kasperl@chromium.org | 71affb5 | 2009-05-26 05:44:31 +0000 | [diff] [blame] | 1 | // Copyright 2006-2009 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 | |
| 30 | #include "ic-inl.h" |
| 31 | #include "codegen-inl.h" |
| 32 | #include "stub-cache.h" |
| 33 | |
kasperl@chromium.org | 71affb5 | 2009-05-26 05:44:31 +0000 | [diff] [blame] | 34 | namespace v8 { |
| 35 | namespace internal { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 36 | |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 37 | #define __ ACCESS_MASM(masm) |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 38 | |
| 39 | |
| 40 | static void ProbeTable(MacroAssembler* masm, |
| 41 | Code::Flags flags, |
| 42 | StubCache::Table table, |
| 43 | Register name, |
kasperl@chromium.org | 86f77b7 | 2009-07-06 08:21:57 +0000 | [diff] [blame] | 44 | Register offset, |
| 45 | Register extra) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 46 | ExternalReference key_offset(SCTableReference::keyReference(table)); |
| 47 | ExternalReference value_offset(SCTableReference::valueReference(table)); |
| 48 | |
| 49 | Label miss; |
| 50 | |
kasperl@chromium.org | 86f77b7 | 2009-07-06 08:21:57 +0000 | [diff] [blame] | 51 | if (extra.is_valid()) { |
| 52 | // Get the code entry from the cache. |
| 53 | __ mov(extra, Operand::StaticArray(offset, times_2, value_offset)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 54 | |
kasperl@chromium.org | 86f77b7 | 2009-07-06 08:21:57 +0000 | [diff] [blame] | 55 | // Check that the key in the entry matches the name. |
| 56 | __ cmp(name, Operand::StaticArray(offset, times_2, key_offset)); |
| 57 | __ j(not_equal, &miss, not_taken); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 58 | |
kasperl@chromium.org | 86f77b7 | 2009-07-06 08:21:57 +0000 | [diff] [blame] | 59 | // Check that the flags match what we're looking for. |
| 60 | __ mov(offset, FieldOperand(extra, Code::kFlagsOffset)); |
| 61 | __ and_(offset, ~Code::kFlagsNotUsedInLookup); |
| 62 | __ cmp(offset, flags); |
| 63 | __ j(not_equal, &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 64 | |
kasperl@chromium.org | 86f77b7 | 2009-07-06 08:21:57 +0000 | [diff] [blame] | 65 | // Jump to the first instruction in the code stub. |
| 66 | __ add(Operand(extra), Immediate(Code::kHeaderSize - kHeapObjectTag)); |
| 67 | __ jmp(Operand(extra)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 68 | |
kasperl@chromium.org | 86f77b7 | 2009-07-06 08:21:57 +0000 | [diff] [blame] | 69 | __ bind(&miss); |
| 70 | } else { |
| 71 | // Save the offset on the stack. |
| 72 | __ push(offset); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 73 | |
kasperl@chromium.org | 86f77b7 | 2009-07-06 08:21:57 +0000 | [diff] [blame] | 74 | // Check that the key in the entry matches the name. |
| 75 | __ cmp(name, Operand::StaticArray(offset, times_2, key_offset)); |
| 76 | __ j(not_equal, &miss, not_taken); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 77 | |
kasperl@chromium.org | 86f77b7 | 2009-07-06 08:21:57 +0000 | [diff] [blame] | 78 | // Get the code entry from the cache. |
| 79 | __ mov(offset, Operand::StaticArray(offset, times_2, value_offset)); |
| 80 | |
| 81 | // Check that the flags match what we're looking for. |
| 82 | __ mov(offset, FieldOperand(offset, Code::kFlagsOffset)); |
| 83 | __ and_(offset, ~Code::kFlagsNotUsedInLookup); |
| 84 | __ cmp(offset, flags); |
| 85 | __ j(not_equal, &miss); |
| 86 | |
| 87 | // Restore offset and re-load code entry from cache. |
| 88 | __ pop(offset); |
| 89 | __ mov(offset, Operand::StaticArray(offset, times_2, value_offset)); |
| 90 | |
| 91 | // Jump to the first instruction in the code stub. |
| 92 | __ add(Operand(offset), Immediate(Code::kHeaderSize - kHeapObjectTag)); |
| 93 | __ jmp(Operand(offset)); |
| 94 | |
| 95 | // Pop at miss. |
| 96 | __ bind(&miss); |
| 97 | __ pop(offset); |
| 98 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 99 | } |
| 100 | |
| 101 | |
| 102 | void StubCache::GenerateProbe(MacroAssembler* masm, |
| 103 | Code::Flags flags, |
| 104 | Register receiver, |
| 105 | Register name, |
kasperl@chromium.org | 86f77b7 | 2009-07-06 08:21:57 +0000 | [diff] [blame] | 106 | Register scratch, |
| 107 | Register extra) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 108 | Label miss; |
| 109 | |
| 110 | // Make sure that code is valid. The shifting code relies on the |
| 111 | // entry size being 8. |
| 112 | ASSERT(sizeof(Entry) == 8); |
| 113 | |
| 114 | // Make sure the flags does not name a specific type. |
| 115 | ASSERT(Code::ExtractTypeFromFlags(flags) == 0); |
| 116 | |
| 117 | // Make sure that there are no register conflicts. |
| 118 | ASSERT(!scratch.is(receiver)); |
| 119 | ASSERT(!scratch.is(name)); |
kasperl@chromium.org | 86f77b7 | 2009-07-06 08:21:57 +0000 | [diff] [blame] | 120 | ASSERT(!extra.is(receiver)); |
| 121 | ASSERT(!extra.is(name)); |
| 122 | ASSERT(!extra.is(scratch)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 123 | |
| 124 | // Check that the receiver isn't a smi. |
| 125 | __ test(receiver, Immediate(kSmiTagMask)); |
| 126 | __ j(zero, &miss, not_taken); |
| 127 | |
| 128 | // Get the map of the receiver and compute the hash. |
sgjesse@chromium.org | ac6aa17 | 2009-12-04 12:29:05 +0000 | [diff] [blame] | 129 | __ mov(scratch, FieldOperand(name, String::kHashFieldOffset)); |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 130 | __ add(scratch, FieldOperand(receiver, HeapObject::kMapOffset)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 131 | __ xor_(scratch, flags); |
| 132 | __ and_(scratch, (kPrimaryTableSize - 1) << kHeapObjectTagSize); |
| 133 | |
| 134 | // Probe the primary table. |
kasperl@chromium.org | 86f77b7 | 2009-07-06 08:21:57 +0000 | [diff] [blame] | 135 | ProbeTable(masm, flags, kPrimary, name, scratch, extra); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 136 | |
| 137 | // Primary miss: Compute hash for secondary probe. |
sgjesse@chromium.org | ac6aa17 | 2009-12-04 12:29:05 +0000 | [diff] [blame] | 138 | __ mov(scratch, FieldOperand(name, String::kHashFieldOffset)); |
kasperl@chromium.org | 86f77b7 | 2009-07-06 08:21:57 +0000 | [diff] [blame] | 139 | __ add(scratch, FieldOperand(receiver, HeapObject::kMapOffset)); |
| 140 | __ xor_(scratch, flags); |
| 141 | __ and_(scratch, (kPrimaryTableSize - 1) << kHeapObjectTagSize); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 142 | __ sub(scratch, Operand(name)); |
| 143 | __ add(Operand(scratch), Immediate(flags)); |
| 144 | __ and_(scratch, (kSecondaryTableSize - 1) << kHeapObjectTagSize); |
| 145 | |
| 146 | // Probe the secondary table. |
kasperl@chromium.org | 86f77b7 | 2009-07-06 08:21:57 +0000 | [diff] [blame] | 147 | ProbeTable(masm, flags, kSecondary, name, scratch, extra); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 148 | |
| 149 | // Cache miss: Fall-through and let caller handle the miss by |
| 150 | // entering the runtime system. |
| 151 | __ bind(&miss); |
| 152 | } |
| 153 | |
| 154 | |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 155 | static void PushInterceptorArguments(MacroAssembler* masm, |
| 156 | Register receiver, |
| 157 | Register holder, |
sgjesse@chromium.org | 846fb74 | 2009-12-18 08:56:33 +0000 | [diff] [blame] | 158 | Register name, |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 159 | JSObject* holder_obj) { |
| 160 | __ push(receiver); |
| 161 | __ push(holder); |
| 162 | __ push(name); |
| 163 | InterceptorInfo* interceptor = holder_obj->GetNamedInterceptor(); |
| 164 | __ mov(receiver, Immediate(Handle<Object>(interceptor))); |
| 165 | __ push(receiver); |
| 166 | __ push(FieldOperand(receiver, InterceptorInfo::kDataOffset)); |
| 167 | } |
| 168 | |
| 169 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 170 | void StubCompiler::GenerateLoadGlobalFunctionPrototype(MacroAssembler* masm, |
| 171 | int index, |
| 172 | Register prototype) { |
| 173 | // Load the global or builtins object from the current context. |
| 174 | __ mov(prototype, Operand(esi, Context::SlotOffset(Context::GLOBAL_INDEX))); |
| 175 | // Load the global context from the global or builtins object. |
| 176 | __ mov(prototype, |
| 177 | FieldOperand(prototype, GlobalObject::kGlobalContextOffset)); |
| 178 | // Load the function from the global context. |
| 179 | __ mov(prototype, Operand(prototype, Context::SlotOffset(index))); |
| 180 | // Load the initial map. The global functions all have initial maps. |
| 181 | __ mov(prototype, |
| 182 | FieldOperand(prototype, JSFunction::kPrototypeOrInitialMapOffset)); |
| 183 | // Load the prototype from the initial map. |
| 184 | __ mov(prototype, FieldOperand(prototype, Map::kPrototypeOffset)); |
| 185 | } |
| 186 | |
| 187 | |
| 188 | void StubCompiler::GenerateLoadArrayLength(MacroAssembler* masm, |
| 189 | Register receiver, |
| 190 | Register scratch, |
| 191 | Label* miss_label) { |
| 192 | // Check that the receiver isn't a smi. |
| 193 | __ test(receiver, Immediate(kSmiTagMask)); |
| 194 | __ j(zero, miss_label, not_taken); |
| 195 | |
| 196 | // Check that the object is a JS array. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 197 | __ CmpObjectType(receiver, JS_ARRAY_TYPE, scratch); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 198 | __ j(not_equal, miss_label, not_taken); |
| 199 | |
| 200 | // Load length directly from the JS array. |
| 201 | __ mov(eax, FieldOperand(receiver, JSArray::kLengthOffset)); |
| 202 | __ ret(0); |
| 203 | } |
| 204 | |
| 205 | |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 206 | // Generate code to check if an object is a string. If the object is |
| 207 | // a string, the map's instance type is left in the scratch register. |
| 208 | static void GenerateStringCheck(MacroAssembler* masm, |
| 209 | Register receiver, |
| 210 | Register scratch, |
| 211 | Label* smi, |
| 212 | Label* non_string_object) { |
| 213 | // Check that the object isn't a smi. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 214 | __ test(receiver, Immediate(kSmiTagMask)); |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 215 | __ j(zero, smi, not_taken); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 216 | |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 217 | // Check that the object is a string. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 218 | __ mov(scratch, FieldOperand(receiver, HeapObject::kMapOffset)); |
| 219 | __ movzx_b(scratch, FieldOperand(scratch, Map::kInstanceTypeOffset)); |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 220 | ASSERT(kNotStringTag != 0); |
| 221 | __ test(scratch, Immediate(kNotStringTag)); |
| 222 | __ j(not_zero, non_string_object, not_taken); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 223 | } |
| 224 | |
| 225 | |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 226 | void StubCompiler::GenerateLoadStringLength(MacroAssembler* masm, |
| 227 | Register receiver, |
| 228 | Register scratch, |
| 229 | Label* miss) { |
| 230 | Label load_length, check_wrapper; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 231 | |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 232 | // Check if the object is a string leaving the instance type in the |
| 233 | // scratch register. |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 234 | GenerateStringCheck(masm, receiver, scratch, miss, &check_wrapper); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 235 | |
sgjesse@chromium.org | ac6aa17 | 2009-12-04 12:29:05 +0000 | [diff] [blame] | 236 | // Load length from the string and convert to a smi. |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 237 | __ bind(&load_length); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 238 | __ mov(eax, FieldOperand(receiver, String::kLengthOffset)); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame^] | 239 | __ SmiTag(eax); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 240 | __ ret(0); |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 241 | |
| 242 | // Check if the object is a JSValue wrapper. |
| 243 | __ bind(&check_wrapper); |
kasperl@chromium.org | 9bbf968 | 2008-10-30 11:53:07 +0000 | [diff] [blame] | 244 | __ cmp(scratch, JS_VALUE_TYPE); |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 245 | __ j(not_equal, miss, not_taken); |
| 246 | |
| 247 | // Check if the wrapped value is a string and load the length |
| 248 | // directly if it is. |
| 249 | __ mov(receiver, FieldOperand(receiver, JSValue::kValueOffset)); |
| 250 | GenerateStringCheck(masm, receiver, scratch, miss, miss); |
| 251 | __ jmp(&load_length); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 252 | } |
| 253 | |
| 254 | |
| 255 | void StubCompiler::GenerateLoadFunctionPrototype(MacroAssembler* masm, |
| 256 | Register receiver, |
| 257 | Register scratch1, |
| 258 | Register scratch2, |
| 259 | Label* miss_label) { |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 260 | __ TryGetFunctionPrototype(receiver, scratch1, scratch2, miss_label); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 261 | __ mov(eax, Operand(scratch1)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 262 | __ ret(0); |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 263 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 264 | |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 265 | |
| 266 | // Load a fast property out of a holder object (src). In-object properties |
| 267 | // are loaded directly otherwise the property is loaded from the properties |
| 268 | // fixed array. |
| 269 | void StubCompiler::GenerateFastPropertyLoad(MacroAssembler* masm, |
christian.plesner.hansen@gmail.com | 37abdec | 2009-01-06 14:43:28 +0000 | [diff] [blame] | 270 | Register dst, Register src, |
| 271 | JSObject* holder, int index) { |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 272 | // Adjust for the number of properties stored in the holder. |
| 273 | index -= holder->map()->inobject_properties(); |
| 274 | if (index < 0) { |
| 275 | // Get the property straight out of the holder. |
| 276 | int offset = holder->map()->instance_size() + (index * kPointerSize); |
| 277 | __ mov(dst, FieldOperand(src, offset)); |
| 278 | } else { |
| 279 | // Calculate the offset into the properties array. |
kasperl@chromium.org | e959c18 | 2009-07-27 08:59:04 +0000 | [diff] [blame] | 280 | int offset = index * kPointerSize + FixedArray::kHeaderSize; |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 281 | __ mov(dst, FieldOperand(src, JSObject::kPropertiesOffset)); |
| 282 | __ mov(dst, FieldOperand(dst, offset)); |
| 283 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 284 | } |
| 285 | |
| 286 | |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 287 | static void CompileCallLoadPropertyWithInterceptor(MacroAssembler* masm, |
| 288 | Register receiver, |
| 289 | Register holder, |
sgjesse@chromium.org | 846fb74 | 2009-12-18 08:56:33 +0000 | [diff] [blame] | 290 | Register name, |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 291 | JSObject* holder_obj) { |
| 292 | PushInterceptorArguments(masm, receiver, holder, name, holder_obj); |
| 293 | |
| 294 | ExternalReference ref = |
| 295 | ExternalReference(IC_Utility(IC::kLoadPropertyWithInterceptorOnly)); |
| 296 | __ mov(eax, Immediate(5)); |
| 297 | __ mov(ebx, Immediate(ref)); |
| 298 | |
ager@chromium.org | a1645e2 | 2009-09-09 19:27:10 +0000 | [diff] [blame] | 299 | CEntryStub stub(1); |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 300 | __ CallStub(&stub); |
| 301 | } |
| 302 | |
| 303 | |
| 304 | template <class Compiler> |
| 305 | static void CompileLoadInterceptor(Compiler* compiler, |
| 306 | StubCompiler* stub_compiler, |
| 307 | MacroAssembler* masm, |
| 308 | JSObject* object, |
| 309 | JSObject* holder, |
| 310 | String* name, |
| 311 | LookupResult* lookup, |
| 312 | Register receiver, |
| 313 | Register scratch1, |
| 314 | Register scratch2, |
| 315 | Label* miss) { |
| 316 | ASSERT(holder->HasNamedInterceptor()); |
| 317 | ASSERT(!holder->GetNamedInterceptor()->getter()->IsUndefined()); |
| 318 | |
| 319 | // Check that the receiver isn't a smi. |
| 320 | __ test(receiver, Immediate(kSmiTagMask)); |
| 321 | __ j(zero, miss, not_taken); |
| 322 | |
| 323 | // Check that the maps haven't changed. |
| 324 | Register reg = |
| 325 | stub_compiler->CheckPrototypes(object, receiver, holder, |
| 326 | scratch1, scratch2, name, miss); |
| 327 | |
| 328 | if (lookup->IsValid() && lookup->IsCacheable()) { |
| 329 | compiler->CompileCacheable(masm, |
| 330 | stub_compiler, |
| 331 | receiver, |
| 332 | reg, |
| 333 | scratch1, |
| 334 | scratch2, |
| 335 | holder, |
| 336 | lookup, |
| 337 | name, |
| 338 | miss); |
| 339 | } else { |
| 340 | compiler->CompileRegular(masm, |
| 341 | receiver, |
| 342 | reg, |
| 343 | scratch2, |
| 344 | holder, |
| 345 | miss); |
| 346 | } |
| 347 | } |
| 348 | |
| 349 | |
| 350 | static void LookupPostInterceptor(JSObject* holder, |
| 351 | String* name, |
| 352 | LookupResult* lookup) { |
| 353 | holder->LocalLookupRealNamedProperty(name, lookup); |
| 354 | if (lookup->IsNotFound()) { |
| 355 | Object* proto = holder->GetPrototype(); |
| 356 | if (proto != Heap::null_value()) { |
| 357 | proto->Lookup(name, lookup); |
| 358 | } |
| 359 | } |
| 360 | } |
| 361 | |
| 362 | |
| 363 | class LoadInterceptorCompiler BASE_EMBEDDED { |
| 364 | public: |
| 365 | explicit LoadInterceptorCompiler(Register name) : name_(name) {} |
| 366 | |
| 367 | void CompileCacheable(MacroAssembler* masm, |
| 368 | StubCompiler* stub_compiler, |
| 369 | Register receiver, |
| 370 | Register holder, |
| 371 | Register scratch1, |
| 372 | Register scratch2, |
| 373 | JSObject* holder_obj, |
| 374 | LookupResult* lookup, |
| 375 | String* name, |
| 376 | Label* miss_label) { |
| 377 | AccessorInfo* callback = 0; |
| 378 | bool optimize = false; |
| 379 | // So far the most popular follow ups for interceptor loads are FIELD |
| 380 | // and CALLBACKS, so inline only them, other cases may be added |
| 381 | // later. |
| 382 | if (lookup->type() == FIELD) { |
| 383 | optimize = true; |
| 384 | } else if (lookup->type() == CALLBACKS) { |
| 385 | Object* callback_object = lookup->GetCallbackObject(); |
| 386 | if (callback_object->IsAccessorInfo()) { |
| 387 | callback = AccessorInfo::cast(callback_object); |
| 388 | optimize = callback->getter() != NULL; |
| 389 | } |
| 390 | } |
| 391 | |
| 392 | if (!optimize) { |
| 393 | CompileRegular(masm, receiver, holder, scratch2, holder_obj, miss_label); |
| 394 | return; |
| 395 | } |
| 396 | |
| 397 | // Note: starting a frame here makes GC aware of pointers pushed below. |
| 398 | __ EnterInternalFrame(); |
| 399 | |
| 400 | if (lookup->type() == CALLBACKS) { |
| 401 | __ push(receiver); |
| 402 | } |
| 403 | __ push(holder); |
| 404 | __ push(name_); |
| 405 | |
| 406 | CompileCallLoadPropertyWithInterceptor(masm, |
| 407 | receiver, |
| 408 | holder, |
| 409 | name_, |
| 410 | holder_obj); |
| 411 | |
| 412 | Label interceptor_failed; |
| 413 | __ cmp(eax, Factory::no_interceptor_result_sentinel()); |
| 414 | __ j(equal, &interceptor_failed); |
| 415 | __ LeaveInternalFrame(); |
| 416 | __ ret(0); |
| 417 | |
| 418 | __ bind(&interceptor_failed); |
| 419 | __ pop(name_); |
| 420 | __ pop(holder); |
| 421 | if (lookup->type() == CALLBACKS) { |
| 422 | __ pop(receiver); |
| 423 | } |
| 424 | |
| 425 | __ LeaveInternalFrame(); |
| 426 | |
| 427 | if (lookup->type() == FIELD) { |
| 428 | holder = stub_compiler->CheckPrototypes(holder_obj, holder, |
| 429 | lookup->holder(), scratch1, |
| 430 | scratch2, |
| 431 | name, |
| 432 | miss_label); |
| 433 | stub_compiler->GenerateFastPropertyLoad(masm, eax, |
| 434 | holder, lookup->holder(), |
| 435 | lookup->GetFieldIndex()); |
| 436 | __ ret(0); |
| 437 | } else { |
| 438 | ASSERT(lookup->type() == CALLBACKS); |
| 439 | ASSERT(lookup->GetCallbackObject()->IsAccessorInfo()); |
| 440 | ASSERT(callback != NULL); |
| 441 | ASSERT(callback->getter() != NULL); |
| 442 | |
| 443 | Label cleanup; |
| 444 | __ pop(scratch2); |
| 445 | __ push(receiver); |
| 446 | __ push(scratch2); |
| 447 | |
| 448 | holder = stub_compiler->CheckPrototypes(holder_obj, holder, |
| 449 | lookup->holder(), scratch1, |
| 450 | scratch2, |
| 451 | name, |
| 452 | &cleanup); |
| 453 | |
| 454 | __ pop(scratch2); // save old return address |
| 455 | __ push(holder); |
| 456 | __ mov(holder, Immediate(Handle<AccessorInfo>(callback))); |
| 457 | __ push(holder); |
| 458 | __ push(FieldOperand(holder, AccessorInfo::kDataOffset)); |
| 459 | __ push(name_); |
| 460 | __ push(scratch2); // restore old return address |
| 461 | |
| 462 | ExternalReference ref = |
| 463 | ExternalReference(IC_Utility(IC::kLoadCallbackProperty)); |
ager@chromium.org | a1645e2 | 2009-09-09 19:27:10 +0000 | [diff] [blame] | 464 | __ TailCallRuntime(ref, 5, 1); |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 465 | |
| 466 | __ bind(&cleanup); |
| 467 | __ pop(scratch1); |
| 468 | __ pop(scratch2); |
| 469 | __ push(scratch1); |
| 470 | } |
| 471 | } |
| 472 | |
| 473 | |
| 474 | void CompileRegular(MacroAssembler* masm, |
| 475 | Register receiver, |
| 476 | Register holder, |
| 477 | Register scratch, |
| 478 | JSObject* holder_obj, |
| 479 | Label* miss_label) { |
| 480 | __ pop(scratch); // save old return address |
| 481 | PushInterceptorArguments(masm, receiver, holder, name_, holder_obj); |
| 482 | __ push(scratch); // restore old return address |
| 483 | |
| 484 | ExternalReference ref = ExternalReference( |
| 485 | IC_Utility(IC::kLoadPropertyWithInterceptorForLoad)); |
ager@chromium.org | a1645e2 | 2009-09-09 19:27:10 +0000 | [diff] [blame] | 486 | __ TailCallRuntime(ref, 5, 1); |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 487 | } |
| 488 | |
| 489 | private: |
| 490 | Register name_; |
| 491 | }; |
| 492 | |
| 493 | |
| 494 | class CallInterceptorCompiler BASE_EMBEDDED { |
| 495 | public: |
sgjesse@chromium.org | 846fb74 | 2009-12-18 08:56:33 +0000 | [diff] [blame] | 496 | CallInterceptorCompiler(const ParameterCount& arguments, Register name) |
| 497 | : arguments_(arguments), argc_(arguments.immediate()), name_(name) {} |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 498 | |
| 499 | void CompileCacheable(MacroAssembler* masm, |
| 500 | StubCompiler* stub_compiler, |
| 501 | Register receiver, |
| 502 | Register holder, |
| 503 | Register scratch1, |
| 504 | Register scratch2, |
| 505 | JSObject* holder_obj, |
| 506 | LookupResult* lookup, |
| 507 | String* name, |
| 508 | Label* miss_label) { |
| 509 | JSFunction* function = 0; |
| 510 | bool optimize = false; |
| 511 | // So far the most popular case for failed interceptor is |
| 512 | // CONSTANT_FUNCTION sitting below. |
| 513 | if (lookup->type() == CONSTANT_FUNCTION) { |
| 514 | function = lookup->GetConstantFunction(); |
| 515 | // JSArray holder is a special case for call constant function |
| 516 | // (see the corresponding code). |
| 517 | if (function->is_compiled() && !holder_obj->IsJSArray()) { |
| 518 | optimize = true; |
| 519 | } |
| 520 | } |
| 521 | |
| 522 | if (!optimize) { |
| 523 | CompileRegular(masm, receiver, holder, scratch2, holder_obj, miss_label); |
| 524 | return; |
| 525 | } |
| 526 | |
| 527 | __ EnterInternalFrame(); |
sgjesse@chromium.org | 846fb74 | 2009-12-18 08:56:33 +0000 | [diff] [blame] | 528 | __ push(holder); // Save the holder. |
| 529 | __ push(name_); // Save the name. |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 530 | |
sgjesse@chromium.org | 846fb74 | 2009-12-18 08:56:33 +0000 | [diff] [blame] | 531 | CompileCallLoadPropertyWithInterceptor(masm, |
| 532 | receiver, |
| 533 | holder, |
| 534 | name_, |
| 535 | holder_obj); |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 536 | |
sgjesse@chromium.org | 846fb74 | 2009-12-18 08:56:33 +0000 | [diff] [blame] | 537 | __ pop(name_); // Restore the name. |
| 538 | __ pop(receiver); // Restore the holder. |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 539 | __ LeaveInternalFrame(); |
| 540 | |
| 541 | __ cmp(eax, Factory::no_interceptor_result_sentinel()); |
| 542 | Label invoke; |
| 543 | __ j(not_equal, &invoke); |
| 544 | |
| 545 | stub_compiler->CheckPrototypes(holder_obj, receiver, |
| 546 | lookup->holder(), scratch1, |
| 547 | scratch2, |
| 548 | name, |
| 549 | miss_label); |
| 550 | if (lookup->holder()->IsGlobalObject()) { |
| 551 | __ mov(edx, Operand(esp, (argc_ + 1) * kPointerSize)); |
| 552 | __ mov(edx, FieldOperand(edx, GlobalObject::kGlobalReceiverOffset)); |
| 553 | __ mov(Operand(esp, (argc_ + 1) * kPointerSize), edx); |
| 554 | } |
| 555 | |
| 556 | ASSERT(function->is_compiled()); |
| 557 | // Get the function and setup the context. |
| 558 | __ mov(edi, Immediate(Handle<JSFunction>(function))); |
| 559 | __ mov(esi, FieldOperand(edi, JSFunction::kContextOffset)); |
| 560 | |
| 561 | // Jump to the cached code (tail call). |
| 562 | ASSERT(function->is_compiled()); |
| 563 | Handle<Code> code(function->code()); |
| 564 | ParameterCount expected(function->shared()->formal_parameter_count()); |
| 565 | __ InvokeCode(code, expected, arguments_, |
| 566 | RelocInfo::CODE_TARGET, JUMP_FUNCTION); |
| 567 | |
| 568 | __ bind(&invoke); |
| 569 | } |
| 570 | |
| 571 | void CompileRegular(MacroAssembler* masm, |
| 572 | Register receiver, |
| 573 | Register holder, |
| 574 | Register scratch, |
| 575 | JSObject* holder_obj, |
| 576 | Label* miss_label) { |
| 577 | __ EnterInternalFrame(); |
sgjesse@chromium.org | 846fb74 | 2009-12-18 08:56:33 +0000 | [diff] [blame] | 578 | // Save the name_ register across the call. |
| 579 | __ push(name_); |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 580 | |
| 581 | PushInterceptorArguments(masm, |
| 582 | receiver, |
| 583 | holder, |
sgjesse@chromium.org | 846fb74 | 2009-12-18 08:56:33 +0000 | [diff] [blame] | 584 | name_, |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 585 | holder_obj); |
| 586 | |
| 587 | ExternalReference ref = ExternalReference( |
| 588 | IC_Utility(IC::kLoadPropertyWithInterceptorForCall)); |
| 589 | __ mov(eax, Immediate(5)); |
| 590 | __ mov(ebx, Immediate(ref)); |
| 591 | |
ager@chromium.org | a1645e2 | 2009-09-09 19:27:10 +0000 | [diff] [blame] | 592 | CEntryStub stub(1); |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 593 | __ CallStub(&stub); |
| 594 | |
sgjesse@chromium.org | 846fb74 | 2009-12-18 08:56:33 +0000 | [diff] [blame] | 595 | // Restore the name_ register. |
| 596 | __ pop(name_); |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 597 | __ LeaveInternalFrame(); |
| 598 | } |
| 599 | |
| 600 | private: |
| 601 | const ParameterCount& arguments_; |
| 602 | int argc_; |
sgjesse@chromium.org | 846fb74 | 2009-12-18 08:56:33 +0000 | [diff] [blame] | 603 | Register name_; |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 604 | }; |
| 605 | |
| 606 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 607 | void StubCompiler::GenerateLoadMiss(MacroAssembler* masm, Code::Kind kind) { |
| 608 | ASSERT(kind == Code::LOAD_IC || kind == Code::KEYED_LOAD_IC); |
| 609 | Code* code = NULL; |
| 610 | if (kind == Code::LOAD_IC) { |
| 611 | code = Builtins::builtin(Builtins::LoadIC_Miss); |
| 612 | } else { |
| 613 | code = Builtins::builtin(Builtins::KeyedLoadIC_Miss); |
| 614 | } |
| 615 | |
| 616 | Handle<Code> ic(code); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 617 | __ jmp(ic, RelocInfo::CODE_TARGET); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 618 | } |
| 619 | |
| 620 | |
| 621 | void StubCompiler::GenerateStoreField(MacroAssembler* masm, |
kasperl@chromium.org | 1accd57 | 2008-10-07 10:57:21 +0000 | [diff] [blame] | 622 | Builtins::Name storage_extend, |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 623 | JSObject* object, |
| 624 | int index, |
| 625 | Map* transition, |
| 626 | Register receiver_reg, |
| 627 | Register name_reg, |
| 628 | Register scratch, |
| 629 | Label* miss_label) { |
| 630 | // Check that the object isn't a smi. |
| 631 | __ test(receiver_reg, Immediate(kSmiTagMask)); |
| 632 | __ j(zero, miss_label, not_taken); |
| 633 | |
| 634 | // Check that the map of the object hasn't changed. |
| 635 | __ cmp(FieldOperand(receiver_reg, HeapObject::kMapOffset), |
| 636 | Immediate(Handle<Map>(object->map()))); |
| 637 | __ j(not_equal, miss_label, not_taken); |
| 638 | |
| 639 | // Perform global security token check if needed. |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 640 | if (object->IsJSGlobalProxy()) { |
| 641 | __ CheckAccessGlobalProxy(receiver_reg, scratch, miss_label); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 642 | } |
| 643 | |
| 644 | // Stub never generated for non-global objects that require access |
| 645 | // checks. |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 646 | ASSERT(object->IsJSGlobalProxy() || !object->IsAccessCheckNeeded()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 647 | |
kasperl@chromium.org | 1accd57 | 2008-10-07 10:57:21 +0000 | [diff] [blame] | 648 | // Perform map transition for the receiver if necessary. |
| 649 | if ((transition != NULL) && (object->map()->unused_property_fields() == 0)) { |
| 650 | // The properties must be extended before we can store the value. |
ager@chromium.org | 3291210 | 2009-01-16 10:38:43 +0000 | [diff] [blame] | 651 | // We jump to a runtime call that extends the properties array. |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 652 | __ mov(ecx, Immediate(Handle<Map>(transition))); |
kasperl@chromium.org | 1accd57 | 2008-10-07 10:57:21 +0000 | [diff] [blame] | 653 | Handle<Code> ic(Builtins::builtin(storage_extend)); |
| 654 | __ jmp(ic, RelocInfo::CODE_TARGET); |
| 655 | return; |
| 656 | } |
| 657 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 658 | if (transition != NULL) { |
kasperl@chromium.org | 1accd57 | 2008-10-07 10:57:21 +0000 | [diff] [blame] | 659 | // Update the map of the object; no write barrier updating is |
| 660 | // needed because the map is never in new space. |
| 661 | __ mov(FieldOperand(receiver_reg, HeapObject::kMapOffset), |
| 662 | Immediate(Handle<Map>(transition))); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 663 | } |
| 664 | |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 665 | // Adjust for the number of properties stored in the object. Even in the |
| 666 | // face of a transition we can use the old map here because the size of the |
| 667 | // object and the number of in-object properties is not going to change. |
| 668 | index -= object->map()->inobject_properties(); |
| 669 | |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 670 | if (index < 0) { |
| 671 | // Set the property straight into the object. |
| 672 | int offset = object->map()->instance_size() + (index * kPointerSize); |
| 673 | __ mov(FieldOperand(receiver_reg, offset), eax); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 674 | |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 675 | // Update the write barrier for the array address. |
| 676 | // Pass the value being stored in the now unused name_reg. |
| 677 | __ mov(name_reg, Operand(eax)); |
| 678 | __ RecordWrite(receiver_reg, offset, name_reg, scratch); |
| 679 | } else { |
| 680 | // Write to the properties array. |
kasperl@chromium.org | e959c18 | 2009-07-27 08:59:04 +0000 | [diff] [blame] | 681 | int offset = index * kPointerSize + FixedArray::kHeaderSize; |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 682 | // Get the properties array (optimistically). |
| 683 | __ mov(scratch, FieldOperand(receiver_reg, JSObject::kPropertiesOffset)); |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 684 | __ mov(FieldOperand(scratch, offset), eax); |
| 685 | |
| 686 | // Update the write barrier for the array address. |
| 687 | // Pass the value being stored in the now unused name_reg. |
| 688 | __ mov(name_reg, Operand(eax)); |
| 689 | __ RecordWrite(scratch, offset, name_reg, receiver_reg); |
| 690 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 691 | |
| 692 | // Return the value (register eax). |
| 693 | __ ret(0); |
| 694 | } |
| 695 | |
| 696 | |
| 697 | #undef __ |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 698 | #define __ ACCESS_MASM(masm()) |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 699 | |
| 700 | |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 701 | Register StubCompiler::CheckPrototypes(JSObject* object, |
| 702 | Register object_reg, |
| 703 | JSObject* holder, |
| 704 | Register holder_reg, |
| 705 | Register scratch, |
| 706 | String* name, |
| 707 | Label* miss) { |
| 708 | // Check that the maps haven't changed. |
| 709 | Register result = |
| 710 | masm()->CheckMaps(object, object_reg, holder, holder_reg, scratch, miss); |
| 711 | |
| 712 | // If we've skipped any global objects, it's not enough to verify |
| 713 | // that their maps haven't changed. |
| 714 | while (object != holder) { |
| 715 | if (object->IsGlobalObject()) { |
| 716 | GlobalObject* global = GlobalObject::cast(object); |
| 717 | Object* probe = global->EnsurePropertyCell(name); |
| 718 | if (probe->IsFailure()) { |
| 719 | set_failure(Failure::cast(probe)); |
| 720 | return result; |
| 721 | } |
| 722 | JSGlobalPropertyCell* cell = JSGlobalPropertyCell::cast(probe); |
| 723 | ASSERT(cell->value()->IsTheHole()); |
| 724 | __ mov(scratch, Immediate(Handle<Object>(cell))); |
| 725 | __ cmp(FieldOperand(scratch, JSGlobalPropertyCell::kValueOffset), |
| 726 | Immediate(Factory::the_hole_value())); |
| 727 | __ j(not_equal, miss, not_taken); |
| 728 | } |
| 729 | object = JSObject::cast(object->GetPrototype()); |
| 730 | } |
| 731 | |
| 732 | // Return the register containin the holder. |
| 733 | return result; |
| 734 | } |
| 735 | |
| 736 | |
| 737 | void StubCompiler::GenerateLoadField(JSObject* object, |
| 738 | JSObject* holder, |
| 739 | Register receiver, |
| 740 | Register scratch1, |
| 741 | Register scratch2, |
| 742 | int index, |
| 743 | String* name, |
| 744 | Label* miss) { |
| 745 | // Check that the receiver isn't a smi. |
| 746 | __ test(receiver, Immediate(kSmiTagMask)); |
| 747 | __ j(zero, miss, not_taken); |
| 748 | |
| 749 | // Check the prototype chain. |
| 750 | Register reg = |
| 751 | CheckPrototypes(object, receiver, holder, |
| 752 | scratch1, scratch2, name, miss); |
| 753 | |
| 754 | // Get the value from the properties. |
| 755 | GenerateFastPropertyLoad(masm(), eax, reg, holder, index); |
| 756 | __ ret(0); |
| 757 | } |
| 758 | |
| 759 | |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 760 | bool StubCompiler::GenerateLoadCallback(JSObject* object, |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 761 | JSObject* holder, |
| 762 | Register receiver, |
| 763 | Register name_reg, |
| 764 | Register scratch1, |
| 765 | Register scratch2, |
| 766 | AccessorInfo* callback, |
| 767 | String* name, |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 768 | Label* miss, |
| 769 | Failure** failure) { |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 770 | // Check that the receiver isn't a smi. |
| 771 | __ test(receiver, Immediate(kSmiTagMask)); |
| 772 | __ j(zero, miss, not_taken); |
| 773 | |
| 774 | // Check that the maps haven't changed. |
| 775 | Register reg = |
| 776 | CheckPrototypes(object, receiver, holder, |
| 777 | scratch1, scratch2, name, miss); |
| 778 | |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 779 | Handle<AccessorInfo> callback_handle(callback); |
| 780 | |
| 781 | Register other = reg.is(scratch1) ? scratch2 : scratch1; |
| 782 | __ EnterInternalFrame(); |
| 783 | __ PushHandleScope(other); |
| 784 | // Push the stack address where the list of arguments ends |
| 785 | __ mov(other, esp); |
| 786 | __ sub(Operand(other), Immediate(2 * kPointerSize)); |
| 787 | __ push(other); |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 788 | __ push(receiver); // receiver |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 789 | __ push(reg); // holder |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 790 | __ mov(other, Immediate(callback_handle)); |
| 791 | __ push(other); |
| 792 | __ push(FieldOperand(other, AccessorInfo::kDataOffset)); // data |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 793 | __ push(name_reg); // name |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 794 | // Save a pointer to where we pushed the arguments pointer. |
| 795 | // This will be passed as the const Arguments& to the C++ callback. |
| 796 | __ mov(eax, esp); |
| 797 | __ add(Operand(eax), Immediate(5 * kPointerSize)); |
| 798 | __ mov(ebx, esp); |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 799 | |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 800 | // Do call through the api. |
| 801 | ASSERT_EQ(6, ApiGetterEntryStub::kStackSpace); |
| 802 | Address getter_address = v8::ToCData<Address>(callback->getter()); |
| 803 | ApiFunction fun(getter_address); |
| 804 | ApiGetterEntryStub stub(callback_handle, &fun); |
kmillikin@chromium.org | 2d5475f | 2009-12-20 18:15:52 +0000 | [diff] [blame] | 805 | // Emitting a stub call may try to allocate (if the code is not |
| 806 | // already generated). Do not allow the assembler to perform a |
| 807 | // garbage collection but instead return the allocation failure |
| 808 | // object. |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 809 | Object* result = masm()->TryCallStub(&stub); |
| 810 | if (result->IsFailure()) { |
| 811 | *failure = Failure::cast(result); |
| 812 | return false; |
| 813 | } |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 814 | |
| 815 | // We need to avoid using eax since that now holds the result. |
| 816 | Register tmp = other.is(eax) ? reg : other; |
kmillikin@chromium.org | 2d5475f | 2009-12-20 18:15:52 +0000 | [diff] [blame] | 817 | // Emitting PopHandleScope may try to allocate. Do not allow the |
| 818 | // assembler to perform a garbage collection but instead return a |
| 819 | // failure object. |
| 820 | result = masm()->TryPopHandleScope(eax, tmp); |
| 821 | if (result->IsFailure()) { |
| 822 | *failure = Failure::cast(result); |
| 823 | return false; |
| 824 | } |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 825 | __ LeaveInternalFrame(); |
| 826 | |
| 827 | __ ret(0); |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 828 | return true; |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 829 | } |
| 830 | |
| 831 | |
| 832 | void StubCompiler::GenerateLoadConstant(JSObject* object, |
| 833 | JSObject* holder, |
| 834 | Register receiver, |
| 835 | Register scratch1, |
| 836 | Register scratch2, |
| 837 | Object* value, |
| 838 | String* name, |
| 839 | Label* miss) { |
| 840 | // Check that the receiver isn't a smi. |
| 841 | __ test(receiver, Immediate(kSmiTagMask)); |
| 842 | __ j(zero, miss, not_taken); |
| 843 | |
| 844 | // Check that the maps haven't changed. |
| 845 | Register reg = |
| 846 | CheckPrototypes(object, receiver, holder, |
| 847 | scratch1, scratch2, name, miss); |
| 848 | |
| 849 | // Return the constant value. |
| 850 | __ mov(eax, Handle<Object>(value)); |
| 851 | __ ret(0); |
| 852 | } |
| 853 | |
| 854 | |
| 855 | void StubCompiler::GenerateLoadInterceptor(JSObject* object, |
| 856 | JSObject* holder, |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 857 | LookupResult* lookup, |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 858 | Register receiver, |
| 859 | Register name_reg, |
| 860 | Register scratch1, |
| 861 | Register scratch2, |
| 862 | String* name, |
| 863 | Label* miss) { |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 864 | LoadInterceptorCompiler compiler(name_reg); |
| 865 | CompileLoadInterceptor(&compiler, |
| 866 | this, |
| 867 | masm(), |
| 868 | object, |
| 869 | holder, |
| 870 | name, |
| 871 | lookup, |
| 872 | receiver, |
| 873 | scratch1, |
| 874 | scratch2, |
| 875 | miss); |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 876 | } |
| 877 | |
| 878 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 879 | // TODO(1241006): Avoid having lazy compile stubs specialized by the |
| 880 | // number of arguments. It is not needed anymore. |
| 881 | Object* StubCompiler::CompileLazyCompile(Code::Flags flags) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 882 | // Enter an internal frame. |
kasperl@chromium.org | b912362 | 2008-09-17 14:05:56 +0000 | [diff] [blame] | 883 | __ EnterInternalFrame(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 884 | |
| 885 | // Push a copy of the function onto the stack. |
| 886 | __ push(edi); |
| 887 | |
| 888 | __ push(edi); // function is also the parameter to the runtime call |
| 889 | __ CallRuntime(Runtime::kLazyCompile, 1); |
| 890 | __ pop(edi); |
| 891 | |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 892 | // Tear down temporary frame. |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 893 | __ LeaveInternalFrame(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 894 | |
| 895 | // Do a tail-call of the compiled function. |
| 896 | __ lea(ecx, FieldOperand(eax, Code::kHeaderSize)); |
| 897 | __ jmp(Operand(ecx)); |
| 898 | |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 899 | return GetCodeWithFlags(flags, "LazyCompileStub"); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 900 | } |
| 901 | |
| 902 | |
| 903 | Object* CallStubCompiler::CompileCallField(Object* object, |
| 904 | JSObject* holder, |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 905 | int index, |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 906 | String* name) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 907 | // ----------- S t a t e ------------- |
sgjesse@chromium.org | 846fb74 | 2009-12-18 08:56:33 +0000 | [diff] [blame] | 908 | // -- ecx : name |
| 909 | // -- esp[0] : return address |
| 910 | // -- esp[(argc - n) * 4] : arg[n] (zero-based) |
| 911 | // -- ... |
| 912 | // -- esp[(argc + 1) * 4] : receiver |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 913 | // ----------------------------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 914 | Label miss; |
| 915 | |
| 916 | // Get the receiver from the stack. |
| 917 | const int argc = arguments().immediate(); |
| 918 | __ mov(edx, Operand(esp, (argc + 1) * kPointerSize)); |
| 919 | |
| 920 | // Check that the receiver isn't a smi. |
| 921 | __ test(edx, Immediate(kSmiTagMask)); |
| 922 | __ j(zero, &miss, not_taken); |
| 923 | |
| 924 | // Do the right check and compute the holder register. |
| 925 | Register reg = |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 926 | CheckPrototypes(JSObject::cast(object), edx, holder, |
sgjesse@chromium.org | 846fb74 | 2009-12-18 08:56:33 +0000 | [diff] [blame] | 927 | ebx, eax, name, &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 928 | |
ager@chromium.org | 7c537e2 | 2008-10-16 08:43:32 +0000 | [diff] [blame] | 929 | GenerateFastPropertyLoad(masm(), edi, reg, holder, index); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 930 | |
| 931 | // Check that the function really is a function. |
| 932 | __ test(edi, Immediate(kSmiTagMask)); |
| 933 | __ j(zero, &miss, not_taken); |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 934 | __ CmpObjectType(edi, JS_FUNCTION_TYPE, ebx); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 935 | __ j(not_equal, &miss, not_taken); |
| 936 | |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 937 | // Patch the receiver on the stack with the global proxy if |
| 938 | // necessary. |
| 939 | if (object->IsGlobalObject()) { |
| 940 | __ mov(edx, FieldOperand(edx, GlobalObject::kGlobalReceiverOffset)); |
| 941 | __ mov(Operand(esp, (argc + 1) * kPointerSize), edx); |
| 942 | } |
| 943 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 944 | // Invoke the function. |
| 945 | __ InvokeFunction(edi, arguments(), JUMP_FUNCTION); |
| 946 | |
| 947 | // Handle call cache miss. |
| 948 | __ bind(&miss); |
| 949 | Handle<Code> ic = ComputeCallMiss(arguments().immediate()); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 950 | __ jmp(ic, RelocInfo::CODE_TARGET); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 951 | |
| 952 | // Return the generated code. |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 953 | return GetCode(FIELD, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 954 | } |
| 955 | |
| 956 | |
| 957 | Object* CallStubCompiler::CompileCallConstant(Object* object, |
| 958 | JSObject* holder, |
| 959 | JSFunction* function, |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 960 | String* name, |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 961 | CheckType check) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 962 | // ----------- S t a t e ------------- |
sgjesse@chromium.org | 846fb74 | 2009-12-18 08:56:33 +0000 | [diff] [blame] | 963 | // -- ecx : name |
| 964 | // -- esp[0] : return address |
| 965 | // -- esp[(argc - n) * 4] : arg[n] (zero-based) |
| 966 | // -- ... |
| 967 | // -- esp[(argc + 1) * 4] : receiver |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 968 | // ----------------------------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 969 | Label miss; |
| 970 | |
| 971 | // Get the receiver from the stack. |
| 972 | const int argc = arguments().immediate(); |
| 973 | __ mov(edx, Operand(esp, (argc + 1) * kPointerSize)); |
| 974 | |
| 975 | // Check that the receiver isn't a smi. |
| 976 | if (check != NUMBER_CHECK) { |
| 977 | __ test(edx, Immediate(kSmiTagMask)); |
| 978 | __ j(zero, &miss, not_taken); |
| 979 | } |
| 980 | |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 981 | // Make sure that it's okay not to patch the on stack receiver |
| 982 | // unless we're doing a receiver map check. |
| 983 | ASSERT(!object->IsGlobalObject() || check == RECEIVER_MAP_CHECK); |
| 984 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 985 | switch (check) { |
| 986 | case RECEIVER_MAP_CHECK: |
| 987 | // Check that the maps haven't changed. |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 988 | CheckPrototypes(JSObject::cast(object), edx, holder, |
sgjesse@chromium.org | 846fb74 | 2009-12-18 08:56:33 +0000 | [diff] [blame] | 989 | ebx, eax, name, &miss); |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 990 | |
| 991 | // Patch the receiver on the stack with the global proxy if |
| 992 | // necessary. |
| 993 | if (object->IsGlobalObject()) { |
| 994 | __ mov(edx, FieldOperand(edx, GlobalObject::kGlobalReceiverOffset)); |
| 995 | __ mov(Operand(esp, (argc + 1) * kPointerSize), edx); |
| 996 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 997 | break; |
| 998 | |
| 999 | case STRING_CHECK: |
| 1000 | // Check that the object is a two-byte string or a symbol. |
sgjesse@chromium.org | 846fb74 | 2009-12-18 08:56:33 +0000 | [diff] [blame] | 1001 | __ mov(eax, FieldOperand(edx, HeapObject::kMapOffset)); |
| 1002 | __ movzx_b(eax, FieldOperand(eax, Map::kInstanceTypeOffset)); |
| 1003 | __ cmp(eax, FIRST_NONSTRING_TYPE); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1004 | __ j(above_equal, &miss, not_taken); |
| 1005 | // Check that the maps starting from the prototype haven't changed. |
| 1006 | GenerateLoadGlobalFunctionPrototype(masm(), |
| 1007 | Context::STRING_FUNCTION_INDEX, |
sgjesse@chromium.org | 846fb74 | 2009-12-18 08:56:33 +0000 | [diff] [blame] | 1008 | eax); |
| 1009 | CheckPrototypes(JSObject::cast(object->GetPrototype()), eax, holder, |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1010 | ebx, edx, name, &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1011 | break; |
| 1012 | |
| 1013 | case NUMBER_CHECK: { |
| 1014 | Label fast; |
| 1015 | // Check that the object is a smi or a heap number. |
| 1016 | __ test(edx, Immediate(kSmiTagMask)); |
| 1017 | __ j(zero, &fast, taken); |
sgjesse@chromium.org | 846fb74 | 2009-12-18 08:56:33 +0000 | [diff] [blame] | 1018 | __ CmpObjectType(edx, HEAP_NUMBER_TYPE, eax); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1019 | __ j(not_equal, &miss, not_taken); |
| 1020 | __ bind(&fast); |
| 1021 | // Check that the maps starting from the prototype haven't changed. |
| 1022 | GenerateLoadGlobalFunctionPrototype(masm(), |
| 1023 | Context::NUMBER_FUNCTION_INDEX, |
sgjesse@chromium.org | 846fb74 | 2009-12-18 08:56:33 +0000 | [diff] [blame] | 1024 | eax); |
| 1025 | CheckPrototypes(JSObject::cast(object->GetPrototype()), eax, holder, |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1026 | ebx, edx, name, &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1027 | break; |
| 1028 | } |
| 1029 | |
| 1030 | case BOOLEAN_CHECK: { |
| 1031 | Label fast; |
| 1032 | // Check that the object is a boolean. |
| 1033 | __ cmp(edx, Factory::true_value()); |
| 1034 | __ j(equal, &fast, taken); |
| 1035 | __ cmp(edx, Factory::false_value()); |
| 1036 | __ j(not_equal, &miss, not_taken); |
| 1037 | __ bind(&fast); |
| 1038 | // Check that the maps starting from the prototype haven't changed. |
| 1039 | GenerateLoadGlobalFunctionPrototype(masm(), |
| 1040 | Context::BOOLEAN_FUNCTION_INDEX, |
sgjesse@chromium.org | 846fb74 | 2009-12-18 08:56:33 +0000 | [diff] [blame] | 1041 | eax); |
| 1042 | CheckPrototypes(JSObject::cast(object->GetPrototype()), eax, holder, |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1043 | ebx, edx, name, &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1044 | break; |
| 1045 | } |
| 1046 | |
| 1047 | case JSARRAY_HAS_FAST_ELEMENTS_CHECK: |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1048 | CheckPrototypes(JSObject::cast(object), edx, holder, |
sgjesse@chromium.org | 846fb74 | 2009-12-18 08:56:33 +0000 | [diff] [blame] | 1049 | ebx, eax, name, &miss); |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 1050 | // Make sure object->HasFastElements(). |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1051 | // Get the elements array of the object. |
| 1052 | __ mov(ebx, FieldOperand(edx, JSObject::kElementsOffset)); |
| 1053 | // Check that the object is in fast mode (not dictionary). |
| 1054 | __ cmp(FieldOperand(ebx, HeapObject::kMapOffset), |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 1055 | Immediate(Factory::fixed_array_map())); |
| 1056 | __ j(not_equal, &miss, not_taken); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1057 | break; |
| 1058 | |
| 1059 | default: |
| 1060 | UNREACHABLE(); |
| 1061 | } |
| 1062 | |
| 1063 | // Get the function and setup the context. |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1064 | __ mov(edi, Immediate(Handle<JSFunction>(function))); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1065 | __ mov(esi, FieldOperand(edi, JSFunction::kContextOffset)); |
| 1066 | |
| 1067 | // Jump to the cached code (tail call). |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1068 | ASSERT(function->is_compiled()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1069 | Handle<Code> code(function->code()); |
| 1070 | ParameterCount expected(function->shared()->formal_parameter_count()); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 1071 | __ InvokeCode(code, expected, arguments(), |
| 1072 | RelocInfo::CODE_TARGET, JUMP_FUNCTION); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1073 | |
| 1074 | // Handle call cache miss. |
| 1075 | __ bind(&miss); |
| 1076 | Handle<Code> ic = ComputeCallMiss(arguments().immediate()); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 1077 | __ jmp(ic, RelocInfo::CODE_TARGET); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1078 | |
| 1079 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1080 | String* function_name = NULL; |
| 1081 | if (function->shared()->name()->IsString()) { |
| 1082 | function_name = String::cast(function->shared()->name()); |
| 1083 | } |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1084 | return GetCode(CONSTANT_FUNCTION, function_name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1085 | } |
| 1086 | |
| 1087 | |
| 1088 | Object* CallStubCompiler::CompileCallInterceptor(Object* object, |
| 1089 | JSObject* holder, |
| 1090 | String* name) { |
| 1091 | // ----------- S t a t e ------------- |
sgjesse@chromium.org | 846fb74 | 2009-12-18 08:56:33 +0000 | [diff] [blame] | 1092 | // -- ecx : name |
| 1093 | // -- esp[0] : return address |
| 1094 | // -- esp[(argc - n) * 4] : arg[n] (zero-based) |
| 1095 | // -- ... |
| 1096 | // -- esp[(argc + 1) * 4] : receiver |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1097 | // ----------------------------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1098 | Label miss; |
| 1099 | |
| 1100 | // Get the number of arguments. |
| 1101 | const int argc = arguments().immediate(); |
| 1102 | |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 1103 | LookupResult lookup; |
| 1104 | LookupPostInterceptor(holder, name, &lookup); |
| 1105 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1106 | // Get the receiver from the stack. |
| 1107 | __ mov(edx, Operand(esp, (argc + 1) * kPointerSize)); |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 1108 | |
sgjesse@chromium.org | 846fb74 | 2009-12-18 08:56:33 +0000 | [diff] [blame] | 1109 | CallInterceptorCompiler compiler(arguments(), ecx); |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 1110 | CompileLoadInterceptor(&compiler, |
| 1111 | this, |
| 1112 | masm(), |
| 1113 | JSObject::cast(object), |
| 1114 | holder, |
| 1115 | name, |
| 1116 | &lookup, |
| 1117 | edx, |
| 1118 | ebx, |
sgjesse@chromium.org | 846fb74 | 2009-12-18 08:56:33 +0000 | [diff] [blame] | 1119 | edi, |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 1120 | &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1121 | |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 1122 | // Restore receiver. |
| 1123 | __ mov(edx, Operand(esp, (argc + 1) * kPointerSize)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1124 | |
| 1125 | // Check that the function really is a function. |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 1126 | __ test(eax, Immediate(kSmiTagMask)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1127 | __ j(zero, &miss, not_taken); |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 1128 | __ CmpObjectType(eax, JS_FUNCTION_TYPE, ebx); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1129 | __ j(not_equal, &miss, not_taken); |
| 1130 | |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 1131 | // Patch the receiver on the stack with the global proxy if |
| 1132 | // necessary. |
| 1133 | if (object->IsGlobalObject()) { |
| 1134 | __ mov(edx, FieldOperand(edx, GlobalObject::kGlobalReceiverOffset)); |
| 1135 | __ mov(Operand(esp, (argc + 1) * kPointerSize), edx); |
| 1136 | } |
| 1137 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1138 | // Invoke the function. |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 1139 | __ mov(edi, eax); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1140 | __ InvokeFunction(edi, arguments(), JUMP_FUNCTION); |
| 1141 | |
| 1142 | // Handle load cache miss. |
| 1143 | __ bind(&miss); |
| 1144 | Handle<Code> ic = ComputeCallMiss(argc); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 1145 | __ jmp(ic, RelocInfo::CODE_TARGET); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1146 | |
| 1147 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1148 | return GetCode(INTERCEPTOR, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1149 | } |
| 1150 | |
| 1151 | |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1152 | Object* CallStubCompiler::CompileCallGlobal(JSObject* object, |
| 1153 | GlobalObject* holder, |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1154 | JSGlobalPropertyCell* cell, |
| 1155 | JSFunction* function, |
| 1156 | String* name) { |
| 1157 | // ----------- S t a t e ------------- |
sgjesse@chromium.org | 846fb74 | 2009-12-18 08:56:33 +0000 | [diff] [blame] | 1158 | // -- ecx : name |
| 1159 | // -- esp[0] : return address |
| 1160 | // -- esp[(argc - n) * 4] : arg[n] (zero-based) |
| 1161 | // -- ... |
| 1162 | // -- esp[(argc + 1) * 4] : receiver |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1163 | // ----------------------------------- |
| 1164 | Label miss; |
| 1165 | |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1166 | // Get the number of arguments. |
| 1167 | const int argc = arguments().immediate(); |
| 1168 | |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1169 | // Get the receiver from the stack. |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1170 | __ mov(edx, Operand(esp, (argc + 1) * kPointerSize)); |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1171 | |
| 1172 | // If the object is the holder then we know that it's a global |
| 1173 | // object which can only happen for contextual calls. In this case, |
| 1174 | // the receiver cannot be a smi. |
| 1175 | if (object != holder) { |
| 1176 | __ test(edx, Immediate(kSmiTagMask)); |
| 1177 | __ j(zero, &miss, not_taken); |
| 1178 | } |
| 1179 | |
| 1180 | // Check that the maps haven't changed. |
sgjesse@chromium.org | 846fb74 | 2009-12-18 08:56:33 +0000 | [diff] [blame] | 1181 | CheckPrototypes(object, edx, holder, ebx, eax, name, &miss); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1182 | |
| 1183 | // Get the value from the cell. |
| 1184 | __ mov(edi, Immediate(Handle<JSGlobalPropertyCell>(cell))); |
| 1185 | __ mov(edi, FieldOperand(edi, JSGlobalPropertyCell::kValueOffset)); |
| 1186 | |
| 1187 | // Check that the cell contains the same function. |
sgjesse@chromium.org | 846fb74 | 2009-12-18 08:56:33 +0000 | [diff] [blame] | 1188 | if (Heap::InNewSpace(function)) { |
| 1189 | // We can't embed a pointer to a function in new space so we have |
| 1190 | // to verify that the shared function info is unchanged. This has |
| 1191 | // the nice side effect that multiple closures based on the same |
| 1192 | // function can all use this call IC. Before we load through the |
| 1193 | // function, we have to verify that it still is a function. |
| 1194 | __ test(edi, Immediate(kSmiTagMask)); |
| 1195 | __ j(zero, &miss, not_taken); |
| 1196 | __ CmpObjectType(edi, JS_FUNCTION_TYPE, ebx); |
| 1197 | __ j(not_equal, &miss, not_taken); |
| 1198 | |
| 1199 | // Check the shared function info. Make sure it hasn't changed. |
| 1200 | __ cmp(FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset), |
| 1201 | Immediate(Handle<SharedFunctionInfo>(function->shared()))); |
| 1202 | __ j(not_equal, &miss, not_taken); |
| 1203 | } else { |
| 1204 | __ cmp(Operand(edi), Immediate(Handle<JSFunction>(function))); |
| 1205 | __ j(not_equal, &miss, not_taken); |
| 1206 | } |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1207 | |
| 1208 | // Patch the receiver on the stack with the global proxy. |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1209 | if (object->IsGlobalObject()) { |
| 1210 | __ mov(edx, FieldOperand(edx, GlobalObject::kGlobalReceiverOffset)); |
| 1211 | __ mov(Operand(esp, (argc + 1) * kPointerSize), edx); |
| 1212 | } |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1213 | |
| 1214 | // Setup the context (function already in edi). |
| 1215 | __ mov(esi, FieldOperand(edi, JSFunction::kContextOffset)); |
| 1216 | |
| 1217 | // Jump to the cached code (tail call). |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 1218 | __ IncrementCounter(&Counters::call_global_inline, 1); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1219 | ASSERT(function->is_compiled()); |
| 1220 | Handle<Code> code(function->code()); |
| 1221 | ParameterCount expected(function->shared()->formal_parameter_count()); |
| 1222 | __ InvokeCode(code, expected, arguments(), |
| 1223 | RelocInfo::CODE_TARGET, JUMP_FUNCTION); |
| 1224 | |
| 1225 | // Handle call cache miss. |
| 1226 | __ bind(&miss); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1227 | __ IncrementCounter(&Counters::call_global_inline_miss, 1); |
| 1228 | Handle<Code> ic = ComputeCallMiss(arguments().immediate()); |
| 1229 | __ jmp(ic, RelocInfo::CODE_TARGET); |
| 1230 | |
| 1231 | // Return the generated code. |
| 1232 | return GetCode(NORMAL, name); |
| 1233 | } |
| 1234 | |
| 1235 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1236 | Object* StoreStubCompiler::CompileStoreField(JSObject* object, |
| 1237 | int index, |
| 1238 | Map* transition, |
| 1239 | String* name) { |
| 1240 | // ----------- S t a t e ------------- |
| 1241 | // -- eax : value |
| 1242 | // -- ecx : name |
| 1243 | // -- esp[0] : return address |
| 1244 | // -- esp[4] : receiver |
| 1245 | // ----------------------------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1246 | Label miss; |
| 1247 | |
| 1248 | // Get the object from the stack. |
| 1249 | __ mov(ebx, Operand(esp, 1 * kPointerSize)); |
| 1250 | |
| 1251 | // Generate store field code. Trashes the name register. |
kasperl@chromium.org | 1accd57 | 2008-10-07 10:57:21 +0000 | [diff] [blame] | 1252 | GenerateStoreField(masm(), |
| 1253 | Builtins::StoreIC_ExtendStorage, |
| 1254 | object, |
| 1255 | index, |
| 1256 | transition, |
| 1257 | ebx, ecx, edx, |
| 1258 | &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1259 | |
| 1260 | // Handle store cache miss. |
| 1261 | __ bind(&miss); |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1262 | __ mov(ecx, Immediate(Handle<String>(name))); // restore name |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1263 | Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss)); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 1264 | __ jmp(ic, RelocInfo::CODE_TARGET); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1265 | |
| 1266 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1267 | return GetCode(transition == NULL ? FIELD : MAP_TRANSITION, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1268 | } |
| 1269 | |
| 1270 | |
| 1271 | Object* StoreStubCompiler::CompileStoreCallback(JSObject* object, |
| 1272 | AccessorInfo* callback, |
| 1273 | String* name) { |
| 1274 | // ----------- S t a t e ------------- |
| 1275 | // -- eax : value |
| 1276 | // -- ecx : name |
| 1277 | // -- esp[0] : return address |
| 1278 | // -- esp[4] : receiver |
| 1279 | // ----------------------------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1280 | Label miss; |
| 1281 | |
| 1282 | // Get the object from the stack. |
| 1283 | __ mov(ebx, Operand(esp, 1 * kPointerSize)); |
| 1284 | |
| 1285 | // Check that the object isn't a smi. |
| 1286 | __ test(ebx, Immediate(kSmiTagMask)); |
| 1287 | __ j(zero, &miss, not_taken); |
| 1288 | |
| 1289 | // Check that the map of the object hasn't changed. |
| 1290 | __ cmp(FieldOperand(ebx, HeapObject::kMapOffset), |
| 1291 | Immediate(Handle<Map>(object->map()))); |
| 1292 | __ j(not_equal, &miss, not_taken); |
| 1293 | |
| 1294 | // Perform global security token check if needed. |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 1295 | if (object->IsJSGlobalProxy()) { |
| 1296 | __ CheckAccessGlobalProxy(ebx, edx, &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1297 | } |
| 1298 | |
| 1299 | // Stub never generated for non-global objects that require access |
| 1300 | // checks. |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 1301 | ASSERT(object->IsJSGlobalProxy() || !object->IsAccessCheckNeeded()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1302 | |
| 1303 | __ pop(ebx); // remove the return address |
| 1304 | __ push(Operand(esp, 0)); // receiver |
| 1305 | __ push(Immediate(Handle<AccessorInfo>(callback))); // callback info |
| 1306 | __ push(ecx); // name |
| 1307 | __ push(eax); // value |
| 1308 | __ push(ebx); // restore return address |
| 1309 | |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 1310 | // Do tail-call to the runtime system. |
| 1311 | ExternalReference store_callback_property = |
| 1312 | ExternalReference(IC_Utility(IC::kStoreCallbackProperty)); |
ager@chromium.org | a1645e2 | 2009-09-09 19:27:10 +0000 | [diff] [blame] | 1313 | __ TailCallRuntime(store_callback_property, 4, 1); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1314 | |
| 1315 | // Handle store cache miss. |
| 1316 | __ bind(&miss); |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1317 | __ mov(ecx, Immediate(Handle<String>(name))); // restore name |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1318 | Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss)); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 1319 | __ jmp(ic, RelocInfo::CODE_TARGET); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1320 | |
| 1321 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1322 | return GetCode(CALLBACKS, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1323 | } |
| 1324 | |
| 1325 | |
| 1326 | Object* StoreStubCompiler::CompileStoreInterceptor(JSObject* receiver, |
| 1327 | String* name) { |
| 1328 | // ----------- S t a t e ------------- |
| 1329 | // -- eax : value |
| 1330 | // -- ecx : name |
| 1331 | // -- esp[0] : return address |
| 1332 | // -- esp[4] : receiver |
| 1333 | // ----------------------------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1334 | Label miss; |
| 1335 | |
| 1336 | // Get the object from the stack. |
| 1337 | __ mov(ebx, Operand(esp, 1 * kPointerSize)); |
| 1338 | |
| 1339 | // Check that the object isn't a smi. |
| 1340 | __ test(ebx, Immediate(kSmiTagMask)); |
| 1341 | __ j(zero, &miss, not_taken); |
| 1342 | |
| 1343 | // Check that the map of the object hasn't changed. |
| 1344 | __ cmp(FieldOperand(ebx, HeapObject::kMapOffset), |
| 1345 | Immediate(Handle<Map>(receiver->map()))); |
| 1346 | __ j(not_equal, &miss, not_taken); |
| 1347 | |
| 1348 | // Perform global security token check if needed. |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 1349 | if (receiver->IsJSGlobalProxy()) { |
| 1350 | __ CheckAccessGlobalProxy(ebx, edx, &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1351 | } |
| 1352 | |
| 1353 | // Stub never generated for non-global objects that require access |
| 1354 | // checks. |
kasperl@chromium.org | 5a8ca6c | 2008-10-23 13:57:19 +0000 | [diff] [blame] | 1355 | ASSERT(receiver->IsJSGlobalProxy() || !receiver->IsAccessCheckNeeded()); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1356 | |
| 1357 | __ pop(ebx); // remove the return address |
| 1358 | __ push(Operand(esp, 0)); // receiver |
| 1359 | __ push(ecx); // name |
| 1360 | __ push(eax); // value |
| 1361 | __ push(ebx); // restore return address |
| 1362 | |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 1363 | // Do tail-call to the runtime system. |
| 1364 | ExternalReference store_ic_property = |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1365 | ExternalReference(IC_Utility(IC::kStoreInterceptorProperty)); |
ager@chromium.org | a1645e2 | 2009-09-09 19:27:10 +0000 | [diff] [blame] | 1366 | __ TailCallRuntime(store_ic_property, 3, 1); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1367 | |
| 1368 | // Handle store cache miss. |
| 1369 | __ bind(&miss); |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1370 | __ mov(ecx, Immediate(Handle<String>(name))); // restore name |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1371 | Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss)); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 1372 | __ jmp(ic, RelocInfo::CODE_TARGET); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1373 | |
| 1374 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1375 | return GetCode(INTERCEPTOR, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1376 | } |
| 1377 | |
| 1378 | |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1379 | Object* StoreStubCompiler::CompileStoreGlobal(GlobalObject* object, |
| 1380 | JSGlobalPropertyCell* cell, |
| 1381 | String* name) { |
| 1382 | // ----------- S t a t e ------------- |
| 1383 | // -- eax : value |
| 1384 | // -- ecx : name |
| 1385 | // -- esp[0] : return address |
| 1386 | // -- esp[4] : receiver |
| 1387 | // ----------------------------------- |
| 1388 | Label miss; |
| 1389 | |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1390 | // Check that the map of the global has not changed. |
kasperl@chromium.org | e959c18 | 2009-07-27 08:59:04 +0000 | [diff] [blame] | 1391 | __ mov(ebx, Operand(esp, kPointerSize)); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1392 | __ cmp(FieldOperand(ebx, HeapObject::kMapOffset), |
| 1393 | Immediate(Handle<Map>(object->map()))); |
| 1394 | __ j(not_equal, &miss, not_taken); |
| 1395 | |
| 1396 | // Store the value in the cell. |
| 1397 | __ mov(ecx, Immediate(Handle<JSGlobalPropertyCell>(cell))); |
| 1398 | __ mov(FieldOperand(ecx, JSGlobalPropertyCell::kValueOffset), eax); |
| 1399 | |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1400 | // Return the value (register eax). |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 1401 | __ IncrementCounter(&Counters::named_store_global_inline, 1); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1402 | __ ret(0); |
| 1403 | |
| 1404 | // Handle store cache miss. |
| 1405 | __ bind(&miss); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1406 | __ IncrementCounter(&Counters::named_store_global_inline_miss, 1); |
| 1407 | Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss)); |
| 1408 | __ jmp(ic, RelocInfo::CODE_TARGET); |
| 1409 | |
| 1410 | // Return the generated code. |
| 1411 | return GetCode(NORMAL, name); |
| 1412 | } |
| 1413 | |
| 1414 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1415 | Object* KeyedStoreStubCompiler::CompileStoreField(JSObject* object, |
| 1416 | int index, |
| 1417 | Map* transition, |
| 1418 | String* name) { |
| 1419 | // ----------- S t a t e ------------- |
| 1420 | // -- eax : value |
| 1421 | // -- esp[0] : return address |
| 1422 | // -- esp[4] : key |
| 1423 | // -- esp[8] : receiver |
| 1424 | // ----------------------------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1425 | Label miss; |
| 1426 | |
| 1427 | __ IncrementCounter(&Counters::keyed_store_field, 1); |
| 1428 | |
| 1429 | // Get the name from the stack. |
| 1430 | __ mov(ecx, Operand(esp, 1 * kPointerSize)); |
| 1431 | // Check that the name has not changed. |
| 1432 | __ cmp(Operand(ecx), Immediate(Handle<String>(name))); |
| 1433 | __ j(not_equal, &miss, not_taken); |
| 1434 | |
| 1435 | // Get the object from the stack. |
| 1436 | __ mov(ebx, Operand(esp, 2 * kPointerSize)); |
| 1437 | |
| 1438 | // Generate store field code. Trashes the name register. |
kasperl@chromium.org | 1accd57 | 2008-10-07 10:57:21 +0000 | [diff] [blame] | 1439 | GenerateStoreField(masm(), |
| 1440 | Builtins::KeyedStoreIC_ExtendStorage, |
| 1441 | object, |
| 1442 | index, |
| 1443 | transition, |
| 1444 | ebx, ecx, edx, |
| 1445 | &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1446 | |
| 1447 | // Handle store cache miss. |
| 1448 | __ bind(&miss); |
| 1449 | __ DecrementCounter(&Counters::keyed_store_field, 1); |
| 1450 | Handle<Code> ic(Builtins::builtin(Builtins::KeyedStoreIC_Miss)); |
ager@chromium.org | 236ad96 | 2008-09-25 09:45:57 +0000 | [diff] [blame] | 1451 | __ jmp(ic, RelocInfo::CODE_TARGET); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1452 | |
| 1453 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1454 | return GetCode(transition == NULL ? FIELD : MAP_TRANSITION, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1455 | } |
| 1456 | |
| 1457 | |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1458 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1459 | Object* LoadStubCompiler::CompileLoadField(JSObject* object, |
| 1460 | JSObject* holder, |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1461 | int index, |
| 1462 | String* name) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1463 | // ----------- S t a t e ------------- |
| 1464 | // -- ecx : name |
| 1465 | // -- esp[0] : return address |
| 1466 | // -- esp[4] : receiver |
| 1467 | // ----------------------------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1468 | Label miss; |
| 1469 | |
kasperl@chromium.org | e959c18 | 2009-07-27 08:59:04 +0000 | [diff] [blame] | 1470 | __ mov(eax, Operand(esp, kPointerSize)); |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1471 | GenerateLoadField(object, holder, eax, ebx, edx, index, name, &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1472 | __ bind(&miss); |
| 1473 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
| 1474 | |
| 1475 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1476 | return GetCode(FIELD, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1477 | } |
| 1478 | |
| 1479 | |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 1480 | Object* LoadStubCompiler::CompileLoadCallback(String* name, |
| 1481 | JSObject* object, |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1482 | JSObject* holder, |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 1483 | AccessorInfo* callback) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1484 | // ----------- S t a t e ------------- |
| 1485 | // -- ecx : name |
| 1486 | // -- esp[0] : return address |
| 1487 | // -- esp[4] : receiver |
| 1488 | // ----------------------------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1489 | Label miss; |
| 1490 | |
kasperl@chromium.org | e959c18 | 2009-07-27 08:59:04 +0000 | [diff] [blame] | 1491 | __ mov(eax, Operand(esp, kPointerSize)); |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 1492 | Failure* failure = Failure::InternalError(); |
| 1493 | bool success = GenerateLoadCallback(object, holder, eax, ecx, ebx, edx, |
| 1494 | callback, name, &miss, &failure); |
| 1495 | if (!success) return failure; |
| 1496 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1497 | __ bind(&miss); |
| 1498 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
| 1499 | |
| 1500 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1501 | return GetCode(CALLBACKS, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1502 | } |
| 1503 | |
| 1504 | |
| 1505 | Object* LoadStubCompiler::CompileLoadConstant(JSObject* object, |
| 1506 | JSObject* holder, |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1507 | Object* value, |
| 1508 | String* name) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1509 | // ----------- S t a t e ------------- |
| 1510 | // -- ecx : name |
| 1511 | // -- esp[0] : return address |
| 1512 | // -- esp[4] : receiver |
| 1513 | // ----------------------------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1514 | Label miss; |
| 1515 | |
kasperl@chromium.org | e959c18 | 2009-07-27 08:59:04 +0000 | [diff] [blame] | 1516 | __ mov(eax, Operand(esp, kPointerSize)); |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1517 | GenerateLoadConstant(object, holder, eax, ebx, edx, value, name, &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1518 | __ bind(&miss); |
| 1519 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
| 1520 | |
| 1521 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1522 | return GetCode(CONSTANT_FUNCTION, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1523 | } |
| 1524 | |
| 1525 | |
| 1526 | Object* LoadStubCompiler::CompileLoadInterceptor(JSObject* receiver, |
| 1527 | JSObject* holder, |
| 1528 | String* name) { |
| 1529 | // ----------- S t a t e ------------- |
| 1530 | // -- ecx : name |
| 1531 | // -- esp[0] : return address |
| 1532 | // -- esp[4] : receiver |
| 1533 | // ----------------------------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1534 | Label miss; |
| 1535 | |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 1536 | LookupResult lookup; |
| 1537 | LookupPostInterceptor(holder, name, &lookup); |
| 1538 | |
kasperl@chromium.org | e959c18 | 2009-07-27 08:59:04 +0000 | [diff] [blame] | 1539 | __ mov(eax, Operand(esp, kPointerSize)); |
ager@chromium.org | e2902be | 2009-06-08 12:21:35 +0000 | [diff] [blame] | 1540 | // TODO(368): Compile in the whole chain: all the interceptors in |
| 1541 | // prototypes and ultimate answer. |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1542 | GenerateLoadInterceptor(receiver, |
ager@chromium.org | e2902be | 2009-06-08 12:21:35 +0000 | [diff] [blame] | 1543 | holder, |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 1544 | &lookup, |
ager@chromium.org | e2902be | 2009-06-08 12:21:35 +0000 | [diff] [blame] | 1545 | eax, |
| 1546 | ecx, |
| 1547 | edx, |
| 1548 | ebx, |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1549 | name, |
ager@chromium.org | e2902be | 2009-06-08 12:21:35 +0000 | [diff] [blame] | 1550 | &miss); |
| 1551 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1552 | __ bind(&miss); |
| 1553 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
| 1554 | |
| 1555 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1556 | return GetCode(INTERCEPTOR, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1557 | } |
| 1558 | |
| 1559 | |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1560 | Object* LoadStubCompiler::CompileLoadGlobal(JSObject* object, |
| 1561 | GlobalObject* holder, |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1562 | JSGlobalPropertyCell* cell, |
| 1563 | String* name, |
| 1564 | bool is_dont_delete) { |
| 1565 | // ----------- S t a t e ------------- |
| 1566 | // -- ecx : name |
| 1567 | // -- esp[0] : return address |
| 1568 | // -- esp[4] : receiver |
| 1569 | // ----------------------------------- |
| 1570 | Label miss; |
| 1571 | |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1572 | // Get the receiver from the stack. |
kasperl@chromium.org | e959c18 | 2009-07-27 08:59:04 +0000 | [diff] [blame] | 1573 | __ mov(eax, Operand(esp, kPointerSize)); |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1574 | |
| 1575 | // If the object is the holder then we know that it's a global |
| 1576 | // object which can only happen for contextual loads. In this case, |
| 1577 | // the receiver cannot be a smi. |
| 1578 | if (object != holder) { |
| 1579 | __ test(eax, Immediate(kSmiTagMask)); |
| 1580 | __ j(zero, &miss, not_taken); |
| 1581 | } |
| 1582 | |
| 1583 | // Check that the maps haven't changed. |
| 1584 | CheckPrototypes(object, eax, holder, ebx, edx, name, &miss); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1585 | |
| 1586 | // Get the value from the cell. |
| 1587 | __ mov(eax, Immediate(Handle<JSGlobalPropertyCell>(cell))); |
| 1588 | __ mov(eax, FieldOperand(eax, JSGlobalPropertyCell::kValueOffset)); |
| 1589 | |
| 1590 | // Check for deleted property if property can actually be deleted. |
| 1591 | if (!is_dont_delete) { |
| 1592 | __ cmp(eax, Factory::the_hole_value()); |
| 1593 | __ j(equal, &miss, not_taken); |
kasperl@chromium.org | 68ac009 | 2009-07-09 06:00:35 +0000 | [diff] [blame] | 1594 | } else if (FLAG_debug_code) { |
| 1595 | __ cmp(eax, Factory::the_hole_value()); |
| 1596 | __ Check(not_equal, "DontDelete cells can't contain the hole"); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1597 | } |
| 1598 | |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 1599 | __ IncrementCounter(&Counters::named_load_global_inline, 1); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1600 | __ ret(0); |
| 1601 | |
| 1602 | __ bind(&miss); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 1603 | __ IncrementCounter(&Counters::named_load_global_inline_miss, 1); |
| 1604 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
| 1605 | |
| 1606 | // Return the generated code. |
| 1607 | return GetCode(NORMAL, name); |
| 1608 | } |
| 1609 | |
| 1610 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1611 | Object* KeyedLoadStubCompiler::CompileLoadField(String* name, |
| 1612 | JSObject* receiver, |
| 1613 | JSObject* holder, |
| 1614 | int index) { |
| 1615 | // ----------- S t a t e ------------- |
| 1616 | // -- esp[0] : return address |
| 1617 | // -- esp[4] : name |
| 1618 | // -- esp[8] : receiver |
| 1619 | // ----------------------------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1620 | Label miss; |
| 1621 | |
kasperl@chromium.org | e959c18 | 2009-07-27 08:59:04 +0000 | [diff] [blame] | 1622 | __ mov(eax, Operand(esp, kPointerSize)); |
| 1623 | __ mov(ecx, Operand(esp, 2 * kPointerSize)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1624 | __ IncrementCounter(&Counters::keyed_load_field, 1); |
| 1625 | |
| 1626 | // Check that the name has not changed. |
| 1627 | __ cmp(Operand(eax), Immediate(Handle<String>(name))); |
| 1628 | __ j(not_equal, &miss, not_taken); |
| 1629 | |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1630 | GenerateLoadField(receiver, holder, ecx, ebx, edx, index, name, &miss); |
| 1631 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1632 | __ bind(&miss); |
| 1633 | __ DecrementCounter(&Counters::keyed_load_field, 1); |
| 1634 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 1635 | |
| 1636 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1637 | return GetCode(FIELD, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1638 | } |
| 1639 | |
| 1640 | |
| 1641 | Object* KeyedLoadStubCompiler::CompileLoadCallback(String* name, |
| 1642 | JSObject* receiver, |
| 1643 | JSObject* holder, |
| 1644 | AccessorInfo* callback) { |
| 1645 | // ----------- S t a t e ------------- |
| 1646 | // -- esp[0] : return address |
| 1647 | // -- esp[4] : name |
| 1648 | // -- esp[8] : receiver |
| 1649 | // ----------------------------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1650 | Label miss; |
| 1651 | |
kasperl@chromium.org | e959c18 | 2009-07-27 08:59:04 +0000 | [diff] [blame] | 1652 | __ mov(eax, Operand(esp, kPointerSize)); |
| 1653 | __ mov(ecx, Operand(esp, 2 * kPointerSize)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1654 | __ IncrementCounter(&Counters::keyed_load_callback, 1); |
| 1655 | |
| 1656 | // Check that the name has not changed. |
| 1657 | __ cmp(Operand(eax), Immediate(Handle<String>(name))); |
| 1658 | __ j(not_equal, &miss, not_taken); |
| 1659 | |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 1660 | Failure* failure = Failure::InternalError(); |
| 1661 | bool success = GenerateLoadCallback(receiver, holder, ecx, eax, ebx, edx, |
| 1662 | callback, name, &miss, &failure); |
| 1663 | if (!success) return failure; |
| 1664 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1665 | __ bind(&miss); |
| 1666 | __ DecrementCounter(&Counters::keyed_load_callback, 1); |
| 1667 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 1668 | |
| 1669 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1670 | return GetCode(CALLBACKS, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1671 | } |
| 1672 | |
| 1673 | |
| 1674 | Object* KeyedLoadStubCompiler::CompileLoadConstant(String* name, |
| 1675 | JSObject* receiver, |
| 1676 | JSObject* holder, |
| 1677 | Object* value) { |
| 1678 | // ----------- S t a t e ------------- |
| 1679 | // -- esp[0] : return address |
| 1680 | // -- esp[4] : name |
| 1681 | // -- esp[8] : receiver |
| 1682 | // ----------------------------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1683 | Label miss; |
| 1684 | |
kasperl@chromium.org | e959c18 | 2009-07-27 08:59:04 +0000 | [diff] [blame] | 1685 | __ mov(eax, Operand(esp, kPointerSize)); |
| 1686 | __ mov(ecx, Operand(esp, 2 * kPointerSize)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1687 | __ IncrementCounter(&Counters::keyed_load_constant_function, 1); |
| 1688 | |
| 1689 | // Check that the name has not changed. |
| 1690 | __ cmp(Operand(eax), Immediate(Handle<String>(name))); |
| 1691 | __ j(not_equal, &miss, not_taken); |
| 1692 | |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1693 | GenerateLoadConstant(receiver, holder, ecx, ebx, edx, |
| 1694 | value, name, &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1695 | __ bind(&miss); |
| 1696 | __ DecrementCounter(&Counters::keyed_load_constant_function, 1); |
| 1697 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 1698 | |
| 1699 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1700 | return GetCode(CONSTANT_FUNCTION, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1701 | } |
| 1702 | |
| 1703 | |
| 1704 | Object* KeyedLoadStubCompiler::CompileLoadInterceptor(JSObject* receiver, |
| 1705 | JSObject* holder, |
| 1706 | String* name) { |
| 1707 | // ----------- S t a t e ------------- |
| 1708 | // -- esp[0] : return address |
| 1709 | // -- esp[4] : name |
| 1710 | // -- esp[8] : receiver |
| 1711 | // ----------------------------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1712 | Label miss; |
| 1713 | |
kasperl@chromium.org | e959c18 | 2009-07-27 08:59:04 +0000 | [diff] [blame] | 1714 | __ mov(eax, Operand(esp, kPointerSize)); |
| 1715 | __ mov(ecx, Operand(esp, 2 * kPointerSize)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1716 | __ IncrementCounter(&Counters::keyed_load_interceptor, 1); |
| 1717 | |
| 1718 | // Check that the name has not changed. |
| 1719 | __ cmp(Operand(eax), Immediate(Handle<String>(name))); |
| 1720 | __ j(not_equal, &miss, not_taken); |
| 1721 | |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 1722 | LookupResult lookup; |
| 1723 | LookupPostInterceptor(holder, name, &lookup); |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1724 | GenerateLoadInterceptor(receiver, |
ager@chromium.org | e2902be | 2009-06-08 12:21:35 +0000 | [diff] [blame] | 1725 | holder, |
sgjesse@chromium.org | 0b6db59 | 2009-07-30 14:48:31 +0000 | [diff] [blame] | 1726 | &lookup, |
ager@chromium.org | e2902be | 2009-06-08 12:21:35 +0000 | [diff] [blame] | 1727 | ecx, |
| 1728 | eax, |
| 1729 | edx, |
| 1730 | ebx, |
kasperl@chromium.org | defbd10 | 2009-07-13 14:04:26 +0000 | [diff] [blame] | 1731 | name, |
ager@chromium.org | e2902be | 2009-06-08 12:21:35 +0000 | [diff] [blame] | 1732 | &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1733 | __ bind(&miss); |
| 1734 | __ DecrementCounter(&Counters::keyed_load_interceptor, 1); |
| 1735 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 1736 | |
| 1737 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1738 | return GetCode(INTERCEPTOR, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1739 | } |
| 1740 | |
| 1741 | |
| 1742 | |
| 1743 | |
| 1744 | Object* KeyedLoadStubCompiler::CompileLoadArrayLength(String* name) { |
| 1745 | // ----------- S t a t e ------------- |
| 1746 | // -- esp[0] : return address |
| 1747 | // -- esp[4] : name |
| 1748 | // -- esp[8] : receiver |
| 1749 | // ----------------------------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1750 | Label miss; |
| 1751 | |
kasperl@chromium.org | e959c18 | 2009-07-27 08:59:04 +0000 | [diff] [blame] | 1752 | __ mov(eax, Operand(esp, kPointerSize)); |
| 1753 | __ mov(ecx, Operand(esp, 2 * kPointerSize)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1754 | __ IncrementCounter(&Counters::keyed_load_array_length, 1); |
| 1755 | |
| 1756 | // Check that the name has not changed. |
| 1757 | __ cmp(Operand(eax), Immediate(Handle<String>(name))); |
| 1758 | __ j(not_equal, &miss, not_taken); |
| 1759 | |
| 1760 | GenerateLoadArrayLength(masm(), ecx, edx, &miss); |
| 1761 | __ bind(&miss); |
| 1762 | __ DecrementCounter(&Counters::keyed_load_array_length, 1); |
| 1763 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 1764 | |
| 1765 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1766 | return GetCode(CALLBACKS, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1767 | } |
| 1768 | |
| 1769 | |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 1770 | Object* KeyedLoadStubCompiler::CompileLoadStringLength(String* name) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1771 | // ----------- S t a t e ------------- |
| 1772 | // -- esp[0] : return address |
| 1773 | // -- esp[4] : name |
| 1774 | // -- esp[8] : receiver |
| 1775 | // ----------------------------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1776 | Label miss; |
| 1777 | |
kasperl@chromium.org | e959c18 | 2009-07-27 08:59:04 +0000 | [diff] [blame] | 1778 | __ mov(eax, Operand(esp, kPointerSize)); |
| 1779 | __ mov(ecx, Operand(esp, 2 * kPointerSize)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1780 | __ IncrementCounter(&Counters::keyed_load_string_length, 1); |
| 1781 | |
| 1782 | // Check that the name has not changed. |
| 1783 | __ cmp(Operand(eax), Immediate(Handle<String>(name))); |
| 1784 | __ j(not_equal, &miss, not_taken); |
| 1785 | |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 1786 | GenerateLoadStringLength(masm(), ecx, edx, &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1787 | __ bind(&miss); |
| 1788 | __ DecrementCounter(&Counters::keyed_load_string_length, 1); |
| 1789 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 1790 | |
| 1791 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1792 | return GetCode(CALLBACKS, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1793 | } |
| 1794 | |
| 1795 | |
| 1796 | Object* KeyedLoadStubCompiler::CompileLoadFunctionPrototype(String* name) { |
| 1797 | // ----------- S t a t e ------------- |
| 1798 | // -- esp[0] : return address |
| 1799 | // -- esp[4] : name |
| 1800 | // -- esp[8] : receiver |
| 1801 | // ----------------------------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1802 | Label miss; |
| 1803 | |
kasperl@chromium.org | e959c18 | 2009-07-27 08:59:04 +0000 | [diff] [blame] | 1804 | __ mov(eax, Operand(esp, kPointerSize)); |
| 1805 | __ mov(ecx, Operand(esp, 2 * kPointerSize)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1806 | __ IncrementCounter(&Counters::keyed_load_function_prototype, 1); |
| 1807 | |
| 1808 | // Check that the name has not changed. |
| 1809 | __ cmp(Operand(eax), Immediate(Handle<String>(name))); |
| 1810 | __ j(not_equal, &miss, not_taken); |
| 1811 | |
| 1812 | GenerateLoadFunctionPrototype(masm(), ecx, edx, ebx, &miss); |
| 1813 | __ bind(&miss); |
| 1814 | __ DecrementCounter(&Counters::keyed_load_function_prototype, 1); |
| 1815 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 1816 | |
| 1817 | // Return the generated code. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1818 | return GetCode(CALLBACKS, name); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1819 | } |
| 1820 | |
| 1821 | |
ager@chromium.org | 18ad94b | 2009-09-02 08:22:29 +0000 | [diff] [blame] | 1822 | // Specialized stub for constructing objects from functions which only have only |
| 1823 | // simple assignments of the form this.x = ...; in their body. |
| 1824 | Object* ConstructStubCompiler::CompileConstructStub( |
| 1825 | SharedFunctionInfo* shared) { |
| 1826 | // ----------- S t a t e ------------- |
| 1827 | // -- eax : argc |
| 1828 | // -- edi : constructor |
| 1829 | // -- esp[0] : return address |
| 1830 | // -- esp[4] : last argument |
| 1831 | // ----------------------------------- |
| 1832 | Label generic_stub_call; |
| 1833 | #ifdef ENABLE_DEBUGGER_SUPPORT |
| 1834 | // Check to see whether there are any break points in the function code. If |
| 1835 | // there are jump to the generic constructor stub which calls the actual |
| 1836 | // code for the function thereby hitting the break points. |
| 1837 | __ mov(ebx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset)); |
| 1838 | __ mov(ebx, FieldOperand(ebx, SharedFunctionInfo::kDebugInfoOffset)); |
| 1839 | __ cmp(ebx, Factory::undefined_value()); |
| 1840 | __ j(not_equal, &generic_stub_call, not_taken); |
| 1841 | #endif |
| 1842 | |
| 1843 | // Load the initial map and verify that it is in fact a map. |
| 1844 | __ mov(ebx, FieldOperand(edi, JSFunction::kPrototypeOrInitialMapOffset)); |
| 1845 | // Will both indicate a NULL and a Smi. |
| 1846 | __ test(ebx, Immediate(kSmiTagMask)); |
| 1847 | __ j(zero, &generic_stub_call); |
| 1848 | __ CmpObjectType(ebx, MAP_TYPE, ecx); |
| 1849 | __ j(not_equal, &generic_stub_call); |
| 1850 | |
| 1851 | #ifdef DEBUG |
| 1852 | // Cannot construct functions this way. |
| 1853 | // edi: constructor |
| 1854 | // ebx: initial map |
| 1855 | __ CmpInstanceType(ebx, JS_FUNCTION_TYPE); |
| 1856 | __ Assert(not_equal, "Function constructed by construct stub."); |
| 1857 | #endif |
| 1858 | |
| 1859 | // Now allocate the JSObject on the heap by moving the new space allocation |
| 1860 | // top forward. |
| 1861 | // edi: constructor |
| 1862 | // ebx: initial map |
| 1863 | __ movzx_b(ecx, FieldOperand(ebx, Map::kInstanceSizeOffset)); |
| 1864 | __ shl(ecx, kPointerSizeLog2); |
sgjesse@chromium.org | c514574 | 2009-10-07 09:00:33 +0000 | [diff] [blame] | 1865 | __ AllocateInNewSpace(ecx, |
| 1866 | edx, |
| 1867 | ecx, |
| 1868 | no_reg, |
| 1869 | &generic_stub_call, |
| 1870 | NO_ALLOCATION_FLAGS); |
ager@chromium.org | 18ad94b | 2009-09-02 08:22:29 +0000 | [diff] [blame] | 1871 | |
| 1872 | // Allocated the JSObject, now initialize the fields and add the heap tag. |
| 1873 | // ebx: initial map |
| 1874 | // edx: JSObject (untagged) |
| 1875 | __ mov(Operand(edx, JSObject::kMapOffset), ebx); |
| 1876 | __ mov(ebx, Factory::empty_fixed_array()); |
| 1877 | __ mov(Operand(edx, JSObject::kPropertiesOffset), ebx); |
| 1878 | __ mov(Operand(edx, JSObject::kElementsOffset), ebx); |
| 1879 | |
| 1880 | // Push the allocated object to the stack. This is the object that will be |
| 1881 | // returned (after it is tagged). |
| 1882 | __ push(edx); |
| 1883 | |
| 1884 | // eax: argc |
| 1885 | // edx: JSObject (untagged) |
| 1886 | // Load the address of the first in-object property into edx. |
| 1887 | __ lea(edx, Operand(edx, JSObject::kHeaderSize)); |
| 1888 | // Calculate the location of the first argument. The stack contains the |
| 1889 | // allocated object and the return address on top of the argc arguments. |
| 1890 | __ lea(ecx, Operand(esp, eax, times_4, 1 * kPointerSize)); |
| 1891 | |
| 1892 | // Use edi for holding undefined which is used in several places below. |
| 1893 | __ mov(edi, Factory::undefined_value()); |
| 1894 | |
| 1895 | // eax: argc |
| 1896 | // ecx: first argument |
| 1897 | // edx: first in-object property of the JSObject |
| 1898 | // edi: undefined |
| 1899 | // Fill the initialized properties with a constant value or a passed argument |
| 1900 | // depending on the this.x = ...; assignment in the function. |
| 1901 | for (int i = 0; i < shared->this_property_assignments_count(); i++) { |
| 1902 | if (shared->IsThisPropertyAssignmentArgument(i)) { |
ager@chromium.org | 18ad94b | 2009-09-02 08:22:29 +0000 | [diff] [blame] | 1903 | // Check if the argument assigned to the property is actually passed. |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame^] | 1904 | // If argument is not passed the property is set to undefined, |
| 1905 | // otherwise find it on the stack. |
ager@chromium.org | 18ad94b | 2009-09-02 08:22:29 +0000 | [diff] [blame] | 1906 | int arg_number = shared->GetThisPropertyAssignmentArgument(i); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame^] | 1907 | __ mov(ebx, edi); |
ager@chromium.org | 18ad94b | 2009-09-02 08:22:29 +0000 | [diff] [blame] | 1908 | __ cmp(eax, arg_number); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame^] | 1909 | if (CpuFeatures::IsSupported(CMOV)) { |
| 1910 | CpuFeatures::Scope use_cmov(CMOV); |
| 1911 | __ cmov(above, ebx, Operand(ecx, arg_number * -kPointerSize)); |
| 1912 | } else { |
| 1913 | Label not_passed; |
| 1914 | __ j(below_equal, ¬_passed); |
| 1915 | __ mov(ebx, Operand(ecx, arg_number * -kPointerSize)); |
| 1916 | __ bind(¬_passed); |
| 1917 | } |
| 1918 | // Store value in the property. |
ager@chromium.org | 18ad94b | 2009-09-02 08:22:29 +0000 | [diff] [blame] | 1919 | __ mov(Operand(edx, i * kPointerSize), ebx); |
ager@chromium.org | 18ad94b | 2009-09-02 08:22:29 +0000 | [diff] [blame] | 1920 | } else { |
| 1921 | // Set the property to the constant value. |
| 1922 | Handle<Object> constant(shared->GetThisPropertyAssignmentConstant(i)); |
| 1923 | __ mov(Operand(edx, i * kPointerSize), Immediate(constant)); |
| 1924 | } |
| 1925 | } |
| 1926 | |
| 1927 | // Fill the unused in-object property fields with undefined. |
| 1928 | for (int i = shared->this_property_assignments_count(); |
| 1929 | i < shared->CalculateInObjectProperties(); |
| 1930 | i++) { |
| 1931 | __ mov(Operand(edx, i * kPointerSize), edi); |
| 1932 | } |
| 1933 | |
| 1934 | // Move argc to ebx and retrieve and tag the JSObject to return. |
| 1935 | __ mov(ebx, eax); |
| 1936 | __ pop(eax); |
| 1937 | __ or_(Operand(eax), Immediate(kHeapObjectTag)); |
| 1938 | |
| 1939 | // Remove caller arguments and receiver from the stack and return. |
| 1940 | __ pop(ecx); |
| 1941 | __ lea(esp, Operand(esp, ebx, times_pointer_size, 1 * kPointerSize)); |
| 1942 | __ push(ecx); |
| 1943 | __ IncrementCounter(&Counters::constructed_objects, 1); |
| 1944 | __ IncrementCounter(&Counters::constructed_objects_stub, 1); |
| 1945 | __ ret(0); |
| 1946 | |
| 1947 | // Jump to the generic stub in case the specialized code cannot handle the |
| 1948 | // construction. |
| 1949 | __ bind(&generic_stub_call); |
| 1950 | Code* code = Builtins::builtin(Builtins::JSConstructStubGeneric); |
| 1951 | Handle<Code> generic_construct_stub(code); |
| 1952 | __ jmp(generic_construct_stub, RelocInfo::CODE_TARGET); |
| 1953 | |
| 1954 | // Return the generated code. |
| 1955 | return GetCode(); |
| 1956 | } |
| 1957 | |
| 1958 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1959 | #undef __ |
| 1960 | |
| 1961 | } } // namespace v8::internal |