OLD | NEW |
1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/v8.h" | 5 #include "src/v8.h" |
6 | 6 |
7 #if V8_TARGET_ARCH_X64 | 7 #if V8_TARGET_ARCH_X64 |
8 | 8 |
9 #include "src/codegen.h" | 9 #include "src/codegen.h" |
10 #include "src/ic-inl.h" | 10 #include "src/ic/ic.h" |
11 #include "src/runtime.h" | 11 #include "src/ic/stub-cache.h" |
12 #include "src/stub-cache.h" | |
13 | 12 |
14 namespace v8 { | 13 namespace v8 { |
15 namespace internal { | 14 namespace internal { |
16 | 15 |
17 // ---------------------------------------------------------------------------- | 16 // ---------------------------------------------------------------------------- |
18 // Static IC stub generators. | 17 // Static IC stub generators. |
19 // | 18 // |
20 | 19 |
21 #define __ ACCESS_MASM(masm) | 20 #define __ ACCESS_MASM(masm) |
22 | 21 |
23 | 22 |
24 static void GenerateGlobalInstanceTypeCheck(MacroAssembler* masm, | 23 static void GenerateGlobalInstanceTypeCheck(MacroAssembler* masm, Register type, |
25 Register type, | |
26 Label* global_object) { | 24 Label* global_object) { |
27 // Register usage: | 25 // Register usage: |
28 // type: holds the receiver instance type on entry. | 26 // type: holds the receiver instance type on entry. |
29 __ cmpb(type, Immediate(JS_GLOBAL_OBJECT_TYPE)); | 27 __ cmpb(type, Immediate(JS_GLOBAL_OBJECT_TYPE)); |
30 __ j(equal, global_object); | 28 __ j(equal, global_object); |
31 __ cmpb(type, Immediate(JS_BUILTINS_OBJECT_TYPE)); | 29 __ cmpb(type, Immediate(JS_BUILTINS_OBJECT_TYPE)); |
32 __ j(equal, global_object); | 30 __ j(equal, global_object); |
33 __ cmpb(type, Immediate(JS_GLOBAL_PROXY_TYPE)); | 31 __ cmpb(type, Immediate(JS_GLOBAL_PROXY_TYPE)); |
34 __ j(equal, global_object); | 32 __ j(equal, global_object); |
35 } | 33 } |
36 | 34 |
37 | 35 |
38 // Helper function used to load a property from a dictionary backing storage. | 36 // Helper function used to load a property from a dictionary backing storage. |
39 // This function may return false negatives, so miss_label | 37 // This function may return false negatives, so miss_label |
40 // must always call a backup property load that is complete. | 38 // must always call a backup property load that is complete. |
41 // This function is safe to call if name is not an internalized string, | 39 // This function is safe to call if name is not an internalized string, |
42 // and will jump to the miss_label in that case. | 40 // and will jump to the miss_label in that case. |
43 // The generated code assumes that the receiver has slow properties, | 41 // The generated code assumes that the receiver has slow properties, |
44 // is not a global object and does not have interceptors. | 42 // is not a global object and does not have interceptors. |
45 static void GenerateDictionaryLoad(MacroAssembler* masm, | 43 static void GenerateDictionaryLoad(MacroAssembler* masm, Label* miss_label, |
46 Label* miss_label, | 44 Register elements, Register name, |
47 Register elements, | 45 Register r0, Register r1, Register result) { |
48 Register name, | |
49 Register r0, | |
50 Register r1, | |
51 Register result) { | |
52 // Register use: | 46 // Register use: |
53 // | 47 // |
54 // elements - holds the property dictionary on entry and is unchanged. | 48 // elements - holds the property dictionary on entry and is unchanged. |
55 // | 49 // |
56 // name - holds the name of the property on entry and is unchanged. | 50 // name - holds the name of the property on entry and is unchanged. |
57 // | 51 // |
58 // r0 - used to hold the capacity of the property dictionary. | 52 // r0 - used to hold the capacity of the property dictionary. |
59 // | 53 // |
60 // r1 - used to hold the index into the property dictionary. | 54 // r1 - used to hold the index into the property dictionary. |
61 // | 55 // |
62 // result - holds the result on exit if the load succeeded. | 56 // result - holds the result on exit if the load succeeded. |
63 | 57 |
64 Label done; | 58 Label done; |
65 | 59 |
66 // Probe the dictionary. | 60 // Probe the dictionary. |
67 NameDictionaryLookupStub::GeneratePositiveLookup(masm, | 61 NameDictionaryLookupStub::GeneratePositiveLookup(masm, miss_label, &done, |
68 miss_label, | 62 elements, name, r0, r1); |
69 &done, | |
70 elements, | |
71 name, | |
72 r0, | |
73 r1); | |
74 | 63 |
75 // If probing finds an entry in the dictionary, r1 contains the | 64 // If probing finds an entry in the dictionary, r1 contains the |
76 // index into the dictionary. Check that the value is a normal | 65 // index into the dictionary. Check that the value is a normal |
77 // property. | 66 // property. |
78 __ bind(&done); | 67 __ bind(&done); |
79 const int kElementsStartOffset = | 68 const int kElementsStartOffset = |
80 NameDictionary::kHeaderSize + | 69 NameDictionary::kHeaderSize + |
81 NameDictionary::kElementsStartIndex * kPointerSize; | 70 NameDictionary::kElementsStartIndex * kPointerSize; |
82 const int kDetailsOffset = kElementsStartOffset + 2 * kPointerSize; | 71 const int kDetailsOffset = kElementsStartOffset + 2 * kPointerSize; |
83 __ Test(Operand(elements, r1, times_pointer_size, | 72 __ Test(Operand(elements, r1, times_pointer_size, |
84 kDetailsOffset - kHeapObjectTag), | 73 kDetailsOffset - kHeapObjectTag), |
85 Smi::FromInt(PropertyDetails::TypeField::kMask)); | 74 Smi::FromInt(PropertyDetails::TypeField::kMask)); |
86 __ j(not_zero, miss_label); | 75 __ j(not_zero, miss_label); |
87 | 76 |
88 // Get the value at the masked, scaled index. | 77 // Get the value at the masked, scaled index. |
89 const int kValueOffset = kElementsStartOffset + kPointerSize; | 78 const int kValueOffset = kElementsStartOffset + kPointerSize; |
90 __ movp(result, | 79 __ movp(result, Operand(elements, r1, times_pointer_size, |
91 Operand(elements, r1, times_pointer_size, | 80 kValueOffset - kHeapObjectTag)); |
92 kValueOffset - kHeapObjectTag)); | |
93 } | 81 } |
94 | 82 |
95 | 83 |
96 // Helper function used to store a property to a dictionary backing | 84 // Helper function used to store a property to a dictionary backing |
97 // storage. This function may fail to store a property even though it | 85 // storage. This function may fail to store a property even though it |
98 // is in the dictionary, so code at miss_label must always call a | 86 // is in the dictionary, so code at miss_label must always call a |
99 // backup property store that is complete. This function is safe to | 87 // backup property store that is complete. This function is safe to |
100 // call if name is not an internalized string, and will jump to the miss_label | 88 // call if name is not an internalized string, and will jump to the miss_label |
101 // in that case. The generated code assumes that the receiver has slow | 89 // in that case. The generated code assumes that the receiver has slow |
102 // properties, is not a global object and does not have interceptors. | 90 // properties, is not a global object and does not have interceptors. |
103 static void GenerateDictionaryStore(MacroAssembler* masm, | 91 static void GenerateDictionaryStore(MacroAssembler* masm, Label* miss_label, |
104 Label* miss_label, | 92 Register elements, Register name, |
105 Register elements, | 93 Register value, Register scratch0, |
106 Register name, | |
107 Register value, | |
108 Register scratch0, | |
109 Register scratch1) { | 94 Register scratch1) { |
110 // Register use: | 95 // Register use: |
111 // | 96 // |
112 // elements - holds the property dictionary on entry and is clobbered. | 97 // elements - holds the property dictionary on entry and is clobbered. |
113 // | 98 // |
114 // name - holds the name of the property on entry and is unchanged. | 99 // name - holds the name of the property on entry and is unchanged. |
115 // | 100 // |
116 // value - holds the value to store and is unchanged. | 101 // value - holds the value to store and is unchanged. |
117 // | 102 // |
118 // scratch0 - used during the positive dictionary lookup and is clobbered. | 103 // scratch0 - used during the positive dictionary lookup and is clobbered. |
119 // | 104 // |
120 // scratch1 - used for index into the property dictionary and is clobbered. | 105 // scratch1 - used for index into the property dictionary and is clobbered. |
121 Label done; | 106 Label done; |
122 | 107 |
123 // Probe the dictionary. | 108 // Probe the dictionary. |
124 NameDictionaryLookupStub::GeneratePositiveLookup(masm, | 109 NameDictionaryLookupStub::GeneratePositiveLookup( |
125 miss_label, | 110 masm, miss_label, &done, elements, name, scratch0, scratch1); |
126 &done, | |
127 elements, | |
128 name, | |
129 scratch0, | |
130 scratch1); | |
131 | 111 |
132 // If probing finds an entry in the dictionary, scratch0 contains the | 112 // If probing finds an entry in the dictionary, scratch0 contains the |
133 // index into the dictionary. Check that the value is a normal | 113 // index into the dictionary. Check that the value is a normal |
134 // property that is not read only. | 114 // property that is not read only. |
135 __ bind(&done); | 115 __ bind(&done); |
136 const int kElementsStartOffset = | 116 const int kElementsStartOffset = |
137 NameDictionary::kHeaderSize + | 117 NameDictionary::kHeaderSize + |
138 NameDictionary::kElementsStartIndex * kPointerSize; | 118 NameDictionary::kElementsStartIndex * kPointerSize; |
139 const int kDetailsOffset = kElementsStartOffset + 2 * kPointerSize; | 119 const int kDetailsOffset = kElementsStartOffset + 2 * kPointerSize; |
140 const int kTypeAndReadOnlyMask = | 120 const int kTypeAndReadOnlyMask = |
141 (PropertyDetails::TypeField::kMask | | 121 (PropertyDetails::TypeField::kMask | |
142 PropertyDetails::AttributesField::encode(READ_ONLY)) << kSmiTagSize; | 122 PropertyDetails::AttributesField::encode(READ_ONLY)) |
143 __ Test(Operand(elements, | 123 << kSmiTagSize; |
144 scratch1, | 124 __ Test(Operand(elements, scratch1, times_pointer_size, |
145 times_pointer_size, | |
146 kDetailsOffset - kHeapObjectTag), | 125 kDetailsOffset - kHeapObjectTag), |
147 Smi::FromInt(kTypeAndReadOnlyMask)); | 126 Smi::FromInt(kTypeAndReadOnlyMask)); |
148 __ j(not_zero, miss_label); | 127 __ j(not_zero, miss_label); |
149 | 128 |
150 // Store the value at the masked, scaled index. | 129 // Store the value at the masked, scaled index. |
151 const int kValueOffset = kElementsStartOffset + kPointerSize; | 130 const int kValueOffset = kElementsStartOffset + kPointerSize; |
152 __ leap(scratch1, Operand(elements, | 131 __ leap(scratch1, Operand(elements, scratch1, times_pointer_size, |
153 scratch1, | 132 kValueOffset - kHeapObjectTag)); |
154 times_pointer_size, | |
155 kValueOffset - kHeapObjectTag)); | |
156 __ movp(Operand(scratch1, 0), value); | 133 __ movp(Operand(scratch1, 0), value); |
157 | 134 |
158 // Update write barrier. Make sure not to clobber the value. | 135 // Update write barrier. Make sure not to clobber the value. |
159 __ movp(scratch0, value); | 136 __ movp(scratch0, value); |
160 __ RecordWrite(elements, scratch1, scratch0, kDontSaveFPRegs); | 137 __ RecordWrite(elements, scratch1, scratch0, kDontSaveFPRegs); |
161 } | 138 } |
162 | 139 |
163 | 140 |
164 // Checks the receiver for special cases (value type, slow case bits). | 141 // Checks the receiver for special cases (value type, slow case bits). |
165 // Falls through for regular JS object. | 142 // Falls through for regular JS object. |
166 static void GenerateKeyedLoadReceiverCheck(MacroAssembler* masm, | 143 static void GenerateKeyedLoadReceiverCheck(MacroAssembler* masm, |
167 Register receiver, | 144 Register receiver, Register map, |
168 Register map, | 145 int interceptor_bit, Label* slow) { |
169 int interceptor_bit, | |
170 Label* slow) { | |
171 // Register use: | 146 // Register use: |
172 // receiver - holds the receiver and is unchanged. | 147 // receiver - holds the receiver and is unchanged. |
173 // Scratch registers: | 148 // Scratch registers: |
174 // map - used to hold the map of the receiver. | 149 // map - used to hold the map of the receiver. |
175 | 150 |
176 // Check that the object isn't a smi. | 151 // Check that the object isn't a smi. |
177 __ JumpIfSmi(receiver, slow); | 152 __ JumpIfSmi(receiver, slow); |
178 | 153 |
179 // Check that the object is some kind of JS object EXCEPT JS Value type. | 154 // Check that the object is some kind of JS object EXCEPT JS Value type. |
180 // In the case that the object is a value-wrapper object, | 155 // In the case that the object is a value-wrapper object, |
181 // we enter the runtime system to make sure that indexing | 156 // we enter the runtime system to make sure that indexing |
182 // into string objects work as intended. | 157 // into string objects work as intended. |
183 DCHECK(JS_OBJECT_TYPE > JS_VALUE_TYPE); | 158 DCHECK(JS_OBJECT_TYPE > JS_VALUE_TYPE); |
184 __ CmpObjectType(receiver, JS_OBJECT_TYPE, map); | 159 __ CmpObjectType(receiver, JS_OBJECT_TYPE, map); |
185 __ j(below, slow); | 160 __ j(below, slow); |
186 | 161 |
187 // Check bit field. | 162 // Check bit field. |
188 __ testb(FieldOperand(map, Map::kBitFieldOffset), | 163 __ testb( |
189 Immediate((1 << Map::kIsAccessCheckNeeded) | | 164 FieldOperand(map, Map::kBitFieldOffset), |
190 (1 << interceptor_bit))); | 165 Immediate((1 << Map::kIsAccessCheckNeeded) | (1 << interceptor_bit))); |
191 __ j(not_zero, slow); | 166 __ j(not_zero, slow); |
192 } | 167 } |
193 | 168 |
194 | 169 |
195 // Loads an indexed element from a fast case array. | 170 // Loads an indexed element from a fast case array. |
196 // If not_fast_array is NULL, doesn't perform the elements map check. | 171 // If not_fast_array is NULL, doesn't perform the elements map check. |
197 static void GenerateFastArrayLoad(MacroAssembler* masm, | 172 static void GenerateFastArrayLoad(MacroAssembler* masm, Register receiver, |
198 Register receiver, | 173 Register key, Register elements, |
199 Register key, | 174 Register scratch, Register result, |
200 Register elements, | 175 Label* not_fast_array, Label* out_of_range) { |
201 Register scratch, | |
202 Register result, | |
203 Label* not_fast_array, | |
204 Label* out_of_range) { | |
205 // Register use: | 176 // Register use: |
206 // | 177 // |
207 // receiver - holds the receiver on entry. | 178 // receiver - holds the receiver on entry. |
208 // Unchanged unless 'result' is the same register. | 179 // Unchanged unless 'result' is the same register. |
209 // | 180 // |
210 // key - holds the smi key on entry. | 181 // key - holds the smi key on entry. |
211 // Unchanged unless 'result' is the same register. | 182 // Unchanged unless 'result' is the same register. |
212 // | 183 // |
213 // elements - holds the elements of the receiver on exit. | 184 // elements - holds the elements of the receiver on exit. |
214 // | 185 // |
(...skipping 14 matching lines...) Expand all Loading... |
229 __ j(not_equal, not_fast_array); | 200 __ j(not_equal, not_fast_array); |
230 } else { | 201 } else { |
231 __ AssertFastElements(elements); | 202 __ AssertFastElements(elements); |
232 } | 203 } |
233 // Check that the key (index) is within bounds. | 204 // Check that the key (index) is within bounds. |
234 __ SmiCompare(key, FieldOperand(elements, FixedArray::kLengthOffset)); | 205 __ SmiCompare(key, FieldOperand(elements, FixedArray::kLengthOffset)); |
235 // Unsigned comparison rejects negative indices. | 206 // Unsigned comparison rejects negative indices. |
236 __ j(above_equal, out_of_range); | 207 __ j(above_equal, out_of_range); |
237 // Fast case: Do the load. | 208 // Fast case: Do the load. |
238 SmiIndex index = masm->SmiToIndex(scratch, key, kPointerSizeLog2); | 209 SmiIndex index = masm->SmiToIndex(scratch, key, kPointerSizeLog2); |
239 __ movp(scratch, FieldOperand(elements, | 210 __ movp(scratch, FieldOperand(elements, index.reg, index.scale, |
240 index.reg, | |
241 index.scale, | |
242 FixedArray::kHeaderSize)); | 211 FixedArray::kHeaderSize)); |
243 __ CompareRoot(scratch, Heap::kTheHoleValueRootIndex); | 212 __ CompareRoot(scratch, Heap::kTheHoleValueRootIndex); |
244 // In case the loaded value is the_hole we have to consult GetProperty | 213 // In case the loaded value is the_hole we have to consult GetProperty |
245 // to ensure the prototype chain is searched. | 214 // to ensure the prototype chain is searched. |
246 __ j(equal, out_of_range); | 215 __ j(equal, out_of_range); |
247 if (!result.is(scratch)) { | 216 if (!result.is(scratch)) { |
248 __ movp(result, scratch); | 217 __ movp(result, scratch); |
249 } | 218 } |
250 } | 219 } |
251 | 220 |
252 | 221 |
253 // Checks whether a key is an array index string or a unique name. | 222 // Checks whether a key is an array index string or a unique name. |
254 // Falls through if the key is a unique name. | 223 // Falls through if the key is a unique name. |
255 static void GenerateKeyNameCheck(MacroAssembler* masm, | 224 static void GenerateKeyNameCheck(MacroAssembler* masm, Register key, |
256 Register key, | 225 Register map, Register hash, |
257 Register map, | 226 Label* index_string, Label* not_unique) { |
258 Register hash, | |
259 Label* index_string, | |
260 Label* not_unique) { | |
261 // Register use: | 227 // Register use: |
262 // key - holds the key and is unchanged. Assumed to be non-smi. | 228 // key - holds the key and is unchanged. Assumed to be non-smi. |
263 // Scratch registers: | 229 // Scratch registers: |
264 // map - used to hold the map of the key. | 230 // map - used to hold the map of the key. |
265 // hash - used to hold the hash of the key. | 231 // hash - used to hold the hash of the key. |
266 Label unique; | 232 Label unique; |
267 __ CmpObjectType(key, LAST_UNIQUE_NAME_TYPE, map); | 233 __ CmpObjectType(key, LAST_UNIQUE_NAME_TYPE, map); |
268 __ j(above, not_unique); | 234 __ j(above, not_unique); |
269 STATIC_ASSERT(LAST_UNIQUE_NAME_TYPE == FIRST_NONSTRING_TYPE); | 235 STATIC_ASSERT(LAST_UNIQUE_NAME_TYPE == FIRST_NONSTRING_TYPE); |
270 __ j(equal, &unique); | 236 __ j(equal, &unique); |
271 | 237 |
272 // Is the string an array index, with cached numeric value? | 238 // Is the string an array index, with cached numeric value? |
273 __ movl(hash, FieldOperand(key, Name::kHashFieldOffset)); | 239 __ movl(hash, FieldOperand(key, Name::kHashFieldOffset)); |
274 __ testl(hash, Immediate(Name::kContainsCachedArrayIndexMask)); | 240 __ testl(hash, Immediate(Name::kContainsCachedArrayIndexMask)); |
275 __ j(zero, index_string); // The value in hash is used at jump target. | 241 __ j(zero, index_string); // The value in hash is used at jump target. |
276 | 242 |
277 // Is the string internalized? We already know it's a string so a single | 243 // Is the string internalized? We already know it's a string so a single |
278 // bit test is enough. | 244 // bit test is enough. |
279 STATIC_ASSERT(kNotInternalizedTag != 0); | 245 STATIC_ASSERT(kNotInternalizedTag != 0); |
280 __ testb(FieldOperand(map, Map::kInstanceTypeOffset), | 246 __ testb(FieldOperand(map, Map::kInstanceTypeOffset), |
281 Immediate(kIsNotInternalizedMask)); | 247 Immediate(kIsNotInternalizedMask)); |
282 __ j(not_zero, not_unique); | 248 __ j(not_zero, not_unique); |
283 | 249 |
284 __ bind(&unique); | 250 __ bind(&unique); |
285 } | 251 } |
286 | 252 |
287 | 253 |
288 | |
289 void KeyedLoadIC::GenerateGeneric(MacroAssembler* masm) { | 254 void KeyedLoadIC::GenerateGeneric(MacroAssembler* masm) { |
290 // The return address is on the stack. | 255 // The return address is on the stack. |
291 Label slow, check_name, index_smi, index_name, property_array_property; | 256 Label slow, check_name, index_smi, index_name, property_array_property; |
292 Label probe_dictionary, check_number_dictionary; | 257 Label probe_dictionary, check_number_dictionary; |
293 | 258 |
294 Register receiver = ReceiverRegister(); | 259 Register receiver = ReceiverRegister(); |
295 Register key = NameRegister(); | 260 Register key = NameRegister(); |
296 DCHECK(receiver.is(rdx)); | 261 DCHECK(receiver.is(rdx)); |
297 DCHECK(key.is(rcx)); | 262 DCHECK(key.is(rcx)); |
298 | 263 |
299 // Check that the key is a smi. | 264 // Check that the key is a smi. |
300 __ JumpIfNotSmi(key, &check_name); | 265 __ JumpIfNotSmi(key, &check_name); |
301 __ bind(&index_smi); | 266 __ bind(&index_smi); |
302 // Now the key is known to be a smi. This place is also jumped to from below | 267 // Now the key is known to be a smi. This place is also jumped to from below |
303 // where a numeric string is converted to a smi. | 268 // where a numeric string is converted to a smi. |
304 | 269 |
305 GenerateKeyedLoadReceiverCheck( | 270 GenerateKeyedLoadReceiverCheck(masm, receiver, rax, |
306 masm, receiver, rax, Map::kHasIndexedInterceptor, &slow); | 271 Map::kHasIndexedInterceptor, &slow); |
307 | 272 |
308 // Check the receiver's map to see if it has fast elements. | 273 // Check the receiver's map to see if it has fast elements. |
309 __ CheckFastElements(rax, &check_number_dictionary); | 274 __ CheckFastElements(rax, &check_number_dictionary); |
310 | 275 |
311 GenerateFastArrayLoad(masm, | 276 GenerateFastArrayLoad(masm, receiver, key, rax, rbx, rax, NULL, &slow); |
312 receiver, | |
313 key, | |
314 rax, | |
315 rbx, | |
316 rax, | |
317 NULL, | |
318 &slow); | |
319 Counters* counters = masm->isolate()->counters(); | 277 Counters* counters = masm->isolate()->counters(); |
320 __ IncrementCounter(counters->keyed_load_generic_smi(), 1); | 278 __ IncrementCounter(counters->keyed_load_generic_smi(), 1); |
321 __ ret(0); | 279 __ ret(0); |
322 | 280 |
323 __ bind(&check_number_dictionary); | 281 __ bind(&check_number_dictionary); |
324 __ SmiToInteger32(rbx, key); | 282 __ SmiToInteger32(rbx, key); |
325 __ movp(rax, FieldOperand(receiver, JSObject::kElementsOffset)); | 283 __ movp(rax, FieldOperand(receiver, JSObject::kElementsOffset)); |
326 | 284 |
327 // Check whether the elements is a number dictionary. | 285 // Check whether the elements is a number dictionary. |
328 // rbx: key as untagged int32 | 286 // rbx: key as untagged int32 |
329 // rax: elements | 287 // rax: elements |
330 __ CompareRoot(FieldOperand(rax, HeapObject::kMapOffset), | 288 __ CompareRoot(FieldOperand(rax, HeapObject::kMapOffset), |
331 Heap::kHashTableMapRootIndex); | 289 Heap::kHashTableMapRootIndex); |
332 __ j(not_equal, &slow); | 290 __ j(not_equal, &slow); |
333 __ LoadFromNumberDictionary(&slow, rax, key, rbx, r9, rdi, rax); | 291 __ LoadFromNumberDictionary(&slow, rax, key, rbx, r9, rdi, rax); |
334 __ ret(0); | 292 __ ret(0); |
335 | 293 |
336 __ bind(&slow); | 294 __ bind(&slow); |
337 // Slow case: Jump to runtime. | 295 // Slow case: Jump to runtime. |
338 __ IncrementCounter(counters->keyed_load_generic_slow(), 1); | 296 __ IncrementCounter(counters->keyed_load_generic_slow(), 1); |
339 GenerateRuntimeGetProperty(masm); | 297 GenerateRuntimeGetProperty(masm); |
340 | 298 |
341 __ bind(&check_name); | 299 __ bind(&check_name); |
342 GenerateKeyNameCheck(masm, key, rax, rbx, &index_name, &slow); | 300 GenerateKeyNameCheck(masm, key, rax, rbx, &index_name, &slow); |
343 | 301 |
344 GenerateKeyedLoadReceiverCheck( | 302 GenerateKeyedLoadReceiverCheck(masm, receiver, rax, Map::kHasNamedInterceptor, |
345 masm, receiver, rax, Map::kHasNamedInterceptor, &slow); | 303 &slow); |
346 | 304 |
347 // If the receiver is a fast-case object, check the keyed lookup | 305 // If the receiver is a fast-case object, check the keyed lookup |
348 // cache. Otherwise probe the dictionary leaving result in key. | 306 // cache. Otherwise probe the dictionary leaving result in key. |
349 __ movp(rbx, FieldOperand(receiver, JSObject::kPropertiesOffset)); | 307 __ movp(rbx, FieldOperand(receiver, JSObject::kPropertiesOffset)); |
350 __ CompareRoot(FieldOperand(rbx, HeapObject::kMapOffset), | 308 __ CompareRoot(FieldOperand(rbx, HeapObject::kMapOffset), |
351 Heap::kHashTableMapRootIndex); | 309 Heap::kHashTableMapRootIndex); |
352 __ j(equal, &probe_dictionary); | 310 __ j(equal, &probe_dictionary); |
353 | 311 |
354 // Load the map of the receiver, compute the keyed lookup cache hash | 312 // Load the map of the receiver, compute the keyed lookup cache hash |
355 // based on 32 bits of the map pointer and the string hash. | 313 // based on 32 bits of the map pointer and the string hash. |
356 __ movp(rbx, FieldOperand(receiver, HeapObject::kMapOffset)); | 314 __ movp(rbx, FieldOperand(receiver, HeapObject::kMapOffset)); |
357 __ movl(rax, rbx); | 315 __ movl(rax, rbx); |
358 __ shrl(rax, Immediate(KeyedLookupCache::kMapHashShift)); | 316 __ shrl(rax, Immediate(KeyedLookupCache::kMapHashShift)); |
359 __ movl(rdi, FieldOperand(key, String::kHashFieldOffset)); | 317 __ movl(rdi, FieldOperand(key, String::kHashFieldOffset)); |
360 __ shrl(rdi, Immediate(String::kHashShift)); | 318 __ shrl(rdi, Immediate(String::kHashShift)); |
361 __ xorp(rax, rdi); | 319 __ xorp(rax, rdi); |
362 int mask = (KeyedLookupCache::kCapacityMask & KeyedLookupCache::kHashMask); | 320 int mask = (KeyedLookupCache::kCapacityMask & KeyedLookupCache::kHashMask); |
363 __ andp(rax, Immediate(mask)); | 321 __ andp(rax, Immediate(mask)); |
364 | 322 |
365 // Load the key (consisting of map and internalized string) from the cache and | 323 // Load the key (consisting of map and internalized string) from the cache and |
366 // check for match. | 324 // check for match. |
367 Label load_in_object_property; | 325 Label load_in_object_property; |
368 static const int kEntriesPerBucket = KeyedLookupCache::kEntriesPerBucket; | 326 static const int kEntriesPerBucket = KeyedLookupCache::kEntriesPerBucket; |
369 Label hit_on_nth_entry[kEntriesPerBucket]; | 327 Label hit_on_nth_entry[kEntriesPerBucket]; |
370 ExternalReference cache_keys | 328 ExternalReference cache_keys = |
371 = ExternalReference::keyed_lookup_cache_keys(masm->isolate()); | 329 ExternalReference::keyed_lookup_cache_keys(masm->isolate()); |
372 | 330 |
373 for (int i = 0; i < kEntriesPerBucket - 1; i++) { | 331 for (int i = 0; i < kEntriesPerBucket - 1; i++) { |
374 Label try_next_entry; | 332 Label try_next_entry; |
375 __ movp(rdi, rax); | 333 __ movp(rdi, rax); |
376 __ shlp(rdi, Immediate(kPointerSizeLog2 + 1)); | 334 __ shlp(rdi, Immediate(kPointerSizeLog2 + 1)); |
377 __ LoadAddress(kScratchRegister, cache_keys); | 335 __ LoadAddress(kScratchRegister, cache_keys); |
378 int off = kPointerSize * i * 2; | 336 int off = kPointerSize * i * 2; |
379 __ cmpp(rbx, Operand(kScratchRegister, rdi, times_1, off)); | 337 __ cmpp(rbx, Operand(kScratchRegister, rdi, times_1, off)); |
380 __ j(not_equal, &try_next_entry); | 338 __ j(not_equal, &try_next_entry); |
381 __ cmpp(key, Operand(kScratchRegister, rdi, times_1, off + kPointerSize)); | 339 __ cmpp(key, Operand(kScratchRegister, rdi, times_1, off + kPointerSize)); |
382 __ j(equal, &hit_on_nth_entry[i]); | 340 __ j(equal, &hit_on_nth_entry[i]); |
383 __ bind(&try_next_entry); | 341 __ bind(&try_next_entry); |
384 } | 342 } |
385 | 343 |
386 int off = kPointerSize * (kEntriesPerBucket - 1) * 2; | 344 int off = kPointerSize * (kEntriesPerBucket - 1) * 2; |
387 __ cmpp(rbx, Operand(kScratchRegister, rdi, times_1, off)); | 345 __ cmpp(rbx, Operand(kScratchRegister, rdi, times_1, off)); |
388 __ j(not_equal, &slow); | 346 __ j(not_equal, &slow); |
389 __ cmpp(key, Operand(kScratchRegister, rdi, times_1, off + kPointerSize)); | 347 __ cmpp(key, Operand(kScratchRegister, rdi, times_1, off + kPointerSize)); |
390 __ j(not_equal, &slow); | 348 __ j(not_equal, &slow); |
391 | 349 |
392 // Get field offset, which is a 32-bit integer. | 350 // Get field offset, which is a 32-bit integer. |
393 ExternalReference cache_field_offsets | 351 ExternalReference cache_field_offsets = |
394 = ExternalReference::keyed_lookup_cache_field_offsets(masm->isolate()); | 352 ExternalReference::keyed_lookup_cache_field_offsets(masm->isolate()); |
395 | 353 |
396 // Hit on nth entry. | 354 // Hit on nth entry. |
397 for (int i = kEntriesPerBucket - 1; i >= 0; i--) { | 355 for (int i = kEntriesPerBucket - 1; i >= 0; i--) { |
398 __ bind(&hit_on_nth_entry[i]); | 356 __ bind(&hit_on_nth_entry[i]); |
399 if (i != 0) { | 357 if (i != 0) { |
400 __ addl(rax, Immediate(i)); | 358 __ addl(rax, Immediate(i)); |
401 } | 359 } |
402 __ LoadAddress(kScratchRegister, cache_field_offsets); | 360 __ LoadAddress(kScratchRegister, cache_field_offsets); |
403 __ movl(rdi, Operand(kScratchRegister, rax, times_4, 0)); | 361 __ movl(rdi, Operand(kScratchRegister, rax, times_4, 0)); |
404 __ movzxbp(rax, FieldOperand(rbx, Map::kInObjectPropertiesOffset)); | 362 __ movzxbp(rax, FieldOperand(rbx, Map::kInObjectPropertiesOffset)); |
405 __ subp(rdi, rax); | 363 __ subp(rdi, rax); |
406 __ j(above_equal, &property_array_property); | 364 __ j(above_equal, &property_array_property); |
407 if (i != 0) { | 365 if (i != 0) { |
408 __ jmp(&load_in_object_property); | 366 __ jmp(&load_in_object_property); |
409 } | 367 } |
410 } | 368 } |
411 | 369 |
412 // Load in-object property. | 370 // Load in-object property. |
413 __ bind(&load_in_object_property); | 371 __ bind(&load_in_object_property); |
414 __ movzxbp(rax, FieldOperand(rbx, Map::kInstanceSizeOffset)); | 372 __ movzxbp(rax, FieldOperand(rbx, Map::kInstanceSizeOffset)); |
415 __ addp(rax, rdi); | 373 __ addp(rax, rdi); |
416 __ movp(rax, FieldOperand(receiver, rax, times_pointer_size, 0)); | 374 __ movp(rax, FieldOperand(receiver, rax, times_pointer_size, 0)); |
417 __ IncrementCounter(counters->keyed_load_generic_lookup_cache(), 1); | 375 __ IncrementCounter(counters->keyed_load_generic_lookup_cache(), 1); |
418 __ ret(0); | 376 __ ret(0); |
419 | 377 |
420 // Load property array property. | 378 // Load property array property. |
421 __ bind(&property_array_property); | 379 __ bind(&property_array_property); |
422 __ movp(rax, FieldOperand(receiver, JSObject::kPropertiesOffset)); | 380 __ movp(rax, FieldOperand(receiver, JSObject::kPropertiesOffset)); |
423 __ movp(rax, FieldOperand(rax, rdi, times_pointer_size, | 381 __ movp(rax, |
424 FixedArray::kHeaderSize)); | 382 FieldOperand(rax, rdi, times_pointer_size, FixedArray::kHeaderSize)); |
425 __ IncrementCounter(counters->keyed_load_generic_lookup_cache(), 1); | 383 __ IncrementCounter(counters->keyed_load_generic_lookup_cache(), 1); |
426 __ ret(0); | 384 __ ret(0); |
427 | 385 |
428 // Do a quick inline probe of the receiver's dictionary, if it | 386 // Do a quick inline probe of the receiver's dictionary, if it |
429 // exists. | 387 // exists. |
430 __ bind(&probe_dictionary); | 388 __ bind(&probe_dictionary); |
431 // rbx: elements | 389 // rbx: elements |
432 | 390 |
433 __ movp(rax, FieldOperand(receiver, JSObject::kMapOffset)); | 391 __ movp(rax, FieldOperand(receiver, JSObject::kMapOffset)); |
434 __ movb(rax, FieldOperand(rax, Map::kInstanceTypeOffset)); | 392 __ movb(rax, FieldOperand(rax, Map::kInstanceTypeOffset)); |
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447 void KeyedLoadIC::GenerateString(MacroAssembler* masm) { | 405 void KeyedLoadIC::GenerateString(MacroAssembler* masm) { |
448 // Return address is on the stack. | 406 // Return address is on the stack. |
449 Label miss; | 407 Label miss; |
450 | 408 |
451 Register receiver = ReceiverRegister(); | 409 Register receiver = ReceiverRegister(); |
452 Register index = NameRegister(); | 410 Register index = NameRegister(); |
453 Register scratch = rbx; | 411 Register scratch = rbx; |
454 Register result = rax; | 412 Register result = rax; |
455 DCHECK(!scratch.is(receiver) && !scratch.is(index)); | 413 DCHECK(!scratch.is(receiver) && !scratch.is(index)); |
456 | 414 |
457 StringCharAtGenerator char_at_generator(receiver, | 415 StringCharAtGenerator char_at_generator(receiver, index, scratch, result, |
458 index, | |
459 scratch, | |
460 result, | |
461 &miss, // When not a string. | 416 &miss, // When not a string. |
462 &miss, // When not a number. | 417 &miss, // When not a number. |
463 &miss, // When index out of range. | 418 &miss, // When index out of range. |
464 STRING_INDEX_IS_ARRAY_INDEX); | 419 STRING_INDEX_IS_ARRAY_INDEX); |
465 char_at_generator.GenerateFast(masm); | 420 char_at_generator.GenerateFast(masm); |
466 __ ret(0); | 421 __ ret(0); |
467 | 422 |
468 StubRuntimeCallHelper call_helper; | 423 StubRuntimeCallHelper call_helper; |
469 char_at_generator.GenerateSlow(masm, call_helper); | 424 char_at_generator.GenerateSlow(masm, call_helper); |
470 | 425 |
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510 ExternalReference(IC_Utility(kLoadElementWithInterceptor), | 465 ExternalReference(IC_Utility(kLoadElementWithInterceptor), |
511 masm->isolate()), | 466 masm->isolate()), |
512 2, 1); | 467 2, 1); |
513 | 468 |
514 __ bind(&slow); | 469 __ bind(&slow); |
515 GenerateMiss(masm); | 470 GenerateMiss(masm); |
516 } | 471 } |
517 | 472 |
518 | 473 |
519 static void KeyedStoreGenerateGenericHelper( | 474 static void KeyedStoreGenerateGenericHelper( |
520 MacroAssembler* masm, | 475 MacroAssembler* masm, Label* fast_object, Label* fast_double, Label* slow, |
521 Label* fast_object, | 476 KeyedStoreCheckMap check_map, KeyedStoreIncrementLength increment_length) { |
522 Label* fast_double, | |
523 Label* slow, | |
524 KeyedStoreCheckMap check_map, | |
525 KeyedStoreIncrementLength increment_length) { | |
526 Label transition_smi_elements; | 477 Label transition_smi_elements; |
527 Label finish_object_store, non_double_value, transition_double_elements; | 478 Label finish_object_store, non_double_value, transition_double_elements; |
528 Label fast_double_without_map_check; | 479 Label fast_double_without_map_check; |
529 Register receiver = KeyedStoreIC::ReceiverRegister(); | 480 Register receiver = KeyedStoreIC::ReceiverRegister(); |
530 Register key = KeyedStoreIC::NameRegister(); | 481 Register key = KeyedStoreIC::NameRegister(); |
531 Register value = KeyedStoreIC::ValueRegister(); | 482 Register value = KeyedStoreIC::ValueRegister(); |
532 DCHECK(receiver.is(rdx)); | 483 DCHECK(receiver.is(rdx)); |
533 DCHECK(key.is(rcx)); | 484 DCHECK(key.is(rcx)); |
534 DCHECK(value.is(rax)); | 485 DCHECK(value.is(rax)); |
535 // Fast case: Do the store, could be either Object or double. | 486 // Fast case: Do the store, could be either Object or double. |
536 __ bind(fast_object); | 487 __ bind(fast_object); |
537 // rbx: receiver's elements array (a FixedArray) | 488 // rbx: receiver's elements array (a FixedArray) |
538 // receiver is a JSArray. | 489 // receiver is a JSArray. |
539 // r9: map of receiver | 490 // r9: map of receiver |
540 if (check_map == kCheckMap) { | 491 if (check_map == kCheckMap) { |
541 __ movp(rdi, FieldOperand(rbx, HeapObject::kMapOffset)); | 492 __ movp(rdi, FieldOperand(rbx, HeapObject::kMapOffset)); |
542 __ CompareRoot(rdi, Heap::kFixedArrayMapRootIndex); | 493 __ CompareRoot(rdi, Heap::kFixedArrayMapRootIndex); |
543 __ j(not_equal, fast_double); | 494 __ j(not_equal, fast_double); |
544 } | 495 } |
545 | 496 |
546 // HOLECHECK: guards "A[i] = V" | 497 // HOLECHECK: guards "A[i] = V" |
547 // We have to go to the runtime if the current value is the hole because | 498 // We have to go to the runtime if the current value is the hole because |
548 // there may be a callback on the element | 499 // there may be a callback on the element |
549 Label holecheck_passed1; | 500 Label holecheck_passed1; |
550 __ movp(kScratchRegister, FieldOperand(rbx, | 501 __ movp(kScratchRegister, |
551 key, | 502 FieldOperand(rbx, key, times_pointer_size, FixedArray::kHeaderSize)); |
552 times_pointer_size, | |
553 FixedArray::kHeaderSize)); | |
554 __ CompareRoot(kScratchRegister, Heap::kTheHoleValueRootIndex); | 503 __ CompareRoot(kScratchRegister, Heap::kTheHoleValueRootIndex); |
555 __ j(not_equal, &holecheck_passed1); | 504 __ j(not_equal, &holecheck_passed1); |
556 __ JumpIfDictionaryInPrototypeChain(receiver, rdi, kScratchRegister, slow); | 505 __ JumpIfDictionaryInPrototypeChain(receiver, rdi, kScratchRegister, slow); |
557 | 506 |
558 __ bind(&holecheck_passed1); | 507 __ bind(&holecheck_passed1); |
559 | 508 |
560 // Smi stores don't require further checks. | 509 // Smi stores don't require further checks. |
561 Label non_smi_value; | 510 Label non_smi_value; |
562 __ JumpIfNotSmi(value, &non_smi_value); | 511 __ JumpIfNotSmi(value, &non_smi_value); |
563 if (increment_length == kIncrementLength) { | 512 if (increment_length == kIncrementLength) { |
(...skipping 13 matching lines...) Expand all Loading... |
577 | 526 |
578 __ bind(&finish_object_store); | 527 __ bind(&finish_object_store); |
579 if (increment_length == kIncrementLength) { | 528 if (increment_length == kIncrementLength) { |
580 // Add 1 to receiver->length. | 529 // Add 1 to receiver->length. |
581 __ leal(rdi, Operand(key, 1)); | 530 __ leal(rdi, Operand(key, 1)); |
582 __ Integer32ToSmiField(FieldOperand(receiver, JSArray::kLengthOffset), rdi); | 531 __ Integer32ToSmiField(FieldOperand(receiver, JSArray::kLengthOffset), rdi); |
583 } | 532 } |
584 __ movp(FieldOperand(rbx, key, times_pointer_size, FixedArray::kHeaderSize), | 533 __ movp(FieldOperand(rbx, key, times_pointer_size, FixedArray::kHeaderSize), |
585 value); | 534 value); |
586 __ movp(rdx, value); // Preserve the value which is returned. | 535 __ movp(rdx, value); // Preserve the value which is returned. |
587 __ RecordWriteArray( | 536 __ RecordWriteArray(rbx, rdx, key, kDontSaveFPRegs, EMIT_REMEMBERED_SET, |
588 rbx, rdx, key, kDontSaveFPRegs, EMIT_REMEMBERED_SET, OMIT_SMI_CHECK); | 537 OMIT_SMI_CHECK); |
589 __ ret(0); | 538 __ ret(0); |
590 | 539 |
591 __ bind(fast_double); | 540 __ bind(fast_double); |
592 if (check_map == kCheckMap) { | 541 if (check_map == kCheckMap) { |
593 // Check for fast double array case. If this fails, call through to the | 542 // Check for fast double array case. If this fails, call through to the |
594 // runtime. | 543 // runtime. |
595 // rdi: elements array's map | 544 // rdi: elements array's map |
596 __ CompareRoot(rdi, Heap::kFixedDoubleArrayMapRootIndex); | 545 __ CompareRoot(rdi, Heap::kFixedDoubleArrayMapRootIndex); |
597 __ j(not_equal, slow); | 546 __ j(not_equal, slow); |
598 } | 547 } |
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619 __ movp(rbx, FieldOperand(receiver, HeapObject::kMapOffset)); | 568 __ movp(rbx, FieldOperand(receiver, HeapObject::kMapOffset)); |
620 | 569 |
621 // Transition the array appropriately depending on the value type. | 570 // Transition the array appropriately depending on the value type. |
622 __ movp(r9, FieldOperand(value, HeapObject::kMapOffset)); | 571 __ movp(r9, FieldOperand(value, HeapObject::kMapOffset)); |
623 __ CompareRoot(r9, Heap::kHeapNumberMapRootIndex); | 572 __ CompareRoot(r9, Heap::kHeapNumberMapRootIndex); |
624 __ j(not_equal, &non_double_value); | 573 __ j(not_equal, &non_double_value); |
625 | 574 |
626 // Value is a double. Transition FAST_SMI_ELEMENTS -> | 575 // Value is a double. Transition FAST_SMI_ELEMENTS -> |
627 // FAST_DOUBLE_ELEMENTS and complete the store. | 576 // FAST_DOUBLE_ELEMENTS and complete the store. |
628 __ LoadTransitionedArrayMapConditional(FAST_SMI_ELEMENTS, | 577 __ LoadTransitionedArrayMapConditional(FAST_SMI_ELEMENTS, |
629 FAST_DOUBLE_ELEMENTS, | 578 FAST_DOUBLE_ELEMENTS, rbx, rdi, slow); |
630 rbx, | 579 AllocationSiteMode mode = |
631 rdi, | 580 AllocationSite::GetMode(FAST_SMI_ELEMENTS, FAST_DOUBLE_ELEMENTS); |
632 slow); | 581 ElementsTransitionGenerator::GenerateSmiToDouble(masm, receiver, key, value, |
633 AllocationSiteMode mode = AllocationSite::GetMode(FAST_SMI_ELEMENTS, | 582 rbx, mode, slow); |
634 FAST_DOUBLE_ELEMENTS); | |
635 ElementsTransitionGenerator::GenerateSmiToDouble( | |
636 masm, receiver, key, value, rbx, mode, slow); | |
637 __ movp(rbx, FieldOperand(receiver, JSObject::kElementsOffset)); | 583 __ movp(rbx, FieldOperand(receiver, JSObject::kElementsOffset)); |
638 __ jmp(&fast_double_without_map_check); | 584 __ jmp(&fast_double_without_map_check); |
639 | 585 |
640 __ bind(&non_double_value); | 586 __ bind(&non_double_value); |
641 // Value is not a double, FAST_SMI_ELEMENTS -> FAST_ELEMENTS | 587 // Value is not a double, FAST_SMI_ELEMENTS -> FAST_ELEMENTS |
642 __ LoadTransitionedArrayMapConditional(FAST_SMI_ELEMENTS, | 588 __ LoadTransitionedArrayMapConditional(FAST_SMI_ELEMENTS, FAST_ELEMENTS, rbx, |
643 FAST_ELEMENTS, | 589 rdi, slow); |
644 rbx, | |
645 rdi, | |
646 slow); | |
647 mode = AllocationSite::GetMode(FAST_SMI_ELEMENTS, FAST_ELEMENTS); | 590 mode = AllocationSite::GetMode(FAST_SMI_ELEMENTS, FAST_ELEMENTS); |
648 ElementsTransitionGenerator::GenerateMapChangeElementsTransition( | 591 ElementsTransitionGenerator::GenerateMapChangeElementsTransition( |
649 masm, receiver, key, value, rbx, mode, slow); | 592 masm, receiver, key, value, rbx, mode, slow); |
650 __ movp(rbx, FieldOperand(receiver, JSObject::kElementsOffset)); | 593 __ movp(rbx, FieldOperand(receiver, JSObject::kElementsOffset)); |
651 __ jmp(&finish_object_store); | 594 __ jmp(&finish_object_store); |
652 | 595 |
653 __ bind(&transition_double_elements); | 596 __ bind(&transition_double_elements); |
654 // Elements are FAST_DOUBLE_ELEMENTS, but value is an Object that's not a | 597 // Elements are FAST_DOUBLE_ELEMENTS, but value is an Object that's not a |
655 // HeapNumber. Make sure that the receiver is a Array with FAST_ELEMENTS and | 598 // HeapNumber. Make sure that the receiver is a Array with FAST_ELEMENTS and |
656 // transition array from FAST_DOUBLE_ELEMENTS to FAST_ELEMENTS | 599 // transition array from FAST_DOUBLE_ELEMENTS to FAST_ELEMENTS |
657 __ movp(rbx, FieldOperand(receiver, HeapObject::kMapOffset)); | 600 __ movp(rbx, FieldOperand(receiver, HeapObject::kMapOffset)); |
658 __ LoadTransitionedArrayMapConditional(FAST_DOUBLE_ELEMENTS, | 601 __ LoadTransitionedArrayMapConditional(FAST_DOUBLE_ELEMENTS, FAST_ELEMENTS, |
659 FAST_ELEMENTS, | 602 rbx, rdi, slow); |
660 rbx, | |
661 rdi, | |
662 slow); | |
663 mode = AllocationSite::GetMode(FAST_DOUBLE_ELEMENTS, FAST_ELEMENTS); | 603 mode = AllocationSite::GetMode(FAST_DOUBLE_ELEMENTS, FAST_ELEMENTS); |
664 ElementsTransitionGenerator::GenerateDoubleToObject( | 604 ElementsTransitionGenerator::GenerateDoubleToObject(masm, receiver, key, |
665 masm, receiver, key, value, rbx, mode, slow); | 605 value, rbx, mode, slow); |
666 __ movp(rbx, FieldOperand(receiver, JSObject::kElementsOffset)); | 606 __ movp(rbx, FieldOperand(receiver, JSObject::kElementsOffset)); |
667 __ jmp(&finish_object_store); | 607 __ jmp(&finish_object_store); |
668 } | 608 } |
669 | 609 |
670 | 610 |
671 void KeyedStoreIC::GenerateGeneric(MacroAssembler* masm, | 611 void KeyedStoreIC::GenerateGeneric(MacroAssembler* masm, |
672 StrictMode strict_mode) { | 612 StrictMode strict_mode) { |
673 // Return address is on the stack. | 613 // Return address is on the stack. |
674 Label slow, slow_with_tagged_index, fast_object, fast_object_grow; | 614 Label slow, slow_with_tagged_index, fast_object, fast_object_grow; |
675 Label fast_double, fast_double_grow; | 615 Label fast_double, fast_double_grow; |
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739 // is the length is always a smi. | 679 // is the length is always a smi. |
740 __ bind(&array); | 680 __ bind(&array); |
741 // receiver is a JSArray. | 681 // receiver is a JSArray. |
742 __ movp(rbx, FieldOperand(receiver, JSObject::kElementsOffset)); | 682 __ movp(rbx, FieldOperand(receiver, JSObject::kElementsOffset)); |
743 | 683 |
744 // Check the key against the length in the array, compute the | 684 // Check the key against the length in the array, compute the |
745 // address to store into and fall through to fast case. | 685 // address to store into and fall through to fast case. |
746 __ SmiCompareInteger32(FieldOperand(receiver, JSArray::kLengthOffset), key); | 686 __ SmiCompareInteger32(FieldOperand(receiver, JSArray::kLengthOffset), key); |
747 __ j(below_equal, &extra); | 687 __ j(below_equal, &extra); |
748 | 688 |
749 KeyedStoreGenerateGenericHelper(masm, &fast_object, &fast_double, | 689 KeyedStoreGenerateGenericHelper(masm, &fast_object, &fast_double, &slow, |
750 &slow, kCheckMap, kDontIncrementLength); | 690 kCheckMap, kDontIncrementLength); |
751 KeyedStoreGenerateGenericHelper(masm, &fast_object_grow, &fast_double_grow, | 691 KeyedStoreGenerateGenericHelper(masm, &fast_object_grow, &fast_double_grow, |
752 &slow, kDontCheckMap, kIncrementLength); | 692 &slow, kDontCheckMap, kIncrementLength); |
753 } | 693 } |
754 | 694 |
755 | 695 |
756 static Operand GenerateMappedArgumentsLookup(MacroAssembler* masm, | 696 static Operand GenerateMappedArgumentsLookup( |
757 Register object, | 697 MacroAssembler* masm, Register object, Register key, Register scratch1, |
758 Register key, | 698 Register scratch2, Register scratch3, Label* unmapped_case, |
759 Register scratch1, | 699 Label* slow_case) { |
760 Register scratch2, | |
761 Register scratch3, | |
762 Label* unmapped_case, | |
763 Label* slow_case) { | |
764 Heap* heap = masm->isolate()->heap(); | 700 Heap* heap = masm->isolate()->heap(); |
765 | 701 |
766 // Check that the receiver is a JSObject. Because of the elements | 702 // Check that the receiver is a JSObject. Because of the elements |
767 // map check later, we do not need to check for interceptors or | 703 // map check later, we do not need to check for interceptors or |
768 // whether it requires access checks. | 704 // whether it requires access checks. |
769 __ JumpIfSmi(object, slow_case); | 705 __ JumpIfSmi(object, slow_case); |
770 // Check that the object is some kind of JSObject. | 706 // Check that the object is some kind of JSObject. |
771 __ CmpObjectType(object, FIRST_JS_RECEIVER_TYPE, scratch1); | 707 __ CmpObjectType(object, FIRST_JS_RECEIVER_TYPE, scratch1); |
772 __ j(below, slow_case); | 708 __ j(below, slow_case); |
773 | 709 |
774 // Check that the key is a positive smi. | 710 // Check that the key is a positive smi. |
775 Condition check = masm->CheckNonNegativeSmi(key); | 711 Condition check = masm->CheckNonNegativeSmi(key); |
776 __ j(NegateCondition(check), slow_case); | 712 __ j(NegateCondition(check), slow_case); |
777 | 713 |
778 // Load the elements into scratch1 and check its map. If not, jump | 714 // Load the elements into scratch1 and check its map. If not, jump |
779 // to the unmapped lookup with the parameter map in scratch1. | 715 // to the unmapped lookup with the parameter map in scratch1. |
780 Handle<Map> arguments_map(heap->sloppy_arguments_elements_map()); | 716 Handle<Map> arguments_map(heap->sloppy_arguments_elements_map()); |
781 __ movp(scratch1, FieldOperand(object, JSObject::kElementsOffset)); | 717 __ movp(scratch1, FieldOperand(object, JSObject::kElementsOffset)); |
782 __ CheckMap(scratch1, arguments_map, slow_case, DONT_DO_SMI_CHECK); | 718 __ CheckMap(scratch1, arguments_map, slow_case, DONT_DO_SMI_CHECK); |
783 | 719 |
784 // Check if element is in the range of mapped arguments. | 720 // Check if element is in the range of mapped arguments. |
785 __ movp(scratch2, FieldOperand(scratch1, FixedArray::kLengthOffset)); | 721 __ movp(scratch2, FieldOperand(scratch1, FixedArray::kLengthOffset)); |
786 __ SmiSubConstant(scratch2, scratch2, Smi::FromInt(2)); | 722 __ SmiSubConstant(scratch2, scratch2, Smi::FromInt(2)); |
787 __ cmpp(key, scratch2); | 723 __ cmpp(key, scratch2); |
788 __ j(greater_equal, unmapped_case); | 724 __ j(greater_equal, unmapped_case); |
789 | 725 |
790 // Load element index and check whether it is the hole. | 726 // Load element index and check whether it is the hole. |
791 const int kHeaderSize = FixedArray::kHeaderSize + 2 * kPointerSize; | 727 const int kHeaderSize = FixedArray::kHeaderSize + 2 * kPointerSize; |
792 __ SmiToInteger64(scratch3, key); | 728 __ SmiToInteger64(scratch3, key); |
793 __ movp(scratch2, FieldOperand(scratch1, | 729 __ movp(scratch2, |
794 scratch3, | 730 FieldOperand(scratch1, scratch3, times_pointer_size, kHeaderSize)); |
795 times_pointer_size, | |
796 kHeaderSize)); | |
797 __ CompareRoot(scratch2, Heap::kTheHoleValueRootIndex); | 731 __ CompareRoot(scratch2, Heap::kTheHoleValueRootIndex); |
798 __ j(equal, unmapped_case); | 732 __ j(equal, unmapped_case); |
799 | 733 |
800 // Load value from context and return it. We can reuse scratch1 because | 734 // Load value from context and return it. We can reuse scratch1 because |
801 // we do not jump to the unmapped lookup (which requires the parameter | 735 // we do not jump to the unmapped lookup (which requires the parameter |
802 // map in scratch1). | 736 // map in scratch1). |
803 __ movp(scratch1, FieldOperand(scratch1, FixedArray::kHeaderSize)); | 737 __ movp(scratch1, FieldOperand(scratch1, FixedArray::kHeaderSize)); |
804 __ SmiToInteger64(scratch3, scratch2); | 738 __ SmiToInteger64(scratch3, scratch2); |
805 return FieldOperand(scratch1, | 739 return FieldOperand(scratch1, scratch3, times_pointer_size, |
806 scratch3, | |
807 times_pointer_size, | |
808 Context::kHeaderSize); | 740 Context::kHeaderSize); |
809 } | 741 } |
810 | 742 |
811 | 743 |
812 static Operand GenerateUnmappedArgumentsLookup(MacroAssembler* masm, | 744 static Operand GenerateUnmappedArgumentsLookup(MacroAssembler* masm, |
813 Register key, | 745 Register key, |
814 Register parameter_map, | 746 Register parameter_map, |
815 Register scratch, | 747 Register scratch, |
816 Label* slow_case) { | 748 Label* slow_case) { |
817 // Element is in arguments backing store, which is referenced by the | 749 // Element is in arguments backing store, which is referenced by the |
818 // second element of the parameter_map. The parameter_map register | 750 // second element of the parameter_map. The parameter_map register |
819 // must be loaded with the parameter map of the arguments object and is | 751 // must be loaded with the parameter map of the arguments object and is |
820 // overwritten. | 752 // overwritten. |
821 const int kBackingStoreOffset = FixedArray::kHeaderSize + kPointerSize; | 753 const int kBackingStoreOffset = FixedArray::kHeaderSize + kPointerSize; |
822 Register backing_store = parameter_map; | 754 Register backing_store = parameter_map; |
823 __ movp(backing_store, FieldOperand(parameter_map, kBackingStoreOffset)); | 755 __ movp(backing_store, FieldOperand(parameter_map, kBackingStoreOffset)); |
824 Handle<Map> fixed_array_map(masm->isolate()->heap()->fixed_array_map()); | 756 Handle<Map> fixed_array_map(masm->isolate()->heap()->fixed_array_map()); |
825 __ CheckMap(backing_store, fixed_array_map, slow_case, DONT_DO_SMI_CHECK); | 757 __ CheckMap(backing_store, fixed_array_map, slow_case, DONT_DO_SMI_CHECK); |
826 __ movp(scratch, FieldOperand(backing_store, FixedArray::kLengthOffset)); | 758 __ movp(scratch, FieldOperand(backing_store, FixedArray::kLengthOffset)); |
827 __ cmpp(key, scratch); | 759 __ cmpp(key, scratch); |
828 __ j(greater_equal, slow_case); | 760 __ j(greater_equal, slow_case); |
829 __ SmiToInteger64(scratch, key); | 761 __ SmiToInteger64(scratch, key); |
830 return FieldOperand(backing_store, | 762 return FieldOperand(backing_store, scratch, times_pointer_size, |
831 scratch, | |
832 times_pointer_size, | |
833 FixedArray::kHeaderSize); | 763 FixedArray::kHeaderSize); |
834 } | 764 } |
835 | 765 |
836 | 766 |
837 void KeyedLoadIC::GenerateSloppyArguments(MacroAssembler* masm) { | 767 void KeyedLoadIC::GenerateSloppyArguments(MacroAssembler* masm) { |
838 // The return address is on the stack. | 768 // The return address is on the stack. |
839 Register receiver = ReceiverRegister(); | 769 Register receiver = ReceiverRegister(); |
840 Register key = NameRegister(); | 770 Register key = NameRegister(); |
841 DCHECK(receiver.is(rdx)); | 771 DCHECK(receiver.is(rdx)); |
842 DCHECK(key.is(rcx)); | 772 DCHECK(key.is(rcx)); |
843 | 773 |
844 Label slow, notin; | 774 Label slow, notin; |
845 Operand mapped_location = | 775 Operand mapped_location = GenerateMappedArgumentsLookup( |
846 GenerateMappedArgumentsLookup( | 776 masm, receiver, key, rbx, rax, rdi, ¬in, &slow); |
847 masm, receiver, key, rbx, rax, rdi, ¬in, &slow); | |
848 __ movp(rax, mapped_location); | 777 __ movp(rax, mapped_location); |
849 __ Ret(); | 778 __ Ret(); |
850 __ bind(¬in); | 779 __ bind(¬in); |
851 // The unmapped lookup expects that the parameter map is in rbx. | 780 // The unmapped lookup expects that the parameter map is in rbx. |
852 Operand unmapped_location = | 781 Operand unmapped_location = |
853 GenerateUnmappedArgumentsLookup(masm, key, rbx, rax, &slow); | 782 GenerateUnmappedArgumentsLookup(masm, key, rbx, rax, &slow); |
854 __ CompareRoot(unmapped_location, Heap::kTheHoleValueRootIndex); | 783 __ CompareRoot(unmapped_location, Heap::kTheHoleValueRootIndex); |
855 __ j(equal, &slow); | 784 __ j(equal, &slow); |
856 __ movp(rax, unmapped_location); | 785 __ movp(rax, unmapped_location); |
857 __ Ret(); | 786 __ Ret(); |
(...skipping 10 matching lines...) Expand all Loading... |
868 Register value = ValueRegister(); | 797 Register value = ValueRegister(); |
869 DCHECK(receiver.is(rdx)); | 798 DCHECK(receiver.is(rdx)); |
870 DCHECK(name.is(rcx)); | 799 DCHECK(name.is(rcx)); |
871 DCHECK(value.is(rax)); | 800 DCHECK(value.is(rax)); |
872 | 801 |
873 Operand mapped_location = GenerateMappedArgumentsLookup( | 802 Operand mapped_location = GenerateMappedArgumentsLookup( |
874 masm, receiver, name, rbx, rdi, r8, ¬in, &slow); | 803 masm, receiver, name, rbx, rdi, r8, ¬in, &slow); |
875 __ movp(mapped_location, value); | 804 __ movp(mapped_location, value); |
876 __ leap(r9, mapped_location); | 805 __ leap(r9, mapped_location); |
877 __ movp(r8, value); | 806 __ movp(r8, value); |
878 __ RecordWrite(rbx, | 807 __ RecordWrite(rbx, r9, r8, kDontSaveFPRegs, EMIT_REMEMBERED_SET, |
879 r9, | |
880 r8, | |
881 kDontSaveFPRegs, | |
882 EMIT_REMEMBERED_SET, | |
883 INLINE_SMI_CHECK); | 808 INLINE_SMI_CHECK); |
884 __ Ret(); | 809 __ Ret(); |
885 __ bind(¬in); | 810 __ bind(¬in); |
886 // The unmapped lookup expects that the parameter map is in rbx. | 811 // The unmapped lookup expects that the parameter map is in rbx. |
887 Operand unmapped_location = | 812 Operand unmapped_location = |
888 GenerateUnmappedArgumentsLookup(masm, name, rbx, rdi, &slow); | 813 GenerateUnmappedArgumentsLookup(masm, name, rbx, rdi, &slow); |
889 __ movp(unmapped_location, value); | 814 __ movp(unmapped_location, value); |
890 __ leap(r9, unmapped_location); | 815 __ leap(r9, unmapped_location); |
891 __ movp(r8, value); | 816 __ movp(r8, value); |
892 __ RecordWrite(rbx, | 817 __ RecordWrite(rbx, r9, r8, kDontSaveFPRegs, EMIT_REMEMBERED_SET, |
893 r9, | |
894 r8, | |
895 kDontSaveFPRegs, | |
896 EMIT_REMEMBERED_SET, | |
897 INLINE_SMI_CHECK); | 818 INLINE_SMI_CHECK); |
898 __ Ret(); | 819 __ Ret(); |
899 __ bind(&slow); | 820 __ bind(&slow); |
900 GenerateMiss(masm); | 821 GenerateMiss(masm); |
901 } | 822 } |
902 | 823 |
903 | 824 |
904 void LoadIC::GenerateMegamorphic(MacroAssembler* masm) { | 825 void LoadIC::GenerateMegamorphic(MacroAssembler* masm) { |
905 // The return address is on the stack. | 826 // The return address is on the stack. |
906 Register receiver = ReceiverRegister(); | 827 Register receiver = ReceiverRegister(); |
907 Register name = NameRegister(); | 828 Register name = NameRegister(); |
908 DCHECK(receiver.is(rdx)); | 829 DCHECK(receiver.is(rdx)); |
909 DCHECK(name.is(rcx)); | 830 DCHECK(name.is(rcx)); |
910 | 831 |
911 // Probe the stub cache. | 832 // Probe the stub cache. |
912 Code::Flags flags = Code::RemoveTypeAndHolderFromFlags( | 833 Code::Flags flags = Code::RemoveTypeAndHolderFromFlags( |
913 Code::ComputeHandlerFlags(Code::LOAD_IC)); | 834 Code::ComputeHandlerFlags(Code::LOAD_IC)); |
914 masm->isolate()->stub_cache()->GenerateProbe( | 835 masm->isolate()->stub_cache()->GenerateProbe(masm, flags, receiver, name, rbx, |
915 masm, flags, receiver, name, rbx, rax); | 836 rax); |
916 | 837 |
917 GenerateMiss(masm); | 838 GenerateMiss(masm); |
918 } | 839 } |
919 | 840 |
920 | 841 |
921 void LoadIC::GenerateNormal(MacroAssembler* masm) { | 842 void LoadIC::GenerateNormal(MacroAssembler* masm) { |
922 Register dictionary = rax; | 843 Register dictionary = rax; |
923 DCHECK(!dictionary.is(ReceiverRegister())); | 844 DCHECK(!dictionary.is(ReceiverRegister())); |
924 DCHECK(!dictionary.is(NameRegister())); | 845 DCHECK(!dictionary.is(NameRegister())); |
925 | 846 |
926 Label slow; | 847 Label slow; |
927 | 848 |
928 __ movp(dictionary, | 849 __ movp(dictionary, |
929 FieldOperand(ReceiverRegister(), JSObject::kPropertiesOffset)); | 850 FieldOperand(ReceiverRegister(), JSObject::kPropertiesOffset)); |
930 GenerateDictionaryLoad(masm, &slow, dictionary, NameRegister(), rbx, rdi, | 851 GenerateDictionaryLoad(masm, &slow, dictionary, NameRegister(), rbx, rdi, |
931 rax); | 852 rax); |
932 __ ret(0); | 853 __ ret(0); |
933 | 854 |
934 // Dictionary load failed, go slow (but don't miss). | 855 // Dictionary load failed, go slow (but don't miss). |
935 __ bind(&slow); | 856 __ bind(&slow); |
936 GenerateRuntimeGetProperty(masm); | 857 GenerateRuntimeGetProperty(masm); |
937 } | 858 } |
938 | 859 |
939 | 860 |
940 // A register that isn't one of the parameters to the load ic. | 861 // A register that isn't one of the parameters to the load ic. |
941 static const Register LoadIC_TempRegister() { return rbx; } | 862 static const Register LoadIC_TempRegister() { return rbx; } |
942 | 863 |
943 | 864 |
944 static const Register KeyedLoadIC_TempRegister() { | 865 static const Register KeyedLoadIC_TempRegister() { return rbx; } |
945 return rbx; | |
946 } | |
947 | 866 |
948 | 867 |
949 void LoadIC::GenerateMiss(MacroAssembler* masm) { | 868 void LoadIC::GenerateMiss(MacroAssembler* masm) { |
950 // The return address is on the stack. | 869 // The return address is on the stack. |
951 | 870 |
952 Counters* counters = masm->isolate()->counters(); | 871 Counters* counters = masm->isolate()->counters(); |
953 __ IncrementCounter(counters->load_miss(), 1); | 872 __ IncrementCounter(counters->load_miss(), 1); |
954 | 873 |
955 __ PopReturnAddressTo(LoadIC_TempRegister()); | 874 __ PopReturnAddressTo(LoadIC_TempRegister()); |
956 __ Push(ReceiverRegister()); // receiver | 875 __ Push(ReceiverRegister()); // receiver |
957 __ Push(NameRegister()); // name | 876 __ Push(NameRegister()); // name |
958 __ PushReturnAddressFrom(LoadIC_TempRegister()); | 877 __ PushReturnAddressFrom(LoadIC_TempRegister()); |
959 | 878 |
960 // Perform tail call to the entry. | 879 // Perform tail call to the entry. |
961 ExternalReference ref = | 880 ExternalReference ref = |
962 ExternalReference(IC_Utility(kLoadIC_Miss), masm->isolate()); | 881 ExternalReference(IC_Utility(kLoadIC_Miss), masm->isolate()); |
963 __ TailCallExternalReference(ref, 2, 1); | 882 __ TailCallExternalReference(ref, 2, 1); |
964 } | 883 } |
965 | 884 |
966 | 885 |
967 void LoadIC::GenerateRuntimeGetProperty(MacroAssembler* masm) { | 886 void LoadIC::GenerateRuntimeGetProperty(MacroAssembler* masm) { |
968 // The return address is on the stack. | 887 // The return address is on the stack. |
969 | 888 |
970 __ PopReturnAddressTo(LoadIC_TempRegister()); | 889 __ PopReturnAddressTo(LoadIC_TempRegister()); |
971 __ Push(ReceiverRegister()); // receiver | 890 __ Push(ReceiverRegister()); // receiver |
972 __ Push(NameRegister()); // name | 891 __ Push(NameRegister()); // name |
973 __ PushReturnAddressFrom(LoadIC_TempRegister()); | 892 __ PushReturnAddressFrom(LoadIC_TempRegister()); |
974 | 893 |
975 // Perform tail call to the entry. | 894 // Perform tail call to the entry. |
976 __ TailCallRuntime(Runtime::kGetProperty, 2, 1); | 895 __ TailCallRuntime(Runtime::kGetProperty, 2, 1); |
977 } | 896 } |
978 | 897 |
979 | 898 |
980 void KeyedLoadIC::GenerateMiss(MacroAssembler* masm) { | 899 void KeyedLoadIC::GenerateMiss(MacroAssembler* masm) { |
981 // The return address is on the stack. | 900 // The return address is on the stack. |
982 Counters* counters = masm->isolate()->counters(); | 901 Counters* counters = masm->isolate()->counters(); |
983 __ IncrementCounter(counters->keyed_load_miss(), 1); | 902 __ IncrementCounter(counters->keyed_load_miss(), 1); |
984 | 903 |
985 __ PopReturnAddressTo(KeyedLoadIC_TempRegister()); | 904 __ PopReturnAddressTo(KeyedLoadIC_TempRegister()); |
986 __ Push(ReceiverRegister()); // receiver | 905 __ Push(ReceiverRegister()); // receiver |
987 __ Push(NameRegister()); // name | 906 __ Push(NameRegister()); // name |
988 __ PushReturnAddressFrom(KeyedLoadIC_TempRegister()); | 907 __ PushReturnAddressFrom(KeyedLoadIC_TempRegister()); |
989 | 908 |
990 // Perform tail call to the entry. | 909 // Perform tail call to the entry. |
991 ExternalReference ref = | 910 ExternalReference ref = |
992 ExternalReference(IC_Utility(kKeyedLoadIC_Miss), masm->isolate()); | 911 ExternalReference(IC_Utility(kKeyedLoadIC_Miss), masm->isolate()); |
993 __ TailCallExternalReference(ref, 2, 1); | 912 __ TailCallExternalReference(ref, 2, 1); |
994 } | 913 } |
995 | 914 |
996 | 915 |
997 // IC register specifications | 916 // IC register specifications |
(...skipping 11 matching lines...) Expand all Loading... |
1009 DCHECK(FLAG_vector_ics); | 928 DCHECK(FLAG_vector_ics); |
1010 return rbx; | 929 return rbx; |
1011 } | 930 } |
1012 | 931 |
1013 | 932 |
1014 const Register StoreIC::ReceiverRegister() { return rdx; } | 933 const Register StoreIC::ReceiverRegister() { return rdx; } |
1015 const Register StoreIC::NameRegister() { return rcx; } | 934 const Register StoreIC::NameRegister() { return rcx; } |
1016 const Register StoreIC::ValueRegister() { return rax; } | 935 const Register StoreIC::ValueRegister() { return rax; } |
1017 | 936 |
1018 | 937 |
1019 const Register KeyedStoreIC::MapRegister() { | 938 const Register KeyedStoreIC::MapRegister() { return rbx; } |
1020 return rbx; | |
1021 } | |
1022 | 939 |
1023 | 940 |
1024 void KeyedLoadIC::GenerateRuntimeGetProperty(MacroAssembler* masm) { | 941 void KeyedLoadIC::GenerateRuntimeGetProperty(MacroAssembler* masm) { |
1025 // The return address is on the stack. | 942 // The return address is on the stack. |
1026 | 943 |
1027 __ PopReturnAddressTo(KeyedLoadIC_TempRegister()); | 944 __ PopReturnAddressTo(KeyedLoadIC_TempRegister()); |
1028 __ Push(ReceiverRegister()); // receiver | 945 __ Push(ReceiverRegister()); // receiver |
1029 __ Push(NameRegister()); // name | 946 __ Push(NameRegister()); // name |
1030 __ PushReturnAddressFrom(KeyedLoadIC_TempRegister()); | 947 __ PushReturnAddressFrom(KeyedLoadIC_TempRegister()); |
1031 | 948 |
1032 // Perform tail call to the entry. | 949 // Perform tail call to the entry. |
1033 __ TailCallRuntime(Runtime::kKeyedGetProperty, 2, 1); | 950 __ TailCallRuntime(Runtime::kKeyedGetProperty, 2, 1); |
1034 } | 951 } |
1035 | 952 |
1036 | 953 |
1037 void StoreIC::GenerateMegamorphic(MacroAssembler* masm) { | 954 void StoreIC::GenerateMegamorphic(MacroAssembler* masm) { |
1038 // The return address is on the stack. | 955 // The return address is on the stack. |
1039 | 956 |
1040 // Get the receiver from the stack and probe the stub cache. | 957 // Get the receiver from the stack and probe the stub cache. |
1041 Code::Flags flags = Code::RemoveTypeAndHolderFromFlags( | 958 Code::Flags flags = Code::RemoveTypeAndHolderFromFlags( |
1042 Code::ComputeHandlerFlags(Code::STORE_IC)); | 959 Code::ComputeHandlerFlags(Code::STORE_IC)); |
1043 masm->isolate()->stub_cache()->GenerateProbe( | 960 masm->isolate()->stub_cache()->GenerateProbe(masm, flags, ReceiverRegister(), |
1044 masm, flags, ReceiverRegister(), NameRegister(), rbx, no_reg); | 961 NameRegister(), rbx, no_reg); |
1045 | 962 |
1046 // Cache miss: Jump to runtime. | 963 // Cache miss: Jump to runtime. |
1047 GenerateMiss(masm); | 964 GenerateMiss(masm); |
1048 } | 965 } |
1049 | 966 |
1050 | 967 |
1051 static void StoreIC_PushArgs(MacroAssembler* masm) { | 968 static void StoreIC_PushArgs(MacroAssembler* masm) { |
1052 Register receiver = StoreIC::ReceiverRegister(); | 969 Register receiver = StoreIC::ReceiverRegister(); |
1053 Register name = StoreIC::NameRegister(); | 970 Register name = StoreIC::NameRegister(); |
1054 Register value = StoreIC::ValueRegister(); | 971 Register value = StoreIC::ValueRegister(); |
(...skipping 60 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
1115 void KeyedStoreIC::GenerateRuntimeSetProperty(MacroAssembler* masm, | 1032 void KeyedStoreIC::GenerateRuntimeSetProperty(MacroAssembler* masm, |
1116 StrictMode strict_mode) { | 1033 StrictMode strict_mode) { |
1117 // Return address is on the stack. | 1034 // Return address is on the stack. |
1118 DCHECK(!rbx.is(ReceiverRegister()) && !rbx.is(NameRegister()) && | 1035 DCHECK(!rbx.is(ReceiverRegister()) && !rbx.is(NameRegister()) && |
1119 !rbx.is(ValueRegister())); | 1036 !rbx.is(ValueRegister())); |
1120 | 1037 |
1121 __ PopReturnAddressTo(rbx); | 1038 __ PopReturnAddressTo(rbx); |
1122 __ Push(ReceiverRegister()); | 1039 __ Push(ReceiverRegister()); |
1123 __ Push(NameRegister()); | 1040 __ Push(NameRegister()); |
1124 __ Push(ValueRegister()); | 1041 __ Push(ValueRegister()); |
1125 __ Push(Smi::FromInt(strict_mode)); // Strict mode. | 1042 __ Push(Smi::FromInt(strict_mode)); // Strict mode. |
1126 __ PushReturnAddressFrom(rbx); | 1043 __ PushReturnAddressFrom(rbx); |
1127 | 1044 |
1128 // Do tail-call to runtime routine. | 1045 // Do tail-call to runtime routine. |
1129 __ TailCallRuntime(Runtime::kSetProperty, 4, 1); | 1046 __ TailCallRuntime(Runtime::kSetProperty, 4, 1); |
1130 } | 1047 } |
1131 | 1048 |
1132 | 1049 |
1133 void StoreIC::GenerateSlow(MacroAssembler* masm) { | 1050 void StoreIC::GenerateSlow(MacroAssembler* masm) { |
1134 // Return address is on the stack. | 1051 // Return address is on the stack. |
1135 StoreIC_PushArgs(masm); | 1052 StoreIC_PushArgs(masm); |
(...skipping 69 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
1205 if (*test_instruction_address != Assembler::kTestAlByte) { | 1122 if (*test_instruction_address != Assembler::kTestAlByte) { |
1206 DCHECK(*test_instruction_address == Assembler::kNopByte); | 1123 DCHECK(*test_instruction_address == Assembler::kNopByte); |
1207 return; | 1124 return; |
1208 } | 1125 } |
1209 | 1126 |
1210 Address delta_address = test_instruction_address + 1; | 1127 Address delta_address = test_instruction_address + 1; |
1211 // The delta to the start of the map check instruction and the | 1128 // The delta to the start of the map check instruction and the |
1212 // condition code uses at the patched jump. | 1129 // condition code uses at the patched jump. |
1213 uint8_t delta = *reinterpret_cast<uint8_t*>(delta_address); | 1130 uint8_t delta = *reinterpret_cast<uint8_t*>(delta_address); |
1214 if (FLAG_trace_ic) { | 1131 if (FLAG_trace_ic) { |
1215 PrintF("[ patching ic at %p, test=%p, delta=%d\n", | 1132 PrintF("[ patching ic at %p, test=%p, delta=%d\n", address, |
1216 address, test_instruction_address, delta); | 1133 test_instruction_address, delta); |
1217 } | 1134 } |
1218 | 1135 |
1219 // Patch with a short conditional jump. Enabling means switching from a short | 1136 // Patch with a short conditional jump. Enabling means switching from a short |
1220 // jump-if-carry/not-carry to jump-if-zero/not-zero, whereas disabling is the | 1137 // jump-if-carry/not-carry to jump-if-zero/not-zero, whereas disabling is the |
1221 // reverse operation of that. | 1138 // reverse operation of that. |
1222 Address jmp_address = test_instruction_address - delta; | 1139 Address jmp_address = test_instruction_address - delta; |
1223 DCHECK((check == ENABLE_INLINED_SMI_CHECK) | 1140 DCHECK((check == ENABLE_INLINED_SMI_CHECK) |
1224 ? (*jmp_address == Assembler::kJncShortOpcode || | 1141 ? (*jmp_address == Assembler::kJncShortOpcode || |
1225 *jmp_address == Assembler::kJcShortOpcode) | 1142 *jmp_address == Assembler::kJcShortOpcode) |
1226 : (*jmp_address == Assembler::kJnzShortOpcode || | 1143 : (*jmp_address == Assembler::kJnzShortOpcode || |
1227 *jmp_address == Assembler::kJzShortOpcode)); | 1144 *jmp_address == Assembler::kJzShortOpcode)); |
1228 Condition cc = (check == ENABLE_INLINED_SMI_CHECK) | 1145 Condition cc = |
1229 ? (*jmp_address == Assembler::kJncShortOpcode ? not_zero : zero) | 1146 (check == ENABLE_INLINED_SMI_CHECK) |
1230 : (*jmp_address == Assembler::kJnzShortOpcode ? not_carry : carry); | 1147 ? (*jmp_address == Assembler::kJncShortOpcode ? not_zero : zero) |
| 1148 : (*jmp_address == Assembler::kJnzShortOpcode ? not_carry : carry); |
1231 *jmp_address = static_cast<byte>(Assembler::kJccShortPrefix | cc); | 1149 *jmp_address = static_cast<byte>(Assembler::kJccShortPrefix | cc); |
1232 } | 1150 } |
1233 | 1151 } |
1234 | 1152 } // namespace v8::internal |
1235 } } // namespace v8::internal | |
1236 | 1153 |
1237 #endif // V8_TARGET_ARCH_X64 | 1154 #endif // V8_TARGET_ARCH_X64 |
OLD | NEW |