompiler::CompileStoreCallback( |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 2741 | Handle<Name> name, |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 2742 | Handle<JSObject> object, |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 2743 | Handle<JSObject> holder, |
yangguo@chromium.org | c03a192 | 2013-02-19 13:55:47 +0000 | [diff] [blame] | 2744 | Handle<ExecutableAccessorInfo> callback) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2745 | Label miss; |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 2746 | // Check that the maps haven't changed. |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 2747 | __ JumpIfSmi(receiver(), &miss); |
| 2748 | CheckPrototypes(object, receiver(), holder, |
| 2749 | scratch1(), scratch2(), scratch3(), name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2750 | |
| 2751 | // Stub never generated for non-global objects that require access |
| 2752 | // checks. |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 2753 | ASSERT(holder->IsJSGlobalProxy() || !holder->IsAccessCheckNeeded()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2754 | |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 2755 | __ push(receiver()); // Receiver. |
| 2756 | __ li(at, Operand(callback)); // Callback info. |
| 2757 | __ Push(at, this->name(), value()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2758 | |
| 2759 | // Do tail-call to the runtime system. |
| 2760 | ExternalReference store_callback_property = |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 2761 | ExternalReference(IC_Utility(IC::kStoreCallbackProperty), isolate()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2762 | __ TailCallExternalReference(store_callback_property, 4, 1); |
| 2763 | |
| 2764 | // Handle store cache miss. |
| 2765 | __ bind(&miss); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2766 | TailCallBuiltin(masm(), MissBuiltin(kind())); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2767 | |
| 2768 | // Return the generated code. |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2769 | return GetICCode(kind(), Code::CALLBACKS, name); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2770 | } |
| 2771 | |
| 2772 | |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 2773 | #undef __ |
| 2774 | #define __ ACCESS_MASM(masm) |
| 2775 | |
| 2776 | |
| 2777 | void StoreStubCompiler::GenerateStoreViaSetter( |
| 2778 | MacroAssembler* masm, |
| 2779 | Handle<JSFunction> setter) { |
| 2780 | // ----------- S t a t e ------------- |
| 2781 | // -- a0 : value |
| 2782 | // -- a1 : receiver |
| 2783 | // -- a2 : name |
| 2784 | // -- ra : return address |
| 2785 | // ----------------------------------- |
| 2786 | { |
| 2787 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 2788 | |
| 2789 | // Save value register, so we can restore it later. |
| 2790 | __ push(a0); |
| 2791 | |
| 2792 | if (!setter.is_null()) { |
| 2793 | // Call the JavaScript setter with receiver and value on the stack. |
| 2794 | __ push(a1); |
| 2795 | __ push(a0); |
| 2796 | ParameterCount actual(1); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 2797 | ParameterCount expected(setter); |
| 2798 | __ InvokeFunction(setter, expected, actual, |
| 2799 | CALL_FUNCTION, NullCallWrapper(), CALL_AS_METHOD); |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 2800 | } else { |
| 2801 | // If we generate a global code snippet for deoptimization only, remember |
| 2802 | // the place to continue after deoptimization. |
| 2803 | masm->isolate()->heap()->SetSetterStubDeoptPCOffset(masm->pc_offset()); |
| 2804 | } |
| 2805 | |
| 2806 | // We have to return the passed value, not the return value of the setter. |
| 2807 | __ pop(v0); |
| 2808 | |
| 2809 | // Restore context register. |
| 2810 | __ lw(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
| 2811 | } |
| 2812 | __ Ret(); |
| 2813 | } |
| 2814 | |
| 2815 | |
| 2816 | #undef __ |
| 2817 | #define __ ACCESS_MASM(masm()) |
| 2818 | |
| 2819 | |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 2820 | Handle<Code> StoreStubCompiler::CompileStoreInterceptor( |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 2821 | Handle<JSObject> object, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 2822 | Handle<Name> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2823 | Label miss; |
| 2824 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2825 | // Check that the map of the object hasn't changed. |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 2826 | __ CheckMap(receiver(), scratch1(), Handle<Map>(object->map()), &miss, |
jkummerow@chromium.org | 05ed9dd | 2012-01-23 14:42:48 +0000 | [diff] [blame] | 2827 | DO_SMI_CHECK, ALLOW_ELEMENT_TRANSITION_MAPS); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2828 | |
| 2829 | // Perform global security token check if needed. |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 2830 | if (object->IsJSGlobalProxy()) { |
| 2831 | __ CheckAccessGlobalProxy(receiver(), scratch1(), &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2832 | } |
| 2833 | |
| 2834 | // Stub is never generated for non-global objects that require access |
| 2835 | // checks. |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 2836 | ASSERT(object->IsJSGlobalProxy() || !object->IsAccessCheckNeeded()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2837 | |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 2838 | __ Push(receiver(), this->name(), value()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2839 | |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 2840 | __ li(scratch1(), Operand(Smi::FromInt(strict_mode()))); |
| 2841 | __ push(scratch1()); // strict mode |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2842 | |
| 2843 | // Do tail-call to the runtime system. |
| 2844 | ExternalReference store_ic_property = |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 2845 | ExternalReference(IC_Utility(IC::kStoreInterceptorProperty), isolate()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2846 | __ TailCallExternalReference(store_ic_property, 4, 1); |
| 2847 | |
| 2848 | // Handle store cache miss. |
| 2849 | __ bind(&miss); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2850 | TailCallBuiltin(masm(), MissBuiltin(kind())); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2851 | |
| 2852 | // Return the generated code. |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2853 | return GetICCode(kind(), Code::INTERCEPTOR, name); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 2854 | } |
| 2855 | |
| 2856 | |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 2857 | Handle<Code> StoreStubCompiler::CompileStoreGlobal( |
| 2858 | Handle<GlobalObject> object, |
| 2859 | Handle<JSGlobalPropertyCell> cell, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 2860 | Handle<Name> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2861 | Label miss; |
| 2862 | |
| 2863 | // Check that the map of the global has not changed. |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 2864 | __ lw(scratch1(), FieldMemOperand(receiver(), HeapObject::kMapOffset)); |
| 2865 | __ Branch(&miss, ne, scratch1(), Operand(Handle<Map>(object->map()))); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2866 | |
| 2867 | // Check that the value in the cell is not the hole. If it is, this |
| 2868 | // cell could have been deleted and reintroducing the global needs |
| 2869 | // to update the property details in the property dictionary of the |
| 2870 | // global object. We bail out to the runtime system to do that. |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 2871 | __ li(scratch1(), Operand(cell)); |
| 2872 | __ LoadRoot(scratch2(), Heap::kTheHoleValueRootIndex); |
| 2873 | __ lw(scratch3(), |
| 2874 | FieldMemOperand(scratch1(), JSGlobalPropertyCell::kValueOffset)); |
| 2875 | __ Branch(&miss, eq, scratch3(), Operand(scratch2())); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2876 | |
| 2877 | // Store the value in the cell. |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 2878 | __ sw(value(), |
| 2879 | FieldMemOperand(scratch1(), JSGlobalPropertyCell::kValueOffset)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2880 | __ mov(v0, a0); // Stored value must be returned in v0. |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 2881 | // Cells are always rescanned, so no write barrier here. |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 2882 | |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 2883 | Counters* counters = isolate()->counters(); |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 2884 | __ IncrementCounter( |
| 2885 | counters->named_store_global_inline(), 1, scratch1(), scratch2()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2886 | __ Ret(); |
| 2887 | |
| 2888 | // Handle store cache miss. |
| 2889 | __ bind(&miss); |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 2890 | __ IncrementCounter( |
| 2891 | counters->named_store_global_inline_miss(), 1, scratch1(), scratch2()); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2892 | TailCallBuiltin(masm(), MissBuiltin(kind())); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2893 | |
| 2894 | // Return the generated code. |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2895 | return GetICCode(kind(), Code::NORMAL, name); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2896 | } |
| 2897 | |
| 2898 | |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 2899 | Handle<Code> LoadStubCompiler::CompileLoadNonexistent( |
| 2900 | Handle<JSObject> object, |
| 2901 | Handle<JSObject> last, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 2902 | Handle<Name> name, |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 2903 | Handle<GlobalObject> global) { |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 2904 | Label success; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2905 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 2906 | NonexistentHandlerFrontend(object, last, name, &success, global); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2907 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 2908 | __ bind(&success); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2909 | // Return undefined if maps of the full prototype chain is still the same. |
| 2910 | __ LoadRoot(v0, Heap::kUndefinedValueRootIndex); |
| 2911 | __ Ret(); |
| 2912 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2913 | // Return the generated code. |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 2914 | return GetCode(kind(), Code::NONEXISTENT, name); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2915 | } |
| 2916 | |
| 2917 | |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 2918 | Register* LoadStubCompiler::registers() { |
| 2919 | // receiver, name, scratch1, scratch2, scratch3, scratch4. |
| 2920 | static Register registers[] = { a0, a2, a3, a1, t0, t1 }; |
| 2921 | return registers; |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2922 | } |
| 2923 | |
| 2924 | |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 2925 | Register* KeyedLoadStubCompiler::registers() { |
| 2926 | // receiver, name, scratch1, scratch2, scratch3, scratch4. |
| 2927 | static Register registers[] = { a1, a0, a2, a3, t0, t1 }; |
| 2928 | return registers; |
| 2929 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2930 | |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 2931 | |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2932 | Register* StoreStubCompiler::registers() { |
| 2933 | // receiver, name, value, scratch1, scratch2, scratch3. |
| 2934 | static Register registers[] = { a1, a2, a0, a3, t0, t1 }; |
| 2935 | return registers; |
| 2936 | } |
| 2937 | |
| 2938 | |
| 2939 | Register* KeyedStoreStubCompiler::registers() { |
| 2940 | // receiver, name, value, scratch1, scratch2, scratch3. |
| 2941 | static Register registers[] = { a2, a1, a0, a3, t0, t1 }; |
| 2942 | return registers; |
| 2943 | } |
| 2944 | |
| 2945 | |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 2946 | void KeyedLoadStubCompiler::GenerateNameCheck(Handle<Name> name, |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 2947 | Register name_reg, |
| 2948 | Label* miss) { |
| 2949 | __ Branch(miss, ne, name_reg, Operand(name)); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2950 | } |
| 2951 | |
| 2952 | |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2953 | void KeyedStoreStubCompiler::GenerateNameCheck(Handle<Name> name, |
| 2954 | Register name_reg, |
| 2955 | Label* miss) { |
| 2956 | __ Branch(miss, ne, name_reg, Operand(name)); |
| 2957 | } |
| 2958 | |
| 2959 | |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 2960 | #undef __ |
| 2961 | #define __ ACCESS_MASM(masm) |
| 2962 | |
| 2963 | |
| 2964 | void LoadStubCompiler::GenerateLoadViaGetter(MacroAssembler* masm, |
| 2965 | Handle<JSFunction> getter) { |
| 2966 | // ----------- S t a t e ------------- |
| 2967 | // -- a0 : receiver |
| 2968 | // -- a2 : name |
| 2969 | // -- ra : return address |
| 2970 | // ----------------------------------- |
| 2971 | { |
| 2972 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 2973 | |
| 2974 | if (!getter.is_null()) { |
| 2975 | // Call the JavaScript getter with the receiver on the stack. |
| 2976 | __ push(a0); |
| 2977 | ParameterCount actual(0); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 2978 | ParameterCount expected(getter); |
| 2979 | __ InvokeFunction(getter, expected, actual, |
| 2980 | CALL_FUNCTION, NullCallWrapper(), CALL_AS_METHOD); |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 2981 | } else { |
| 2982 | // If we generate a global code snippet for deoptimization only, remember |
| 2983 | // the place to continue after deoptimization. |
| 2984 | masm->isolate()->heap()->SetGetterStubDeoptPCOffset(masm->pc_offset()); |
| 2985 | } |
| 2986 | |
| 2987 | // Restore context register. |
| 2988 | __ lw(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
| 2989 | } |
| 2990 | __ Ret(); |
| 2991 | } |
| 2992 | |
| 2993 | |
| 2994 | #undef __ |
| 2995 | #define __ ACCESS_MASM(masm()) |
| 2996 | |
| 2997 | |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 2998 | Handle<Code> LoadStubCompiler::CompileLoadGlobal( |
| 2999 | Handle<JSObject> object, |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 3000 | Handle<GlobalObject> global, |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3001 | Handle<JSGlobalPropertyCell> cell, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 3002 | Handle<Name> name, |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3003 | bool is_dont_delete) { |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 3004 | Label success, miss; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3005 | |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 3006 | __ CheckMap( |
| 3007 | receiver(), scratch1(), Handle<Map>(object->map()), &miss, DO_SMI_CHECK); |
| 3008 | HandlerFrontendHeader( |
| 3009 | object, receiver(), Handle<JSObject>::cast(global), name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3010 | |
| 3011 | // Get the value from the cell. |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3012 | __ li(a3, Operand(cell)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3013 | __ lw(t0, FieldMemOperand(a3, JSGlobalPropertyCell::kValueOffset)); |
| 3014 | |
| 3015 | // Check for deleted property if property can actually be deleted. |
| 3016 | if (!is_dont_delete) { |
| 3017 | __ LoadRoot(at, Heap::kTheHoleValueRootIndex); |
| 3018 | __ Branch(&miss, eq, t0, Operand(at)); |
| 3019 | } |
| 3020 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 3021 | HandlerFrontendFooter(&success, &miss); |
| 3022 | __ bind(&success); |
| 3023 | |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 3024 | Counters* counters = isolate()->counters(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3025 | __ IncrementCounter(counters->named_load_global_stub(), 1, a1, a3); |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 3026 | __ mov(v0, t0); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3027 | __ Ret(); |
| 3028 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3029 | // Return the generated code. |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 3030 | return GetICCode(kind(), Code::NORMAL, name); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3031 | } |
| 3032 | |
| 3033 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 3034 | Handle<Code> BaseLoadStubCompiler::CompilePolymorphicIC( |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3035 | MapHandleList* receiver_maps, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 3036 | CodeHandleList* handlers, |
| 3037 | Handle<Name> name, |
| 3038 | Code::StubType type, |
| 3039 | IcCheckType check) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3040 | Label miss; |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 3041 | |
| 3042 | if (check == PROPERTY) { |
| 3043 | GenerateNameCheck(name, this->name(), &miss); |
| 3044 | } |
| 3045 | |
| 3046 | __ JumpIfSmi(receiver(), &miss); |
| 3047 | Register map_reg = scratch1(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3048 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3049 | int receiver_count = receiver_maps->length(); |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 3050 | int number_of_handled_maps = 0; |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 3051 | __ lw(map_reg, FieldMemOperand(receiver(), HeapObject::kMapOffset)); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3052 | for (int current = 0; current < receiver_count; ++current) { |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 3053 | Handle<Map> map = receiver_maps->at(current); |
| 3054 | if (!map->is_deprecated()) { |
| 3055 | number_of_handled_maps++; |
| 3056 | __ Jump(handlers->at(current), RelocInfo::CODE_TARGET, |
| 3057 | eq, map_reg, Operand(receiver_maps->at(current))); |
| 3058 | } |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3059 | } |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 3060 | ASSERT(number_of_handled_maps != 0); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3061 | |
| 3062 | __ bind(&miss); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3063 | TailCallBuiltin(masm(), MissBuiltin(kind())); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3064 | |
| 3065 | // Return the generated code. |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 3066 | InlineCacheState state = |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 3067 | number_of_handled_maps > 1 ? POLYMORPHIC : MONOMORPHIC; |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 3068 | return GetICCode(kind(), type, name, state); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3069 | } |
| 3070 | |
| 3071 | |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3072 | Handle<Code> KeyedStoreStubCompiler::CompileStorePolymorphic( |
| 3073 | MapHandleList* receiver_maps, |
| 3074 | CodeHandleList* handler_stubs, |
| 3075 | MapHandleList* transitioned_maps) { |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3076 | Label miss; |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 3077 | __ JumpIfSmi(receiver(), &miss); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3078 | |
| 3079 | int receiver_count = receiver_maps->length(); |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 3080 | __ lw(scratch1(), FieldMemOperand(receiver(), HeapObject::kMapOffset)); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3081 | for (int i = 0; i < receiver_count; ++i) { |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3082 | if (transitioned_maps->at(i).is_null()) { |
| 3083 | __ Jump(handler_stubs->at(i), RelocInfo::CODE_TARGET, eq, |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 3084 | scratch1(), Operand(receiver_maps->at(i))); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3085 | } else { |
| 3086 | Label next_map; |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 3087 | __ Branch(&next_map, ne, scratch1(), Operand(receiver_maps->at(i))); |
| 3088 | __ li(transition_map(), Operand(transitioned_maps->at(i))); |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3089 | __ Jump(handler_stubs->at(i), RelocInfo::CODE_TARGET); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3090 | __ bind(&next_map); |
| 3091 | } |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3092 | } |
| 3093 | |
| 3094 | __ bind(&miss); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3095 | TailCallBuiltin(masm(), MissBuiltin(kind())); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3096 | |
| 3097 | // Return the generated code. |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3098 | return GetICCode( |
| 3099 | kind(), Code::NORMAL, factory()->empty_string(), POLYMORPHIC); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3100 | } |
| 3101 | |
| 3102 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3103 | Handle<Code> ConstructStubCompiler::CompileConstructStub( |
| 3104 | Handle<JSFunction> function) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3105 | // a0 : argc |
| 3106 | // a1 : constructor |
| 3107 | // ra : return address |
| 3108 | // [sp] : last argument |
| 3109 | Label generic_stub_call; |
| 3110 | |
| 3111 | // Use t7 for holding undefined which is used in several places below. |
| 3112 | __ LoadRoot(t7, Heap::kUndefinedValueRootIndex); |
| 3113 | |
| 3114 | #ifdef ENABLE_DEBUGGER_SUPPORT |
| 3115 | // Check to see whether there are any break points in the function code. If |
| 3116 | // there are jump to the generic constructor stub which calls the actual |
| 3117 | // code for the function thereby hitting the break points. |
| 3118 | __ lw(t5, FieldMemOperand(a1, JSFunction::kSharedFunctionInfoOffset)); |
| 3119 | __ lw(a2, FieldMemOperand(t5, SharedFunctionInfo::kDebugInfoOffset)); |
| 3120 | __ Branch(&generic_stub_call, ne, a2, Operand(t7)); |
| 3121 | #endif |
| 3122 | |
| 3123 | // Load the initial map and verify that it is in fact a map. |
| 3124 | // a1: constructor function |
| 3125 | // t7: undefined |
| 3126 | __ lw(a2, FieldMemOperand(a1, JSFunction::kPrototypeOrInitialMapOffset)); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3127 | __ JumpIfSmi(a2, &generic_stub_call); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3128 | __ GetObjectType(a2, a3, t0); |
| 3129 | __ Branch(&generic_stub_call, ne, t0, Operand(MAP_TYPE)); |
| 3130 | |
| 3131 | #ifdef DEBUG |
| 3132 | // Cannot construct functions this way. |
| 3133 | // a0: argc |
| 3134 | // a1: constructor function |
| 3135 | // a2: initial map |
| 3136 | // t7: undefined |
| 3137 | __ lbu(a3, FieldMemOperand(a2, Map::kInstanceTypeOffset)); |
| 3138 | __ Check(ne, "Function constructed by construct stub.", |
mvstanton@chromium.org | e4ac3ef | 2012-11-12 14:53:34 +0000 | [diff] [blame] | 3139 | a3, Operand(JS_FUNCTION_TYPE)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3140 | #endif |
| 3141 | |
| 3142 | // Now allocate the JSObject in new space. |
| 3143 | // a0: argc |
| 3144 | // a1: constructor function |
| 3145 | // a2: initial map |
| 3146 | // t7: undefined |
mvstanton@chromium.org | e4ac3ef | 2012-11-12 14:53:34 +0000 | [diff] [blame] | 3147 | ASSERT(function->has_initial_map()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3148 | __ lbu(a3, FieldMemOperand(a2, Map::kInstanceSizeOffset)); |
mvstanton@chromium.org | e4ac3ef | 2012-11-12 14:53:34 +0000 | [diff] [blame] | 3149 | #ifdef DEBUG |
| 3150 | int instance_size = function->initial_map()->instance_size(); |
| 3151 | __ Check(eq, "Instance size of initial map changed.", |
| 3152 | a3, Operand(instance_size >> kPointerSizeLog2)); |
| 3153 | #endif |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 3154 | __ Allocate(a3, t4, t5, t6, &generic_stub_call, SIZE_IN_WORDS); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3155 | |
| 3156 | // Allocated the JSObject, now initialize the fields. Map is set to initial |
| 3157 | // map and properties and elements are set to empty fixed array. |
| 3158 | // a0: argc |
| 3159 | // a1: constructor function |
| 3160 | // a2: initial map |
| 3161 | // a3: object size (in words) |
| 3162 | // t4: JSObject (not tagged) |
| 3163 | // t7: undefined |
| 3164 | __ LoadRoot(t6, Heap::kEmptyFixedArrayRootIndex); |
| 3165 | __ mov(t5, t4); |
| 3166 | __ sw(a2, MemOperand(t5, JSObject::kMapOffset)); |
| 3167 | __ sw(t6, MemOperand(t5, JSObject::kPropertiesOffset)); |
| 3168 | __ sw(t6, MemOperand(t5, JSObject::kElementsOffset)); |
| 3169 | __ Addu(t5, t5, Operand(3 * kPointerSize)); |
| 3170 | ASSERT_EQ(0 * kPointerSize, JSObject::kMapOffset); |
| 3171 | ASSERT_EQ(1 * kPointerSize, JSObject::kPropertiesOffset); |
| 3172 | ASSERT_EQ(2 * kPointerSize, JSObject::kElementsOffset); |
| 3173 | |
| 3174 | |
| 3175 | // Calculate the location of the first argument. The stack contains only the |
| 3176 | // argc arguments. |
| 3177 | __ sll(a1, a0, kPointerSizeLog2); |
| 3178 | __ Addu(a1, a1, sp); |
| 3179 | |
| 3180 | // Fill all the in-object properties with undefined. |
| 3181 | // a0: argc |
| 3182 | // a1: first argument |
| 3183 | // a3: object size (in words) |
| 3184 | // t4: JSObject (not tagged) |
| 3185 | // t5: First in-object property of JSObject (not tagged) |
| 3186 | // t7: undefined |
| 3187 | // Fill the initialized properties with a constant value or a passed argument |
| 3188 | // depending on the this.x = ...; assignment in the function. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3189 | Handle<SharedFunctionInfo> shared(function->shared()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3190 | for (int i = 0; i < shared->this_property_assignments_count(); i++) { |
| 3191 | if (shared->IsThisPropertyAssignmentArgument(i)) { |
| 3192 | Label not_passed, next; |
| 3193 | // Check if the argument assigned to the property is actually passed. |
| 3194 | int arg_number = shared->GetThisPropertyAssignmentArgument(i); |
| 3195 | __ Branch(¬_passed, less_equal, a0, Operand(arg_number)); |
| 3196 | // Argument passed - find it on the stack. |
| 3197 | __ lw(a2, MemOperand(a1, (arg_number + 1) * -kPointerSize)); |
| 3198 | __ sw(a2, MemOperand(t5)); |
| 3199 | __ Addu(t5, t5, kPointerSize); |
| 3200 | __ jmp(&next); |
| 3201 | __ bind(¬_passed); |
| 3202 | // Set the property to undefined. |
| 3203 | __ sw(t7, MemOperand(t5)); |
| 3204 | __ Addu(t5, t5, Operand(kPointerSize)); |
| 3205 | __ bind(&next); |
| 3206 | } else { |
| 3207 | // Set the property to the constant value. |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 3208 | Handle<Object> constant( |
| 3209 | shared->GetThisPropertyAssignmentConstant(i), isolate()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3210 | __ li(a2, Operand(constant)); |
| 3211 | __ sw(a2, MemOperand(t5)); |
| 3212 | __ Addu(t5, t5, kPointerSize); |
| 3213 | } |
| 3214 | } |
| 3215 | |
| 3216 | // Fill the unused in-object property fields with undefined. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3217 | for (int i = shared->this_property_assignments_count(); |
| 3218 | i < function->initial_map()->inobject_properties(); |
| 3219 | i++) { |
| 3220 | __ sw(t7, MemOperand(t5)); |
| 3221 | __ Addu(t5, t5, kPointerSize); |
| 3222 | } |
| 3223 | |
| 3224 | // a0: argc |
| 3225 | // t4: JSObject (not tagged) |
| 3226 | // Move argc to a1 and the JSObject to return to v0 and tag it. |
| 3227 | __ mov(a1, a0); |
| 3228 | __ mov(v0, t4); |
| 3229 | __ Or(v0, v0, Operand(kHeapObjectTag)); |
| 3230 | |
| 3231 | // v0: JSObject |
| 3232 | // a1: argc |
| 3233 | // Remove caller arguments and receiver from the stack and return. |
| 3234 | __ sll(t0, a1, kPointerSizeLog2); |
| 3235 | __ Addu(sp, sp, t0); |
| 3236 | __ Addu(sp, sp, Operand(kPointerSize)); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 3237 | Counters* counters = isolate()->counters(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3238 | __ IncrementCounter(counters->constructed_objects(), 1, a1, a2); |
| 3239 | __ IncrementCounter(counters->constructed_objects_stub(), 1, a1, a2); |
| 3240 | __ Ret(); |
| 3241 | |
| 3242 | // Jump to the generic stub in case the specialized code cannot handle the |
| 3243 | // construction. |
| 3244 | __ bind(&generic_stub_call); |
| 3245 | Handle<Code> generic_construct_stub = |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 3246 | isolate()->builtins()->JSConstructStubGeneric(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3247 | __ Jump(generic_construct_stub, RelocInfo::CODE_TARGET); |
| 3248 | |
| 3249 | // Return the generated code. |
| 3250 | return GetCode(); |
| 3251 | } |
| 3252 | |
| 3253 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3254 | #undef __ |
| 3255 | #define __ ACCESS_MASM(masm) |
| 3256 | |
| 3257 | |
sgjesse@chromium.org | 6db8871 | 2011-07-11 11:41:22 +0000 | [diff] [blame] | 3258 | void KeyedLoadStubCompiler::GenerateLoadDictionaryElement( |
| 3259 | MacroAssembler* masm) { |
| 3260 | // ---------- S t a t e -------------- |
| 3261 | // -- ra : return address |
| 3262 | // -- a0 : key |
| 3263 | // -- a1 : receiver |
| 3264 | // ----------------------------------- |
| 3265 | Label slow, miss_force_generic; |
| 3266 | |
| 3267 | Register key = a0; |
| 3268 | Register receiver = a1; |
| 3269 | |
| 3270 | __ JumpIfNotSmi(key, &miss_force_generic); |
| 3271 | __ lw(t0, FieldMemOperand(receiver, JSObject::kElementsOffset)); |
| 3272 | __ sra(a2, a0, kSmiTagSize); |
| 3273 | __ LoadFromNumberDictionary(&slow, t0, a0, v0, a2, a3, t1); |
| 3274 | __ Ret(); |
| 3275 | |
| 3276 | // Slow case, key and receiver still in a0 and a1. |
| 3277 | __ bind(&slow); |
| 3278 | __ IncrementCounter( |
| 3279 | masm->isolate()->counters()->keyed_load_external_array_slow(), |
| 3280 | 1, a2, a3); |
| 3281 | // Entry registers are intact. |
| 3282 | // ---------- S t a t e -------------- |
| 3283 | // -- ra : return address |
| 3284 | // -- a0 : key |
| 3285 | // -- a1 : receiver |
| 3286 | // ----------------------------------- |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3287 | TailCallBuiltin(masm, Builtins::kKeyedLoadIC_Slow); |
sgjesse@chromium.org | 6db8871 | 2011-07-11 11:41:22 +0000 | [diff] [blame] | 3288 | |
| 3289 | // Miss case, call the runtime. |
| 3290 | __ bind(&miss_force_generic); |
| 3291 | |
| 3292 | // ---------- S t a t e -------------- |
| 3293 | // -- ra : return address |
| 3294 | // -- a0 : key |
| 3295 | // -- a1 : receiver |
| 3296 | // ----------------------------------- |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3297 | TailCallBuiltin(masm, Builtins::kKeyedLoadIC_MissForceGeneric); |
sgjesse@chromium.org | 6db8871 | 2011-07-11 11:41:22 +0000 | [diff] [blame] | 3298 | } |
| 3299 | |
| 3300 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 3301 | static void GenerateSmiKeyCheck(MacroAssembler* masm, |
| 3302 | Register key, |
| 3303 | Register scratch0, |
| 3304 | Register scratch1, |
| 3305 | FPURegister double_scratch0, |
svenpanne@chromium.org | 83130cf | 2012-11-30 10:13:25 +0000 | [diff] [blame] | 3306 | FPURegister double_scratch1, |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 3307 | Label* fail) { |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3308 | Label key_ok; |
| 3309 | // Check for smi or a smi inside a heap number. We convert the heap |
| 3310 | // number and check if the conversion is exact and fits into the smi |
| 3311 | // range. |
| 3312 | __ JumpIfSmi(key, &key_ok); |
| 3313 | __ CheckMap(key, |
| 3314 | scratch0, |
| 3315 | Heap::kHeapNumberMapRootIndex, |
| 3316 | fail, |
| 3317 | DONT_DO_SMI_CHECK); |
| 3318 | __ ldc1(double_scratch0, FieldMemOperand(key, HeapNumber::kValueOffset)); |
| 3319 | __ EmitFPUTruncate(kRoundToZero, |
| 3320 | scratch0, |
| 3321 | double_scratch0, |
| 3322 | at, |
| 3323 | double_scratch1, |
| 3324 | scratch1, |
| 3325 | kCheckForInexactConversion); |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 3326 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3327 | __ Branch(fail, ne, scratch1, Operand(zero_reg)); |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 3328 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3329 | __ SmiTagCheckOverflow(key, scratch0, scratch1); |
| 3330 | __ BranchOnOverflow(fail, scratch1); |
| 3331 | __ bind(&key_ok); |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 3332 | } |
| 3333 | |
| 3334 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3335 | void KeyedStoreStubCompiler::GenerateStoreExternalArray( |
| 3336 | MacroAssembler* masm, |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3337 | ElementsKind elements_kind) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3338 | // ---------- S t a t e -------------- |
| 3339 | // -- a0 : value |
| 3340 | // -- a1 : key |
| 3341 | // -- a2 : receiver |
| 3342 | // -- ra : return address |
| 3343 | // ----------------------------------- |
| 3344 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3345 | Label slow, check_heap_number, miss_force_generic; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3346 | |
| 3347 | // Register usage. |
| 3348 | Register value = a0; |
| 3349 | Register key = a1; |
| 3350 | Register receiver = a2; |
| 3351 | // a3 mostly holds the elements array or the destination external array. |
| 3352 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3353 | // This stub is meant to be tail-jumped to, the receiver must already |
| 3354 | // have been verified by the caller to not be a smi. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3355 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 3356 | // Check that the key is a smi or a heap number convertible to a smi. |
svenpanne@chromium.org | 83130cf | 2012-11-30 10:13:25 +0000 | [diff] [blame] | 3357 | GenerateSmiKeyCheck(masm, key, t0, t1, f2, f4, &miss_force_generic); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3358 | |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 3359 | __ lw(a3, FieldMemOperand(receiver, JSObject::kElementsOffset)); |
| 3360 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3361 | // Check that the index is in range. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3362 | __ lw(t1, FieldMemOperand(a3, ExternalArray::kLengthOffset)); |
| 3363 | // Unsigned comparison catches both negative and too-large values. |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 3364 | __ Branch(&miss_force_generic, Ugreater_equal, key, Operand(t1)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3365 | |
| 3366 | // Handle both smis and HeapNumbers in the fast path. Go to the |
| 3367 | // runtime for all other kinds of values. |
| 3368 | // a3: external array. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3369 | |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3370 | if (elements_kind == EXTERNAL_PIXEL_ELEMENTS) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3371 | // Double to pixel conversion is only implemented in the runtime for now. |
| 3372 | __ JumpIfNotSmi(value, &slow); |
| 3373 | } else { |
| 3374 | __ JumpIfNotSmi(value, &check_heap_number); |
| 3375 | } |
| 3376 | __ SmiUntag(t1, value); |
| 3377 | __ lw(a3, FieldMemOperand(a3, ExternalArray::kExternalPointerOffset)); |
| 3378 | |
| 3379 | // a3: base pointer of external storage. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3380 | // t1: value (integer). |
| 3381 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 3382 | switch (elements_kind) { |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3383 | case EXTERNAL_PIXEL_ELEMENTS: { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3384 | // Clamp the value to [0..255]. |
| 3385 | // v0 is used as a scratch register here. |
| 3386 | Label done; |
| 3387 | __ li(v0, Operand(255)); |
| 3388 | // Normal branch: nop in delay slot. |
| 3389 | __ Branch(&done, gt, t1, Operand(v0)); |
| 3390 | // Use delay slot in this branch. |
| 3391 | __ Branch(USE_DELAY_SLOT, &done, lt, t1, Operand(zero_reg)); |
| 3392 | __ mov(v0, zero_reg); // In delay slot. |
| 3393 | __ mov(v0, t1); // Value is in range 0..255. |
| 3394 | __ bind(&done); |
| 3395 | __ mov(t1, v0); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3396 | |
| 3397 | __ srl(t8, key, 1); |
| 3398 | __ addu(t8, a3, t8); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3399 | __ sb(t1, MemOperand(t8, 0)); |
| 3400 | } |
| 3401 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3402 | case EXTERNAL_BYTE_ELEMENTS: |
| 3403 | case EXTERNAL_UNSIGNED_BYTE_ELEMENTS: |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3404 | __ srl(t8, key, 1); |
| 3405 | __ addu(t8, a3, t8); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3406 | __ sb(t1, MemOperand(t8, 0)); |
| 3407 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3408 | case EXTERNAL_SHORT_ELEMENTS: |
| 3409 | case EXTERNAL_UNSIGNED_SHORT_ELEMENTS: |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3410 | __ addu(t8, a3, key); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3411 | __ sh(t1, MemOperand(t8, 0)); |
| 3412 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3413 | case EXTERNAL_INT_ELEMENTS: |
| 3414 | case EXTERNAL_UNSIGNED_INT_ELEMENTS: |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3415 | __ sll(t8, key, 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3416 | __ addu(t8, a3, t8); |
| 3417 | __ sw(t1, MemOperand(t8, 0)); |
| 3418 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3419 | case EXTERNAL_FLOAT_ELEMENTS: |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3420 | // Perform int-to-float conversion and store to memory. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3421 | __ SmiUntag(t0, key); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3422 | StoreIntAsFloat(masm, a3, t0, t1, t2); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3423 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3424 | case EXTERNAL_DOUBLE_ELEMENTS: |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3425 | __ sll(t8, key, 2); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3426 | __ addu(a3, a3, t8); |
| 3427 | // a3: effective address of the double element |
| 3428 | FloatingPointHelper::Destination destination; |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3429 | destination = FloatingPointHelper::kFPURegisters; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3430 | FloatingPointHelper::ConvertIntToDouble( |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3431 | masm, t1, destination, |
svenpanne@chromium.org | 83130cf | 2012-11-30 10:13:25 +0000 | [diff] [blame] | 3432 | f0, t2, t3, // These are: double_dst, dst_mantissa, dst_exponent. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3433 | t0, f2); // These are: scratch2, single_scratch. |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3434 | __ sdc1(f0, MemOperand(a3, 0)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3435 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3436 | case FAST_ELEMENTS: |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 3437 | case FAST_SMI_ELEMENTS: |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3438 | case FAST_DOUBLE_ELEMENTS: |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 3439 | case FAST_HOLEY_ELEMENTS: |
| 3440 | case FAST_HOLEY_SMI_ELEMENTS: |
| 3441 | case FAST_HOLEY_DOUBLE_ELEMENTS: |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3442 | case DICTIONARY_ELEMENTS: |
| 3443 | case NON_STRICT_ARGUMENTS_ELEMENTS: |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3444 | UNREACHABLE(); |
| 3445 | break; |
| 3446 | } |
| 3447 | |
| 3448 | // Entry registers are intact, a0 holds the value which is the return value. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3449 | __ mov(v0, a0); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3450 | __ Ret(); |
| 3451 | |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3452 | if (elements_kind != EXTERNAL_PIXEL_ELEMENTS) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3453 | // a3: external array. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3454 | __ bind(&check_heap_number); |
| 3455 | __ GetObjectType(value, t1, t2); |
| 3456 | __ Branch(&slow, ne, t2, Operand(HEAP_NUMBER_TYPE)); |
| 3457 | |
| 3458 | __ lw(a3, FieldMemOperand(a3, ExternalArray::kExternalPointerOffset)); |
| 3459 | |
| 3460 | // a3: base pointer of external storage. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3461 | |
| 3462 | // The WebGL specification leaves the behavior of storing NaN and |
| 3463 | // +/-Infinity into integer arrays basically undefined. For more |
| 3464 | // reproducible behavior, convert these to zero. |
| 3465 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3466 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3467 | __ ldc1(f0, FieldMemOperand(a0, HeapNumber::kValueOffset)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3468 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3469 | if (elements_kind == EXTERNAL_FLOAT_ELEMENTS) { |
| 3470 | __ cvt_s_d(f0, f0); |
| 3471 | __ sll(t8, key, 1); |
| 3472 | __ addu(t8, a3, t8); |
| 3473 | __ swc1(f0, MemOperand(t8, 0)); |
| 3474 | } else if (elements_kind == EXTERNAL_DOUBLE_ELEMENTS) { |
| 3475 | __ sll(t8, key, 2); |
| 3476 | __ addu(t8, a3, t8); |
| 3477 | __ sdc1(f0, MemOperand(t8, 0)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3478 | } else { |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3479 | __ EmitECMATruncate(t3, f0, f2, t2, t1, t5); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3480 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3481 | switch (elements_kind) { |
| 3482 | case EXTERNAL_BYTE_ELEMENTS: |
| 3483 | case EXTERNAL_UNSIGNED_BYTE_ELEMENTS: |
| 3484 | __ srl(t8, key, 1); |
| 3485 | __ addu(t8, a3, t8); |
| 3486 | __ sb(t3, MemOperand(t8, 0)); |
| 3487 | break; |
| 3488 | case EXTERNAL_SHORT_ELEMENTS: |
| 3489 | case EXTERNAL_UNSIGNED_SHORT_ELEMENTS: |
| 3490 | __ addu(t8, a3, key); |
| 3491 | __ sh(t3, MemOperand(t8, 0)); |
| 3492 | break; |
| 3493 | case EXTERNAL_INT_ELEMENTS: |
| 3494 | case EXTERNAL_UNSIGNED_INT_ELEMENTS: |
| 3495 | __ sll(t8, key, 1); |
| 3496 | __ addu(t8, a3, t8); |
| 3497 | __ sw(t3, MemOperand(t8, 0)); |
| 3498 | break; |
| 3499 | case EXTERNAL_PIXEL_ELEMENTS: |
| 3500 | case EXTERNAL_FLOAT_ELEMENTS: |
| 3501 | case EXTERNAL_DOUBLE_ELEMENTS: |
| 3502 | case FAST_ELEMENTS: |
| 3503 | case FAST_SMI_ELEMENTS: |
| 3504 | case FAST_DOUBLE_ELEMENTS: |
| 3505 | case FAST_HOLEY_ELEMENTS: |
| 3506 | case FAST_HOLEY_SMI_ELEMENTS: |
| 3507 | case FAST_HOLEY_DOUBLE_ELEMENTS: |
| 3508 | case DICTIONARY_ELEMENTS: |
| 3509 | case NON_STRICT_ARGUMENTS_ELEMENTS: |
| 3510 | UNREACHABLE(); |
| 3511 | break; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3512 | } |
| 3513 | } |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3514 | |
| 3515 | // Entry registers are intact, a0 holds the value |
| 3516 | // which is the return value. |
| 3517 | __ mov(v0, a0); |
| 3518 | __ Ret(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3519 | } |
| 3520 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3521 | // Slow case, key and receiver still in a0 and a1. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3522 | __ bind(&slow); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3523 | __ IncrementCounter( |
| 3524 | masm->isolate()->counters()->keyed_load_external_array_slow(), |
| 3525 | 1, a2, a3); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3526 | // Entry registers are intact. |
| 3527 | // ---------- S t a t e -------------- |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3528 | // -- ra : return address |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3529 | // -- a0 : key |
| 3530 | // -- a1 : receiver |
| 3531 | // ----------------------------------- |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3532 | TailCallBuiltin(masm, Builtins::kKeyedStoreIC_Slow); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3533 | |
| 3534 | // Miss case, call the runtime. |
| 3535 | __ bind(&miss_force_generic); |
| 3536 | |
| 3537 | // ---------- S t a t e -------------- |
| 3538 | // -- ra : return address |
| 3539 | // -- a0 : key |
| 3540 | // -- a1 : receiver |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3541 | // ----------------------------------- |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3542 | TailCallBuiltin(masm, Builtins::kKeyedStoreIC_MissForceGeneric); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3543 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3544 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3545 | |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3546 | void KeyedStoreStubCompiler::GenerateStoreFastElement( |
| 3547 | MacroAssembler* masm, |
| 3548 | bool is_js_array, |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3549 | ElementsKind elements_kind, |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 3550 | KeyedAccessStoreMode store_mode) { |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3551 | // ----------- S t a t e ------------- |
| 3552 | // -- a0 : value |
| 3553 | // -- a1 : key |
| 3554 | // -- a2 : receiver |
| 3555 | // -- ra : return address |
| 3556 | // -- a3 : scratch |
| 3557 | // -- a4 : scratch (elements) |
| 3558 | // ----------------------------------- |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3559 | Label miss_force_generic, transition_elements_kind, grow, slow; |
| 3560 | Label finish_store, check_capacity; |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3561 | |
| 3562 | Register value_reg = a0; |
| 3563 | Register key_reg = a1; |
| 3564 | Register receiver_reg = a2; |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3565 | Register scratch = t0; |
| 3566 | Register elements_reg = a3; |
| 3567 | Register length_reg = t1; |
| 3568 | Register scratch2 = t2; |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3569 | |
| 3570 | // This stub is meant to be tail-jumped to, the receiver must already |
| 3571 | // have been verified by the caller to not be a smi. |
| 3572 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 3573 | // Check that the key is a smi or a heap number convertible to a smi. |
svenpanne@chromium.org | 83130cf | 2012-11-30 10:13:25 +0000 | [diff] [blame] | 3574 | GenerateSmiKeyCheck(masm, key_reg, t0, t1, f2, f4, &miss_force_generic); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3575 | |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 3576 | if (IsFastSmiElementsKind(elements_kind)) { |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3577 | __ JumpIfNotSmi(value_reg, &transition_elements_kind); |
| 3578 | } |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3579 | |
| 3580 | // Check that the key is within bounds. |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3581 | __ lw(elements_reg, |
| 3582 | FieldMemOperand(receiver_reg, JSObject::kElementsOffset)); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3583 | if (is_js_array) { |
| 3584 | __ lw(scratch, FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); |
| 3585 | } else { |
| 3586 | __ lw(scratch, FieldMemOperand(elements_reg, FixedArray::kLengthOffset)); |
| 3587 | } |
| 3588 | // Compare smis. |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 3589 | if (is_js_array && IsGrowStoreMode(store_mode)) { |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3590 | __ Branch(&grow, hs, key_reg, Operand(scratch)); |
| 3591 | } else { |
| 3592 | __ Branch(&miss_force_generic, hs, key_reg, Operand(scratch)); |
| 3593 | } |
| 3594 | |
| 3595 | // Make sure elements is a fast element array, not 'cow'. |
| 3596 | __ CheckMap(elements_reg, |
| 3597 | scratch, |
| 3598 | Heap::kFixedArrayMapRootIndex, |
| 3599 | &miss_force_generic, |
| 3600 | DONT_DO_SMI_CHECK); |
| 3601 | |
| 3602 | __ bind(&finish_store); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3603 | |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 3604 | if (IsFastSmiElementsKind(elements_kind)) { |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3605 | __ Addu(scratch, |
| 3606 | elements_reg, |
| 3607 | Operand(FixedArray::kHeaderSize - kHeapObjectTag)); |
| 3608 | STATIC_ASSERT(kSmiTag == 0 && kSmiTagSize < kPointerSizeLog2); |
| 3609 | __ sll(scratch2, key_reg, kPointerSizeLog2 - kSmiTagSize); |
| 3610 | __ Addu(scratch, scratch, scratch2); |
| 3611 | __ sw(value_reg, MemOperand(scratch)); |
| 3612 | } else { |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 3613 | ASSERT(IsFastObjectElementsKind(elements_kind)); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3614 | __ Addu(scratch, |
| 3615 | elements_reg, |
| 3616 | Operand(FixedArray::kHeaderSize - kHeapObjectTag)); |
| 3617 | STATIC_ASSERT(kSmiTag == 0 && kSmiTagSize < kPointerSizeLog2); |
| 3618 | __ sll(scratch2, key_reg, kPointerSizeLog2 - kSmiTagSize); |
| 3619 | __ Addu(scratch, scratch, scratch2); |
| 3620 | __ sw(value_reg, MemOperand(scratch)); |
| 3621 | __ mov(receiver_reg, value_reg); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3622 | __ RecordWrite(elements_reg, // Object. |
| 3623 | scratch, // Address. |
| 3624 | receiver_reg, // Value. |
| 3625 | kRAHasNotBeenSaved, |
| 3626 | kDontSaveFPRegs); |
| 3627 | } |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3628 | // value_reg (a0) is preserved. |
| 3629 | // Done. |
| 3630 | __ Ret(); |
| 3631 | |
| 3632 | __ bind(&miss_force_generic); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3633 | TailCallBuiltin(masm, Builtins::kKeyedStoreIC_MissForceGeneric); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3634 | |
| 3635 | __ bind(&transition_elements_kind); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3636 | TailCallBuiltin(masm, Builtins::kKeyedStoreIC_Miss); |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3637 | |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 3638 | if (is_js_array && IsGrowStoreMode(store_mode)) { |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3639 | // Grow the array by a single element if possible. |
| 3640 | __ bind(&grow); |
| 3641 | |
| 3642 | // Make sure the array is only growing by a single element, anything else |
| 3643 | // must be handled by the runtime. |
| 3644 | __ Branch(&miss_force_generic, ne, key_reg, Operand(scratch)); |
| 3645 | |
| 3646 | // Check for the empty array, and preallocate a small backing store if |
| 3647 | // possible. |
| 3648 | __ lw(length_reg, |
| 3649 | FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); |
| 3650 | __ lw(elements_reg, |
| 3651 | FieldMemOperand(receiver_reg, JSObject::kElementsOffset)); |
| 3652 | __ LoadRoot(at, Heap::kEmptyFixedArrayRootIndex); |
| 3653 | __ Branch(&check_capacity, ne, elements_reg, Operand(at)); |
| 3654 | |
| 3655 | int size = FixedArray::SizeFor(JSArray::kPreallocatedArrayElements); |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 3656 | __ Allocate(size, elements_reg, scratch, scratch2, &slow, TAG_OBJECT); |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3657 | |
| 3658 | __ LoadRoot(scratch, Heap::kFixedArrayMapRootIndex); |
| 3659 | __ sw(scratch, FieldMemOperand(elements_reg, JSObject::kMapOffset)); |
| 3660 | __ li(scratch, Operand(Smi::FromInt(JSArray::kPreallocatedArrayElements))); |
| 3661 | __ sw(scratch, FieldMemOperand(elements_reg, FixedArray::kLengthOffset)); |
| 3662 | __ LoadRoot(scratch, Heap::kTheHoleValueRootIndex); |
| 3663 | for (int i = 1; i < JSArray::kPreallocatedArrayElements; ++i) { |
| 3664 | __ sw(scratch, FieldMemOperand(elements_reg, FixedArray::SizeFor(i))); |
| 3665 | } |
| 3666 | |
| 3667 | // Store the element at index zero. |
| 3668 | __ sw(value_reg, FieldMemOperand(elements_reg, FixedArray::SizeFor(0))); |
| 3669 | |
| 3670 | // Install the new backing store in the JSArray. |
| 3671 | __ sw(elements_reg, |
| 3672 | FieldMemOperand(receiver_reg, JSObject::kElementsOffset)); |
| 3673 | __ RecordWriteField(receiver_reg, JSObject::kElementsOffset, elements_reg, |
| 3674 | scratch, kRAHasNotBeenSaved, kDontSaveFPRegs, |
| 3675 | EMIT_REMEMBERED_SET, OMIT_SMI_CHECK); |
| 3676 | |
| 3677 | // Increment the length of the array. |
| 3678 | __ li(length_reg, Operand(Smi::FromInt(1))); |
| 3679 | __ sw(length_reg, FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); |
| 3680 | __ Ret(); |
| 3681 | |
| 3682 | __ bind(&check_capacity); |
| 3683 | // Check for cow elements, in general they are not handled by this stub |
| 3684 | __ CheckMap(elements_reg, |
| 3685 | scratch, |
| 3686 | Heap::kFixedCOWArrayMapRootIndex, |
| 3687 | &miss_force_generic, |
| 3688 | DONT_DO_SMI_CHECK); |
| 3689 | |
| 3690 | __ lw(scratch, FieldMemOperand(elements_reg, FixedArray::kLengthOffset)); |
| 3691 | __ Branch(&slow, hs, length_reg, Operand(scratch)); |
| 3692 | |
| 3693 | // Grow the array and finish the store. |
| 3694 | __ Addu(length_reg, length_reg, Operand(Smi::FromInt(1))); |
| 3695 | __ sw(length_reg, FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); |
| 3696 | __ jmp(&finish_store); |
| 3697 | |
| 3698 | __ bind(&slow); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3699 | TailCallBuiltin(masm, Builtins::kKeyedStoreIC_Slow); |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3700 | } |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3701 | } |
| 3702 | |
| 3703 | |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 3704 | void KeyedStoreStubCompiler::GenerateStoreFastDoubleElement( |
| 3705 | MacroAssembler* masm, |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3706 | bool is_js_array, |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 3707 | KeyedAccessStoreMode store_mode) { |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 3708 | // ----------- S t a t e ------------- |
| 3709 | // -- a0 : value |
| 3710 | // -- a1 : key |
| 3711 | // -- a2 : receiver |
| 3712 | // -- ra : return address |
svenpanne@chromium.org | 83130cf | 2012-11-30 10:13:25 +0000 | [diff] [blame] | 3713 | // -- a3 : scratch (elements backing store) |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 3714 | // -- t0 : scratch (elements_reg) |
| 3715 | // -- t1 : scratch (mantissa_reg) |
| 3716 | // -- t2 : scratch (exponent_reg) |
| 3717 | // -- t3 : scratch4 |
svenpanne@chromium.org | 83130cf | 2012-11-30 10:13:25 +0000 | [diff] [blame] | 3718 | // -- t4 : scratch |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 3719 | // ----------------------------------- |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3720 | Label miss_force_generic, transition_elements_kind, grow, slow; |
| 3721 | Label finish_store, check_capacity; |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 3722 | |
| 3723 | Register value_reg = a0; |
| 3724 | Register key_reg = a1; |
| 3725 | Register receiver_reg = a2; |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3726 | Register elements_reg = a3; |
| 3727 | Register scratch1 = t0; |
| 3728 | Register scratch2 = t1; |
| 3729 | Register scratch3 = t2; |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 3730 | Register scratch4 = t3; |
svenpanne@chromium.org | 83130cf | 2012-11-30 10:13:25 +0000 | [diff] [blame] | 3731 | Register scratch5 = t4; |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3732 | Register length_reg = t3; |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 3733 | |
| 3734 | // This stub is meant to be tail-jumped to, the receiver must already |
| 3735 | // have been verified by the caller to not be a smi. |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 3736 | |
| 3737 | // Check that the key is a smi or a heap number convertible to a smi. |
svenpanne@chromium.org | 83130cf | 2012-11-30 10:13:25 +0000 | [diff] [blame] | 3738 | GenerateSmiKeyCheck(masm, key_reg, t0, t1, f2, f4, &miss_force_generic); |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 3739 | |
| 3740 | __ lw(elements_reg, |
| 3741 | FieldMemOperand(receiver_reg, JSObject::kElementsOffset)); |
| 3742 | |
| 3743 | // Check that the key is within bounds. |
| 3744 | if (is_js_array) { |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3745 | __ lw(scratch1, FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 3746 | } else { |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3747 | __ lw(scratch1, |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 3748 | FieldMemOperand(elements_reg, FixedArray::kLengthOffset)); |
| 3749 | } |
| 3750 | // Compare smis, unsigned compare catches both negative and out-of-bound |
| 3751 | // indexes. |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 3752 | if (IsGrowStoreMode(store_mode)) { |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3753 | __ Branch(&grow, hs, key_reg, Operand(scratch1)); |
| 3754 | } else { |
| 3755 | __ Branch(&miss_force_generic, hs, key_reg, Operand(scratch1)); |
| 3756 | } |
| 3757 | |
| 3758 | __ bind(&finish_store); |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 3759 | |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3760 | __ StoreNumberToDoubleElements(value_reg, |
| 3761 | key_reg, |
rossberg@chromium.org | 89e18f5 | 2012-10-22 13:09:53 +0000 | [diff] [blame] | 3762 | // All registers after this are overwritten. |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3763 | elements_reg, |
| 3764 | scratch1, |
| 3765 | scratch2, |
| 3766 | scratch3, |
| 3767 | scratch4, |
| 3768 | &transition_elements_kind); |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 3769 | |
ricow@chromium.org | 4668a2c | 2011-08-29 10:41:00 +0000 | [diff] [blame] | 3770 | __ Ret(USE_DELAY_SLOT); |
| 3771 | __ mov(v0, value_reg); // In delay slot. |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 3772 | |
| 3773 | // Handle store cache miss, replacing the ic with the generic stub. |
| 3774 | __ bind(&miss_force_generic); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3775 | TailCallBuiltin(masm, Builtins::kKeyedStoreIC_MissForceGeneric); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3776 | |
| 3777 | __ bind(&transition_elements_kind); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3778 | TailCallBuiltin(masm, Builtins::kKeyedStoreIC_Miss); |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3779 | |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 3780 | if (is_js_array && IsGrowStoreMode(store_mode)) { |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3781 | // Grow the array by a single element if possible. |
| 3782 | __ bind(&grow); |
| 3783 | |
| 3784 | // Make sure the array is only growing by a single element, anything else |
| 3785 | // must be handled by the runtime. |
| 3786 | __ Branch(&miss_force_generic, ne, key_reg, Operand(scratch1)); |
| 3787 | |
| 3788 | // Transition on values that can't be stored in a FixedDoubleArray. |
| 3789 | Label value_is_smi; |
| 3790 | __ JumpIfSmi(value_reg, &value_is_smi); |
| 3791 | __ lw(scratch1, FieldMemOperand(value_reg, HeapObject::kMapOffset)); |
| 3792 | __ LoadRoot(at, Heap::kHeapNumberMapRootIndex); |
| 3793 | __ Branch(&transition_elements_kind, ne, scratch1, Operand(at)); |
| 3794 | __ bind(&value_is_smi); |
| 3795 | |
| 3796 | // Check for the empty array, and preallocate a small backing store if |
| 3797 | // possible. |
| 3798 | __ lw(length_reg, |
| 3799 | FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); |
| 3800 | __ lw(elements_reg, |
| 3801 | FieldMemOperand(receiver_reg, JSObject::kElementsOffset)); |
| 3802 | __ LoadRoot(at, Heap::kEmptyFixedArrayRootIndex); |
| 3803 | __ Branch(&check_capacity, ne, elements_reg, Operand(at)); |
| 3804 | |
| 3805 | int size = FixedDoubleArray::SizeFor(JSArray::kPreallocatedArrayElements); |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 3806 | __ Allocate(size, elements_reg, scratch1, scratch2, &slow, TAG_OBJECT); |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3807 | |
svenpanne@chromium.org | 83130cf | 2012-11-30 10:13:25 +0000 | [diff] [blame] | 3808 | // Initialize the new FixedDoubleArray. |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3809 | __ LoadRoot(scratch1, Heap::kFixedDoubleArrayMapRootIndex); |
| 3810 | __ sw(scratch1, FieldMemOperand(elements_reg, JSObject::kMapOffset)); |
| 3811 | __ li(scratch1, Operand(Smi::FromInt(JSArray::kPreallocatedArrayElements))); |
| 3812 | __ sw(scratch1, |
| 3813 | FieldMemOperand(elements_reg, FixedDoubleArray::kLengthOffset)); |
| 3814 | |
svenpanne@chromium.org | 83130cf | 2012-11-30 10:13:25 +0000 | [diff] [blame] | 3815 | __ mov(scratch1, elements_reg); |
| 3816 | __ StoreNumberToDoubleElements(value_reg, |
| 3817 | key_reg, |
| 3818 | // All registers after this are overwritten. |
| 3819 | scratch1, |
| 3820 | scratch2, |
| 3821 | scratch3, |
| 3822 | scratch4, |
| 3823 | scratch5, |
| 3824 | &transition_elements_kind); |
| 3825 | |
| 3826 | __ li(scratch1, Operand(kHoleNanLower32)); |
| 3827 | __ li(scratch2, Operand(kHoleNanUpper32)); |
| 3828 | for (int i = 1; i < JSArray::kPreallocatedArrayElements; i++) { |
| 3829 | int offset = FixedDoubleArray::OffsetOfElementAt(i); |
| 3830 | __ sw(scratch1, FieldMemOperand(elements_reg, offset)); |
| 3831 | __ sw(scratch2, FieldMemOperand(elements_reg, offset + kPointerSize)); |
| 3832 | } |
| 3833 | |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3834 | // Install the new backing store in the JSArray. |
| 3835 | __ sw(elements_reg, |
| 3836 | FieldMemOperand(receiver_reg, JSObject::kElementsOffset)); |
| 3837 | __ RecordWriteField(receiver_reg, JSObject::kElementsOffset, elements_reg, |
| 3838 | scratch1, kRAHasNotBeenSaved, kDontSaveFPRegs, |
| 3839 | EMIT_REMEMBERED_SET, OMIT_SMI_CHECK); |
| 3840 | |
| 3841 | // Increment the length of the array. |
| 3842 | __ li(length_reg, Operand(Smi::FromInt(1))); |
| 3843 | __ sw(length_reg, FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); |
danno@chromium.org | 00379b8 | 2012-05-04 09:16:29 +0000 | [diff] [blame] | 3844 | __ lw(elements_reg, |
| 3845 | FieldMemOperand(receiver_reg, JSObject::kElementsOffset)); |
svenpanne@chromium.org | 83130cf | 2012-11-30 10:13:25 +0000 | [diff] [blame] | 3846 | __ Ret(); |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3847 | |
| 3848 | __ bind(&check_capacity); |
| 3849 | // Make sure that the backing store can hold additional elements. |
| 3850 | __ lw(scratch1, |
| 3851 | FieldMemOperand(elements_reg, FixedDoubleArray::kLengthOffset)); |
| 3852 | __ Branch(&slow, hs, length_reg, Operand(scratch1)); |
| 3853 | |
| 3854 | // Grow the array and finish the store. |
| 3855 | __ Addu(length_reg, length_reg, Operand(Smi::FromInt(1))); |
| 3856 | __ sw(length_reg, FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); |
| 3857 | __ jmp(&finish_store); |
| 3858 | |
| 3859 | __ bind(&slow); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3860 | TailCallBuiltin(masm, Builtins::kKeyedStoreIC_Slow); |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3861 | } |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 3862 | } |
| 3863 | |
| 3864 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 3865 | #undef __ |
| 3866 | |
| 3867 | } } // namespace v8::internal |
| 3868 | |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 3869 | #endif // V8_TARGET_ARCH_MIPS |