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. |
| 124 | // Name must be a symbol 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, |
| 128 | Handle<String> name, |
| 129 | Register scratch0, |
| 130 | Register scratch1) { |
| 131 | ASSERT(name->IsSymbol()); |
| 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 | |
| 165 | StringDictionaryLookupStub::GenerateNegativeLookup(masm, |
| 166 | miss_label, |
| 167 | &done, |
| 168 | receiver, |
| 169 | properties, |
| 170 | name, |
| 171 | scratch1); |
| 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. |
| 220 | __ lw(scratch, FieldMemOperand(name, String::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 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 310 | // Load a fast property out of a holder object (src). In-object properties |
| 311 | // are loaded directly otherwise the property is loaded from the properties |
| 312 | // fixed array. |
| 313 | void StubCompiler::GenerateFastPropertyLoad(MacroAssembler* masm, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 314 | Register dst, |
| 315 | Register src, |
| 316 | Handle<JSObject> holder, |
| 317 | int index) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 318 | // Adjust for the number of properties stored in the holder. |
| 319 | index -= holder->map()->inobject_properties(); |
| 320 | if (index < 0) { |
| 321 | // Get the property straight out of the holder. |
| 322 | int offset = holder->map()->instance_size() + (index * kPointerSize); |
| 323 | __ lw(dst, FieldMemOperand(src, offset)); |
| 324 | } else { |
| 325 | // Calculate the offset into the properties array. |
| 326 | int offset = index * kPointerSize + FixedArray::kHeaderSize; |
| 327 | __ lw(dst, FieldMemOperand(src, JSObject::kPropertiesOffset)); |
| 328 | __ lw(dst, FieldMemOperand(dst, offset)); |
| 329 | } |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 330 | } |
| 331 | |
| 332 | |
| 333 | void StubCompiler::GenerateLoadArrayLength(MacroAssembler* masm, |
| 334 | Register receiver, |
| 335 | Register scratch, |
| 336 | Label* miss_label) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 337 | // Check that the receiver isn't a smi. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 338 | __ JumpIfSmi(receiver, miss_label); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 339 | |
| 340 | // Check that the object is a JS array. |
| 341 | __ GetObjectType(receiver, scratch, scratch); |
| 342 | __ Branch(miss_label, ne, scratch, Operand(JS_ARRAY_TYPE)); |
| 343 | |
| 344 | // Load length directly from the JS array. |
| 345 | __ lw(v0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 346 | __ Ret(); |
| 347 | } |
| 348 | |
| 349 | |
| 350 | // Generate code to check if an object is a string. If the object is a |
| 351 | // heap object, its map's instance type is left in the scratch1 register. |
| 352 | // If this is not needed, scratch1 and scratch2 may be the same register. |
| 353 | static void GenerateStringCheck(MacroAssembler* masm, |
| 354 | Register receiver, |
| 355 | Register scratch1, |
| 356 | Register scratch2, |
| 357 | Label* smi, |
| 358 | Label* non_string_object) { |
| 359 | // Check that the receiver isn't a smi. |
| 360 | __ JumpIfSmi(receiver, smi, t0); |
| 361 | |
| 362 | // Check that the object is a string. |
| 363 | __ lw(scratch1, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
| 364 | __ lbu(scratch1, FieldMemOperand(scratch1, Map::kInstanceTypeOffset)); |
| 365 | __ And(scratch2, scratch1, Operand(kIsNotStringMask)); |
| 366 | // The cast is to resolve the overload for the argument of 0x0. |
| 367 | __ Branch(non_string_object, |
| 368 | ne, |
| 369 | scratch2, |
| 370 | Operand(static_cast<int32_t>(kStringTag))); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 371 | } |
| 372 | |
| 373 | |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 374 | // Generate code to load the length from a string object and return the length. |
| 375 | // If the receiver object is not a string or a wrapped string object the |
| 376 | // execution continues at the miss label. The register containing the |
| 377 | // receiver is potentially clobbered. |
| 378 | void StubCompiler::GenerateLoadStringLength(MacroAssembler* masm, |
| 379 | Register receiver, |
| 380 | Register scratch1, |
| 381 | Register scratch2, |
| 382 | Label* miss, |
| 383 | bool support_wrappers) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 384 | Label check_wrapper; |
| 385 | |
| 386 | // Check if the object is a string leaving the instance type in the |
| 387 | // scratch1 register. |
| 388 | GenerateStringCheck(masm, receiver, scratch1, scratch2, miss, |
| 389 | support_wrappers ? &check_wrapper : miss); |
| 390 | |
| 391 | // Load length directly from the string. |
| 392 | __ lw(v0, FieldMemOperand(receiver, String::kLengthOffset)); |
| 393 | __ Ret(); |
| 394 | |
| 395 | if (support_wrappers) { |
| 396 | // Check if the object is a JSValue wrapper. |
| 397 | __ bind(&check_wrapper); |
| 398 | __ Branch(miss, ne, scratch1, Operand(JS_VALUE_TYPE)); |
| 399 | |
| 400 | // Unwrap the value and check if the wrapped value is a string. |
| 401 | __ lw(scratch1, FieldMemOperand(receiver, JSValue::kValueOffset)); |
| 402 | GenerateStringCheck(masm, scratch1, scratch2, scratch2, miss, miss); |
| 403 | __ lw(v0, FieldMemOperand(scratch1, String::kLengthOffset)); |
| 404 | __ Ret(); |
| 405 | } |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 406 | } |
| 407 | |
| 408 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 409 | void StubCompiler::GenerateLoadFunctionPrototype(MacroAssembler* masm, |
| 410 | Register receiver, |
| 411 | Register scratch1, |
| 412 | Register scratch2, |
| 413 | Label* miss_label) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 414 | __ TryGetFunctionPrototype(receiver, scratch1, scratch2, miss_label); |
| 415 | __ mov(v0, scratch1); |
| 416 | __ Ret(); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 417 | } |
| 418 | |
| 419 | |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 420 | // Generate StoreField code, value is passed in a0 register. |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 421 | // After executing generated code, the receiver_reg and name_reg |
| 422 | // may be clobbered. |
| 423 | void StubCompiler::GenerateStoreField(MacroAssembler* masm, |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 424 | Handle<JSObject> object, |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 425 | int index, |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 426 | Handle<Map> transition, |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 427 | Handle<String> name, |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 428 | Register receiver_reg, |
| 429 | Register name_reg, |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 430 | Register scratch1, |
| 431 | Register scratch2, |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 432 | Label* miss_label) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 433 | // a0 : value. |
| 434 | Label exit; |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 435 | |
| 436 | LookupResult lookup(masm->isolate()); |
| 437 | object->Lookup(*name, &lookup); |
| 438 | if (lookup.IsFound() && (lookup.IsReadOnly() || !lookup.IsCacheable())) { |
| 439 | // In sloppy mode, we could just return the value and be done. However, we |
| 440 | // might be in strict mode, where we have to throw. Since we cannot tell, |
| 441 | // go into slow case unconditionally. |
| 442 | __ jmp(miss_label); |
| 443 | return; |
| 444 | } |
| 445 | |
jkummerow@chromium.org | 05ed9dd | 2012-01-23 14:42:48 +0000 | [diff] [blame] | 446 | // Check that the map of the object hasn't changed. |
jkummerow@chromium.org | 28faa98 | 2012-04-13 09:58:30 +0000 | [diff] [blame] | 447 | CompareMapMode mode = transition.is_null() ? ALLOW_ELEMENT_TRANSITION_MAPS |
| 448 | : REQUIRE_EXACT_MAP; |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 449 | __ CheckMap(receiver_reg, scratch1, Handle<Map>(object->map()), miss_label, |
jkummerow@chromium.org | 28faa98 | 2012-04-13 09:58:30 +0000 | [diff] [blame] | 450 | DO_SMI_CHECK, mode); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 451 | |
| 452 | // Perform global security token check if needed. |
| 453 | if (object->IsJSGlobalProxy()) { |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 454 | __ CheckAccessGlobalProxy(receiver_reg, scratch1, miss_label); |
| 455 | } |
| 456 | |
| 457 | // Check that we are allowed to write this. |
| 458 | if (!transition.is_null() && object->GetPrototype()->IsJSObject()) { |
| 459 | JSObject* holder; |
| 460 | if (lookup.IsFound()) { |
| 461 | holder = lookup.holder(); |
| 462 | } else { |
| 463 | // Find the top object. |
| 464 | holder = *object; |
| 465 | do { |
| 466 | holder = JSObject::cast(holder->GetPrototype()); |
| 467 | } while (holder->GetPrototype()->IsJSObject()); |
| 468 | } |
| 469 | // We need an extra register, push |
| 470 | __ push(name_reg); |
| 471 | Label miss_pop, done_check; |
| 472 | CheckPrototypes(object, receiver_reg, Handle<JSObject>(holder), name_reg, |
| 473 | scratch1, scratch2, name, &miss_pop); |
| 474 | __ jmp(&done_check); |
| 475 | __ bind(&miss_pop); |
| 476 | __ pop(name_reg); |
| 477 | __ jmp(miss_label); |
| 478 | __ bind(&done_check); |
| 479 | __ pop(name_reg); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 480 | } |
| 481 | |
| 482 | // Stub never generated for non-global objects that require access |
| 483 | // checks. |
| 484 | ASSERT(object->IsJSGlobalProxy() || !object->IsAccessCheckNeeded()); |
| 485 | |
| 486 | // Perform map transition for the receiver if necessary. |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 487 | if (!transition.is_null() && (object->map()->unused_property_fields() == 0)) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 488 | // The properties must be extended before we can store the value. |
| 489 | // We jump to a runtime call that extends the properties array. |
| 490 | __ push(receiver_reg); |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 491 | __ li(a2, Operand(transition)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 492 | __ Push(a2, a0); |
| 493 | __ TailCallExternalReference( |
| 494 | ExternalReference(IC_Utility(IC::kSharedStoreIC_ExtendStorage), |
| 495 | masm->isolate()), |
| 496 | 3, 1); |
| 497 | return; |
| 498 | } |
| 499 | |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 500 | if (!transition.is_null()) { |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 501 | // Update the map of the object. |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 502 | __ li(scratch1, Operand(transition)); |
| 503 | __ sw(scratch1, FieldMemOperand(receiver_reg, HeapObject::kMapOffset)); |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 504 | |
| 505 | // Update the write barrier for the map field and pass the now unused |
| 506 | // name_reg as scratch register. |
| 507 | __ RecordWriteField(receiver_reg, |
| 508 | HeapObject::kMapOffset, |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 509 | scratch1, |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 510 | name_reg, |
| 511 | kRAHasNotBeenSaved, |
| 512 | kDontSaveFPRegs, |
| 513 | OMIT_REMEMBERED_SET, |
| 514 | OMIT_SMI_CHECK); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 515 | } |
| 516 | |
| 517 | // Adjust for the number of properties stored in the object. Even in the |
| 518 | // face of a transition we can use the old map here because the size of the |
| 519 | // object and the number of in-object properties is not going to change. |
| 520 | index -= object->map()->inobject_properties(); |
| 521 | |
| 522 | if (index < 0) { |
| 523 | // Set the property straight into the object. |
| 524 | int offset = object->map()->instance_size() + (index * kPointerSize); |
| 525 | __ sw(a0, FieldMemOperand(receiver_reg, offset)); |
| 526 | |
| 527 | // Skip updating write barrier if storing a smi. |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 528 | __ JumpIfSmi(a0, &exit, scratch1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 529 | |
| 530 | // Update the write barrier for the array address. |
| 531 | // Pass the now unused name_reg as a scratch register. |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 532 | __ mov(name_reg, a0); |
| 533 | __ RecordWriteField(receiver_reg, |
| 534 | offset, |
| 535 | name_reg, |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 536 | scratch1, |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 537 | kRAHasNotBeenSaved, |
| 538 | kDontSaveFPRegs); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 539 | } else { |
| 540 | // Write to the properties array. |
| 541 | int offset = index * kPointerSize + FixedArray::kHeaderSize; |
| 542 | // Get the properties array. |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 543 | __ lw(scratch1, |
| 544 | FieldMemOperand(receiver_reg, JSObject::kPropertiesOffset)); |
| 545 | __ sw(a0, FieldMemOperand(scratch1, offset)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 546 | |
| 547 | // Skip updating write barrier if storing a smi. |
| 548 | __ JumpIfSmi(a0, &exit); |
| 549 | |
| 550 | // Update the write barrier for the array address. |
| 551 | // Ok to clobber receiver_reg and name_reg, since we return. |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 552 | __ mov(name_reg, a0); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 553 | __ RecordWriteField(scratch1, |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 554 | offset, |
| 555 | name_reg, |
| 556 | receiver_reg, |
| 557 | kRAHasNotBeenSaved, |
| 558 | kDontSaveFPRegs); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 559 | } |
| 560 | |
| 561 | // Return the value (register v0). |
| 562 | __ bind(&exit); |
| 563 | __ mov(v0, a0); |
| 564 | __ Ret(); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 565 | } |
| 566 | |
| 567 | |
| 568 | void StubCompiler::GenerateLoadMiss(MacroAssembler* masm, Code::Kind kind) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 569 | ASSERT(kind == Code::LOAD_IC || kind == Code::KEYED_LOAD_IC); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 570 | Handle<Code> code = (kind == Code::LOAD_IC) |
| 571 | ? masm->isolate()->builtins()->LoadIC_Miss() |
| 572 | : masm->isolate()->builtins()->KeyedLoadIC_Miss(); |
| 573 | __ Jump(code, RelocInfo::CODE_TARGET); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 574 | } |
| 575 | |
| 576 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 577 | static void GenerateCallFunction(MacroAssembler* masm, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 578 | Handle<Object> object, |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 579 | const ParameterCount& arguments, |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 580 | Label* miss, |
| 581 | Code::ExtraICState extra_ic_state) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 582 | // ----------- S t a t e ------------- |
| 583 | // -- a0: receiver |
| 584 | // -- a1: function to call |
| 585 | // ----------------------------------- |
| 586 | // Check that the function really is a function. |
| 587 | __ JumpIfSmi(a1, miss); |
| 588 | __ GetObjectType(a1, a3, a3); |
| 589 | __ Branch(miss, ne, a3, Operand(JS_FUNCTION_TYPE)); |
| 590 | |
| 591 | // Patch the receiver on the stack with the global proxy if |
| 592 | // necessary. |
| 593 | if (object->IsGlobalObject()) { |
| 594 | __ lw(a3, FieldMemOperand(a0, GlobalObject::kGlobalReceiverOffset)); |
| 595 | __ sw(a3, MemOperand(sp, arguments.immediate() * kPointerSize)); |
| 596 | } |
| 597 | |
| 598 | // Invoke the function. |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 599 | CallKind call_kind = CallICBase::Contextual::decode(extra_ic_state) |
| 600 | ? CALL_AS_FUNCTION |
| 601 | : CALL_AS_METHOD; |
| 602 | __ InvokeFunction(a1, arguments, JUMP_FUNCTION, NullCallWrapper(), call_kind); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 603 | } |
| 604 | |
| 605 | |
| 606 | static void PushInterceptorArguments(MacroAssembler* masm, |
| 607 | Register receiver, |
| 608 | Register holder, |
| 609 | Register name, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 610 | Handle<JSObject> holder_obj) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 611 | __ push(name); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 612 | Handle<InterceptorInfo> interceptor(holder_obj->GetNamedInterceptor()); |
| 613 | ASSERT(!masm->isolate()->heap()->InNewSpace(*interceptor)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 614 | Register scratch = name; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 615 | __ li(scratch, Operand(interceptor)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 616 | __ Push(scratch, receiver, holder); |
| 617 | __ lw(scratch, FieldMemOperand(scratch, InterceptorInfo::kDataOffset)); |
| 618 | __ push(scratch); |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 619 | __ li(scratch, Operand(ExternalReference::isolate_address())); |
| 620 | __ push(scratch); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 621 | } |
| 622 | |
| 623 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 624 | static void CompileCallLoadPropertyWithInterceptor( |
| 625 | MacroAssembler* masm, |
| 626 | Register receiver, |
| 627 | Register holder, |
| 628 | Register name, |
| 629 | Handle<JSObject> holder_obj) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 630 | PushInterceptorArguments(masm, receiver, holder, name, holder_obj); |
| 631 | |
| 632 | ExternalReference ref = |
| 633 | ExternalReference(IC_Utility(IC::kLoadPropertyWithInterceptorOnly), |
| 634 | masm->isolate()); |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 635 | __ PrepareCEntryArgs(6); |
ulan@chromium.org | 6ff6514 | 2012-03-21 09:52:17 +0000 | [diff] [blame] | 636 | __ PrepareCEntryFunction(ref); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 637 | |
| 638 | CEntryStub stub(1); |
| 639 | __ CallStub(&stub); |
| 640 | } |
| 641 | |
| 642 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 643 | static const int kFastApiCallArguments = 4; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 644 | |
| 645 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 646 | // Reserves space for the extra arguments to API function in the |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 647 | // caller's frame. |
| 648 | // |
| 649 | // These arguments are set by CheckPrototypes and GenerateFastApiDirectCall. |
| 650 | static void ReserveSpaceForFastApiCall(MacroAssembler* masm, |
| 651 | Register scratch) { |
| 652 | ASSERT(Smi::FromInt(0) == 0); |
| 653 | for (int i = 0; i < kFastApiCallArguments; i++) { |
| 654 | __ push(zero_reg); |
| 655 | } |
| 656 | } |
| 657 | |
| 658 | |
| 659 | // Undoes the effects of ReserveSpaceForFastApiCall. |
| 660 | static void FreeSpaceForFastApiCall(MacroAssembler* masm) { |
| 661 | __ Drop(kFastApiCallArguments); |
| 662 | } |
| 663 | |
| 664 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 665 | static void GenerateFastApiDirectCall(MacroAssembler* masm, |
| 666 | const CallOptimization& optimization, |
| 667 | int argc) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 668 | // ----------- S t a t e ------------- |
| 669 | // -- sp[0] : holder (set by CheckPrototypes) |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 670 | // -- sp[4] : callee JS function |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 671 | // -- sp[8] : call data |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 672 | // -- sp[12] : isolate |
| 673 | // -- sp[16] : last JS argument |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 674 | // -- ... |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 675 | // -- sp[(argc + 3) * 4] : first JS argument |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 676 | // -- sp[(argc + 4) * 4] : receiver |
| 677 | // ----------------------------------- |
| 678 | // Get the function and setup the context. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 679 | Handle<JSFunction> function = optimization.constant_function(); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 680 | __ LoadHeapObject(t1, function); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 681 | __ lw(cp, FieldMemOperand(t1, JSFunction::kContextOffset)); |
| 682 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 683 | // Pass the additional arguments. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 684 | Handle<CallHandlerInfo> api_call_info = optimization.api_call_info(); |
| 685 | Handle<Object> call_data(api_call_info->data()); |
| 686 | if (masm->isolate()->heap()->InNewSpace(*call_data)) { |
| 687 | __ li(a0, api_call_info); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 688 | __ lw(t2, FieldMemOperand(a0, CallHandlerInfo::kDataOffset)); |
| 689 | } else { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 690 | __ li(t2, call_data); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 691 | } |
| 692 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 693 | __ li(t3, Operand(ExternalReference::isolate_address())); |
| 694 | // Store JS function, call data and isolate. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 695 | __ sw(t1, MemOperand(sp, 1 * kPointerSize)); |
| 696 | __ sw(t2, MemOperand(sp, 2 * kPointerSize)); |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 697 | __ sw(t3, MemOperand(sp, 3 * kPointerSize)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 698 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 699 | // Prepare arguments. |
| 700 | __ Addu(a2, sp, Operand(3 * kPointerSize)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 701 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 702 | // Allocate the v8::Arguments structure in the arguments' space since |
| 703 | // it's not controlled by GC. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 704 | const int kApiStackSpace = 4; |
| 705 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 706 | FrameScope frame_scope(masm, StackFrame::MANUAL); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 707 | __ EnterExitFrame(false, kApiStackSpace); |
| 708 | |
| 709 | // NOTE: the O32 abi requires a0 to hold a special pointer when returning a |
| 710 | // struct from the function (which is currently the case). This means we pass |
| 711 | // the first argument in a1 instead of a0. TryCallApiFunctionAndReturn |
| 712 | // will handle setting up a0. |
| 713 | |
| 714 | // a1 = v8::Arguments& |
| 715 | // Arguments is built at sp + 1 (sp is a reserved spot for ra). |
| 716 | __ Addu(a1, sp, kPointerSize); |
| 717 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 718 | // v8::Arguments::implicit_args_ |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 719 | __ sw(a2, MemOperand(a1, 0 * kPointerSize)); |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 720 | // v8::Arguments::values_ |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 721 | __ Addu(t0, a2, Operand(argc * kPointerSize)); |
| 722 | __ sw(t0, MemOperand(a1, 1 * kPointerSize)); |
| 723 | // v8::Arguments::length_ = argc |
| 724 | __ li(t0, Operand(argc)); |
| 725 | __ sw(t0, MemOperand(a1, 2 * kPointerSize)); |
| 726 | // v8::Arguments::is_construct_call = 0 |
| 727 | __ sw(zero_reg, MemOperand(a1, 3 * kPointerSize)); |
| 728 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 729 | const int kStackUnwindSpace = argc + kFastApiCallArguments + 1; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 730 | Address function_address = v8::ToCData<Address>(api_call_info->callback()); |
| 731 | ApiFunction fun(function_address); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 732 | ExternalReference ref = |
| 733 | ExternalReference(&fun, |
| 734 | ExternalReference::DIRECT_API_CALL, |
| 735 | masm->isolate()); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 736 | AllowExternalCallThatCantCauseGC scope(masm); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 737 | __ CallApiFunctionAndReturn(ref, kStackUnwindSpace); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 738 | } |
| 739 | |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 740 | class CallInterceptorCompiler BASE_EMBEDDED { |
| 741 | public: |
| 742 | CallInterceptorCompiler(StubCompiler* stub_compiler, |
| 743 | const ParameterCount& arguments, |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 744 | Register name, |
| 745 | Code::ExtraICState extra_ic_state) |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 746 | : stub_compiler_(stub_compiler), |
| 747 | arguments_(arguments), |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 748 | name_(name), |
| 749 | extra_ic_state_(extra_ic_state) {} |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 750 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 751 | void Compile(MacroAssembler* masm, |
| 752 | Handle<JSObject> object, |
| 753 | Handle<JSObject> holder, |
| 754 | Handle<String> name, |
| 755 | LookupResult* lookup, |
| 756 | Register receiver, |
| 757 | Register scratch1, |
| 758 | Register scratch2, |
| 759 | Register scratch3, |
| 760 | Label* miss) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 761 | ASSERT(holder->HasNamedInterceptor()); |
| 762 | ASSERT(!holder->GetNamedInterceptor()->getter()->IsUndefined()); |
| 763 | |
| 764 | // Check that the receiver isn't a smi. |
| 765 | __ JumpIfSmi(receiver, miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 766 | CallOptimization optimization(lookup); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 767 | if (optimization.is_constant_call()) { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 768 | CompileCacheable(masm, object, receiver, scratch1, scratch2, scratch3, |
| 769 | holder, lookup, name, optimization, miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 770 | } else { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 771 | CompileRegular(masm, object, receiver, scratch1, scratch2, scratch3, |
| 772 | name, holder, miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 773 | } |
| 774 | } |
| 775 | |
| 776 | private: |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 777 | void CompileCacheable(MacroAssembler* masm, |
| 778 | Handle<JSObject> object, |
| 779 | Register receiver, |
| 780 | Register scratch1, |
| 781 | Register scratch2, |
| 782 | Register scratch3, |
| 783 | Handle<JSObject> interceptor_holder, |
| 784 | LookupResult* lookup, |
| 785 | Handle<String> name, |
| 786 | const CallOptimization& optimization, |
| 787 | Label* miss_label) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 788 | ASSERT(optimization.is_constant_call()); |
| 789 | ASSERT(!lookup->holder()->IsGlobalObject()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 790 | Counters* counters = masm->isolate()->counters(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 791 | int depth1 = kInvalidProtoDepth; |
| 792 | int depth2 = kInvalidProtoDepth; |
| 793 | bool can_do_fast_api_call = false; |
| 794 | if (optimization.is_simple_api_call() && |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 795 | !lookup->holder()->IsGlobalObject()) { |
| 796 | depth1 = optimization.GetPrototypeDepthOfExpectedType( |
| 797 | object, interceptor_holder); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 798 | if (depth1 == kInvalidProtoDepth) { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 799 | depth2 = optimization.GetPrototypeDepthOfExpectedType( |
| 800 | interceptor_holder, Handle<JSObject>(lookup->holder())); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 801 | } |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 802 | can_do_fast_api_call = |
| 803 | depth1 != kInvalidProtoDepth || depth2 != kInvalidProtoDepth; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 804 | } |
| 805 | |
| 806 | __ IncrementCounter(counters->call_const_interceptor(), 1, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 807 | scratch1, scratch2); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 808 | |
| 809 | if (can_do_fast_api_call) { |
| 810 | __ IncrementCounter(counters->call_const_interceptor_fast_api(), 1, |
| 811 | scratch1, scratch2); |
| 812 | ReserveSpaceForFastApiCall(masm, scratch1); |
| 813 | } |
| 814 | |
| 815 | // Check that the maps from receiver to interceptor's holder |
| 816 | // haven't changed and thus we can invoke interceptor. |
| 817 | Label miss_cleanup; |
| 818 | Label* miss = can_do_fast_api_call ? &miss_cleanup : miss_label; |
| 819 | Register holder = |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 820 | stub_compiler_->CheckPrototypes(object, receiver, interceptor_holder, |
| 821 | scratch1, scratch2, scratch3, |
| 822 | name, depth1, miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 823 | |
| 824 | // Invoke an interceptor and if it provides a value, |
| 825 | // branch to |regular_invoke|. |
| 826 | Label regular_invoke; |
| 827 | LoadWithInterceptor(masm, receiver, holder, interceptor_holder, scratch2, |
| 828 | ®ular_invoke); |
| 829 | |
| 830 | // Interceptor returned nothing for this property. Try to use cached |
| 831 | // constant function. |
| 832 | |
| 833 | // Check that the maps from interceptor's holder to constant function's |
| 834 | // 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] | 835 | if (*interceptor_holder != lookup->holder()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 836 | stub_compiler_->CheckPrototypes(interceptor_holder, receiver, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 837 | Handle<JSObject>(lookup->holder()), |
| 838 | scratch1, scratch2, scratch3, |
| 839 | name, depth2, miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 840 | } else { |
| 841 | // CheckPrototypes has a side effect of fetching a 'holder' |
| 842 | // for API (object which is instanceof for the signature). It's |
| 843 | // safe to omit it here, as if present, it should be fetched |
| 844 | // by the previous CheckPrototypes. |
| 845 | ASSERT(depth2 == kInvalidProtoDepth); |
| 846 | } |
| 847 | |
| 848 | // Invoke function. |
| 849 | if (can_do_fast_api_call) { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 850 | GenerateFastApiDirectCall(masm, optimization, arguments_.immediate()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 851 | } else { |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 852 | CallKind call_kind = CallICBase::Contextual::decode(extra_ic_state_) |
| 853 | ? CALL_AS_FUNCTION |
| 854 | : CALL_AS_METHOD; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 855 | __ InvokeFunction(optimization.constant_function(), arguments_, |
jkummerow@chromium.org | 05ed9dd | 2012-01-23 14:42:48 +0000 | [diff] [blame] | 856 | JUMP_FUNCTION, NullCallWrapper(), call_kind); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 857 | } |
| 858 | |
| 859 | // Deferred code for fast API call case---clean preallocated space. |
| 860 | if (can_do_fast_api_call) { |
| 861 | __ bind(&miss_cleanup); |
| 862 | FreeSpaceForFastApiCall(masm); |
| 863 | __ Branch(miss_label); |
| 864 | } |
| 865 | |
| 866 | // Invoke a regular function. |
| 867 | __ bind(®ular_invoke); |
| 868 | if (can_do_fast_api_call) { |
| 869 | FreeSpaceForFastApiCall(masm); |
| 870 | } |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 871 | } |
| 872 | |
| 873 | void CompileRegular(MacroAssembler* masm, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 874 | Handle<JSObject> object, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 875 | Register receiver, |
| 876 | Register scratch1, |
| 877 | Register scratch2, |
| 878 | Register scratch3, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 879 | Handle<String> name, |
| 880 | Handle<JSObject> interceptor_holder, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 881 | Label* miss_label) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 882 | Register holder = |
| 883 | stub_compiler_->CheckPrototypes(object, receiver, interceptor_holder, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 884 | scratch1, scratch2, scratch3, |
| 885 | name, miss_label); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 886 | |
| 887 | // Call a runtime function to load the interceptor property. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 888 | FrameScope scope(masm, StackFrame::INTERNAL); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 889 | // Save the name_ register across the call. |
| 890 | __ push(name_); |
| 891 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 892 | PushInterceptorArguments(masm, receiver, holder, name_, interceptor_holder); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 893 | |
| 894 | __ CallExternalReference( |
| 895 | ExternalReference( |
| 896 | IC_Utility(IC::kLoadPropertyWithInterceptorForCall), |
| 897 | masm->isolate()), |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 898 | 6); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 899 | // Restore the name_ register. |
| 900 | __ pop(name_); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 901 | // Leave the internal frame. |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 902 | } |
| 903 | |
| 904 | void LoadWithInterceptor(MacroAssembler* masm, |
| 905 | Register receiver, |
| 906 | Register holder, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 907 | Handle<JSObject> holder_obj, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 908 | Register scratch, |
| 909 | Label* interceptor_succeeded) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 910 | { |
| 911 | FrameScope scope(masm, StackFrame::INTERNAL); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 912 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 913 | __ Push(holder, name_); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 914 | CompileCallLoadPropertyWithInterceptor(masm, |
| 915 | receiver, |
| 916 | holder, |
| 917 | name_, |
| 918 | holder_obj); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 919 | __ pop(name_); // Restore the name. |
| 920 | __ pop(receiver); // Restore the holder. |
| 921 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 922 | // If interceptor returns no-result sentinel, call the constant function. |
| 923 | __ LoadRoot(scratch, Heap::kNoInterceptorResultSentinelRootIndex); |
| 924 | __ Branch(interceptor_succeeded, ne, v0, Operand(scratch)); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 925 | } |
| 926 | |
| 927 | StubCompiler* stub_compiler_; |
| 928 | const ParameterCount& arguments_; |
| 929 | Register name_; |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 930 | Code::ExtraICState extra_ic_state_; |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 931 | }; |
| 932 | |
| 933 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 934 | |
| 935 | // Generate code to check that a global property cell is empty. Create |
| 936 | // the property cell at compilation time if no cell exists for the |
| 937 | // property. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 938 | static void GenerateCheckPropertyCell(MacroAssembler* masm, |
| 939 | Handle<GlobalObject> global, |
| 940 | Handle<String> name, |
| 941 | Register scratch, |
| 942 | Label* miss) { |
| 943 | Handle<JSGlobalPropertyCell> cell = |
| 944 | GlobalObject::EnsurePropertyCell(global, name); |
| 945 | ASSERT(cell->value()->IsTheHole()); |
| 946 | __ li(scratch, Operand(cell)); |
| 947 | __ lw(scratch, |
| 948 | FieldMemOperand(scratch, JSGlobalPropertyCell::kValueOffset)); |
| 949 | __ LoadRoot(at, Heap::kTheHoleValueRootIndex); |
| 950 | __ Branch(miss, ne, scratch, Operand(at)); |
| 951 | } |
| 952 | |
| 953 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 954 | // Calls GenerateCheckPropertyCell for each global object in the prototype chain |
| 955 | // from object to (but not including) holder. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 956 | static void GenerateCheckPropertyCells(MacroAssembler* masm, |
| 957 | Handle<JSObject> object, |
| 958 | Handle<JSObject> holder, |
| 959 | Handle<String> name, |
| 960 | Register scratch, |
| 961 | Label* miss) { |
| 962 | Handle<JSObject> current = object; |
| 963 | while (!current.is_identical_to(holder)) { |
| 964 | if (current->IsGlobalObject()) { |
| 965 | GenerateCheckPropertyCell(masm, |
| 966 | Handle<GlobalObject>::cast(current), |
| 967 | name, |
| 968 | scratch, |
| 969 | miss); |
| 970 | } |
| 971 | current = Handle<JSObject>(JSObject::cast(current->GetPrototype())); |
| 972 | } |
| 973 | } |
| 974 | |
| 975 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 976 | // Convert and store int passed in register ival to IEEE 754 single precision |
| 977 | // floating point value at memory location (dst + 4 * wordoffset) |
| 978 | // If FPU is available use it for conversion. |
| 979 | static void StoreIntAsFloat(MacroAssembler* masm, |
| 980 | Register dst, |
| 981 | Register wordoffset, |
| 982 | Register ival, |
| 983 | Register fval, |
| 984 | Register scratch1, |
| 985 | Register scratch2) { |
| 986 | if (CpuFeatures::IsSupported(FPU)) { |
| 987 | CpuFeatures::Scope scope(FPU); |
| 988 | __ mtc1(ival, f0); |
| 989 | __ cvt_s_w(f0, f0); |
| 990 | __ sll(scratch1, wordoffset, 2); |
| 991 | __ addu(scratch1, dst, scratch1); |
| 992 | __ swc1(f0, MemOperand(scratch1, 0)); |
| 993 | } else { |
| 994 | // FPU is not available, do manual conversions. |
| 995 | |
| 996 | Label not_special, done; |
| 997 | // Move sign bit from source to destination. This works because the sign |
| 998 | // bit in the exponent word of the double has the same position and polarity |
| 999 | // as the 2's complement sign bit in a Smi. |
| 1000 | ASSERT(kBinary32SignMask == 0x80000000u); |
| 1001 | |
| 1002 | __ And(fval, ival, Operand(kBinary32SignMask)); |
| 1003 | // Negate value if it is negative. |
| 1004 | __ subu(scratch1, zero_reg, ival); |
mstarzinger@chromium.org | 3233d2f | 2012-03-14 11:16:03 +0000 | [diff] [blame] | 1005 | __ Movn(ival, scratch1, fval); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1006 | |
| 1007 | // We have -1, 0 or 1, which we treat specially. Register ival contains |
| 1008 | // absolute value: it is either equal to 1 (special case of -1 and 1), |
| 1009 | // greater than 1 (not a special case) or less than 1 (special case of 0). |
| 1010 | __ Branch(¬_special, gt, ival, Operand(1)); |
| 1011 | |
| 1012 | // For 1 or -1 we need to or in the 0 exponent (biased). |
| 1013 | static const uint32_t exponent_word_for_1 = |
| 1014 | kBinary32ExponentBias << kBinary32ExponentShift; |
| 1015 | |
| 1016 | __ Xor(scratch1, ival, Operand(1)); |
| 1017 | __ li(scratch2, exponent_word_for_1); |
| 1018 | __ or_(scratch2, fval, scratch2); |
mstarzinger@chromium.org | 3233d2f | 2012-03-14 11:16:03 +0000 | [diff] [blame] | 1019 | __ Movz(fval, scratch2, scratch1); // Only if ival is equal to 1. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1020 | __ Branch(&done); |
| 1021 | |
| 1022 | __ bind(¬_special); |
| 1023 | // Count leading zeros. |
| 1024 | // Gets the wrong answer for 0, but we already checked for that case above. |
| 1025 | Register zeros = scratch2; |
mstarzinger@chromium.org | 3233d2f | 2012-03-14 11:16:03 +0000 | [diff] [blame] | 1026 | __ Clz(zeros, ival); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1027 | |
| 1028 | // Compute exponent and or it into the exponent register. |
| 1029 | __ li(scratch1, (kBitsPerInt - 1) + kBinary32ExponentBias); |
| 1030 | __ subu(scratch1, scratch1, zeros); |
| 1031 | |
| 1032 | __ sll(scratch1, scratch1, kBinary32ExponentShift); |
| 1033 | __ or_(fval, fval, scratch1); |
| 1034 | |
| 1035 | // Shift up the source chopping the top bit off. |
| 1036 | __ Addu(zeros, zeros, Operand(1)); |
| 1037 | // This wouldn't work for 1 and -1 as the shift would be 32 which means 0. |
| 1038 | __ sllv(ival, ival, zeros); |
| 1039 | // And the top (top 20 bits). |
| 1040 | __ srl(scratch1, ival, kBitsPerInt - kBinary32MantissaBits); |
| 1041 | __ or_(fval, fval, scratch1); |
| 1042 | |
| 1043 | __ bind(&done); |
| 1044 | |
| 1045 | __ sll(scratch1, wordoffset, 2); |
| 1046 | __ addu(scratch1, dst, scratch1); |
| 1047 | __ sw(fval, MemOperand(scratch1, 0)); |
| 1048 | } |
| 1049 | } |
| 1050 | |
| 1051 | |
| 1052 | // Convert unsigned integer with specified number of leading zeroes in binary |
| 1053 | // representation to IEEE 754 double. |
| 1054 | // Integer to convert is passed in register hiword. |
| 1055 | // Resulting double is returned in registers hiword:loword. |
| 1056 | // This functions does not work correctly for 0. |
| 1057 | static void GenerateUInt2Double(MacroAssembler* masm, |
| 1058 | Register hiword, |
| 1059 | Register loword, |
| 1060 | Register scratch, |
| 1061 | int leading_zeroes) { |
| 1062 | const int meaningful_bits = kBitsPerInt - leading_zeroes - 1; |
| 1063 | const int biased_exponent = HeapNumber::kExponentBias + meaningful_bits; |
| 1064 | |
| 1065 | const int mantissa_shift_for_hi_word = |
| 1066 | meaningful_bits - HeapNumber::kMantissaBitsInTopWord; |
| 1067 | |
| 1068 | const int mantissa_shift_for_lo_word = |
| 1069 | kBitsPerInt - mantissa_shift_for_hi_word; |
| 1070 | |
| 1071 | __ li(scratch, biased_exponent << HeapNumber::kExponentShift); |
| 1072 | if (mantissa_shift_for_hi_word > 0) { |
| 1073 | __ sll(loword, hiword, mantissa_shift_for_lo_word); |
| 1074 | __ srl(hiword, hiword, mantissa_shift_for_hi_word); |
| 1075 | __ or_(hiword, scratch, hiword); |
| 1076 | } else { |
| 1077 | __ mov(loword, zero_reg); |
| 1078 | __ sll(hiword, hiword, mantissa_shift_for_hi_word); |
| 1079 | __ or_(hiword, scratch, hiword); |
| 1080 | } |
| 1081 | |
| 1082 | // If least significant bit of biased exponent was not 1 it was corrupted |
| 1083 | // by most significant bit of mantissa so we should fix that. |
| 1084 | if (!(biased_exponent & 1)) { |
| 1085 | __ li(scratch, 1 << HeapNumber::kExponentShift); |
| 1086 | __ nor(scratch, scratch, scratch); |
| 1087 | __ and_(hiword, hiword, scratch); |
| 1088 | } |
| 1089 | } |
| 1090 | |
| 1091 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1092 | #undef __ |
| 1093 | #define __ ACCESS_MASM(masm()) |
| 1094 | |
| 1095 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1096 | Register StubCompiler::CheckPrototypes(Handle<JSObject> object, |
| 1097 | Register object_reg, |
| 1098 | Handle<JSObject> holder, |
| 1099 | Register holder_reg, |
| 1100 | Register scratch1, |
| 1101 | Register scratch2, |
| 1102 | Handle<String> name, |
| 1103 | int save_at_depth, |
| 1104 | Label* miss) { |
| 1105 | // Make sure there's no overlap between holder and object registers. |
| 1106 | ASSERT(!scratch1.is(object_reg) && !scratch1.is(holder_reg)); |
| 1107 | ASSERT(!scratch2.is(object_reg) && !scratch2.is(holder_reg) |
| 1108 | && !scratch2.is(scratch1)); |
| 1109 | |
| 1110 | // Keep track of the current object in register reg. |
| 1111 | Register reg = object_reg; |
| 1112 | int depth = 0; |
| 1113 | |
| 1114 | if (save_at_depth == depth) { |
| 1115 | __ sw(reg, MemOperand(sp)); |
| 1116 | } |
| 1117 | |
| 1118 | // Check the maps in the prototype chain. |
| 1119 | // Traverse the prototype chain from the object and do map checks. |
| 1120 | Handle<JSObject> current = object; |
| 1121 | while (!current.is_identical_to(holder)) { |
| 1122 | ++depth; |
| 1123 | |
| 1124 | // Only global objects and objects that do not require access |
| 1125 | // checks are allowed in stubs. |
| 1126 | ASSERT(current->IsJSGlobalProxy() || !current->IsAccessCheckNeeded()); |
| 1127 | |
| 1128 | Handle<JSObject> prototype(JSObject::cast(current->GetPrototype())); |
| 1129 | if (!current->HasFastProperties() && |
| 1130 | !current->IsJSGlobalObject() && |
| 1131 | !current->IsJSGlobalProxy()) { |
| 1132 | if (!name->IsSymbol()) { |
| 1133 | name = factory()->LookupSymbol(name); |
| 1134 | } |
| 1135 | ASSERT(current->property_dictionary()->FindEntry(*name) == |
| 1136 | StringDictionary::kNotFound); |
| 1137 | |
| 1138 | GenerateDictionaryNegativeLookup(masm(), miss, reg, name, |
| 1139 | scratch1, scratch2); |
| 1140 | |
| 1141 | __ lw(scratch1, FieldMemOperand(reg, HeapObject::kMapOffset)); |
| 1142 | reg = holder_reg; // From now on the object will be in holder_reg. |
| 1143 | __ lw(reg, FieldMemOperand(scratch1, Map::kPrototypeOffset)); |
| 1144 | } else { |
| 1145 | Handle<Map> current_map(current->map()); |
jkummerow@chromium.org | 05ed9dd | 2012-01-23 14:42:48 +0000 | [diff] [blame] | 1146 | __ CheckMap(reg, scratch1, current_map, miss, DONT_DO_SMI_CHECK, |
| 1147 | ALLOW_ELEMENT_TRANSITION_MAPS); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1148 | // Check access rights to the global object. This has to happen after |
| 1149 | // the map check so that we know that the object is actually a global |
| 1150 | // object. |
| 1151 | if (current->IsJSGlobalProxy()) { |
| 1152 | __ CheckAccessGlobalProxy(reg, scratch2, miss); |
| 1153 | } |
| 1154 | reg = holder_reg; // From now on the object will be in holder_reg. |
| 1155 | |
| 1156 | if (heap()->InNewSpace(*prototype)) { |
| 1157 | // The prototype is in new space; we cannot store a reference to it |
| 1158 | // in the code. Load it from the map. |
| 1159 | __ lw(reg, FieldMemOperand(scratch1, Map::kPrototypeOffset)); |
| 1160 | } else { |
| 1161 | // The prototype is in old space; load it directly. |
| 1162 | __ li(reg, Operand(prototype)); |
| 1163 | } |
| 1164 | } |
| 1165 | |
| 1166 | if (save_at_depth == depth) { |
| 1167 | __ sw(reg, MemOperand(sp)); |
| 1168 | } |
| 1169 | |
| 1170 | // Go to the next object in the prototype chain. |
| 1171 | current = prototype; |
| 1172 | } |
| 1173 | |
| 1174 | // Log the check depth. |
| 1175 | LOG(masm()->isolate(), IntEvent("check-maps-depth", depth + 1)); |
| 1176 | |
| 1177 | // Check the holder map. |
jkummerow@chromium.org | 05ed9dd | 2012-01-23 14:42:48 +0000 | [diff] [blame] | 1178 | __ CheckMap(reg, scratch1, Handle<Map>(current->map()), miss, |
| 1179 | DONT_DO_SMI_CHECK, ALLOW_ELEMENT_TRANSITION_MAPS); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1180 | |
| 1181 | // Perform security check for access to the global object. |
| 1182 | ASSERT(holder->IsJSGlobalProxy() || !holder->IsAccessCheckNeeded()); |
| 1183 | if (holder->IsJSGlobalProxy()) { |
| 1184 | __ CheckAccessGlobalProxy(reg, scratch1, miss); |
| 1185 | } |
| 1186 | |
| 1187 | // If we've skipped any global objects, it's not enough to verify that |
| 1188 | // their maps haven't changed. We also need to check that the property |
| 1189 | // cell for the property is still empty. |
| 1190 | GenerateCheckPropertyCells(masm(), object, holder, name, scratch1, miss); |
| 1191 | |
| 1192 | // Return the register containing the holder. |
| 1193 | return reg; |
| 1194 | } |
| 1195 | |
| 1196 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1197 | void StubCompiler::GenerateLoadField(Handle<JSObject> object, |
| 1198 | Handle<JSObject> holder, |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1199 | Register receiver, |
| 1200 | Register scratch1, |
| 1201 | Register scratch2, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 1202 | Register scratch3, |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1203 | int index, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1204 | Handle<String> name, |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1205 | Label* miss) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1206 | // Check that the receiver isn't a smi. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1207 | __ JumpIfSmi(receiver, miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1208 | |
| 1209 | // Check that the maps haven't changed. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1210 | Register reg = CheckPrototypes( |
| 1211 | object, receiver, holder, scratch1, scratch2, scratch3, name, miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1212 | GenerateFastPropertyLoad(masm(), v0, reg, holder, index); |
| 1213 | __ Ret(); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1214 | } |
| 1215 | |
| 1216 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1217 | void StubCompiler::GenerateLoadConstant(Handle<JSObject> object, |
| 1218 | Handle<JSObject> holder, |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1219 | Register receiver, |
| 1220 | Register scratch1, |
| 1221 | Register scratch2, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 1222 | Register scratch3, |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 1223 | Handle<JSFunction> value, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1224 | Handle<String> name, |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1225 | Label* miss) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1226 | // Check that the receiver isn't a smi. |
| 1227 | __ JumpIfSmi(receiver, miss, scratch1); |
| 1228 | |
| 1229 | // Check that the maps haven't changed. |
danno@chromium.org | 1044a4d | 2012-04-30 12:34:39 +0000 | [diff] [blame] | 1230 | CheckPrototypes(object, receiver, holder, |
| 1231 | scratch1, scratch2, scratch3, name, miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1232 | |
| 1233 | // Return the constant value. |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 1234 | __ LoadHeapObject(v0, value); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1235 | __ Ret(); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1236 | } |
| 1237 | |
| 1238 | |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 1239 | void StubCompiler::GenerateDictionaryLoadCallback(Register receiver, |
| 1240 | Register name_reg, |
| 1241 | Register scratch1, |
| 1242 | Register scratch2, |
| 1243 | Register scratch3, |
| 1244 | Handle<AccessorInfo> callback, |
| 1245 | Handle<String> name, |
| 1246 | Label* miss) { |
verwaest@chromium.org | de64f72 | 2012-08-16 15:44:54 +0000 | [diff] [blame] | 1247 | ASSERT(!receiver.is(scratch1)); |
| 1248 | ASSERT(!receiver.is(scratch2)); |
| 1249 | ASSERT(!receiver.is(scratch3)); |
| 1250 | |
| 1251 | // Load the properties dictionary. |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 1252 | Register dictionary = scratch1; |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 1253 | __ lw(dictionary, FieldMemOperand(receiver, JSObject::kPropertiesOffset)); |
| 1254 | |
| 1255 | // Probe the dictionary. |
| 1256 | Label probe_done; |
| 1257 | StringDictionaryLookupStub::GeneratePositiveLookup(masm(), |
| 1258 | miss, |
| 1259 | &probe_done, |
| 1260 | dictionary, |
| 1261 | name_reg, |
verwaest@chromium.org | de64f72 | 2012-08-16 15:44:54 +0000 | [diff] [blame] | 1262 | scratch2, |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 1263 | scratch3); |
| 1264 | __ bind(&probe_done); |
| 1265 | |
verwaest@chromium.org | de64f72 | 2012-08-16 15:44:54 +0000 | [diff] [blame] | 1266 | // If probing finds an entry in the dictionary, scratch3 contains the |
| 1267 | // pointer into the dictionary. Check that the value is the callback. |
| 1268 | Register pointer = scratch3; |
| 1269 | const int kElementsStartOffset = StringDictionary::kHeaderSize + |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 1270 | StringDictionary::kElementsStartIndex * kPointerSize; |
| 1271 | const int kValueOffset = kElementsStartOffset + kPointerSize; |
verwaest@chromium.org | de64f72 | 2012-08-16 15:44:54 +0000 | [diff] [blame] | 1272 | __ lw(scratch2, FieldMemOperand(pointer, kValueOffset)); |
| 1273 | __ Branch(miss, ne, scratch2, Operand(callback)); |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 1274 | } |
| 1275 | |
| 1276 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1277 | void StubCompiler::GenerateLoadCallback(Handle<JSObject> object, |
| 1278 | Handle<JSObject> holder, |
| 1279 | Register receiver, |
| 1280 | Register name_reg, |
| 1281 | Register scratch1, |
| 1282 | Register scratch2, |
| 1283 | Register scratch3, |
verwaest@chromium.org | de64f72 | 2012-08-16 15:44:54 +0000 | [diff] [blame] | 1284 | Register scratch4, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1285 | Handle<AccessorInfo> callback, |
| 1286 | Handle<String> name, |
| 1287 | Label* miss) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1288 | // Check that the receiver isn't a smi. |
| 1289 | __ JumpIfSmi(receiver, miss, scratch1); |
| 1290 | |
| 1291 | // Check that the maps haven't changed. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1292 | Register reg = CheckPrototypes(object, receiver, holder, scratch1, |
| 1293 | scratch2, scratch3, name, miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1294 | |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 1295 | if (!holder->HasFastProperties() && !holder->IsJSGlobalObject()) { |
| 1296 | GenerateDictionaryLoadCallback( |
verwaest@chromium.org | de64f72 | 2012-08-16 15:44:54 +0000 | [diff] [blame] | 1297 | reg, name_reg, scratch2, scratch3, scratch4, callback, name, miss); |
mstarzinger@chromium.org | 471f2f1 | 2012-08-10 14:46:33 +0000 | [diff] [blame] | 1298 | } |
| 1299 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1300 | // Build AccessorInfo::args_ list on the stack and push property name below |
| 1301 | // the exit frame to make GC aware of them and store pointers to them. |
| 1302 | __ push(receiver); |
| 1303 | __ mov(scratch2, sp); // scratch2 = AccessorInfo::args_ |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1304 | if (heap()->InNewSpace(callback->data())) { |
| 1305 | __ li(scratch3, callback); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1306 | __ lw(scratch3, FieldMemOperand(scratch3, AccessorInfo::kDataOffset)); |
| 1307 | } else { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1308 | __ li(scratch3, Handle<Object>(callback->data())); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1309 | } |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1310 | __ Subu(sp, sp, 4 * kPointerSize); |
| 1311 | __ sw(reg, MemOperand(sp, 3 * kPointerSize)); |
| 1312 | __ sw(scratch3, MemOperand(sp, 2 * kPointerSize)); |
| 1313 | __ li(scratch3, Operand(ExternalReference::isolate_address())); |
| 1314 | __ sw(scratch3, MemOperand(sp, 1 * kPointerSize)); |
| 1315 | __ sw(name_reg, MemOperand(sp, 0 * kPointerSize)); |
| 1316 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1317 | __ mov(a2, scratch2); // Saved in case scratch2 == a1. |
| 1318 | __ mov(a1, sp); // a1 (first argument - see note below) = Handle<String> |
| 1319 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1320 | // NOTE: the O32 abi requires a0 to hold a special pointer when returning a |
| 1321 | // struct from the function (which is currently the case). This means we pass |
| 1322 | // the arguments in a1-a2 instead of a0-a1. TryCallApiFunctionAndReturn |
| 1323 | // will handle setting up a0. |
| 1324 | |
| 1325 | const int kApiStackSpace = 1; |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1326 | FrameScope frame_scope(masm(), StackFrame::MANUAL); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1327 | __ EnterExitFrame(false, kApiStackSpace); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1328 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1329 | // 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] | 1330 | // scratch2 (internal::Object** args_) as the data. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1331 | __ sw(a2, MemOperand(sp, kPointerSize)); |
| 1332 | // a2 (second argument - see note above) = AccessorInfo& |
| 1333 | __ Addu(a2, sp, kPointerSize); |
| 1334 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1335 | const int kStackUnwindSpace = 5; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1336 | Address getter_address = v8::ToCData<Address>(callback->getter()); |
| 1337 | ApiFunction fun(getter_address); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1338 | ExternalReference ref = |
| 1339 | ExternalReference(&fun, |
| 1340 | ExternalReference::DIRECT_GETTER_CALL, |
| 1341 | masm()->isolate()); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1342 | __ CallApiFunctionAndReturn(ref, kStackUnwindSpace); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1343 | } |
| 1344 | |
| 1345 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1346 | void StubCompiler::GenerateLoadInterceptor(Handle<JSObject> object, |
| 1347 | Handle<JSObject> interceptor_holder, |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1348 | LookupResult* lookup, |
| 1349 | Register receiver, |
| 1350 | Register name_reg, |
| 1351 | Register scratch1, |
| 1352 | Register scratch2, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 1353 | Register scratch3, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1354 | Handle<String> name, |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1355 | Label* miss) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1356 | ASSERT(interceptor_holder->HasNamedInterceptor()); |
| 1357 | ASSERT(!interceptor_holder->GetNamedInterceptor()->getter()->IsUndefined()); |
| 1358 | |
| 1359 | // Check that the receiver isn't a smi. |
| 1360 | __ JumpIfSmi(receiver, miss); |
| 1361 | |
| 1362 | // So far the most popular follow ups for interceptor loads are FIELD |
| 1363 | // and CALLBACKS, so inline only them, other cases may be added |
| 1364 | // later. |
| 1365 | bool compile_followup_inline = false; |
jkummerow@chromium.org | 05ed9dd | 2012-01-23 14:42:48 +0000 | [diff] [blame] | 1366 | if (lookup->IsFound() && lookup->IsCacheable()) { |
yangguo@chromium.org | de0db00 | 2012-06-22 13:44:28 +0000 | [diff] [blame] | 1367 | if (lookup->IsField()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1368 | compile_followup_inline = true; |
| 1369 | } else if (lookup->type() == CALLBACKS && |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1370 | lookup->GetCallbackObject()->IsAccessorInfo()) { |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 1371 | AccessorInfo* callback = AccessorInfo::cast(lookup->GetCallbackObject()); |
| 1372 | compile_followup_inline = callback->getter() != NULL && |
| 1373 | callback->IsCompatibleReceiver(*object); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1374 | } |
| 1375 | } |
| 1376 | |
| 1377 | if (compile_followup_inline) { |
| 1378 | // Compile the interceptor call, followed by inline code to load the |
| 1379 | // property from further up the prototype chain if the call fails. |
| 1380 | // Check that the maps haven't changed. |
| 1381 | Register holder_reg = CheckPrototypes(object, receiver, interceptor_holder, |
| 1382 | scratch1, scratch2, scratch3, |
| 1383 | name, miss); |
| 1384 | ASSERT(holder_reg.is(receiver) || holder_reg.is(scratch1)); |
| 1385 | |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 1386 | // Preserve the receiver register explicitly whenever it is different from |
| 1387 | // the holder and it is needed should the interceptor return without any |
| 1388 | // result. The CALLBACKS case needs the receiver to be passed into C++ code, |
| 1389 | // the FIELD case might cause a miss during the prototype check. |
| 1390 | bool must_perfrom_prototype_check = *interceptor_holder != lookup->holder(); |
| 1391 | bool must_preserve_receiver_reg = !receiver.is(holder_reg) && |
| 1392 | (lookup->type() == CALLBACKS || must_perfrom_prototype_check); |
| 1393 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1394 | // Save necessary data before invoking an interceptor. |
| 1395 | // Requires a frame to make GC aware of pushed pointers. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1396 | { |
| 1397 | FrameScope frame_scope(masm(), StackFrame::INTERNAL); |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 1398 | if (must_preserve_receiver_reg) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1399 | __ Push(receiver, holder_reg, name_reg); |
| 1400 | } else { |
| 1401 | __ Push(holder_reg, name_reg); |
| 1402 | } |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1403 | // Invoke an interceptor. Note: map checks from receiver to |
| 1404 | // interceptor's holder has been compiled before (see a caller |
| 1405 | // of this method). |
| 1406 | CompileCallLoadPropertyWithInterceptor(masm(), |
| 1407 | receiver, |
| 1408 | holder_reg, |
| 1409 | name_reg, |
| 1410 | interceptor_holder); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1411 | // Check if interceptor provided a value for property. If it's |
| 1412 | // the case, return immediately. |
| 1413 | Label interceptor_failed; |
| 1414 | __ LoadRoot(scratch1, Heap::kNoInterceptorResultSentinelRootIndex); |
| 1415 | __ Branch(&interceptor_failed, eq, v0, Operand(scratch1)); |
| 1416 | frame_scope.GenerateLeaveFrame(); |
| 1417 | __ Ret(); |
| 1418 | |
| 1419 | __ bind(&interceptor_failed); |
| 1420 | __ pop(name_reg); |
| 1421 | __ pop(holder_reg); |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 1422 | if (must_preserve_receiver_reg) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1423 | __ pop(receiver); |
| 1424 | } |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1425 | // Leave the internal frame. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1426 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1427 | // Check that the maps from interceptor's holder to lookup's holder |
| 1428 | // haven't changed. And load lookup's holder into |holder| register. |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 1429 | if (must_perfrom_prototype_check) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1430 | holder_reg = CheckPrototypes(interceptor_holder, |
| 1431 | holder_reg, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1432 | Handle<JSObject>(lookup->holder()), |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1433 | scratch1, |
| 1434 | scratch2, |
| 1435 | scratch3, |
| 1436 | name, |
| 1437 | miss); |
| 1438 | } |
| 1439 | |
yangguo@chromium.org | de0db00 | 2012-06-22 13:44:28 +0000 | [diff] [blame] | 1440 | if (lookup->IsField()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1441 | // We found FIELD property in prototype chain of interceptor's holder. |
| 1442 | // Retrieve a field from field's holder. |
| 1443 | GenerateFastPropertyLoad(masm(), v0, holder_reg, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1444 | Handle<JSObject>(lookup->holder()), |
| 1445 | lookup->GetFieldIndex()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1446 | __ Ret(); |
| 1447 | } else { |
| 1448 | // We found CALLBACKS property in prototype chain of interceptor's |
| 1449 | // holder. |
| 1450 | ASSERT(lookup->type() == CALLBACKS); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1451 | Handle<AccessorInfo> callback( |
| 1452 | AccessorInfo::cast(lookup->GetCallbackObject())); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1453 | ASSERT(callback->getter() != NULL); |
| 1454 | |
| 1455 | // Tail call to runtime. |
| 1456 | // Important invariant in CALLBACKS case: the code above must be |
| 1457 | // structured to never clobber |receiver| register. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1458 | __ li(scratch2, callback); |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1459 | |
| 1460 | __ Push(receiver, holder_reg); |
| 1461 | __ lw(scratch3, |
| 1462 | FieldMemOperand(scratch2, AccessorInfo::kDataOffset)); |
| 1463 | __ li(scratch1, Operand(ExternalReference::isolate_address())); |
| 1464 | __ Push(scratch3, scratch1, scratch2, name_reg); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1465 | |
| 1466 | ExternalReference ref = |
| 1467 | ExternalReference(IC_Utility(IC::kLoadCallbackProperty), |
| 1468 | masm()->isolate()); |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1469 | __ TailCallExternalReference(ref, 6, 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1470 | } |
| 1471 | } else { // !compile_followup_inline |
| 1472 | // Call the runtime system to load the interceptor. |
| 1473 | // Check that the maps haven't changed. |
| 1474 | Register holder_reg = CheckPrototypes(object, receiver, interceptor_holder, |
| 1475 | scratch1, scratch2, scratch3, |
| 1476 | name, miss); |
| 1477 | PushInterceptorArguments(masm(), receiver, holder_reg, |
| 1478 | name_reg, interceptor_holder); |
| 1479 | |
| 1480 | ExternalReference ref = ExternalReference( |
| 1481 | IC_Utility(IC::kLoadPropertyWithInterceptorForLoad), masm()->isolate()); |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1482 | __ TailCallExternalReference(ref, 6, 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1483 | } |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1484 | } |
| 1485 | |
| 1486 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1487 | void CallStubCompiler::GenerateNameCheck(Handle<String> name, Label* miss) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1488 | if (kind_ == Code::KEYED_CALL_IC) { |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1489 | __ Branch(miss, ne, a2, Operand(name)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1490 | } |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1491 | } |
| 1492 | |
| 1493 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1494 | void CallStubCompiler::GenerateGlobalReceiverCheck(Handle<JSObject> object, |
| 1495 | Handle<JSObject> holder, |
| 1496 | Handle<String> name, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 1497 | Label* miss) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1498 | ASSERT(holder->IsGlobalObject()); |
| 1499 | |
| 1500 | // Get the number of arguments. |
| 1501 | const int argc = arguments().immediate(); |
| 1502 | |
| 1503 | // Get the receiver from the stack. |
| 1504 | __ lw(a0, MemOperand(sp, argc * kPointerSize)); |
| 1505 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1506 | // Check that the maps haven't changed. |
mstarzinger@chromium.org | 3233d2f | 2012-03-14 11:16:03 +0000 | [diff] [blame] | 1507 | __ JumpIfSmi(a0, miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1508 | CheckPrototypes(object, a0, holder, a3, a1, t0, name, miss); |
kmillikin@chromium.org | 5d8f0e6 | 2010-03-24 08:21:20 +0000 | [diff] [blame] | 1509 | } |
| 1510 | |
| 1511 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1512 | void CallStubCompiler::GenerateLoadFunctionFromCell( |
| 1513 | Handle<JSGlobalPropertyCell> cell, |
| 1514 | Handle<JSFunction> function, |
| 1515 | Label* miss) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1516 | // Get the value from the cell. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1517 | __ li(a3, Operand(cell)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1518 | __ lw(a1, FieldMemOperand(a3, JSGlobalPropertyCell::kValueOffset)); |
| 1519 | |
| 1520 | // Check that the cell contains the same function. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1521 | if (heap()->InNewSpace(*function)) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1522 | // We can't embed a pointer to a function in new space so we have |
| 1523 | // to verify that the shared function info is unchanged. This has |
| 1524 | // the nice side effect that multiple closures based on the same |
| 1525 | // function can all use this call IC. Before we load through the |
| 1526 | // function, we have to verify that it still is a function. |
| 1527 | __ JumpIfSmi(a1, miss); |
| 1528 | __ GetObjectType(a1, a3, a3); |
| 1529 | __ Branch(miss, ne, a3, Operand(JS_FUNCTION_TYPE)); |
| 1530 | |
| 1531 | // Check the shared function info. Make sure it hasn't changed. |
| 1532 | __ li(a3, Handle<SharedFunctionInfo>(function->shared())); |
| 1533 | __ lw(t0, FieldMemOperand(a1, JSFunction::kSharedFunctionInfoOffset)); |
| 1534 | __ Branch(miss, ne, t0, Operand(a3)); |
| 1535 | } else { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1536 | __ Branch(miss, ne, a1, Operand(function)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1537 | } |
kmillikin@chromium.org | 5d8f0e6 | 2010-03-24 08:21:20 +0000 | [diff] [blame] | 1538 | } |
| 1539 | |
| 1540 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1541 | void CallStubCompiler::GenerateMissBranch() { |
| 1542 | Handle<Code> code = |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 1543 | isolate()->stub_cache()->ComputeCallMiss(arguments().immediate(), |
| 1544 | kind_, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1545 | extra_state_); |
| 1546 | __ Jump(code, RelocInfo::CODE_TARGET); |
| 1547 | } |
| 1548 | |
| 1549 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1550 | Handle<Code> CallStubCompiler::CompileCallField(Handle<JSObject> object, |
| 1551 | Handle<JSObject> holder, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 1552 | int index, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1553 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1554 | // ----------- S t a t e ------------- |
| 1555 | // -- a2 : name |
| 1556 | // -- ra : return address |
| 1557 | // ----------------------------------- |
| 1558 | Label miss; |
| 1559 | |
| 1560 | GenerateNameCheck(name, &miss); |
| 1561 | |
| 1562 | const int argc = arguments().immediate(); |
| 1563 | |
| 1564 | // Get the receiver of the function from the stack into a0. |
| 1565 | __ lw(a0, MemOperand(sp, argc * kPointerSize)); |
| 1566 | // Check that the receiver isn't a smi. |
| 1567 | __ JumpIfSmi(a0, &miss, t0); |
| 1568 | |
| 1569 | // Do the right check and compute the holder register. |
| 1570 | Register reg = CheckPrototypes(object, a0, holder, a1, a3, t0, name, &miss); |
| 1571 | GenerateFastPropertyLoad(masm(), a1, reg, holder, index); |
| 1572 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1573 | GenerateCallFunction(masm(), object, arguments(), &miss, extra_state_); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1574 | |
| 1575 | // Handle call cache miss. |
| 1576 | __ bind(&miss); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1577 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1578 | |
| 1579 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 1580 | return GetCode(Code::FIELD, name); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1581 | } |
| 1582 | |
| 1583 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1584 | Handle<Code> CallStubCompiler::CompileArrayPushCall( |
| 1585 | Handle<Object> object, |
| 1586 | Handle<JSObject> holder, |
| 1587 | Handle<JSGlobalPropertyCell> cell, |
| 1588 | Handle<JSFunction> function, |
| 1589 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1590 | // ----------- S t a t e ------------- |
| 1591 | // -- a2 : name |
| 1592 | // -- ra : return address |
| 1593 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero-based) |
| 1594 | // -- ... |
| 1595 | // -- sp[argc * 4] : receiver |
| 1596 | // ----------------------------------- |
| 1597 | |
| 1598 | // If object is not an array, bail out to regular call. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1599 | if (!object->IsJSArray() || !cell.is_null()) return Handle<Code>::null(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1600 | |
| 1601 | Label miss; |
| 1602 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1603 | GenerateNameCheck(name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1604 | |
| 1605 | Register receiver = a1; |
| 1606 | |
| 1607 | // Get the receiver from the stack. |
| 1608 | const int argc = arguments().immediate(); |
| 1609 | __ lw(receiver, MemOperand(sp, argc * kPointerSize)); |
| 1610 | |
| 1611 | // Check that the receiver isn't a smi. |
| 1612 | __ JumpIfSmi(receiver, &miss); |
| 1613 | |
| 1614 | // Check that the maps haven't changed. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1615 | CheckPrototypes(Handle<JSObject>::cast(object), receiver, holder, a3, v0, t0, |
| 1616 | name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1617 | |
| 1618 | if (argc == 0) { |
| 1619 | // Nothing to do, just return the length. |
| 1620 | __ lw(v0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1621 | __ Drop(argc + 1); |
| 1622 | __ Ret(); |
| 1623 | } else { |
| 1624 | Label call_builtin; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1625 | if (argc == 1) { // Otherwise fall through to call the builtin. |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 1626 | Label attempt_to_grow_elements; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1627 | |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1628 | Register elements = t2; |
| 1629 | Register end_elements = t1; |
| 1630 | // Get the elements array of the object. |
| 1631 | __ lw(elements, FieldMemOperand(receiver, JSArray::kElementsOffset)); |
| 1632 | |
| 1633 | // Check that the elements are in fast mode and writable. |
| 1634 | __ CheckMap(elements, |
| 1635 | v0, |
| 1636 | Heap::kFixedArrayMapRootIndex, |
| 1637 | &call_builtin, |
| 1638 | DONT_DO_SMI_CHECK); |
| 1639 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1640 | // Get the array's length into v0 and calculate new length. |
| 1641 | __ lw(v0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1642 | STATIC_ASSERT(kSmiTagSize == 1); |
| 1643 | STATIC_ASSERT(kSmiTag == 0); |
| 1644 | __ Addu(v0, v0, Operand(Smi::FromInt(argc))); |
| 1645 | |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1646 | // Get the elements' length. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1647 | __ lw(t0, FieldMemOperand(elements, FixedArray::kLengthOffset)); |
| 1648 | |
| 1649 | // Check if we could survive without allocation. |
| 1650 | __ Branch(&attempt_to_grow_elements, gt, v0, Operand(t0)); |
| 1651 | |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 1652 | // Check if value is a smi. |
| 1653 | Label with_write_barrier; |
| 1654 | __ lw(t0, MemOperand(sp, (argc - 1) * kPointerSize)); |
| 1655 | __ JumpIfNotSmi(t0, &with_write_barrier); |
| 1656 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1657 | // Save new length. |
| 1658 | __ sw(v0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1659 | |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1660 | // Store the value. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1661 | // We may need a register containing the address end_elements below, |
| 1662 | // so write back the value in end_elements. |
| 1663 | __ sll(end_elements, v0, kPointerSizeLog2 - kSmiTagSize); |
| 1664 | __ Addu(end_elements, elements, end_elements); |
| 1665 | const int kEndElementsOffset = |
| 1666 | FixedArray::kHeaderSize - kHeapObjectTag - argc * kPointerSize; |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1667 | __ Addu(end_elements, end_elements, kEndElementsOffset); |
| 1668 | __ sw(t0, MemOperand(end_elements)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1669 | |
| 1670 | // Check for a smi. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1671 | __ Drop(argc + 1); |
| 1672 | __ Ret(); |
| 1673 | |
| 1674 | __ bind(&with_write_barrier); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 1675 | |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1676 | __ lw(a3, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
| 1677 | |
| 1678 | if (FLAG_smi_only_arrays && !FLAG_trace_elements_transitions) { |
| 1679 | Label fast_object, not_fast_object; |
| 1680 | __ CheckFastObjectElements(a3, t3, ¬_fast_object); |
| 1681 | __ jmp(&fast_object); |
| 1682 | // In case of fast smi-only, convert to fast object, otherwise bail out. |
| 1683 | __ bind(¬_fast_object); |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 1684 | __ CheckFastSmiElements(a3, t3, &call_builtin); |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1685 | // edx: receiver |
| 1686 | // r3: map |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 1687 | Label try_holey_map; |
| 1688 | __ LoadTransitionedArrayMapConditional(FAST_SMI_ELEMENTS, |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1689 | FAST_ELEMENTS, |
| 1690 | a3, |
| 1691 | t3, |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 1692 | &try_holey_map); |
| 1693 | __ mov(a2, receiver); |
| 1694 | ElementsTransitionGenerator:: |
| 1695 | GenerateMapChangeElementsTransition(masm()); |
| 1696 | __ jmp(&fast_object); |
| 1697 | |
| 1698 | __ bind(&try_holey_map); |
| 1699 | __ LoadTransitionedArrayMapConditional(FAST_HOLEY_SMI_ELEMENTS, |
| 1700 | FAST_HOLEY_ELEMENTS, |
| 1701 | a3, |
| 1702 | t3, |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1703 | &call_builtin); |
| 1704 | __ mov(a2, receiver); |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 1705 | ElementsTransitionGenerator:: |
| 1706 | GenerateMapChangeElementsTransition(masm()); |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1707 | __ bind(&fast_object); |
| 1708 | } else { |
| 1709 | __ CheckFastObjectElements(a3, a3, &call_builtin); |
| 1710 | } |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 1711 | |
| 1712 | // Save new length. |
| 1713 | __ sw(v0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1714 | |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1715 | // Store the value. |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 1716 | // We may need a register containing the address end_elements below, |
| 1717 | // so write back the value in end_elements. |
| 1718 | __ sll(end_elements, v0, kPointerSizeLog2 - kSmiTagSize); |
| 1719 | __ Addu(end_elements, elements, end_elements); |
| 1720 | __ Addu(end_elements, end_elements, kEndElementsOffset); |
| 1721 | __ sw(t0, MemOperand(end_elements)); |
| 1722 | |
| 1723 | __ RecordWrite(elements, |
| 1724 | end_elements, |
| 1725 | t0, |
| 1726 | kRAHasNotBeenSaved, |
| 1727 | kDontSaveFPRegs, |
| 1728 | EMIT_REMEMBERED_SET, |
| 1729 | OMIT_SMI_CHECK); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1730 | __ Drop(argc + 1); |
| 1731 | __ Ret(); |
| 1732 | |
| 1733 | __ bind(&attempt_to_grow_elements); |
| 1734 | // v0: array's length + 1. |
| 1735 | // t0: elements' length. |
| 1736 | |
| 1737 | if (!FLAG_inline_new) { |
| 1738 | __ Branch(&call_builtin); |
| 1739 | } |
| 1740 | |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 1741 | __ lw(a2, MemOperand(sp, (argc - 1) * kPointerSize)); |
| 1742 | // Growing elements that are SMI-only requires special handling in case |
| 1743 | // the new element is non-Smi. For now, delegate to the builtin. |
| 1744 | Label no_fast_elements_check; |
| 1745 | __ JumpIfSmi(a2, &no_fast_elements_check); |
| 1746 | __ lw(t3, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
| 1747 | __ CheckFastObjectElements(t3, t3, &call_builtin); |
| 1748 | __ bind(&no_fast_elements_check); |
| 1749 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1750 | ExternalReference new_space_allocation_top = |
| 1751 | ExternalReference::new_space_allocation_top_address( |
| 1752 | masm()->isolate()); |
| 1753 | ExternalReference new_space_allocation_limit = |
| 1754 | ExternalReference::new_space_allocation_limit_address( |
| 1755 | masm()->isolate()); |
| 1756 | |
| 1757 | const int kAllocationDelta = 4; |
| 1758 | // Load top and check if it is the end of elements. |
| 1759 | __ sll(end_elements, v0, kPointerSizeLog2 - kSmiTagSize); |
| 1760 | __ Addu(end_elements, elements, end_elements); |
| 1761 | __ Addu(end_elements, end_elements, Operand(kEndElementsOffset)); |
| 1762 | __ li(t3, Operand(new_space_allocation_top)); |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1763 | __ lw(a3, MemOperand(t3)); |
| 1764 | __ Branch(&call_builtin, ne, end_elements, Operand(a3)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1765 | |
| 1766 | __ li(t5, Operand(new_space_allocation_limit)); |
| 1767 | __ lw(t5, MemOperand(t5)); |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1768 | __ Addu(a3, a3, Operand(kAllocationDelta * kPointerSize)); |
| 1769 | __ Branch(&call_builtin, hi, a3, Operand(t5)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1770 | |
| 1771 | // We fit and could grow elements. |
| 1772 | // Update new_space_allocation_top. |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1773 | __ sw(a3, MemOperand(t3)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1774 | // Push the argument. |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 1775 | __ sw(a2, MemOperand(end_elements)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1776 | // Fill the rest with holes. |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1777 | __ LoadRoot(a3, Heap::kTheHoleValueRootIndex); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1778 | for (int i = 1; i < kAllocationDelta; i++) { |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1779 | __ sw(a3, MemOperand(end_elements, i * kPointerSize)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1780 | } |
| 1781 | |
| 1782 | // Update elements' and array's sizes. |
| 1783 | __ sw(v0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1784 | __ Addu(t0, t0, Operand(Smi::FromInt(kAllocationDelta))); |
| 1785 | __ sw(t0, FieldMemOperand(elements, FixedArray::kLengthOffset)); |
| 1786 | |
| 1787 | // Elements are in new space, so write barrier is not required. |
| 1788 | __ Drop(argc + 1); |
| 1789 | __ Ret(); |
| 1790 | } |
| 1791 | __ bind(&call_builtin); |
| 1792 | __ TailCallExternalReference(ExternalReference(Builtins::c_ArrayPush, |
| 1793 | masm()->isolate()), |
| 1794 | argc + 1, |
| 1795 | 1); |
| 1796 | } |
| 1797 | |
| 1798 | // Handle call cache miss. |
| 1799 | __ bind(&miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1800 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1801 | |
| 1802 | // Return the generated code. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1803 | return GetCode(function); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 1804 | } |
| 1805 | |
| 1806 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1807 | Handle<Code> CallStubCompiler::CompileArrayPopCall( |
| 1808 | Handle<Object> object, |
| 1809 | Handle<JSObject> holder, |
| 1810 | Handle<JSGlobalPropertyCell> cell, |
| 1811 | Handle<JSFunction> function, |
| 1812 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1813 | // ----------- S t a t e ------------- |
| 1814 | // -- a2 : name |
| 1815 | // -- ra : return address |
| 1816 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero-based) |
| 1817 | // -- ... |
| 1818 | // -- sp[argc * 4] : receiver |
| 1819 | // ----------------------------------- |
| 1820 | |
| 1821 | // If object is not an array, bail out to regular call. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1822 | if (!object->IsJSArray() || !cell.is_null()) return Handle<Code>::null(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1823 | |
| 1824 | Label miss, return_undefined, call_builtin; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1825 | Register receiver = a1; |
| 1826 | Register elements = a3; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1827 | GenerateNameCheck(name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1828 | |
| 1829 | // Get the receiver from the stack. |
| 1830 | const int argc = arguments().immediate(); |
| 1831 | __ lw(receiver, MemOperand(sp, argc * kPointerSize)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1832 | // Check that the receiver isn't a smi. |
| 1833 | __ JumpIfSmi(receiver, &miss); |
| 1834 | |
| 1835 | // Check that the maps haven't changed. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1836 | CheckPrototypes(Handle<JSObject>::cast(object), receiver, holder, elements, |
| 1837 | t0, v0, name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1838 | |
| 1839 | // Get the elements array of the object. |
| 1840 | __ lw(elements, FieldMemOperand(receiver, JSArray::kElementsOffset)); |
| 1841 | |
| 1842 | // Check that the elements are in fast mode and writable. |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 1843 | __ CheckMap(elements, |
| 1844 | v0, |
| 1845 | Heap::kFixedArrayMapRootIndex, |
| 1846 | &call_builtin, |
| 1847 | DONT_DO_SMI_CHECK); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1848 | |
| 1849 | // Get the array's length into t0 and calculate new length. |
| 1850 | __ lw(t0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1851 | __ Subu(t0, t0, Operand(Smi::FromInt(1))); |
| 1852 | __ Branch(&return_undefined, lt, t0, Operand(zero_reg)); |
| 1853 | |
| 1854 | // Get the last element. |
| 1855 | __ LoadRoot(t2, Heap::kTheHoleValueRootIndex); |
| 1856 | STATIC_ASSERT(kSmiTagSize == 1); |
| 1857 | STATIC_ASSERT(kSmiTag == 0); |
| 1858 | // We can't address the last element in one operation. Compute the more |
| 1859 | // expensive shift first, and use an offset later on. |
| 1860 | __ sll(t1, t0, kPointerSizeLog2 - kSmiTagSize); |
| 1861 | __ Addu(elements, elements, t1); |
fschneider@chromium.org | 7d10be5 | 2012-04-10 12:30:14 +0000 | [diff] [blame] | 1862 | __ lw(v0, FieldMemOperand(elements, FixedArray::kHeaderSize)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1863 | __ Branch(&call_builtin, eq, v0, Operand(t2)); |
| 1864 | |
| 1865 | // Set the array's length. |
| 1866 | __ sw(t0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1867 | |
| 1868 | // Fill with the hole. |
fschneider@chromium.org | 7d10be5 | 2012-04-10 12:30:14 +0000 | [diff] [blame] | 1869 | __ sw(t2, FieldMemOperand(elements, FixedArray::kHeaderSize)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1870 | __ Drop(argc + 1); |
| 1871 | __ Ret(); |
| 1872 | |
| 1873 | __ bind(&return_undefined); |
| 1874 | __ LoadRoot(v0, Heap::kUndefinedValueRootIndex); |
| 1875 | __ Drop(argc + 1); |
| 1876 | __ Ret(); |
| 1877 | |
| 1878 | __ bind(&call_builtin); |
| 1879 | __ TailCallExternalReference(ExternalReference(Builtins::c_ArrayPop, |
| 1880 | masm()->isolate()), |
| 1881 | argc + 1, |
| 1882 | 1); |
| 1883 | |
| 1884 | // Handle call cache miss. |
| 1885 | __ bind(&miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1886 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1887 | |
| 1888 | // Return the generated code. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1889 | return GetCode(function); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1890 | } |
| 1891 | |
| 1892 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1893 | Handle<Code> CallStubCompiler::CompileStringCharCodeAtCall( |
| 1894 | Handle<Object> object, |
| 1895 | Handle<JSObject> holder, |
| 1896 | Handle<JSGlobalPropertyCell> cell, |
| 1897 | Handle<JSFunction> function, |
| 1898 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1899 | // ----------- S t a t e ------------- |
| 1900 | // -- a2 : function name |
| 1901 | // -- ra : return address |
| 1902 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero-based) |
| 1903 | // -- ... |
| 1904 | // -- sp[argc * 4] : receiver |
| 1905 | // ----------------------------------- |
| 1906 | |
| 1907 | // If object is not a string, bail out to regular call. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1908 | if (!object->IsString() || !cell.is_null()) return Handle<Code>::null(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1909 | |
| 1910 | const int argc = arguments().immediate(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1911 | Label miss; |
| 1912 | Label name_miss; |
| 1913 | Label index_out_of_range; |
| 1914 | |
| 1915 | Label* index_out_of_range_label = &index_out_of_range; |
| 1916 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 1917 | if (kind_ == Code::CALL_IC && |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1918 | (CallICBase::StringStubState::decode(extra_state_) == |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 1919 | DEFAULT_STRING_STUB)) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1920 | index_out_of_range_label = &miss; |
| 1921 | } |
| 1922 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1923 | GenerateNameCheck(name, &name_miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1924 | |
| 1925 | // Check that the maps starting from the prototype haven't changed. |
| 1926 | GenerateDirectLoadGlobalFunctionPrototype(masm(), |
| 1927 | Context::STRING_FUNCTION_INDEX, |
| 1928 | v0, |
| 1929 | &miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1930 | ASSERT(!object.is_identical_to(holder)); |
| 1931 | CheckPrototypes(Handle<JSObject>(JSObject::cast(object->GetPrototype())), |
| 1932 | v0, holder, a1, a3, t0, name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1933 | |
| 1934 | Register receiver = a1; |
| 1935 | Register index = t1; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1936 | Register result = v0; |
| 1937 | __ lw(receiver, MemOperand(sp, argc * kPointerSize)); |
| 1938 | if (argc > 0) { |
| 1939 | __ lw(index, MemOperand(sp, (argc - 1) * kPointerSize)); |
| 1940 | } else { |
| 1941 | __ LoadRoot(index, Heap::kUndefinedValueRootIndex); |
| 1942 | } |
| 1943 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1944 | StringCharCodeAtGenerator generator(receiver, |
| 1945 | index, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1946 | result, |
| 1947 | &miss, // When not a string. |
| 1948 | &miss, // When not a number. |
| 1949 | index_out_of_range_label, |
| 1950 | STRING_INDEX_IS_NUMBER); |
| 1951 | generator.GenerateFast(masm()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1952 | __ Drop(argc + 1); |
| 1953 | __ Ret(); |
| 1954 | |
| 1955 | StubRuntimeCallHelper call_helper; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1956 | generator.GenerateSlow(masm(), call_helper); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1957 | |
| 1958 | if (index_out_of_range.is_linked()) { |
| 1959 | __ bind(&index_out_of_range); |
| 1960 | __ LoadRoot(v0, Heap::kNanValueRootIndex); |
| 1961 | __ Drop(argc + 1); |
| 1962 | __ Ret(); |
| 1963 | } |
| 1964 | |
| 1965 | __ bind(&miss); |
| 1966 | // Restore function name in a2. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1967 | __ li(a2, name); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1968 | __ bind(&name_miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1969 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1970 | |
| 1971 | // Return the generated code. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1972 | return GetCode(function); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1973 | } |
| 1974 | |
| 1975 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1976 | Handle<Code> CallStubCompiler::CompileStringCharAtCall( |
| 1977 | Handle<Object> object, |
| 1978 | Handle<JSObject> holder, |
| 1979 | Handle<JSGlobalPropertyCell> cell, |
| 1980 | Handle<JSFunction> function, |
| 1981 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1982 | // ----------- S t a t e ------------- |
| 1983 | // -- a2 : function name |
| 1984 | // -- ra : return address |
| 1985 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero-based) |
| 1986 | // -- ... |
| 1987 | // -- sp[argc * 4] : receiver |
| 1988 | // ----------------------------------- |
| 1989 | |
| 1990 | // If object is not a string, bail out to regular call. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1991 | if (!object->IsString() || !cell.is_null()) return Handle<Code>::null(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1992 | |
| 1993 | const int argc = arguments().immediate(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1994 | Label miss; |
| 1995 | Label name_miss; |
| 1996 | Label index_out_of_range; |
| 1997 | Label* index_out_of_range_label = &index_out_of_range; |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 1998 | if (kind_ == Code::CALL_IC && |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1999 | (CallICBase::StringStubState::decode(extra_state_) == |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2000 | DEFAULT_STRING_STUB)) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2001 | index_out_of_range_label = &miss; |
| 2002 | } |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2003 | GenerateNameCheck(name, &name_miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2004 | |
| 2005 | // Check that the maps starting from the prototype haven't changed. |
| 2006 | GenerateDirectLoadGlobalFunctionPrototype(masm(), |
| 2007 | Context::STRING_FUNCTION_INDEX, |
| 2008 | v0, |
| 2009 | &miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2010 | ASSERT(!object.is_identical_to(holder)); |
| 2011 | CheckPrototypes(Handle<JSObject>(JSObject::cast(object->GetPrototype())), |
| 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 = v0; |
| 2015 | Register index = t1; |
danno@chromium.org | c612e02 | 2011-11-10 11:38:15 +0000 | [diff] [blame] | 2016 | Register scratch = a3; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2017 | Register result = v0; |
| 2018 | __ lw(receiver, MemOperand(sp, argc * kPointerSize)); |
| 2019 | if (argc > 0) { |
| 2020 | __ lw(index, MemOperand(sp, (argc - 1) * kPointerSize)); |
| 2021 | } else { |
| 2022 | __ LoadRoot(index, Heap::kUndefinedValueRootIndex); |
| 2023 | } |
| 2024 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2025 | StringCharAtGenerator generator(receiver, |
| 2026 | index, |
danno@chromium.org | c612e02 | 2011-11-10 11:38:15 +0000 | [diff] [blame] | 2027 | scratch, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2028 | result, |
| 2029 | &miss, // When not a string. |
| 2030 | &miss, // When not a number. |
| 2031 | index_out_of_range_label, |
| 2032 | STRING_INDEX_IS_NUMBER); |
| 2033 | generator.GenerateFast(masm()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2034 | __ Drop(argc + 1); |
| 2035 | __ Ret(); |
| 2036 | |
| 2037 | StubRuntimeCallHelper call_helper; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2038 | generator.GenerateSlow(masm(), call_helper); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2039 | |
| 2040 | if (index_out_of_range.is_linked()) { |
| 2041 | __ bind(&index_out_of_range); |
| 2042 | __ LoadRoot(v0, Heap::kEmptyStringRootIndex); |
| 2043 | __ Drop(argc + 1); |
| 2044 | __ Ret(); |
| 2045 | } |
| 2046 | |
| 2047 | __ bind(&miss); |
| 2048 | // Restore function name in a2. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2049 | __ li(a2, name); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2050 | __ bind(&name_miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2051 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2052 | |
| 2053 | // Return the generated code. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2054 | return GetCode(function); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2055 | } |
| 2056 | |
| 2057 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2058 | Handle<Code> CallStubCompiler::CompileStringFromCharCodeCall( |
| 2059 | Handle<Object> object, |
| 2060 | Handle<JSObject> holder, |
| 2061 | Handle<JSGlobalPropertyCell> cell, |
| 2062 | Handle<JSFunction> function, |
| 2063 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2064 | // ----------- S t a t e ------------- |
| 2065 | // -- a2 : function name |
| 2066 | // -- ra : return address |
| 2067 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero-based) |
| 2068 | // -- ... |
| 2069 | // -- sp[argc * 4] : receiver |
| 2070 | // ----------------------------------- |
| 2071 | |
| 2072 | const int argc = arguments().immediate(); |
| 2073 | |
| 2074 | // If the object is not a JSObject or we got an unexpected number of |
| 2075 | // arguments, bail out to the regular call. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2076 | if (!object->IsJSObject() || argc != 1) return Handle<Code>::null(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2077 | |
| 2078 | Label miss; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2079 | GenerateNameCheck(name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2080 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2081 | if (cell.is_null()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2082 | __ lw(a1, MemOperand(sp, 1 * kPointerSize)); |
| 2083 | |
| 2084 | STATIC_ASSERT(kSmiTag == 0); |
| 2085 | __ JumpIfSmi(a1, &miss); |
| 2086 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2087 | CheckPrototypes(Handle<JSObject>::cast(object), a1, holder, v0, a3, t0, |
| 2088 | name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2089 | } else { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2090 | ASSERT(cell->value() == *function); |
| 2091 | GenerateGlobalReceiverCheck(Handle<JSObject>::cast(object), holder, name, |
| 2092 | &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2093 | GenerateLoadFunctionFromCell(cell, function, &miss); |
| 2094 | } |
| 2095 | |
| 2096 | // Load the char code argument. |
| 2097 | Register code = a1; |
| 2098 | __ lw(code, MemOperand(sp, 0 * kPointerSize)); |
| 2099 | |
| 2100 | // Check the code is a smi. |
| 2101 | Label slow; |
| 2102 | STATIC_ASSERT(kSmiTag == 0); |
| 2103 | __ JumpIfNotSmi(code, &slow); |
| 2104 | |
| 2105 | // Convert the smi code to uint16. |
| 2106 | __ And(code, code, Operand(Smi::FromInt(0xffff))); |
| 2107 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2108 | StringCharFromCodeGenerator generator(code, v0); |
| 2109 | generator.GenerateFast(masm()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2110 | __ Drop(argc + 1); |
| 2111 | __ Ret(); |
| 2112 | |
| 2113 | StubRuntimeCallHelper call_helper; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2114 | generator.GenerateSlow(masm(), call_helper); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2115 | |
| 2116 | // Tail call the full function. We do not have to patch the receiver |
| 2117 | // because the function makes no use of it. |
| 2118 | __ bind(&slow); |
jkummerow@chromium.org | 05ed9dd | 2012-01-23 14:42:48 +0000 | [diff] [blame] | 2119 | __ InvokeFunction( |
| 2120 | function, arguments(), JUMP_FUNCTION, NullCallWrapper(), CALL_AS_METHOD); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2121 | |
| 2122 | __ bind(&miss); |
| 2123 | // a2: function name. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2124 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2125 | |
| 2126 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 2127 | return cell.is_null() ? GetCode(function) : GetCode(Code::NORMAL, name); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2128 | } |
| 2129 | |
| 2130 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2131 | Handle<Code> CallStubCompiler::CompileMathFloorCall( |
| 2132 | Handle<Object> object, |
| 2133 | Handle<JSObject> holder, |
| 2134 | Handle<JSGlobalPropertyCell> cell, |
| 2135 | Handle<JSFunction> function, |
| 2136 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2137 | // ----------- S t a t e ------------- |
| 2138 | // -- a2 : function name |
| 2139 | // -- ra : return address |
| 2140 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero-based) |
| 2141 | // -- ... |
| 2142 | // -- sp[argc * 4] : receiver |
| 2143 | // ----------------------------------- |
| 2144 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2145 | if (!CpuFeatures::IsSupported(FPU)) { |
| 2146 | return Handle<Code>::null(); |
| 2147 | } |
| 2148 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2149 | CpuFeatures::Scope scope_fpu(FPU); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2150 | const int argc = arguments().immediate(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2151 | // If the object is not a JSObject or we got an unexpected number of |
| 2152 | // arguments, bail out to the regular call. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2153 | if (!object->IsJSObject() || argc != 1) return Handle<Code>::null(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2154 | |
| 2155 | Label miss, slow; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2156 | GenerateNameCheck(name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2157 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2158 | if (cell.is_null()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2159 | __ lw(a1, MemOperand(sp, 1 * kPointerSize)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2160 | STATIC_ASSERT(kSmiTag == 0); |
| 2161 | __ JumpIfSmi(a1, &miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2162 | CheckPrototypes(Handle<JSObject>::cast(object), a1, holder, a0, a3, t0, |
| 2163 | name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2164 | } else { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2165 | ASSERT(cell->value() == *function); |
| 2166 | GenerateGlobalReceiverCheck(Handle<JSObject>::cast(object), holder, name, |
| 2167 | &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2168 | GenerateLoadFunctionFromCell(cell, function, &miss); |
| 2169 | } |
| 2170 | |
| 2171 | // Load the (only) argument into v0. |
| 2172 | __ lw(v0, MemOperand(sp, 0 * kPointerSize)); |
| 2173 | |
| 2174 | // If the argument is a smi, just return. |
| 2175 | STATIC_ASSERT(kSmiTag == 0); |
| 2176 | __ And(t0, v0, Operand(kSmiTagMask)); |
| 2177 | __ Drop(argc + 1, eq, t0, Operand(zero_reg)); |
| 2178 | __ Ret(eq, t0, Operand(zero_reg)); |
| 2179 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2180 | __ CheckMap(v0, a1, Heap::kHeapNumberMapRootIndex, &slow, DONT_DO_SMI_CHECK); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2181 | |
| 2182 | Label wont_fit_smi, no_fpu_error, restore_fcsr_and_return; |
| 2183 | |
| 2184 | // If fpu is enabled, we use the floor instruction. |
| 2185 | |
| 2186 | // Load the HeapNumber value. |
| 2187 | __ ldc1(f0, FieldMemOperand(v0, HeapNumber::kValueOffset)); |
| 2188 | |
| 2189 | // Backup FCSR. |
| 2190 | __ cfc1(a3, FCSR); |
| 2191 | // Clearing FCSR clears the exception mask with no side-effects. |
| 2192 | __ ctc1(zero_reg, FCSR); |
| 2193 | // Convert the argument to an integer. |
| 2194 | __ floor_w_d(f0, f0); |
| 2195 | |
| 2196 | // Start checking for special cases. |
| 2197 | // Get the argument exponent and clear the sign bit. |
| 2198 | __ lw(t1, FieldMemOperand(v0, HeapNumber::kValueOffset + kPointerSize)); |
| 2199 | __ And(t2, t1, Operand(~HeapNumber::kSignMask)); |
| 2200 | __ srl(t2, t2, HeapNumber::kMantissaBitsInTopWord); |
| 2201 | |
| 2202 | // Retrieve FCSR and check for fpu errors. |
| 2203 | __ cfc1(t5, FCSR); |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 2204 | __ And(t5, t5, Operand(kFCSRExceptionFlagMask)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2205 | __ Branch(&no_fpu_error, eq, t5, Operand(zero_reg)); |
| 2206 | |
| 2207 | // Check for NaN, Infinity, and -Infinity. |
| 2208 | // They are invariant through a Math.Floor call, so just |
| 2209 | // return the original argument. |
| 2210 | __ Subu(t3, t2, Operand(HeapNumber::kExponentMask |
| 2211 | >> HeapNumber::kMantissaBitsInTopWord)); |
| 2212 | __ Branch(&restore_fcsr_and_return, eq, t3, Operand(zero_reg)); |
| 2213 | // We had an overflow or underflow in the conversion. Check if we |
| 2214 | // have a big exponent. |
| 2215 | // If greater or equal, the argument is already round and in v0. |
| 2216 | __ Branch(&restore_fcsr_and_return, ge, t3, |
| 2217 | Operand(HeapNumber::kMantissaBits)); |
| 2218 | __ Branch(&wont_fit_smi); |
| 2219 | |
| 2220 | __ bind(&no_fpu_error); |
| 2221 | // Move the result back to v0. |
| 2222 | __ mfc1(v0, f0); |
| 2223 | // Check if the result fits into a smi. |
| 2224 | __ Addu(a1, v0, Operand(0x40000000)); |
| 2225 | __ Branch(&wont_fit_smi, lt, a1, Operand(zero_reg)); |
| 2226 | // Tag the result. |
| 2227 | STATIC_ASSERT(kSmiTag == 0); |
| 2228 | __ sll(v0, v0, kSmiTagSize); |
| 2229 | |
| 2230 | // Check for -0. |
| 2231 | __ Branch(&restore_fcsr_and_return, ne, v0, Operand(zero_reg)); |
| 2232 | // t1 already holds the HeapNumber exponent. |
| 2233 | __ And(t0, t1, Operand(HeapNumber::kSignMask)); |
| 2234 | // If our HeapNumber is negative it was -0, so load its address and return. |
| 2235 | // Else v0 is loaded with 0, so we can also just return. |
| 2236 | __ Branch(&restore_fcsr_and_return, eq, t0, Operand(zero_reg)); |
| 2237 | __ lw(v0, MemOperand(sp, 0 * kPointerSize)); |
| 2238 | |
| 2239 | __ bind(&restore_fcsr_and_return); |
| 2240 | // Restore FCSR and return. |
| 2241 | __ ctc1(a3, FCSR); |
| 2242 | |
| 2243 | __ Drop(argc + 1); |
| 2244 | __ Ret(); |
| 2245 | |
| 2246 | __ bind(&wont_fit_smi); |
| 2247 | // Restore FCSR and fall to slow case. |
| 2248 | __ ctc1(a3, FCSR); |
| 2249 | |
| 2250 | __ bind(&slow); |
| 2251 | // Tail call the full function. We do not have to patch the receiver |
| 2252 | // because the function makes no use of it. |
jkummerow@chromium.org | 05ed9dd | 2012-01-23 14:42:48 +0000 | [diff] [blame] | 2253 | __ InvokeFunction( |
| 2254 | function, arguments(), JUMP_FUNCTION, NullCallWrapper(), CALL_AS_METHOD); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2255 | |
| 2256 | __ bind(&miss); |
| 2257 | // a2: function name. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2258 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2259 | |
| 2260 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 2261 | return cell.is_null() ? GetCode(function) : GetCode(Code::NORMAL, name); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2262 | } |
| 2263 | |
| 2264 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2265 | Handle<Code> CallStubCompiler::CompileMathAbsCall( |
| 2266 | Handle<Object> object, |
| 2267 | Handle<JSObject> holder, |
| 2268 | Handle<JSGlobalPropertyCell> cell, |
| 2269 | Handle<JSFunction> function, |
| 2270 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2271 | // ----------- S t a t e ------------- |
| 2272 | // -- a2 : function name |
| 2273 | // -- ra : return address |
| 2274 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero-based) |
| 2275 | // -- ... |
| 2276 | // -- sp[argc * 4] : receiver |
| 2277 | // ----------------------------------- |
| 2278 | |
| 2279 | const int argc = arguments().immediate(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2280 | // If the object is not a JSObject or we got an unexpected number of |
| 2281 | // arguments, bail out to the regular call. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2282 | if (!object->IsJSObject() || argc != 1) return Handle<Code>::null(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2283 | |
| 2284 | Label miss; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2285 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2286 | GenerateNameCheck(name, &miss); |
| 2287 | if (cell.is_null()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2288 | __ lw(a1, MemOperand(sp, 1 * kPointerSize)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2289 | STATIC_ASSERT(kSmiTag == 0); |
| 2290 | __ JumpIfSmi(a1, &miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2291 | CheckPrototypes(Handle<JSObject>::cast(object), a1, holder, v0, a3, t0, |
| 2292 | name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2293 | } else { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2294 | ASSERT(cell->value() == *function); |
| 2295 | GenerateGlobalReceiverCheck(Handle<JSObject>::cast(object), holder, name, |
| 2296 | &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2297 | GenerateLoadFunctionFromCell(cell, function, &miss); |
| 2298 | } |
| 2299 | |
| 2300 | // Load the (only) argument into v0. |
| 2301 | __ lw(v0, MemOperand(sp, 0 * kPointerSize)); |
| 2302 | |
| 2303 | // Check if the argument is a smi. |
| 2304 | Label not_smi; |
| 2305 | STATIC_ASSERT(kSmiTag == 0); |
| 2306 | __ JumpIfNotSmi(v0, ¬_smi); |
| 2307 | |
| 2308 | // Do bitwise not or do nothing depending on the sign of the |
| 2309 | // argument. |
| 2310 | __ sra(t0, v0, kBitsPerInt - 1); |
| 2311 | __ Xor(a1, v0, t0); |
| 2312 | |
| 2313 | // Add 1 or do nothing depending on the sign of the argument. |
| 2314 | __ Subu(v0, a1, t0); |
| 2315 | |
| 2316 | // If the result is still negative, go to the slow case. |
| 2317 | // This only happens for the most negative smi. |
| 2318 | Label slow; |
| 2319 | __ Branch(&slow, lt, v0, Operand(zero_reg)); |
| 2320 | |
| 2321 | // Smi case done. |
| 2322 | __ Drop(argc + 1); |
| 2323 | __ Ret(); |
| 2324 | |
| 2325 | // Check if the argument is a heap number and load its exponent and |
| 2326 | // sign. |
| 2327 | __ bind(¬_smi); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2328 | __ CheckMap(v0, a1, Heap::kHeapNumberMapRootIndex, &slow, DONT_DO_SMI_CHECK); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2329 | __ lw(a1, FieldMemOperand(v0, HeapNumber::kExponentOffset)); |
| 2330 | |
| 2331 | // Check the sign of the argument. If the argument is positive, |
| 2332 | // just return it. |
| 2333 | Label negative_sign; |
| 2334 | __ And(t0, a1, Operand(HeapNumber::kSignMask)); |
| 2335 | __ Branch(&negative_sign, ne, t0, Operand(zero_reg)); |
| 2336 | __ Drop(argc + 1); |
| 2337 | __ Ret(); |
| 2338 | |
| 2339 | // If the argument is negative, clear the sign, and return a new |
| 2340 | // number. |
| 2341 | __ bind(&negative_sign); |
| 2342 | __ Xor(a1, a1, Operand(HeapNumber::kSignMask)); |
| 2343 | __ lw(a3, FieldMemOperand(v0, HeapNumber::kMantissaOffset)); |
| 2344 | __ LoadRoot(t2, Heap::kHeapNumberMapRootIndex); |
| 2345 | __ AllocateHeapNumber(v0, t0, t1, t2, &slow); |
| 2346 | __ sw(a1, FieldMemOperand(v0, HeapNumber::kExponentOffset)); |
| 2347 | __ sw(a3, FieldMemOperand(v0, HeapNumber::kMantissaOffset)); |
| 2348 | __ Drop(argc + 1); |
| 2349 | __ Ret(); |
| 2350 | |
| 2351 | // Tail call the full function. We do not have to patch the receiver |
| 2352 | // because the function makes no use of it. |
| 2353 | __ bind(&slow); |
jkummerow@chromium.org | 05ed9dd | 2012-01-23 14:42:48 +0000 | [diff] [blame] | 2354 | __ InvokeFunction( |
| 2355 | function, arguments(), JUMP_FUNCTION, NullCallWrapper(), CALL_AS_METHOD); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2356 | |
| 2357 | __ bind(&miss); |
| 2358 | // a2: function name. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2359 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2360 | |
| 2361 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 2362 | return cell.is_null() ? GetCode(function) : GetCode(Code::NORMAL, name); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2363 | } |
| 2364 | |
| 2365 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2366 | Handle<Code> CallStubCompiler::CompileFastApiCall( |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2367 | const CallOptimization& optimization, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2368 | Handle<Object> object, |
| 2369 | Handle<JSObject> holder, |
| 2370 | Handle<JSGlobalPropertyCell> cell, |
| 2371 | Handle<JSFunction> function, |
| 2372 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2373 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2374 | Counters* counters = isolate()->counters(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2375 | |
| 2376 | ASSERT(optimization.is_simple_api_call()); |
| 2377 | // Bail out if object is a global object as we don't want to |
| 2378 | // repatch it to global receiver. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2379 | if (object->IsGlobalObject()) return Handle<Code>::null(); |
| 2380 | if (!cell.is_null()) return Handle<Code>::null(); |
| 2381 | if (!object->IsJSObject()) return Handle<Code>::null(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2382 | int depth = optimization.GetPrototypeDepthOfExpectedType( |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2383 | Handle<JSObject>::cast(object), holder); |
| 2384 | if (depth == kInvalidProtoDepth) return Handle<Code>::null(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2385 | |
| 2386 | Label miss, miss_before_stack_reserved; |
| 2387 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2388 | GenerateNameCheck(name, &miss_before_stack_reserved); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2389 | |
| 2390 | // Get the receiver from the stack. |
| 2391 | const int argc = arguments().immediate(); |
| 2392 | __ lw(a1, MemOperand(sp, argc * kPointerSize)); |
| 2393 | |
| 2394 | // Check that the receiver isn't a smi. |
| 2395 | __ JumpIfSmi(a1, &miss_before_stack_reserved); |
| 2396 | |
| 2397 | __ IncrementCounter(counters->call_const(), 1, a0, a3); |
| 2398 | __ IncrementCounter(counters->call_const_fast_api(), 1, a0, a3); |
| 2399 | |
| 2400 | ReserveSpaceForFastApiCall(masm(), a0); |
| 2401 | |
| 2402 | // 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] | 2403 | CheckPrototypes(Handle<JSObject>::cast(object), a1, holder, a0, a3, t0, name, |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2404 | depth, &miss); |
| 2405 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2406 | GenerateFastApiDirectCall(masm(), optimization, argc); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2407 | |
| 2408 | __ bind(&miss); |
| 2409 | FreeSpaceForFastApiCall(masm()); |
| 2410 | |
| 2411 | __ bind(&miss_before_stack_reserved); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2412 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2413 | |
| 2414 | // Return the generated code. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2415 | return GetCode(function); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2416 | } |
| 2417 | |
| 2418 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2419 | Handle<Code> CallStubCompiler::CompileCallConstant(Handle<Object> object, |
| 2420 | Handle<JSObject> holder, |
| 2421 | Handle<JSFunction> function, |
| 2422 | Handle<String> name, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2423 | CheckType check) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2424 | // ----------- S t a t e ------------- |
| 2425 | // -- a2 : name |
| 2426 | // -- ra : return address |
| 2427 | // ----------------------------------- |
| 2428 | if (HasCustomCallGenerator(function)) { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2429 | Handle<Code> code = CompileCustomCall(object, holder, |
| 2430 | Handle<JSGlobalPropertyCell>::null(), |
| 2431 | function, name); |
| 2432 | // A null handle means bail out to the regular compiler code below. |
| 2433 | if (!code.is_null()) return code; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2434 | } |
| 2435 | |
| 2436 | Label miss; |
| 2437 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2438 | GenerateNameCheck(name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2439 | |
| 2440 | // Get the receiver from the stack. |
| 2441 | const int argc = arguments().immediate(); |
| 2442 | __ lw(a1, MemOperand(sp, argc * kPointerSize)); |
| 2443 | |
| 2444 | // Check that the receiver isn't a smi. |
| 2445 | if (check != NUMBER_CHECK) { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2446 | __ JumpIfSmi(a1, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2447 | } |
| 2448 | |
| 2449 | // Make sure that it's okay not to patch the on stack receiver |
| 2450 | // unless we're doing a receiver map check. |
| 2451 | ASSERT(!object->IsGlobalObject() || check == RECEIVER_MAP_CHECK); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2452 | switch (check) { |
| 2453 | case RECEIVER_MAP_CHECK: |
| 2454 | __ IncrementCounter(masm()->isolate()->counters()->call_const(), |
| 2455 | 1, a0, a3); |
| 2456 | |
| 2457 | // Check that the maps haven't changed. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2458 | CheckPrototypes(Handle<JSObject>::cast(object), a1, holder, a0, a3, t0, |
| 2459 | name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2460 | |
| 2461 | // Patch the receiver on the stack with the global proxy if |
| 2462 | // necessary. |
| 2463 | if (object->IsGlobalObject()) { |
| 2464 | __ lw(a3, FieldMemOperand(a1, GlobalObject::kGlobalReceiverOffset)); |
| 2465 | __ sw(a3, MemOperand(sp, argc * kPointerSize)); |
| 2466 | } |
| 2467 | break; |
| 2468 | |
| 2469 | case STRING_CHECK: |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 2470 | if (function->IsBuiltin() || !function->shared()->is_classic_mode()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2471 | // Check that the object is a two-byte string or a symbol. |
| 2472 | __ GetObjectType(a1, a3, a3); |
| 2473 | __ Branch(&miss, Ugreater_equal, a3, Operand(FIRST_NONSTRING_TYPE)); |
| 2474 | // Check that the maps starting from the prototype haven't changed. |
| 2475 | GenerateDirectLoadGlobalFunctionPrototype( |
| 2476 | masm(), Context::STRING_FUNCTION_INDEX, a0, &miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2477 | CheckPrototypes( |
| 2478 | Handle<JSObject>(JSObject::cast(object->GetPrototype())), |
| 2479 | a0, holder, a3, a1, t0, name, &miss); |
| 2480 | } else { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2481 | // Calling non-strict non-builtins with a value as the receiver |
| 2482 | // requires boxing. |
| 2483 | __ jmp(&miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2484 | } |
| 2485 | break; |
| 2486 | |
| 2487 | case NUMBER_CHECK: |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 2488 | if (function->IsBuiltin() || !function->shared()->is_classic_mode()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2489 | Label fast; |
| 2490 | // Check that the object is a smi or a heap number. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2491 | __ JumpIfSmi(a1, &fast); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2492 | __ GetObjectType(a1, a0, a0); |
| 2493 | __ Branch(&miss, ne, a0, Operand(HEAP_NUMBER_TYPE)); |
| 2494 | __ bind(&fast); |
| 2495 | // Check that the maps starting from the prototype haven't changed. |
| 2496 | GenerateDirectLoadGlobalFunctionPrototype( |
| 2497 | masm(), Context::NUMBER_FUNCTION_INDEX, a0, &miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2498 | CheckPrototypes( |
| 2499 | Handle<JSObject>(JSObject::cast(object->GetPrototype())), |
| 2500 | a0, holder, a3, a1, t0, name, &miss); |
| 2501 | } else { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2502 | // Calling non-strict non-builtins with a value as the receiver |
| 2503 | // requires boxing. |
| 2504 | __ jmp(&miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2505 | } |
| 2506 | break; |
| 2507 | |
| 2508 | case BOOLEAN_CHECK: |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 2509 | if (function->IsBuiltin() || !function->shared()->is_classic_mode()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2510 | Label fast; |
| 2511 | // Check that the object is a boolean. |
| 2512 | __ LoadRoot(t0, Heap::kTrueValueRootIndex); |
| 2513 | __ Branch(&fast, eq, a1, Operand(t0)); |
| 2514 | __ LoadRoot(t0, Heap::kFalseValueRootIndex); |
| 2515 | __ Branch(&miss, ne, a1, Operand(t0)); |
| 2516 | __ bind(&fast); |
| 2517 | // Check that the maps starting from the prototype haven't changed. |
| 2518 | GenerateDirectLoadGlobalFunctionPrototype( |
| 2519 | masm(), Context::BOOLEAN_FUNCTION_INDEX, a0, &miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2520 | CheckPrototypes( |
| 2521 | Handle<JSObject>(JSObject::cast(object->GetPrototype())), |
| 2522 | a0, holder, a3, a1, t0, name, &miss); |
| 2523 | } else { |
| 2524 | // Calling non-strict non-builtins with a value as the receiver |
| 2525 | // requires boxing. |
| 2526 | __ jmp(&miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2527 | } |
| 2528 | break; |
| 2529 | } |
| 2530 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2531 | CallKind call_kind = CallICBase::Contextual::decode(extra_state_) |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 2532 | ? CALL_AS_FUNCTION |
| 2533 | : CALL_AS_METHOD; |
jkummerow@chromium.org | 05ed9dd | 2012-01-23 14:42:48 +0000 | [diff] [blame] | 2534 | __ InvokeFunction( |
| 2535 | function, arguments(), JUMP_FUNCTION, NullCallWrapper(), call_kind); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2536 | |
| 2537 | // Handle call cache miss. |
| 2538 | __ bind(&miss); |
| 2539 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2540 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2541 | |
| 2542 | // Return the generated code. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2543 | return GetCode(function); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2544 | } |
| 2545 | |
| 2546 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2547 | Handle<Code> CallStubCompiler::CompileCallInterceptor(Handle<JSObject> object, |
| 2548 | Handle<JSObject> holder, |
| 2549 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2550 | // ----------- S t a t e ------------- |
| 2551 | // -- a2 : name |
| 2552 | // -- ra : return address |
| 2553 | // ----------------------------------- |
| 2554 | |
| 2555 | Label miss; |
| 2556 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2557 | GenerateNameCheck(name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2558 | |
| 2559 | // Get the number of arguments. |
| 2560 | const int argc = arguments().immediate(); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2561 | LookupResult lookup(isolate()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2562 | LookupPostInterceptor(holder, name, &lookup); |
| 2563 | |
| 2564 | // Get the receiver from the stack. |
| 2565 | __ lw(a1, MemOperand(sp, argc * kPointerSize)); |
| 2566 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2567 | CallInterceptorCompiler compiler(this, arguments(), a2, extra_state_); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2568 | compiler.Compile(masm(), object, holder, name, &lookup, a1, a3, t0, a0, |
| 2569 | &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2570 | |
| 2571 | // Move returned value, the function to call, to a1. |
| 2572 | __ mov(a1, v0); |
| 2573 | // Restore receiver. |
| 2574 | __ lw(a0, MemOperand(sp, argc * kPointerSize)); |
| 2575 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2576 | GenerateCallFunction(masm(), object, arguments(), &miss, extra_state_); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2577 | |
| 2578 | // Handle call cache miss. |
| 2579 | __ bind(&miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2580 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2581 | |
| 2582 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 2583 | return GetCode(Code::INTERCEPTOR, name); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2584 | } |
| 2585 | |
| 2586 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2587 | Handle<Code> CallStubCompiler::CompileCallGlobal( |
| 2588 | Handle<JSObject> object, |
| 2589 | Handle<GlobalObject> holder, |
| 2590 | Handle<JSGlobalPropertyCell> cell, |
| 2591 | Handle<JSFunction> function, |
| 2592 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2593 | // ----------- S t a t e ------------- |
| 2594 | // -- a2 : name |
| 2595 | // -- ra : return address |
| 2596 | // ----------------------------------- |
| 2597 | |
| 2598 | if (HasCustomCallGenerator(function)) { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2599 | Handle<Code> code = CompileCustomCall(object, holder, cell, function, name); |
| 2600 | // A null handle means bail out to the regular compiler code below. |
| 2601 | if (!code.is_null()) return code; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2602 | } |
| 2603 | |
| 2604 | Label miss; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2605 | GenerateNameCheck(name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2606 | |
| 2607 | // Get the number of arguments. |
| 2608 | const int argc = arguments().immediate(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2609 | GenerateGlobalReceiverCheck(object, holder, name, &miss); |
| 2610 | GenerateLoadFunctionFromCell(cell, function, &miss); |
| 2611 | |
| 2612 | // Patch the receiver on the stack with the global proxy if |
| 2613 | // necessary. |
| 2614 | if (object->IsGlobalObject()) { |
| 2615 | __ lw(a3, FieldMemOperand(a0, GlobalObject::kGlobalReceiverOffset)); |
| 2616 | __ sw(a3, MemOperand(sp, argc * kPointerSize)); |
| 2617 | } |
| 2618 | |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 2619 | // Set up the context (function already in r1). |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2620 | __ lw(cp, FieldMemOperand(a1, JSFunction::kContextOffset)); |
| 2621 | |
| 2622 | // Jump to the cached code (tail call). |
| 2623 | Counters* counters = masm()->isolate()->counters(); |
| 2624 | __ IncrementCounter(counters->call_global_inline(), 1, a3, t0); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2625 | ParameterCount expected(function->shared()->formal_parameter_count()); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2626 | CallKind call_kind = CallICBase::Contextual::decode(extra_state_) |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2627 | ? CALL_AS_FUNCTION |
| 2628 | : CALL_AS_METHOD; |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2629 | // We call indirectly through the code field in the function to |
| 2630 | // allow recompilation to take effect without changing any of the |
| 2631 | // call sites. |
| 2632 | __ lw(a3, FieldMemOperand(a1, JSFunction::kCodeEntryOffset)); |
| 2633 | __ InvokeCode(a3, expected, arguments(), JUMP_FUNCTION, |
| 2634 | NullCallWrapper(), call_kind); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2635 | |
| 2636 | // Handle call cache miss. |
| 2637 | __ bind(&miss); |
| 2638 | __ IncrementCounter(counters->call_global_inline_miss(), 1, a1, a3); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2639 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2640 | |
| 2641 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 2642 | return GetCode(Code::NORMAL, name); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2643 | } |
| 2644 | |
| 2645 | |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 2646 | Handle<Code> StoreStubCompiler::CompileStoreField(Handle<JSObject> object, |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2647 | int index, |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 2648 | Handle<Map> transition, |
| 2649 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2650 | // ----------- S t a t e ------------- |
| 2651 | // -- a0 : value |
| 2652 | // -- a1 : receiver |
| 2653 | // -- a2 : name |
| 2654 | // -- ra : return address |
| 2655 | // ----------------------------------- |
| 2656 | Label miss; |
| 2657 | |
| 2658 | // Name register might be clobbered. |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 2659 | GenerateStoreField(masm(), |
| 2660 | object, |
| 2661 | index, |
| 2662 | transition, |
| 2663 | name, |
| 2664 | a1, a2, a3, t0, |
| 2665 | &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2666 | __ bind(&miss); |
| 2667 | __ li(a2, Operand(Handle<String>(name))); // Restore name. |
| 2668 | Handle<Code> ic = masm()->isolate()->builtins()->Builtins::StoreIC_Miss(); |
| 2669 | __ Jump(ic, RelocInfo::CODE_TARGET); |
| 2670 | |
| 2671 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 2672 | return GetCode(transition.is_null() |
| 2673 | ? Code::FIELD |
| 2674 | : Code::MAP_TRANSITION, name); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2675 | } |
| 2676 | |
| 2677 | |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 2678 | Handle<Code> StoreStubCompiler::CompileStoreCallback( |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 2679 | Handle<String> name, |
| 2680 | Handle<JSObject> receiver, |
| 2681 | Handle<JSObject> holder, |
| 2682 | Handle<AccessorInfo> callback) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2683 | // ----------- S t a t e ------------- |
| 2684 | // -- a0 : value |
| 2685 | // -- a1 : receiver |
| 2686 | // -- a2 : name |
| 2687 | // -- ra : return address |
| 2688 | // ----------------------------------- |
| 2689 | Label miss; |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 2690 | // Check that the maps haven't changed. |
| 2691 | __ JumpIfSmi(a1, &miss, a3); |
| 2692 | CheckPrototypes(receiver, a1, holder, a3, t0, t1, name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2693 | |
| 2694 | // Stub never generated for non-global objects that require access |
| 2695 | // checks. |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 2696 | ASSERT(holder->IsJSGlobalProxy() || !holder->IsAccessCheckNeeded()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2697 | |
| 2698 | __ push(a1); // Receiver. |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 2699 | __ li(a3, Operand(callback)); // Callback info. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2700 | __ Push(a3, a2, a0); |
| 2701 | |
| 2702 | // Do tail-call to the runtime system. |
| 2703 | ExternalReference store_callback_property = |
| 2704 | ExternalReference(IC_Utility(IC::kStoreCallbackProperty), |
| 2705 | masm()->isolate()); |
| 2706 | __ TailCallExternalReference(store_callback_property, 4, 1); |
| 2707 | |
| 2708 | // Handle store cache miss. |
| 2709 | __ bind(&miss); |
| 2710 | Handle<Code> ic = masm()->isolate()->builtins()->StoreIC_Miss(); |
| 2711 | __ Jump(ic, RelocInfo::CODE_TARGET); |
| 2712 | |
| 2713 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 2714 | return GetCode(Code::CALLBACKS, name); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2715 | } |
| 2716 | |
| 2717 | |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 2718 | #undef __ |
| 2719 | #define __ ACCESS_MASM(masm) |
| 2720 | |
| 2721 | |
| 2722 | void StoreStubCompiler::GenerateStoreViaSetter( |
| 2723 | MacroAssembler* masm, |
| 2724 | Handle<JSFunction> setter) { |
| 2725 | // ----------- S t a t e ------------- |
| 2726 | // -- a0 : value |
| 2727 | // -- a1 : receiver |
| 2728 | // -- a2 : name |
| 2729 | // -- ra : return address |
| 2730 | // ----------------------------------- |
| 2731 | { |
| 2732 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 2733 | |
| 2734 | // Save value register, so we can restore it later. |
| 2735 | __ push(a0); |
| 2736 | |
| 2737 | if (!setter.is_null()) { |
| 2738 | // Call the JavaScript setter with receiver and value on the stack. |
| 2739 | __ push(a1); |
| 2740 | __ push(a0); |
| 2741 | ParameterCount actual(1); |
| 2742 | __ InvokeFunction(setter, actual, CALL_FUNCTION, NullCallWrapper(), |
| 2743 | CALL_AS_METHOD); |
| 2744 | } else { |
| 2745 | // If we generate a global code snippet for deoptimization only, remember |
| 2746 | // the place to continue after deoptimization. |
| 2747 | masm->isolate()->heap()->SetSetterStubDeoptPCOffset(masm->pc_offset()); |
| 2748 | } |
| 2749 | |
| 2750 | // We have to return the passed value, not the return value of the setter. |
| 2751 | __ pop(v0); |
| 2752 | |
| 2753 | // Restore context register. |
| 2754 | __ lw(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
| 2755 | } |
| 2756 | __ Ret(); |
| 2757 | } |
| 2758 | |
| 2759 | |
| 2760 | #undef __ |
| 2761 | #define __ ACCESS_MASM(masm()) |
| 2762 | |
| 2763 | |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 2764 | Handle<Code> StoreStubCompiler::CompileStoreViaSetter( |
svenpanne@chromium.org | 619781a | 2012-07-05 08:22:44 +0000 | [diff] [blame] | 2765 | Handle<String> name, |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 2766 | Handle<JSObject> receiver, |
svenpanne@chromium.org | 619781a | 2012-07-05 08:22:44 +0000 | [diff] [blame] | 2767 | Handle<JSObject> holder, |
| 2768 | Handle<JSFunction> setter) { |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 2769 | // ----------- S t a t e ------------- |
| 2770 | // -- a0 : value |
| 2771 | // -- a1 : receiver |
| 2772 | // -- a2 : name |
| 2773 | // -- ra : return address |
| 2774 | // ----------------------------------- |
| 2775 | Label miss; |
| 2776 | |
svenpanne@chromium.org | 619781a | 2012-07-05 08:22:44 +0000 | [diff] [blame] | 2777 | // Check that the maps haven't changed. |
| 2778 | __ JumpIfSmi(a1, &miss); |
| 2779 | CheckPrototypes(receiver, a1, holder, a3, t0, t1, name, &miss); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 2780 | |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 2781 | GenerateStoreViaSetter(masm(), setter); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 2782 | |
| 2783 | __ bind(&miss); |
| 2784 | Handle<Code> ic = masm()->isolate()->builtins()->StoreIC_Miss(); |
| 2785 | __ Jump(ic, RelocInfo::CODE_TARGET); |
| 2786 | |
| 2787 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 2788 | return GetCode(Code::CALLBACKS, name); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 2789 | } |
| 2790 | |
| 2791 | |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 2792 | Handle<Code> StoreStubCompiler::CompileStoreInterceptor( |
| 2793 | Handle<JSObject> receiver, |
| 2794 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2795 | // ----------- S t a t e ------------- |
| 2796 | // -- a0 : value |
| 2797 | // -- a1 : receiver |
| 2798 | // -- a2 : name |
| 2799 | // -- ra : return address |
| 2800 | // ----------------------------------- |
| 2801 | Label miss; |
| 2802 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2803 | // Check that the map of the object hasn't changed. |
jkummerow@chromium.org | 05ed9dd | 2012-01-23 14:42:48 +0000 | [diff] [blame] | 2804 | __ CheckMap(a1, a3, Handle<Map>(receiver->map()), &miss, |
| 2805 | DO_SMI_CHECK, ALLOW_ELEMENT_TRANSITION_MAPS); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2806 | |
| 2807 | // Perform global security token check if needed. |
| 2808 | if (receiver->IsJSGlobalProxy()) { |
| 2809 | __ CheckAccessGlobalProxy(a1, a3, &miss); |
| 2810 | } |
| 2811 | |
| 2812 | // Stub is never generated for non-global objects that require access |
| 2813 | // checks. |
| 2814 | ASSERT(receiver->IsJSGlobalProxy() || !receiver->IsAccessCheckNeeded()); |
| 2815 | |
| 2816 | __ Push(a1, a2, a0); // Receiver, name, value. |
| 2817 | |
| 2818 | __ li(a0, Operand(Smi::FromInt(strict_mode_))); |
| 2819 | __ push(a0); // Strict mode. |
| 2820 | |
| 2821 | // Do tail-call to the runtime system. |
| 2822 | ExternalReference store_ic_property = |
| 2823 | ExternalReference(IC_Utility(IC::kStoreInterceptorProperty), |
| 2824 | masm()->isolate()); |
| 2825 | __ TailCallExternalReference(store_ic_property, 4, 1); |
| 2826 | |
| 2827 | // Handle store cache miss. |
| 2828 | __ bind(&miss); |
| 2829 | Handle<Code> ic = masm()->isolate()->builtins()->Builtins::StoreIC_Miss(); |
| 2830 | __ Jump(ic, RelocInfo::CODE_TARGET); |
| 2831 | |
| 2832 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 2833 | return GetCode(Code::INTERCEPTOR, name); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 2834 | } |
| 2835 | |
| 2836 | |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 2837 | Handle<Code> StoreStubCompiler::CompileStoreGlobal( |
| 2838 | Handle<GlobalObject> object, |
| 2839 | Handle<JSGlobalPropertyCell> cell, |
| 2840 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2841 | // ----------- S t a t e ------------- |
| 2842 | // -- a0 : value |
| 2843 | // -- a1 : receiver |
| 2844 | // -- a2 : name |
| 2845 | // -- ra : return address |
| 2846 | // ----------------------------------- |
| 2847 | Label miss; |
| 2848 | |
| 2849 | // Check that the map of the global has not changed. |
| 2850 | __ lw(a3, FieldMemOperand(a1, HeapObject::kMapOffset)); |
| 2851 | __ Branch(&miss, ne, a3, Operand(Handle<Map>(object->map()))); |
| 2852 | |
| 2853 | // Check that the value in the cell is not the hole. If it is, this |
| 2854 | // cell could have been deleted and reintroducing the global needs |
| 2855 | // to update the property details in the property dictionary of the |
| 2856 | // global object. We bail out to the runtime system to do that. |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 2857 | __ li(t0, Operand(cell)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2858 | __ LoadRoot(t1, Heap::kTheHoleValueRootIndex); |
| 2859 | __ lw(t2, FieldMemOperand(t0, JSGlobalPropertyCell::kValueOffset)); |
| 2860 | __ Branch(&miss, eq, t1, Operand(t2)); |
| 2861 | |
| 2862 | // Store the value in the cell. |
| 2863 | __ sw(a0, FieldMemOperand(t0, JSGlobalPropertyCell::kValueOffset)); |
| 2864 | __ mov(v0, a0); // Stored value must be returned in v0. |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 2865 | // Cells are always rescanned, so no write barrier here. |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 2866 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2867 | Counters* counters = masm()->isolate()->counters(); |
| 2868 | __ IncrementCounter(counters->named_store_global_inline(), 1, a1, a3); |
| 2869 | __ Ret(); |
| 2870 | |
| 2871 | // Handle store cache miss. |
| 2872 | __ bind(&miss); |
| 2873 | __ IncrementCounter(counters->named_store_global_inline_miss(), 1, a1, a3); |
| 2874 | Handle<Code> ic = masm()->isolate()->builtins()->StoreIC_Miss(); |
| 2875 | __ Jump(ic, RelocInfo::CODE_TARGET); |
| 2876 | |
| 2877 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 2878 | return GetCode(Code::NORMAL, name); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2879 | } |
| 2880 | |
| 2881 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2882 | Handle<Code> LoadStubCompiler::CompileLoadNonexistent(Handle<String> name, |
| 2883 | Handle<JSObject> object, |
| 2884 | Handle<JSObject> last) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2885 | // ----------- S t a t e ------------- |
| 2886 | // -- a0 : receiver |
| 2887 | // -- ra : return address |
| 2888 | // ----------------------------------- |
| 2889 | Label miss; |
| 2890 | |
| 2891 | // Check that the receiver is not a smi. |
| 2892 | __ JumpIfSmi(a0, &miss); |
| 2893 | |
| 2894 | // Check the maps of the full prototype chain. |
| 2895 | CheckPrototypes(object, a0, last, a3, a1, t0, name, &miss); |
| 2896 | |
| 2897 | // If the last object in the prototype chain is a global object, |
| 2898 | // check that the global property cell is empty. |
| 2899 | if (last->IsGlobalObject()) { |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2900 | GenerateCheckPropertyCell( |
| 2901 | masm(), Handle<GlobalObject>::cast(last), name, a1, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2902 | } |
| 2903 | |
| 2904 | // Return undefined if maps of the full prototype chain is still the same. |
| 2905 | __ LoadRoot(v0, Heap::kUndefinedValueRootIndex); |
| 2906 | __ Ret(); |
| 2907 | |
| 2908 | __ bind(&miss); |
| 2909 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
| 2910 | |
| 2911 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 2912 | return GetCode(Code::NONEXISTENT, factory()->empty_string()); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2913 | } |
| 2914 | |
| 2915 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2916 | Handle<Code> LoadStubCompiler::CompileLoadField(Handle<JSObject> object, |
| 2917 | Handle<JSObject> holder, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2918 | int index, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2919 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2920 | // ----------- S t a t e ------------- |
| 2921 | // -- a0 : receiver |
| 2922 | // -- a2 : name |
| 2923 | // -- ra : return address |
| 2924 | // ----------------------------------- |
| 2925 | Label miss; |
| 2926 | |
| 2927 | __ mov(v0, a0); |
| 2928 | |
| 2929 | GenerateLoadField(object, holder, v0, a3, a1, t0, index, name, &miss); |
| 2930 | __ bind(&miss); |
| 2931 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
| 2932 | |
| 2933 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 2934 | return GetCode(Code::FIELD, name); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2935 | } |
| 2936 | |
| 2937 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2938 | Handle<Code> LoadStubCompiler::CompileLoadCallback( |
| 2939 | Handle<String> name, |
| 2940 | Handle<JSObject> object, |
| 2941 | Handle<JSObject> holder, |
| 2942 | Handle<AccessorInfo> callback) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2943 | // ----------- S t a t e ------------- |
| 2944 | // -- a0 : receiver |
| 2945 | // -- a2 : name |
| 2946 | // -- ra : return address |
| 2947 | // ----------------------------------- |
| 2948 | Label miss; |
verwaest@chromium.org | de64f72 | 2012-08-16 15:44:54 +0000 | [diff] [blame] | 2949 | GenerateLoadCallback(object, holder, a0, a2, a3, a1, t0, t1, callback, name, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2950 | &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2951 | __ bind(&miss); |
| 2952 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
| 2953 | |
| 2954 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 2955 | return GetCode(Code::CALLBACKS, name); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2956 | } |
| 2957 | |
| 2958 | |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame^] | 2959 | #undef __ |
| 2960 | #define __ ACCESS_MASM(masm) |
| 2961 | |
| 2962 | |
| 2963 | void LoadStubCompiler::GenerateLoadViaGetter(MacroAssembler* masm, |
| 2964 | Handle<JSFunction> getter) { |
| 2965 | // ----------- S t a t e ------------- |
| 2966 | // -- a0 : receiver |
| 2967 | // -- a2 : name |
| 2968 | // -- ra : return address |
| 2969 | // ----------------------------------- |
| 2970 | { |
| 2971 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 2972 | |
| 2973 | if (!getter.is_null()) { |
| 2974 | // Call the JavaScript getter with the receiver on the stack. |
| 2975 | __ push(a0); |
| 2976 | ParameterCount actual(0); |
| 2977 | __ InvokeFunction(getter, actual, CALL_FUNCTION, NullCallWrapper(), |
| 2978 | CALL_AS_METHOD); |
| 2979 | } else { |
| 2980 | // If we generate a global code snippet for deoptimization only, remember |
| 2981 | // the place to continue after deoptimization. |
| 2982 | masm->isolate()->heap()->SetGetterStubDeoptPCOffset(masm->pc_offset()); |
| 2983 | } |
| 2984 | |
| 2985 | // Restore context register. |
| 2986 | __ lw(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
| 2987 | } |
| 2988 | __ Ret(); |
| 2989 | } |
| 2990 | |
| 2991 | |
| 2992 | #undef __ |
| 2993 | #define __ ACCESS_MASM(masm()) |
| 2994 | |
| 2995 | |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 2996 | Handle<Code> LoadStubCompiler::CompileLoadViaGetter( |
| 2997 | Handle<String> name, |
| 2998 | Handle<JSObject> receiver, |
| 2999 | Handle<JSObject> holder, |
| 3000 | Handle<JSFunction> getter) { |
| 3001 | // ----------- S t a t e ------------- |
| 3002 | // -- a0 : receiver |
| 3003 | // -- a2 : name |
| 3004 | // -- ra : return address |
| 3005 | // ----------------------------------- |
| 3006 | Label miss; |
| 3007 | |
| 3008 | // Check that the maps haven't changed. |
| 3009 | __ JumpIfSmi(a0, &miss); |
| 3010 | CheckPrototypes(receiver, a0, holder, a3, t0, a1, name, &miss); |
| 3011 | |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame^] | 3012 | GenerateLoadViaGetter(masm(), getter); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3013 | |
| 3014 | __ bind(&miss); |
| 3015 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
| 3016 | |
| 3017 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 3018 | return GetCode(Code::CALLBACKS, name); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3019 | } |
| 3020 | |
| 3021 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 3022 | Handle<Code> LoadStubCompiler::CompileLoadConstant(Handle<JSObject> object, |
| 3023 | Handle<JSObject> holder, |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 3024 | Handle<JSFunction> value, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 3025 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3026 | // ----------- S t a t e ------------- |
| 3027 | // -- a0 : receiver |
| 3028 | // -- a2 : name |
| 3029 | // -- ra : return address |
| 3030 | // ----------------------------------- |
| 3031 | Label miss; |
| 3032 | |
| 3033 | GenerateLoadConstant(object, holder, a0, a3, a1, t0, value, name, &miss); |
| 3034 | __ bind(&miss); |
| 3035 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
| 3036 | |
| 3037 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 3038 | return GetCode(Code::CONSTANT_FUNCTION, name); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3039 | } |
| 3040 | |
| 3041 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3042 | Handle<Code> LoadStubCompiler::CompileLoadInterceptor(Handle<JSObject> object, |
| 3043 | Handle<JSObject> holder, |
| 3044 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3045 | // ----------- S t a t e ------------- |
| 3046 | // -- a0 : receiver |
| 3047 | // -- a2 : name |
| 3048 | // -- ra : return address |
| 3049 | // -- [sp] : receiver |
| 3050 | // ----------------------------------- |
| 3051 | Label miss; |
| 3052 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 3053 | LookupResult lookup(isolate()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3054 | LookupPostInterceptor(holder, name, &lookup); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3055 | GenerateLoadInterceptor(object, holder, &lookup, a0, a2, a3, a1, t0, name, |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3056 | &miss); |
| 3057 | __ bind(&miss); |
| 3058 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
| 3059 | |
| 3060 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 3061 | return GetCode(Code::INTERCEPTOR, name); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3062 | } |
| 3063 | |
| 3064 | |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3065 | Handle<Code> LoadStubCompiler::CompileLoadGlobal( |
| 3066 | Handle<JSObject> object, |
| 3067 | Handle<GlobalObject> holder, |
| 3068 | Handle<JSGlobalPropertyCell> cell, |
| 3069 | Handle<String> name, |
| 3070 | bool is_dont_delete) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3071 | // ----------- S t a t e ------------- |
| 3072 | // -- a0 : receiver |
| 3073 | // -- a2 : name |
| 3074 | // -- ra : return address |
| 3075 | // ----------------------------------- |
| 3076 | Label miss; |
| 3077 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3078 | // Check that the map of the global has not changed. |
mstarzinger@chromium.org | 3233d2f | 2012-03-14 11:16:03 +0000 | [diff] [blame] | 3079 | __ JumpIfSmi(a0, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3080 | CheckPrototypes(object, a0, holder, a3, t0, a1, name, &miss); |
| 3081 | |
| 3082 | // Get the value from the cell. |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3083 | __ li(a3, Operand(cell)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3084 | __ lw(t0, FieldMemOperand(a3, JSGlobalPropertyCell::kValueOffset)); |
| 3085 | |
| 3086 | // Check for deleted property if property can actually be deleted. |
| 3087 | if (!is_dont_delete) { |
| 3088 | __ LoadRoot(at, Heap::kTheHoleValueRootIndex); |
| 3089 | __ Branch(&miss, eq, t0, Operand(at)); |
| 3090 | } |
| 3091 | |
| 3092 | __ mov(v0, t0); |
| 3093 | Counters* counters = masm()->isolate()->counters(); |
| 3094 | __ IncrementCounter(counters->named_load_global_stub(), 1, a1, a3); |
| 3095 | __ Ret(); |
| 3096 | |
| 3097 | __ bind(&miss); |
| 3098 | __ IncrementCounter(counters->named_load_global_stub_miss(), 1, a1, a3); |
| 3099 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
| 3100 | |
| 3101 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 3102 | return GetCode(Code::NORMAL, name); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3103 | } |
| 3104 | |
| 3105 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 3106 | Handle<Code> KeyedLoadStubCompiler::CompileLoadField(Handle<String> name, |
| 3107 | Handle<JSObject> receiver, |
| 3108 | Handle<JSObject> holder, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3109 | int index) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3110 | // ----------- S t a t e ------------- |
| 3111 | // -- ra : return address |
| 3112 | // -- a0 : key |
| 3113 | // -- a1 : receiver |
| 3114 | // ----------------------------------- |
| 3115 | Label miss; |
| 3116 | |
| 3117 | // Check the key is the cached one. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 3118 | __ Branch(&miss, ne, a0, Operand(name)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3119 | |
| 3120 | GenerateLoadField(receiver, holder, a1, a2, a3, t0, index, name, &miss); |
| 3121 | __ bind(&miss); |
| 3122 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 3123 | |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 3124 | return GetCode(Code::FIELD, name); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3125 | } |
| 3126 | |
| 3127 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3128 | Handle<Code> KeyedLoadStubCompiler::CompileLoadCallback( |
| 3129 | Handle<String> name, |
| 3130 | Handle<JSObject> receiver, |
| 3131 | Handle<JSObject> holder, |
| 3132 | Handle<AccessorInfo> callback) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3133 | // ----------- S t a t e ------------- |
| 3134 | // -- ra : return address |
| 3135 | // -- a0 : key |
| 3136 | // -- a1 : receiver |
| 3137 | // ----------------------------------- |
| 3138 | Label miss; |
| 3139 | |
| 3140 | // Check the key is the cached one. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3141 | __ Branch(&miss, ne, a0, Operand(name)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3142 | |
verwaest@chromium.org | de64f72 | 2012-08-16 15:44:54 +0000 | [diff] [blame] | 3143 | GenerateLoadCallback(receiver, holder, a1, a0, a2, a3, t0, t1, callback, |
| 3144 | name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3145 | __ bind(&miss); |
| 3146 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 3147 | |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 3148 | return GetCode(Code::CALLBACKS, name); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3149 | } |
| 3150 | |
| 3151 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 3152 | Handle<Code> KeyedLoadStubCompiler::CompileLoadConstant( |
| 3153 | Handle<String> name, |
| 3154 | Handle<JSObject> receiver, |
| 3155 | Handle<JSObject> holder, |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 3156 | Handle<JSFunction> value) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3157 | // ----------- S t a t e ------------- |
| 3158 | // -- ra : return address |
| 3159 | // -- a0 : key |
| 3160 | // -- a1 : receiver |
| 3161 | // ----------------------------------- |
| 3162 | Label miss; |
| 3163 | |
| 3164 | // Check the key is the cached one. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 3165 | __ Branch(&miss, ne, a0, Operand(name)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3166 | |
| 3167 | GenerateLoadConstant(receiver, holder, a1, a2, a3, t0, value, name, &miss); |
| 3168 | __ bind(&miss); |
| 3169 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 3170 | |
| 3171 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 3172 | return GetCode(Code::CONSTANT_FUNCTION, name); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3173 | } |
| 3174 | |
| 3175 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3176 | Handle<Code> KeyedLoadStubCompiler::CompileLoadInterceptor( |
| 3177 | Handle<JSObject> receiver, |
| 3178 | Handle<JSObject> holder, |
| 3179 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3180 | // ----------- S t a t e ------------- |
| 3181 | // -- ra : return address |
| 3182 | // -- a0 : key |
| 3183 | // -- a1 : receiver |
| 3184 | // ----------------------------------- |
| 3185 | Label miss; |
| 3186 | |
| 3187 | // Check the key is the cached one. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3188 | __ Branch(&miss, ne, a0, Operand(name)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3189 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 3190 | LookupResult lookup(isolate()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3191 | LookupPostInterceptor(holder, name, &lookup); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3192 | GenerateLoadInterceptor(receiver, holder, &lookup, a1, a0, a2, a3, t0, name, |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3193 | &miss); |
| 3194 | __ bind(&miss); |
| 3195 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 3196 | |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 3197 | return GetCode(Code::INTERCEPTOR, name); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3198 | } |
| 3199 | |
| 3200 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 3201 | Handle<Code> KeyedLoadStubCompiler::CompileLoadArrayLength( |
| 3202 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3203 | // ----------- S t a t e ------------- |
| 3204 | // -- ra : return address |
| 3205 | // -- a0 : key |
| 3206 | // -- a1 : receiver |
| 3207 | // ----------------------------------- |
| 3208 | Label miss; |
| 3209 | |
| 3210 | // Check the key is the cached one. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 3211 | __ Branch(&miss, ne, a0, Operand(name)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3212 | |
| 3213 | GenerateLoadArrayLength(masm(), a1, a2, &miss); |
| 3214 | __ bind(&miss); |
| 3215 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 3216 | |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 3217 | return GetCode(Code::CALLBACKS, name); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3218 | } |
| 3219 | |
| 3220 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 3221 | Handle<Code> KeyedLoadStubCompiler::CompileLoadStringLength( |
| 3222 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3223 | // ----------- S t a t e ------------- |
| 3224 | // -- ra : return address |
| 3225 | // -- a0 : key |
| 3226 | // -- a1 : receiver |
| 3227 | // ----------------------------------- |
| 3228 | Label miss; |
| 3229 | |
| 3230 | Counters* counters = masm()->isolate()->counters(); |
| 3231 | __ IncrementCounter(counters->keyed_load_string_length(), 1, a2, a3); |
| 3232 | |
| 3233 | // Check the key is the cached one. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 3234 | __ Branch(&miss, ne, a0, Operand(name)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3235 | |
| 3236 | GenerateLoadStringLength(masm(), a1, a2, a3, &miss, true); |
| 3237 | __ bind(&miss); |
| 3238 | __ DecrementCounter(counters->keyed_load_string_length(), 1, a2, a3); |
| 3239 | |
| 3240 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 3241 | |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 3242 | return GetCode(Code::CALLBACKS, name); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3243 | } |
| 3244 | |
| 3245 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 3246 | Handle<Code> KeyedLoadStubCompiler::CompileLoadFunctionPrototype( |
| 3247 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3248 | // ----------- S t a t e ------------- |
| 3249 | // -- ra : return address |
| 3250 | // -- a0 : key |
| 3251 | // -- a1 : receiver |
| 3252 | // ----------------------------------- |
| 3253 | Label miss; |
| 3254 | |
| 3255 | Counters* counters = masm()->isolate()->counters(); |
| 3256 | __ IncrementCounter(counters->keyed_load_function_prototype(), 1, a2, a3); |
| 3257 | |
| 3258 | // Check the name hasn't changed. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 3259 | __ Branch(&miss, ne, a0, Operand(name)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3260 | |
| 3261 | GenerateLoadFunctionPrototype(masm(), a1, a2, a3, &miss); |
| 3262 | __ bind(&miss); |
| 3263 | __ DecrementCounter(counters->keyed_load_function_prototype(), 1, a2, a3); |
| 3264 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 3265 | |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 3266 | return GetCode(Code::CALLBACKS, name); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3267 | } |
| 3268 | |
| 3269 | |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3270 | Handle<Code> KeyedLoadStubCompiler::CompileLoadElement( |
| 3271 | Handle<Map> receiver_map) { |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3272 | // ----------- S t a t e ------------- |
| 3273 | // -- ra : return address |
| 3274 | // -- a0 : key |
| 3275 | // -- a1 : receiver |
| 3276 | // ----------------------------------- |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3277 | ElementsKind elements_kind = receiver_map->elements_kind(); |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3278 | Handle<Code> stub = KeyedLoadElementStub(elements_kind).GetCode(); |
| 3279 | |
| 3280 | __ DispatchMap(a1, a2, receiver_map, stub, DO_SMI_CHECK); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3281 | |
| 3282 | Handle<Code> ic = isolate()->builtins()->KeyedLoadIC_Miss(); |
| 3283 | __ Jump(ic, RelocInfo::CODE_TARGET); |
| 3284 | |
| 3285 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 3286 | return GetCode(Code::NORMAL, factory()->empty_string()); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3287 | } |
| 3288 | |
| 3289 | |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3290 | Handle<Code> KeyedLoadStubCompiler::CompileLoadPolymorphic( |
| 3291 | MapHandleList* receiver_maps, |
| 3292 | CodeHandleList* handler_ics) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3293 | // ----------- S t a t e ------------- |
| 3294 | // -- ra : return address |
| 3295 | // -- a0 : key |
| 3296 | // -- a1 : receiver |
| 3297 | // ----------------------------------- |
| 3298 | Label miss; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3299 | __ JumpIfSmi(a1, &miss); |
| 3300 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3301 | int receiver_count = receiver_maps->length(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3302 | __ lw(a2, FieldMemOperand(a1, HeapObject::kMapOffset)); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3303 | for (int current = 0; current < receiver_count; ++current) { |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3304 | __ Jump(handler_ics->at(current), RelocInfo::CODE_TARGET, |
| 3305 | eq, a2, Operand(receiver_maps->at(current))); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3306 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3307 | |
| 3308 | __ bind(&miss); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3309 | Handle<Code> miss_ic = isolate()->builtins()->KeyedLoadIC_Miss(); |
| 3310 | __ Jump(miss_ic, RelocInfo::CODE_TARGET); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3311 | |
| 3312 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 3313 | return GetCode(Code::NORMAL, factory()->empty_string(), MEGAMORPHIC); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3314 | } |
| 3315 | |
| 3316 | |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3317 | Handle<Code> KeyedStoreStubCompiler::CompileStoreField(Handle<JSObject> object, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3318 | int index, |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3319 | Handle<Map> transition, |
| 3320 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3321 | // ----------- S t a t e ------------- |
| 3322 | // -- a0 : value |
| 3323 | // -- a1 : key |
| 3324 | // -- a2 : receiver |
| 3325 | // -- ra : return address |
| 3326 | // ----------------------------------- |
| 3327 | |
| 3328 | Label miss; |
| 3329 | |
| 3330 | Counters* counters = masm()->isolate()->counters(); |
| 3331 | __ IncrementCounter(counters->keyed_store_field(), 1, a3, t0); |
| 3332 | |
| 3333 | // Check that the name has not changed. |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3334 | __ Branch(&miss, ne, a1, Operand(name)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3335 | |
| 3336 | // a3 is used as scratch register. a1 and a2 keep their values if a jump to |
| 3337 | // the miss label is generated. |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 3338 | GenerateStoreField(masm(), |
| 3339 | object, |
| 3340 | index, |
| 3341 | transition, |
| 3342 | name, |
| 3343 | a2, a1, a3, t0, |
| 3344 | &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3345 | __ bind(&miss); |
| 3346 | |
| 3347 | __ DecrementCounter(counters->keyed_store_field(), 1, a3, t0); |
| 3348 | Handle<Code> ic = masm()->isolate()->builtins()->KeyedStoreIC_Miss(); |
| 3349 | __ Jump(ic, RelocInfo::CODE_TARGET); |
| 3350 | |
| 3351 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 3352 | return GetCode(transition.is_null() |
| 3353 | ? Code::FIELD |
| 3354 | : Code::MAP_TRANSITION, name); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3355 | } |
| 3356 | |
| 3357 | |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3358 | Handle<Code> KeyedStoreStubCompiler::CompileStoreElement( |
| 3359 | Handle<Map> receiver_map) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3360 | // ----------- S t a t e ------------- |
| 3361 | // -- a0 : value |
| 3362 | // -- a1 : key |
| 3363 | // -- a2 : receiver |
| 3364 | // -- ra : return address |
| 3365 | // -- a3 : scratch |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3366 | // ----------------------------------- |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3367 | ElementsKind elements_kind = receiver_map->elements_kind(); |
sgjesse@chromium.org | 6db8871 | 2011-07-11 11:41:22 +0000 | [diff] [blame] | 3368 | bool is_js_array = receiver_map->instance_type() == JS_ARRAY_TYPE; |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3369 | Handle<Code> stub = |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3370 | KeyedStoreElementStub(is_js_array, elements_kind, grow_mode_).GetCode(); |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3371 | |
| 3372 | __ DispatchMap(a2, a3, receiver_map, stub, DO_SMI_CHECK); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3373 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3374 | Handle<Code> ic = isolate()->builtins()->KeyedStoreIC_Miss(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3375 | __ Jump(ic, RelocInfo::CODE_TARGET); |
| 3376 | |
| 3377 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 3378 | return GetCode(Code::NORMAL, factory()->empty_string()); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3379 | } |
| 3380 | |
| 3381 | |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3382 | Handle<Code> KeyedStoreStubCompiler::CompileStorePolymorphic( |
| 3383 | MapHandleList* receiver_maps, |
| 3384 | CodeHandleList* handler_stubs, |
| 3385 | MapHandleList* transitioned_maps) { |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3386 | // ----------- S t a t e ------------- |
| 3387 | // -- a0 : value |
| 3388 | // -- a1 : key |
| 3389 | // -- a2 : receiver |
| 3390 | // -- ra : return address |
| 3391 | // -- a3 : scratch |
| 3392 | // ----------------------------------- |
| 3393 | Label miss; |
| 3394 | __ JumpIfSmi(a2, &miss); |
| 3395 | |
| 3396 | int receiver_count = receiver_maps->length(); |
| 3397 | __ lw(a3, FieldMemOperand(a2, HeapObject::kMapOffset)); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3398 | for (int i = 0; i < receiver_count; ++i) { |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3399 | if (transitioned_maps->at(i).is_null()) { |
| 3400 | __ Jump(handler_stubs->at(i), RelocInfo::CODE_TARGET, eq, |
| 3401 | a3, Operand(receiver_maps->at(i))); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3402 | } else { |
| 3403 | Label next_map; |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3404 | __ Branch(&next_map, ne, a3, Operand(receiver_maps->at(i))); |
| 3405 | __ li(a3, Operand(transitioned_maps->at(i))); |
| 3406 | __ Jump(handler_stubs->at(i), RelocInfo::CODE_TARGET); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3407 | __ bind(&next_map); |
| 3408 | } |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3409 | } |
| 3410 | |
| 3411 | __ bind(&miss); |
| 3412 | Handle<Code> miss_ic = isolate()->builtins()->KeyedStoreIC_Miss(); |
| 3413 | __ Jump(miss_ic, RelocInfo::CODE_TARGET); |
| 3414 | |
| 3415 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 3416 | return GetCode(Code::NORMAL, factory()->empty_string(), MEGAMORPHIC); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3417 | } |
| 3418 | |
| 3419 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3420 | Handle<Code> ConstructStubCompiler::CompileConstructStub( |
| 3421 | Handle<JSFunction> function) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3422 | // a0 : argc |
| 3423 | // a1 : constructor |
| 3424 | // ra : return address |
| 3425 | // [sp] : last argument |
| 3426 | Label generic_stub_call; |
| 3427 | |
| 3428 | // Use t7 for holding undefined which is used in several places below. |
| 3429 | __ LoadRoot(t7, Heap::kUndefinedValueRootIndex); |
| 3430 | |
| 3431 | #ifdef ENABLE_DEBUGGER_SUPPORT |
| 3432 | // Check to see whether there are any break points in the function code. If |
| 3433 | // there are jump to the generic constructor stub which calls the actual |
| 3434 | // code for the function thereby hitting the break points. |
| 3435 | __ lw(t5, FieldMemOperand(a1, JSFunction::kSharedFunctionInfoOffset)); |
| 3436 | __ lw(a2, FieldMemOperand(t5, SharedFunctionInfo::kDebugInfoOffset)); |
| 3437 | __ Branch(&generic_stub_call, ne, a2, Operand(t7)); |
| 3438 | #endif |
| 3439 | |
| 3440 | // Load the initial map and verify that it is in fact a map. |
| 3441 | // a1: constructor function |
| 3442 | // t7: undefined |
| 3443 | __ lw(a2, FieldMemOperand(a1, JSFunction::kPrototypeOrInitialMapOffset)); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3444 | __ JumpIfSmi(a2, &generic_stub_call); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3445 | __ GetObjectType(a2, a3, t0); |
| 3446 | __ Branch(&generic_stub_call, ne, t0, Operand(MAP_TYPE)); |
| 3447 | |
| 3448 | #ifdef DEBUG |
| 3449 | // Cannot construct functions this way. |
| 3450 | // a0: argc |
| 3451 | // a1: constructor function |
| 3452 | // a2: initial map |
| 3453 | // t7: undefined |
| 3454 | __ lbu(a3, FieldMemOperand(a2, Map::kInstanceTypeOffset)); |
| 3455 | __ Check(ne, "Function constructed by construct stub.", |
| 3456 | a3, Operand(JS_FUNCTION_TYPE)); |
| 3457 | #endif |
| 3458 | |
| 3459 | // Now allocate the JSObject in new space. |
| 3460 | // a0: argc |
| 3461 | // a1: constructor function |
| 3462 | // a2: initial map |
| 3463 | // t7: undefined |
| 3464 | __ lbu(a3, FieldMemOperand(a2, Map::kInstanceSizeOffset)); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3465 | __ AllocateInNewSpace(a3, t4, t5, t6, &generic_stub_call, SIZE_IN_WORDS); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3466 | |
| 3467 | // Allocated the JSObject, now initialize the fields. Map is set to initial |
| 3468 | // map and properties and elements are set to empty fixed array. |
| 3469 | // a0: argc |
| 3470 | // a1: constructor function |
| 3471 | // a2: initial map |
| 3472 | // a3: object size (in words) |
| 3473 | // t4: JSObject (not tagged) |
| 3474 | // t7: undefined |
| 3475 | __ LoadRoot(t6, Heap::kEmptyFixedArrayRootIndex); |
| 3476 | __ mov(t5, t4); |
| 3477 | __ sw(a2, MemOperand(t5, JSObject::kMapOffset)); |
| 3478 | __ sw(t6, MemOperand(t5, JSObject::kPropertiesOffset)); |
| 3479 | __ sw(t6, MemOperand(t5, JSObject::kElementsOffset)); |
| 3480 | __ Addu(t5, t5, Operand(3 * kPointerSize)); |
| 3481 | ASSERT_EQ(0 * kPointerSize, JSObject::kMapOffset); |
| 3482 | ASSERT_EQ(1 * kPointerSize, JSObject::kPropertiesOffset); |
| 3483 | ASSERT_EQ(2 * kPointerSize, JSObject::kElementsOffset); |
| 3484 | |
| 3485 | |
| 3486 | // Calculate the location of the first argument. The stack contains only the |
| 3487 | // argc arguments. |
| 3488 | __ sll(a1, a0, kPointerSizeLog2); |
| 3489 | __ Addu(a1, a1, sp); |
| 3490 | |
| 3491 | // Fill all the in-object properties with undefined. |
| 3492 | // a0: argc |
| 3493 | // a1: first argument |
| 3494 | // a3: object size (in words) |
| 3495 | // t4: JSObject (not tagged) |
| 3496 | // t5: First in-object property of JSObject (not tagged) |
| 3497 | // t7: undefined |
| 3498 | // Fill the initialized properties with a constant value or a passed argument |
| 3499 | // depending on the this.x = ...; assignment in the function. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3500 | Handle<SharedFunctionInfo> shared(function->shared()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3501 | for (int i = 0; i < shared->this_property_assignments_count(); i++) { |
| 3502 | if (shared->IsThisPropertyAssignmentArgument(i)) { |
| 3503 | Label not_passed, next; |
| 3504 | // Check if the argument assigned to the property is actually passed. |
| 3505 | int arg_number = shared->GetThisPropertyAssignmentArgument(i); |
| 3506 | __ Branch(¬_passed, less_equal, a0, Operand(arg_number)); |
| 3507 | // Argument passed - find it on the stack. |
| 3508 | __ lw(a2, MemOperand(a1, (arg_number + 1) * -kPointerSize)); |
| 3509 | __ sw(a2, MemOperand(t5)); |
| 3510 | __ Addu(t5, t5, kPointerSize); |
| 3511 | __ jmp(&next); |
| 3512 | __ bind(¬_passed); |
| 3513 | // Set the property to undefined. |
| 3514 | __ sw(t7, MemOperand(t5)); |
| 3515 | __ Addu(t5, t5, Operand(kPointerSize)); |
| 3516 | __ bind(&next); |
| 3517 | } else { |
| 3518 | // Set the property to the constant value. |
| 3519 | Handle<Object> constant(shared->GetThisPropertyAssignmentConstant(i)); |
| 3520 | __ li(a2, Operand(constant)); |
| 3521 | __ sw(a2, MemOperand(t5)); |
| 3522 | __ Addu(t5, t5, kPointerSize); |
| 3523 | } |
| 3524 | } |
| 3525 | |
| 3526 | // Fill the unused in-object property fields with undefined. |
| 3527 | ASSERT(function->has_initial_map()); |
| 3528 | for (int i = shared->this_property_assignments_count(); |
| 3529 | i < function->initial_map()->inobject_properties(); |
| 3530 | i++) { |
| 3531 | __ sw(t7, MemOperand(t5)); |
| 3532 | __ Addu(t5, t5, kPointerSize); |
| 3533 | } |
| 3534 | |
| 3535 | // a0: argc |
| 3536 | // t4: JSObject (not tagged) |
| 3537 | // Move argc to a1 and the JSObject to return to v0 and tag it. |
| 3538 | __ mov(a1, a0); |
| 3539 | __ mov(v0, t4); |
| 3540 | __ Or(v0, v0, Operand(kHeapObjectTag)); |
| 3541 | |
| 3542 | // v0: JSObject |
| 3543 | // a1: argc |
| 3544 | // Remove caller arguments and receiver from the stack and return. |
| 3545 | __ sll(t0, a1, kPointerSizeLog2); |
| 3546 | __ Addu(sp, sp, t0); |
| 3547 | __ Addu(sp, sp, Operand(kPointerSize)); |
| 3548 | Counters* counters = masm()->isolate()->counters(); |
| 3549 | __ IncrementCounter(counters->constructed_objects(), 1, a1, a2); |
| 3550 | __ IncrementCounter(counters->constructed_objects_stub(), 1, a1, a2); |
| 3551 | __ Ret(); |
| 3552 | |
| 3553 | // Jump to the generic stub in case the specialized code cannot handle the |
| 3554 | // construction. |
| 3555 | __ bind(&generic_stub_call); |
| 3556 | Handle<Code> generic_construct_stub = |
| 3557 | masm()->isolate()->builtins()->JSConstructStubGeneric(); |
| 3558 | __ Jump(generic_construct_stub, RelocInfo::CODE_TARGET); |
| 3559 | |
| 3560 | // Return the generated code. |
| 3561 | return GetCode(); |
| 3562 | } |
| 3563 | |
| 3564 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3565 | #undef __ |
| 3566 | #define __ ACCESS_MASM(masm) |
| 3567 | |
| 3568 | |
sgjesse@chromium.org | 6db8871 | 2011-07-11 11:41:22 +0000 | [diff] [blame] | 3569 | void KeyedLoadStubCompiler::GenerateLoadDictionaryElement( |
| 3570 | MacroAssembler* masm) { |
| 3571 | // ---------- S t a t e -------------- |
| 3572 | // -- ra : return address |
| 3573 | // -- a0 : key |
| 3574 | // -- a1 : receiver |
| 3575 | // ----------------------------------- |
| 3576 | Label slow, miss_force_generic; |
| 3577 | |
| 3578 | Register key = a0; |
| 3579 | Register receiver = a1; |
| 3580 | |
| 3581 | __ JumpIfNotSmi(key, &miss_force_generic); |
| 3582 | __ lw(t0, FieldMemOperand(receiver, JSObject::kElementsOffset)); |
| 3583 | __ sra(a2, a0, kSmiTagSize); |
| 3584 | __ LoadFromNumberDictionary(&slow, t0, a0, v0, a2, a3, t1); |
| 3585 | __ Ret(); |
| 3586 | |
| 3587 | // Slow case, key and receiver still in a0 and a1. |
| 3588 | __ bind(&slow); |
| 3589 | __ IncrementCounter( |
| 3590 | masm->isolate()->counters()->keyed_load_external_array_slow(), |
| 3591 | 1, a2, a3); |
| 3592 | // Entry registers are intact. |
| 3593 | // ---------- S t a t e -------------- |
| 3594 | // -- ra : return address |
| 3595 | // -- a0 : key |
| 3596 | // -- a1 : receiver |
| 3597 | // ----------------------------------- |
| 3598 | Handle<Code> slow_ic = |
| 3599 | masm->isolate()->builtins()->KeyedLoadIC_Slow(); |
| 3600 | __ Jump(slow_ic, RelocInfo::CODE_TARGET); |
| 3601 | |
| 3602 | // Miss case, call the runtime. |
| 3603 | __ bind(&miss_force_generic); |
| 3604 | |
| 3605 | // ---------- S t a t e -------------- |
| 3606 | // -- ra : return address |
| 3607 | // -- a0 : key |
| 3608 | // -- a1 : receiver |
| 3609 | // ----------------------------------- |
| 3610 | |
| 3611 | Handle<Code> miss_ic = |
| 3612 | masm->isolate()->builtins()->KeyedLoadIC_MissForceGeneric(); |
| 3613 | __ Jump(miss_ic, RelocInfo::CODE_TARGET); |
| 3614 | } |
| 3615 | |
| 3616 | |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3617 | static bool IsElementTypeSigned(ElementsKind elements_kind) { |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 3618 | switch (elements_kind) { |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3619 | case EXTERNAL_BYTE_ELEMENTS: |
| 3620 | case EXTERNAL_SHORT_ELEMENTS: |
| 3621 | case EXTERNAL_INT_ELEMENTS: |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3622 | return true; |
| 3623 | |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3624 | case EXTERNAL_UNSIGNED_BYTE_ELEMENTS: |
| 3625 | case EXTERNAL_UNSIGNED_SHORT_ELEMENTS: |
| 3626 | case EXTERNAL_UNSIGNED_INT_ELEMENTS: |
| 3627 | case EXTERNAL_PIXEL_ELEMENTS: |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3628 | return false; |
| 3629 | |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3630 | case EXTERNAL_FLOAT_ELEMENTS: |
| 3631 | case EXTERNAL_DOUBLE_ELEMENTS: |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 3632 | case FAST_SMI_ELEMENTS: |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3633 | case FAST_ELEMENTS: |
| 3634 | case FAST_DOUBLE_ELEMENTS: |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 3635 | case FAST_HOLEY_SMI_ELEMENTS: |
| 3636 | case FAST_HOLEY_ELEMENTS: |
| 3637 | case FAST_HOLEY_DOUBLE_ELEMENTS: |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3638 | case DICTIONARY_ELEMENTS: |
| 3639 | case NON_STRICT_ARGUMENTS_ELEMENTS: |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3640 | UNREACHABLE(); |
| 3641 | return false; |
| 3642 | } |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 3643 | return false; |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3644 | } |
| 3645 | |
| 3646 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 3647 | static void GenerateSmiKeyCheck(MacroAssembler* masm, |
| 3648 | Register key, |
| 3649 | Register scratch0, |
| 3650 | Register scratch1, |
| 3651 | FPURegister double_scratch0, |
| 3652 | Label* fail) { |
| 3653 | if (CpuFeatures::IsSupported(FPU)) { |
| 3654 | CpuFeatures::Scope scope(FPU); |
| 3655 | Label key_ok; |
| 3656 | // Check for smi or a smi inside a heap number. We convert the heap |
| 3657 | // number and check if the conversion is exact and fits into the smi |
| 3658 | // range. |
| 3659 | __ JumpIfSmi(key, &key_ok); |
| 3660 | __ CheckMap(key, |
| 3661 | scratch0, |
| 3662 | Heap::kHeapNumberMapRootIndex, |
| 3663 | fail, |
| 3664 | DONT_DO_SMI_CHECK); |
| 3665 | __ ldc1(double_scratch0, FieldMemOperand(key, HeapNumber::kValueOffset)); |
| 3666 | __ EmitFPUTruncate(kRoundToZero, |
| 3667 | double_scratch0, |
| 3668 | double_scratch0, |
| 3669 | scratch0, |
| 3670 | scratch1, |
| 3671 | kCheckForInexactConversion); |
| 3672 | |
| 3673 | __ Branch(fail, ne, scratch1, Operand(zero_reg)); |
| 3674 | |
| 3675 | __ mfc1(scratch0, double_scratch0); |
| 3676 | __ SmiTagCheckOverflow(key, scratch0, scratch1); |
| 3677 | __ BranchOnOverflow(fail, scratch1); |
| 3678 | __ bind(&key_ok); |
| 3679 | } else { |
| 3680 | // Check that the key is a smi. |
| 3681 | __ JumpIfNotSmi(key, fail); |
| 3682 | } |
| 3683 | } |
| 3684 | |
| 3685 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3686 | void KeyedLoadStubCompiler::GenerateLoadExternalArray( |
| 3687 | MacroAssembler* masm, |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3688 | ElementsKind elements_kind) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3689 | // ---------- S t a t e -------------- |
| 3690 | // -- ra : return address |
| 3691 | // -- a0 : key |
| 3692 | // -- a1 : receiver |
| 3693 | // ----------------------------------- |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3694 | Label miss_force_generic, slow, failed_allocation; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3695 | |
| 3696 | Register key = a0; |
| 3697 | Register receiver = a1; |
| 3698 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3699 | // This stub is meant to be tail-jumped to, the receiver must already |
| 3700 | // have been verified by the caller to not be a smi. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3701 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 3702 | // Check that the key is a smi or a heap number convertible to a smi. |
| 3703 | GenerateSmiKeyCheck(masm, key, t0, t1, f2, &miss_force_generic); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3704 | |
| 3705 | __ lw(a3, FieldMemOperand(receiver, JSObject::kElementsOffset)); |
| 3706 | // a3: elements array |
| 3707 | |
| 3708 | // Check that the index is in range. |
| 3709 | __ lw(t1, FieldMemOperand(a3, ExternalArray::kLengthOffset)); |
| 3710 | __ sra(t2, key, kSmiTagSize); |
| 3711 | // Unsigned comparison catches both negative and too-large values. |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 3712 | __ Branch(&miss_force_generic, Ugreater_equal, key, Operand(t1)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3713 | |
| 3714 | __ lw(a3, FieldMemOperand(a3, ExternalArray::kExternalPointerOffset)); |
| 3715 | // a3: base pointer of external storage |
| 3716 | |
| 3717 | // We are not untagging smi key and instead work with it |
| 3718 | // as if it was premultiplied by 2. |
fschneider@chromium.org | 1805e21 | 2011-09-05 10:49:12 +0000 | [diff] [blame] | 3719 | STATIC_ASSERT((kSmiTag == 0) && (kSmiTagSize == 1)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3720 | |
| 3721 | Register value = a2; |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 3722 | switch (elements_kind) { |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3723 | case EXTERNAL_BYTE_ELEMENTS: |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3724 | __ srl(t2, key, 1); |
| 3725 | __ addu(t3, a3, t2); |
| 3726 | __ lb(value, MemOperand(t3, 0)); |
| 3727 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3728 | case EXTERNAL_PIXEL_ELEMENTS: |
| 3729 | case EXTERNAL_UNSIGNED_BYTE_ELEMENTS: |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3730 | __ srl(t2, key, 1); |
| 3731 | __ addu(t3, a3, t2); |
| 3732 | __ lbu(value, MemOperand(t3, 0)); |
| 3733 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3734 | case EXTERNAL_SHORT_ELEMENTS: |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3735 | __ addu(t3, a3, key); |
| 3736 | __ lh(value, MemOperand(t3, 0)); |
| 3737 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3738 | case EXTERNAL_UNSIGNED_SHORT_ELEMENTS: |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3739 | __ addu(t3, a3, key); |
| 3740 | __ lhu(value, MemOperand(t3, 0)); |
| 3741 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3742 | case EXTERNAL_INT_ELEMENTS: |
| 3743 | case EXTERNAL_UNSIGNED_INT_ELEMENTS: |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3744 | __ sll(t2, key, 1); |
| 3745 | __ addu(t3, a3, t2); |
| 3746 | __ lw(value, MemOperand(t3, 0)); |
| 3747 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3748 | case EXTERNAL_FLOAT_ELEMENTS: |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3749 | __ sll(t3, t2, 2); |
| 3750 | __ addu(t3, a3, t3); |
| 3751 | if (CpuFeatures::IsSupported(FPU)) { |
| 3752 | CpuFeatures::Scope scope(FPU); |
| 3753 | __ lwc1(f0, MemOperand(t3, 0)); |
| 3754 | } else { |
| 3755 | __ lw(value, MemOperand(t3, 0)); |
| 3756 | } |
| 3757 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3758 | case EXTERNAL_DOUBLE_ELEMENTS: |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3759 | __ sll(t2, key, 2); |
| 3760 | __ addu(t3, a3, t2); |
| 3761 | if (CpuFeatures::IsSupported(FPU)) { |
| 3762 | CpuFeatures::Scope scope(FPU); |
| 3763 | __ ldc1(f0, MemOperand(t3, 0)); |
| 3764 | } else { |
| 3765 | // t3: pointer to the beginning of the double we want to load. |
| 3766 | __ lw(a2, MemOperand(t3, 0)); |
| 3767 | __ lw(a3, MemOperand(t3, Register::kSizeInBytes)); |
| 3768 | } |
| 3769 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3770 | case FAST_ELEMENTS: |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 3771 | case FAST_SMI_ELEMENTS: |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3772 | case FAST_DOUBLE_ELEMENTS: |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 3773 | case FAST_HOLEY_ELEMENTS: |
| 3774 | case FAST_HOLEY_SMI_ELEMENTS: |
| 3775 | case FAST_HOLEY_DOUBLE_ELEMENTS: |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3776 | case DICTIONARY_ELEMENTS: |
| 3777 | case NON_STRICT_ARGUMENTS_ELEMENTS: |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3778 | UNREACHABLE(); |
| 3779 | break; |
| 3780 | } |
| 3781 | |
| 3782 | // For integer array types: |
| 3783 | // a2: value |
| 3784 | // For float array type: |
| 3785 | // f0: value (if FPU is supported) |
| 3786 | // a2: value (if FPU is not supported) |
| 3787 | // For double array type: |
| 3788 | // f0: value (if FPU is supported) |
| 3789 | // a2/a3: value (if FPU is not supported) |
| 3790 | |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3791 | if (elements_kind == EXTERNAL_INT_ELEMENTS) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3792 | // For the Int and UnsignedInt array types, we need to see whether |
| 3793 | // the value can be represented in a Smi. If not, we need to convert |
| 3794 | // it to a HeapNumber. |
| 3795 | Label box_int; |
| 3796 | __ Subu(t3, value, Operand(0xC0000000)); // Non-smi value gives neg result. |
| 3797 | __ Branch(&box_int, lt, t3, Operand(zero_reg)); |
| 3798 | // Tag integer as smi and return it. |
| 3799 | __ sll(v0, value, kSmiTagSize); |
| 3800 | __ Ret(); |
| 3801 | |
| 3802 | __ bind(&box_int); |
| 3803 | // Allocate a HeapNumber for the result and perform int-to-double |
| 3804 | // conversion. |
| 3805 | // The arm version uses a temporary here to save r0, but we don't need to |
| 3806 | // (a0 is not modified). |
| 3807 | __ LoadRoot(t1, Heap::kHeapNumberMapRootIndex); |
| 3808 | __ AllocateHeapNumber(v0, a3, t0, t1, &slow); |
| 3809 | |
| 3810 | if (CpuFeatures::IsSupported(FPU)) { |
| 3811 | CpuFeatures::Scope scope(FPU); |
| 3812 | __ mtc1(value, f0); |
| 3813 | __ cvt_d_w(f0, f0); |
fschneider@chromium.org | 7d10be5 | 2012-04-10 12:30:14 +0000 | [diff] [blame] | 3814 | __ sdc1(f0, FieldMemOperand(v0, HeapNumber::kValueOffset)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3815 | __ Ret(); |
| 3816 | } else { |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3817 | Register dst1 = t2; |
| 3818 | Register dst2 = t3; |
| 3819 | FloatingPointHelper::Destination dest = |
| 3820 | FloatingPointHelper::kCoreRegisters; |
| 3821 | FloatingPointHelper::ConvertIntToDouble(masm, |
| 3822 | value, |
| 3823 | dest, |
| 3824 | f0, |
| 3825 | dst1, |
| 3826 | dst2, |
| 3827 | t1, |
| 3828 | f2); |
| 3829 | __ sw(dst1, FieldMemOperand(v0, HeapNumber::kMantissaOffset)); |
| 3830 | __ sw(dst2, FieldMemOperand(v0, HeapNumber::kExponentOffset)); |
| 3831 | __ Ret(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3832 | } |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3833 | } else if (elements_kind == EXTERNAL_UNSIGNED_INT_ELEMENTS) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3834 | // The test is different for unsigned int values. Since we need |
| 3835 | // the value to be in the range of a positive smi, we can't |
| 3836 | // handle either of the top two bits being set in the value. |
| 3837 | if (CpuFeatures::IsSupported(FPU)) { |
| 3838 | CpuFeatures::Scope scope(FPU); |
| 3839 | Label pl_box_int; |
| 3840 | __ And(t2, value, Operand(0xC0000000)); |
| 3841 | __ Branch(&pl_box_int, ne, t2, Operand(zero_reg)); |
| 3842 | |
| 3843 | // It can fit in an Smi. |
| 3844 | // Tag integer as smi and return it. |
| 3845 | __ sll(v0, value, kSmiTagSize); |
| 3846 | __ Ret(); |
| 3847 | |
| 3848 | __ bind(&pl_box_int); |
| 3849 | // Allocate a HeapNumber for the result and perform int-to-double |
| 3850 | // conversion. Don't use a0 and a1 as AllocateHeapNumber clobbers all |
| 3851 | // registers - also when jumping due to exhausted young space. |
| 3852 | __ LoadRoot(t6, Heap::kHeapNumberMapRootIndex); |
| 3853 | __ AllocateHeapNumber(v0, t2, t3, t6, &slow); |
| 3854 | |
| 3855 | // This is replaced by a macro: |
| 3856 | // __ mtc1(value, f0); // LS 32-bits. |
| 3857 | // __ mtc1(zero_reg, f1); // MS 32-bits are all zero. |
| 3858 | // __ cvt_d_l(f0, f0); // Use 64 bit conv to get correct unsigned 32-bit. |
| 3859 | |
ricow@chromium.org | 4668a2c | 2011-08-29 10:41:00 +0000 | [diff] [blame] | 3860 | __ Cvt_d_uw(f0, value, f22); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3861 | |
fschneider@chromium.org | 7d10be5 | 2012-04-10 12:30:14 +0000 | [diff] [blame] | 3862 | __ sdc1(f0, FieldMemOperand(v0, HeapNumber::kValueOffset)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3863 | |
| 3864 | __ Ret(); |
| 3865 | } else { |
| 3866 | // Check whether unsigned integer fits into smi. |
| 3867 | Label box_int_0, box_int_1, done; |
| 3868 | __ And(t2, value, Operand(0x80000000)); |
| 3869 | __ Branch(&box_int_0, ne, t2, Operand(zero_reg)); |
| 3870 | __ And(t2, value, Operand(0x40000000)); |
| 3871 | __ Branch(&box_int_1, ne, t2, Operand(zero_reg)); |
| 3872 | |
| 3873 | // Tag integer as smi and return it. |
| 3874 | __ sll(v0, value, kSmiTagSize); |
| 3875 | __ Ret(); |
| 3876 | |
| 3877 | Register hiword = value; // a2. |
| 3878 | Register loword = a3; |
| 3879 | |
| 3880 | __ bind(&box_int_0); |
| 3881 | // Integer does not have leading zeros. |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3882 | GenerateUInt2Double(masm, hiword, loword, t0, 0); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3883 | __ Branch(&done); |
| 3884 | |
| 3885 | __ bind(&box_int_1); |
| 3886 | // Integer has one leading zero. |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3887 | GenerateUInt2Double(masm, hiword, loword, t0, 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3888 | |
| 3889 | |
| 3890 | __ bind(&done); |
| 3891 | // Integer was converted to double in registers hiword:loword. |
| 3892 | // Wrap it into a HeapNumber. Don't use a0 and a1 as AllocateHeapNumber |
| 3893 | // clobbers all registers - also when jumping due to exhausted young |
| 3894 | // space. |
| 3895 | __ LoadRoot(t6, Heap::kHeapNumberMapRootIndex); |
| 3896 | __ AllocateHeapNumber(t2, t3, t5, t6, &slow); |
| 3897 | |
| 3898 | __ sw(hiword, FieldMemOperand(t2, HeapNumber::kExponentOffset)); |
| 3899 | __ sw(loword, FieldMemOperand(t2, HeapNumber::kMantissaOffset)); |
| 3900 | |
| 3901 | __ mov(v0, t2); |
| 3902 | __ Ret(); |
| 3903 | } |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3904 | } else if (elements_kind == EXTERNAL_FLOAT_ELEMENTS) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3905 | // For the floating-point array type, we need to always allocate a |
| 3906 | // HeapNumber. |
| 3907 | if (CpuFeatures::IsSupported(FPU)) { |
| 3908 | CpuFeatures::Scope scope(FPU); |
| 3909 | // Allocate a HeapNumber for the result. Don't use a0 and a1 as |
| 3910 | // AllocateHeapNumber clobbers all registers - also when jumping due to |
| 3911 | // exhausted young space. |
| 3912 | __ LoadRoot(t6, Heap::kHeapNumberMapRootIndex); |
| 3913 | __ AllocateHeapNumber(v0, t3, t5, t6, &slow); |
| 3914 | // The float (single) value is already in fpu reg f0 (if we use float). |
| 3915 | __ cvt_d_s(f0, f0); |
fschneider@chromium.org | 7d10be5 | 2012-04-10 12:30:14 +0000 | [diff] [blame] | 3916 | __ sdc1(f0, FieldMemOperand(v0, HeapNumber::kValueOffset)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3917 | __ Ret(); |
| 3918 | } else { |
| 3919 | // Allocate a HeapNumber for the result. Don't use a0 and a1 as |
| 3920 | // AllocateHeapNumber clobbers all registers - also when jumping due to |
| 3921 | // exhausted young space. |
| 3922 | __ LoadRoot(t6, Heap::kHeapNumberMapRootIndex); |
| 3923 | __ AllocateHeapNumber(v0, t3, t5, t6, &slow); |
| 3924 | // FPU is not available, do manual single to double conversion. |
| 3925 | |
| 3926 | // a2: floating point value (binary32). |
| 3927 | // v0: heap number for result |
| 3928 | |
| 3929 | // Extract mantissa to t4. |
| 3930 | __ And(t4, value, Operand(kBinary32MantissaMask)); |
| 3931 | |
| 3932 | // Extract exponent to t5. |
| 3933 | __ srl(t5, value, kBinary32MantissaBits); |
| 3934 | __ And(t5, t5, Operand(kBinary32ExponentMask >> kBinary32MantissaBits)); |
| 3935 | |
| 3936 | Label exponent_rebiased; |
| 3937 | __ Branch(&exponent_rebiased, eq, t5, Operand(zero_reg)); |
| 3938 | |
| 3939 | __ li(t0, 0x7ff); |
| 3940 | __ Xor(t1, t5, Operand(0xFF)); |
mstarzinger@chromium.org | 3233d2f | 2012-03-14 11:16:03 +0000 | [diff] [blame] | 3941 | __ Movz(t5, t0, t1); // Set t5 to 0x7ff only if t5 is equal to 0xff. |
rossberg@chromium.org | 400388e | 2012-06-06 09:29:22 +0000 | [diff] [blame] | 3942 | __ Branch(&exponent_rebiased, eq, t1, Operand(zero_reg)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3943 | |
| 3944 | // Rebias exponent. |
| 3945 | __ Addu(t5, |
| 3946 | t5, |
| 3947 | Operand(-kBinary32ExponentBias + HeapNumber::kExponentBias)); |
| 3948 | |
| 3949 | __ bind(&exponent_rebiased); |
| 3950 | __ And(a2, value, Operand(kBinary32SignMask)); |
| 3951 | value = no_reg; |
| 3952 | __ sll(t0, t5, HeapNumber::kMantissaBitsInTopWord); |
| 3953 | __ or_(a2, a2, t0); |
| 3954 | |
| 3955 | // Shift mantissa. |
| 3956 | static const int kMantissaShiftForHiWord = |
| 3957 | kBinary32MantissaBits - HeapNumber::kMantissaBitsInTopWord; |
| 3958 | |
| 3959 | static const int kMantissaShiftForLoWord = |
| 3960 | kBitsPerInt - kMantissaShiftForHiWord; |
| 3961 | |
| 3962 | __ srl(t0, t4, kMantissaShiftForHiWord); |
| 3963 | __ or_(a2, a2, t0); |
| 3964 | __ sll(a0, t4, kMantissaShiftForLoWord); |
| 3965 | |
| 3966 | __ sw(a2, FieldMemOperand(v0, HeapNumber::kExponentOffset)); |
| 3967 | __ sw(a0, FieldMemOperand(v0, HeapNumber::kMantissaOffset)); |
| 3968 | __ Ret(); |
| 3969 | } |
| 3970 | |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3971 | } else if (elements_kind == EXTERNAL_DOUBLE_ELEMENTS) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3972 | if (CpuFeatures::IsSupported(FPU)) { |
| 3973 | CpuFeatures::Scope scope(FPU); |
| 3974 | // Allocate a HeapNumber for the result. Don't use a0 and a1 as |
| 3975 | // AllocateHeapNumber clobbers all registers - also when jumping due to |
| 3976 | // exhausted young space. |
| 3977 | __ LoadRoot(t6, Heap::kHeapNumberMapRootIndex); |
| 3978 | __ AllocateHeapNumber(v0, t3, t5, t6, &slow); |
| 3979 | // The double value is already in f0 |
| 3980 | __ sdc1(f0, FieldMemOperand(v0, HeapNumber::kValueOffset)); |
| 3981 | __ Ret(); |
| 3982 | } else { |
| 3983 | // Allocate a HeapNumber for the result. Don't use a0 and a1 as |
| 3984 | // AllocateHeapNumber clobbers all registers - also when jumping due to |
| 3985 | // exhausted young space. |
| 3986 | __ LoadRoot(t6, Heap::kHeapNumberMapRootIndex); |
| 3987 | __ AllocateHeapNumber(v0, t3, t5, t6, &slow); |
| 3988 | |
| 3989 | __ sw(a2, FieldMemOperand(v0, HeapNumber::kMantissaOffset)); |
| 3990 | __ sw(a3, FieldMemOperand(v0, HeapNumber::kExponentOffset)); |
| 3991 | __ Ret(); |
| 3992 | } |
| 3993 | |
| 3994 | } else { |
| 3995 | // Tag integer as smi and return it. |
| 3996 | __ sll(v0, value, kSmiTagSize); |
| 3997 | __ Ret(); |
| 3998 | } |
| 3999 | |
| 4000 | // Slow case, key and receiver still in a0 and a1. |
| 4001 | __ bind(&slow); |
| 4002 | __ IncrementCounter( |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4003 | masm->isolate()->counters()->keyed_load_external_array_slow(), |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4004 | 1, a2, a3); |
| 4005 | |
| 4006 | // ---------- S t a t e -------------- |
| 4007 | // -- ra : return address |
| 4008 | // -- a0 : key |
| 4009 | // -- a1 : receiver |
| 4010 | // ----------------------------------- |
| 4011 | |
| 4012 | __ Push(a1, a0); |
| 4013 | |
| 4014 | __ TailCallRuntime(Runtime::kKeyedGetProperty, 2, 1); |
| 4015 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4016 | __ bind(&miss_force_generic); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 4017 | Handle<Code> stub = |
| 4018 | masm->isolate()->builtins()->KeyedLoadIC_MissForceGeneric(); |
| 4019 | __ Jump(stub, RelocInfo::CODE_TARGET); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 4020 | } |
| 4021 | |
| 4022 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4023 | void KeyedStoreStubCompiler::GenerateStoreExternalArray( |
| 4024 | MacroAssembler* masm, |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4025 | ElementsKind elements_kind) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4026 | // ---------- S t a t e -------------- |
| 4027 | // -- a0 : value |
| 4028 | // -- a1 : key |
| 4029 | // -- a2 : receiver |
| 4030 | // -- ra : return address |
| 4031 | // ----------------------------------- |
| 4032 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4033 | Label slow, check_heap_number, miss_force_generic; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4034 | |
| 4035 | // Register usage. |
| 4036 | Register value = a0; |
| 4037 | Register key = a1; |
| 4038 | Register receiver = a2; |
| 4039 | // a3 mostly holds the elements array or the destination external array. |
| 4040 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4041 | // This stub is meant to be tail-jumped to, the receiver must already |
| 4042 | // have been verified by the caller to not be a smi. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4043 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 4044 | // Check that the key is a smi or a heap number convertible to a smi. |
| 4045 | GenerateSmiKeyCheck(masm, key, t0, t1, f2, &miss_force_generic); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4046 | |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 4047 | __ lw(a3, FieldMemOperand(receiver, JSObject::kElementsOffset)); |
| 4048 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4049 | // Check that the index is in range. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4050 | __ lw(t1, FieldMemOperand(a3, ExternalArray::kLengthOffset)); |
| 4051 | // Unsigned comparison catches both negative and too-large values. |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 4052 | __ Branch(&miss_force_generic, Ugreater_equal, key, Operand(t1)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4053 | |
| 4054 | // Handle both smis and HeapNumbers in the fast path. Go to the |
| 4055 | // runtime for all other kinds of values. |
| 4056 | // a3: external array. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4057 | |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4058 | if (elements_kind == EXTERNAL_PIXEL_ELEMENTS) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4059 | // Double to pixel conversion is only implemented in the runtime for now. |
| 4060 | __ JumpIfNotSmi(value, &slow); |
| 4061 | } else { |
| 4062 | __ JumpIfNotSmi(value, &check_heap_number); |
| 4063 | } |
| 4064 | __ SmiUntag(t1, value); |
| 4065 | __ lw(a3, FieldMemOperand(a3, ExternalArray::kExternalPointerOffset)); |
| 4066 | |
| 4067 | // a3: base pointer of external storage. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4068 | // t1: value (integer). |
| 4069 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 4070 | switch (elements_kind) { |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4071 | case EXTERNAL_PIXEL_ELEMENTS: { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4072 | // Clamp the value to [0..255]. |
| 4073 | // v0 is used as a scratch register here. |
| 4074 | Label done; |
| 4075 | __ li(v0, Operand(255)); |
| 4076 | // Normal branch: nop in delay slot. |
| 4077 | __ Branch(&done, gt, t1, Operand(v0)); |
| 4078 | // Use delay slot in this branch. |
| 4079 | __ Branch(USE_DELAY_SLOT, &done, lt, t1, Operand(zero_reg)); |
| 4080 | __ mov(v0, zero_reg); // In delay slot. |
| 4081 | __ mov(v0, t1); // Value is in range 0..255. |
| 4082 | __ bind(&done); |
| 4083 | __ mov(t1, v0); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4084 | |
| 4085 | __ srl(t8, key, 1); |
| 4086 | __ addu(t8, a3, t8); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4087 | __ sb(t1, MemOperand(t8, 0)); |
| 4088 | } |
| 4089 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4090 | case EXTERNAL_BYTE_ELEMENTS: |
| 4091 | case EXTERNAL_UNSIGNED_BYTE_ELEMENTS: |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4092 | __ srl(t8, key, 1); |
| 4093 | __ addu(t8, a3, t8); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4094 | __ sb(t1, MemOperand(t8, 0)); |
| 4095 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4096 | case EXTERNAL_SHORT_ELEMENTS: |
| 4097 | case EXTERNAL_UNSIGNED_SHORT_ELEMENTS: |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4098 | __ addu(t8, a3, key); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4099 | __ sh(t1, MemOperand(t8, 0)); |
| 4100 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4101 | case EXTERNAL_INT_ELEMENTS: |
| 4102 | case EXTERNAL_UNSIGNED_INT_ELEMENTS: |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4103 | __ sll(t8, key, 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4104 | __ addu(t8, a3, t8); |
| 4105 | __ sw(t1, MemOperand(t8, 0)); |
| 4106 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4107 | case EXTERNAL_FLOAT_ELEMENTS: |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4108 | // Perform int-to-float conversion and store to memory. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4109 | __ SmiUntag(t0, key); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4110 | StoreIntAsFloat(masm, a3, t0, t1, t2, t3, t4); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4111 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4112 | case EXTERNAL_DOUBLE_ELEMENTS: |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4113 | __ sll(t8, key, 2); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4114 | __ addu(a3, a3, t8); |
| 4115 | // a3: effective address of the double element |
| 4116 | FloatingPointHelper::Destination destination; |
| 4117 | if (CpuFeatures::IsSupported(FPU)) { |
| 4118 | destination = FloatingPointHelper::kFPURegisters; |
| 4119 | } else { |
| 4120 | destination = FloatingPointHelper::kCoreRegisters; |
| 4121 | } |
| 4122 | FloatingPointHelper::ConvertIntToDouble( |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4123 | masm, t1, destination, |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4124 | f0, t2, t3, // These are: double_dst, dst1, dst2. |
| 4125 | t0, f2); // These are: scratch2, single_scratch. |
| 4126 | if (destination == FloatingPointHelper::kFPURegisters) { |
| 4127 | CpuFeatures::Scope scope(FPU); |
| 4128 | __ sdc1(f0, MemOperand(a3, 0)); |
| 4129 | } else { |
| 4130 | __ sw(t2, MemOperand(a3, 0)); |
| 4131 | __ sw(t3, MemOperand(a3, Register::kSizeInBytes)); |
| 4132 | } |
| 4133 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4134 | case FAST_ELEMENTS: |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 4135 | case FAST_SMI_ELEMENTS: |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4136 | case FAST_DOUBLE_ELEMENTS: |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 4137 | case FAST_HOLEY_ELEMENTS: |
| 4138 | case FAST_HOLEY_SMI_ELEMENTS: |
| 4139 | case FAST_HOLEY_DOUBLE_ELEMENTS: |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4140 | case DICTIONARY_ELEMENTS: |
| 4141 | case NON_STRICT_ARGUMENTS_ELEMENTS: |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4142 | UNREACHABLE(); |
| 4143 | break; |
| 4144 | } |
| 4145 | |
| 4146 | // 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] | 4147 | __ mov(v0, a0); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4148 | __ Ret(); |
| 4149 | |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4150 | if (elements_kind != EXTERNAL_PIXEL_ELEMENTS) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4151 | // a3: external array. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4152 | __ bind(&check_heap_number); |
| 4153 | __ GetObjectType(value, t1, t2); |
| 4154 | __ Branch(&slow, ne, t2, Operand(HEAP_NUMBER_TYPE)); |
| 4155 | |
| 4156 | __ lw(a3, FieldMemOperand(a3, ExternalArray::kExternalPointerOffset)); |
| 4157 | |
| 4158 | // a3: base pointer of external storage. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4159 | |
| 4160 | // The WebGL specification leaves the behavior of storing NaN and |
| 4161 | // +/-Infinity into integer arrays basically undefined. For more |
| 4162 | // reproducible behavior, convert these to zero. |
| 4163 | |
| 4164 | if (CpuFeatures::IsSupported(FPU)) { |
| 4165 | CpuFeatures::Scope scope(FPU); |
| 4166 | |
| 4167 | __ ldc1(f0, FieldMemOperand(a0, HeapNumber::kValueOffset)); |
| 4168 | |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4169 | if (elements_kind == EXTERNAL_FLOAT_ELEMENTS) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4170 | __ cvt_s_d(f0, f0); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4171 | __ sll(t8, key, 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4172 | __ addu(t8, a3, t8); |
| 4173 | __ swc1(f0, MemOperand(t8, 0)); |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4174 | } else if (elements_kind == EXTERNAL_DOUBLE_ELEMENTS) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4175 | __ sll(t8, key, 2); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4176 | __ addu(t8, a3, t8); |
| 4177 | __ sdc1(f0, MemOperand(t8, 0)); |
| 4178 | } else { |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 4179 | __ EmitECMATruncate(t3, f0, f2, t2, t1, t5); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4180 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 4181 | switch (elements_kind) { |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4182 | case EXTERNAL_BYTE_ELEMENTS: |
| 4183 | case EXTERNAL_UNSIGNED_BYTE_ELEMENTS: |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4184 | __ srl(t8, key, 1); |
| 4185 | __ addu(t8, a3, t8); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4186 | __ sb(t3, MemOperand(t8, 0)); |
| 4187 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4188 | case EXTERNAL_SHORT_ELEMENTS: |
| 4189 | case EXTERNAL_UNSIGNED_SHORT_ELEMENTS: |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4190 | __ addu(t8, a3, key); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4191 | __ sh(t3, MemOperand(t8, 0)); |
| 4192 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4193 | case EXTERNAL_INT_ELEMENTS: |
| 4194 | case EXTERNAL_UNSIGNED_INT_ELEMENTS: |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4195 | __ sll(t8, key, 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4196 | __ addu(t8, a3, t8); |
| 4197 | __ sw(t3, MemOperand(t8, 0)); |
| 4198 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4199 | case EXTERNAL_PIXEL_ELEMENTS: |
| 4200 | case EXTERNAL_FLOAT_ELEMENTS: |
| 4201 | case EXTERNAL_DOUBLE_ELEMENTS: |
| 4202 | case FAST_ELEMENTS: |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 4203 | case FAST_SMI_ELEMENTS: |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4204 | case FAST_DOUBLE_ELEMENTS: |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 4205 | case FAST_HOLEY_ELEMENTS: |
| 4206 | case FAST_HOLEY_SMI_ELEMENTS: |
| 4207 | case FAST_HOLEY_DOUBLE_ELEMENTS: |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4208 | case DICTIONARY_ELEMENTS: |
| 4209 | case NON_STRICT_ARGUMENTS_ELEMENTS: |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4210 | UNREACHABLE(); |
| 4211 | break; |
| 4212 | } |
| 4213 | } |
| 4214 | |
| 4215 | // Entry registers are intact, a0 holds the value |
| 4216 | // which is the return value. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4217 | __ mov(v0, a0); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4218 | __ Ret(); |
| 4219 | } else { |
| 4220 | // FPU is not available, do manual conversions. |
| 4221 | |
| 4222 | __ lw(t3, FieldMemOperand(value, HeapNumber::kExponentOffset)); |
| 4223 | __ lw(t4, FieldMemOperand(value, HeapNumber::kMantissaOffset)); |
| 4224 | |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4225 | if (elements_kind == EXTERNAL_FLOAT_ELEMENTS) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4226 | Label done, nan_or_infinity_or_zero; |
| 4227 | static const int kMantissaInHiWordShift = |
| 4228 | kBinary32MantissaBits - HeapNumber::kMantissaBitsInTopWord; |
| 4229 | |
| 4230 | static const int kMantissaInLoWordShift = |
| 4231 | kBitsPerInt - kMantissaInHiWordShift; |
| 4232 | |
| 4233 | // Test for all special exponent values: zeros, subnormal numbers, NaNs |
| 4234 | // and infinities. All these should be converted to 0. |
| 4235 | __ li(t5, HeapNumber::kExponentMask); |
| 4236 | __ and_(t6, t3, t5); |
| 4237 | __ Branch(&nan_or_infinity_or_zero, eq, t6, Operand(zero_reg)); |
| 4238 | |
| 4239 | __ xor_(t1, t6, t5); |
| 4240 | __ li(t2, kBinary32ExponentMask); |
mstarzinger@chromium.org | 3233d2f | 2012-03-14 11:16:03 +0000 | [diff] [blame] | 4241 | __ Movz(t6, t2, t1); // Only if t6 is equal to t5. |
rossberg@chromium.org | 400388e | 2012-06-06 09:29:22 +0000 | [diff] [blame] | 4242 | __ Branch(&nan_or_infinity_or_zero, eq, t1, Operand(zero_reg)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4243 | |
| 4244 | // Rebias exponent. |
| 4245 | __ srl(t6, t6, HeapNumber::kExponentShift); |
| 4246 | __ Addu(t6, |
| 4247 | t6, |
| 4248 | Operand(kBinary32ExponentBias - HeapNumber::kExponentBias)); |
| 4249 | |
| 4250 | __ li(t1, Operand(kBinary32MaxExponent)); |
| 4251 | __ Slt(t1, t1, t6); |
| 4252 | __ And(t2, t3, Operand(HeapNumber::kSignMask)); |
| 4253 | __ Or(t2, t2, Operand(kBinary32ExponentMask)); |
mstarzinger@chromium.org | 3233d2f | 2012-03-14 11:16:03 +0000 | [diff] [blame] | 4254 | __ Movn(t3, t2, t1); // Only if t6 is gt kBinary32MaxExponent. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4255 | __ Branch(&done, gt, t6, Operand(kBinary32MaxExponent)); |
| 4256 | |
| 4257 | __ Slt(t1, t6, Operand(kBinary32MinExponent)); |
| 4258 | __ And(t2, t3, Operand(HeapNumber::kSignMask)); |
mstarzinger@chromium.org | 3233d2f | 2012-03-14 11:16:03 +0000 | [diff] [blame] | 4259 | __ Movn(t3, t2, t1); // Only if t6 is lt kBinary32MinExponent. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4260 | __ Branch(&done, lt, t6, Operand(kBinary32MinExponent)); |
| 4261 | |
| 4262 | __ And(t7, t3, Operand(HeapNumber::kSignMask)); |
| 4263 | __ And(t3, t3, Operand(HeapNumber::kMantissaMask)); |
| 4264 | __ sll(t3, t3, kMantissaInHiWordShift); |
| 4265 | __ or_(t7, t7, t3); |
| 4266 | __ srl(t4, t4, kMantissaInLoWordShift); |
| 4267 | __ or_(t7, t7, t4); |
| 4268 | __ sll(t6, t6, kBinary32ExponentShift); |
| 4269 | __ or_(t3, t7, t6); |
| 4270 | |
| 4271 | __ bind(&done); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4272 | __ sll(t9, key, 1); |
rossberg@chromium.org | 400388e | 2012-06-06 09:29:22 +0000 | [diff] [blame] | 4273 | __ addu(t9, a3, t9); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4274 | __ sw(t3, MemOperand(t9, 0)); |
| 4275 | |
| 4276 | // Entry registers are intact, a0 holds the value which is the return |
| 4277 | // value. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4278 | __ mov(v0, a0); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4279 | __ Ret(); |
| 4280 | |
| 4281 | __ bind(&nan_or_infinity_or_zero); |
| 4282 | __ And(t7, t3, Operand(HeapNumber::kSignMask)); |
| 4283 | __ And(t3, t3, Operand(HeapNumber::kMantissaMask)); |
| 4284 | __ or_(t6, t6, t7); |
| 4285 | __ sll(t3, t3, kMantissaInHiWordShift); |
| 4286 | __ or_(t6, t6, t3); |
| 4287 | __ srl(t4, t4, kMantissaInLoWordShift); |
| 4288 | __ or_(t3, t6, t4); |
| 4289 | __ Branch(&done); |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4290 | } else if (elements_kind == EXTERNAL_DOUBLE_ELEMENTS) { |
rossberg@chromium.org | 400388e | 2012-06-06 09:29:22 +0000 | [diff] [blame] | 4291 | __ sll(t8, key, 2); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4292 | __ addu(t8, a3, t8); |
| 4293 | // t8: effective address of destination element. |
| 4294 | __ sw(t4, MemOperand(t8, 0)); |
| 4295 | __ sw(t3, MemOperand(t8, Register::kSizeInBytes)); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4296 | __ mov(v0, a0); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4297 | __ Ret(); |
| 4298 | } else { |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 4299 | bool is_signed_type = IsElementTypeSigned(elements_kind); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4300 | int meaningfull_bits = is_signed_type ? (kBitsPerInt - 1) : kBitsPerInt; |
| 4301 | int32_t min_value = is_signed_type ? 0x80000000 : 0x00000000; |
| 4302 | |
| 4303 | Label done, sign; |
| 4304 | |
| 4305 | // Test for all special exponent values: zeros, subnormal numbers, NaNs |
| 4306 | // and infinities. All these should be converted to 0. |
| 4307 | __ li(t5, HeapNumber::kExponentMask); |
| 4308 | __ and_(t6, t3, t5); |
mstarzinger@chromium.org | 3233d2f | 2012-03-14 11:16:03 +0000 | [diff] [blame] | 4309 | __ Movz(t3, zero_reg, t6); // Only if t6 is equal to zero. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4310 | __ Branch(&done, eq, t6, Operand(zero_reg)); |
| 4311 | |
| 4312 | __ xor_(t2, t6, t5); |
mstarzinger@chromium.org | 3233d2f | 2012-03-14 11:16:03 +0000 | [diff] [blame] | 4313 | __ Movz(t3, zero_reg, t2); // Only if t6 is equal to t5. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4314 | __ Branch(&done, eq, t6, Operand(t5)); |
| 4315 | |
| 4316 | // Unbias exponent. |
| 4317 | __ srl(t6, t6, HeapNumber::kExponentShift); |
| 4318 | __ Subu(t6, t6, Operand(HeapNumber::kExponentBias)); |
| 4319 | // If exponent is negative then result is 0. |
| 4320 | __ slt(t2, t6, zero_reg); |
mstarzinger@chromium.org | 3233d2f | 2012-03-14 11:16:03 +0000 | [diff] [blame] | 4321 | __ Movn(t3, zero_reg, t2); // Only if exponent is negative. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4322 | __ Branch(&done, lt, t6, Operand(zero_reg)); |
| 4323 | |
| 4324 | // If exponent is too big then result is minimal value. |
| 4325 | __ slti(t1, t6, meaningfull_bits - 1); |
| 4326 | __ li(t2, min_value); |
mstarzinger@chromium.org | 3233d2f | 2012-03-14 11:16:03 +0000 | [diff] [blame] | 4327 | __ Movz(t3, t2, t1); // Only if t6 is ge meaningfull_bits - 1. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4328 | __ Branch(&done, ge, t6, Operand(meaningfull_bits - 1)); |
| 4329 | |
| 4330 | __ And(t5, t3, Operand(HeapNumber::kSignMask)); |
| 4331 | __ And(t3, t3, Operand(HeapNumber::kMantissaMask)); |
| 4332 | __ Or(t3, t3, Operand(1u << HeapNumber::kMantissaBitsInTopWord)); |
| 4333 | |
| 4334 | __ li(t9, HeapNumber::kMantissaBitsInTopWord); |
| 4335 | __ subu(t6, t9, t6); |
| 4336 | __ slt(t1, t6, zero_reg); |
| 4337 | __ srlv(t2, t3, t6); |
mstarzinger@chromium.org | 3233d2f | 2012-03-14 11:16:03 +0000 | [diff] [blame] | 4338 | __ Movz(t3, t2, t1); // Only if t6 is positive. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4339 | __ Branch(&sign, ge, t6, Operand(zero_reg)); |
| 4340 | |
| 4341 | __ subu(t6, zero_reg, t6); |
| 4342 | __ sllv(t3, t3, t6); |
| 4343 | __ li(t9, meaningfull_bits); |
| 4344 | __ subu(t6, t9, t6); |
| 4345 | __ srlv(t4, t4, t6); |
| 4346 | __ or_(t3, t3, t4); |
| 4347 | |
| 4348 | __ bind(&sign); |
| 4349 | __ subu(t2, t3, zero_reg); |
mstarzinger@chromium.org | 3233d2f | 2012-03-14 11:16:03 +0000 | [diff] [blame] | 4350 | __ Movz(t3, t2, t5); // Only if t5 is zero. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4351 | |
| 4352 | __ bind(&done); |
| 4353 | |
| 4354 | // Result is in t3. |
| 4355 | // This switch block should be exactly the same as above (FPU mode). |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 4356 | switch (elements_kind) { |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4357 | case EXTERNAL_BYTE_ELEMENTS: |
| 4358 | case EXTERNAL_UNSIGNED_BYTE_ELEMENTS: |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4359 | __ srl(t8, key, 1); |
| 4360 | __ addu(t8, a3, t8); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4361 | __ sb(t3, MemOperand(t8, 0)); |
| 4362 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4363 | case EXTERNAL_SHORT_ELEMENTS: |
| 4364 | case EXTERNAL_UNSIGNED_SHORT_ELEMENTS: |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4365 | __ addu(t8, a3, key); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4366 | __ sh(t3, MemOperand(t8, 0)); |
| 4367 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4368 | case EXTERNAL_INT_ELEMENTS: |
| 4369 | case EXTERNAL_UNSIGNED_INT_ELEMENTS: |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 4370 | __ sll(t8, key, 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4371 | __ addu(t8, a3, t8); |
| 4372 | __ sw(t3, MemOperand(t8, 0)); |
| 4373 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4374 | case EXTERNAL_PIXEL_ELEMENTS: |
| 4375 | case EXTERNAL_FLOAT_ELEMENTS: |
| 4376 | case EXTERNAL_DOUBLE_ELEMENTS: |
| 4377 | case FAST_ELEMENTS: |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 4378 | case FAST_SMI_ELEMENTS: |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4379 | case FAST_DOUBLE_ELEMENTS: |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 4380 | case FAST_HOLEY_ELEMENTS: |
| 4381 | case FAST_HOLEY_SMI_ELEMENTS: |
| 4382 | case FAST_HOLEY_DOUBLE_ELEMENTS: |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 4383 | case DICTIONARY_ELEMENTS: |
| 4384 | case NON_STRICT_ARGUMENTS_ELEMENTS: |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4385 | UNREACHABLE(); |
| 4386 | break; |
| 4387 | } |
| 4388 | } |
| 4389 | } |
| 4390 | } |
| 4391 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4392 | // Slow case, key and receiver still in a0 and a1. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4393 | __ bind(&slow); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4394 | __ IncrementCounter( |
| 4395 | masm->isolate()->counters()->keyed_load_external_array_slow(), |
| 4396 | 1, a2, a3); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4397 | // Entry registers are intact. |
| 4398 | // ---------- S t a t e -------------- |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4399 | // -- ra : return address |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4400 | // -- a0 : key |
| 4401 | // -- a1 : receiver |
| 4402 | // ----------------------------------- |
| 4403 | Handle<Code> slow_ic = |
| 4404 | masm->isolate()->builtins()->KeyedStoreIC_Slow(); |
| 4405 | __ Jump(slow_ic, RelocInfo::CODE_TARGET); |
| 4406 | |
| 4407 | // Miss case, call the runtime. |
| 4408 | __ bind(&miss_force_generic); |
| 4409 | |
| 4410 | // ---------- S t a t e -------------- |
| 4411 | // -- ra : return address |
| 4412 | // -- a0 : key |
| 4413 | // -- a1 : receiver |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4414 | // ----------------------------------- |
| 4415 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4416 | Handle<Code> miss_ic = |
| 4417 | masm->isolate()->builtins()->KeyedStoreIC_MissForceGeneric(); |
| 4418 | __ Jump(miss_ic, RelocInfo::CODE_TARGET); |
| 4419 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4420 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4421 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4422 | void KeyedLoadStubCompiler::GenerateLoadFastElement(MacroAssembler* masm) { |
| 4423 | // ----------- S t a t e ------------- |
| 4424 | // -- ra : return address |
| 4425 | // -- a0 : key |
| 4426 | // -- a1 : receiver |
| 4427 | // ----------------------------------- |
| 4428 | Label miss_force_generic; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 4429 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4430 | // This stub is meant to be tail-jumped to, the receiver must already |
| 4431 | // have been verified by the caller to not be a smi. |
| 4432 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 4433 | // Check that the key is a smi or a heap number convertible to a smi. |
| 4434 | GenerateSmiKeyCheck(masm, a0, t0, t1, f2, &miss_force_generic); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4435 | |
| 4436 | // Get the elements array. |
| 4437 | __ lw(a2, FieldMemOperand(a1, JSObject::kElementsOffset)); |
| 4438 | __ AssertFastElements(a2); |
| 4439 | |
| 4440 | // Check that the key is within bounds. |
| 4441 | __ lw(a3, FieldMemOperand(a2, FixedArray::kLengthOffset)); |
ulan@chromium.org | 6ff6514 | 2012-03-21 09:52:17 +0000 | [diff] [blame] | 4442 | __ Branch(USE_DELAY_SLOT, &miss_force_generic, hs, a0, Operand(a3)); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4443 | |
| 4444 | // Load the result and make sure it's not the hole. |
| 4445 | __ Addu(a3, a2, Operand(FixedArray::kHeaderSize - kHeapObjectTag)); |
fschneider@chromium.org | 1805e21 | 2011-09-05 10:49:12 +0000 | [diff] [blame] | 4446 | STATIC_ASSERT(kSmiTag == 0 && kSmiTagSize < kPointerSizeLog2); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4447 | __ sll(t0, a0, kPointerSizeLog2 - kSmiTagSize); |
| 4448 | __ Addu(t0, t0, a3); |
| 4449 | __ lw(t0, MemOperand(t0)); |
| 4450 | __ LoadRoot(t1, Heap::kTheHoleValueRootIndex); |
| 4451 | __ Branch(&miss_force_generic, eq, t0, Operand(t1)); |
ulan@chromium.org | 6ff6514 | 2012-03-21 09:52:17 +0000 | [diff] [blame] | 4452 | __ Ret(USE_DELAY_SLOT); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4453 | __ mov(v0, t0); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4454 | |
| 4455 | __ bind(&miss_force_generic); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 4456 | Handle<Code> stub = |
| 4457 | masm->isolate()->builtins()->KeyedLoadIC_MissForceGeneric(); |
| 4458 | __ Jump(stub, RelocInfo::CODE_TARGET); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4459 | } |
| 4460 | |
| 4461 | |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 4462 | void KeyedLoadStubCompiler::GenerateLoadFastDoubleElement( |
| 4463 | MacroAssembler* masm) { |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 4464 | // ----------- S t a t e ------------- |
| 4465 | // -- ra : return address |
| 4466 | // -- a0 : key |
| 4467 | // -- a1 : receiver |
| 4468 | // ----------------------------------- |
| 4469 | Label miss_force_generic, slow_allocate_heapnumber; |
| 4470 | |
| 4471 | Register key_reg = a0; |
| 4472 | Register receiver_reg = a1; |
| 4473 | Register elements_reg = a2; |
| 4474 | Register heap_number_reg = a2; |
| 4475 | Register indexed_double_offset = a3; |
| 4476 | Register scratch = t0; |
| 4477 | Register scratch2 = t1; |
| 4478 | Register scratch3 = t2; |
| 4479 | Register heap_number_map = t3; |
| 4480 | |
| 4481 | // This stub is meant to be tail-jumped to, the receiver must already |
| 4482 | // have been verified by the caller to not be a smi. |
| 4483 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 4484 | // Check that the key is a smi or a heap number convertible to a smi. |
| 4485 | GenerateSmiKeyCheck(masm, key_reg, t0, t1, f2, &miss_force_generic); |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 4486 | |
| 4487 | // Get the elements array. |
| 4488 | __ lw(elements_reg, |
| 4489 | FieldMemOperand(receiver_reg, JSObject::kElementsOffset)); |
| 4490 | |
| 4491 | // Check that the key is within bounds. |
| 4492 | __ lw(scratch, FieldMemOperand(elements_reg, FixedArray::kLengthOffset)); |
| 4493 | __ Branch(&miss_force_generic, hs, key_reg, Operand(scratch)); |
| 4494 | |
| 4495 | // Load the upper word of the double in the fixed array and test for NaN. |
| 4496 | __ sll(scratch2, key_reg, kDoubleSizeLog2 - kSmiTagSize); |
| 4497 | __ Addu(indexed_double_offset, elements_reg, Operand(scratch2)); |
| 4498 | uint32_t upper_32_offset = FixedArray::kHeaderSize + sizeof(kHoleNanLower32); |
| 4499 | __ lw(scratch, FieldMemOperand(indexed_double_offset, upper_32_offset)); |
| 4500 | __ Branch(&miss_force_generic, eq, scratch, Operand(kHoleNanUpper32)); |
| 4501 | |
| 4502 | // Non-NaN. Allocate a new heap number and copy the double value into it. |
| 4503 | __ LoadRoot(heap_number_map, Heap::kHeapNumberMapRootIndex); |
| 4504 | __ AllocateHeapNumber(heap_number_reg, scratch2, scratch3, |
| 4505 | heap_number_map, &slow_allocate_heapnumber); |
| 4506 | |
| 4507 | // Don't need to reload the upper 32 bits of the double, it's already in |
| 4508 | // scratch. |
| 4509 | __ sw(scratch, FieldMemOperand(heap_number_reg, |
| 4510 | HeapNumber::kExponentOffset)); |
| 4511 | __ lw(scratch, FieldMemOperand(indexed_double_offset, |
| 4512 | FixedArray::kHeaderSize)); |
| 4513 | __ sw(scratch, FieldMemOperand(heap_number_reg, |
| 4514 | HeapNumber::kMantissaOffset)); |
| 4515 | |
| 4516 | __ mov(v0, heap_number_reg); |
| 4517 | __ Ret(); |
| 4518 | |
| 4519 | __ bind(&slow_allocate_heapnumber); |
| 4520 | Handle<Code> slow_ic = |
| 4521 | masm->isolate()->builtins()->KeyedLoadIC_Slow(); |
| 4522 | __ Jump(slow_ic, RelocInfo::CODE_TARGET); |
| 4523 | |
| 4524 | __ bind(&miss_force_generic); |
| 4525 | Handle<Code> miss_ic = |
| 4526 | masm->isolate()->builtins()->KeyedLoadIC_MissForceGeneric(); |
| 4527 | __ Jump(miss_ic, RelocInfo::CODE_TARGET); |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 4528 | } |
| 4529 | |
| 4530 | |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 4531 | void KeyedStoreStubCompiler::GenerateStoreFastElement( |
| 4532 | MacroAssembler* masm, |
| 4533 | bool is_js_array, |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 4534 | ElementsKind elements_kind, |
| 4535 | KeyedAccessGrowMode grow_mode) { |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4536 | // ----------- S t a t e ------------- |
| 4537 | // -- a0 : value |
| 4538 | // -- a1 : key |
| 4539 | // -- a2 : receiver |
| 4540 | // -- ra : return address |
| 4541 | // -- a3 : scratch |
| 4542 | // -- a4 : scratch (elements) |
| 4543 | // ----------------------------------- |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 4544 | Label miss_force_generic, transition_elements_kind, grow, slow; |
| 4545 | Label finish_store, check_capacity; |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4546 | |
| 4547 | Register value_reg = a0; |
| 4548 | Register key_reg = a1; |
| 4549 | Register receiver_reg = a2; |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 4550 | Register scratch = t0; |
| 4551 | Register elements_reg = a3; |
| 4552 | Register length_reg = t1; |
| 4553 | Register scratch2 = t2; |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4554 | |
| 4555 | // This stub is meant to be tail-jumped to, the receiver must already |
| 4556 | // have been verified by the caller to not be a smi. |
| 4557 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 4558 | // Check that the key is a smi or a heap number convertible to a smi. |
| 4559 | GenerateSmiKeyCheck(masm, key_reg, t0, t1, f2, &miss_force_generic); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4560 | |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 4561 | if (IsFastSmiElementsKind(elements_kind)) { |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 4562 | __ JumpIfNotSmi(value_reg, &transition_elements_kind); |
| 4563 | } |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4564 | |
| 4565 | // Check that the key is within bounds. |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 4566 | __ lw(elements_reg, |
| 4567 | FieldMemOperand(receiver_reg, JSObject::kElementsOffset)); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4568 | if (is_js_array) { |
| 4569 | __ lw(scratch, FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); |
| 4570 | } else { |
| 4571 | __ lw(scratch, FieldMemOperand(elements_reg, FixedArray::kLengthOffset)); |
| 4572 | } |
| 4573 | // Compare smis. |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 4574 | if (is_js_array && grow_mode == ALLOW_JSARRAY_GROWTH) { |
| 4575 | __ Branch(&grow, hs, key_reg, Operand(scratch)); |
| 4576 | } else { |
| 4577 | __ Branch(&miss_force_generic, hs, key_reg, Operand(scratch)); |
| 4578 | } |
| 4579 | |
| 4580 | // Make sure elements is a fast element array, not 'cow'. |
| 4581 | __ CheckMap(elements_reg, |
| 4582 | scratch, |
| 4583 | Heap::kFixedArrayMapRootIndex, |
| 4584 | &miss_force_generic, |
| 4585 | DONT_DO_SMI_CHECK); |
| 4586 | |
| 4587 | __ bind(&finish_store); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4588 | |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 4589 | if (IsFastSmiElementsKind(elements_kind)) { |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 4590 | __ Addu(scratch, |
| 4591 | elements_reg, |
| 4592 | Operand(FixedArray::kHeaderSize - kHeapObjectTag)); |
| 4593 | STATIC_ASSERT(kSmiTag == 0 && kSmiTagSize < kPointerSizeLog2); |
| 4594 | __ sll(scratch2, key_reg, kPointerSizeLog2 - kSmiTagSize); |
| 4595 | __ Addu(scratch, scratch, scratch2); |
| 4596 | __ sw(value_reg, MemOperand(scratch)); |
| 4597 | } else { |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 4598 | ASSERT(IsFastObjectElementsKind(elements_kind)); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 4599 | __ Addu(scratch, |
| 4600 | elements_reg, |
| 4601 | Operand(FixedArray::kHeaderSize - kHeapObjectTag)); |
| 4602 | STATIC_ASSERT(kSmiTag == 0 && kSmiTagSize < kPointerSizeLog2); |
| 4603 | __ sll(scratch2, key_reg, kPointerSizeLog2 - kSmiTagSize); |
| 4604 | __ Addu(scratch, scratch, scratch2); |
| 4605 | __ sw(value_reg, MemOperand(scratch)); |
| 4606 | __ mov(receiver_reg, value_reg); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 4607 | __ RecordWrite(elements_reg, // Object. |
| 4608 | scratch, // Address. |
| 4609 | receiver_reg, // Value. |
| 4610 | kRAHasNotBeenSaved, |
| 4611 | kDontSaveFPRegs); |
| 4612 | } |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 4613 | // value_reg (a0) is preserved. |
| 4614 | // Done. |
| 4615 | __ Ret(); |
| 4616 | |
| 4617 | __ bind(&miss_force_generic); |
| 4618 | Handle<Code> ic = |
| 4619 | masm->isolate()->builtins()->KeyedStoreIC_MissForceGeneric(); |
| 4620 | __ Jump(ic, RelocInfo::CODE_TARGET); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 4621 | |
| 4622 | __ bind(&transition_elements_kind); |
| 4623 | Handle<Code> ic_miss = masm->isolate()->builtins()->KeyedStoreIC_Miss(); |
| 4624 | __ Jump(ic_miss, RelocInfo::CODE_TARGET); |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 4625 | |
| 4626 | if (is_js_array && grow_mode == ALLOW_JSARRAY_GROWTH) { |
| 4627 | // Grow the array by a single element if possible. |
| 4628 | __ bind(&grow); |
| 4629 | |
| 4630 | // Make sure the array is only growing by a single element, anything else |
| 4631 | // must be handled by the runtime. |
| 4632 | __ Branch(&miss_force_generic, ne, key_reg, Operand(scratch)); |
| 4633 | |
| 4634 | // Check for the empty array, and preallocate a small backing store if |
| 4635 | // possible. |
| 4636 | __ lw(length_reg, |
| 4637 | FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); |
| 4638 | __ lw(elements_reg, |
| 4639 | FieldMemOperand(receiver_reg, JSObject::kElementsOffset)); |
| 4640 | __ LoadRoot(at, Heap::kEmptyFixedArrayRootIndex); |
| 4641 | __ Branch(&check_capacity, ne, elements_reg, Operand(at)); |
| 4642 | |
| 4643 | int size = FixedArray::SizeFor(JSArray::kPreallocatedArrayElements); |
| 4644 | __ AllocateInNewSpace(size, elements_reg, scratch, scratch2, &slow, |
| 4645 | TAG_OBJECT); |
| 4646 | |
| 4647 | __ LoadRoot(scratch, Heap::kFixedArrayMapRootIndex); |
| 4648 | __ sw(scratch, FieldMemOperand(elements_reg, JSObject::kMapOffset)); |
| 4649 | __ li(scratch, Operand(Smi::FromInt(JSArray::kPreallocatedArrayElements))); |
| 4650 | __ sw(scratch, FieldMemOperand(elements_reg, FixedArray::kLengthOffset)); |
| 4651 | __ LoadRoot(scratch, Heap::kTheHoleValueRootIndex); |
| 4652 | for (int i = 1; i < JSArray::kPreallocatedArrayElements; ++i) { |
| 4653 | __ sw(scratch, FieldMemOperand(elements_reg, FixedArray::SizeFor(i))); |
| 4654 | } |
| 4655 | |
| 4656 | // Store the element at index zero. |
| 4657 | __ sw(value_reg, FieldMemOperand(elements_reg, FixedArray::SizeFor(0))); |
| 4658 | |
| 4659 | // Install the new backing store in the JSArray. |
| 4660 | __ sw(elements_reg, |
| 4661 | FieldMemOperand(receiver_reg, JSObject::kElementsOffset)); |
| 4662 | __ RecordWriteField(receiver_reg, JSObject::kElementsOffset, elements_reg, |
| 4663 | scratch, kRAHasNotBeenSaved, kDontSaveFPRegs, |
| 4664 | EMIT_REMEMBERED_SET, OMIT_SMI_CHECK); |
| 4665 | |
| 4666 | // Increment the length of the array. |
| 4667 | __ li(length_reg, Operand(Smi::FromInt(1))); |
| 4668 | __ sw(length_reg, FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); |
| 4669 | __ Ret(); |
| 4670 | |
| 4671 | __ bind(&check_capacity); |
| 4672 | // Check for cow elements, in general they are not handled by this stub |
| 4673 | __ CheckMap(elements_reg, |
| 4674 | scratch, |
| 4675 | Heap::kFixedCOWArrayMapRootIndex, |
| 4676 | &miss_force_generic, |
| 4677 | DONT_DO_SMI_CHECK); |
| 4678 | |
| 4679 | __ lw(scratch, FieldMemOperand(elements_reg, FixedArray::kLengthOffset)); |
| 4680 | __ Branch(&slow, hs, length_reg, Operand(scratch)); |
| 4681 | |
| 4682 | // Grow the array and finish the store. |
| 4683 | __ Addu(length_reg, length_reg, Operand(Smi::FromInt(1))); |
| 4684 | __ sw(length_reg, FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); |
| 4685 | __ jmp(&finish_store); |
| 4686 | |
| 4687 | __ bind(&slow); |
| 4688 | Handle<Code> ic_slow = masm->isolate()->builtins()->KeyedStoreIC_Slow(); |
| 4689 | __ Jump(ic_slow, RelocInfo::CODE_TARGET); |
| 4690 | } |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 4691 | } |
| 4692 | |
| 4693 | |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 4694 | void KeyedStoreStubCompiler::GenerateStoreFastDoubleElement( |
| 4695 | MacroAssembler* masm, |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 4696 | bool is_js_array, |
| 4697 | KeyedAccessGrowMode grow_mode) { |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 4698 | // ----------- S t a t e ------------- |
| 4699 | // -- a0 : value |
| 4700 | // -- a1 : key |
| 4701 | // -- a2 : receiver |
| 4702 | // -- ra : return address |
| 4703 | // -- a3 : scratch |
| 4704 | // -- t0 : scratch (elements_reg) |
| 4705 | // -- t1 : scratch (mantissa_reg) |
| 4706 | // -- t2 : scratch (exponent_reg) |
| 4707 | // -- t3 : scratch4 |
| 4708 | // ----------------------------------- |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 4709 | Label miss_force_generic, transition_elements_kind, grow, slow; |
| 4710 | Label finish_store, check_capacity; |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 4711 | |
| 4712 | Register value_reg = a0; |
| 4713 | Register key_reg = a1; |
| 4714 | Register receiver_reg = a2; |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 4715 | Register elements_reg = a3; |
| 4716 | Register scratch1 = t0; |
| 4717 | Register scratch2 = t1; |
| 4718 | Register scratch3 = t2; |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 4719 | Register scratch4 = t3; |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 4720 | Register length_reg = t3; |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 4721 | |
| 4722 | // This stub is meant to be tail-jumped to, the receiver must already |
| 4723 | // 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] | 4724 | |
| 4725 | // Check that the key is a smi or a heap number convertible to a smi. |
| 4726 | GenerateSmiKeyCheck(masm, key_reg, t0, t1, f2, &miss_force_generic); |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 4727 | |
| 4728 | __ lw(elements_reg, |
| 4729 | FieldMemOperand(receiver_reg, JSObject::kElementsOffset)); |
| 4730 | |
| 4731 | // Check that the key is within bounds. |
| 4732 | if (is_js_array) { |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 4733 | __ lw(scratch1, FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 4734 | } else { |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 4735 | __ lw(scratch1, |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 4736 | FieldMemOperand(elements_reg, FixedArray::kLengthOffset)); |
| 4737 | } |
| 4738 | // Compare smis, unsigned compare catches both negative and out-of-bound |
| 4739 | // indexes. |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 4740 | if (grow_mode == ALLOW_JSARRAY_GROWTH) { |
| 4741 | __ Branch(&grow, hs, key_reg, Operand(scratch1)); |
| 4742 | } else { |
| 4743 | __ Branch(&miss_force_generic, hs, key_reg, Operand(scratch1)); |
| 4744 | } |
| 4745 | |
| 4746 | __ bind(&finish_store); |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 4747 | |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 4748 | __ StoreNumberToDoubleElements(value_reg, |
| 4749 | key_reg, |
| 4750 | receiver_reg, |
| 4751 | elements_reg, |
| 4752 | scratch1, |
| 4753 | scratch2, |
| 4754 | scratch3, |
| 4755 | scratch4, |
| 4756 | &transition_elements_kind); |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 4757 | |
ricow@chromium.org | 4668a2c | 2011-08-29 10:41:00 +0000 | [diff] [blame] | 4758 | __ Ret(USE_DELAY_SLOT); |
| 4759 | __ mov(v0, value_reg); // In delay slot. |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 4760 | |
| 4761 | // Handle store cache miss, replacing the ic with the generic stub. |
| 4762 | __ bind(&miss_force_generic); |
| 4763 | Handle<Code> ic = |
| 4764 | masm->isolate()->builtins()->KeyedStoreIC_MissForceGeneric(); |
| 4765 | __ Jump(ic, RelocInfo::CODE_TARGET); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 4766 | |
| 4767 | __ bind(&transition_elements_kind); |
| 4768 | Handle<Code> ic_miss = masm->isolate()->builtins()->KeyedStoreIC_Miss(); |
| 4769 | __ Jump(ic_miss, RelocInfo::CODE_TARGET); |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 4770 | |
| 4771 | if (is_js_array && grow_mode == ALLOW_JSARRAY_GROWTH) { |
| 4772 | // Grow the array by a single element if possible. |
| 4773 | __ bind(&grow); |
| 4774 | |
| 4775 | // Make sure the array is only growing by a single element, anything else |
| 4776 | // must be handled by the runtime. |
| 4777 | __ Branch(&miss_force_generic, ne, key_reg, Operand(scratch1)); |
| 4778 | |
| 4779 | // Transition on values that can't be stored in a FixedDoubleArray. |
| 4780 | Label value_is_smi; |
| 4781 | __ JumpIfSmi(value_reg, &value_is_smi); |
| 4782 | __ lw(scratch1, FieldMemOperand(value_reg, HeapObject::kMapOffset)); |
| 4783 | __ LoadRoot(at, Heap::kHeapNumberMapRootIndex); |
| 4784 | __ Branch(&transition_elements_kind, ne, scratch1, Operand(at)); |
| 4785 | __ bind(&value_is_smi); |
| 4786 | |
| 4787 | // Check for the empty array, and preallocate a small backing store if |
| 4788 | // possible. |
| 4789 | __ lw(length_reg, |
| 4790 | FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); |
| 4791 | __ lw(elements_reg, |
| 4792 | FieldMemOperand(receiver_reg, JSObject::kElementsOffset)); |
| 4793 | __ LoadRoot(at, Heap::kEmptyFixedArrayRootIndex); |
| 4794 | __ Branch(&check_capacity, ne, elements_reg, Operand(at)); |
| 4795 | |
| 4796 | int size = FixedDoubleArray::SizeFor(JSArray::kPreallocatedArrayElements); |
| 4797 | __ AllocateInNewSpace(size, elements_reg, scratch1, scratch2, &slow, |
| 4798 | TAG_OBJECT); |
| 4799 | |
| 4800 | // Initialize the new FixedDoubleArray. Leave elements unitialized for |
| 4801 | // efficiency, they are guaranteed to be initialized before use. |
| 4802 | __ LoadRoot(scratch1, Heap::kFixedDoubleArrayMapRootIndex); |
| 4803 | __ sw(scratch1, FieldMemOperand(elements_reg, JSObject::kMapOffset)); |
| 4804 | __ li(scratch1, Operand(Smi::FromInt(JSArray::kPreallocatedArrayElements))); |
| 4805 | __ sw(scratch1, |
| 4806 | FieldMemOperand(elements_reg, FixedDoubleArray::kLengthOffset)); |
| 4807 | |
| 4808 | // Install the new backing store in the JSArray. |
| 4809 | __ sw(elements_reg, |
| 4810 | FieldMemOperand(receiver_reg, JSObject::kElementsOffset)); |
| 4811 | __ RecordWriteField(receiver_reg, JSObject::kElementsOffset, elements_reg, |
| 4812 | scratch1, kRAHasNotBeenSaved, kDontSaveFPRegs, |
| 4813 | EMIT_REMEMBERED_SET, OMIT_SMI_CHECK); |
| 4814 | |
| 4815 | // Increment the length of the array. |
| 4816 | __ li(length_reg, Operand(Smi::FromInt(1))); |
| 4817 | __ sw(length_reg, FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); |
danno@chromium.org | 00379b8 | 2012-05-04 09:16:29 +0000 | [diff] [blame] | 4818 | __ lw(elements_reg, |
| 4819 | FieldMemOperand(receiver_reg, JSObject::kElementsOffset)); |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 4820 | __ jmp(&finish_store); |
| 4821 | |
| 4822 | __ bind(&check_capacity); |
| 4823 | // Make sure that the backing store can hold additional elements. |
| 4824 | __ lw(scratch1, |
| 4825 | FieldMemOperand(elements_reg, FixedDoubleArray::kLengthOffset)); |
| 4826 | __ Branch(&slow, hs, length_reg, Operand(scratch1)); |
| 4827 | |
| 4828 | // Grow the array and finish the store. |
| 4829 | __ Addu(length_reg, length_reg, Operand(Smi::FromInt(1))); |
| 4830 | __ sw(length_reg, FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); |
| 4831 | __ jmp(&finish_store); |
| 4832 | |
| 4833 | __ bind(&slow); |
| 4834 | Handle<Code> ic_slow = masm->isolate()->builtins()->KeyedStoreIC_Slow(); |
| 4835 | __ Jump(ic_slow, RelocInfo::CODE_TARGET); |
| 4836 | } |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 4837 | } |
| 4838 | |
| 4839 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 4840 | #undef __ |
| 4841 | |
| 4842 | } } // namespace v8::internal |
| 4843 | |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 4844 | #endif // V8_TARGET_ARCH_MIPS |