erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 1 | // Copyright 2012 the V8 project authors. All rights reserved. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +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_ARM) |
| 31 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 32 | #include "ic-inl.h" |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 33 | #include "codegen.h" |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 34 | #include "stub-cache.h" |
| 35 | |
kasperl@chromium.org | 71affb5 | 2009-05-26 05:44:31 +0000 | [diff] [blame] | 36 | namespace v8 { |
| 37 | namespace internal { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 38 | |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 39 | #define __ ACCESS_MASM(masm) |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 40 | |
| 41 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 42 | static void ProbeTable(Isolate* isolate, |
| 43 | MacroAssembler* masm, |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 44 | Code::Flags flags, |
| 45 | StubCache::Table table, |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 46 | Register receiver, |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 47 | Register name, |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 48 | // Number of the cache entry, not scaled. |
fschneider@chromium.org | e03fb64 | 2010-11-01 12:34:09 +0000 | [diff] [blame] | 49 | Register offset, |
| 50 | Register scratch, |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 51 | Register scratch2, |
| 52 | Register offset_scratch) { |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 53 | ExternalReference key_offset(isolate->stub_cache()->key_reference(table)); |
| 54 | ExternalReference value_offset(isolate->stub_cache()->value_reference(table)); |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 55 | ExternalReference map_offset(isolate->stub_cache()->map_reference(table)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 56 | |
fschneider@chromium.org | e03fb64 | 2010-11-01 12:34:09 +0000 | [diff] [blame] | 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()); |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 59 | uint32_t map_off_addr = reinterpret_cast<uint32_t>(map_offset.address()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 60 | |
fschneider@chromium.org | e03fb64 | 2010-11-01 12:34:09 +0000 | [diff] [blame] | 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)); |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +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)); |
fschneider@chromium.org | e03fb64 | 2010-11-01 12:34:09 +0000 | [diff] [blame] | 68 | |
| 69 | Label miss; |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +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 | __ add(offset_scratch, offset, Operand(offset, LSL, 1)); |
| 75 | |
| 76 | // Calculate the base address of the entry. |
| 77 | __ mov(base_addr, Operand(key_offset)); |
| 78 | __ add(base_addr, base_addr, Operand(offset_scratch, LSL, kPointerSizeLog2)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 79 | |
| 80 | // Check that the key in the entry matches the name. |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 81 | __ ldr(ip, MemOperand(base_addr, 0)); |
fschneider@chromium.org | 013f3e1 | 2010-04-26 13:27:52 +0000 | [diff] [blame] | 82 | __ cmp(name, ip); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 83 | __ b(ne, &miss); |
| 84 | |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 85 | // Check the map matches. |
| 86 | __ ldr(ip, MemOperand(base_addr, map_off_addr - key_off_addr)); |
| 87 | __ ldr(scratch2, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
| 88 | __ cmp(ip, scratch2); |
| 89 | __ b(ne, &miss); |
| 90 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 91 | // Get the code entry from the cache. |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 92 | Register code = scratch2; |
| 93 | scratch2 = no_reg; |
| 94 | __ ldr(code, MemOperand(base_addr, value_off_addr - key_off_addr)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 95 | |
| 96 | // Check that the flags match what we're looking for. |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 97 | Register flags_reg = base_addr; |
| 98 | base_addr = no_reg; |
| 99 | __ ldr(flags_reg, FieldMemOperand(code, Code::kFlagsOffset)); |
jkummerow@chromium.org | 1145ef8 | 2012-02-02 16:21:15 +0000 | [diff] [blame] | 100 | // It's a nice optimization if this constant is encodable in the bic insn. |
| 101 | |
| 102 | uint32_t mask = Code::kFlagsNotUsedInLookup; |
| 103 | ASSERT(__ ImmediateFitsAddrMode1Instruction(mask)); |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 104 | __ bic(flags_reg, flags_reg, Operand(mask)); |
svenpanne@chromium.org | 876cca8 | 2013-03-18 14:43:20 +0000 | [diff] [blame] | 105 | __ cmp(flags_reg, Operand(flags)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 106 | __ b(ne, &miss); |
| 107 | |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 108 | #ifdef DEBUG |
| 109 | if (FLAG_test_secondary_stub_cache && table == StubCache::kPrimary) { |
| 110 | __ jmp(&miss); |
| 111 | } else if (FLAG_test_primary_stub_cache && table == StubCache::kSecondary) { |
| 112 | __ jmp(&miss); |
| 113 | } |
| 114 | #endif |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 115 | |
| 116 | // Jump to the first instruction in the code stub. |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 117 | __ add(pc, code, Operand(Code::kHeaderSize - kHeapObjectTag)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 118 | |
fschneider@chromium.org | e03fb64 | 2010-11-01 12:34:09 +0000 | [diff] [blame] | 119 | // Miss: fall through. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 120 | __ bind(&miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 121 | } |
| 122 | |
| 123 | |
ager@chromium.org | 6a2b0aa | 2010-07-13 20:58:03 +0000 | [diff] [blame] | 124 | // Helper function used to check that the dictionary doesn't contain |
| 125 | // the property. This function may return false negatives, so miss_label |
| 126 | // must always call a backup property check that is complete. |
| 127 | // This function is safe to call if the receiver has fast properties. |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 128 | // Name must be unique and receiver must be a heap object. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 129 | static void GenerateDictionaryNegativeLookup(MacroAssembler* masm, |
| 130 | Label* miss_label, |
| 131 | Register receiver, |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 132 | Handle<Name> name, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 133 | Register scratch0, |
| 134 | Register scratch1) { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 135 | ASSERT(name->IsUniqueName()); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 136 | Counters* counters = masm->isolate()->counters(); |
| 137 | __ IncrementCounter(counters->negative_lookups(), 1, scratch0, scratch1); |
| 138 | __ IncrementCounter(counters->negative_lookups_miss(), 1, scratch0, scratch1); |
| 139 | |
| 140 | Label done; |
| 141 | |
| 142 | const int kInterceptorOrAccessCheckNeededMask = |
| 143 | (1 << Map::kHasNamedInterceptor) | (1 << Map::kIsAccessCheckNeeded); |
| 144 | |
| 145 | // Bail out if the receiver has a named interceptor or requires access checks. |
| 146 | Register map = scratch1; |
| 147 | __ ldr(map, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
| 148 | __ ldrb(scratch0, FieldMemOperand(map, Map::kBitFieldOffset)); |
| 149 | __ tst(scratch0, Operand(kInterceptorOrAccessCheckNeededMask)); |
| 150 | __ b(ne, miss_label); |
| 151 | |
| 152 | // Check that receiver is a JSObject. |
| 153 | __ ldrb(scratch0, FieldMemOperand(map, Map::kInstanceTypeOffset)); |
| 154 | __ cmp(scratch0, Operand(FIRST_SPEC_OBJECT_TYPE)); |
| 155 | __ b(lt, miss_label); |
| 156 | |
| 157 | // Load properties array. |
| 158 | Register properties = scratch0; |
| 159 | __ ldr(properties, FieldMemOperand(receiver, JSObject::kPropertiesOffset)); |
| 160 | // Check that the properties array is a dictionary. |
| 161 | __ ldr(map, FieldMemOperand(properties, HeapObject::kMapOffset)); |
| 162 | Register tmp = properties; |
| 163 | __ LoadRoot(tmp, Heap::kHashTableMapRootIndex); |
| 164 | __ cmp(map, tmp); |
| 165 | __ b(ne, miss_label); |
| 166 | |
| 167 | // Restore the temporarily used register. |
| 168 | __ ldr(properties, FieldMemOperand(receiver, JSObject::kPropertiesOffset)); |
| 169 | |
| 170 | |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 171 | NameDictionaryLookupStub::GenerateNegativeLookup(masm, |
| 172 | miss_label, |
| 173 | &done, |
| 174 | receiver, |
| 175 | properties, |
| 176 | name, |
| 177 | scratch1); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 178 | __ bind(&done); |
| 179 | __ DecrementCounter(counters->negative_lookups_miss(), 1, scratch0, scratch1); |
| 180 | } |
| 181 | |
| 182 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 183 | void StubCache::GenerateProbe(MacroAssembler* masm, |
| 184 | Code::Flags flags, |
| 185 | Register receiver, |
| 186 | Register name, |
kasperl@chromium.org | 86f77b7 | 2009-07-06 08:21:57 +0000 | [diff] [blame] | 187 | Register scratch, |
fschneider@chromium.org | e03fb64 | 2010-11-01 12:34:09 +0000 | [diff] [blame] | 188 | Register extra, |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 189 | Register extra2, |
| 190 | Register extra3) { |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 191 | Isolate* isolate = masm->isolate(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 192 | Label miss; |
| 193 | |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 194 | // Make sure that code is valid. The multiplying code relies on the |
| 195 | // entry size being 12. |
| 196 | ASSERT(sizeof(Entry) == 12); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 197 | |
| 198 | // Make sure the flags does not name a specific type. |
| 199 | ASSERT(Code::ExtractTypeFromFlags(flags) == 0); |
| 200 | |
| 201 | // Make sure that there are no register conflicts. |
| 202 | ASSERT(!scratch.is(receiver)); |
| 203 | ASSERT(!scratch.is(name)); |
fschneider@chromium.org | e03fb64 | 2010-11-01 12:34:09 +0000 | [diff] [blame] | 204 | ASSERT(!extra.is(receiver)); |
| 205 | ASSERT(!extra.is(name)); |
| 206 | ASSERT(!extra.is(scratch)); |
| 207 | ASSERT(!extra2.is(receiver)); |
| 208 | ASSERT(!extra2.is(name)); |
| 209 | ASSERT(!extra2.is(scratch)); |
| 210 | ASSERT(!extra2.is(extra)); |
| 211 | |
| 212 | // Check scratch, extra and extra2 registers are valid. |
| 213 | ASSERT(!scratch.is(no_reg)); |
| 214 | ASSERT(!extra.is(no_reg)); |
| 215 | ASSERT(!extra2.is(no_reg)); |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 216 | ASSERT(!extra3.is(no_reg)); |
| 217 | |
| 218 | Counters* counters = masm->isolate()->counters(); |
| 219 | __ IncrementCounter(counters->megamorphic_stub_cache_probes(), 1, |
| 220 | extra2, extra3); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 221 | |
| 222 | // Check that the receiver isn't a smi. |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 223 | __ JumpIfSmi(receiver, &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 224 | |
| 225 | // Get the map of the receiver and compute the hash. |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 226 | __ ldr(scratch, FieldMemOperand(name, Name::kHashFieldOffset)); |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 227 | __ ldr(ip, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 228 | __ add(scratch, scratch, Operand(ip)); |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 229 | uint32_t mask = kPrimaryTableSize - 1; |
| 230 | // We shift out the last two bits because they are not part of the hash and |
| 231 | // they are always 01 for maps. |
| 232 | __ mov(scratch, Operand(scratch, LSR, kHeapObjectTagSize)); |
jkummerow@chromium.org | 1145ef8 | 2012-02-02 16:21:15 +0000 | [diff] [blame] | 233 | // Mask down the eor argument to the minimum to keep the immediate |
| 234 | // ARM-encodable. |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 235 | __ eor(scratch, scratch, Operand((flags >> kHeapObjectTagSize) & mask)); |
rossberg@chromium.org | 994edf6 | 2012-02-06 10:12:55 +0000 | [diff] [blame] | 236 | // Prefer and_ to ubfx here because ubfx takes 2 cycles. |
| 237 | __ and_(scratch, scratch, Operand(mask)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 238 | |
| 239 | // Probe the primary table. |
jkummerow@chromium.org | 1145ef8 | 2012-02-02 16:21:15 +0000 | [diff] [blame] | 240 | ProbeTable(isolate, |
| 241 | masm, |
| 242 | flags, |
| 243 | kPrimary, |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 244 | receiver, |
jkummerow@chromium.org | 1145ef8 | 2012-02-02 16:21:15 +0000 | [diff] [blame] | 245 | name, |
| 246 | scratch, |
jkummerow@chromium.org | 1145ef8 | 2012-02-02 16:21:15 +0000 | [diff] [blame] | 247 | extra, |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 248 | extra2, |
| 249 | extra3); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 250 | |
| 251 | // Primary miss: Compute hash for secondary probe. |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 252 | __ sub(scratch, scratch, Operand(name, LSR, kHeapObjectTagSize)); |
| 253 | uint32_t mask2 = kSecondaryTableSize - 1; |
| 254 | __ add(scratch, scratch, Operand((flags >> kHeapObjectTagSize) & mask2)); |
rossberg@chromium.org | 994edf6 | 2012-02-06 10:12:55 +0000 | [diff] [blame] | 255 | __ and_(scratch, scratch, Operand(mask2)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 256 | |
| 257 | // Probe the secondary table. |
jkummerow@chromium.org | 1145ef8 | 2012-02-02 16:21:15 +0000 | [diff] [blame] | 258 | ProbeTable(isolate, |
| 259 | masm, |
| 260 | flags, |
| 261 | kSecondary, |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 262 | receiver, |
jkummerow@chromium.org | 1145ef8 | 2012-02-02 16:21:15 +0000 | [diff] [blame] | 263 | name, |
| 264 | scratch, |
jkummerow@chromium.org | 1145ef8 | 2012-02-02 16:21:15 +0000 | [diff] [blame] | 265 | extra, |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 266 | extra2, |
| 267 | extra3); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 268 | |
| 269 | // Cache miss: Fall-through and let caller handle the miss by |
| 270 | // entering the runtime system. |
| 271 | __ bind(&miss); |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 272 | __ IncrementCounter(counters->megamorphic_stub_cache_misses(), 1, |
| 273 | extra2, extra3); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 274 | } |
| 275 | |
| 276 | |
| 277 | void StubCompiler::GenerateLoadGlobalFunctionPrototype(MacroAssembler* masm, |
| 278 | int index, |
| 279 | Register prototype) { |
| 280 | // Load the global or builtins object from the current context. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 281 | __ ldr(prototype, |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 282 | MemOperand(cp, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX))); |
| 283 | // Load the native context from the global or builtins object. |
| 284 | __ ldr(prototype, |
| 285 | FieldMemOperand(prototype, GlobalObject::kNativeContextOffset)); |
| 286 | // Load the function from the native context. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 287 | __ ldr(prototype, MemOperand(prototype, Context::SlotOffset(index))); |
| 288 | // Load the initial map. The global functions all have initial maps. |
| 289 | __ ldr(prototype, |
| 290 | FieldMemOperand(prototype, JSFunction::kPrototypeOrInitialMapOffset)); |
| 291 | // Load the prototype from the initial map. |
| 292 | __ ldr(prototype, FieldMemOperand(prototype, Map::kPrototypeOffset)); |
| 293 | } |
| 294 | |
| 295 | |
lrn@chromium.org | 1af7e1b | 2010-06-07 11:12:01 +0000 | [diff] [blame] | 296 | void StubCompiler::GenerateDirectLoadGlobalFunctionPrototype( |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 297 | MacroAssembler* masm, |
| 298 | int index, |
| 299 | Register prototype, |
| 300 | Label* miss) { |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 301 | Isolate* isolate = masm->isolate(); |
fschneider@chromium.org | c20610a | 2010-09-22 09:44:58 +0000 | [diff] [blame] | 302 | // Check we're still in the same context. |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 303 | __ ldr(prototype, |
| 304 | MemOperand(cp, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX))); |
| 305 | __ Move(ip, isolate->global_object()); |
fschneider@chromium.org | c20610a | 2010-09-22 09:44:58 +0000 | [diff] [blame] | 306 | __ cmp(prototype, ip); |
| 307 | __ b(ne, miss); |
lrn@chromium.org | 1af7e1b | 2010-06-07 11:12:01 +0000 | [diff] [blame] | 308 | // Get the global function with the given index. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 309 | Handle<JSFunction> function( |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 310 | JSFunction::cast(isolate->native_context()->get(index))); |
lrn@chromium.org | 1af7e1b | 2010-06-07 11:12:01 +0000 | [diff] [blame] | 311 | // Load its initial map. The global functions all have initial maps. |
| 312 | __ Move(prototype, Handle<Map>(function->initial_map())); |
| 313 | // Load the prototype from the initial map. |
| 314 | __ ldr(prototype, FieldMemOperand(prototype, Map::kPrototypeOffset)); |
| 315 | } |
| 316 | |
| 317 | |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 318 | void StubCompiler::GenerateFastPropertyLoad(MacroAssembler* masm, |
| 319 | Register dst, |
| 320 | Register src, |
| 321 | bool inobject, |
| 322 | int index, |
| 323 | Representation representation) { |
| 324 | ASSERT(!FLAG_track_double_fields || !representation.IsDouble()); |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 325 | int offset = index * kPointerSize; |
| 326 | if (!inobject) { |
| 327 | // Calculate the offset into the properties array. |
| 328 | offset = offset + FixedArray::kHeaderSize; |
| 329 | __ ldr(dst, FieldMemOperand(src, JSObject::kPropertiesOffset)); |
| 330 | src = dst; |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 331 | } |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 332 | __ ldr(dst, FieldMemOperand(src, offset)); |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 333 | } |
| 334 | |
| 335 | |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 336 | void StubCompiler::GenerateLoadArrayLength(MacroAssembler* masm, |
| 337 | Register receiver, |
| 338 | Register scratch, |
| 339 | Label* miss_label) { |
| 340 | // Check that the receiver isn't a smi. |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 341 | __ JumpIfSmi(receiver, miss_label); |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 342 | |
| 343 | // Check that the object is a JS array. |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 344 | __ CompareObjectType(receiver, scratch, scratch, JS_ARRAY_TYPE); |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 345 | __ b(ne, miss_label); |
| 346 | |
| 347 | // Load length directly from the JS array. |
| 348 | __ ldr(r0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 349 | __ Ret(); |
| 350 | } |
| 351 | |
| 352 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 353 | // Generate code to check if an object is a string. If the object is a |
| 354 | // heap object, its map's instance type is left in the scratch1 register. |
| 355 | // If this is not needed, scratch1 and scratch2 may be the same register. |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 356 | static void GenerateStringCheck(MacroAssembler* masm, |
| 357 | Register receiver, |
| 358 | Register scratch1, |
| 359 | Register scratch2, |
| 360 | Label* smi, |
| 361 | Label* non_string_object) { |
| 362 | // Check that the receiver isn't a smi. |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 363 | __ JumpIfSmi(receiver, smi); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 364 | |
| 365 | // Check that the object is a string. |
| 366 | __ ldr(scratch1, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
| 367 | __ ldrb(scratch1, FieldMemOperand(scratch1, Map::kInstanceTypeOffset)); |
| 368 | __ and_(scratch2, scratch1, Operand(kIsNotStringMask)); |
| 369 | // The cast is to resolve the overload for the argument of 0x0. |
| 370 | __ cmp(scratch2, Operand(static_cast<int32_t>(kStringTag))); |
| 371 | __ b(ne, non_string_object); |
| 372 | } |
| 373 | |
| 374 | |
ager@chromium.org | 3291210 | 2009-01-16 10:38:43 +0000 | [diff] [blame] | 375 | // Generate code to load the length from a string object and return the length. |
| 376 | // If the receiver object is not a string or a wrapped string object the |
| 377 | // execution continues at the miss label. The register containing the |
| 378 | // receiver is potentially clobbered. |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 379 | void StubCompiler::GenerateLoadStringLength(MacroAssembler* masm, |
| 380 | Register receiver, |
| 381 | Register scratch1, |
| 382 | Register scratch2, |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 383 | Label* miss, |
| 384 | bool support_wrappers) { |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 385 | Label check_wrapper; |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 386 | |
| 387 | // Check if the object is a string leaving the instance type in the |
| 388 | // scratch1 register. |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 389 | GenerateStringCheck(masm, receiver, scratch1, scratch2, miss, |
| 390 | support_wrappers ? &check_wrapper : miss); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 391 | |
| 392 | // Load length directly from the string. |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 393 | __ ldr(r0, FieldMemOperand(receiver, String::kLengthOffset)); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 394 | __ Ret(); |
| 395 | |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 396 | if (support_wrappers) { |
| 397 | // Check if the object is a JSValue wrapper. |
| 398 | __ bind(&check_wrapper); |
| 399 | __ cmp(scratch1, Operand(JS_VALUE_TYPE)); |
| 400 | __ b(ne, miss); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 401 | |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 402 | // Unwrap the value and check if the wrapped value is a string. |
| 403 | __ ldr(scratch1, FieldMemOperand(receiver, JSValue::kValueOffset)); |
| 404 | GenerateStringCheck(masm, scratch1, scratch2, scratch2, miss, miss); |
| 405 | __ ldr(r0, FieldMemOperand(scratch1, String::kLengthOffset)); |
| 406 | __ Ret(); |
| 407 | } |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 408 | } |
| 409 | |
| 410 | |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 411 | void StubCompiler::GenerateLoadFunctionPrototype(MacroAssembler* masm, |
| 412 | Register receiver, |
| 413 | Register scratch1, |
| 414 | Register scratch2, |
| 415 | Label* miss_label) { |
| 416 | __ TryGetFunctionPrototype(receiver, scratch1, scratch2, miss_label); |
| 417 | __ mov(r0, scratch1); |
| 418 | __ Ret(); |
| 419 | } |
| 420 | |
| 421 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 422 | // Generate code to check that a global property cell is empty. Create |
| 423 | // the property cell at compilation time if no cell exists for the |
| 424 | // property. |
| 425 | static void GenerateCheckPropertyCell(MacroAssembler* masm, |
| 426 | Handle<GlobalObject> global, |
| 427 | Handle<Name> name, |
| 428 | Register scratch, |
| 429 | Label* miss) { |
| 430 | Handle<JSGlobalPropertyCell> cell = |
| 431 | GlobalObject::EnsurePropertyCell(global, name); |
| 432 | ASSERT(cell->value()->IsTheHole()); |
| 433 | __ mov(scratch, Operand(cell)); |
| 434 | __ ldr(scratch, |
| 435 | FieldMemOperand(scratch, JSGlobalPropertyCell::kValueOffset)); |
| 436 | __ LoadRoot(ip, Heap::kTheHoleValueRootIndex); |
| 437 | __ cmp(scratch, ip); |
| 438 | __ b(ne, miss); |
| 439 | } |
| 440 | |
| 441 | |
| 442 | // Generate StoreTransition code, value is passed in r0 register. |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 443 | // When leaving generated code after success, the receiver_reg and name_reg |
| 444 | // may be clobbered. Upon branch to miss_label, the receiver and name |
| 445 | // registers have their original values. |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 446 | void StubCompiler::GenerateStoreTransition(MacroAssembler* masm, |
| 447 | Handle<JSObject> object, |
| 448 | LookupResult* lookup, |
| 449 | Handle<Map> transition, |
| 450 | Handle<Name> name, |
| 451 | Register receiver_reg, |
| 452 | Register name_reg, |
| 453 | Register value_reg, |
| 454 | Register scratch1, |
| 455 | Register scratch2, |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 456 | Register scratch3, |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 457 | Label* miss_label, |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 458 | Label* miss_restore_name, |
| 459 | Label* slow) { |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 460 | // r0 : value |
| 461 | Label exit; |
| 462 | |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 463 | // Check that the map of the object hasn't changed. |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 464 | __ CheckMap(receiver_reg, scratch1, Handle<Map>(object->map()), miss_label, |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame^] | 465 | DO_SMI_CHECK); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 466 | |
| 467 | // Perform global security token check if needed. |
| 468 | if (object->IsJSGlobalProxy()) { |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 469 | __ CheckAccessGlobalProxy(receiver_reg, scratch1, miss_label); |
| 470 | } |
| 471 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 472 | int descriptor = transition->LastAdded(); |
| 473 | DescriptorArray* descriptors = transition->instance_descriptors(); |
| 474 | PropertyDetails details = descriptors->GetDetails(descriptor); |
| 475 | Representation representation = details.representation(); |
| 476 | ASSERT(!representation.IsNone()); |
| 477 | |
| 478 | // Ensure no transitions to deprecated maps are followed. |
| 479 | __ CheckMapDeprecated(transition, scratch1, miss_label); |
| 480 | |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 481 | // Check that we are allowed to write this. |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 482 | if (object->GetPrototype()->IsJSObject()) { |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 483 | JSObject* holder; |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 484 | // holder == object indicates that no property was found. |
| 485 | if (lookup->holder() != *object) { |
| 486 | holder = lookup->holder(); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 487 | } else { |
| 488 | // Find the top object. |
| 489 | holder = *object; |
| 490 | do { |
| 491 | holder = JSObject::cast(holder->GetPrototype()); |
| 492 | } while (holder->GetPrototype()->IsJSObject()); |
| 493 | } |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 494 | Register holder_reg = CheckPrototypes( |
| 495 | object, receiver_reg, Handle<JSObject>(holder), name_reg, |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 496 | scratch1, scratch2, name, miss_restore_name, SKIP_RECEIVER); |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 497 | // If no property was found, and the holder (the last object in the |
| 498 | // prototype chain) is in slow mode, we need to do a negative lookup on the |
| 499 | // holder. |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 500 | if (lookup->holder() == *object) { |
| 501 | if (holder->IsJSGlobalObject()) { |
| 502 | GenerateCheckPropertyCell( |
| 503 | masm, |
| 504 | Handle<GlobalObject>(GlobalObject::cast(holder)), |
| 505 | name, |
| 506 | scratch1, |
| 507 | miss_restore_name); |
| 508 | } else if (!holder->HasFastProperties() && !holder->IsJSGlobalProxy()) { |
| 509 | GenerateDictionaryNegativeLookup( |
| 510 | masm, miss_restore_name, holder_reg, name, scratch1, scratch2); |
| 511 | } |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 512 | } |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 513 | } |
| 514 | |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 515 | Register storage_reg = name_reg; |
| 516 | |
| 517 | if (FLAG_track_fields && representation.IsSmi()) { |
| 518 | __ JumpIfNotSmi(value_reg, miss_restore_name); |
ulan@chromium.org | 906e2fb | 2013-05-14 08:14:38 +0000 | [diff] [blame] | 519 | } else if (FLAG_track_heap_object_fields && representation.IsHeapObject()) { |
| 520 | __ JumpIfSmi(value_reg, miss_restore_name); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 521 | } else if (FLAG_track_double_fields && representation.IsDouble()) { |
| 522 | Label do_store, heap_number; |
| 523 | __ LoadRoot(scratch3, Heap::kHeapNumberMapRootIndex); |
| 524 | __ AllocateHeapNumber(storage_reg, scratch1, scratch2, scratch3, slow); |
| 525 | |
| 526 | __ JumpIfNotSmi(value_reg, &heap_number); |
| 527 | __ SmiUntag(scratch1, value_reg); |
| 528 | __ vmov(s0, scratch1); |
| 529 | __ vcvt_f64_s32(d0, s0); |
| 530 | __ jmp(&do_store); |
| 531 | |
| 532 | __ bind(&heap_number); |
| 533 | __ CheckMap(value_reg, scratch1, Heap::kHeapNumberMapRootIndex, |
| 534 | miss_restore_name, DONT_DO_SMI_CHECK); |
| 535 | __ vldr(d0, FieldMemOperand(value_reg, HeapNumber::kValueOffset)); |
| 536 | |
| 537 | __ bind(&do_store); |
| 538 | __ vstr(d0, FieldMemOperand(storage_reg, HeapNumber::kValueOffset)); |
| 539 | } |
| 540 | |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 541 | // Stub never generated for non-global objects that require access |
| 542 | // checks. |
| 543 | ASSERT(object->IsJSGlobalProxy() || !object->IsAccessCheckNeeded()); |
| 544 | |
| 545 | // Perform map transition for the receiver if necessary. |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 546 | if (object->map()->unused_property_fields() == 0) { |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 547 | // The properties must be extended before we can store the value. |
ager@chromium.org | 3291210 | 2009-01-16 10:38:43 +0000 | [diff] [blame] | 548 | // We jump to a runtime call that extends the properties array. |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 549 | __ push(receiver_reg); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 550 | __ mov(r2, Operand(transition)); |
lrn@chromium.org | c34f580 | 2010-04-28 12:53:43 +0000 | [diff] [blame] | 551 | __ Push(r2, r0); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 552 | __ TailCallExternalReference( |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 553 | ExternalReference(IC_Utility(IC::kSharedStoreIC_ExtendStorage), |
| 554 | masm->isolate()), |
| 555 | 3, |
| 556 | 1); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 557 | return; |
| 558 | } |
| 559 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 560 | // Update the map of the object. |
| 561 | __ mov(scratch1, Operand(transition)); |
| 562 | __ str(scratch1, FieldMemOperand(receiver_reg, HeapObject::kMapOffset)); |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 563 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 564 | // Update the write barrier for the map field and pass the now unused |
| 565 | // name_reg as scratch register. |
| 566 | __ RecordWriteField(receiver_reg, |
| 567 | HeapObject::kMapOffset, |
| 568 | scratch1, |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 569 | scratch2, |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 570 | kLRHasNotBeenSaved, |
| 571 | kDontSaveFPRegs, |
| 572 | OMIT_REMEMBERED_SET, |
| 573 | OMIT_SMI_CHECK); |
| 574 | |
| 575 | int index = transition->instance_descriptors()->GetFieldIndex( |
| 576 | transition->LastAdded()); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 577 | |
| 578 | // Adjust for the number of properties stored in the object. Even in the |
| 579 | // face of a transition we can use the old map here because the size of the |
| 580 | // object and the number of in-object properties is not going to change. |
| 581 | index -= object->map()->inobject_properties(); |
| 582 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 583 | // TODO(verwaest): Share this code as a code stub. |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame^] | 584 | SmiCheck smi_check = representation.IsTagged() |
| 585 | ? INLINE_SMI_CHECK : OMIT_SMI_CHECK; |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 586 | if (index < 0) { |
| 587 | // Set the property straight into the object. |
| 588 | int offset = object->map()->instance_size() + (index * kPointerSize); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 589 | if (FLAG_track_double_fields && representation.IsDouble()) { |
| 590 | __ str(storage_reg, FieldMemOperand(receiver_reg, offset)); |
| 591 | } else { |
| 592 | __ str(value_reg, FieldMemOperand(receiver_reg, offset)); |
| 593 | } |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 594 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 595 | if (!FLAG_track_fields || !representation.IsSmi()) { |
| 596 | // Skip updating write barrier if storing a smi. |
| 597 | __ JumpIfSmi(value_reg, &exit); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 598 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 599 | // Update the write barrier for the array address. |
| 600 | // Pass the now unused name_reg as a scratch register. |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 601 | if (!FLAG_track_double_fields || !representation.IsDouble()) { |
| 602 | __ mov(name_reg, value_reg); |
| 603 | } else { |
| 604 | ASSERT(storage_reg.is(name_reg)); |
| 605 | } |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 606 | __ RecordWriteField(receiver_reg, |
| 607 | offset, |
| 608 | name_reg, |
| 609 | scratch1, |
| 610 | kLRHasNotBeenSaved, |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame^] | 611 | kDontSaveFPRegs, |
| 612 | EMIT_REMEMBERED_SET, |
| 613 | smi_check); |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 614 | } |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 615 | } else { |
| 616 | // Write to the properties array. |
| 617 | int offset = index * kPointerSize + FixedArray::kHeaderSize; |
| 618 | // Get the properties array |
| 619 | __ ldr(scratch1, |
| 620 | FieldMemOperand(receiver_reg, JSObject::kPropertiesOffset)); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 621 | if (FLAG_track_double_fields && representation.IsDouble()) { |
| 622 | __ str(storage_reg, FieldMemOperand(scratch1, offset)); |
| 623 | } else { |
| 624 | __ str(value_reg, FieldMemOperand(scratch1, offset)); |
| 625 | } |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 626 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 627 | if (!FLAG_track_fields || !representation.IsSmi()) { |
| 628 | // Skip updating write barrier if storing a smi. |
| 629 | __ JumpIfSmi(value_reg, &exit); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 630 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 631 | // Update the write barrier for the array address. |
| 632 | // Ok to clobber receiver_reg and name_reg, since we return. |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 633 | if (!FLAG_track_double_fields || !representation.IsDouble()) { |
| 634 | __ mov(name_reg, value_reg); |
| 635 | } else { |
| 636 | ASSERT(storage_reg.is(name_reg)); |
| 637 | } |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 638 | __ RecordWriteField(scratch1, |
| 639 | offset, |
| 640 | name_reg, |
| 641 | receiver_reg, |
| 642 | kLRHasNotBeenSaved, |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame^] | 643 | kDontSaveFPRegs, |
| 644 | EMIT_REMEMBERED_SET, |
| 645 | smi_check); |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 646 | } |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 647 | } |
| 648 | |
| 649 | // Return the value (register r0). |
| 650 | ASSERT(value_reg.is(r0)); |
| 651 | __ bind(&exit); |
| 652 | __ Ret(); |
| 653 | } |
| 654 | |
| 655 | |
| 656 | // Generate StoreField code, value is passed in r0 register. |
| 657 | // When leaving generated code after success, the receiver_reg and name_reg |
| 658 | // may be clobbered. Upon branch to miss_label, the receiver and name |
| 659 | // registers have their original values. |
| 660 | void StubCompiler::GenerateStoreField(MacroAssembler* masm, |
| 661 | Handle<JSObject> object, |
| 662 | LookupResult* lookup, |
| 663 | Register receiver_reg, |
| 664 | Register name_reg, |
| 665 | Register value_reg, |
| 666 | Register scratch1, |
| 667 | Register scratch2, |
| 668 | Label* miss_label) { |
| 669 | // r0 : value |
| 670 | Label exit; |
| 671 | |
| 672 | // Check that the map of the object hasn't changed. |
| 673 | __ CheckMap(receiver_reg, scratch1, Handle<Map>(object->map()), miss_label, |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame^] | 674 | DO_SMI_CHECK); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 675 | |
| 676 | // Perform global security token check if needed. |
| 677 | if (object->IsJSGlobalProxy()) { |
| 678 | __ CheckAccessGlobalProxy(receiver_reg, scratch1, miss_label); |
| 679 | } |
| 680 | |
| 681 | // Stub never generated for non-global objects that require access |
| 682 | // checks. |
| 683 | ASSERT(object->IsJSGlobalProxy() || !object->IsAccessCheckNeeded()); |
| 684 | |
| 685 | int index = lookup->GetFieldIndex().field_index(); |
| 686 | |
| 687 | // Adjust for the number of properties stored in the object. Even in the |
| 688 | // face of a transition we can use the old map here because the size of the |
| 689 | // object and the number of in-object properties is not going to change. |
| 690 | index -= object->map()->inobject_properties(); |
| 691 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 692 | Representation representation = lookup->representation(); |
| 693 | ASSERT(!representation.IsNone()); |
| 694 | if (FLAG_track_fields && representation.IsSmi()) { |
| 695 | __ JumpIfNotSmi(value_reg, miss_label); |
ulan@chromium.org | 906e2fb | 2013-05-14 08:14:38 +0000 | [diff] [blame] | 696 | } else if (FLAG_track_heap_object_fields && representation.IsHeapObject()) { |
| 697 | __ JumpIfSmi(value_reg, miss_label); |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 698 | } else if (FLAG_track_double_fields && representation.IsDouble()) { |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 699 | // Load the double storage. |
| 700 | if (index < 0) { |
| 701 | int offset = object->map()->instance_size() + (index * kPointerSize); |
| 702 | __ ldr(scratch1, FieldMemOperand(receiver_reg, offset)); |
| 703 | } else { |
| 704 | __ ldr(scratch1, |
| 705 | FieldMemOperand(receiver_reg, JSObject::kPropertiesOffset)); |
| 706 | int offset = index * kPointerSize + FixedArray::kHeaderSize; |
| 707 | __ ldr(scratch1, FieldMemOperand(scratch1, offset)); |
| 708 | } |
| 709 | |
| 710 | // Store the value into the storage. |
| 711 | Label do_store, heap_number; |
| 712 | __ JumpIfNotSmi(value_reg, &heap_number); |
| 713 | __ SmiUntag(scratch2, value_reg); |
| 714 | __ vmov(s0, scratch2); |
| 715 | __ vcvt_f64_s32(d0, s0); |
| 716 | __ jmp(&do_store); |
| 717 | |
| 718 | __ bind(&heap_number); |
| 719 | __ CheckMap(value_reg, scratch2, Heap::kHeapNumberMapRootIndex, |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 720 | miss_label, DONT_DO_SMI_CHECK); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 721 | __ vldr(d0, FieldMemOperand(value_reg, HeapNumber::kValueOffset)); |
| 722 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 723 | __ bind(&do_store); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 724 | __ vstr(d0, FieldMemOperand(scratch1, HeapNumber::kValueOffset)); |
| 725 | // Return the value (register r0). |
| 726 | ASSERT(value_reg.is(r0)); |
| 727 | __ Ret(); |
| 728 | return; |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 729 | } |
| 730 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 731 | // TODO(verwaest): Share this code as a code stub. |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame^] | 732 | SmiCheck smi_check = representation.IsTagged() |
| 733 | ? INLINE_SMI_CHECK : OMIT_SMI_CHECK; |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 734 | if (index < 0) { |
| 735 | // Set the property straight into the object. |
| 736 | int offset = object->map()->instance_size() + (index * kPointerSize); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 737 | __ str(value_reg, FieldMemOperand(receiver_reg, offset)); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 738 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 739 | if (!FLAG_track_fields || !representation.IsSmi()) { |
| 740 | // Skip updating write barrier if storing a smi. |
| 741 | __ JumpIfSmi(value_reg, &exit); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 742 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 743 | // Update the write barrier for the array address. |
| 744 | // Pass the now unused name_reg as a scratch register. |
| 745 | __ mov(name_reg, value_reg); |
| 746 | __ RecordWriteField(receiver_reg, |
| 747 | offset, |
| 748 | name_reg, |
| 749 | scratch1, |
| 750 | kLRHasNotBeenSaved, |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame^] | 751 | kDontSaveFPRegs, |
| 752 | EMIT_REMEMBERED_SET, |
| 753 | smi_check); |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 754 | } |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 755 | } else { |
| 756 | // Write to the properties array. |
kasperl@chromium.org | e959c18 | 2009-07-27 08:59:04 +0000 | [diff] [blame] | 757 | int offset = index * kPointerSize + FixedArray::kHeaderSize; |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 758 | // Get the properties array |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 759 | __ ldr(scratch1, |
| 760 | FieldMemOperand(receiver_reg, JSObject::kPropertiesOffset)); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 761 | __ str(value_reg, FieldMemOperand(scratch1, offset)); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 762 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 763 | if (!FLAG_track_fields || !representation.IsSmi()) { |
| 764 | // Skip updating write barrier if storing a smi. |
| 765 | __ JumpIfSmi(value_reg, &exit); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 766 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 767 | // Update the write barrier for the array address. |
| 768 | // Ok to clobber receiver_reg and name_reg, since we return. |
| 769 | __ mov(name_reg, value_reg); |
| 770 | __ RecordWriteField(scratch1, |
| 771 | offset, |
| 772 | name_reg, |
| 773 | receiver_reg, |
| 774 | kLRHasNotBeenSaved, |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame^] | 775 | kDontSaveFPRegs, |
| 776 | EMIT_REMEMBERED_SET, |
| 777 | smi_check); |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 778 | } |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 779 | } |
| 780 | |
| 781 | // Return the value (register r0). |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 782 | ASSERT(value_reg.is(r0)); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 783 | __ bind(&exit); |
| 784 | __ Ret(); |
| 785 | } |
| 786 | |
| 787 | |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 788 | void BaseStoreStubCompiler::GenerateRestoreName(MacroAssembler* masm, |
| 789 | Label* label, |
| 790 | Handle<Name> name) { |
| 791 | if (!label->is_unused()) { |
| 792 | __ bind(label); |
| 793 | __ mov(this->name(), Operand(name)); |
| 794 | } |
mvstanton@chromium.org | d16d853 | 2013-01-25 13:29:10 +0000 | [diff] [blame] | 795 | } |
| 796 | |
| 797 | |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 798 | static void GenerateCallFunction(MacroAssembler* masm, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 799 | Handle<Object> object, |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 800 | const ParameterCount& arguments, |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 801 | Label* miss, |
| 802 | Code::ExtraICState extra_ic_state) { |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 803 | // ----------- S t a t e ------------- |
| 804 | // -- r0: receiver |
| 805 | // -- r1: function to call |
| 806 | // ----------------------------------- |
| 807 | |
| 808 | // Check that the function really is a function. |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 809 | __ JumpIfSmi(r1, miss); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 810 | __ CompareObjectType(r1, r3, r3, JS_FUNCTION_TYPE); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 811 | __ b(ne, miss); |
| 812 | |
| 813 | // Patch the receiver on the stack with the global proxy if |
| 814 | // necessary. |
| 815 | if (object->IsGlobalObject()) { |
| 816 | __ ldr(r3, FieldMemOperand(r0, GlobalObject::kGlobalReceiverOffset)); |
| 817 | __ str(r3, MemOperand(sp, arguments.immediate() * kPointerSize)); |
| 818 | } |
| 819 | |
| 820 | // Invoke the function. |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 821 | CallKind call_kind = CallICBase::Contextual::decode(extra_ic_state) |
| 822 | ? CALL_AS_FUNCTION |
| 823 | : CALL_AS_METHOD; |
| 824 | __ InvokeFunction(r1, arguments, JUMP_FUNCTION, NullCallWrapper(), call_kind); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 825 | } |
| 826 | |
| 827 | |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 828 | static void PushInterceptorArguments(MacroAssembler* masm, |
| 829 | Register receiver, |
| 830 | Register holder, |
| 831 | Register name, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 832 | Handle<JSObject> holder_obj) { |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 833 | __ push(name); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 834 | Handle<InterceptorInfo> interceptor(holder_obj->GetNamedInterceptor()); |
| 835 | ASSERT(!masm->isolate()->heap()->InNewSpace(*interceptor)); |
ager@chromium.org | b26c50a | 2010-03-26 09:27:16 +0000 | [diff] [blame] | 836 | Register scratch = name; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 837 | __ mov(scratch, Operand(interceptor)); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 838 | __ push(scratch); |
ager@chromium.org | b26c50a | 2010-03-26 09:27:16 +0000 | [diff] [blame] | 839 | __ push(receiver); |
| 840 | __ push(holder); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 841 | __ ldr(scratch, FieldMemOperand(scratch, InterceptorInfo::kDataOffset)); |
| 842 | __ push(scratch); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 843 | __ mov(scratch, Operand(ExternalReference::isolate_address(masm->isolate()))); |
jkummerow@chromium.org | 28faa98 | 2012-04-13 09:58:30 +0000 | [diff] [blame] | 844 | __ push(scratch); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 845 | } |
| 846 | |
| 847 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 848 | static void CompileCallLoadPropertyWithInterceptor( |
| 849 | MacroAssembler* masm, |
| 850 | Register receiver, |
| 851 | Register holder, |
| 852 | Register name, |
| 853 | Handle<JSObject> holder_obj) { |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 854 | PushInterceptorArguments(masm, receiver, holder, name, holder_obj); |
| 855 | |
| 856 | ExternalReference ref = |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 857 | ExternalReference(IC_Utility(IC::kLoadPropertyWithInterceptorOnly), |
| 858 | masm->isolate()); |
jkummerow@chromium.org | 28faa98 | 2012-04-13 09:58:30 +0000 | [diff] [blame] | 859 | __ mov(r0, Operand(6)); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 860 | __ mov(r1, Operand(ref)); |
| 861 | |
| 862 | CEntryStub stub(1); |
| 863 | __ CallStub(&stub); |
| 864 | } |
| 865 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 866 | |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 867 | static const int kFastApiCallArguments = FunctionCallbackArguments::kArgsLength; |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 868 | |
jkummerow@chromium.org | 28faa98 | 2012-04-13 09:58:30 +0000 | [diff] [blame] | 869 | // Reserves space for the extra arguments to API function in the |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 870 | // caller's frame. |
| 871 | // |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 872 | // These arguments are set by CheckPrototypes and GenerateFastApiDirectCall. |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 873 | static void ReserveSpaceForFastApiCall(MacroAssembler* masm, |
| 874 | Register scratch) { |
| 875 | __ mov(scratch, Operand(Smi::FromInt(0))); |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 876 | for (int i = 0; i < kFastApiCallArguments; i++) { |
| 877 | __ push(scratch); |
| 878 | } |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 879 | } |
| 880 | |
| 881 | |
| 882 | // Undoes the effects of ReserveSpaceForFastApiCall. |
| 883 | static void FreeSpaceForFastApiCall(MacroAssembler* masm) { |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 884 | __ Drop(kFastApiCallArguments); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 885 | } |
| 886 | |
| 887 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 888 | static void GenerateFastApiDirectCall(MacroAssembler* masm, |
| 889 | const CallOptimization& optimization, |
| 890 | int argc) { |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 891 | // ----------- S t a t e ------------- |
| 892 | // -- sp[0] : holder (set by CheckPrototypes) |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 893 | // -- sp[4] : callee JS function |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 894 | // -- sp[8] : call data |
jkummerow@chromium.org | 28faa98 | 2012-04-13 09:58:30 +0000 | [diff] [blame] | 895 | // -- sp[12] : isolate |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 896 | // -- sp[16] : ReturnValue |
| 897 | // -- sp[20] : last JS argument |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 898 | // -- ... |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 899 | // -- sp[(argc + 4) * 4] : first JS argument |
| 900 | // -- sp[(argc + 5) * 4] : receiver |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 901 | // ----------------------------------- |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 902 | // Get the function and setup the context. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 903 | Handle<JSFunction> function = optimization.constant_function(); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 904 | __ LoadHeapObject(r5, function); |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 905 | __ ldr(cp, FieldMemOperand(r5, JSFunction::kContextOffset)); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 906 | |
jkummerow@chromium.org | 28faa98 | 2012-04-13 09:58:30 +0000 | [diff] [blame] | 907 | // Pass the additional arguments. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 908 | Handle<CallHandlerInfo> api_call_info = optimization.api_call_info(); |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 909 | Handle<Object> call_data(api_call_info->data(), masm->isolate()); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 910 | if (masm->isolate()->heap()->InNewSpace(*call_data)) { |
| 911 | __ Move(r0, api_call_info); |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 912 | __ ldr(r6, FieldMemOperand(r0, CallHandlerInfo::kDataOffset)); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 913 | } else { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 914 | __ Move(r6, call_data); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 915 | } |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 916 | __ mov(r7, Operand(ExternalReference::isolate_address(masm->isolate()))); |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 917 | // Store JS function, call data, isolate and ReturnValue. |
jkummerow@chromium.org | 28faa98 | 2012-04-13 09:58:30 +0000 | [diff] [blame] | 918 | __ stm(ib, sp, r5.bit() | r6.bit() | r7.bit()); |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 919 | __ LoadRoot(r5, Heap::kUndefinedValueRootIndex); |
| 920 | __ str(r5, MemOperand(sp, 4 * kPointerSize)); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 921 | |
jkummerow@chromium.org | 28faa98 | 2012-04-13 09:58:30 +0000 | [diff] [blame] | 922 | // Prepare arguments. |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 923 | __ add(r2, sp, Operand(4 * kPointerSize)); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 924 | |
jkummerow@chromium.org | 28faa98 | 2012-04-13 09:58:30 +0000 | [diff] [blame] | 925 | // Allocate the v8::Arguments structure in the arguments' space since |
| 926 | // it's not controlled by GC. |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 927 | const int kApiStackSpace = 4; |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 928 | |
| 929 | FrameScope frame_scope(masm, StackFrame::MANUAL); |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 930 | __ EnterExitFrame(false, kApiStackSpace); |
| 931 | |
| 932 | // r0 = v8::Arguments& |
| 933 | // Arguments is after the return address. |
| 934 | __ add(r0, sp, Operand(1 * kPointerSize)); |
jkummerow@chromium.org | 28faa98 | 2012-04-13 09:58:30 +0000 | [diff] [blame] | 935 | // v8::Arguments::implicit_args_ |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 936 | __ str(r2, MemOperand(r0, 0 * kPointerSize)); |
jkummerow@chromium.org | 28faa98 | 2012-04-13 09:58:30 +0000 | [diff] [blame] | 937 | // v8::Arguments::values_ |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 938 | __ add(ip, r2, Operand(argc * kPointerSize)); |
| 939 | __ str(ip, MemOperand(r0, 1 * kPointerSize)); |
| 940 | // v8::Arguments::length_ = argc |
| 941 | __ mov(ip, Operand(argc)); |
| 942 | __ str(ip, MemOperand(r0, 2 * kPointerSize)); |
| 943 | // v8::Arguments::is_construct_call = 0 |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 944 | __ mov(ip, Operand::Zero()); |
ricow@chromium.org | 83aa549 | 2011-02-07 12:42:56 +0000 | [diff] [blame] | 945 | __ str(ip, MemOperand(r0, 3 * kPointerSize)); |
| 946 | |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 947 | const int kStackUnwindSpace = argc + kFastApiCallArguments + 1; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 948 | Address function_address = v8::ToCData<Address>(api_call_info->callback()); |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 949 | bool returns_handle = |
| 950 | !CallbackTable::ReturnsVoid(masm->isolate(), function_address); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 951 | ApiFunction fun(function_address); |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 952 | ExternalReference::Type type = |
| 953 | returns_handle ? |
| 954 | ExternalReference::DIRECT_API_CALL : |
| 955 | ExternalReference::DIRECT_API_CALL_NEW; |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 956 | ExternalReference ref = ExternalReference(&fun, |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 957 | type, |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 958 | masm->isolate()); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 959 | AllowExternalCallThatCantCauseGC scope(masm); |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 960 | __ CallApiFunctionAndReturn(ref, |
| 961 | kStackUnwindSpace, |
| 962 | returns_handle, |
| 963 | kFastApiCallArguments + 1); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 964 | } |
| 965 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 966 | |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 967 | class CallInterceptorCompiler BASE_EMBEDDED { |
| 968 | public: |
| 969 | CallInterceptorCompiler(StubCompiler* stub_compiler, |
| 970 | const ParameterCount& arguments, |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 971 | Register name, |
| 972 | Code::ExtraICState extra_ic_state) |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 973 | : stub_compiler_(stub_compiler), |
| 974 | arguments_(arguments), |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 975 | name_(name), |
| 976 | extra_ic_state_(extra_ic_state) {} |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 977 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 978 | void Compile(MacroAssembler* masm, |
| 979 | Handle<JSObject> object, |
| 980 | Handle<JSObject> holder, |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 981 | Handle<Name> name, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 982 | LookupResult* lookup, |
| 983 | Register receiver, |
| 984 | Register scratch1, |
| 985 | Register scratch2, |
| 986 | Register scratch3, |
| 987 | Label* miss) { |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 988 | ASSERT(holder->HasNamedInterceptor()); |
| 989 | ASSERT(!holder->GetNamedInterceptor()->getter()->IsUndefined()); |
| 990 | |
| 991 | // Check that the receiver isn't a smi. |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 992 | __ JumpIfSmi(receiver, miss); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 993 | CallOptimization optimization(lookup); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 994 | if (optimization.is_constant_call()) { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 995 | CompileCacheable(masm, object, receiver, scratch1, scratch2, scratch3, |
| 996 | holder, lookup, name, optimization, miss); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 997 | } else { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 998 | CompileRegular(masm, object, receiver, scratch1, scratch2, scratch3, |
| 999 | name, holder, miss); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 1000 | } |
| 1001 | } |
| 1002 | |
| 1003 | private: |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1004 | void CompileCacheable(MacroAssembler* masm, |
| 1005 | Handle<JSObject> object, |
| 1006 | Register receiver, |
| 1007 | Register scratch1, |
| 1008 | Register scratch2, |
| 1009 | Register scratch3, |
| 1010 | Handle<JSObject> interceptor_holder, |
| 1011 | LookupResult* lookup, |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1012 | Handle<Name> name, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1013 | const CallOptimization& optimization, |
| 1014 | Label* miss_label) { |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 1015 | ASSERT(optimization.is_constant_call()); |
| 1016 | ASSERT(!lookup->holder()->IsGlobalObject()); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1017 | Counters* counters = masm->isolate()->counters(); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 1018 | int depth1 = kInvalidProtoDepth; |
| 1019 | int depth2 = kInvalidProtoDepth; |
| 1020 | bool can_do_fast_api_call = false; |
| 1021 | if (optimization.is_simple_api_call() && |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1022 | !lookup->holder()->IsGlobalObject()) { |
| 1023 | depth1 = optimization.GetPrototypeDepthOfExpectedType( |
| 1024 | object, interceptor_holder); |
| 1025 | if (depth1 == kInvalidProtoDepth) { |
| 1026 | depth2 = optimization.GetPrototypeDepthOfExpectedType( |
| 1027 | interceptor_holder, Handle<JSObject>(lookup->holder())); |
| 1028 | } |
| 1029 | can_do_fast_api_call = |
| 1030 | depth1 != kInvalidProtoDepth || depth2 != kInvalidProtoDepth; |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 1031 | } |
| 1032 | |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1033 | __ IncrementCounter(counters->call_const_interceptor(), 1, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1034 | scratch1, scratch2); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 1035 | |
| 1036 | if (can_do_fast_api_call) { |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1037 | __ IncrementCounter(counters->call_const_interceptor_fast_api(), 1, |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 1038 | scratch1, scratch2); |
| 1039 | ReserveSpaceForFastApiCall(masm, scratch1); |
| 1040 | } |
| 1041 | |
kmillikin@chromium.org | 9155e25 | 2010-05-26 13:27:57 +0000 | [diff] [blame] | 1042 | // Check that the maps from receiver to interceptor's holder |
| 1043 | // haven't changed and thus we can invoke interceptor. |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 1044 | Label miss_cleanup; |
| 1045 | Label* miss = can_do_fast_api_call ? &miss_cleanup : miss_label; |
| 1046 | Register holder = |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1047 | stub_compiler_->CheckPrototypes(object, receiver, interceptor_holder, |
| 1048 | scratch1, scratch2, scratch3, |
| 1049 | name, depth1, miss); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 1050 | |
kmillikin@chromium.org | 9155e25 | 2010-05-26 13:27:57 +0000 | [diff] [blame] | 1051 | // Invoke an interceptor and if it provides a value, |
| 1052 | // branch to |regular_invoke|. |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 1053 | Label regular_invoke; |
kmillikin@chromium.org | 9155e25 | 2010-05-26 13:27:57 +0000 | [diff] [blame] | 1054 | LoadWithInterceptor(masm, receiver, holder, interceptor_holder, scratch2, |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 1055 | ®ular_invoke); |
| 1056 | |
kmillikin@chromium.org | 9155e25 | 2010-05-26 13:27:57 +0000 | [diff] [blame] | 1057 | // Interceptor returned nothing for this property. Try to use cached |
| 1058 | // constant function. |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 1059 | |
kmillikin@chromium.org | 9155e25 | 2010-05-26 13:27:57 +0000 | [diff] [blame] | 1060 | // Check that the maps from interceptor's holder to constant function's |
| 1061 | // 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] | 1062 | if (*interceptor_holder != lookup->holder()) { |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 1063 | stub_compiler_->CheckPrototypes(interceptor_holder, receiver, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1064 | Handle<JSObject>(lookup->holder()), |
| 1065 | scratch1, scratch2, scratch3, |
| 1066 | name, depth2, miss); |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 1067 | } else { |
| 1068 | // CheckPrototypes has a side effect of fetching a 'holder' |
| 1069 | // for API (object which is instanceof for the signature). It's |
| 1070 | // safe to omit it here, as if present, it should be fetched |
| 1071 | // by the previous CheckPrototypes. |
| 1072 | ASSERT(depth2 == kInvalidProtoDepth); |
| 1073 | } |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 1074 | |
kmillikin@chromium.org | 9155e25 | 2010-05-26 13:27:57 +0000 | [diff] [blame] | 1075 | // Invoke function. |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 1076 | if (can_do_fast_api_call) { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1077 | GenerateFastApiDirectCall(masm, optimization, arguments_.immediate()); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 1078 | } else { |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 1079 | CallKind call_kind = CallICBase::Contextual::decode(extra_ic_state_) |
| 1080 | ? CALL_AS_FUNCTION |
| 1081 | : CALL_AS_METHOD; |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 1082 | Handle<JSFunction> function = optimization.constant_function(); |
| 1083 | ParameterCount expected(function); |
| 1084 | __ InvokeFunction(function, expected, arguments_, |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 1085 | JUMP_FUNCTION, NullCallWrapper(), call_kind); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 1086 | } |
| 1087 | |
kmillikin@chromium.org | 9155e25 | 2010-05-26 13:27:57 +0000 | [diff] [blame] | 1088 | // Deferred code for fast API call case---clean preallocated space. |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 1089 | if (can_do_fast_api_call) { |
| 1090 | __ bind(&miss_cleanup); |
| 1091 | FreeSpaceForFastApiCall(masm); |
| 1092 | __ b(miss_label); |
| 1093 | } |
| 1094 | |
kmillikin@chromium.org | 9155e25 | 2010-05-26 13:27:57 +0000 | [diff] [blame] | 1095 | // Invoke a regular function. |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 1096 | __ bind(®ular_invoke); |
| 1097 | if (can_do_fast_api_call) { |
| 1098 | FreeSpaceForFastApiCall(masm); |
| 1099 | } |
| 1100 | } |
| 1101 | |
| 1102 | void CompileRegular(MacroAssembler* masm, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1103 | Handle<JSObject> object, |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 1104 | Register receiver, |
| 1105 | Register scratch1, |
| 1106 | Register scratch2, |
ager@chromium.org | 6a2b0aa | 2010-07-13 20:58:03 +0000 | [diff] [blame] | 1107 | Register scratch3, |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1108 | Handle<Name> name, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1109 | Handle<JSObject> interceptor_holder, |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 1110 | Label* miss_label) { |
| 1111 | Register holder = |
kmillikin@chromium.org | 9155e25 | 2010-05-26 13:27:57 +0000 | [diff] [blame] | 1112 | stub_compiler_->CheckPrototypes(object, receiver, interceptor_holder, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1113 | scratch1, scratch2, scratch3, |
| 1114 | name, miss_label); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 1115 | |
| 1116 | // Call a runtime function to load the interceptor property. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1117 | FrameScope scope(masm, StackFrame::INTERNAL); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 1118 | // Save the name_ register across the call. |
| 1119 | __ push(name_); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1120 | PushInterceptorArguments(masm, receiver, holder, name_, interceptor_holder); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 1121 | __ CallExternalReference( |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1122 | ExternalReference(IC_Utility(IC::kLoadPropertyWithInterceptorForCall), |
| 1123 | masm->isolate()), |
jkummerow@chromium.org | 28faa98 | 2012-04-13 09:58:30 +0000 | [diff] [blame] | 1124 | 6); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 1125 | // Restore the name_ register. |
| 1126 | __ pop(name_); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1127 | // Leave the internal frame. |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 1128 | } |
| 1129 | |
| 1130 | void LoadWithInterceptor(MacroAssembler* masm, |
| 1131 | Register receiver, |
| 1132 | Register holder, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1133 | Handle<JSObject> holder_obj, |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 1134 | Register scratch, |
| 1135 | Label* interceptor_succeeded) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1136 | { |
| 1137 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 1138 | __ Push(holder, name_); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1139 | CompileCallLoadPropertyWithInterceptor(masm, |
| 1140 | receiver, |
| 1141 | holder, |
| 1142 | name_, |
| 1143 | holder_obj); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1144 | __ pop(name_); // Restore the name. |
| 1145 | __ pop(receiver); // Restore the holder. |
| 1146 | } |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 1147 | // If interceptor returns no-result sentinel, call the constant function. |
| 1148 | __ LoadRoot(scratch, Heap::kNoInterceptorResultSentinelRootIndex); |
| 1149 | __ cmp(r0, scratch); |
| 1150 | __ b(ne, interceptor_succeeded); |
| 1151 | } |
| 1152 | |
| 1153 | StubCompiler* stub_compiler_; |
| 1154 | const ParameterCount& arguments_; |
| 1155 | Register name_; |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 1156 | Code::ExtraICState extra_ic_state_; |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 1157 | }; |
| 1158 | |
| 1159 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1160 | // Calls GenerateCheckPropertyCell for each global object in the prototype chain |
| 1161 | // from object to (but not including) holder. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1162 | static void GenerateCheckPropertyCells(MacroAssembler* masm, |
| 1163 | Handle<JSObject> object, |
| 1164 | Handle<JSObject> holder, |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1165 | Handle<Name> name, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1166 | Register scratch, |
| 1167 | Label* miss) { |
| 1168 | Handle<JSObject> current = object; |
| 1169 | while (!current.is_identical_to(holder)) { |
| 1170 | if (current->IsGlobalObject()) { |
| 1171 | GenerateCheckPropertyCell(masm, |
| 1172 | Handle<GlobalObject>::cast(current), |
| 1173 | name, |
| 1174 | scratch, |
| 1175 | miss); |
| 1176 | } |
| 1177 | current = Handle<JSObject>(JSObject::cast(current->GetPrototype())); |
| 1178 | } |
| 1179 | } |
| 1180 | |
| 1181 | |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 1182 | // Convert and store int passed in register ival to IEEE 754 single precision |
| 1183 | // floating point value at memory location (dst + 4 * wordoffset) |
| 1184 | // If VFP3 is available use it for conversion. |
| 1185 | static void StoreIntAsFloat(MacroAssembler* masm, |
| 1186 | Register dst, |
| 1187 | Register wordoffset, |
| 1188 | Register ival, |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 1189 | Register scratch1) { |
| 1190 | __ vmov(s0, ival); |
| 1191 | __ add(scratch1, dst, Operand(wordoffset, LSL, 2)); |
| 1192 | __ vcvt_f32_s32(s0, s0); |
| 1193 | __ vstr(s0, scratch1, 0); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 1194 | } |
| 1195 | |
| 1196 | |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 1197 | void StubCompiler::GenerateTailCall(MacroAssembler* masm, Handle<Code> code) { |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1198 | __ Jump(code, RelocInfo::CODE_TARGET); |
| 1199 | } |
| 1200 | |
| 1201 | |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 1202 | #undef __ |
| 1203 | #define __ ACCESS_MASM(masm()) |
| 1204 | |
| 1205 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1206 | Register StubCompiler::CheckPrototypes(Handle<JSObject> object, |
| 1207 | Register object_reg, |
| 1208 | Handle<JSObject> holder, |
| 1209 | Register holder_reg, |
| 1210 | Register scratch1, |
| 1211 | Register scratch2, |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1212 | Handle<Name> name, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1213 | int save_at_depth, |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1214 | Label* miss, |
| 1215 | PrototypeCheckType check) { |
| 1216 | Handle<JSObject> first = object; |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1217 | // Make sure there's no overlap between holder and object registers. |
| 1218 | ASSERT(!scratch1.is(object_reg) && !scratch1.is(holder_reg)); |
| 1219 | ASSERT(!scratch2.is(object_reg) && !scratch2.is(holder_reg) |
| 1220 | && !scratch2.is(scratch1)); |
| 1221 | |
| 1222 | // Keep track of the current object in register reg. |
| 1223 | Register reg = object_reg; |
| 1224 | int depth = 0; |
| 1225 | |
| 1226 | if (save_at_depth == depth) { |
| 1227 | __ str(reg, MemOperand(sp)); |
| 1228 | } |
| 1229 | |
| 1230 | // Check the maps in the prototype chain. |
| 1231 | // Traverse the prototype chain from the object and do map checks. |
| 1232 | Handle<JSObject> current = object; |
| 1233 | while (!current.is_identical_to(holder)) { |
| 1234 | ++depth; |
| 1235 | |
| 1236 | // Only global objects and objects that do not require access |
| 1237 | // checks are allowed in stubs. |
| 1238 | ASSERT(current->IsJSGlobalProxy() || !current->IsAccessCheckNeeded()); |
| 1239 | |
| 1240 | Handle<JSObject> prototype(JSObject::cast(current->GetPrototype())); |
| 1241 | if (!current->HasFastProperties() && |
| 1242 | !current->IsJSGlobalObject() && |
| 1243 | !current->IsJSGlobalProxy()) { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1244 | if (!name->IsUniqueName()) { |
| 1245 | ASSERT(name->IsString()); |
| 1246 | name = factory()->InternalizeString(Handle<String>::cast(name)); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1247 | } |
| 1248 | ASSERT(current->property_dictionary()->FindEntry(*name) == |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1249 | NameDictionary::kNotFound); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1250 | |
| 1251 | GenerateDictionaryNegativeLookup(masm(), miss, reg, name, |
| 1252 | scratch1, scratch2); |
| 1253 | |
| 1254 | __ ldr(scratch1, FieldMemOperand(reg, HeapObject::kMapOffset)); |
| 1255 | reg = holder_reg; // From now on the object will be in holder_reg. |
| 1256 | __ ldr(reg, FieldMemOperand(scratch1, Map::kPrototypeOffset)); |
| 1257 | } else { |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1258 | Register map_reg = scratch1; |
| 1259 | if (!current.is_identical_to(first) || check == CHECK_ALL_MAPS) { |
| 1260 | Handle<Map> current_map(current->map()); |
| 1261 | // CheckMap implicitly loads the map of |reg| into |map_reg|. |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame^] | 1262 | __ CheckMap(reg, map_reg, current_map, miss, DONT_DO_SMI_CHECK); |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1263 | } else { |
| 1264 | __ ldr(map_reg, FieldMemOperand(reg, HeapObject::kMapOffset)); |
| 1265 | } |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 1266 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1267 | // Check access rights to the global object. This has to happen after |
| 1268 | // the map check so that we know that the object is actually a global |
| 1269 | // object. |
| 1270 | if (current->IsJSGlobalProxy()) { |
| 1271 | __ CheckAccessGlobalProxy(reg, scratch2, miss); |
| 1272 | } |
| 1273 | reg = holder_reg; // From now on the object will be in holder_reg. |
| 1274 | |
| 1275 | if (heap()->InNewSpace(*prototype)) { |
| 1276 | // The prototype is in new space; we cannot store a reference to it |
| 1277 | // in the code. Load it from the map. |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1278 | __ ldr(reg, FieldMemOperand(map_reg, Map::kPrototypeOffset)); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1279 | } else { |
| 1280 | // The prototype is in old space; load it directly. |
| 1281 | __ mov(reg, Operand(prototype)); |
| 1282 | } |
| 1283 | } |
| 1284 | |
| 1285 | if (save_at_depth == depth) { |
| 1286 | __ str(reg, MemOperand(sp)); |
| 1287 | } |
| 1288 | |
| 1289 | // Go to the next object in the prototype chain. |
| 1290 | current = prototype; |
| 1291 | } |
| 1292 | |
| 1293 | // Log the check depth. |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 1294 | LOG(isolate(), IntEvent("check-maps-depth", depth + 1)); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1295 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1296 | if (!holder.is_identical_to(first) || check == CHECK_ALL_MAPS) { |
| 1297 | // Check the holder map. |
| 1298 | __ CheckMap(reg, scratch1, Handle<Map>(holder->map()), miss, |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame^] | 1299 | DONT_DO_SMI_CHECK); |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1300 | } |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1301 | |
| 1302 | // Perform security check for access to the global object. |
| 1303 | ASSERT(holder->IsJSGlobalProxy() || !holder->IsAccessCheckNeeded()); |
| 1304 | if (holder->IsJSGlobalProxy()) { |
| 1305 | __ CheckAccessGlobalProxy(reg, scratch1, miss); |
| 1306 | } |
| 1307 | |
| 1308 | // If we've skipped any global objects, it's not enough to verify that |
| 1309 | // their maps haven't changed. We also need to check that the property |
| 1310 | // cell for the property is still empty. |
| 1311 | GenerateCheckPropertyCells(masm(), object, holder, name, scratch1, miss); |
| 1312 | |
| 1313 | // Return the register containing the holder. |
| 1314 | return reg; |
| 1315 | } |
| 1316 | |
| 1317 | |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1318 | void BaseLoadStubCompiler::HandlerFrontendFooter(Label* success, |
| 1319 | Label* miss) { |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1320 | if (!miss->is_unused()) { |
| 1321 | __ b(success); |
| 1322 | __ bind(miss); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 1323 | TailCallBuiltin(masm(), MissBuiltin(kind())); |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1324 | } |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1325 | } |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1326 | |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1327 | |
| 1328 | Register BaseLoadStubCompiler::CallbackHandlerFrontend( |
| 1329 | Handle<JSObject> object, |
| 1330 | Register object_reg, |
| 1331 | Handle<JSObject> holder, |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1332 | Handle<Name> name, |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1333 | Label* success, |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1334 | Handle<ExecutableAccessorInfo> callback) { |
| 1335 | Label miss; |
| 1336 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1337 | Register reg = HandlerFrontendHeader(object, object_reg, holder, name, &miss); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1338 | |
| 1339 | if (!holder->HasFastProperties() && !holder->IsJSGlobalObject()) { |
| 1340 | ASSERT(!reg.is(scratch2())); |
| 1341 | ASSERT(!reg.is(scratch3())); |
| 1342 | ASSERT(!reg.is(scratch4())); |
| 1343 | |
| 1344 | // Load the properties dictionary. |
| 1345 | Register dictionary = scratch4(); |
| 1346 | __ ldr(dictionary, FieldMemOperand(reg, JSObject::kPropertiesOffset)); |
| 1347 | |
| 1348 | // Probe the dictionary. |
| 1349 | Label probe_done; |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1350 | NameDictionaryLookupStub::GeneratePositiveLookup(masm(), |
| 1351 | &miss, |
| 1352 | &probe_done, |
| 1353 | dictionary, |
| 1354 | this->name(), |
| 1355 | scratch2(), |
| 1356 | scratch3()); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1357 | __ bind(&probe_done); |
| 1358 | |
| 1359 | // If probing finds an entry in the dictionary, scratch3 contains the |
| 1360 | // pointer into the dictionary. Check that the value is the callback. |
| 1361 | Register pointer = scratch3(); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1362 | const int kElementsStartOffset = NameDictionary::kHeaderSize + |
| 1363 | NameDictionary::kElementsStartIndex * kPointerSize; |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1364 | const int kValueOffset = kElementsStartOffset + kPointerSize; |
| 1365 | __ ldr(scratch2(), FieldMemOperand(pointer, kValueOffset)); |
| 1366 | __ cmp(scratch2(), Operand(callback)); |
| 1367 | __ b(ne, &miss); |
| 1368 | } |
| 1369 | |
| 1370 | HandlerFrontendFooter(success, &miss); |
| 1371 | return reg; |
| 1372 | } |
| 1373 | |
| 1374 | |
| 1375 | void BaseLoadStubCompiler::NonexistentHandlerFrontend( |
| 1376 | Handle<JSObject> object, |
| 1377 | Handle<JSObject> last, |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1378 | Handle<Name> name, |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1379 | Label* success, |
| 1380 | Handle<GlobalObject> global) { |
| 1381 | Label miss; |
| 1382 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 1383 | HandlerFrontendHeader(object, receiver(), last, name, &miss); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1384 | |
| 1385 | // If the last object in the prototype chain is a global object, |
| 1386 | // check that the global property cell is empty. |
| 1387 | if (!global.is_null()) { |
| 1388 | GenerateCheckPropertyCell(masm(), global, name, scratch2(), &miss); |
| 1389 | } |
| 1390 | |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1391 | HandlerFrontendFooter(success, &miss); |
| 1392 | } |
| 1393 | |
| 1394 | |
| 1395 | void BaseLoadStubCompiler::GenerateLoadField(Register reg, |
| 1396 | Handle<JSObject> holder, |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 1397 | PropertyIndex field, |
| 1398 | Representation representation) { |
| 1399 | if (!reg.is(receiver())) __ mov(receiver(), reg); |
| 1400 | if (kind() == Code::LOAD_IC) { |
| 1401 | LoadFieldStub stub(field.is_inobject(holder), |
| 1402 | field.translate(holder), |
| 1403 | representation); |
| 1404 | GenerateTailCall(masm(), stub.GetCode(isolate())); |
| 1405 | } else { |
| 1406 | KeyedLoadFieldStub stub(field.is_inobject(holder), |
| 1407 | field.translate(holder), |
| 1408 | representation); |
| 1409 | GenerateTailCall(masm(), stub.GetCode(isolate())); |
| 1410 | } |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1411 | } |
| 1412 | |
| 1413 | |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1414 | void BaseLoadStubCompiler::GenerateLoadConstant(Handle<JSFunction> value) { |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1415 | // Return the constant value. |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 1416 | __ LoadHeapObject(r0, value); |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1417 | __ Ret(); |
| 1418 | } |
| 1419 | |
| 1420 | |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1421 | void BaseLoadStubCompiler::GenerateLoadCallback( |
| 1422 | Register reg, |
| 1423 | Handle<ExecutableAccessorInfo> callback) { |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 1424 | // Build AccessorInfo::args_ list on the stack and push property name below |
| 1425 | // the exit frame to make GC aware of them and store pointers to them. |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1426 | __ push(receiver()); |
| 1427 | __ mov(scratch2(), sp); // scratch2 = AccessorInfo::args_ |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1428 | if (heap()->InNewSpace(callback->data())) { |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1429 | __ Move(scratch3(), callback); |
| 1430 | __ ldr(scratch3(), FieldMemOperand(scratch3(), |
| 1431 | ExecutableAccessorInfo::kDataOffset)); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 1432 | } else { |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 1433 | __ Move(scratch3(), Handle<Object>(callback->data(), isolate())); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 1434 | } |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1435 | __ Push(reg, scratch3()); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 1436 | __ mov(scratch3(), |
| 1437 | Operand(ExternalReference::isolate_address(isolate()))); |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 1438 | __ LoadRoot(scratch4(), Heap::kUndefinedValueRootIndex); |
| 1439 | __ Push(scratch3(), scratch4(), name()); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1440 | __ mov(r0, sp); // r0 = Handle<Name> |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1441 | |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 1442 | const int kApiStackSpace = 1; |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1443 | FrameScope frame_scope(masm(), StackFrame::MANUAL); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 1444 | __ EnterExitFrame(false, kApiStackSpace); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1445 | |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 1446 | // 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] | 1447 | // scratch2 (internal::Object** args_) as the data. |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1448 | __ str(scratch2(), MemOperand(sp, 1 * kPointerSize)); |
vegorov@chromium.org | 5d6c1f5 | 2011-02-28 13:13:38 +0000 | [diff] [blame] | 1449 | __ add(r1, sp, Operand(1 * kPointerSize)); // r1 = AccessorInfo& |
| 1450 | |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 1451 | const int kStackUnwindSpace = kFastApiCallArguments + 1; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1452 | Address getter_address = v8::ToCData<Address>(callback->getter()); |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 1453 | bool returns_handle = |
| 1454 | !CallbackTable::ReturnsVoid(isolate(), getter_address); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1455 | ApiFunction fun(getter_address); |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 1456 | ExternalReference::Type type = |
| 1457 | returns_handle ? |
| 1458 | ExternalReference::DIRECT_GETTER_CALL : |
| 1459 | ExternalReference::DIRECT_GETTER_CALL_NEW; |
| 1460 | |
| 1461 | ExternalReference ref = ExternalReference(&fun, type, isolate()); |
| 1462 | __ CallApiFunctionAndReturn(ref, |
| 1463 | kStackUnwindSpace, |
| 1464 | returns_handle, |
| 1465 | 3); |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1466 | } |
| 1467 | |
| 1468 | |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1469 | void BaseLoadStubCompiler::GenerateLoadInterceptor( |
| 1470 | Register holder_reg, |
| 1471 | Handle<JSObject> object, |
| 1472 | Handle<JSObject> interceptor_holder, |
| 1473 | LookupResult* lookup, |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1474 | Handle<Name> name) { |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 1475 | ASSERT(interceptor_holder->HasNamedInterceptor()); |
| 1476 | ASSERT(!interceptor_holder->GetNamedInterceptor()->getter()->IsUndefined()); |
| 1477 | |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 1478 | // So far the most popular follow ups for interceptor loads are FIELD |
| 1479 | // and CALLBACKS, so inline only them, other cases may be added |
| 1480 | // later. |
| 1481 | bool compile_followup_inline = false; |
jkummerow@chromium.org | 05ed9dd | 2012-01-23 14:42:48 +0000 | [diff] [blame] | 1482 | if (lookup->IsFound() && lookup->IsCacheable()) { |
yangguo@chromium.org | de0db00 | 2012-06-22 13:44:28 +0000 | [diff] [blame] | 1483 | if (lookup->IsField()) { |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 1484 | compile_followup_inline = true; |
| 1485 | } else if (lookup->type() == CALLBACKS && |
hpayer@chromium.org | 7c3372b | 2013-02-13 17:26:04 +0000 | [diff] [blame] | 1486 | lookup->GetCallbackObject()->IsExecutableAccessorInfo()) { |
| 1487 | ExecutableAccessorInfo* callback = |
| 1488 | ExecutableAccessorInfo::cast(lookup->GetCallbackObject()); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 1489 | compile_followup_inline = callback->getter() != NULL && |
| 1490 | callback->IsCompatibleReceiver(*object); |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 1491 | } |
| 1492 | } |
| 1493 | |
| 1494 | if (compile_followup_inline) { |
| 1495 | // Compile the interceptor call, followed by inline code to load the |
| 1496 | // property from further up the prototype chain if the call fails. |
| 1497 | // Check that the maps haven't changed. |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1498 | ASSERT(holder_reg.is(receiver()) || holder_reg.is(scratch1())); |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 1499 | |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 1500 | // Preserve the receiver register explicitly whenever it is different from |
| 1501 | // the holder and it is needed should the interceptor return without any |
| 1502 | // result. The CALLBACKS case needs the receiver to be passed into C++ code, |
| 1503 | // the FIELD case might cause a miss during the prototype check. |
| 1504 | bool must_perfrom_prototype_check = *interceptor_holder != lookup->holder(); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1505 | bool must_preserve_receiver_reg = !receiver().is(holder_reg) && |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 1506 | (lookup->type() == CALLBACKS || must_perfrom_prototype_check); |
| 1507 | |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 1508 | // Save necessary data before invoking an interceptor. |
| 1509 | // Requires a frame to make GC aware of pushed pointers. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1510 | { |
| 1511 | FrameScope frame_scope(masm(), StackFrame::INTERNAL); |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 1512 | if (must_preserve_receiver_reg) { |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1513 | __ Push(receiver(), holder_reg, this->name()); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1514 | } else { |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1515 | __ Push(holder_reg, this->name()); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1516 | } |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1517 | // Invoke an interceptor. Note: map checks from receiver to |
| 1518 | // interceptor's holder has been compiled before (see a caller |
| 1519 | // of this method.) |
| 1520 | CompileCallLoadPropertyWithInterceptor(masm(), |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1521 | receiver(), |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1522 | holder_reg, |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1523 | this->name(), |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1524 | interceptor_holder); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1525 | // Check if interceptor provided a value for property. If it's |
| 1526 | // the case, return immediately. |
| 1527 | Label interceptor_failed; |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1528 | __ LoadRoot(scratch1(), Heap::kNoInterceptorResultSentinelRootIndex); |
| 1529 | __ cmp(r0, scratch1()); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1530 | __ b(eq, &interceptor_failed); |
| 1531 | frame_scope.GenerateLeaveFrame(); |
| 1532 | __ Ret(); |
| 1533 | |
| 1534 | __ bind(&interceptor_failed); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1535 | __ pop(this->name()); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1536 | __ pop(holder_reg); |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 1537 | if (must_preserve_receiver_reg) { |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1538 | __ pop(receiver()); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1539 | } |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1540 | // Leave the internal frame. |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 1541 | } |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 1542 | |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1543 | GenerateLoadPostInterceptor(holder_reg, interceptor_holder, name, lookup); |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 1544 | } else { // !compile_followup_inline |
| 1545 | // Call the runtime system to load the interceptor. |
| 1546 | // Check that the maps haven't changed. |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 1547 | PushInterceptorArguments(masm(), receiver(), holder_reg, |
| 1548 | this->name(), interceptor_holder); |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 1549 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1550 | ExternalReference ref = |
| 1551 | ExternalReference(IC_Utility(IC::kLoadPropertyWithInterceptorForLoad), |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 1552 | isolate()); |
jkummerow@chromium.org | 28faa98 | 2012-04-13 09:58:30 +0000 | [diff] [blame] | 1553 | __ TailCallExternalReference(ref, 6, 1); |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 1554 | } |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1555 | } |
| 1556 | |
| 1557 | |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1558 | void CallStubCompiler::GenerateNameCheck(Handle<Name> name, Label* miss) { |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 1559 | if (kind_ == Code::KEYED_CALL_IC) { |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1560 | __ cmp(r2, Operand(name)); |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 1561 | __ b(ne, miss); |
| 1562 | } |
| 1563 | } |
| 1564 | |
| 1565 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1566 | void CallStubCompiler::GenerateGlobalReceiverCheck(Handle<JSObject> object, |
| 1567 | Handle<JSObject> holder, |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1568 | Handle<Name> name, |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 1569 | Label* miss) { |
| 1570 | ASSERT(holder->IsGlobalObject()); |
| 1571 | |
| 1572 | // Get the number of arguments. |
| 1573 | const int argc = arguments().immediate(); |
| 1574 | |
| 1575 | // Get the receiver from the stack. |
| 1576 | __ ldr(r0, MemOperand(sp, argc * kPointerSize)); |
| 1577 | |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 1578 | // Check that the maps haven't changed. |
mstarzinger@chromium.org | 3233d2f | 2012-03-14 11:16:03 +0000 | [diff] [blame] | 1579 | __ JumpIfSmi(r0, miss); |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 1580 | CheckPrototypes(object, r0, holder, r3, r1, r4, name, miss); |
| 1581 | } |
| 1582 | |
| 1583 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1584 | void CallStubCompiler::GenerateLoadFunctionFromCell( |
| 1585 | Handle<JSGlobalPropertyCell> cell, |
| 1586 | Handle<JSFunction> function, |
| 1587 | Label* miss) { |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 1588 | // Get the value from the cell. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1589 | __ mov(r3, Operand(cell)); |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 1590 | __ ldr(r1, FieldMemOperand(r3, JSGlobalPropertyCell::kValueOffset)); |
| 1591 | |
| 1592 | // Check that the cell contains the same function. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1593 | if (heap()->InNewSpace(*function)) { |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 1594 | // We can't embed a pointer to a function in new space so we have |
| 1595 | // to verify that the shared function info is unchanged. This has |
| 1596 | // the nice side effect that multiple closures based on the same |
| 1597 | // function can all use this call IC. Before we load through the |
| 1598 | // function, we have to verify that it still is a function. |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 1599 | __ JumpIfSmi(r1, miss); |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 1600 | __ CompareObjectType(r1, r3, r3, JS_FUNCTION_TYPE); |
| 1601 | __ b(ne, miss); |
| 1602 | |
| 1603 | // Check the shared function info. Make sure it hasn't changed. |
| 1604 | __ Move(r3, Handle<SharedFunctionInfo>(function->shared())); |
| 1605 | __ ldr(r4, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset)); |
| 1606 | __ cmp(r4, r3); |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 1607 | } else { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1608 | __ cmp(r1, Operand(function)); |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 1609 | } |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1610 | __ b(ne, miss); |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 1611 | } |
| 1612 | |
| 1613 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1614 | void CallStubCompiler::GenerateMissBranch() { |
| 1615 | Handle<Code> code = |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 1616 | isolate()->stub_cache()->ComputeCallMiss(arguments().immediate(), |
| 1617 | kind_, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1618 | extra_state_); |
| 1619 | __ Jump(code, RelocInfo::CODE_TARGET); |
| 1620 | } |
| 1621 | |
| 1622 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1623 | Handle<Code> CallStubCompiler::CompileCallField(Handle<JSObject> object, |
| 1624 | Handle<JSObject> holder, |
yangguo@chromium.org | eeb44b6 | 2012-11-13 13:56:09 +0000 | [diff] [blame] | 1625 | PropertyIndex index, |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1626 | Handle<Name> name) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1627 | // ----------- S t a t e ------------- |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1628 | // -- r2 : name |
| 1629 | // -- lr : return address |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1630 | // ----------------------------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1631 | Label miss; |
| 1632 | |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 1633 | GenerateNameCheck(name, &miss); |
| 1634 | |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 1635 | const int argc = arguments().immediate(); |
| 1636 | |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 1637 | // Get the receiver of the function from the stack into r0. |
| 1638 | __ ldr(r0, MemOperand(sp, argc * kPointerSize)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1639 | // Check that the receiver isn't a smi. |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 1640 | __ JumpIfSmi(r0, &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1641 | |
| 1642 | // Do the right check and compute the holder register. |
ager@chromium.org | 6a2b0aa | 2010-07-13 20:58:03 +0000 | [diff] [blame] | 1643 | Register reg = CheckPrototypes(object, r0, holder, r1, r3, r4, name, &miss); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 1644 | GenerateFastPropertyLoad(masm(), r1, reg, index.is_inobject(holder), |
| 1645 | index.translate(holder), Representation::Tagged()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1646 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1647 | GenerateCallFunction(masm(), object, arguments(), &miss, extra_state_); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1648 | |
| 1649 | // Handle call cache miss. |
| 1650 | __ bind(&miss); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1651 | GenerateMissBranch(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1652 | |
| 1653 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 1654 | return GetCode(Code::FIELD, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1655 | } |
| 1656 | |
| 1657 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1658 | Handle<Code> CallStubCompiler::CompileArrayPushCall( |
| 1659 | Handle<Object> object, |
| 1660 | Handle<JSObject> holder, |
| 1661 | Handle<JSGlobalPropertyCell> cell, |
| 1662 | Handle<JSFunction> function, |
| 1663 | Handle<String> name) { |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 1664 | // ----------- S t a t e ------------- |
| 1665 | // -- r2 : name |
| 1666 | // -- lr : return address |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 1667 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero-based) |
| 1668 | // -- ... |
| 1669 | // -- sp[argc * 4] : receiver |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 1670 | // ----------------------------------- |
| 1671 | |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 1672 | // If object is not an array, bail out to regular call. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1673 | if (!object->IsJSArray() || !cell.is_null()) return Handle<Code>::null(); |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 1674 | |
| 1675 | Label miss; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1676 | GenerateNameCheck(name, &miss); |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 1677 | |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 1678 | Register receiver = r1; |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 1679 | // Get the receiver from the stack |
| 1680 | const int argc = arguments().immediate(); |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 1681 | __ ldr(receiver, MemOperand(sp, argc * kPointerSize)); |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 1682 | |
| 1683 | // Check that the receiver isn't a smi. |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 1684 | __ JumpIfSmi(receiver, &miss); |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 1685 | |
| 1686 | // Check that the maps haven't changed. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1687 | CheckPrototypes(Handle<JSObject>::cast(object), receiver, holder, r3, r0, r4, |
| 1688 | name, &miss); |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 1689 | |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 1690 | if (argc == 0) { |
| 1691 | // Nothing to do, just return the length. |
| 1692 | __ ldr(r0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1693 | __ Drop(argc + 1); |
| 1694 | __ Ret(); |
| 1695 | } else { |
| 1696 | Label call_builtin; |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 1697 | |
| 1698 | if (argc == 1) { // Otherwise fall through to call the builtin. |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 1699 | Label attempt_to_grow_elements, with_write_barrier, check_double; |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 1700 | |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1701 | Register elements = r6; |
| 1702 | Register end_elements = r5; |
| 1703 | // Get the elements array of the object. |
| 1704 | __ ldr(elements, FieldMemOperand(receiver, JSArray::kElementsOffset)); |
| 1705 | |
| 1706 | // Check that the elements are in fast mode and writable. |
| 1707 | __ CheckMap(elements, |
| 1708 | r0, |
| 1709 | Heap::kFixedArrayMapRootIndex, |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 1710 | &check_double, |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1711 | DONT_DO_SMI_CHECK); |
| 1712 | |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 1713 | // Get the array's length into r0 and calculate new length. |
| 1714 | __ ldr(r0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 1715 | __ add(r0, r0, Operand(Smi::FromInt(argc))); |
| 1716 | |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1717 | // Get the elements' length. |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 1718 | __ ldr(r4, FieldMemOperand(elements, FixedArray::kLengthOffset)); |
| 1719 | |
| 1720 | // Check if we could survive without allocation. |
| 1721 | __ cmp(r0, r4); |
| 1722 | __ b(gt, &attempt_to_grow_elements); |
| 1723 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1724 | // Check if value is a smi. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1725 | __ ldr(r4, MemOperand(sp, (argc - 1) * kPointerSize)); |
| 1726 | __ JumpIfNotSmi(r4, &with_write_barrier); |
| 1727 | |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 1728 | // Save new length. |
| 1729 | __ str(r0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1730 | |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1731 | // Store the value. |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 1732 | // We may need a register containing the address end_elements below, |
| 1733 | // so write back the value in end_elements. |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 1734 | __ add(end_elements, elements, Operand::PointerOffsetFromSmiKey(r0)); |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 1735 | const int kEndElementsOffset = |
| 1736 | FixedArray::kHeaderSize - kHeapObjectTag - argc * kPointerSize; |
| 1737 | __ str(r4, MemOperand(end_elements, kEndElementsOffset, PreIndex)); |
| 1738 | |
| 1739 | // Check for a smi. |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 1740 | __ Drop(argc + 1); |
| 1741 | __ Ret(); |
| 1742 | |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 1743 | __ bind(&check_double); |
| 1744 | |
| 1745 | // Check that the elements are in fast mode and writable. |
| 1746 | __ CheckMap(elements, |
| 1747 | r0, |
| 1748 | Heap::kFixedDoubleArrayMapRootIndex, |
| 1749 | &call_builtin, |
| 1750 | DONT_DO_SMI_CHECK); |
| 1751 | |
| 1752 | // Get the array's length into r0 and calculate new length. |
| 1753 | __ ldr(r0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 1754 | __ add(r0, r0, Operand(Smi::FromInt(argc))); |
| 1755 | |
| 1756 | // Get the elements' length. |
| 1757 | __ ldr(r4, FieldMemOperand(elements, FixedArray::kLengthOffset)); |
| 1758 | |
| 1759 | // Check if we could survive without allocation. |
| 1760 | __ cmp(r0, r4); |
| 1761 | __ b(gt, &call_builtin); |
| 1762 | |
| 1763 | __ ldr(r4, MemOperand(sp, (argc - 1) * kPointerSize)); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 1764 | __ StoreNumberToDoubleElements(r4, r0, elements, r5, |
| 1765 | &call_builtin, argc * kDoubleSize); |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 1766 | |
| 1767 | // Save new length. |
| 1768 | __ str(r0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1769 | |
| 1770 | // Check for a smi. |
| 1771 | __ Drop(argc + 1); |
| 1772 | __ Ret(); |
| 1773 | |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 1774 | __ bind(&with_write_barrier); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1775 | |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1776 | __ ldr(r3, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
| 1777 | |
| 1778 | if (FLAG_smi_only_arrays && !FLAG_trace_elements_transitions) { |
| 1779 | Label fast_object, not_fast_object; |
| 1780 | __ CheckFastObjectElements(r3, r7, ¬_fast_object); |
| 1781 | __ jmp(&fast_object); |
| 1782 | // In case of fast smi-only, convert to fast object, otherwise bail out. |
| 1783 | __ bind(¬_fast_object); |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 1784 | __ CheckFastSmiElements(r3, r7, &call_builtin); |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 1785 | |
| 1786 | __ ldr(r7, FieldMemOperand(r4, HeapObject::kMapOffset)); |
| 1787 | __ LoadRoot(ip, Heap::kHeapNumberMapRootIndex); |
| 1788 | __ cmp(r7, ip); |
| 1789 | __ b(eq, &call_builtin); |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1790 | // edx: receiver |
| 1791 | // r3: map |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 1792 | Label try_holey_map; |
| 1793 | __ LoadTransitionedArrayMapConditional(FAST_SMI_ELEMENTS, |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1794 | FAST_ELEMENTS, |
| 1795 | r3, |
| 1796 | r7, |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 1797 | &try_holey_map); |
| 1798 | __ mov(r2, receiver); |
| 1799 | ElementsTransitionGenerator:: |
yangguo@chromium.org | 46a2a51 | 2013-01-18 16:29:40 +0000 | [diff] [blame] | 1800 | GenerateMapChangeElementsTransition(masm(), |
| 1801 | DONT_TRACK_ALLOCATION_SITE, |
| 1802 | NULL); |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 1803 | __ jmp(&fast_object); |
| 1804 | |
| 1805 | __ bind(&try_holey_map); |
| 1806 | __ LoadTransitionedArrayMapConditional(FAST_HOLEY_SMI_ELEMENTS, |
| 1807 | FAST_HOLEY_ELEMENTS, |
| 1808 | r3, |
| 1809 | r7, |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1810 | &call_builtin); |
| 1811 | __ mov(r2, receiver); |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 1812 | ElementsTransitionGenerator:: |
yangguo@chromium.org | 46a2a51 | 2013-01-18 16:29:40 +0000 | [diff] [blame] | 1813 | GenerateMapChangeElementsTransition(masm(), |
| 1814 | DONT_TRACK_ALLOCATION_SITE, |
| 1815 | NULL); |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1816 | __ bind(&fast_object); |
| 1817 | } else { |
| 1818 | __ CheckFastObjectElements(r3, r3, &call_builtin); |
| 1819 | } |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1820 | |
| 1821 | // Save new length. |
| 1822 | __ str(r0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1823 | |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1824 | // Store the value. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1825 | // We may need a register containing the address end_elements below, |
| 1826 | // so write back the value in end_elements. |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 1827 | __ add(end_elements, elements, Operand::PointerOffsetFromSmiKey(r0)); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1828 | __ str(r4, MemOperand(end_elements, kEndElementsOffset, PreIndex)); |
| 1829 | |
| 1830 | __ RecordWrite(elements, |
| 1831 | end_elements, |
| 1832 | r4, |
| 1833 | kLRHasNotBeenSaved, |
| 1834 | kDontSaveFPRegs, |
| 1835 | EMIT_REMEMBERED_SET, |
| 1836 | OMIT_SMI_CHECK); |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 1837 | __ Drop(argc + 1); |
| 1838 | __ Ret(); |
| 1839 | |
| 1840 | __ bind(&attempt_to_grow_elements); |
| 1841 | // r0: array's length + 1. |
| 1842 | // r4: elements' length. |
| 1843 | |
| 1844 | if (!FLAG_inline_new) { |
| 1845 | __ b(&call_builtin); |
| 1846 | } |
| 1847 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1848 | __ ldr(r2, MemOperand(sp, (argc - 1) * kPointerSize)); |
svenpanne@chromium.org | a8bb4d9 | 2011-10-10 13:20:40 +0000 | [diff] [blame] | 1849 | // Growing elements that are SMI-only requires special handling in case |
| 1850 | // the new element is non-Smi. For now, delegate to the builtin. |
| 1851 | Label no_fast_elements_check; |
| 1852 | __ JumpIfSmi(r2, &no_fast_elements_check); |
| 1853 | __ ldr(r7, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
| 1854 | __ CheckFastObjectElements(r7, r7, &call_builtin); |
| 1855 | __ bind(&no_fast_elements_check); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1856 | |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 1857 | ExternalReference new_space_allocation_top = |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 1858 | ExternalReference::new_space_allocation_top_address(isolate()); |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 1859 | ExternalReference new_space_allocation_limit = |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 1860 | ExternalReference::new_space_allocation_limit_address(isolate()); |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 1861 | |
| 1862 | const int kAllocationDelta = 4; |
| 1863 | // Load top and check if it is the end of elements. |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 1864 | __ add(end_elements, elements, Operand::PointerOffsetFromSmiKey(r0)); |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 1865 | __ add(end_elements, end_elements, Operand(kEndElementsOffset)); |
| 1866 | __ mov(r7, Operand(new_space_allocation_top)); |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1867 | __ ldr(r3, MemOperand(r7)); |
| 1868 | __ cmp(end_elements, r3); |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 1869 | __ b(ne, &call_builtin); |
| 1870 | |
| 1871 | __ mov(r9, Operand(new_space_allocation_limit)); |
| 1872 | __ ldr(r9, MemOperand(r9)); |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1873 | __ add(r3, r3, Operand(kAllocationDelta * kPointerSize)); |
| 1874 | __ cmp(r3, r9); |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 1875 | __ b(hi, &call_builtin); |
| 1876 | |
| 1877 | // We fit and could grow elements. |
| 1878 | // Update new_space_allocation_top. |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1879 | __ str(r3, MemOperand(r7)); |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 1880 | // Push the argument. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1881 | __ str(r2, MemOperand(end_elements)); |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 1882 | // Fill the rest with holes. |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1883 | __ LoadRoot(r3, Heap::kTheHoleValueRootIndex); |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 1884 | for (int i = 1; i < kAllocationDelta; i++) { |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1885 | __ str(r3, MemOperand(end_elements, i * kPointerSize)); |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 1886 | } |
| 1887 | |
| 1888 | // Update elements' and array's sizes. |
| 1889 | __ str(r0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1890 | __ add(r4, r4, Operand(Smi::FromInt(kAllocationDelta))); |
| 1891 | __ str(r4, FieldMemOperand(elements, FixedArray::kLengthOffset)); |
| 1892 | |
| 1893 | // Elements are in new space, so write barrier is not required. |
| 1894 | __ Drop(argc + 1); |
| 1895 | __ Ret(); |
| 1896 | } |
| 1897 | __ bind(&call_builtin); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 1898 | __ TailCallExternalReference( |
| 1899 | ExternalReference(Builtins::c_ArrayPush, isolate()), argc + 1, 1); |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 1900 | } |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 1901 | |
| 1902 | // Handle call cache miss. |
| 1903 | __ bind(&miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1904 | GenerateMissBranch(); |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 1905 | |
| 1906 | // Return the generated code. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1907 | return GetCode(function); |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 1908 | } |
| 1909 | |
| 1910 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1911 | Handle<Code> CallStubCompiler::CompileArrayPopCall( |
| 1912 | Handle<Object> object, |
| 1913 | Handle<JSObject> holder, |
| 1914 | Handle<JSGlobalPropertyCell> cell, |
| 1915 | Handle<JSFunction> function, |
| 1916 | Handle<String> name) { |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 1917 | // ----------- S t a t e ------------- |
| 1918 | // -- r2 : name |
| 1919 | // -- lr : return address |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 1920 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero-based) |
| 1921 | // -- ... |
| 1922 | // -- sp[argc * 4] : receiver |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 1923 | // ----------------------------------- |
| 1924 | |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 1925 | // If object is not an array, bail out to regular call. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1926 | if (!object->IsJSArray() || !cell.is_null()) return Handle<Code>::null(); |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 1927 | |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 1928 | Label miss, return_undefined, call_builtin; |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 1929 | Register receiver = r1; |
| 1930 | Register elements = r3; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1931 | GenerateNameCheck(name, &miss); |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 1932 | |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 1933 | // Get the receiver from the stack |
| 1934 | const int argc = arguments().immediate(); |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 1935 | __ ldr(receiver, MemOperand(sp, argc * kPointerSize)); |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 1936 | // Check that the receiver isn't a smi. |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 1937 | __ JumpIfSmi(receiver, &miss); |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 1938 | |
| 1939 | // Check that the maps haven't changed. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1940 | CheckPrototypes(Handle<JSObject>::cast(object), receiver, holder, elements, |
| 1941 | r4, r0, name, &miss); |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 1942 | |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 1943 | // Get the elements array of the object. |
| 1944 | __ ldr(elements, FieldMemOperand(receiver, JSArray::kElementsOffset)); |
| 1945 | |
| 1946 | // Check that the elements are in fast mode and writable. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1947 | __ CheckMap(elements, |
| 1948 | r0, |
| 1949 | Heap::kFixedArrayMapRootIndex, |
| 1950 | &call_builtin, |
| 1951 | DONT_DO_SMI_CHECK); |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 1952 | |
| 1953 | // Get the array's length into r4 and calculate new length. |
| 1954 | __ ldr(r4, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1955 | __ sub(r4, r4, Operand(Smi::FromInt(1)), SetCC); |
| 1956 | __ b(lt, &return_undefined); |
| 1957 | |
| 1958 | // Get the last element. |
| 1959 | __ LoadRoot(r6, Heap::kTheHoleValueRootIndex); |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 1960 | // We can't address the last element in one operation. Compute the more |
| 1961 | // expensive shift first, and use an offset later on. |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 1962 | __ add(elements, elements, Operand::PointerOffsetFromSmiKey(r4)); |
fschneider@chromium.org | 7d10be5 | 2012-04-10 12:30:14 +0000 | [diff] [blame] | 1963 | __ ldr(r0, FieldMemOperand(elements, FixedArray::kHeaderSize)); |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 1964 | __ cmp(r0, r6); |
| 1965 | __ b(eq, &call_builtin); |
| 1966 | |
| 1967 | // Set the array's length. |
| 1968 | __ str(r4, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1969 | |
| 1970 | // Fill with the hole. |
fschneider@chromium.org | 7d10be5 | 2012-04-10 12:30:14 +0000 | [diff] [blame] | 1971 | __ str(r6, FieldMemOperand(elements, FixedArray::kHeaderSize)); |
vegorov@chromium.org | 21b5e95 | 2010-11-23 10:24:40 +0000 | [diff] [blame] | 1972 | __ Drop(argc + 1); |
| 1973 | __ Ret(); |
| 1974 | |
| 1975 | __ bind(&return_undefined); |
| 1976 | __ LoadRoot(r0, Heap::kUndefinedValueRootIndex); |
| 1977 | __ Drop(argc + 1); |
| 1978 | __ Ret(); |
| 1979 | |
| 1980 | __ bind(&call_builtin); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 1981 | __ TailCallExternalReference( |
| 1982 | ExternalReference(Builtins::c_ArrayPop, isolate()), argc + 1, 1); |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 1983 | |
| 1984 | // Handle call cache miss. |
| 1985 | __ bind(&miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1986 | GenerateMissBranch(); |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 1987 | |
| 1988 | // Return the generated code. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1989 | return GetCode(function); |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 1990 | } |
| 1991 | |
| 1992 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1993 | Handle<Code> CallStubCompiler::CompileStringCharCodeAtCall( |
| 1994 | Handle<Object> object, |
| 1995 | Handle<JSObject> holder, |
| 1996 | Handle<JSGlobalPropertyCell> cell, |
| 1997 | Handle<JSFunction> function, |
| 1998 | Handle<String> name) { |
ricow@chromium.org | 65fae84 | 2010-08-25 15:26:24 +0000 | [diff] [blame] | 1999 | // ----------- S t a t e ------------- |
| 2000 | // -- r2 : function name |
| 2001 | // -- lr : return address |
| 2002 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero-based) |
| 2003 | // -- ... |
| 2004 | // -- sp[argc * 4] : receiver |
| 2005 | // ----------------------------------- |
| 2006 | |
| 2007 | // If object is not a string, bail out to regular call. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2008 | if (!object->IsString() || !cell.is_null()) return Handle<Code>::null(); |
ricow@chromium.org | 65fae84 | 2010-08-25 15:26:24 +0000 | [diff] [blame] | 2009 | |
| 2010 | const int argc = arguments().immediate(); |
ricow@chromium.org | 65fae84 | 2010-08-25 15:26:24 +0000 | [diff] [blame] | 2011 | Label miss; |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 2012 | Label name_miss; |
ricow@chromium.org | 65fae84 | 2010-08-25 15:26:24 +0000 | [diff] [blame] | 2013 | Label index_out_of_range; |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 2014 | Label* index_out_of_range_label = &index_out_of_range; |
| 2015 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2016 | if (kind_ == Code::CALL_IC && |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2017 | (CallICBase::StringStubState::decode(extra_state_) == |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2018 | DEFAULT_STRING_STUB)) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 2019 | index_out_of_range_label = &miss; |
| 2020 | } |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2021 | GenerateNameCheck(name, &name_miss); |
ricow@chromium.org | 65fae84 | 2010-08-25 15:26:24 +0000 | [diff] [blame] | 2022 | |
| 2023 | // Check that the maps starting from the prototype haven't changed. |
| 2024 | GenerateDirectLoadGlobalFunctionPrototype(masm(), |
| 2025 | Context::STRING_FUNCTION_INDEX, |
fschneider@chromium.org | c20610a | 2010-09-22 09:44:58 +0000 | [diff] [blame] | 2026 | r0, |
| 2027 | &miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2028 | ASSERT(!object.is_identical_to(holder)); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 2029 | CheckPrototypes( |
| 2030 | Handle<JSObject>(JSObject::cast(object->GetPrototype(isolate()))), |
| 2031 | r0, holder, r1, r3, r4, name, &miss); |
ricow@chromium.org | 65fae84 | 2010-08-25 15:26:24 +0000 | [diff] [blame] | 2032 | |
| 2033 | Register receiver = r1; |
| 2034 | Register index = r4; |
ricow@chromium.org | 65fae84 | 2010-08-25 15:26:24 +0000 | [diff] [blame] | 2035 | Register result = r0; |
| 2036 | __ ldr(receiver, MemOperand(sp, argc * kPointerSize)); |
| 2037 | if (argc > 0) { |
| 2038 | __ ldr(index, MemOperand(sp, (argc - 1) * kPointerSize)); |
| 2039 | } else { |
| 2040 | __ LoadRoot(index, Heap::kUndefinedValueRootIndex); |
| 2041 | } |
| 2042 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2043 | StringCharCodeAtGenerator generator(receiver, |
| 2044 | index, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2045 | result, |
| 2046 | &miss, // When not a string. |
| 2047 | &miss, // When not a number. |
| 2048 | index_out_of_range_label, |
| 2049 | STRING_INDEX_IS_NUMBER); |
| 2050 | generator.GenerateFast(masm()); |
ricow@chromium.org | 65fae84 | 2010-08-25 15:26:24 +0000 | [diff] [blame] | 2051 | __ Drop(argc + 1); |
| 2052 | __ Ret(); |
| 2053 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2054 | StubRuntimeCallHelper call_helper; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2055 | generator.GenerateSlow(masm(), call_helper); |
ricow@chromium.org | 65fae84 | 2010-08-25 15:26:24 +0000 | [diff] [blame] | 2056 | |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 2057 | if (index_out_of_range.is_linked()) { |
| 2058 | __ bind(&index_out_of_range); |
| 2059 | __ LoadRoot(r0, Heap::kNanValueRootIndex); |
| 2060 | __ Drop(argc + 1); |
| 2061 | __ Ret(); |
| 2062 | } |
ricow@chromium.org | 65fae84 | 2010-08-25 15:26:24 +0000 | [diff] [blame] | 2063 | |
| 2064 | __ bind(&miss); |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 2065 | // Restore function name in r2. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2066 | __ Move(r2, name); |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 2067 | __ bind(&name_miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2068 | GenerateMissBranch(); |
ricow@chromium.org | 65fae84 | 2010-08-25 15:26:24 +0000 | [diff] [blame] | 2069 | |
| 2070 | // Return the generated code. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2071 | return GetCode(function); |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 2072 | } |
| 2073 | |
| 2074 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2075 | Handle<Code> CallStubCompiler::CompileStringCharAtCall( |
| 2076 | Handle<Object> object, |
| 2077 | Handle<JSObject> holder, |
| 2078 | Handle<JSGlobalPropertyCell> cell, |
| 2079 | Handle<JSFunction> function, |
| 2080 | Handle<String> name) { |
ricow@chromium.org | 65fae84 | 2010-08-25 15:26:24 +0000 | [diff] [blame] | 2081 | // ----------- S t a t e ------------- |
| 2082 | // -- r2 : function name |
| 2083 | // -- lr : return address |
| 2084 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero-based) |
| 2085 | // -- ... |
| 2086 | // -- sp[argc * 4] : receiver |
| 2087 | // ----------------------------------- |
| 2088 | |
| 2089 | // If object is not a string, bail out to regular call. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2090 | if (!object->IsString() || !cell.is_null()) return Handle<Code>::null(); |
ricow@chromium.org | 65fae84 | 2010-08-25 15:26:24 +0000 | [diff] [blame] | 2091 | |
| 2092 | const int argc = arguments().immediate(); |
ricow@chromium.org | 65fae84 | 2010-08-25 15:26:24 +0000 | [diff] [blame] | 2093 | Label miss; |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 2094 | Label name_miss; |
ricow@chromium.org | 65fae84 | 2010-08-25 15:26:24 +0000 | [diff] [blame] | 2095 | Label index_out_of_range; |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 2096 | Label* index_out_of_range_label = &index_out_of_range; |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2097 | if (kind_ == Code::CALL_IC && |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2098 | (CallICBase::StringStubState::decode(extra_state_) == |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2099 | DEFAULT_STRING_STUB)) { |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 2100 | index_out_of_range_label = &miss; |
| 2101 | } |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2102 | GenerateNameCheck(name, &name_miss); |
ricow@chromium.org | 65fae84 | 2010-08-25 15:26:24 +0000 | [diff] [blame] | 2103 | |
| 2104 | // Check that the maps starting from the prototype haven't changed. |
| 2105 | GenerateDirectLoadGlobalFunctionPrototype(masm(), |
| 2106 | Context::STRING_FUNCTION_INDEX, |
fschneider@chromium.org | c20610a | 2010-09-22 09:44:58 +0000 | [diff] [blame] | 2107 | r0, |
| 2108 | &miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2109 | ASSERT(!object.is_identical_to(holder)); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 2110 | CheckPrototypes( |
| 2111 | Handle<JSObject>(JSObject::cast(object->GetPrototype(isolate()))), |
| 2112 | r0, holder, r1, r3, r4, name, &miss); |
ricow@chromium.org | 65fae84 | 2010-08-25 15:26:24 +0000 | [diff] [blame] | 2113 | |
| 2114 | Register receiver = r0; |
| 2115 | Register index = r4; |
danno@chromium.org | c612e02 | 2011-11-10 11:38:15 +0000 | [diff] [blame] | 2116 | Register scratch = r3; |
ricow@chromium.org | 65fae84 | 2010-08-25 15:26:24 +0000 | [diff] [blame] | 2117 | Register result = r0; |
| 2118 | __ ldr(receiver, MemOperand(sp, argc * kPointerSize)); |
| 2119 | if (argc > 0) { |
| 2120 | __ ldr(index, MemOperand(sp, (argc - 1) * kPointerSize)); |
| 2121 | } else { |
| 2122 | __ LoadRoot(index, Heap::kUndefinedValueRootIndex); |
| 2123 | } |
| 2124 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2125 | StringCharAtGenerator generator(receiver, |
| 2126 | index, |
danno@chromium.org | c612e02 | 2011-11-10 11:38:15 +0000 | [diff] [blame] | 2127 | scratch, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2128 | result, |
| 2129 | &miss, // When not a string. |
| 2130 | &miss, // When not a number. |
| 2131 | index_out_of_range_label, |
| 2132 | STRING_INDEX_IS_NUMBER); |
| 2133 | generator.GenerateFast(masm()); |
ricow@chromium.org | 65fae84 | 2010-08-25 15:26:24 +0000 | [diff] [blame] | 2134 | __ Drop(argc + 1); |
| 2135 | __ Ret(); |
| 2136 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2137 | StubRuntimeCallHelper call_helper; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2138 | generator.GenerateSlow(masm(), call_helper); |
ricow@chromium.org | 65fae84 | 2010-08-25 15:26:24 +0000 | [diff] [blame] | 2139 | |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 2140 | if (index_out_of_range.is_linked()) { |
| 2141 | __ bind(&index_out_of_range); |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 2142 | __ LoadRoot(r0, Heap::kempty_stringRootIndex); |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 2143 | __ Drop(argc + 1); |
| 2144 | __ Ret(); |
| 2145 | } |
ricow@chromium.org | 65fae84 | 2010-08-25 15:26:24 +0000 | [diff] [blame] | 2146 | |
| 2147 | __ bind(&miss); |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 2148 | // Restore function name in r2. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2149 | __ Move(r2, name); |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 2150 | __ bind(&name_miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2151 | GenerateMissBranch(); |
ricow@chromium.org | 65fae84 | 2010-08-25 15:26:24 +0000 | [diff] [blame] | 2152 | |
| 2153 | // Return the generated code. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2154 | return GetCode(function); |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 2155 | } |
| 2156 | |
| 2157 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2158 | Handle<Code> CallStubCompiler::CompileStringFromCharCodeCall( |
| 2159 | Handle<Object> object, |
| 2160 | Handle<JSObject> holder, |
| 2161 | Handle<JSGlobalPropertyCell> cell, |
| 2162 | Handle<JSFunction> function, |
| 2163 | Handle<String> name) { |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 2164 | // ----------- S t a t e ------------- |
| 2165 | // -- r2 : function name |
| 2166 | // -- lr : return address |
| 2167 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero-based) |
| 2168 | // -- ... |
| 2169 | // -- sp[argc * 4] : receiver |
| 2170 | // ----------------------------------- |
| 2171 | |
| 2172 | const int argc = arguments().immediate(); |
| 2173 | |
| 2174 | // If the object is not a JSObject or we got an unexpected number of |
| 2175 | // arguments, bail out to the regular call. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2176 | if (!object->IsJSObject() || argc != 1) return Handle<Code>::null(); |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 2177 | |
| 2178 | Label miss; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2179 | GenerateNameCheck(name, &miss); |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 2180 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2181 | if (cell.is_null()) { |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 2182 | __ ldr(r1, MemOperand(sp, 1 * kPointerSize)); |
| 2183 | |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 2184 | __ JumpIfSmi(r1, &miss); |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 2185 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2186 | CheckPrototypes(Handle<JSObject>::cast(object), r1, holder, r0, r3, r4, |
| 2187 | name, &miss); |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 2188 | } else { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2189 | ASSERT(cell->value() == *function); |
| 2190 | GenerateGlobalReceiverCheck(Handle<JSObject>::cast(object), holder, name, |
| 2191 | &miss); |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 2192 | GenerateLoadFunctionFromCell(cell, function, &miss); |
| 2193 | } |
| 2194 | |
| 2195 | // Load the char code argument. |
| 2196 | Register code = r1; |
| 2197 | __ ldr(code, MemOperand(sp, 0 * kPointerSize)); |
| 2198 | |
| 2199 | // Check the code is a smi. |
| 2200 | Label slow; |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 2201 | __ JumpIfNotSmi(code, &slow); |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 2202 | |
| 2203 | // Convert the smi code to uint16. |
| 2204 | __ and_(code, code, Operand(Smi::FromInt(0xffff))); |
| 2205 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2206 | StringCharFromCodeGenerator generator(code, r0); |
| 2207 | generator.GenerateFast(masm()); |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 2208 | __ Drop(argc + 1); |
| 2209 | __ Ret(); |
| 2210 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 2211 | StubRuntimeCallHelper call_helper; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2212 | generator.GenerateSlow(masm(), call_helper); |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 2213 | |
| 2214 | // Tail call the full function. We do not have to patch the receiver |
| 2215 | // because the function makes no use of it. |
| 2216 | __ bind(&slow); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 2217 | ParameterCount expected(function); |
| 2218 | __ InvokeFunction(function, expected, arguments(), |
| 2219 | JUMP_FUNCTION, NullCallWrapper(), CALL_AS_METHOD); |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 2220 | |
| 2221 | __ bind(&miss); |
| 2222 | // r2: function name. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2223 | GenerateMissBranch(); |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 2224 | |
| 2225 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 2226 | return cell.is_null() ? GetCode(function) : GetCode(Code::NORMAL, name); |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 2227 | } |
| 2228 | |
| 2229 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2230 | Handle<Code> CallStubCompiler::CompileMathFloorCall( |
| 2231 | Handle<Object> object, |
| 2232 | Handle<JSObject> holder, |
| 2233 | Handle<JSGlobalPropertyCell> cell, |
| 2234 | Handle<JSFunction> function, |
| 2235 | Handle<String> name) { |
erik.corry@gmail.com | 4a6c327 | 2010-11-18 12:04:40 +0000 | [diff] [blame] | 2236 | // ----------- S t a t e ------------- |
| 2237 | // -- r2 : function name |
| 2238 | // -- lr : return address |
| 2239 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero-based) |
| 2240 | // -- ... |
| 2241 | // -- sp[argc * 4] : receiver |
| 2242 | // ----------------------------------- |
| 2243 | |
erik.corry@gmail.com | 4a6c327 | 2010-11-18 12:04:40 +0000 | [diff] [blame] | 2244 | const int argc = arguments().immediate(); |
erik.corry@gmail.com | 4a6c327 | 2010-11-18 12:04:40 +0000 | [diff] [blame] | 2245 | // If the object is not a JSObject or we got an unexpected number of |
| 2246 | // arguments, bail out to the regular call. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2247 | if (!object->IsJSObject() || argc != 1) return Handle<Code>::null(); |
erik.corry@gmail.com | 4a6c327 | 2010-11-18 12:04:40 +0000 | [diff] [blame] | 2248 | |
| 2249 | Label miss, slow; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2250 | GenerateNameCheck(name, &miss); |
erik.corry@gmail.com | 4a6c327 | 2010-11-18 12:04:40 +0000 | [diff] [blame] | 2251 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2252 | if (cell.is_null()) { |
erik.corry@gmail.com | 4a6c327 | 2010-11-18 12:04:40 +0000 | [diff] [blame] | 2253 | __ ldr(r1, MemOperand(sp, 1 * kPointerSize)); |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 2254 | __ JumpIfSmi(r1, &miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2255 | CheckPrototypes(Handle<JSObject>::cast(object), r1, holder, r0, r3, r4, |
| 2256 | name, &miss); |
erik.corry@gmail.com | 4a6c327 | 2010-11-18 12:04:40 +0000 | [diff] [blame] | 2257 | } else { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2258 | ASSERT(cell->value() == *function); |
| 2259 | GenerateGlobalReceiverCheck(Handle<JSObject>::cast(object), holder, name, |
| 2260 | &miss); |
erik.corry@gmail.com | 4a6c327 | 2010-11-18 12:04:40 +0000 | [diff] [blame] | 2261 | GenerateLoadFunctionFromCell(cell, function, &miss); |
| 2262 | } |
| 2263 | |
| 2264 | // Load the (only) argument into r0. |
| 2265 | __ ldr(r0, MemOperand(sp, 0 * kPointerSize)); |
| 2266 | |
| 2267 | // If the argument is a smi, just return. |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 2268 | __ SmiTst(r0); |
erik.corry@gmail.com | 4a6c327 | 2010-11-18 12:04:40 +0000 | [diff] [blame] | 2269 | __ Drop(argc + 1, eq); |
| 2270 | __ Ret(eq); |
| 2271 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2272 | __ CheckMap(r0, r1, Heap::kHeapNumberMapRootIndex, &slow, DONT_DO_SMI_CHECK); |
erik.corry@gmail.com | 4a6c327 | 2010-11-18 12:04:40 +0000 | [diff] [blame] | 2273 | |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 2274 | Label smi_check, just_return; |
erik.corry@gmail.com | 4a6c327 | 2010-11-18 12:04:40 +0000 | [diff] [blame] | 2275 | |
| 2276 | // Load the HeapNumber value. |
| 2277 | // We will need access to the value in the core registers, so we load it |
| 2278 | // with ldrd and move it to the fpu. It also spares a sub instruction for |
| 2279 | // updating the HeapNumber value address, as vldr expects a multiple |
| 2280 | // of 4 offset. |
| 2281 | __ Ldrd(r4, r5, FieldMemOperand(r0, HeapNumber::kValueOffset)); |
| 2282 | __ vmov(d1, r4, r5); |
| 2283 | |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 2284 | // Check for NaN, Infinities and -0. |
erik.corry@gmail.com | 4a6c327 | 2010-11-18 12:04:40 +0000 | [diff] [blame] | 2285 | // They are invariant through a Math.Floor call, so just |
| 2286 | // return the original argument. |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 2287 | __ Sbfx(r3, r5, HeapNumber::kExponentShift, HeapNumber::kExponentBits); |
| 2288 | __ cmp(r3, Operand(-1)); |
| 2289 | __ b(eq, &just_return); |
| 2290 | __ eor(r3, r5, Operand(0x80000000u)); |
| 2291 | __ orr(r3, r3, r4, SetCC); |
| 2292 | __ b(eq, &just_return); |
| 2293 | // Test for values that can be exactly represented as a |
| 2294 | // signed 32-bit integer. |
| 2295 | __ TryDoubleToInt32Exact(r0, d1, d2); |
| 2296 | // If exact, check smi |
| 2297 | __ b(eq, &smi_check); |
| 2298 | __ cmp(r5, Operand(0)); |
erik.corry@gmail.com | 4a6c327 | 2010-11-18 12:04:40 +0000 | [diff] [blame] | 2299 | |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 2300 | // If input is in ]+0, +inf[, the cmp has cleared overflow and negative |
| 2301 | // (V=0 and N=0), the two following instructions won't execute and |
| 2302 | // we fall through smi_check to check if the result can fit into a smi. |
| 2303 | |
| 2304 | // If input is in ]-inf, -0[, sub one and, go to slow if we have |
| 2305 | // an overflow. Else we fall through smi check. |
| 2306 | // Hint: if x is a negative, non integer number, |
| 2307 | // floor(x) <=> round_to_zero(x) - 1. |
| 2308 | __ sub(r0, r0, Operand(1), SetCC, mi); |
| 2309 | __ b(vs, &slow); |
| 2310 | |
| 2311 | __ bind(&smi_check); |
| 2312 | // Check if the result can fit into an smi. If we had an overflow, |
| 2313 | // the result is either 0x80000000 or 0x7FFFFFFF and won't fit into an smi. |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 2314 | // If result doesn't fit into an smi, branch to slow. |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 2315 | __ SmiTag(r0, SetCC); |
| 2316 | __ b(vs, &slow); |
erik.corry@gmail.com | 4a6c327 | 2010-11-18 12:04:40 +0000 | [diff] [blame] | 2317 | |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 2318 | __ bind(&just_return); |
erik.corry@gmail.com | 4a6c327 | 2010-11-18 12:04:40 +0000 | [diff] [blame] | 2319 | __ Drop(argc + 1); |
| 2320 | __ Ret(); |
| 2321 | |
sgjesse@chromium.org | c6c5718 | 2011-01-17 12:24:25 +0000 | [diff] [blame] | 2322 | __ bind(&slow); |
erik.corry@gmail.com | 4a6c327 | 2010-11-18 12:04:40 +0000 | [diff] [blame] | 2323 | // Tail call the full function. We do not have to patch the receiver |
| 2324 | // because the function makes no use of it. |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 2325 | ParameterCount expected(function); |
| 2326 | __ InvokeFunction(function, expected, arguments(), |
| 2327 | JUMP_FUNCTION, NullCallWrapper(), CALL_AS_METHOD); |
erik.corry@gmail.com | 4a6c327 | 2010-11-18 12:04:40 +0000 | [diff] [blame] | 2328 | |
| 2329 | __ bind(&miss); |
| 2330 | // r2: function name. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2331 | GenerateMissBranch(); |
erik.corry@gmail.com | 4a6c327 | 2010-11-18 12:04:40 +0000 | [diff] [blame] | 2332 | |
| 2333 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 2334 | return cell.is_null() ? GetCode(function) : GetCode(Code::NORMAL, name); |
fschneider@chromium.org | c20610a | 2010-09-22 09:44:58 +0000 | [diff] [blame] | 2335 | } |
| 2336 | |
| 2337 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2338 | Handle<Code> CallStubCompiler::CompileMathAbsCall( |
| 2339 | Handle<Object> object, |
| 2340 | Handle<JSObject> holder, |
| 2341 | Handle<JSGlobalPropertyCell> cell, |
| 2342 | Handle<JSFunction> function, |
| 2343 | Handle<String> name) { |
kmillikin@chromium.org | f05f291 | 2010-09-30 10:07:24 +0000 | [diff] [blame] | 2344 | // ----------- S t a t e ------------- |
| 2345 | // -- r2 : function name |
| 2346 | // -- lr : return address |
| 2347 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero-based) |
| 2348 | // -- ... |
| 2349 | // -- sp[argc * 4] : receiver |
| 2350 | // ----------------------------------- |
| 2351 | |
| 2352 | const int argc = arguments().immediate(); |
kmillikin@chromium.org | f05f291 | 2010-09-30 10:07:24 +0000 | [diff] [blame] | 2353 | // If the object is not a JSObject or we got an unexpected number of |
| 2354 | // arguments, bail out to the regular call. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2355 | if (!object->IsJSObject() || argc != 1) return Handle<Code>::null(); |
kmillikin@chromium.org | f05f291 | 2010-09-30 10:07:24 +0000 | [diff] [blame] | 2356 | |
| 2357 | Label miss; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2358 | GenerateNameCheck(name, &miss); |
| 2359 | if (cell.is_null()) { |
kmillikin@chromium.org | f05f291 | 2010-09-30 10:07:24 +0000 | [diff] [blame] | 2360 | __ ldr(r1, MemOperand(sp, 1 * kPointerSize)); |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 2361 | __ JumpIfSmi(r1, &miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2362 | CheckPrototypes(Handle<JSObject>::cast(object), r1, holder, r0, r3, r4, |
| 2363 | name, &miss); |
kmillikin@chromium.org | f05f291 | 2010-09-30 10:07:24 +0000 | [diff] [blame] | 2364 | } else { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2365 | ASSERT(cell->value() == *function); |
| 2366 | GenerateGlobalReceiverCheck(Handle<JSObject>::cast(object), holder, name, |
| 2367 | &miss); |
kmillikin@chromium.org | f05f291 | 2010-09-30 10:07:24 +0000 | [diff] [blame] | 2368 | GenerateLoadFunctionFromCell(cell, function, &miss); |
| 2369 | } |
| 2370 | |
| 2371 | // Load the (only) argument into r0. |
| 2372 | __ ldr(r0, MemOperand(sp, 0 * kPointerSize)); |
| 2373 | |
| 2374 | // Check if the argument is a smi. |
| 2375 | Label not_smi; |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 2376 | __ JumpIfNotSmi(r0, ¬_smi); |
kmillikin@chromium.org | f05f291 | 2010-09-30 10:07:24 +0000 | [diff] [blame] | 2377 | |
| 2378 | // Do bitwise not or do nothing depending on the sign of the |
| 2379 | // argument. |
| 2380 | __ eor(r1, r0, Operand(r0, ASR, kBitsPerInt - 1)); |
| 2381 | |
| 2382 | // Add 1 or do nothing depending on the sign of the argument. |
| 2383 | __ sub(r0, r1, Operand(r0, ASR, kBitsPerInt - 1), SetCC); |
| 2384 | |
| 2385 | // If the result is still negative, go to the slow case. |
| 2386 | // This only happens for the most negative smi. |
| 2387 | Label slow; |
| 2388 | __ b(mi, &slow); |
| 2389 | |
| 2390 | // Smi case done. |
| 2391 | __ Drop(argc + 1); |
| 2392 | __ Ret(); |
| 2393 | |
| 2394 | // Check if the argument is a heap number and load its exponent and |
| 2395 | // sign. |
| 2396 | __ bind(¬_smi); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2397 | __ CheckMap(r0, r1, Heap::kHeapNumberMapRootIndex, &slow, DONT_DO_SMI_CHECK); |
kmillikin@chromium.org | f05f291 | 2010-09-30 10:07:24 +0000 | [diff] [blame] | 2398 | __ ldr(r1, FieldMemOperand(r0, HeapNumber::kExponentOffset)); |
| 2399 | |
| 2400 | // Check the sign of the argument. If the argument is positive, |
| 2401 | // just return it. |
| 2402 | Label negative_sign; |
| 2403 | __ tst(r1, Operand(HeapNumber::kSignMask)); |
| 2404 | __ b(ne, &negative_sign); |
| 2405 | __ Drop(argc + 1); |
| 2406 | __ Ret(); |
| 2407 | |
| 2408 | // If the argument is negative, clear the sign, and return a new |
| 2409 | // number. |
| 2410 | __ bind(&negative_sign); |
| 2411 | __ eor(r1, r1, Operand(HeapNumber::kSignMask)); |
| 2412 | __ ldr(r3, FieldMemOperand(r0, HeapNumber::kMantissaOffset)); |
| 2413 | __ LoadRoot(r6, Heap::kHeapNumberMapRootIndex); |
| 2414 | __ AllocateHeapNumber(r0, r4, r5, r6, &slow); |
| 2415 | __ str(r1, FieldMemOperand(r0, HeapNumber::kExponentOffset)); |
| 2416 | __ str(r3, FieldMemOperand(r0, HeapNumber::kMantissaOffset)); |
| 2417 | __ Drop(argc + 1); |
| 2418 | __ Ret(); |
| 2419 | |
| 2420 | // Tail call the full function. We do not have to patch the receiver |
| 2421 | // because the function makes no use of it. |
| 2422 | __ bind(&slow); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 2423 | ParameterCount expected(function); |
| 2424 | __ InvokeFunction(function, expected, arguments(), |
| 2425 | JUMP_FUNCTION, NullCallWrapper(), CALL_AS_METHOD); |
kmillikin@chromium.org | f05f291 | 2010-09-30 10:07:24 +0000 | [diff] [blame] | 2426 | |
| 2427 | __ bind(&miss); |
| 2428 | // r2: function name. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2429 | GenerateMissBranch(); |
kmillikin@chromium.org | f05f291 | 2010-09-30 10:07:24 +0000 | [diff] [blame] | 2430 | |
| 2431 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 2432 | return cell.is_null() ? GetCode(function) : GetCode(Code::NORMAL, name); |
kmillikin@chromium.org | f05f291 | 2010-09-30 10:07:24 +0000 | [diff] [blame] | 2433 | } |
| 2434 | |
| 2435 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2436 | Handle<Code> CallStubCompiler::CompileFastApiCall( |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2437 | const CallOptimization& optimization, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2438 | Handle<Object> object, |
| 2439 | Handle<JSObject> holder, |
| 2440 | Handle<JSGlobalPropertyCell> cell, |
| 2441 | Handle<JSFunction> function, |
| 2442 | Handle<String> name) { |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2443 | Counters* counters = isolate()->counters(); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2444 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2445 | ASSERT(optimization.is_simple_api_call()); |
| 2446 | // Bail out if object is a global object as we don't want to |
| 2447 | // repatch it to global receiver. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2448 | if (object->IsGlobalObject()) return Handle<Code>::null(); |
| 2449 | if (!cell.is_null()) return Handle<Code>::null(); |
| 2450 | if (!object->IsJSObject()) return Handle<Code>::null(); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2451 | int depth = optimization.GetPrototypeDepthOfExpectedType( |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2452 | Handle<JSObject>::cast(object), holder); |
| 2453 | if (depth == kInvalidProtoDepth) return Handle<Code>::null(); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2454 | |
| 2455 | Label miss, miss_before_stack_reserved; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2456 | GenerateNameCheck(name, &miss_before_stack_reserved); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2457 | |
| 2458 | // Get the receiver from the stack. |
| 2459 | const int argc = arguments().immediate(); |
| 2460 | __ ldr(r1, MemOperand(sp, argc * kPointerSize)); |
| 2461 | |
| 2462 | // Check that the receiver isn't a smi. |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 2463 | __ JumpIfSmi(r1, &miss_before_stack_reserved); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2464 | |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2465 | __ IncrementCounter(counters->call_const(), 1, r0, r3); |
| 2466 | __ IncrementCounter(counters->call_const_fast_api(), 1, r0, r3); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2467 | |
| 2468 | ReserveSpaceForFastApiCall(masm(), r0); |
| 2469 | |
| 2470 | // 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] | 2471 | CheckPrototypes(Handle<JSObject>::cast(object), r1, holder, r0, r3, r4, name, |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2472 | depth, &miss); |
| 2473 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2474 | GenerateFastApiDirectCall(masm(), optimization, argc); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2475 | |
| 2476 | __ bind(&miss); |
| 2477 | FreeSpaceForFastApiCall(masm()); |
| 2478 | |
| 2479 | __ bind(&miss_before_stack_reserved); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2480 | GenerateMissBranch(); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2481 | |
| 2482 | // Return the generated code. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2483 | return GetCode(function); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2484 | } |
| 2485 | |
| 2486 | |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2487 | void CallStubCompiler::CompileHandlerFrontend(Handle<Object> object, |
| 2488 | Handle<JSObject> holder, |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 2489 | Handle<Name> name, |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2490 | CheckType check, |
| 2491 | Label* success) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2492 | // ----------- S t a t e ------------- |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2493 | // -- r2 : name |
| 2494 | // -- lr : return address |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2495 | // ----------------------------------- |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2496 | Label miss; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2497 | GenerateNameCheck(name, &miss); |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 2498 | |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 2499 | // Get the receiver from the stack |
| 2500 | const int argc = arguments().immediate(); |
| 2501 | __ ldr(r1, MemOperand(sp, argc * kPointerSize)); |
| 2502 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2503 | // Check that the receiver isn't a smi. |
| 2504 | if (check != NUMBER_CHECK) { |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 2505 | __ JumpIfSmi(r1, &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2506 | } |
| 2507 | |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 2508 | // Make sure that it's okay not to patch the on stack receiver |
| 2509 | // unless we're doing a receiver map check. |
| 2510 | ASSERT(!object->IsGlobalObject() || check == RECEIVER_MAP_CHECK); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2511 | switch (check) { |
| 2512 | case RECEIVER_MAP_CHECK: |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 2513 | __ IncrementCounter(isolate()->counters()->call_const(), 1, r0, r3); |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 2514 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2515 | // Check that the maps haven't changed. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2516 | CheckPrototypes(Handle<JSObject>::cast(object), r1, holder, r0, r3, r4, |
| 2517 | name, &miss); |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 2518 | |
| 2519 | // Patch the receiver on the stack with the global proxy if |
| 2520 | // necessary. |
| 2521 | if (object->IsGlobalObject()) { |
| 2522 | __ ldr(r3, FieldMemOperand(r1, GlobalObject::kGlobalReceiverOffset)); |
| 2523 | __ str(r3, MemOperand(sp, argc * kPointerSize)); |
| 2524 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2525 | break; |
| 2526 | |
| 2527 | case STRING_CHECK: |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 2528 | // Check that the object is a string. |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2529 | __ CompareObjectType(r1, r3, r3, FIRST_NONSTRING_TYPE); |
| 2530 | __ b(ge, &miss); |
| 2531 | // Check that the maps starting from the prototype haven't changed. |
| 2532 | GenerateDirectLoadGlobalFunctionPrototype( |
| 2533 | masm(), Context::STRING_FUNCTION_INDEX, r0, &miss); |
| 2534 | CheckPrototypes( |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 2535 | Handle<JSObject>(JSObject::cast(object->GetPrototype(isolate()))), |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2536 | r0, holder, r3, r1, r4, name, &miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2537 | break; |
| 2538 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 2539 | case SYMBOL_CHECK: |
| 2540 | // Check that the object is a symbol. |
| 2541 | __ CompareObjectType(r1, r1, r3, SYMBOL_TYPE); |
| 2542 | __ b(ne, &miss); |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 2543 | // Check that the maps starting from the prototype haven't changed. |
| 2544 | GenerateDirectLoadGlobalFunctionPrototype( |
| 2545 | masm(), Context::SYMBOL_FUNCTION_INDEX, r0, &miss); |
| 2546 | CheckPrototypes( |
| 2547 | Handle<JSObject>(JSObject::cast(object->GetPrototype(isolate()))), |
| 2548 | r0, holder, r3, r1, r4, name, &miss); |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 2549 | break; |
| 2550 | |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2551 | case NUMBER_CHECK: { |
| 2552 | Label fast; |
| 2553 | // Check that the object is a smi or a heap number. |
| 2554 | __ JumpIfSmi(r1, &fast); |
| 2555 | __ CompareObjectType(r1, r0, r0, HEAP_NUMBER_TYPE); |
| 2556 | __ b(ne, &miss); |
| 2557 | __ bind(&fast); |
| 2558 | // Check that the maps starting from the prototype haven't changed. |
| 2559 | GenerateDirectLoadGlobalFunctionPrototype( |
| 2560 | masm(), Context::NUMBER_FUNCTION_INDEX, r0, &miss); |
| 2561 | CheckPrototypes( |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 2562 | Handle<JSObject>(JSObject::cast(object->GetPrototype(isolate()))), |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2563 | r0, holder, r3, r1, r4, name, &miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2564 | break; |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2565 | } |
| 2566 | case BOOLEAN_CHECK: { |
| 2567 | Label fast; |
| 2568 | // Check that the object is a boolean. |
| 2569 | __ LoadRoot(ip, Heap::kTrueValueRootIndex); |
| 2570 | __ cmp(r1, ip); |
| 2571 | __ b(eq, &fast); |
| 2572 | __ LoadRoot(ip, Heap::kFalseValueRootIndex); |
| 2573 | __ cmp(r1, ip); |
| 2574 | __ b(ne, &miss); |
| 2575 | __ bind(&fast); |
| 2576 | // Check that the maps starting from the prototype haven't changed. |
| 2577 | GenerateDirectLoadGlobalFunctionPrototype( |
| 2578 | masm(), Context::BOOLEAN_FUNCTION_INDEX, r0, &miss); |
| 2579 | CheckPrototypes( |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 2580 | Handle<JSObject>(JSObject::cast(object->GetPrototype(isolate()))), |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2581 | r0, holder, r3, r1, r4, name, &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2582 | break; |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2583 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2584 | } |
| 2585 | |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2586 | __ b(success); |
| 2587 | |
| 2588 | // Handle call cache miss. |
| 2589 | __ bind(&miss); |
| 2590 | GenerateMissBranch(); |
| 2591 | } |
| 2592 | |
| 2593 | |
| 2594 | void CallStubCompiler::CompileHandlerBackend(Handle<JSFunction> function) { |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2595 | CallKind call_kind = CallICBase::Contextual::decode(extra_state_) |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 2596 | ? CALL_AS_FUNCTION |
| 2597 | : CALL_AS_METHOD; |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 2598 | ParameterCount expected(function); |
| 2599 | __ InvokeFunction(function, expected, arguments(), |
| 2600 | JUMP_FUNCTION, NullCallWrapper(), call_kind); |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2601 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2602 | |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2603 | |
| 2604 | Handle<Code> CallStubCompiler::CompileCallConstant( |
| 2605 | Handle<Object> object, |
| 2606 | Handle<JSObject> holder, |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 2607 | Handle<Name> name, |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2608 | CheckType check, |
| 2609 | Handle<JSFunction> function) { |
| 2610 | if (HasCustomCallGenerator(function)) { |
| 2611 | Handle<Code> code = CompileCustomCall(object, holder, |
| 2612 | Handle<JSGlobalPropertyCell>::null(), |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 2613 | function, Handle<String>::cast(name)); |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2614 | // A null handle means bail out to the regular compiler code below. |
| 2615 | if (!code.is_null()) return code; |
| 2616 | } |
| 2617 | |
| 2618 | Label success; |
| 2619 | |
| 2620 | CompileHandlerFrontend(object, holder, name, check, &success); |
| 2621 | __ bind(&success); |
| 2622 | CompileHandlerBackend(function); |
| 2623 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2624 | // Return the generated code. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2625 | return GetCode(function); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2626 | } |
| 2627 | |
| 2628 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2629 | Handle<Code> CallStubCompiler::CompileCallInterceptor(Handle<JSObject> object, |
| 2630 | Handle<JSObject> holder, |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 2631 | Handle<Name> name) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2632 | // ----------- S t a t e ------------- |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2633 | // -- r2 : name |
| 2634 | // -- lr : return address |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2635 | // ----------------------------------- |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 2636 | Label miss; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2637 | GenerateNameCheck(name, &miss); |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 2638 | |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 2639 | // Get the number of arguments. |
| 2640 | const int argc = arguments().immediate(); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2641 | LookupResult lookup(isolate()); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 2642 | LookupPostInterceptor(holder, name, &lookup); |
| 2643 | |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 2644 | // Get the receiver from the stack. |
| 2645 | __ ldr(r1, MemOperand(sp, argc * kPointerSize)); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 2646 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2647 | CallInterceptorCompiler compiler(this, arguments(), r2, extra_state_); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2648 | compiler.Compile(masm(), object, holder, name, &lookup, r1, r3, r4, r0, |
| 2649 | &miss); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2650 | |
| 2651 | // Move returned value, the function to call, to r1. |
| 2652 | __ mov(r1, r0); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 2653 | // Restore receiver. |
kmillikin@chromium.org | 4111b80 | 2010-05-03 10:34:42 +0000 | [diff] [blame] | 2654 | __ ldr(r0, MemOperand(sp, argc * kPointerSize)); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 2655 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2656 | GenerateCallFunction(masm(), object, arguments(), &miss, extra_state_); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2657 | |
| 2658 | // Handle call cache miss. |
| 2659 | __ bind(&miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2660 | GenerateMissBranch(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2661 | |
| 2662 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 2663 | return GetCode(Code::INTERCEPTOR, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2664 | } |
| 2665 | |
| 2666 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2667 | Handle<Code> CallStubCompiler::CompileCallGlobal( |
| 2668 | Handle<JSObject> object, |
| 2669 | Handle<GlobalObject> holder, |
| 2670 | Handle<JSGlobalPropertyCell> cell, |
| 2671 | Handle<JSFunction> function, |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 2672 | Handle<Name> name) { |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 2673 | // ----------- S t a t e ------------- |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2674 | // -- r2 : name |
| 2675 | // -- lr : return address |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 2676 | // ----------------------------------- |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 2677 | if (HasCustomCallGenerator(function)) { |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 2678 | Handle<Code> code = CompileCustomCall( |
| 2679 | object, holder, cell, function, Handle<String>::cast(name)); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2680 | // A null handle means bail out to the regular compiler code below. |
| 2681 | if (!code.is_null()) return code; |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 2682 | } |
| 2683 | |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 2684 | Label miss; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2685 | GenerateNameCheck(name, &miss); |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 2686 | |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 2687 | // Get the number of arguments. |
| 2688 | const int argc = arguments().immediate(); |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 2689 | GenerateGlobalReceiverCheck(object, holder, name, &miss); |
sgjesse@chromium.org | 2ec107f | 2010-09-13 09:19:46 +0000 | [diff] [blame] | 2690 | GenerateLoadFunctionFromCell(cell, function, &miss); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 2691 | |
| 2692 | // Patch the receiver on the stack with the global proxy if |
| 2693 | // necessary. |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 2694 | if (object->IsGlobalObject()) { |
| 2695 | __ ldr(r3, FieldMemOperand(r0, GlobalObject::kGlobalReceiverOffset)); |
| 2696 | __ str(r3, MemOperand(sp, argc * kPointerSize)); |
| 2697 | } |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 2698 | |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 2699 | // Set up the context (function already in r1). |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 2700 | __ ldr(cp, FieldMemOperand(r1, JSFunction::kContextOffset)); |
| 2701 | |
| 2702 | // Jump to the cached code (tail call). |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 2703 | Counters* counters = isolate()->counters(); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2704 | __ IncrementCounter(counters->call_global_inline(), 1, r3, r4); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 2705 | ParameterCount expected(function->shared()->formal_parameter_count()); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2706 | CallKind call_kind = CallICBase::Contextual::decode(extra_state_) |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2707 | ? CALL_AS_FUNCTION |
| 2708 | : CALL_AS_METHOD; |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2709 | // We call indirectly through the code field in the function to |
| 2710 | // allow recompilation to take effect without changing any of the |
| 2711 | // call sites. |
| 2712 | __ ldr(r3, FieldMemOperand(r1, JSFunction::kCodeEntryOffset)); |
| 2713 | __ InvokeCode(r3, expected, arguments(), JUMP_FUNCTION, |
| 2714 | NullCallWrapper(), call_kind); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 2715 | |
| 2716 | // Handle call cache miss. |
| 2717 | __ bind(&miss); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 2718 | __ IncrementCounter(counters->call_global_inline_miss(), 1, r1, r3); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2719 | GenerateMissBranch(); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 2720 | |
| 2721 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 2722 | return GetCode(Code::NORMAL, name); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 2723 | } |
| 2724 | |
| 2725 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2726 | Handle<Code> StoreStubCompiler::CompileStoreCallback( |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 2727 | Handle<Name> name, |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2728 | Handle<JSObject> object, |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 2729 | Handle<JSObject> holder, |
hpayer@chromium.org | 7c3372b | 2013-02-13 17:26:04 +0000 | [diff] [blame] | 2730 | Handle<ExecutableAccessorInfo> callback) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2731 | Label miss; |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 2732 | // Check that the maps haven't changed. |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2733 | __ JumpIfSmi(receiver(), &miss); |
| 2734 | CheckPrototypes(object, receiver(), holder, |
| 2735 | scratch1(), scratch2(), scratch3(), name, &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2736 | |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 2737 | // Stub never generated for non-global objects that require access checks. |
| 2738 | ASSERT(holder->IsJSGlobalProxy() || !holder->IsAccessCheckNeeded()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2739 | |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2740 | __ push(receiver()); // receiver |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2741 | __ mov(ip, Operand(callback)); // callback info |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2742 | __ Push(ip, this->name(), value()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2743 | |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 2744 | // Do tail-call to the runtime system. |
| 2745 | ExternalReference store_callback_property = |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 2746 | ExternalReference(IC_Utility(IC::kStoreCallbackProperty), isolate()); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 2747 | __ TailCallExternalReference(store_callback_property, 4, 1); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2748 | |
| 2749 | // Handle store cache miss. |
| 2750 | __ bind(&miss); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2751 | TailCallBuiltin(masm(), MissBuiltin(kind())); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2752 | |
| 2753 | // Return the generated code. |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2754 | return GetICCode(kind(), Code::CALLBACKS, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2755 | } |
| 2756 | |
| 2757 | |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 2758 | #undef __ |
| 2759 | #define __ ACCESS_MASM(masm) |
| 2760 | |
| 2761 | |
| 2762 | void StoreStubCompiler::GenerateStoreViaSetter( |
| 2763 | MacroAssembler* masm, |
| 2764 | Handle<JSFunction> setter) { |
| 2765 | // ----------- S t a t e ------------- |
| 2766 | // -- r0 : value |
| 2767 | // -- r1 : receiver |
| 2768 | // -- r2 : name |
| 2769 | // -- lr : return address |
| 2770 | // ----------------------------------- |
| 2771 | { |
| 2772 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 2773 | |
| 2774 | // Save value register, so we can restore it later. |
| 2775 | __ push(r0); |
| 2776 | |
| 2777 | if (!setter.is_null()) { |
| 2778 | // Call the JavaScript setter with receiver and value on the stack. |
| 2779 | __ Push(r1, r0); |
| 2780 | ParameterCount actual(1); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 2781 | ParameterCount expected(setter); |
| 2782 | __ InvokeFunction(setter, expected, actual, |
| 2783 | CALL_FUNCTION, NullCallWrapper(), CALL_AS_METHOD); |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 2784 | } else { |
| 2785 | // If we generate a global code snippet for deoptimization only, remember |
| 2786 | // the place to continue after deoptimization. |
| 2787 | masm->isolate()->heap()->SetSetterStubDeoptPCOffset(masm->pc_offset()); |
| 2788 | } |
| 2789 | |
| 2790 | // We have to return the passed value, not the return value of the setter. |
| 2791 | __ pop(r0); |
| 2792 | |
| 2793 | // Restore context register. |
| 2794 | __ ldr(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
| 2795 | } |
| 2796 | __ Ret(); |
| 2797 | } |
| 2798 | |
| 2799 | |
| 2800 | #undef __ |
| 2801 | #define __ ACCESS_MASM(masm()) |
| 2802 | |
| 2803 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2804 | Handle<Code> StoreStubCompiler::CompileStoreInterceptor( |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2805 | Handle<JSObject> object, |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 2806 | Handle<Name> name) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2807 | Label miss; |
| 2808 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2809 | // Check that the map of the object hasn't changed. |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2810 | __ CheckMap(receiver(), scratch1(), Handle<Map>(object->map()), &miss, |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame^] | 2811 | DO_SMI_CHECK); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2812 | |
| 2813 | // Perform global security token check if needed. |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2814 | if (object->IsJSGlobalProxy()) { |
| 2815 | __ CheckAccessGlobalProxy(receiver(), scratch1(), &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2816 | } |
| 2817 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2818 | // Stub is never generated for non-global objects that require access |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2819 | // checks. |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2820 | ASSERT(object->IsJSGlobalProxy() || !object->IsAccessCheckNeeded()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2821 | |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2822 | __ Push(receiver(), this->name(), value()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2823 | |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2824 | __ mov(scratch1(), Operand(Smi::FromInt(strict_mode()))); |
| 2825 | __ push(scratch1()); // strict mode |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 2826 | |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 2827 | // Do tail-call to the runtime system. |
| 2828 | ExternalReference store_ic_property = |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 2829 | ExternalReference(IC_Utility(IC::kStoreInterceptorProperty), isolate()); |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 2830 | __ TailCallExternalReference(store_ic_property, 4, 1); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2831 | |
| 2832 | // Handle store cache miss. |
| 2833 | __ bind(&miss); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2834 | TailCallBuiltin(masm(), MissBuiltin(kind())); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2835 | |
| 2836 | // Return the generated code. |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2837 | return GetICCode(kind(), Code::INTERCEPTOR, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2838 | } |
| 2839 | |
| 2840 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2841 | Handle<Code> StoreStubCompiler::CompileStoreGlobal( |
| 2842 | Handle<GlobalObject> object, |
| 2843 | Handle<JSGlobalPropertyCell> cell, |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 2844 | Handle<Name> name) { |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 2845 | Label miss; |
| 2846 | |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 2847 | // Check that the map of the global has not changed. |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2848 | __ ldr(scratch1(), FieldMemOperand(receiver(), HeapObject::kMapOffset)); |
| 2849 | __ cmp(scratch1(), Operand(Handle<Map>(object->map()))); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 2850 | __ b(ne, &miss); |
| 2851 | |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 2852 | // Check that the value in the cell is not the hole. If it is, this |
| 2853 | // cell could have been deleted and reintroducing the global needs |
| 2854 | // to update the property details in the property dictionary of the |
| 2855 | // global object. We bail out to the runtime system to do that. |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2856 | __ mov(scratch1(), Operand(cell)); |
| 2857 | __ LoadRoot(scratch2(), Heap::kTheHoleValueRootIndex); |
| 2858 | __ ldr(scratch3(), |
| 2859 | FieldMemOperand(scratch1(), JSGlobalPropertyCell::kValueOffset)); |
| 2860 | __ cmp(scratch3(), scratch2()); |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 2861 | __ b(eq, &miss); |
| 2862 | |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 2863 | // Store the value in the cell. |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2864 | __ str(value(), |
| 2865 | FieldMemOperand(scratch1(), JSGlobalPropertyCell::kValueOffset)); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 2866 | // Cells are always rescanned, so no write barrier here. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 2867 | |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 2868 | Counters* counters = isolate()->counters(); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2869 | __ IncrementCounter( |
| 2870 | counters->named_store_global_inline(), 1, scratch1(), scratch2()); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 2871 | __ Ret(); |
| 2872 | |
| 2873 | // Handle store cache miss. |
| 2874 | __ bind(&miss); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2875 | __ IncrementCounter( |
| 2876 | counters->named_store_global_inline_miss(), 1, scratch1(), scratch2()); |
| 2877 | TailCallBuiltin(masm(), MissBuiltin(kind())); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 2878 | |
| 2879 | // Return the generated code. |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2880 | return GetICCode(kind(), Code::NORMAL, name); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 2881 | } |
| 2882 | |
| 2883 | |
mstarzinger@chromium.org | e3b8d0f | 2013-02-01 09:06:41 +0000 | [diff] [blame] | 2884 | Handle<Code> LoadStubCompiler::CompileLoadNonexistent( |
mstarzinger@chromium.org | e3b8d0f | 2013-02-01 09:06:41 +0000 | [diff] [blame] | 2885 | Handle<JSObject> object, |
| 2886 | Handle<JSObject> last, |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 2887 | Handle<Name> name, |
mstarzinger@chromium.org | e3b8d0f | 2013-02-01 09:06:41 +0000 | [diff] [blame] | 2888 | Handle<GlobalObject> global) { |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 2889 | Label success; |
ricow@chromium.org | c9c8082 | 2010-04-21 08:22:37 +0000 | [diff] [blame] | 2890 | |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 2891 | NonexistentHandlerFrontend(object, last, name, &success, global); |
ricow@chromium.org | c9c8082 | 2010-04-21 08:22:37 +0000 | [diff] [blame] | 2892 | |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 2893 | __ bind(&success); |
ricow@chromium.org | c9c8082 | 2010-04-21 08:22:37 +0000 | [diff] [blame] | 2894 | // Return undefined if maps of the full prototype chain are still the |
| 2895 | // same and no global property with this name contains a value. |
| 2896 | __ LoadRoot(r0, Heap::kUndefinedValueRootIndex); |
| 2897 | __ Ret(); |
| 2898 | |
ricow@chromium.org | c9c8082 | 2010-04-21 08:22:37 +0000 | [diff] [blame] | 2899 | // Return the generated code. |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 2900 | return GetCode(kind(), Code::NONEXISTENT, name); |
ricow@chromium.org | c9c8082 | 2010-04-21 08:22:37 +0000 | [diff] [blame] | 2901 | } |
| 2902 | |
| 2903 | |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 2904 | Register* LoadStubCompiler::registers() { |
| 2905 | // receiver, name, scratch1, scratch2, scratch3, scratch4. |
| 2906 | static Register registers[] = { r0, r2, r3, r1, r4, r5 }; |
| 2907 | return registers; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2908 | } |
| 2909 | |
| 2910 | |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 2911 | Register* KeyedLoadStubCompiler::registers() { |
| 2912 | // receiver, name, scratch1, scratch2, scratch3, scratch4. |
| 2913 | static Register registers[] = { r1, r0, r2, r3, r4, r5 }; |
| 2914 | return registers; |
| 2915 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2916 | |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 2917 | |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2918 | Register* StoreStubCompiler::registers() { |
| 2919 | // receiver, name, value, scratch1, scratch2, scratch3. |
| 2920 | static Register registers[] = { r1, r2, r0, r3, r4, r5 }; |
| 2921 | return registers; |
| 2922 | } |
| 2923 | |
| 2924 | |
| 2925 | Register* KeyedStoreStubCompiler::registers() { |
| 2926 | // receiver, name, value, scratch1, scratch2, scratch3. |
| 2927 | static Register registers[] = { r2, r1, r0, r3, r4, r5 }; |
| 2928 | return registers; |
| 2929 | } |
| 2930 | |
| 2931 | |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 2932 | void KeyedLoadStubCompiler::GenerateNameCheck(Handle<Name> name, |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 2933 | Register name_reg, |
| 2934 | Label* miss) { |
| 2935 | __ cmp(name_reg, Operand(name)); |
| 2936 | __ b(ne, miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2937 | } |
| 2938 | |
| 2939 | |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2940 | void KeyedStoreStubCompiler::GenerateNameCheck(Handle<Name> name, |
| 2941 | Register name_reg, |
| 2942 | Label* miss) { |
| 2943 | __ cmp(name_reg, Operand(name)); |
| 2944 | __ b(ne, miss); |
| 2945 | } |
| 2946 | |
| 2947 | |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 2948 | #undef __ |
| 2949 | #define __ ACCESS_MASM(masm) |
| 2950 | |
| 2951 | |
| 2952 | void LoadStubCompiler::GenerateLoadViaGetter(MacroAssembler* masm, |
| 2953 | Handle<JSFunction> getter) { |
| 2954 | // ----------- S t a t e ------------- |
| 2955 | // -- r0 : receiver |
| 2956 | // -- r2 : name |
| 2957 | // -- lr : return address |
| 2958 | // ----------------------------------- |
| 2959 | { |
| 2960 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 2961 | |
| 2962 | if (!getter.is_null()) { |
| 2963 | // Call the JavaScript getter with the receiver on the stack. |
| 2964 | __ push(r0); |
| 2965 | ParameterCount actual(0); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 2966 | ParameterCount expected(getter); |
| 2967 | __ InvokeFunction(getter, expected, actual, |
| 2968 | CALL_FUNCTION, NullCallWrapper(), CALL_AS_METHOD); |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 2969 | } else { |
| 2970 | // If we generate a global code snippet for deoptimization only, remember |
| 2971 | // the place to continue after deoptimization. |
| 2972 | masm->isolate()->heap()->SetGetterStubDeoptPCOffset(masm->pc_offset()); |
| 2973 | } |
| 2974 | |
| 2975 | // Restore context register. |
| 2976 | __ ldr(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
| 2977 | } |
| 2978 | __ Ret(); |
| 2979 | } |
| 2980 | |
| 2981 | |
| 2982 | #undef __ |
| 2983 | #define __ ACCESS_MASM(masm()) |
| 2984 | |
| 2985 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2986 | Handle<Code> LoadStubCompiler::CompileLoadGlobal( |
| 2987 | Handle<JSObject> object, |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 2988 | Handle<GlobalObject> global, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2989 | Handle<JSGlobalPropertyCell> cell, |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 2990 | Handle<Name> name, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2991 | bool is_dont_delete) { |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 2992 | Label success, miss; |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 2993 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 2994 | __ CheckMap( |
| 2995 | receiver(), scratch1(), Handle<Map>(object->map()), &miss, DO_SMI_CHECK); |
| 2996 | HandlerFrontendHeader( |
| 2997 | object, receiver(), Handle<JSObject>::cast(global), name, &miss); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 2998 | |
| 2999 | // Get the value from the cell. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 3000 | __ mov(r3, Operand(cell)); |
lrn@chromium.org | c34f580 | 2010-04-28 12:53:43 +0000 | [diff] [blame] | 3001 | __ ldr(r4, FieldMemOperand(r3, JSGlobalPropertyCell::kValueOffset)); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 3002 | |
| 3003 | // Check for deleted property if property can actually be deleted. |
| 3004 | if (!is_dont_delete) { |
ager@chromium.org | ab99eea | 2009-08-25 07:05:41 +0000 | [diff] [blame] | 3005 | __ LoadRoot(ip, Heap::kTheHoleValueRootIndex); |
lrn@chromium.org | c34f580 | 2010-04-28 12:53:43 +0000 | [diff] [blame] | 3006 | __ cmp(r4, ip); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 3007 | __ b(eq, &miss); |
| 3008 | } |
| 3009 | |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 3010 | HandlerFrontendFooter(&success, &miss); |
| 3011 | __ bind(&success); |
| 3012 | |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 3013 | Counters* counters = isolate()->counters(); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 3014 | __ IncrementCounter(counters->named_load_global_stub(), 1, r1, r3); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 3015 | __ mov(r0, r4); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 3016 | __ Ret(); |
| 3017 | |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 3018 | // Return the generated code. |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 3019 | return GetICCode(kind(), Code::NORMAL, name); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 3020 | } |
| 3021 | |
| 3022 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 3023 | Handle<Code> BaseLoadStubCompiler::CompilePolymorphicIC( |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 3024 | MapHandleList* receiver_maps, |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 3025 | CodeHandleList* handlers, |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 3026 | Handle<Name> name, |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 3027 | Code::StubType type, |
| 3028 | IcCheckType check) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3029 | Label miss; |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 3030 | |
| 3031 | if (check == PROPERTY) { |
| 3032 | GenerateNameCheck(name, this->name(), &miss); |
| 3033 | } |
| 3034 | |
| 3035 | __ JumpIfSmi(receiver(), &miss); |
| 3036 | Register map_reg = scratch1(); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3037 | |
ager@chromium.org | ea91cc5 | 2011-05-23 06:06:11 +0000 | [diff] [blame] | 3038 | int receiver_count = receiver_maps->length(); |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 3039 | int number_of_handled_maps = 0; |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 3040 | __ ldr(map_reg, FieldMemOperand(receiver(), HeapObject::kMapOffset)); |
ager@chromium.org | ea91cc5 | 2011-05-23 06:06:11 +0000 | [diff] [blame] | 3041 | for (int current = 0; current < receiver_count; ++current) { |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 3042 | Handle<Map> map = receiver_maps->at(current); |
| 3043 | if (!map->is_deprecated()) { |
| 3044 | number_of_handled_maps++; |
| 3045 | __ mov(ip, Operand(receiver_maps->at(current))); |
| 3046 | __ cmp(map_reg, ip); |
| 3047 | __ Jump(handlers->at(current), RelocInfo::CODE_TARGET, eq); |
| 3048 | } |
ager@chromium.org | ea91cc5 | 2011-05-23 06:06:11 +0000 | [diff] [blame] | 3049 | } |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 3050 | ASSERT(number_of_handled_maps != 0); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3051 | |
| 3052 | __ bind(&miss); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3053 | TailCallBuiltin(masm(), MissBuiltin(kind())); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3054 | |
| 3055 | // Return the generated code. |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 3056 | InlineCacheState state = |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 3057 | number_of_handled_maps > 1 ? POLYMORPHIC : MONOMORPHIC; |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 3058 | return GetICCode(kind(), type, name, state); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 3059 | } |
| 3060 | |
| 3061 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 3062 | Handle<Code> KeyedStoreStubCompiler::CompileStorePolymorphic( |
| 3063 | MapHandleList* receiver_maps, |
| 3064 | CodeHandleList* handler_stubs, |
| 3065 | MapHandleList* transitioned_maps) { |
ager@chromium.org | ea91cc5 | 2011-05-23 06:06:11 +0000 | [diff] [blame] | 3066 | Label miss; |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3067 | __ JumpIfSmi(receiver(), &miss); |
ager@chromium.org | ea91cc5 | 2011-05-23 06:06:11 +0000 | [diff] [blame] | 3068 | |
| 3069 | int receiver_count = receiver_maps->length(); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3070 | __ ldr(scratch1(), FieldMemOperand(receiver(), HeapObject::kMapOffset)); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3071 | for (int i = 0; i < receiver_count; ++i) { |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 3072 | __ mov(ip, Operand(receiver_maps->at(i))); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3073 | __ cmp(scratch1(), ip); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 3074 | if (transitioned_maps->at(i).is_null()) { |
| 3075 | __ Jump(handler_stubs->at(i), RelocInfo::CODE_TARGET, eq); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3076 | } else { |
| 3077 | Label next_map; |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 3078 | __ b(ne, &next_map); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3079 | __ mov(transition_map(), Operand(transitioned_maps->at(i))); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 3080 | __ Jump(handler_stubs->at(i), RelocInfo::CODE_TARGET, al); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3081 | __ bind(&next_map); |
| 3082 | } |
ager@chromium.org | ea91cc5 | 2011-05-23 06:06:11 +0000 | [diff] [blame] | 3083 | } |
| 3084 | |
| 3085 | __ bind(&miss); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3086 | TailCallBuiltin(masm(), MissBuiltin(kind())); |
ager@chromium.org | ea91cc5 | 2011-05-23 06:06:11 +0000 | [diff] [blame] | 3087 | |
| 3088 | // Return the generated code. |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3089 | return GetICCode( |
| 3090 | kind(), Code::NORMAL, factory()->empty_string(), POLYMORPHIC); |
ager@chromium.org | ea91cc5 | 2011-05-23 06:06:11 +0000 | [diff] [blame] | 3091 | } |
| 3092 | |
| 3093 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3094 | Handle<Code> ConstructStubCompiler::CompileConstructStub( |
| 3095 | Handle<JSFunction> function) { |
ager@chromium.org | a1645e2 | 2009-09-09 19:27:10 +0000 | [diff] [blame] | 3096 | // ----------- S t a t e ------------- |
| 3097 | // -- r0 : argc |
| 3098 | // -- r1 : constructor |
| 3099 | // -- lr : return address |
| 3100 | // -- [sp] : last argument |
| 3101 | // ----------------------------------- |
| 3102 | Label generic_stub_call; |
| 3103 | |
| 3104 | // Use r7 for holding undefined which is used in several places below. |
| 3105 | __ LoadRoot(r7, Heap::kUndefinedValueRootIndex); |
| 3106 | |
| 3107 | #ifdef ENABLE_DEBUGGER_SUPPORT |
| 3108 | // Check to see whether there are any break points in the function code. If |
| 3109 | // there are jump to the generic constructor stub which calls the actual |
| 3110 | // code for the function thereby hitting the break points. |
| 3111 | __ ldr(r2, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset)); |
| 3112 | __ ldr(r2, FieldMemOperand(r2, SharedFunctionInfo::kDebugInfoOffset)); |
| 3113 | __ cmp(r2, r7); |
| 3114 | __ b(ne, &generic_stub_call); |
| 3115 | #endif |
| 3116 | |
| 3117 | // Load the initial map and verify that it is in fact a map. |
| 3118 | // r1: constructor function |
| 3119 | // r7: undefined |
| 3120 | __ ldr(r2, FieldMemOperand(r1, JSFunction::kPrototypeOrInitialMapOffset)); |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 3121 | __ JumpIfSmi(r2, &generic_stub_call); |
ager@chromium.org | a1645e2 | 2009-09-09 19:27:10 +0000 | [diff] [blame] | 3122 | __ CompareObjectType(r2, r3, r4, MAP_TYPE); |
| 3123 | __ b(ne, &generic_stub_call); |
| 3124 | |
| 3125 | #ifdef DEBUG |
| 3126 | // Cannot construct functions this way. |
| 3127 | // r0: argc |
| 3128 | // r1: constructor function |
| 3129 | // r2: initial map |
| 3130 | // r7: undefined |
| 3131 | __ CompareInstanceType(r2, r3, JS_FUNCTION_TYPE); |
| 3132 | __ Check(ne, "Function constructed by construct stub."); |
| 3133 | #endif |
| 3134 | |
| 3135 | // Now allocate the JSObject in new space. |
| 3136 | // r0: argc |
| 3137 | // r1: constructor function |
| 3138 | // r2: initial map |
| 3139 | // r7: undefined |
mvstanton@chromium.org | e4ac3ef | 2012-11-12 14:53:34 +0000 | [diff] [blame] | 3140 | ASSERT(function->has_initial_map()); |
ager@chromium.org | a1645e2 | 2009-09-09 19:27:10 +0000 | [diff] [blame] | 3141 | __ ldrb(r3, FieldMemOperand(r2, Map::kInstanceSizeOffset)); |
mvstanton@chromium.org | e4ac3ef | 2012-11-12 14:53:34 +0000 | [diff] [blame] | 3142 | #ifdef DEBUG |
| 3143 | int instance_size = function->initial_map()->instance_size(); |
| 3144 | __ cmp(r3, Operand(instance_size >> kPointerSizeLog2)); |
| 3145 | __ Check(eq, "Instance size of initial map changed."); |
| 3146 | #endif |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 3147 | __ Allocate(r3, r4, r5, r6, &generic_stub_call, SIZE_IN_WORDS); |
ager@chromium.org | a1645e2 | 2009-09-09 19:27:10 +0000 | [diff] [blame] | 3148 | |
| 3149 | // Allocated the JSObject, now initialize the fields. Map is set to initial |
| 3150 | // map and properties and elements are set to empty fixed array. |
| 3151 | // r0: argc |
| 3152 | // r1: constructor function |
| 3153 | // r2: initial map |
| 3154 | // r3: object size (in words) |
| 3155 | // r4: JSObject (not tagged) |
| 3156 | // r7: undefined |
| 3157 | __ LoadRoot(r6, Heap::kEmptyFixedArrayRootIndex); |
| 3158 | __ mov(r5, r4); |
| 3159 | ASSERT_EQ(0 * kPointerSize, JSObject::kMapOffset); |
| 3160 | __ str(r2, MemOperand(r5, kPointerSize, PostIndex)); |
| 3161 | ASSERT_EQ(1 * kPointerSize, JSObject::kPropertiesOffset); |
| 3162 | __ str(r6, MemOperand(r5, kPointerSize, PostIndex)); |
| 3163 | ASSERT_EQ(2 * kPointerSize, JSObject::kElementsOffset); |
| 3164 | __ str(r6, MemOperand(r5, kPointerSize, PostIndex)); |
| 3165 | |
| 3166 | // Calculate the location of the first argument. The stack contains only the |
| 3167 | // argc arguments. |
| 3168 | __ add(r1, sp, Operand(r0, LSL, kPointerSizeLog2)); |
| 3169 | |
| 3170 | // Fill all the in-object properties with undefined. |
| 3171 | // r0: argc |
| 3172 | // r1: first argument |
| 3173 | // r3: object size (in words) |
| 3174 | // r4: JSObject (not tagged) |
| 3175 | // r5: First in-object property of JSObject (not tagged) |
| 3176 | // r7: undefined |
| 3177 | // Fill the initialized properties with a constant value or a passed argument |
| 3178 | // depending on the this.x = ...; assignment in the function. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 3179 | Handle<SharedFunctionInfo> shared(function->shared()); |
ager@chromium.org | a1645e2 | 2009-09-09 19:27:10 +0000 | [diff] [blame] | 3180 | for (int i = 0; i < shared->this_property_assignments_count(); i++) { |
| 3181 | if (shared->IsThisPropertyAssignmentArgument(i)) { |
| 3182 | Label not_passed, next; |
| 3183 | // Check if the argument assigned to the property is actually passed. |
| 3184 | int arg_number = shared->GetThisPropertyAssignmentArgument(i); |
| 3185 | __ cmp(r0, Operand(arg_number)); |
| 3186 | __ b(le, ¬_passed); |
| 3187 | // Argument passed - find it on the stack. |
| 3188 | __ ldr(r2, MemOperand(r1, (arg_number + 1) * -kPointerSize)); |
| 3189 | __ str(r2, MemOperand(r5, kPointerSize, PostIndex)); |
| 3190 | __ b(&next); |
| 3191 | __ bind(¬_passed); |
| 3192 | // Set the property to undefined. |
| 3193 | __ str(r7, MemOperand(r5, kPointerSize, PostIndex)); |
| 3194 | __ bind(&next); |
| 3195 | } else { |
| 3196 | // Set the property to the constant value. |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 3197 | Handle<Object> constant(shared->GetThisPropertyAssignmentConstant(i), |
| 3198 | isolate()); |
ager@chromium.org | a1645e2 | 2009-09-09 19:27:10 +0000 | [diff] [blame] | 3199 | __ mov(r2, Operand(constant)); |
| 3200 | __ str(r2, MemOperand(r5, kPointerSize, PostIndex)); |
| 3201 | } |
| 3202 | } |
| 3203 | |
| 3204 | // Fill the unused in-object property fields with undefined. |
| 3205 | for (int i = shared->this_property_assignments_count(); |
ager@chromium.org | beb2571 | 2010-11-29 08:02:25 +0000 | [diff] [blame] | 3206 | i < function->initial_map()->inobject_properties(); |
ager@chromium.org | a1645e2 | 2009-09-09 19:27:10 +0000 | [diff] [blame] | 3207 | i++) { |
| 3208 | __ str(r7, MemOperand(r5, kPointerSize, PostIndex)); |
| 3209 | } |
| 3210 | |
| 3211 | // r0: argc |
| 3212 | // r4: JSObject (not tagged) |
| 3213 | // Move argc to r1 and the JSObject to return to r0 and tag it. |
| 3214 | __ mov(r1, r0); |
| 3215 | __ mov(r0, r4); |
| 3216 | __ orr(r0, r0, Operand(kHeapObjectTag)); |
| 3217 | |
| 3218 | // r0: JSObject |
| 3219 | // r1: argc |
| 3220 | // Remove caller arguments and receiver from the stack and return. |
| 3221 | __ add(sp, sp, Operand(r1, LSL, kPointerSizeLog2)); |
| 3222 | __ add(sp, sp, Operand(kPointerSize)); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 3223 | Counters* counters = isolate()->counters(); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 3224 | __ IncrementCounter(counters->constructed_objects(), 1, r1, r2); |
| 3225 | __ IncrementCounter(counters->constructed_objects_stub(), 1, r1, r2); |
ager@chromium.org | a1645e2 | 2009-09-09 19:27:10 +0000 | [diff] [blame] | 3226 | __ Jump(lr); |
| 3227 | |
| 3228 | // Jump to the generic stub in case the specialized code cannot handle the |
| 3229 | // construction. |
| 3230 | __ bind(&generic_stub_call); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 3231 | Handle<Code> code = isolate()->builtins()->JSConstructStubGeneric(); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 3232 | __ Jump(code, RelocInfo::CODE_TARGET); |
ager@chromium.org | 18ad94b | 2009-09-02 08:22:29 +0000 | [diff] [blame] | 3233 | |
| 3234 | // Return the generated code. |
| 3235 | return GetCode(); |
| 3236 | } |
| 3237 | |
| 3238 | |
ager@chromium.org | ea91cc5 | 2011-05-23 06:06:11 +0000 | [diff] [blame] | 3239 | #undef __ |
| 3240 | #define __ ACCESS_MASM(masm) |
| 3241 | |
| 3242 | |
sgjesse@chromium.org | 6db8871 | 2011-07-11 11:41:22 +0000 | [diff] [blame] | 3243 | void KeyedLoadStubCompiler::GenerateLoadDictionaryElement( |
| 3244 | MacroAssembler* masm) { |
| 3245 | // ---------- S t a t e -------------- |
| 3246 | // -- lr : return address |
| 3247 | // -- r0 : key |
| 3248 | // -- r1 : receiver |
| 3249 | // ----------------------------------- |
| 3250 | Label slow, miss_force_generic; |
| 3251 | |
| 3252 | Register key = r0; |
| 3253 | Register receiver = r1; |
| 3254 | |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 3255 | __ UntagAndJumpIfNotSmi(r2, key, &miss_force_generic); |
sgjesse@chromium.org | 6db8871 | 2011-07-11 11:41:22 +0000 | [diff] [blame] | 3256 | __ ldr(r4, FieldMemOperand(receiver, JSObject::kElementsOffset)); |
| 3257 | __ LoadFromNumberDictionary(&slow, r4, key, r0, r2, r3, r5); |
| 3258 | __ Ret(); |
| 3259 | |
| 3260 | __ bind(&slow); |
| 3261 | __ IncrementCounter( |
| 3262 | masm->isolate()->counters()->keyed_load_external_array_slow(), |
| 3263 | 1, r2, r3); |
| 3264 | |
| 3265 | // ---------- S t a t e -------------- |
| 3266 | // -- lr : return address |
| 3267 | // -- r0 : key |
| 3268 | // -- r1 : receiver |
| 3269 | // ----------------------------------- |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3270 | TailCallBuiltin(masm, Builtins::kKeyedLoadIC_Slow); |
sgjesse@chromium.org | 6db8871 | 2011-07-11 11:41:22 +0000 | [diff] [blame] | 3271 | |
| 3272 | // Miss case, call the runtime. |
| 3273 | __ bind(&miss_force_generic); |
| 3274 | |
| 3275 | // ---------- S t a t e -------------- |
| 3276 | // -- lr : return address |
| 3277 | // -- r0 : key |
| 3278 | // -- r1 : receiver |
| 3279 | // ----------------------------------- |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3280 | TailCallBuiltin(masm, Builtins::kKeyedLoadIC_MissForceGeneric); |
sgjesse@chromium.org | 6db8871 | 2011-07-11 11:41:22 +0000 | [diff] [blame] | 3281 | } |
| 3282 | |
| 3283 | |
jkummerow@chromium.org | 28faa98 | 2012-04-13 09:58:30 +0000 | [diff] [blame] | 3284 | static void GenerateSmiKeyCheck(MacroAssembler* masm, |
| 3285 | Register key, |
| 3286 | Register scratch0, |
jkummerow@chromium.org | 28faa98 | 2012-04-13 09:58:30 +0000 | [diff] [blame] | 3287 | DwVfpRegister double_scratch0, |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 3288 | DwVfpRegister double_scratch1, |
jkummerow@chromium.org | 28faa98 | 2012-04-13 09:58:30 +0000 | [diff] [blame] | 3289 | Label* fail) { |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3290 | Label key_ok; |
| 3291 | // Check for smi or a smi inside a heap number. We convert the heap |
| 3292 | // number and check if the conversion is exact and fits into the smi |
| 3293 | // range. |
| 3294 | __ JumpIfSmi(key, &key_ok); |
| 3295 | __ CheckMap(key, |
| 3296 | scratch0, |
| 3297 | Heap::kHeapNumberMapRootIndex, |
| 3298 | fail, |
| 3299 | DONT_DO_SMI_CHECK); |
| 3300 | __ sub(ip, key, Operand(kHeapObjectTag)); |
| 3301 | __ vldr(double_scratch0, ip, HeapNumber::kValueOffset); |
| 3302 | __ TryDoubleToInt32Exact(scratch0, double_scratch0, double_scratch1); |
| 3303 | __ b(ne, fail); |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 3304 | __ TrySmiTag(key, scratch0, fail); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3305 | __ bind(&key_ok); |
jkummerow@chromium.org | 28faa98 | 2012-04-13 09:58:30 +0000 | [diff] [blame] | 3306 | } |
| 3307 | |
| 3308 | |
ager@chromium.org | ea91cc5 | 2011-05-23 06:06:11 +0000 | [diff] [blame] | 3309 | void KeyedStoreStubCompiler::GenerateStoreExternalArray( |
| 3310 | MacroAssembler* masm, |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3311 | ElementsKind elements_kind) { |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3312 | // ---------- S t a t e -------------- |
| 3313 | // -- r0 : value |
| 3314 | // -- r1 : key |
| 3315 | // -- r2 : receiver |
| 3316 | // -- lr : return address |
| 3317 | // ----------------------------------- |
ager@chromium.org | ea91cc5 | 2011-05-23 06:06:11 +0000 | [diff] [blame] | 3318 | Label slow, check_heap_number, miss_force_generic; |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3319 | |
| 3320 | // Register usage. |
| 3321 | Register value = r0; |
| 3322 | Register key = r1; |
| 3323 | Register receiver = r2; |
| 3324 | // r3 mostly holds the elements array or the destination external array. |
| 3325 | |
ager@chromium.org | ea91cc5 | 2011-05-23 06:06:11 +0000 | [diff] [blame] | 3326 | // This stub is meant to be tail-jumped to, the receiver must already |
| 3327 | // have been verified by the caller to not be a smi. |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3328 | |
jkummerow@chromium.org | 28faa98 | 2012-04-13 09:58:30 +0000 | [diff] [blame] | 3329 | // Check that the key is a smi or a heap number convertible to a smi. |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 3330 | GenerateSmiKeyCheck(masm, key, r4, d1, d2, &miss_force_generic); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3331 | |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 3332 | __ ldr(r3, FieldMemOperand(receiver, JSObject::kElementsOffset)); |
| 3333 | |
danno@chromium.org | 4d3fe4e | 2011-03-10 10:14:28 +0000 | [diff] [blame] | 3334 | // Check that the index is in range |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3335 | __ ldr(ip, FieldMemOperand(r3, ExternalArray::kLengthOffset)); |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 3336 | __ cmp(key, ip); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3337 | // Unsigned comparison catches both negative and too-large values. |
ager@chromium.org | ea91cc5 | 2011-05-23 06:06:11 +0000 | [diff] [blame] | 3338 | __ b(hs, &miss_force_generic); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3339 | |
| 3340 | // Handle both smis and HeapNumbers in the fast path. Go to the |
| 3341 | // runtime for all other kinds of values. |
| 3342 | // r3: external array. |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3343 | if (elements_kind == EXTERNAL_PIXEL_ELEMENTS) { |
danno@chromium.org | 4d3fe4e | 2011-03-10 10:14:28 +0000 | [diff] [blame] | 3344 | // Double to pixel conversion is only implemented in the runtime for now. |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 3345 | __ UntagAndJumpIfNotSmi(r5, value, &slow); |
danno@chromium.org | 4d3fe4e | 2011-03-10 10:14:28 +0000 | [diff] [blame] | 3346 | } else { |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 3347 | __ UntagAndJumpIfNotSmi(r5, value, &check_heap_number); |
danno@chromium.org | 4d3fe4e | 2011-03-10 10:14:28 +0000 | [diff] [blame] | 3348 | } |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3349 | __ ldr(r3, FieldMemOperand(r3, ExternalArray::kExternalPointerOffset)); |
| 3350 | |
| 3351 | // r3: base pointer of external storage. |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3352 | // r5: value (integer). |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 3353 | switch (elements_kind) { |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3354 | case EXTERNAL_PIXEL_ELEMENTS: |
danno@chromium.org | 4d3fe4e | 2011-03-10 10:14:28 +0000 | [diff] [blame] | 3355 | // Clamp the value to [0..255]. |
| 3356 | __ Usat(r5, 8, Operand(r5)); |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 3357 | __ strb(r5, MemOperand(r3, key, LSR, 1)); |
danno@chromium.org | 4d3fe4e | 2011-03-10 10:14:28 +0000 | [diff] [blame] | 3358 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3359 | case EXTERNAL_BYTE_ELEMENTS: |
| 3360 | case EXTERNAL_UNSIGNED_BYTE_ELEMENTS: |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 3361 | __ strb(r5, MemOperand(r3, key, LSR, 1)); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3362 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3363 | case EXTERNAL_SHORT_ELEMENTS: |
| 3364 | case EXTERNAL_UNSIGNED_SHORT_ELEMENTS: |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 3365 | __ strh(r5, MemOperand(r3, key, LSL, 0)); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3366 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3367 | case EXTERNAL_INT_ELEMENTS: |
| 3368 | case EXTERNAL_UNSIGNED_INT_ELEMENTS: |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 3369 | __ str(r5, MemOperand(r3, key, LSL, 1)); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3370 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3371 | case EXTERNAL_FLOAT_ELEMENTS: |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3372 | // Perform int-to-float conversion and store to memory. |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 3373 | __ SmiUntag(r4, key); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3374 | StoreIntAsFloat(masm, r3, r4, r5, r7); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3375 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3376 | case EXTERNAL_DOUBLE_ELEMENTS: |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 3377 | __ vmov(s2, r5); |
| 3378 | __ vcvt_f64_s32(d0, s2); |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 3379 | __ add(r3, r3, Operand(key, LSL, 2)); |
erik.corry@gmail.com | 3847bd5 | 2011-04-27 10:38:56 +0000 | [diff] [blame] | 3380 | // r3: effective address of the double element |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3381 | __ vstr(d0, r3, 0); |
erik.corry@gmail.com | 3847bd5 | 2011-04-27 10:38:56 +0000 | [diff] [blame] | 3382 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3383 | case FAST_ELEMENTS: |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 3384 | case FAST_SMI_ELEMENTS: |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3385 | case FAST_DOUBLE_ELEMENTS: |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 3386 | case FAST_HOLEY_ELEMENTS: |
| 3387 | case FAST_HOLEY_SMI_ELEMENTS: |
| 3388 | case FAST_HOLEY_DOUBLE_ELEMENTS: |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3389 | case DICTIONARY_ELEMENTS: |
| 3390 | case NON_STRICT_ARGUMENTS_ELEMENTS: |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3391 | UNREACHABLE(); |
| 3392 | break; |
| 3393 | } |
| 3394 | |
| 3395 | // Entry registers are intact, r0 holds the value which is the return value. |
| 3396 | __ Ret(); |
| 3397 | |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3398 | if (elements_kind != EXTERNAL_PIXEL_ELEMENTS) { |
danno@chromium.org | 4d3fe4e | 2011-03-10 10:14:28 +0000 | [diff] [blame] | 3399 | // r3: external array. |
danno@chromium.org | 4d3fe4e | 2011-03-10 10:14:28 +0000 | [diff] [blame] | 3400 | __ bind(&check_heap_number); |
| 3401 | __ CompareObjectType(value, r5, r6, HEAP_NUMBER_TYPE); |
| 3402 | __ b(ne, &slow); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3403 | |
danno@chromium.org | 4d3fe4e | 2011-03-10 10:14:28 +0000 | [diff] [blame] | 3404 | __ ldr(r3, FieldMemOperand(r3, ExternalArray::kExternalPointerOffset)); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3405 | |
danno@chromium.org | 4d3fe4e | 2011-03-10 10:14:28 +0000 | [diff] [blame] | 3406 | // r3: base pointer of external storage. |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3407 | |
danno@chromium.org | 4d3fe4e | 2011-03-10 10:14:28 +0000 | [diff] [blame] | 3408 | // The WebGL specification leaves the behavior of storing NaN and |
| 3409 | // +/-Infinity into integer arrays basically undefined. For more |
| 3410 | // reproducible behavior, convert these to zero. |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3411 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3412 | if (elements_kind == EXTERNAL_FLOAT_ELEMENTS) { |
| 3413 | // vldr requires offset to be a multiple of 4 so we can not |
| 3414 | // include -kHeapObjectTag into it. |
| 3415 | __ sub(r5, r0, Operand(kHeapObjectTag)); |
| 3416 | __ vldr(d0, r5, HeapNumber::kValueOffset); |
| 3417 | __ add(r5, r3, Operand(key, LSL, 1)); |
| 3418 | __ vcvt_f32_f64(s0, d0); |
| 3419 | __ vstr(s0, r5, 0); |
| 3420 | } else if (elements_kind == EXTERNAL_DOUBLE_ELEMENTS) { |
| 3421 | __ sub(r5, r0, Operand(kHeapObjectTag)); |
| 3422 | __ vldr(d0, r5, HeapNumber::kValueOffset); |
| 3423 | __ add(r5, r3, Operand(key, LSL, 2)); |
| 3424 | __ vstr(d0, r5, 0); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3425 | } else { |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3426 | // Hoisted load. vldr requires offset to be a multiple of 4 so we can |
| 3427 | // not include -kHeapObjectTag into it. |
| 3428 | __ sub(r5, value, Operand(kHeapObjectTag)); |
| 3429 | __ vldr(d0, r5, HeapNumber::kValueOffset); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 3430 | __ ECMAToInt32(r5, d0, r6, r7, r9, d1); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3431 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3432 | switch (elements_kind) { |
| 3433 | case EXTERNAL_BYTE_ELEMENTS: |
| 3434 | case EXTERNAL_UNSIGNED_BYTE_ELEMENTS: |
| 3435 | __ strb(r5, MemOperand(r3, key, LSR, 1)); |
| 3436 | break; |
| 3437 | case EXTERNAL_SHORT_ELEMENTS: |
| 3438 | case EXTERNAL_UNSIGNED_SHORT_ELEMENTS: |
| 3439 | __ strh(r5, MemOperand(r3, key, LSL, 0)); |
| 3440 | break; |
| 3441 | case EXTERNAL_INT_ELEMENTS: |
| 3442 | case EXTERNAL_UNSIGNED_INT_ELEMENTS: |
| 3443 | __ str(r5, MemOperand(r3, key, LSL, 1)); |
| 3444 | break; |
| 3445 | case EXTERNAL_PIXEL_ELEMENTS: |
| 3446 | case EXTERNAL_FLOAT_ELEMENTS: |
| 3447 | case EXTERNAL_DOUBLE_ELEMENTS: |
| 3448 | case FAST_ELEMENTS: |
| 3449 | case FAST_SMI_ELEMENTS: |
| 3450 | case FAST_DOUBLE_ELEMENTS: |
| 3451 | case FAST_HOLEY_ELEMENTS: |
| 3452 | case FAST_HOLEY_SMI_ELEMENTS: |
| 3453 | case FAST_HOLEY_DOUBLE_ELEMENTS: |
| 3454 | case DICTIONARY_ELEMENTS: |
| 3455 | case NON_STRICT_ARGUMENTS_ELEMENTS: |
| 3456 | UNREACHABLE(); |
| 3457 | break; |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3458 | } |
| 3459 | } |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3460 | |
| 3461 | // Entry registers are intact, r0 holds the value which is the return |
| 3462 | // value. |
| 3463 | __ Ret(); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3464 | } |
| 3465 | |
ager@chromium.org | ea91cc5 | 2011-05-23 06:06:11 +0000 | [diff] [blame] | 3466 | // Slow case, key and receiver still in r0 and r1. |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3467 | __ bind(&slow); |
ager@chromium.org | ea91cc5 | 2011-05-23 06:06:11 +0000 | [diff] [blame] | 3468 | __ IncrementCounter( |
| 3469 | masm->isolate()->counters()->keyed_load_external_array_slow(), |
| 3470 | 1, r2, r3); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3471 | |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3472 | // ---------- S t a t e -------------- |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3473 | // -- lr : return address |
ager@chromium.org | ea91cc5 | 2011-05-23 06:06:11 +0000 | [diff] [blame] | 3474 | // -- r0 : key |
| 3475 | // -- r1 : receiver |
| 3476 | // ----------------------------------- |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3477 | TailCallBuiltin(masm, Builtins::kKeyedStoreIC_Slow); |
ager@chromium.org | ea91cc5 | 2011-05-23 06:06:11 +0000 | [diff] [blame] | 3478 | |
| 3479 | // Miss case, call the runtime. |
| 3480 | __ bind(&miss_force_generic); |
| 3481 | |
| 3482 | // ---------- S t a t e -------------- |
| 3483 | // -- lr : return address |
| 3484 | // -- r0 : key |
| 3485 | // -- r1 : receiver |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3486 | // ----------------------------------- |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3487 | TailCallBuiltin(masm, Builtins::kKeyedStoreIC_MissForceGeneric); |
ager@chromium.org | ea91cc5 | 2011-05-23 06:06:11 +0000 | [diff] [blame] | 3488 | } |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3489 | |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 3490 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3491 | void KeyedStoreStubCompiler::GenerateStoreFastElement( |
| 3492 | MacroAssembler* masm, |
| 3493 | bool is_js_array, |
ulan@chromium.org | 65a89c2 | 2012-02-14 11:46:07 +0000 | [diff] [blame] | 3494 | ElementsKind elements_kind, |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 3495 | KeyedAccessStoreMode store_mode) { |
ager@chromium.org | ea91cc5 | 2011-05-23 06:06:11 +0000 | [diff] [blame] | 3496 | // ----------- S t a t e ------------- |
| 3497 | // -- r0 : value |
| 3498 | // -- r1 : key |
| 3499 | // -- r2 : receiver |
| 3500 | // -- lr : return address |
| 3501 | // -- r3 : scratch |
| 3502 | // -- r4 : scratch (elements) |
| 3503 | // ----------------------------------- |
ulan@chromium.org | 65a89c2 | 2012-02-14 11:46:07 +0000 | [diff] [blame] | 3504 | Label miss_force_generic, transition_elements_kind, grow, slow; |
| 3505 | Label finish_store, check_capacity; |
ager@chromium.org | ea91cc5 | 2011-05-23 06:06:11 +0000 | [diff] [blame] | 3506 | |
| 3507 | Register value_reg = r0; |
| 3508 | Register key_reg = r1; |
| 3509 | Register receiver_reg = r2; |
ulan@chromium.org | 65a89c2 | 2012-02-14 11:46:07 +0000 | [diff] [blame] | 3510 | Register scratch = r4; |
| 3511 | Register elements_reg = r3; |
| 3512 | Register length_reg = r5; |
| 3513 | Register scratch2 = r6; |
ager@chromium.org | ea91cc5 | 2011-05-23 06:06:11 +0000 | [diff] [blame] | 3514 | |
| 3515 | // This stub is meant to be tail-jumped to, the receiver must already |
| 3516 | // have been verified by the caller to not be a smi. |
| 3517 | |
jkummerow@chromium.org | 28faa98 | 2012-04-13 09:58:30 +0000 | [diff] [blame] | 3518 | // Check that the key is a smi or a heap number convertible to a smi. |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 3519 | GenerateSmiKeyCheck(masm, key_reg, r4, d1, d2, &miss_force_generic); |
ager@chromium.org | ea91cc5 | 2011-05-23 06:06:11 +0000 | [diff] [blame] | 3520 | |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 3521 | if (IsFastSmiElementsKind(elements_kind)) { |
ulan@chromium.org | 65a89c2 | 2012-02-14 11:46:07 +0000 | [diff] [blame] | 3522 | __ JumpIfNotSmi(value_reg, &transition_elements_kind); |
| 3523 | } |
ager@chromium.org | ea91cc5 | 2011-05-23 06:06:11 +0000 | [diff] [blame] | 3524 | |
| 3525 | // Check that the key is within bounds. |
ulan@chromium.org | 65a89c2 | 2012-02-14 11:46:07 +0000 | [diff] [blame] | 3526 | __ ldr(elements_reg, |
| 3527 | FieldMemOperand(receiver_reg, JSObject::kElementsOffset)); |
ager@chromium.org | ea91cc5 | 2011-05-23 06:06:11 +0000 | [diff] [blame] | 3528 | if (is_js_array) { |
| 3529 | __ ldr(scratch, FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); |
| 3530 | } else { |
| 3531 | __ ldr(scratch, FieldMemOperand(elements_reg, FixedArray::kLengthOffset)); |
| 3532 | } |
| 3533 | // Compare smis. |
| 3534 | __ cmp(key_reg, scratch); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 3535 | if (is_js_array && IsGrowStoreMode(store_mode)) { |
ulan@chromium.org | 65a89c2 | 2012-02-14 11:46:07 +0000 | [diff] [blame] | 3536 | __ b(hs, &grow); |
| 3537 | } else { |
| 3538 | __ b(hs, &miss_force_generic); |
| 3539 | } |
ager@chromium.org | ea91cc5 | 2011-05-23 06:06:11 +0000 | [diff] [blame] | 3540 | |
ulan@chromium.org | 65a89c2 | 2012-02-14 11:46:07 +0000 | [diff] [blame] | 3541 | // Make sure elements is a fast element array, not 'cow'. |
| 3542 | __ CheckMap(elements_reg, |
| 3543 | scratch, |
| 3544 | Heap::kFixedArrayMapRootIndex, |
| 3545 | &miss_force_generic, |
| 3546 | DONT_DO_SMI_CHECK); |
| 3547 | |
| 3548 | __ bind(&finish_store); |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 3549 | if (IsFastSmiElementsKind(elements_kind)) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3550 | __ add(scratch, |
| 3551 | elements_reg, |
| 3552 | Operand(FixedArray::kHeaderSize - kHeapObjectTag)); |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 3553 | __ add(scratch, scratch, Operand::PointerOffsetFromSmiKey(key_reg)); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3554 | __ str(value_reg, MemOperand(scratch)); |
| 3555 | } else { |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 3556 | ASSERT(IsFastObjectElementsKind(elements_kind)); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3557 | __ add(scratch, |
| 3558 | elements_reg, |
| 3559 | Operand(FixedArray::kHeaderSize - kHeapObjectTag)); |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 3560 | __ add(scratch, scratch, Operand::PointerOffsetFromSmiKey(key_reg)); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3561 | __ str(value_reg, MemOperand(scratch)); |
| 3562 | __ mov(receiver_reg, value_reg); |
| 3563 | __ RecordWrite(elements_reg, // Object. |
| 3564 | scratch, // Address. |
| 3565 | receiver_reg, // Value. |
| 3566 | kLRHasNotBeenSaved, |
| 3567 | kDontSaveFPRegs); |
| 3568 | } |
ager@chromium.org | ea91cc5 | 2011-05-23 06:06:11 +0000 | [diff] [blame] | 3569 | // value_reg (r0) is preserved. |
| 3570 | // Done. |
| 3571 | __ Ret(); |
| 3572 | |
| 3573 | __ bind(&miss_force_generic); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3574 | TailCallBuiltin(masm, Builtins::kKeyedStoreIC_MissForceGeneric); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3575 | |
| 3576 | __ bind(&transition_elements_kind); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3577 | TailCallBuiltin(masm, Builtins::kKeyedStoreIC_Miss); |
ulan@chromium.org | 65a89c2 | 2012-02-14 11:46:07 +0000 | [diff] [blame] | 3578 | |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 3579 | if (is_js_array && IsGrowStoreMode(store_mode)) { |
ulan@chromium.org | 65a89c2 | 2012-02-14 11:46:07 +0000 | [diff] [blame] | 3580 | // Grow the array by a single element if possible. |
| 3581 | __ bind(&grow); |
| 3582 | |
| 3583 | // Make sure the array is only growing by a single element, anything else |
| 3584 | // must be handled by the runtime. Flags already set by previous compare. |
| 3585 | __ b(ne, &miss_force_generic); |
| 3586 | |
| 3587 | // Check for the empty array, and preallocate a small backing store if |
| 3588 | // possible. |
| 3589 | __ ldr(length_reg, |
| 3590 | FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); |
| 3591 | __ ldr(elements_reg, |
| 3592 | FieldMemOperand(receiver_reg, JSObject::kElementsOffset)); |
| 3593 | __ CompareRoot(elements_reg, Heap::kEmptyFixedArrayRootIndex); |
| 3594 | __ b(ne, &check_capacity); |
| 3595 | |
| 3596 | int size = FixedArray::SizeFor(JSArray::kPreallocatedArrayElements); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3597 | __ Allocate(size, elements_reg, scratch, scratch2, &slow, TAG_OBJECT); |
ulan@chromium.org | 65a89c2 | 2012-02-14 11:46:07 +0000 | [diff] [blame] | 3598 | |
| 3599 | __ LoadRoot(scratch, Heap::kFixedArrayMapRootIndex); |
| 3600 | __ str(scratch, FieldMemOperand(elements_reg, JSObject::kMapOffset)); |
| 3601 | __ mov(scratch, Operand(Smi::FromInt(JSArray::kPreallocatedArrayElements))); |
| 3602 | __ str(scratch, FieldMemOperand(elements_reg, FixedArray::kLengthOffset)); |
| 3603 | __ LoadRoot(scratch, Heap::kTheHoleValueRootIndex); |
| 3604 | for (int i = 1; i < JSArray::kPreallocatedArrayElements; ++i) { |
| 3605 | __ str(scratch, FieldMemOperand(elements_reg, FixedArray::SizeFor(i))); |
| 3606 | } |
| 3607 | |
| 3608 | // Store the element at index zero. |
| 3609 | __ str(value_reg, FieldMemOperand(elements_reg, FixedArray::SizeFor(0))); |
| 3610 | |
| 3611 | // Install the new backing store in the JSArray. |
| 3612 | __ str(elements_reg, |
| 3613 | FieldMemOperand(receiver_reg, JSObject::kElementsOffset)); |
| 3614 | __ RecordWriteField(receiver_reg, JSObject::kElementsOffset, elements_reg, |
| 3615 | scratch, kLRHasNotBeenSaved, kDontSaveFPRegs, |
| 3616 | EMIT_REMEMBERED_SET, OMIT_SMI_CHECK); |
| 3617 | |
| 3618 | // Increment the length of the array. |
| 3619 | __ mov(length_reg, Operand(Smi::FromInt(1))); |
| 3620 | __ str(length_reg, FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); |
| 3621 | __ Ret(); |
| 3622 | |
| 3623 | __ bind(&check_capacity); |
| 3624 | // Check for cow elements, in general they are not handled by this stub |
| 3625 | __ CheckMap(elements_reg, |
| 3626 | scratch, |
| 3627 | Heap::kFixedCOWArrayMapRootIndex, |
| 3628 | &miss_force_generic, |
| 3629 | DONT_DO_SMI_CHECK); |
| 3630 | |
| 3631 | __ ldr(scratch, FieldMemOperand(elements_reg, FixedArray::kLengthOffset)); |
| 3632 | __ cmp(length_reg, scratch); |
| 3633 | __ b(hs, &slow); |
| 3634 | |
| 3635 | // Grow the array and finish the store. |
| 3636 | __ add(length_reg, length_reg, Operand(Smi::FromInt(1))); |
| 3637 | __ str(length_reg, FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); |
| 3638 | __ jmp(&finish_store); |
| 3639 | |
| 3640 | __ bind(&slow); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3641 | TailCallBuiltin(masm, Builtins::kKeyedStoreIC_Slow); |
ulan@chromium.org | 65a89c2 | 2012-02-14 11:46:07 +0000 | [diff] [blame] | 3642 | } |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3643 | } |
| 3644 | |
| 3645 | |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 3646 | void KeyedStoreStubCompiler::GenerateStoreFastDoubleElement( |
| 3647 | MacroAssembler* masm, |
ulan@chromium.org | 65a89c2 | 2012-02-14 11:46:07 +0000 | [diff] [blame] | 3648 | bool is_js_array, |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 3649 | KeyedAccessStoreMode store_mode) { |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 3650 | // ----------- S t a t e ------------- |
| 3651 | // -- r0 : value |
| 3652 | // -- r1 : key |
| 3653 | // -- r2 : receiver |
| 3654 | // -- lr : return address |
svenpanne@chromium.org | 83130cf | 2012-11-30 10:13:25 +0000 | [diff] [blame] | 3655 | // -- r3 : scratch (elements backing store) |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 3656 | // -- r4 : scratch |
| 3657 | // -- r5 : scratch |
| 3658 | // ----------------------------------- |
ulan@chromium.org | 65a89c2 | 2012-02-14 11:46:07 +0000 | [diff] [blame] | 3659 | Label miss_force_generic, transition_elements_kind, grow, slow; |
| 3660 | Label finish_store, check_capacity; |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 3661 | |
| 3662 | Register value_reg = r0; |
| 3663 | Register key_reg = r1; |
| 3664 | Register receiver_reg = r2; |
svenpanne@chromium.org | a8bb4d9 | 2011-10-10 13:20:40 +0000 | [diff] [blame] | 3665 | Register elements_reg = r3; |
| 3666 | Register scratch1 = r4; |
| 3667 | Register scratch2 = r5; |
ulan@chromium.org | 65a89c2 | 2012-02-14 11:46:07 +0000 | [diff] [blame] | 3668 | Register length_reg = r7; |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 3669 | |
| 3670 | // This stub is meant to be tail-jumped to, the receiver must already |
| 3671 | // have been verified by the caller to not be a smi. |
jkummerow@chromium.org | 28faa98 | 2012-04-13 09:58:30 +0000 | [diff] [blame] | 3672 | |
| 3673 | // Check that the key is a smi or a heap number convertible to a smi. |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 3674 | GenerateSmiKeyCheck(masm, key_reg, r4, d1, d2, &miss_force_generic); |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 3675 | |
| 3676 | __ ldr(elements_reg, |
| 3677 | FieldMemOperand(receiver_reg, JSObject::kElementsOffset)); |
| 3678 | |
| 3679 | // Check that the key is within bounds. |
| 3680 | if (is_js_array) { |
svenpanne@chromium.org | a8bb4d9 | 2011-10-10 13:20:40 +0000 | [diff] [blame] | 3681 | __ ldr(scratch1, FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 3682 | } else { |
svenpanne@chromium.org | a8bb4d9 | 2011-10-10 13:20:40 +0000 | [diff] [blame] | 3683 | __ ldr(scratch1, |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 3684 | FieldMemOperand(elements_reg, FixedArray::kLengthOffset)); |
| 3685 | } |
| 3686 | // Compare smis, unsigned compare catches both negative and out-of-bound |
| 3687 | // indexes. |
svenpanne@chromium.org | a8bb4d9 | 2011-10-10 13:20:40 +0000 | [diff] [blame] | 3688 | __ cmp(key_reg, scratch1); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 3689 | if (IsGrowStoreMode(store_mode)) { |
ulan@chromium.org | 65a89c2 | 2012-02-14 11:46:07 +0000 | [diff] [blame] | 3690 | __ b(hs, &grow); |
| 3691 | } else { |
| 3692 | __ b(hs, &miss_force_generic); |
| 3693 | } |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 3694 | |
ulan@chromium.org | 65a89c2 | 2012-02-14 11:46:07 +0000 | [diff] [blame] | 3695 | __ bind(&finish_store); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 3696 | __ StoreNumberToDoubleElements(value_reg, key_reg, elements_reg, |
| 3697 | scratch1, &transition_elements_kind); |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 3698 | __ Ret(); |
| 3699 | |
| 3700 | // Handle store cache miss, replacing the ic with the generic stub. |
| 3701 | __ bind(&miss_force_generic); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3702 | TailCallBuiltin(masm, Builtins::kKeyedStoreIC_MissForceGeneric); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3703 | |
| 3704 | __ bind(&transition_elements_kind); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3705 | TailCallBuiltin(masm, Builtins::kKeyedStoreIC_Miss); |
ulan@chromium.org | 65a89c2 | 2012-02-14 11:46:07 +0000 | [diff] [blame] | 3706 | |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 3707 | if (is_js_array && IsGrowStoreMode(store_mode)) { |
ulan@chromium.org | 65a89c2 | 2012-02-14 11:46:07 +0000 | [diff] [blame] | 3708 | // Grow the array by a single element if possible. |
| 3709 | __ bind(&grow); |
| 3710 | |
| 3711 | // Make sure the array is only growing by a single element, anything else |
| 3712 | // must be handled by the runtime. Flags already set by previous compare. |
| 3713 | __ b(ne, &miss_force_generic); |
| 3714 | |
| 3715 | // Transition on values that can't be stored in a FixedDoubleArray. |
| 3716 | Label value_is_smi; |
| 3717 | __ JumpIfSmi(value_reg, &value_is_smi); |
| 3718 | __ ldr(scratch1, FieldMemOperand(value_reg, HeapObject::kMapOffset)); |
| 3719 | __ CompareRoot(scratch1, Heap::kHeapNumberMapRootIndex); |
| 3720 | __ b(ne, &transition_elements_kind); |
| 3721 | __ bind(&value_is_smi); |
| 3722 | |
| 3723 | // Check for the empty array, and preallocate a small backing store if |
| 3724 | // possible. |
| 3725 | __ ldr(length_reg, |
| 3726 | FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); |
| 3727 | __ ldr(elements_reg, |
| 3728 | FieldMemOperand(receiver_reg, JSObject::kElementsOffset)); |
| 3729 | __ CompareRoot(elements_reg, Heap::kEmptyFixedArrayRootIndex); |
| 3730 | __ b(ne, &check_capacity); |
| 3731 | |
| 3732 | int size = FixedDoubleArray::SizeFor(JSArray::kPreallocatedArrayElements); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3733 | __ Allocate(size, elements_reg, scratch1, scratch2, &slow, TAG_OBJECT); |
ulan@chromium.org | 65a89c2 | 2012-02-14 11:46:07 +0000 | [diff] [blame] | 3734 | |
danno@chromium.org | 1f34ad3 | 2012-11-26 14:53:56 +0000 | [diff] [blame] | 3735 | // Initialize the new FixedDoubleArray. |
ulan@chromium.org | 65a89c2 | 2012-02-14 11:46:07 +0000 | [diff] [blame] | 3736 | __ LoadRoot(scratch1, Heap::kFixedDoubleArrayMapRootIndex); |
| 3737 | __ str(scratch1, FieldMemOperand(elements_reg, JSObject::kMapOffset)); |
| 3738 | __ mov(scratch1, |
| 3739 | Operand(Smi::FromInt(JSArray::kPreallocatedArrayElements))); |
| 3740 | __ str(scratch1, |
| 3741 | FieldMemOperand(elements_reg, FixedDoubleArray::kLengthOffset)); |
| 3742 | |
svenpanne@chromium.org | 83130cf | 2012-11-30 10:13:25 +0000 | [diff] [blame] | 3743 | __ mov(scratch1, elements_reg); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 3744 | __ StoreNumberToDoubleElements(value_reg, key_reg, scratch1, |
| 3745 | scratch2, &transition_elements_kind); |
svenpanne@chromium.org | 83130cf | 2012-11-30 10:13:25 +0000 | [diff] [blame] | 3746 | |
danno@chromium.org | 1f34ad3 | 2012-11-26 14:53:56 +0000 | [diff] [blame] | 3747 | __ mov(scratch1, Operand(kHoleNanLower32)); |
| 3748 | __ mov(scratch2, Operand(kHoleNanUpper32)); |
| 3749 | for (int i = 1; i < JSArray::kPreallocatedArrayElements; i++) { |
| 3750 | int offset = FixedDoubleArray::OffsetOfElementAt(i); |
| 3751 | __ str(scratch1, FieldMemOperand(elements_reg, offset)); |
| 3752 | __ str(scratch2, FieldMemOperand(elements_reg, offset + kPointerSize)); |
| 3753 | } |
| 3754 | |
ulan@chromium.org | 65a89c2 | 2012-02-14 11:46:07 +0000 | [diff] [blame] | 3755 | // Install the new backing store in the JSArray. |
| 3756 | __ str(elements_reg, |
| 3757 | FieldMemOperand(receiver_reg, JSObject::kElementsOffset)); |
| 3758 | __ RecordWriteField(receiver_reg, JSObject::kElementsOffset, elements_reg, |
| 3759 | scratch1, kLRHasNotBeenSaved, kDontSaveFPRegs, |
| 3760 | EMIT_REMEMBERED_SET, OMIT_SMI_CHECK); |
| 3761 | |
| 3762 | // Increment the length of the array. |
| 3763 | __ mov(length_reg, Operand(Smi::FromInt(1))); |
| 3764 | __ str(length_reg, FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); |
danno@chromium.org | 2c26cb1 | 2012-05-03 09:06:43 +0000 | [diff] [blame] | 3765 | __ ldr(elements_reg, |
| 3766 | FieldMemOperand(receiver_reg, JSObject::kElementsOffset)); |
danno@chromium.org | 1f34ad3 | 2012-11-26 14:53:56 +0000 | [diff] [blame] | 3767 | __ Ret(); |
ulan@chromium.org | 65a89c2 | 2012-02-14 11:46:07 +0000 | [diff] [blame] | 3768 | |
| 3769 | __ bind(&check_capacity); |
| 3770 | // Make sure that the backing store can hold additional elements. |
| 3771 | __ ldr(scratch1, |
| 3772 | FieldMemOperand(elements_reg, FixedDoubleArray::kLengthOffset)); |
| 3773 | __ cmp(length_reg, scratch1); |
| 3774 | __ b(hs, &slow); |
| 3775 | |
| 3776 | // Grow the array and finish the store. |
| 3777 | __ add(length_reg, length_reg, Operand(Smi::FromInt(1))); |
| 3778 | __ str(length_reg, FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); |
| 3779 | __ jmp(&finish_store); |
| 3780 | |
| 3781 | __ bind(&slow); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3782 | TailCallBuiltin(masm, Builtins::kKeyedStoreIC_Slow); |
ulan@chromium.org | 65a89c2 | 2012-02-14 11:46:07 +0000 | [diff] [blame] | 3783 | } |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 3784 | } |
| 3785 | |
| 3786 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 3787 | #undef __ |
| 3788 | |
| 3789 | } } // namespace v8::internal |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 3790 | |
| 3791 | #endif // V8_TARGET_ARCH_ARM |