jkummerow@chromium.org | 1145ef8 | 2012-02-02 16:21:15 +0000 | [diff] [blame] | 1 | // Copyright 2012 the V8 project authors. All rights reserved. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | |
| 28 | #include "v8.h" |
| 29 | |
jkummerow@chromium.org | 93a47f4 | 2013-07-02 14:43:41 +0000 | [diff] [blame] | 30 | #if V8_TARGET_ARCH_ARM |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 31 | |
fschneider@chromium.org | 013f3e1 | 2010-04-26 13:27:52 +0000 | [diff] [blame] | 32 | #include "assembler-arm.h" |
ricow@chromium.org | d236f4d | 2010-09-01 06:52:08 +0000 | [diff] [blame] | 33 | #include "code-stubs.h" |
karlklose@chromium.org | 44bc708 | 2011-04-11 12:33:05 +0000 | [diff] [blame] | 34 | #include "codegen.h" |
fschneider@chromium.org | 013f3e1 | 2010-04-26 13:27:52 +0000 | [diff] [blame] | 35 | #include "disasm.h" |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 36 | #include "ic-inl.h" |
| 37 | #include "runtime.h" |
| 38 | #include "stub-cache.h" |
| 39 | |
kasperl@chromium.org | 71affb5 | 2009-05-26 05:44:31 +0000 | [diff] [blame] | 40 | namespace v8 { |
| 41 | namespace internal { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 42 | |
| 43 | |
| 44 | // ---------------------------------------------------------------------------- |
| 45 | // Static IC stub generators. |
| 46 | // |
| 47 | |
ager@chromium.org | 65dad4b | 2009-04-23 08:48:43 +0000 | [diff] [blame] | 48 | #define __ ACCESS_MASM(masm) |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 49 | |
fschneider@chromium.org | 40b9da3 | 2010-06-28 11:29:21 +0000 | [diff] [blame] | 50 | |
| 51 | static void GenerateGlobalInstanceTypeCheck(MacroAssembler* masm, |
| 52 | Register type, |
| 53 | Label* global_object) { |
| 54 | // Register usage: |
| 55 | // type: holds the receiver instance type on entry. |
| 56 | __ cmp(type, Operand(JS_GLOBAL_OBJECT_TYPE)); |
| 57 | __ b(eq, global_object); |
| 58 | __ cmp(type, Operand(JS_BUILTINS_OBJECT_TYPE)); |
| 59 | __ b(eq, global_object); |
| 60 | __ cmp(type, Operand(JS_GLOBAL_PROXY_TYPE)); |
| 61 | __ b(eq, global_object); |
| 62 | } |
| 63 | |
| 64 | |
| 65 | // Generated code falls through if the receiver is a regular non-global |
| 66 | // JS object with slow properties and no interceptors. |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 67 | static void GenerateNameDictionaryReceiverCheck(MacroAssembler* masm, |
| 68 | Register receiver, |
| 69 | Register elements, |
| 70 | Register t0, |
| 71 | Register t1, |
| 72 | Label* miss) { |
fschneider@chromium.org | 40b9da3 | 2010-06-28 11:29:21 +0000 | [diff] [blame] | 73 | // Register usage: |
| 74 | // receiver: holds the receiver on entry and is unchanged. |
| 75 | // elements: holds the property dictionary on fall through. |
| 76 | // Scratch registers: |
| 77 | // t0: used to holds the receiver map. |
| 78 | // t1: used to holds the receiver instance type, receiver bit mask and |
| 79 | // elements map. |
| 80 | |
| 81 | // Check that the receiver isn't a smi. |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 82 | __ JumpIfSmi(receiver, miss); |
fschneider@chromium.org | 40b9da3 | 2010-06-28 11:29:21 +0000 | [diff] [blame] | 83 | |
| 84 | // Check that the receiver is a valid JS object. |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 85 | __ CompareObjectType(receiver, t0, t1, FIRST_SPEC_OBJECT_TYPE); |
fschneider@chromium.org | 40b9da3 | 2010-06-28 11:29:21 +0000 | [diff] [blame] | 86 | __ b(lt, miss); |
| 87 | |
| 88 | // If this assert fails, we have to check upper bound too. |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 89 | STATIC_ASSERT(LAST_TYPE == LAST_SPEC_OBJECT_TYPE); |
fschneider@chromium.org | 40b9da3 | 2010-06-28 11:29:21 +0000 | [diff] [blame] | 90 | |
| 91 | GenerateGlobalInstanceTypeCheck(masm, t1, miss); |
| 92 | |
| 93 | // Check that the global object does not require access checks. |
| 94 | __ ldrb(t1, FieldMemOperand(t0, Map::kBitFieldOffset)); |
| 95 | __ tst(t1, Operand((1 << Map::kIsAccessCheckNeeded) | |
| 96 | (1 << Map::kHasNamedInterceptor))); |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 97 | __ b(ne, miss); |
fschneider@chromium.org | 40b9da3 | 2010-06-28 11:29:21 +0000 | [diff] [blame] | 98 | |
| 99 | __ ldr(elements, FieldMemOperand(receiver, JSObject::kPropertiesOffset)); |
| 100 | __ ldr(t1, FieldMemOperand(elements, HeapObject::kMapOffset)); |
| 101 | __ LoadRoot(ip, Heap::kHashTableMapRootIndex); |
| 102 | __ cmp(t1, ip); |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 103 | __ b(ne, miss); |
fschneider@chromium.org | 40b9da3 | 2010-06-28 11:29:21 +0000 | [diff] [blame] | 104 | } |
| 105 | |
| 106 | |
kmillikin@chromium.org | 69ea396 | 2010-07-05 11:01:40 +0000 | [diff] [blame] | 107 | // Helper function used from LoadIC/CallIC GenerateNormal. |
| 108 | // |
| 109 | // elements: Property dictionary. It is not clobbered if a jump to the miss |
| 110 | // label is done. |
| 111 | // name: Property name. It is not clobbered if a jump to the miss label is |
| 112 | // done |
| 113 | // result: Register for the result. It is only updated if a jump to the miss |
| 114 | // label is not done. Can be the same as elements or name clobbering |
| 115 | // one of these in the case of not jumping to the miss label. |
| 116 | // The two scratch registers need to be different from elements, name and |
| 117 | // result. |
| 118 | // The generated code assumes that the receiver has slow properties, |
| 119 | // is not a global object and does not have interceptors. |
| 120 | static void GenerateDictionaryLoad(MacroAssembler* masm, |
| 121 | Label* miss, |
| 122 | Register elements, |
| 123 | Register name, |
| 124 | Register result, |
| 125 | Register scratch1, |
| 126 | Register scratch2) { |
| 127 | // Main use of the scratch registers. |
| 128 | // scratch1: Used as temporary and to hold the capacity of the property |
| 129 | // dictionary. |
| 130 | // scratch2: Used as temporary. |
| 131 | Label done; |
| 132 | |
| 133 | // Probe the dictionary. |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 134 | NameDictionaryLookupStub::GeneratePositiveLookup(masm, |
| 135 | miss, |
| 136 | &done, |
| 137 | elements, |
| 138 | name, |
| 139 | scratch1, |
| 140 | scratch2); |
kmillikin@chromium.org | 69ea396 | 2010-07-05 11:01:40 +0000 | [diff] [blame] | 141 | |
| 142 | // If probing finds an entry check that the value is a normal |
| 143 | // property. |
fschneider@chromium.org | 40b9da3 | 2010-06-28 11:29:21 +0000 | [diff] [blame] | 144 | __ bind(&done); // scratch2 == elements + 4 * index |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 145 | const int kElementsStartOffset = NameDictionary::kHeaderSize + |
| 146 | NameDictionary::kElementsStartIndex * kPointerSize; |
kmillikin@chromium.org | 69ea396 | 2010-07-05 11:01:40 +0000 | [diff] [blame] | 147 | const int kDetailsOffset = kElementsStartOffset + 2 * kPointerSize; |
| 148 | __ ldr(scratch1, FieldMemOperand(scratch2, kDetailsOffset)); |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 149 | __ tst(scratch1, Operand(PropertyDetails::TypeField::kMask << kSmiTagSize)); |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 150 | __ b(ne, miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 151 | |
| 152 | // Get the value at the masked, scaled index and return. |
sgjesse@chromium.org | 82dbbab | 2010-06-02 08:57:44 +0000 | [diff] [blame] | 153 | __ ldr(result, |
fschneider@chromium.org | 40b9da3 | 2010-06-28 11:29:21 +0000 | [diff] [blame] | 154 | FieldMemOperand(scratch2, kElementsStartOffset + 1 * kPointerSize)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 155 | } |
| 156 | |
| 157 | |
kmillikin@chromium.org | 69ea396 | 2010-07-05 11:01:40 +0000 | [diff] [blame] | 158 | // Helper function used from StoreIC::GenerateNormal. |
| 159 | // |
| 160 | // elements: Property dictionary. It is not clobbered if a jump to the miss |
| 161 | // label is done. |
| 162 | // name: Property name. It is not clobbered if a jump to the miss label is |
| 163 | // done |
| 164 | // value: The value to store. |
| 165 | // The two scratch registers need to be different from elements, name and |
| 166 | // result. |
| 167 | // The generated code assumes that the receiver has slow properties, |
| 168 | // is not a global object and does not have interceptors. |
| 169 | static void GenerateDictionaryStore(MacroAssembler* masm, |
| 170 | Label* miss, |
| 171 | Register elements, |
| 172 | Register name, |
| 173 | Register value, |
| 174 | Register scratch1, |
| 175 | Register scratch2) { |
| 176 | // Main use of the scratch registers. |
| 177 | // scratch1: Used as temporary and to hold the capacity of the property |
| 178 | // dictionary. |
| 179 | // scratch2: Used as temporary. |
| 180 | Label done; |
| 181 | |
| 182 | // Probe the dictionary. |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 183 | NameDictionaryLookupStub::GeneratePositiveLookup(masm, |
| 184 | miss, |
| 185 | &done, |
| 186 | elements, |
| 187 | name, |
| 188 | scratch1, |
| 189 | scratch2); |
kmillikin@chromium.org | 69ea396 | 2010-07-05 11:01:40 +0000 | [diff] [blame] | 190 | |
| 191 | // If probing finds an entry in the dictionary check that the value |
| 192 | // is a normal property that is not read only. |
| 193 | __ bind(&done); // scratch2 == elements + 4 * index |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 194 | const int kElementsStartOffset = NameDictionary::kHeaderSize + |
| 195 | NameDictionary::kElementsStartIndex * kPointerSize; |
kmillikin@chromium.org | 69ea396 | 2010-07-05 11:01:40 +0000 | [diff] [blame] | 196 | const int kDetailsOffset = kElementsStartOffset + 2 * kPointerSize; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 197 | const int kTypeAndReadOnlyMask = |
| 198 | (PropertyDetails::TypeField::kMask | |
| 199 | PropertyDetails::AttributesField::encode(READ_ONLY)) << kSmiTagSize; |
kmillikin@chromium.org | 69ea396 | 2010-07-05 11:01:40 +0000 | [diff] [blame] | 200 | __ ldr(scratch1, FieldMemOperand(scratch2, kDetailsOffset)); |
| 201 | __ tst(scratch1, Operand(kTypeAndReadOnlyMask)); |
| 202 | __ b(ne, miss); |
| 203 | |
| 204 | // Store the value at the masked, scaled index and return. |
| 205 | const int kValueOffset = kElementsStartOffset + kPointerSize; |
| 206 | __ add(scratch2, scratch2, Operand(kValueOffset - kHeapObjectTag)); |
| 207 | __ str(value, MemOperand(scratch2)); |
| 208 | |
| 209 | // Update the write barrier. Make sure not to clobber the value. |
| 210 | __ mov(scratch1, value); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 211 | __ RecordWrite( |
| 212 | elements, scratch2, scratch1, kLRHasNotBeenSaved, kDontSaveFPRegs); |
kmillikin@chromium.org | 69ea396 | 2010-07-05 11:01:40 +0000 | [diff] [blame] | 213 | } |
| 214 | |
| 215 | |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 216 | // Checks the receiver for special cases (value type, slow case bits). |
| 217 | // Falls through for regular JS object. |
| 218 | static void GenerateKeyedLoadReceiverCheck(MacroAssembler* masm, |
| 219 | Register receiver, |
ricow@chromium.org | 0b9f850 | 2010-08-18 07:45:01 +0000 | [diff] [blame] | 220 | Register map, |
| 221 | Register scratch, |
fschneider@chromium.org | 40b9da3 | 2010-06-28 11:29:21 +0000 | [diff] [blame] | 222 | int interceptor_bit, |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 223 | Label* slow) { |
| 224 | // Check that the object isn't a smi. |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 225 | __ JumpIfSmi(receiver, slow); |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 226 | // Get the map of the receiver. |
ricow@chromium.org | 0b9f850 | 2010-08-18 07:45:01 +0000 | [diff] [blame] | 227 | __ ldr(map, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 228 | // Check bit field. |
ricow@chromium.org | 0b9f850 | 2010-08-18 07:45:01 +0000 | [diff] [blame] | 229 | __ ldrb(scratch, FieldMemOperand(map, Map::kBitFieldOffset)); |
| 230 | __ tst(scratch, |
fschneider@chromium.org | 40b9da3 | 2010-06-28 11:29:21 +0000 | [diff] [blame] | 231 | Operand((1 << Map::kIsAccessCheckNeeded) | (1 << interceptor_bit))); |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 232 | __ b(ne, slow); |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 233 | // Check that the object is some kind of JS object EXCEPT JS Value type. |
| 234 | // In the case that the object is a value-wrapper object, |
| 235 | // we enter the runtime system to make sure that indexing into string |
| 236 | // objects work as intended. |
| 237 | ASSERT(JS_OBJECT_TYPE > JS_VALUE_TYPE); |
ricow@chromium.org | 0b9f850 | 2010-08-18 07:45:01 +0000 | [diff] [blame] | 238 | __ ldrb(scratch, FieldMemOperand(map, Map::kInstanceTypeOffset)); |
| 239 | __ cmp(scratch, Operand(JS_OBJECT_TYPE)); |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 240 | __ b(lt, slow); |
| 241 | } |
| 242 | |
| 243 | |
| 244 | // Loads an indexed element from a fast case array. |
ricow@chromium.org | 0b9f850 | 2010-08-18 07:45:01 +0000 | [diff] [blame] | 245 | // If not_fast_array is NULL, doesn't perform the elements map check. |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 246 | static void GenerateFastArrayLoad(MacroAssembler* masm, |
| 247 | Register receiver, |
| 248 | Register key, |
| 249 | Register elements, |
| 250 | Register scratch1, |
| 251 | Register scratch2, |
| 252 | Register result, |
| 253 | Label* not_fast_array, |
| 254 | Label* out_of_range) { |
| 255 | // Register use: |
| 256 | // |
| 257 | // receiver - holds the receiver on entry. |
| 258 | // Unchanged unless 'result' is the same register. |
| 259 | // |
| 260 | // key - holds the smi key on entry. |
| 261 | // Unchanged unless 'result' is the same register. |
| 262 | // |
| 263 | // elements - holds the elements of the receiver on exit. |
| 264 | // |
| 265 | // result - holds the result on exit if the load succeeded. |
| 266 | // Allowed to be the the same as 'receiver' or 'key'. |
| 267 | // Unchanged on bailout so 'receiver' and 'key' can be safely |
| 268 | // used by further computation. |
| 269 | // |
| 270 | // Scratch registers: |
| 271 | // |
| 272 | // scratch1 - used to hold elements map and elements length. |
| 273 | // Holds the elements map if not_fast_array branch is taken. |
| 274 | // |
| 275 | // scratch2 - used to hold the loaded value. |
| 276 | |
| 277 | __ ldr(elements, FieldMemOperand(receiver, JSObject::kElementsOffset)); |
ricow@chromium.org | 0b9f850 | 2010-08-18 07:45:01 +0000 | [diff] [blame] | 278 | if (not_fast_array != NULL) { |
| 279 | // Check that the object is in fast mode and writable. |
| 280 | __ ldr(scratch1, FieldMemOperand(elements, HeapObject::kMapOffset)); |
| 281 | __ LoadRoot(ip, Heap::kFixedArrayMapRootIndex); |
| 282 | __ cmp(scratch1, ip); |
| 283 | __ b(ne, not_fast_array); |
| 284 | } else { |
| 285 | __ AssertFastElements(elements); |
| 286 | } |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 287 | // Check that the key (index) is within bounds. |
| 288 | __ ldr(scratch1, FieldMemOperand(elements, FixedArray::kLengthOffset)); |
| 289 | __ cmp(key, Operand(scratch1)); |
| 290 | __ b(hs, out_of_range); |
| 291 | // Fast case: Do the load. |
| 292 | __ add(scratch1, elements, Operand(FixedArray::kHeaderSize - kHeapObjectTag)); |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 293 | __ ldr(scratch2, MemOperand::PointerAddressFromSmiKey(scratch1, key)); |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 294 | __ LoadRoot(ip, Heap::kTheHoleValueRootIndex); |
| 295 | __ cmp(scratch2, ip); |
| 296 | // In case the loaded value is the_hole we have to consult GetProperty |
| 297 | // to ensure the prototype chain is searched. |
| 298 | __ b(eq, out_of_range); |
| 299 | __ mov(result, scratch2); |
| 300 | } |
| 301 | |
| 302 | |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 303 | // Checks whether a key is an array index string or a unique name. |
| 304 | // Falls through if a key is a unique name. |
| 305 | static void GenerateKeyNameCheck(MacroAssembler* masm, |
| 306 | Register key, |
| 307 | Register map, |
| 308 | Register hash, |
| 309 | Label* index_string, |
| 310 | Label* not_unique) { |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 311 | // The key is not a smi. |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 312 | Label unique; |
| 313 | // Is it a name? |
| 314 | __ CompareObjectType(key, map, hash, LAST_UNIQUE_NAME_TYPE); |
| 315 | __ b(hi, not_unique); |
| 316 | STATIC_ASSERT(LAST_UNIQUE_NAME_TYPE == FIRST_NONSTRING_TYPE); |
| 317 | __ b(eq, &unique); |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 318 | |
| 319 | // Is the string an array index, with cached numeric value? |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 320 | __ ldr(hash, FieldMemOperand(key, Name::kHashFieldOffset)); |
| 321 | __ tst(hash, Operand(Name::kContainsCachedArrayIndexMask)); |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 322 | __ b(eq, index_string); |
| 323 | |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 324 | // Is the string internalized? We know it's a string, so a single |
| 325 | // bit test is enough. |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 326 | // map: key map |
| 327 | __ ldrb(hash, FieldMemOperand(map, Map::kInstanceTypeOffset)); |
jkummerow@chromium.org | ba72ec8 | 2013-07-22 09:21:20 +0000 | [diff] [blame] | 328 | STATIC_ASSERT(kInternalizedTag == 0); |
| 329 | __ tst(hash, Operand(kIsNotInternalizedMask)); |
| 330 | __ b(ne, not_unique); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 331 | |
| 332 | __ bind(&unique); |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 333 | } |
| 334 | |
| 335 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 336 | // Defined in ic.cc. |
| 337 | Object* CallIC_Miss(Arguments args); |
| 338 | |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 339 | // The generated code does not accept smi keys. |
| 340 | // The generated code falls through if both probes miss. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 341 | void CallICBase::GenerateMonomorphicCacheProbe(MacroAssembler* masm, |
| 342 | int argc, |
| 343 | Code::Kind kind, |
| 344 | Code::ExtraICState extra_state) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 345 | // ----------- S t a t e ------------- |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 346 | // -- r1 : receiver |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 347 | // -- r2 : name |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 348 | // ----------------------------------- |
| 349 | Label number, non_number, non_string, boolean, probe, miss; |
| 350 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 351 | // Probe the stub cache. |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 352 | Code::Flags flags = Code::ComputeFlags(kind, |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 353 | MONOMORPHIC, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 354 | extra_state, |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 355 | Code::NORMAL, |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 356 | argc); |
dslomov@chromium.org | e97852d | 2013-09-12 09:02:59 +0000 | [diff] [blame] | 357 | masm->isolate()->stub_cache()->GenerateProbe( |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 358 | masm, flags, r1, r2, r3, r4, r5, r6); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 359 | |
| 360 | // If the stub cache probing failed, the receiver might be a value. |
| 361 | // For value objects, we use the map of the prototype objects for |
| 362 | // the corresponding JSValue for the cache and that is what we need |
| 363 | // to probe. |
| 364 | // |
| 365 | // Check for number. |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 366 | __ JumpIfSmi(r1, &number); |
ager@chromium.org | eadaf22 | 2009-06-16 09:43:10 +0000 | [diff] [blame] | 367 | __ CompareObjectType(r1, r3, r3, HEAP_NUMBER_TYPE); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 368 | __ b(ne, &non_number); |
| 369 | __ bind(&number); |
| 370 | StubCompiler::GenerateLoadGlobalFunctionPrototype( |
| 371 | masm, Context::NUMBER_FUNCTION_INDEX, r1); |
| 372 | __ b(&probe); |
| 373 | |
| 374 | // Check for string. |
| 375 | __ bind(&non_number); |
| 376 | __ cmp(r3, Operand(FIRST_NONSTRING_TYPE)); |
| 377 | __ b(hs, &non_string); |
| 378 | StubCompiler::GenerateLoadGlobalFunctionPrototype( |
| 379 | masm, Context::STRING_FUNCTION_INDEX, r1); |
| 380 | __ b(&probe); |
| 381 | |
| 382 | // Check for boolean. |
| 383 | __ bind(&non_string); |
ager@chromium.org | ab99eea | 2009-08-25 07:05:41 +0000 | [diff] [blame] | 384 | __ LoadRoot(ip, Heap::kTrueValueRootIndex); |
| 385 | __ cmp(r1, ip); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 386 | __ b(eq, &boolean); |
ager@chromium.org | ab99eea | 2009-08-25 07:05:41 +0000 | [diff] [blame] | 387 | __ LoadRoot(ip, Heap::kFalseValueRootIndex); |
| 388 | __ cmp(r1, ip); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 389 | __ b(ne, &miss); |
| 390 | __ bind(&boolean); |
| 391 | StubCompiler::GenerateLoadGlobalFunctionPrototype( |
| 392 | masm, Context::BOOLEAN_FUNCTION_INDEX, r1); |
| 393 | |
| 394 | // Probe the stub cache for the value object. |
| 395 | __ bind(&probe); |
dslomov@chromium.org | e97852d | 2013-09-12 09:02:59 +0000 | [diff] [blame] | 396 | masm->isolate()->stub_cache()->GenerateProbe( |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 397 | masm, flags, r1, r2, r3, r4, r5, r6); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 398 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 399 | __ bind(&miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 400 | } |
| 401 | |
| 402 | |
fschneider@chromium.org | 40b9da3 | 2010-06-28 11:29:21 +0000 | [diff] [blame] | 403 | static void GenerateFunctionTailCall(MacroAssembler* masm, |
| 404 | int argc, |
| 405 | Label* miss, |
| 406 | Register scratch) { |
| 407 | // r1: function |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 408 | |
| 409 | // Check that the value isn't a smi. |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 410 | __ JumpIfSmi(r1, miss); |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 411 | |
| 412 | // Check that the value is a JSFunction. |
lrn@chromium.org | c34f580 | 2010-04-28 12:53:43 +0000 | [diff] [blame] | 413 | __ CompareObjectType(r1, scratch, scratch, JS_FUNCTION_TYPE); |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 414 | __ b(ne, miss); |
| 415 | |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 416 | // Invoke the function. |
| 417 | ParameterCount actual(argc); |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 418 | __ InvokeFunction(r1, actual, JUMP_FUNCTION, |
| 419 | NullCallWrapper(), CALL_AS_METHOD); |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 420 | } |
| 421 | |
| 422 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 423 | void CallICBase::GenerateNormal(MacroAssembler* masm, int argc) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 424 | // ----------- S t a t e ------------- |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 425 | // -- r2 : name |
| 426 | // -- lr : return address |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 427 | // ----------------------------------- |
fschneider@chromium.org | 40b9da3 | 2010-06-28 11:29:21 +0000 | [diff] [blame] | 428 | Label miss; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 429 | |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 430 | // Get the receiver of the function from the stack into r1. |
| 431 | __ ldr(r1, MemOperand(sp, argc * kPointerSize)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 432 | |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 433 | GenerateNameDictionaryReceiverCheck(masm, r1, r0, r3, r4, &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 434 | |
fschneider@chromium.org | 40b9da3 | 2010-06-28 11:29:21 +0000 | [diff] [blame] | 435 | // r0: elements |
| 436 | // Search the dictionary - put result in register r1. |
| 437 | GenerateDictionaryLoad(masm, &miss, r0, r2, r1, r3, r4); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 438 | |
fschneider@chromium.org | 40b9da3 | 2010-06-28 11:29:21 +0000 | [diff] [blame] | 439 | GenerateFunctionTailCall(masm, argc, &miss, r4); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 440 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 441 | __ bind(&miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 442 | } |
| 443 | |
| 444 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 445 | void CallICBase::GenerateMiss(MacroAssembler* masm, |
| 446 | int argc, |
| 447 | IC::UtilityId id, |
| 448 | Code::ExtraICState extra_state) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 449 | // ----------- S t a t e ------------- |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 450 | // -- r2 : name |
| 451 | // -- lr : return address |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 452 | // ----------------------------------- |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 453 | Isolate* isolate = masm->isolate(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 454 | |
fschneider@chromium.org | 40b9da3 | 2010-06-28 11:29:21 +0000 | [diff] [blame] | 455 | if (id == IC::kCallIC_Miss) { |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 456 | __ IncrementCounter(isolate->counters()->call_miss(), 1, r3, r4); |
fschneider@chromium.org | 40b9da3 | 2010-06-28 11:29:21 +0000 | [diff] [blame] | 457 | } else { |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 458 | __ IncrementCounter(isolate->counters()->keyed_call_miss(), 1, r3, r4); |
fschneider@chromium.org | 40b9da3 | 2010-06-28 11:29:21 +0000 | [diff] [blame] | 459 | } |
| 460 | |
kasperl@chromium.org | b912362 | 2008-09-17 14:05:56 +0000 | [diff] [blame] | 461 | // Get the receiver of the function from the stack. |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 462 | __ ldr(r3, MemOperand(sp, argc * kPointerSize)); |
kasperl@chromium.org | b912362 | 2008-09-17 14:05:56 +0000 | [diff] [blame] | 463 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 464 | { |
| 465 | FrameScope scope(masm, StackFrame::INTERNAL); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 466 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 467 | // Push the receiver and the name of the function. |
| 468 | __ Push(r3, r2); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 469 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 470 | // Call the entry. |
| 471 | __ mov(r0, Operand(2)); |
| 472 | __ mov(r1, Operand(ExternalReference(IC_Utility(id), isolate))); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 473 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 474 | CEntryStub stub(1); |
| 475 | __ CallStub(&stub); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 476 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 477 | // Move result to r1 and leave the internal frame. |
| 478 | __ mov(r1, Operand(r0)); |
| 479 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 480 | |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 481 | // Check if the receiver is a global object of some sort. |
fschneider@chromium.org | 40b9da3 | 2010-06-28 11:29:21 +0000 | [diff] [blame] | 482 | // This can happen only for regular CallIC but not KeyedCallIC. |
| 483 | if (id == IC::kCallIC_Miss) { |
| 484 | Label invoke, global; |
| 485 | __ ldr(r2, MemOperand(sp, argc * kPointerSize)); // receiver |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 486 | __ JumpIfSmi(r2, &invoke); |
fschneider@chromium.org | 40b9da3 | 2010-06-28 11:29:21 +0000 | [diff] [blame] | 487 | __ CompareObjectType(r2, r3, r3, JS_GLOBAL_OBJECT_TYPE); |
| 488 | __ b(eq, &global); |
| 489 | __ cmp(r3, Operand(JS_BUILTINS_OBJECT_TYPE)); |
| 490 | __ b(ne, &invoke); |
kasperl@chromium.org | 9fe21c6 | 2008-10-28 08:53:51 +0000 | [diff] [blame] | 491 | |
fschneider@chromium.org | 40b9da3 | 2010-06-28 11:29:21 +0000 | [diff] [blame] | 492 | // Patch the receiver on the stack. |
| 493 | __ bind(&global); |
| 494 | __ ldr(r2, FieldMemOperand(r2, GlobalObject::kGlobalReceiverOffset)); |
| 495 | __ str(r2, MemOperand(sp, argc * kPointerSize)); |
| 496 | __ bind(&invoke); |
| 497 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 498 | |
mads.s.ager@gmail.com | 769cc96 | 2008-08-06 10:02:49 +0000 | [diff] [blame] | 499 | // Invoke the function. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 500 | CallKind call_kind = CallICBase::Contextual::decode(extra_state) |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 501 | ? CALL_AS_FUNCTION |
| 502 | : CALL_AS_METHOD; |
mads.s.ager@gmail.com | 769cc96 | 2008-08-06 10:02:49 +0000 | [diff] [blame] | 503 | ParameterCount actual(argc); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 504 | __ InvokeFunction(r1, |
| 505 | actual, |
| 506 | JUMP_FUNCTION, |
| 507 | NullCallWrapper(), |
| 508 | call_kind); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 509 | } |
| 510 | |
| 511 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 512 | void CallIC::GenerateMegamorphic(MacroAssembler* masm, |
| 513 | int argc, |
| 514 | Code::ExtraICState extra_ic_state) { |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 515 | // ----------- S t a t e ------------- |
| 516 | // -- r2 : name |
| 517 | // -- lr : return address |
| 518 | // ----------------------------------- |
| 519 | |
| 520 | // Get the receiver of the function from the stack into r1. |
| 521 | __ ldr(r1, MemOperand(sp, argc * kPointerSize)); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 522 | GenerateMonomorphicCacheProbe(masm, argc, Code::CALL_IC, extra_ic_state); |
| 523 | GenerateMiss(masm, argc, extra_ic_state); |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 524 | } |
| 525 | |
| 526 | |
lrn@chromium.org | 1af7e1b | 2010-06-07 11:12:01 +0000 | [diff] [blame] | 527 | void KeyedCallIC::GenerateMegamorphic(MacroAssembler* masm, int argc) { |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 528 | // ----------- S t a t e ------------- |
| 529 | // -- r2 : name |
| 530 | // -- lr : return address |
| 531 | // ----------------------------------- |
| 532 | |
| 533 | // Get the receiver of the function from the stack into r1. |
| 534 | __ ldr(r1, MemOperand(sp, argc * kPointerSize)); |
| 535 | |
| 536 | Label do_call, slow_call, slow_load, slow_reload_receiver; |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 537 | Label check_number_dictionary, check_name, lookup_monomorphic_cache; |
| 538 | Label index_smi, index_name; |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 539 | |
| 540 | // Check that the key is a smi. |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 541 | __ JumpIfNotSmi(r2, &check_name); |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 542 | __ bind(&index_smi); |
| 543 | // Now the key is known to be a smi. This place is also jumped to from below |
| 544 | // where a numeric string is converted to a smi. |
| 545 | |
fschneider@chromium.org | 40b9da3 | 2010-06-28 11:29:21 +0000 | [diff] [blame] | 546 | GenerateKeyedLoadReceiverCheck( |
| 547 | masm, r1, r0, r3, Map::kHasIndexedInterceptor, &slow_call); |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 548 | |
| 549 | GenerateFastArrayLoad( |
| 550 | masm, r1, r2, r4, r3, r0, r1, &check_number_dictionary, &slow_load); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 551 | Counters* counters = masm->isolate()->counters(); |
| 552 | __ IncrementCounter(counters->keyed_call_generic_smi_fast(), 1, r0, r3); |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 553 | |
| 554 | __ bind(&do_call); |
| 555 | // receiver in r1 is not used after this point. |
| 556 | // r2: key |
| 557 | // r1: function |
fschneider@chromium.org | 40b9da3 | 2010-06-28 11:29:21 +0000 | [diff] [blame] | 558 | GenerateFunctionTailCall(masm, argc, &slow_call, r0); |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 559 | |
| 560 | __ bind(&check_number_dictionary); |
| 561 | // r2: key |
| 562 | // r3: elements map |
| 563 | // r4: elements |
| 564 | // Check whether the elements is a number dictionary. |
| 565 | __ LoadRoot(ip, Heap::kHashTableMapRootIndex); |
| 566 | __ cmp(r3, ip); |
| 567 | __ b(ne, &slow_load); |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 568 | __ SmiUntag(r0, r2); |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 569 | // r0: untagged index |
sgjesse@chromium.org | 6db8871 | 2011-07-11 11:41:22 +0000 | [diff] [blame] | 570 | __ LoadFromNumberDictionary(&slow_load, r4, r2, r1, r0, r3, r5); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 571 | __ IncrementCounter(counters->keyed_call_generic_smi_dict(), 1, r0, r3); |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 572 | __ jmp(&do_call); |
| 573 | |
| 574 | __ bind(&slow_load); |
| 575 | // This branch is taken when calling KeyedCallIC_Miss is neither required |
| 576 | // nor beneficial. |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 577 | __ IncrementCounter(counters->keyed_call_generic_slow_load(), 1, r0, r3); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 578 | { |
| 579 | FrameScope scope(masm, StackFrame::INTERNAL); |
verwaest@chromium.org | 057bd50 | 2013-11-06 12:03:29 +0000 | [diff] [blame] | 580 | __ Push(r2, r1); // save the key and the receiver |
| 581 | __ push(r2); // pass the receiver and the key |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 582 | __ CallRuntime(Runtime::kKeyedGetProperty, 2); |
| 583 | __ pop(r2); // restore the key |
| 584 | } |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 585 | __ mov(r1, r0); |
| 586 | __ jmp(&do_call); |
| 587 | |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 588 | __ bind(&check_name); |
| 589 | GenerateKeyNameCheck(masm, r2, r0, r3, &index_name, &slow_call); |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 590 | |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 591 | // The key is known to be a unique name. |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 592 | // If the receiver is a regular JS object with slow properties then do |
| 593 | // a quick inline probe of the receiver's dictionary. |
| 594 | // Otherwise do the monomorphic cache probe. |
fschneider@chromium.org | 40b9da3 | 2010-06-28 11:29:21 +0000 | [diff] [blame] | 595 | GenerateKeyedLoadReceiverCheck( |
| 596 | masm, r1, r0, r3, Map::kHasNamedInterceptor, &lookup_monomorphic_cache); |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 597 | |
fschneider@chromium.org | 40b9da3 | 2010-06-28 11:29:21 +0000 | [diff] [blame] | 598 | __ ldr(r0, FieldMemOperand(r1, JSObject::kPropertiesOffset)); |
| 599 | __ ldr(r3, FieldMemOperand(r0, HeapObject::kMapOffset)); |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 600 | __ LoadRoot(ip, Heap::kHashTableMapRootIndex); |
| 601 | __ cmp(r3, ip); |
| 602 | __ b(ne, &lookup_monomorphic_cache); |
| 603 | |
fschneider@chromium.org | 40b9da3 | 2010-06-28 11:29:21 +0000 | [diff] [blame] | 604 | GenerateDictionaryLoad(masm, &slow_load, r0, r2, r1, r3, r4); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 605 | __ IncrementCounter(counters->keyed_call_generic_lookup_dict(), 1, r0, r3); |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 606 | __ jmp(&do_call); |
| 607 | |
| 608 | __ bind(&lookup_monomorphic_cache); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 609 | __ IncrementCounter(counters->keyed_call_generic_lookup_cache(), 1, r0, r3); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 610 | GenerateMonomorphicCacheProbe(masm, |
| 611 | argc, |
| 612 | Code::KEYED_CALL_IC, |
| 613 | Code::kNoExtraICState); |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 614 | // Fall through on miss. |
| 615 | |
| 616 | __ bind(&slow_call); |
| 617 | // This branch is taken if: |
| 618 | // - the receiver requires boxing or access check, |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 619 | // - the key is neither smi nor a unique name, |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 620 | // - the value loaded is not a function, |
| 621 | // - there is hope that the runtime will create a monomorphic call stub |
| 622 | // that will get fetched next time. |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 623 | __ IncrementCounter(counters->keyed_call_generic_slow(), 1, r0, r3); |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 624 | GenerateMiss(masm, argc); |
| 625 | |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 626 | __ bind(&index_name); |
ricow@chromium.org | d236f4d | 2010-09-01 06:52:08 +0000 | [diff] [blame] | 627 | __ IndexFromHash(r3, r2); |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 628 | // Now jump to the place where smi keys are handled. |
| 629 | __ jmp(&index_smi); |
lrn@chromium.org | 1af7e1b | 2010-06-07 11:12:01 +0000 | [diff] [blame] | 630 | } |
| 631 | |
| 632 | |
| 633 | void KeyedCallIC::GenerateNormal(MacroAssembler* masm, int argc) { |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 634 | // ----------- S t a t e ------------- |
| 635 | // -- r2 : name |
| 636 | // -- lr : return address |
| 637 | // ----------------------------------- |
| 638 | |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 639 | // Check if the name is really a name. |
kmillikin@chromium.org | 49edbdf | 2011-02-16 12:32:18 +0000 | [diff] [blame] | 640 | Label miss; |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 641 | __ JumpIfSmi(r2, &miss); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 642 | __ IsObjectNameType(r2, r0, &miss); |
kmillikin@chromium.org | 49edbdf | 2011-02-16 12:32:18 +0000 | [diff] [blame] | 643 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 644 | CallICBase::GenerateNormal(masm, argc); |
kmillikin@chromium.org | 49edbdf | 2011-02-16 12:32:18 +0000 | [diff] [blame] | 645 | __ bind(&miss); |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 646 | GenerateMiss(masm, argc); |
lrn@chromium.org | 1af7e1b | 2010-06-07 11:12:01 +0000 | [diff] [blame] | 647 | } |
| 648 | |
| 649 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 650 | void LoadIC::GenerateMegamorphic(MacroAssembler* masm) { |
| 651 | // ----------- S t a t e ------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 652 | // -- r2 : name |
| 653 | // -- lr : return address |
lrn@chromium.org | c34f580 | 2010-04-28 12:53:43 +0000 | [diff] [blame] | 654 | // -- r0 : receiver |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 655 | // ----------------------------------- |
| 656 | |
| 657 | // Probe the stub cache. |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 658 | Code::Flags flags = Code::ComputeFlags( |
jkummerow@chromium.org | 32aa03c | 2013-10-01 08:21:50 +0000 | [diff] [blame] | 659 | Code::HANDLER, MONOMORPHIC, Code::kNoExtraICState, |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 660 | Code::NORMAL, Code::LOAD_IC); |
dslomov@chromium.org | e97852d | 2013-09-12 09:02:59 +0000 | [diff] [blame] | 661 | masm->isolate()->stub_cache()->GenerateProbe( |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 662 | masm, flags, r0, r2, r3, r4, r5, r6); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 663 | |
| 664 | // Cache miss: Jump to runtime. |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 665 | GenerateMiss(masm); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 666 | } |
| 667 | |
| 668 | |
| 669 | void LoadIC::GenerateNormal(MacroAssembler* masm) { |
| 670 | // ----------- S t a t e ------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 671 | // -- r2 : name |
| 672 | // -- lr : return address |
lrn@chromium.org | c34f580 | 2010-04-28 12:53:43 +0000 | [diff] [blame] | 673 | // -- r0 : receiver |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 674 | // ----------------------------------- |
fschneider@chromium.org | 40b9da3 | 2010-06-28 11:29:21 +0000 | [diff] [blame] | 675 | Label miss; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 676 | |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 677 | GenerateNameDictionaryReceiverCheck(masm, r0, r1, r3, r4, &miss); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 678 | |
fschneider@chromium.org | 40b9da3 | 2010-06-28 11:29:21 +0000 | [diff] [blame] | 679 | // r1: elements |
| 680 | GenerateDictionaryLoad(masm, &miss, r1, r2, r0, r3, r4); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 681 | __ Ret(); |
| 682 | |
sgjesse@chromium.org | 82dbbab | 2010-06-02 08:57:44 +0000 | [diff] [blame] | 683 | // Cache miss: Jump to runtime. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 684 | __ bind(&miss); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 685 | GenerateMiss(masm); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 686 | } |
| 687 | |
| 688 | |
| 689 | void LoadIC::GenerateMiss(MacroAssembler* masm) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 690 | // ----------- S t a t e ------------- |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 691 | // -- r2 : name |
| 692 | // -- lr : return address |
lrn@chromium.org | c34f580 | 2010-04-28 12:53:43 +0000 | [diff] [blame] | 693 | // -- r0 : receiver |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 694 | // ----------------------------------- |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 695 | Isolate* isolate = masm->isolate(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 696 | |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 697 | __ IncrementCounter(isolate->counters()->load_miss(), 1, r3, r4); |
fschneider@chromium.org | 40b9da3 | 2010-06-28 11:29:21 +0000 | [diff] [blame] | 698 | |
lrn@chromium.org | c34f580 | 2010-04-28 12:53:43 +0000 | [diff] [blame] | 699 | __ mov(r3, r0); |
| 700 | __ Push(r3, r2); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 701 | |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 702 | // Perform tail call to the entry. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 703 | ExternalReference ref = |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 704 | ExternalReference(IC_Utility(kLoadIC_Miss), isolate); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 705 | __ TailCallExternalReference(ref, 2, 1); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 706 | } |
| 707 | |
christian.plesner.hansen@gmail.com | 37abdec | 2009-01-06 14:43:28 +0000 | [diff] [blame] | 708 | |
verwaest@chromium.org | d4be0f0 | 2013-06-05 13:39:03 +0000 | [diff] [blame] | 709 | void LoadIC::GenerateRuntimeGetProperty(MacroAssembler* masm) { |
| 710 | // ---------- S t a t e -------------- |
| 711 | // -- r2 : name |
| 712 | // -- lr : return address |
| 713 | // -- r0 : receiver |
verwaest@chromium.org | d4be0f0 | 2013-06-05 13:39:03 +0000 | [diff] [blame] | 714 | // ----------------------------------- |
| 715 | |
| 716 | __ mov(r3, r0); |
| 717 | __ Push(r3, r2); |
| 718 | |
| 719 | __ TailCallRuntime(Runtime::kGetProperty, 2, 1); |
| 720 | } |
| 721 | |
| 722 | |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 723 | static MemOperand GenerateMappedArgumentsLookup(MacroAssembler* masm, |
| 724 | Register object, |
| 725 | Register key, |
| 726 | Register scratch1, |
| 727 | Register scratch2, |
| 728 | Register scratch3, |
| 729 | Label* unmapped_case, |
| 730 | Label* slow_case) { |
| 731 | Heap* heap = masm->isolate()->heap(); |
| 732 | |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 733 | // Check that the receiver is a JSObject. Because of the map check |
| 734 | // later, we do not need to check for interceptors or whether it |
| 735 | // requires access checks. |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 736 | __ JumpIfSmi(object, slow_case); |
ager@chromium.org | 04921a8 | 2011-06-27 13:21:41 +0000 | [diff] [blame] | 737 | // Check that the object is some kind of JSObject. |
| 738 | __ CompareObjectType(object, scratch1, scratch2, FIRST_JS_RECEIVER_TYPE); |
| 739 | __ b(lt, slow_case); |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 740 | |
| 741 | // Check that the key is a positive smi. |
danno@chromium.org | b10deab | 2012-05-07 14:28:47 +0000 | [diff] [blame] | 742 | __ tst(key, Operand(0x80000001)); |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 743 | __ b(ne, slow_case); |
| 744 | |
| 745 | // Load the elements into scratch1 and check its map. |
| 746 | Handle<Map> arguments_map(heap->non_strict_arguments_elements_map()); |
| 747 | __ ldr(scratch1, FieldMemOperand(object, JSObject::kElementsOffset)); |
| 748 | __ CheckMap(scratch1, scratch2, arguments_map, slow_case, DONT_DO_SMI_CHECK); |
| 749 | |
| 750 | // Check if element is in the range of mapped arguments. If not, jump |
| 751 | // to the unmapped lookup with the parameter map in scratch1. |
| 752 | __ ldr(scratch2, FieldMemOperand(scratch1, FixedArray::kLengthOffset)); |
| 753 | __ sub(scratch2, scratch2, Operand(Smi::FromInt(2))); |
| 754 | __ cmp(key, Operand(scratch2)); |
| 755 | __ b(cs, unmapped_case); |
| 756 | |
| 757 | // Load element index and check whether it is the hole. |
| 758 | const int kOffset = |
| 759 | FixedArray::kHeaderSize + 2 * kPointerSize - kHeapObjectTag; |
| 760 | |
| 761 | __ mov(scratch3, Operand(kPointerSize >> 1)); |
| 762 | __ mul(scratch3, key, scratch3); |
| 763 | __ add(scratch3, scratch3, Operand(kOffset)); |
| 764 | |
| 765 | __ ldr(scratch2, MemOperand(scratch1, scratch3)); |
| 766 | __ LoadRoot(scratch3, Heap::kTheHoleValueRootIndex); |
| 767 | __ cmp(scratch2, scratch3); |
| 768 | __ b(eq, unmapped_case); |
| 769 | |
| 770 | // Load value from context and return it. We can reuse scratch1 because |
| 771 | // we do not jump to the unmapped lookup (which requires the parameter |
| 772 | // map in scratch1). |
| 773 | __ ldr(scratch1, FieldMemOperand(scratch1, FixedArray::kHeaderSize)); |
| 774 | __ mov(scratch3, Operand(kPointerSize >> 1)); |
| 775 | __ mul(scratch3, scratch2, scratch3); |
| 776 | __ add(scratch3, scratch3, Operand(Context::kHeaderSize - kHeapObjectTag)); |
| 777 | return MemOperand(scratch1, scratch3); |
| 778 | } |
| 779 | |
| 780 | |
| 781 | static MemOperand GenerateUnmappedArgumentsLookup(MacroAssembler* masm, |
| 782 | Register key, |
| 783 | Register parameter_map, |
| 784 | Register scratch, |
| 785 | Label* slow_case) { |
| 786 | // Element is in arguments backing store, which is referenced by the |
| 787 | // second element of the parameter_map. The parameter_map register |
| 788 | // must be loaded with the parameter map of the arguments object and is |
| 789 | // overwritten. |
| 790 | const int kBackingStoreOffset = FixedArray::kHeaderSize + kPointerSize; |
| 791 | Register backing_store = parameter_map; |
| 792 | __ ldr(backing_store, FieldMemOperand(parameter_map, kBackingStoreOffset)); |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 793 | Handle<Map> fixed_array_map(masm->isolate()->heap()->fixed_array_map()); |
| 794 | __ CheckMap(backing_store, scratch, fixed_array_map, slow_case, |
| 795 | DONT_DO_SMI_CHECK); |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 796 | __ ldr(scratch, FieldMemOperand(backing_store, FixedArray::kLengthOffset)); |
| 797 | __ cmp(key, Operand(scratch)); |
| 798 | __ b(cs, slow_case); |
| 799 | __ mov(scratch, Operand(kPointerSize >> 1)); |
| 800 | __ mul(scratch, key, scratch); |
| 801 | __ add(scratch, |
| 802 | scratch, |
| 803 | Operand(FixedArray::kHeaderSize - kHeapObjectTag)); |
| 804 | return MemOperand(backing_store, scratch); |
| 805 | } |
| 806 | |
| 807 | |
| 808 | void KeyedLoadIC::GenerateNonStrictArguments(MacroAssembler* masm) { |
| 809 | // ---------- S t a t e -------------- |
| 810 | // -- lr : return address |
| 811 | // -- r0 : key |
| 812 | // -- r1 : receiver |
| 813 | // ----------------------------------- |
| 814 | Label slow, notin; |
| 815 | MemOperand mapped_location = |
| 816 | GenerateMappedArgumentsLookup(masm, r1, r0, r2, r3, r4, ¬in, &slow); |
| 817 | __ ldr(r0, mapped_location); |
| 818 | __ Ret(); |
| 819 | __ bind(¬in); |
| 820 | // The unmapped lookup expects that the parameter map is in r2. |
| 821 | MemOperand unmapped_location = |
| 822 | GenerateUnmappedArgumentsLookup(masm, r0, r2, r3, &slow); |
| 823 | __ ldr(r2, unmapped_location); |
| 824 | __ LoadRoot(r3, Heap::kTheHoleValueRootIndex); |
| 825 | __ cmp(r2, r3); |
| 826 | __ b(eq, &slow); |
| 827 | __ mov(r0, r2); |
| 828 | __ Ret(); |
| 829 | __ bind(&slow); |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 830 | GenerateMiss(masm, MISS); |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 831 | } |
| 832 | |
| 833 | |
| 834 | void KeyedStoreIC::GenerateNonStrictArguments(MacroAssembler* masm) { |
| 835 | // ---------- S t a t e -------------- |
| 836 | // -- r0 : value |
| 837 | // -- r1 : key |
| 838 | // -- r2 : receiver |
| 839 | // -- lr : return address |
| 840 | // ----------------------------------- |
| 841 | Label slow, notin; |
| 842 | MemOperand mapped_location = |
| 843 | GenerateMappedArgumentsLookup(masm, r2, r1, r3, r4, r5, ¬in, &slow); |
| 844 | __ str(r0, mapped_location); |
fschneider@chromium.org | 59c1426 | 2011-06-23 10:27:56 +0000 | [diff] [blame] | 845 | __ add(r6, r3, r5); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 846 | __ mov(r9, r0); |
| 847 | __ RecordWrite(r3, r6, r9, kLRHasNotBeenSaved, kDontSaveFPRegs); |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 848 | __ Ret(); |
| 849 | __ bind(¬in); |
| 850 | // The unmapped lookup expects that the parameter map is in r3. |
| 851 | MemOperand unmapped_location = |
| 852 | GenerateUnmappedArgumentsLookup(masm, r1, r3, r4, &slow); |
| 853 | __ str(r0, unmapped_location); |
fschneider@chromium.org | 59c1426 | 2011-06-23 10:27:56 +0000 | [diff] [blame] | 854 | __ add(r6, r3, r4); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 855 | __ mov(r9, r0); |
| 856 | __ RecordWrite(r3, r6, r9, kLRHasNotBeenSaved, kDontSaveFPRegs); |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 857 | __ Ret(); |
| 858 | __ bind(&slow); |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 859 | GenerateMiss(masm, MISS); |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 860 | } |
| 861 | |
| 862 | |
| 863 | void KeyedCallIC::GenerateNonStrictArguments(MacroAssembler* masm, |
| 864 | int argc) { |
| 865 | // ----------- S t a t e ------------- |
| 866 | // -- r2 : name |
| 867 | // -- lr : return address |
| 868 | // ----------------------------------- |
| 869 | Label slow, notin; |
| 870 | // Load receiver. |
| 871 | __ ldr(r1, MemOperand(sp, argc * kPointerSize)); |
| 872 | MemOperand mapped_location = |
| 873 | GenerateMappedArgumentsLookup(masm, r1, r2, r3, r4, r5, ¬in, &slow); |
| 874 | __ ldr(r1, mapped_location); |
| 875 | GenerateFunctionTailCall(masm, argc, &slow, r3); |
| 876 | __ bind(¬in); |
| 877 | // The unmapped lookup expects that the parameter map is in r3. |
| 878 | MemOperand unmapped_location = |
| 879 | GenerateUnmappedArgumentsLookup(masm, r2, r3, r4, &slow); |
| 880 | __ ldr(r1, unmapped_location); |
| 881 | __ LoadRoot(r3, Heap::kTheHoleValueRootIndex); |
| 882 | __ cmp(r1, r3); |
| 883 | __ b(eq, &slow); |
| 884 | GenerateFunctionTailCall(masm, argc, &slow, r3); |
| 885 | __ bind(&slow); |
| 886 | GenerateMiss(masm, argc); |
| 887 | } |
| 888 | |
| 889 | |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 890 | void KeyedLoadIC::GenerateMiss(MacroAssembler* masm, ICMissMode miss_mode) { |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 891 | // ---------- S t a t e -------------- |
| 892 | // -- lr : return address |
ager@chromium.org | ac091b7 | 2010-05-05 07:34:42 +0000 | [diff] [blame] | 893 | // -- r0 : key |
sgjesse@chromium.org | 720dc0b | 2010-05-10 09:25:39 +0000 | [diff] [blame] | 894 | // -- r1 : receiver |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 895 | // ----------------------------------- |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 896 | Isolate* isolate = masm->isolate(); |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 897 | |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 898 | __ IncrementCounter(isolate->counters()->keyed_load_miss(), 1, r3, r4); |
fschneider@chromium.org | 40b9da3 | 2010-06-28 11:29:21 +0000 | [diff] [blame] | 899 | |
ager@chromium.org | ac091b7 | 2010-05-05 07:34:42 +0000 | [diff] [blame] | 900 | __ Push(r1, r0); |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 901 | |
ager@chromium.org | ea91cc5 | 2011-05-23 06:06:11 +0000 | [diff] [blame] | 902 | // Perform tail call to the entry. |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 903 | ExternalReference ref = miss_mode == MISS_FORCE_GENERIC |
ager@chromium.org | ea91cc5 | 2011-05-23 06:06:11 +0000 | [diff] [blame] | 904 | ? ExternalReference(IC_Utility(kKeyedLoadIC_MissForceGeneric), isolate) |
| 905 | : ExternalReference(IC_Utility(kKeyedLoadIC_Miss), isolate); |
| 906 | |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 907 | __ TailCallExternalReference(ref, 2, 1); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 908 | } |
| 909 | |
| 910 | |
| 911 | void KeyedLoadIC::GenerateRuntimeGetProperty(MacroAssembler* masm) { |
| 912 | // ---------- S t a t e -------------- |
| 913 | // -- lr : return address |
ager@chromium.org | ac091b7 | 2010-05-05 07:34:42 +0000 | [diff] [blame] | 914 | // -- r0 : key |
sgjesse@chromium.org | 720dc0b | 2010-05-10 09:25:39 +0000 | [diff] [blame] | 915 | // -- r1 : receiver |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 916 | // ----------------------------------- |
| 917 | |
ager@chromium.org | ac091b7 | 2010-05-05 07:34:42 +0000 | [diff] [blame] | 918 | __ Push(r1, r0); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 919 | |
sgjesse@chromium.org | 82dbbab | 2010-06-02 08:57:44 +0000 | [diff] [blame] | 920 | __ TailCallRuntime(Runtime::kKeyedGetProperty, 2, 1); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 921 | } |
| 922 | |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 923 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 924 | void KeyedLoadIC::GenerateGeneric(MacroAssembler* masm) { |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 925 | // ---------- S t a t e -------------- |
| 926 | // -- lr : return address |
ager@chromium.org | ac091b7 | 2010-05-05 07:34:42 +0000 | [diff] [blame] | 927 | // -- r0 : key |
sgjesse@chromium.org | 720dc0b | 2010-05-10 09:25:39 +0000 | [diff] [blame] | 928 | // -- r1 : receiver |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 929 | // ----------------------------------- |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 930 | Label slow, check_name, index_smi, index_name, property_array_property; |
danno@chromium.org | 4d3fe4e | 2011-03-10 10:14:28 +0000 | [diff] [blame] | 931 | Label probe_dictionary, check_number_dictionary; |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 932 | |
sgjesse@chromium.org | 720dc0b | 2010-05-10 09:25:39 +0000 | [diff] [blame] | 933 | Register key = r0; |
| 934 | Register receiver = r1; |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 935 | |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 936 | Isolate* isolate = masm->isolate(); |
| 937 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 938 | // Check that the key is a smi. |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 939 | __ JumpIfNotSmi(key, &check_name); |
sgjesse@chromium.org | 82dbbab | 2010-06-02 08:57:44 +0000 | [diff] [blame] | 940 | __ bind(&index_smi); |
| 941 | // Now the key is known to be a smi. This place is also jumped to from below |
| 942 | // where a numeric string is converted to a smi. |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 943 | |
fschneider@chromium.org | 40b9da3 | 2010-06-28 11:29:21 +0000 | [diff] [blame] | 944 | GenerateKeyedLoadReceiverCheck( |
| 945 | masm, receiver, r2, r3, Map::kHasIndexedInterceptor, &slow); |
| 946 | |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 947 | // Check the receiver's map to see if it has fast elements. |
| 948 | __ CheckFastElements(r2, r3, &check_number_dictionary); |
ricow@chromium.org | 0b9f850 | 2010-08-18 07:45:01 +0000 | [diff] [blame] | 949 | |
whesse@chromium.org | 2c186ca | 2010-06-16 11:32:39 +0000 | [diff] [blame] | 950 | GenerateFastArrayLoad( |
ricow@chromium.org | 0b9f850 | 2010-08-18 07:45:01 +0000 | [diff] [blame] | 951 | masm, receiver, key, r4, r3, r2, r0, NULL, &slow); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 952 | __ IncrementCounter(isolate->counters()->keyed_load_generic_smi(), 1, r2, r3); |
ager@chromium.org | b26c50a | 2010-03-26 09:27:16 +0000 | [diff] [blame] | 953 | __ Ret(); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 954 | |
ager@chromium.org | b26c50a | 2010-03-26 09:27:16 +0000 | [diff] [blame] | 955 | __ bind(&check_number_dictionary); |
danno@chromium.org | 4d3fe4e | 2011-03-10 10:14:28 +0000 | [diff] [blame] | 956 | __ ldr(r4, FieldMemOperand(receiver, JSObject::kElementsOffset)); |
| 957 | __ ldr(r3, FieldMemOperand(r4, JSObject::kMapOffset)); |
| 958 | |
ager@chromium.org | b26c50a | 2010-03-26 09:27:16 +0000 | [diff] [blame] | 959 | // Check whether the elements is a number dictionary. |
sgjesse@chromium.org | 720dc0b | 2010-05-10 09:25:39 +0000 | [diff] [blame] | 960 | // r0: key |
sgjesse@chromium.org | 720dc0b | 2010-05-10 09:25:39 +0000 | [diff] [blame] | 961 | // r3: elements map |
| 962 | // r4: elements |
ager@chromium.org | b26c50a | 2010-03-26 09:27:16 +0000 | [diff] [blame] | 963 | __ LoadRoot(ip, Heap::kHashTableMapRootIndex); |
| 964 | __ cmp(r3, ip); |
| 965 | __ b(ne, &slow); |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 966 | __ SmiUntag(r2, r0); |
sgjesse@chromium.org | 6db8871 | 2011-07-11 11:41:22 +0000 | [diff] [blame] | 967 | __ LoadFromNumberDictionary(&slow, r4, r0, r0, r2, r3, r5); |
ager@chromium.org | b26c50a | 2010-03-26 09:27:16 +0000 | [diff] [blame] | 968 | __ Ret(); |
| 969 | |
sgjesse@chromium.org | 720dc0b | 2010-05-10 09:25:39 +0000 | [diff] [blame] | 970 | // Slow case, key and receiver still in r0 and r1. |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 971 | __ bind(&slow); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 972 | __ IncrementCounter(isolate->counters()->keyed_load_generic_slow(), |
| 973 | 1, r2, r3); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 974 | GenerateRuntimeGetProperty(masm); |
sgjesse@chromium.org | 82dbbab | 2010-06-02 08:57:44 +0000 | [diff] [blame] | 975 | |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 976 | __ bind(&check_name); |
| 977 | GenerateKeyNameCheck(masm, key, r2, r3, &index_name, &slow); |
sgjesse@chromium.org | 82dbbab | 2010-06-02 08:57:44 +0000 | [diff] [blame] | 978 | |
fschneider@chromium.org | 40b9da3 | 2010-06-28 11:29:21 +0000 | [diff] [blame] | 979 | GenerateKeyedLoadReceiverCheck( |
| 980 | masm, receiver, r2, r3, Map::kHasNamedInterceptor, &slow); |
| 981 | |
sgjesse@chromium.org | 82dbbab | 2010-06-02 08:57:44 +0000 | [diff] [blame] | 982 | // If the receiver is a fast-case object, check the keyed lookup |
| 983 | // cache. Otherwise probe the dictionary. |
| 984 | __ ldr(r3, FieldMemOperand(r1, JSObject::kPropertiesOffset)); |
fschneider@chromium.org | 40b9da3 | 2010-06-28 11:29:21 +0000 | [diff] [blame] | 985 | __ ldr(r4, FieldMemOperand(r3, HeapObject::kMapOffset)); |
sgjesse@chromium.org | 82dbbab | 2010-06-02 08:57:44 +0000 | [diff] [blame] | 986 | __ LoadRoot(ip, Heap::kHashTableMapRootIndex); |
fschneider@chromium.org | 40b9da3 | 2010-06-28 11:29:21 +0000 | [diff] [blame] | 987 | __ cmp(r4, ip); |
sgjesse@chromium.org | 82dbbab | 2010-06-02 08:57:44 +0000 | [diff] [blame] | 988 | __ b(eq, &probe_dictionary); |
| 989 | |
| 990 | // Load the map of the receiver, compute the keyed lookup cache hash |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 991 | // based on 32 bits of the map pointer and the name hash. |
sgjesse@chromium.org | 82dbbab | 2010-06-02 08:57:44 +0000 | [diff] [blame] | 992 | __ ldr(r2, FieldMemOperand(r1, HeapObject::kMapOffset)); |
| 993 | __ mov(r3, Operand(r2, ASR, KeyedLookupCache::kMapHashShift)); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 994 | __ ldr(r4, FieldMemOperand(r0, Name::kHashFieldOffset)); |
| 995 | __ eor(r3, r3, Operand(r4, ASR, Name::kHashShift)); |
jkummerow@chromium.org | 05ed9dd | 2012-01-23 14:42:48 +0000 | [diff] [blame] | 996 | int mask = KeyedLookupCache::kCapacityMask & KeyedLookupCache::kHashMask; |
| 997 | __ And(r3, r3, Operand(mask)); |
sgjesse@chromium.org | 82dbbab | 2010-06-02 08:57:44 +0000 | [diff] [blame] | 998 | |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 999 | // Load the key (consisting of map and unique name) from the cache and |
sgjesse@chromium.org | 82dbbab | 2010-06-02 08:57:44 +0000 | [diff] [blame] | 1000 | // check for match. |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 1001 | Label load_in_object_property; |
| 1002 | static const int kEntriesPerBucket = KeyedLookupCache::kEntriesPerBucket; |
| 1003 | Label hit_on_nth_entry[kEntriesPerBucket]; |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1004 | ExternalReference cache_keys = |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1005 | ExternalReference::keyed_lookup_cache_keys(isolate); |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 1006 | |
sgjesse@chromium.org | 82dbbab | 2010-06-02 08:57:44 +0000 | [diff] [blame] | 1007 | __ mov(r4, Operand(cache_keys)); |
| 1008 | __ add(r4, r4, Operand(r3, LSL, kPointerSizeLog2 + 1)); |
jkummerow@chromium.org | 05ed9dd | 2012-01-23 14:42:48 +0000 | [diff] [blame] | 1009 | |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 1010 | for (int i = 0; i < kEntriesPerBucket - 1; i++) { |
| 1011 | Label try_next_entry; |
| 1012 | // Load map and move r4 to next entry. |
| 1013 | __ ldr(r5, MemOperand(r4, kPointerSize * 2, PostIndex)); |
| 1014 | __ cmp(r2, r5); |
| 1015 | __ b(ne, &try_next_entry); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1016 | __ ldr(r5, MemOperand(r4, -kPointerSize)); // Load name |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 1017 | __ cmp(r0, r5); |
| 1018 | __ b(eq, &hit_on_nth_entry[i]); |
| 1019 | __ bind(&try_next_entry); |
| 1020 | } |
| 1021 | |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1022 | // Last entry: Load map and move r4 to name. |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 1023 | __ ldr(r5, MemOperand(r4, kPointerSize, PostIndex)); |
sgjesse@chromium.org | 82dbbab | 2010-06-02 08:57:44 +0000 | [diff] [blame] | 1024 | __ cmp(r2, r5); |
| 1025 | __ b(ne, &slow); |
| 1026 | __ ldr(r5, MemOperand(r4)); |
| 1027 | __ cmp(r0, r5); |
| 1028 | __ b(ne, &slow); |
| 1029 | |
lrn@chromium.org | c4e51ac | 2010-08-09 09:47:21 +0000 | [diff] [blame] | 1030 | // Get field offset. |
sgjesse@chromium.org | 82dbbab | 2010-06-02 08:57:44 +0000 | [diff] [blame] | 1031 | // r0 : key |
| 1032 | // r1 : receiver |
| 1033 | // r2 : receiver's map |
| 1034 | // r3 : lookup cache index |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1035 | ExternalReference cache_field_offsets = |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1036 | ExternalReference::keyed_lookup_cache_field_offsets(isolate); |
jkummerow@chromium.org | 05ed9dd | 2012-01-23 14:42:48 +0000 | [diff] [blame] | 1037 | |
yangguo@chromium.org | 659ceec | 2012-01-26 07:37:54 +0000 | [diff] [blame] | 1038 | // Hit on nth entry. |
| 1039 | for (int i = kEntriesPerBucket - 1; i >= 0; i--) { |
| 1040 | __ bind(&hit_on_nth_entry[i]); |
| 1041 | __ mov(r4, Operand(cache_field_offsets)); |
| 1042 | if (i != 0) { |
| 1043 | __ add(r3, r3, Operand(i)); |
| 1044 | } |
| 1045 | __ ldr(r5, MemOperand(r4, r3, LSL, kPointerSizeLog2)); |
| 1046 | __ ldrb(r6, FieldMemOperand(r2, Map::kInObjectPropertiesOffset)); |
| 1047 | __ sub(r5, r5, r6, SetCC); |
| 1048 | __ b(ge, &property_array_property); |
| 1049 | if (i != 0) { |
| 1050 | __ jmp(&load_in_object_property); |
| 1051 | } |
| 1052 | } |
sgjesse@chromium.org | 82dbbab | 2010-06-02 08:57:44 +0000 | [diff] [blame] | 1053 | |
| 1054 | // Load in-object property. |
jkummerow@chromium.org | 05ed9dd | 2012-01-23 14:42:48 +0000 | [diff] [blame] | 1055 | __ bind(&load_in_object_property); |
sgjesse@chromium.org | 82dbbab | 2010-06-02 08:57:44 +0000 | [diff] [blame] | 1056 | __ ldrb(r6, FieldMemOperand(r2, Map::kInstanceSizeOffset)); |
| 1057 | __ add(r6, r6, r5); // Index from start of object. |
| 1058 | __ sub(r1, r1, Operand(kHeapObjectTag)); // Remove the heap tag. |
| 1059 | __ ldr(r0, MemOperand(r1, r6, LSL, kPointerSizeLog2)); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1060 | __ IncrementCounter(isolate->counters()->keyed_load_generic_lookup_cache(), |
| 1061 | 1, r2, r3); |
sgjesse@chromium.org | 82dbbab | 2010-06-02 08:57:44 +0000 | [diff] [blame] | 1062 | __ Ret(); |
| 1063 | |
lrn@chromium.org | c4e51ac | 2010-08-09 09:47:21 +0000 | [diff] [blame] | 1064 | // Load property array property. |
| 1065 | __ bind(&property_array_property); |
| 1066 | __ ldr(r1, FieldMemOperand(r1, JSObject::kPropertiesOffset)); |
| 1067 | __ add(r1, r1, Operand(FixedArray::kHeaderSize - kHeapObjectTag)); |
| 1068 | __ ldr(r0, MemOperand(r1, r5, LSL, kPointerSizeLog2)); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1069 | __ IncrementCounter(isolate->counters()->keyed_load_generic_lookup_cache(), |
| 1070 | 1, r2, r3); |
lrn@chromium.org | c4e51ac | 2010-08-09 09:47:21 +0000 | [diff] [blame] | 1071 | __ Ret(); |
| 1072 | |
sgjesse@chromium.org | 82dbbab | 2010-06-02 08:57:44 +0000 | [diff] [blame] | 1073 | // Do a quick inline probe of the receiver's dictionary, if it |
| 1074 | // exists. |
| 1075 | __ bind(&probe_dictionary); |
fschneider@chromium.org | 40b9da3 | 2010-06-28 11:29:21 +0000 | [diff] [blame] | 1076 | // r1: receiver |
| 1077 | // r0: key |
| 1078 | // r3: elements |
| 1079 | __ ldr(r2, FieldMemOperand(r1, HeapObject::kMapOffset)); |
| 1080 | __ ldrb(r2, FieldMemOperand(r2, Map::kInstanceTypeOffset)); |
| 1081 | GenerateGlobalInstanceTypeCheck(masm, r2, &slow); |
sgjesse@chromium.org | 82dbbab | 2010-06-02 08:57:44 +0000 | [diff] [blame] | 1082 | // Load the property to r0. |
fschneider@chromium.org | 40b9da3 | 2010-06-28 11:29:21 +0000 | [diff] [blame] | 1083 | GenerateDictionaryLoad(masm, &slow, r3, r0, r0, r2, r4); |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1084 | __ IncrementCounter( |
| 1085 | isolate->counters()->keyed_load_generic_symbol(), 1, r2, r3); |
sgjesse@chromium.org | 82dbbab | 2010-06-02 08:57:44 +0000 | [diff] [blame] | 1086 | __ Ret(); |
| 1087 | |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1088 | __ bind(&index_name); |
ricow@chromium.org | d236f4d | 2010-09-01 06:52:08 +0000 | [diff] [blame] | 1089 | __ IndexFromHash(r3, key); |
sgjesse@chromium.org | 82dbbab | 2010-06-02 08:57:44 +0000 | [diff] [blame] | 1090 | // Now jump to the place where smi keys are handled. |
| 1091 | __ jmp(&index_smi); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1092 | } |
| 1093 | |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1094 | |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 1095 | void KeyedLoadIC::GenerateString(MacroAssembler* masm) { |
| 1096 | // ---------- S t a t e -------------- |
| 1097 | // -- lr : return address |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 1098 | // -- r0 : key (index) |
sgjesse@chromium.org | 720dc0b | 2010-05-10 09:25:39 +0000 | [diff] [blame] | 1099 | // -- r1 : receiver |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1100 | // ----------------------------------- |
ager@chromium.org | ac091b7 | 2010-05-05 07:34:42 +0000 | [diff] [blame] | 1101 | Label miss; |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1102 | |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 1103 | Register receiver = r1; |
ager@chromium.org | ac091b7 | 2010-05-05 07:34:42 +0000 | [diff] [blame] | 1104 | Register index = r0; |
danno@chromium.org | c612e02 | 2011-11-10 11:38:15 +0000 | [diff] [blame] | 1105 | Register scratch = r3; |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 1106 | Register result = r0; |
ager@chromium.org | 357bf65 | 2010-04-12 11:30:10 +0000 | [diff] [blame] | 1107 | |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 1108 | StringCharAtGenerator char_at_generator(receiver, |
| 1109 | index, |
danno@chromium.org | c612e02 | 2011-11-10 11:38:15 +0000 | [diff] [blame] | 1110 | scratch, |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 1111 | result, |
| 1112 | &miss, // When not a string. |
| 1113 | &miss, // When not a number. |
fschneider@chromium.org | c20610a | 2010-09-22 09:44:58 +0000 | [diff] [blame] | 1114 | &miss, // When index out of range. |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 1115 | STRING_INDEX_IS_ARRAY_INDEX); |
| 1116 | char_at_generator.GenerateFast(masm); |
| 1117 | __ Ret(); |
ager@chromium.org | 357bf65 | 2010-04-12 11:30:10 +0000 | [diff] [blame] | 1118 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1119 | StubRuntimeCallHelper call_helper; |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 1120 | char_at_generator.GenerateSlow(masm, call_helper); |
ager@chromium.org | 357bf65 | 2010-04-12 11:30:10 +0000 | [diff] [blame] | 1121 | |
ager@chromium.org | 357bf65 | 2010-04-12 11:30:10 +0000 | [diff] [blame] | 1122 | __ bind(&miss); |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 1123 | GenerateMiss(masm, MISS); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 1124 | } |
| 1125 | |
| 1126 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1127 | void KeyedLoadIC::GenerateIndexedInterceptor(MacroAssembler* masm) { |
| 1128 | // ---------- S t a t e -------------- |
| 1129 | // -- lr : return address |
ager@chromium.org | ac091b7 | 2010-05-05 07:34:42 +0000 | [diff] [blame] | 1130 | // -- r0 : key |
sgjesse@chromium.org | 720dc0b | 2010-05-10 09:25:39 +0000 | [diff] [blame] | 1131 | // -- r1 : receiver |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1132 | // ----------------------------------- |
| 1133 | Label slow; |
| 1134 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1135 | // Check that the receiver isn't a smi. |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 1136 | __ JumpIfSmi(r1, &slow); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1137 | |
kmillikin@chromium.org | f05f291 | 2010-09-30 10:07:24 +0000 | [diff] [blame] | 1138 | // Check that the key is an array index, that is Uint32. |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 1139 | __ NonNegativeSmiTst(r0); |
kmillikin@chromium.org | f05f291 | 2010-09-30 10:07:24 +0000 | [diff] [blame] | 1140 | __ b(ne, &slow); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1141 | |
| 1142 | // Get the map of the receiver. |
| 1143 | __ ldr(r2, FieldMemOperand(r1, HeapObject::kMapOffset)); |
| 1144 | |
| 1145 | // Check that it has indexed interceptor and access checks |
| 1146 | // are not enabled for this object. |
| 1147 | __ ldrb(r3, FieldMemOperand(r2, Map::kBitFieldOffset)); |
| 1148 | __ and_(r3, r3, Operand(kSlowCaseBitFieldMask)); |
| 1149 | __ cmp(r3, Operand(1 << Map::kHasIndexedInterceptor)); |
| 1150 | __ b(ne, &slow); |
| 1151 | |
| 1152 | // Everything is fine, call runtime. |
lrn@chromium.org | c34f580 | 2010-04-28 12:53:43 +0000 | [diff] [blame] | 1153 | __ Push(r1, r0); // Receiver, key. |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1154 | |
| 1155 | // Perform tail call to the entry. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1156 | __ TailCallExternalReference( |
| 1157 | ExternalReference(IC_Utility(kKeyedLoadPropertyWithInterceptor), |
| 1158 | masm->isolate()), |
| 1159 | 2, |
| 1160 | 1); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1161 | |
| 1162 | __ bind(&slow); |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 1163 | GenerateMiss(masm, MISS); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1164 | } |
| 1165 | |
| 1166 | |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 1167 | void KeyedStoreIC::GenerateMiss(MacroAssembler* masm, ICMissMode miss_mode) { |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1168 | // ---------- S t a t e -------------- |
| 1169 | // -- r0 : value |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1170 | // -- r1 : key |
| 1171 | // -- r2 : receiver |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1172 | // -- lr : return address |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1173 | // ----------------------------------- |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1174 | |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1175 | // Push receiver, key and value for runtime call. |
| 1176 | __ Push(r2, r1, r0); |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1177 | |
jkummerow@chromium.org | 59297c7 | 2013-01-09 16:32:23 +0000 | [diff] [blame] | 1178 | ExternalReference ref = miss_mode == MISS_FORCE_GENERIC |
ager@chromium.org | ea91cc5 | 2011-05-23 06:06:11 +0000 | [diff] [blame] | 1179 | ? ExternalReference(IC_Utility(kKeyedStoreIC_MissForceGeneric), |
| 1180 | masm->isolate()) |
| 1181 | : ExternalReference(IC_Utility(kKeyedStoreIC_Miss), masm->isolate()); |
| 1182 | __ TailCallExternalReference(ref, 3, 1); |
| 1183 | } |
| 1184 | |
| 1185 | |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 1186 | void StoreIC::GenerateSlow(MacroAssembler* masm) { |
| 1187 | // ---------- S t a t e -------------- |
| 1188 | // -- r0 : value |
| 1189 | // -- r2 : key |
| 1190 | // -- r1 : receiver |
| 1191 | // -- lr : return address |
| 1192 | // ----------------------------------- |
| 1193 | |
| 1194 | // Push receiver, key and value for runtime call. |
| 1195 | __ Push(r1, r2, r0); |
| 1196 | |
| 1197 | // The slow case calls into the runtime to complete the store without causing |
| 1198 | // an IC miss that would otherwise cause a transition to the generic stub. |
| 1199 | ExternalReference ref = |
ulan@chromium.org | 906e2fb | 2013-05-14 08:14:38 +0000 | [diff] [blame] | 1200 | ExternalReference(IC_Utility(kStoreIC_Slow), masm->isolate()); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 1201 | __ TailCallExternalReference(ref, 3, 1); |
| 1202 | } |
| 1203 | |
| 1204 | |
ager@chromium.org | ea91cc5 | 2011-05-23 06:06:11 +0000 | [diff] [blame] | 1205 | void KeyedStoreIC::GenerateSlow(MacroAssembler* masm) { |
| 1206 | // ---------- S t a t e -------------- |
| 1207 | // -- r0 : value |
| 1208 | // -- r1 : key |
| 1209 | // -- r2 : receiver |
| 1210 | // -- lr : return address |
| 1211 | // ----------------------------------- |
| 1212 | |
| 1213 | // Push receiver, key and value for runtime call. |
| 1214 | __ Push(r2, r1, r0); |
| 1215 | |
| 1216 | // The slow case calls into the runtime to complete the store without causing |
| 1217 | // an IC miss that would otherwise cause a transition to the generic stub. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1218 | ExternalReference ref = |
ager@chromium.org | ea91cc5 | 2011-05-23 06:06:11 +0000 | [diff] [blame] | 1219 | ExternalReference(IC_Utility(kKeyedStoreIC_Slow), masm->isolate()); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 1220 | __ TailCallExternalReference(ref, 3, 1); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1221 | } |
| 1222 | |
| 1223 | |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 1224 | void KeyedStoreIC::GenerateRuntimeSetProperty(MacroAssembler* masm, |
| 1225 | StrictModeFlag strict_mode) { |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1226 | // ---------- S t a t e -------------- |
| 1227 | // -- r0 : value |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1228 | // -- r1 : key |
| 1229 | // -- r2 : receiver |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1230 | // -- lr : return address |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1231 | // ----------------------------------- |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1232 | |
| 1233 | // Push receiver, key and value for runtime call. |
| 1234 | __ Push(r2, r1, r0); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1235 | |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 1236 | __ mov(r1, Operand(Smi::FromInt(NONE))); // PropertyAttributes |
| 1237 | __ mov(r0, Operand(Smi::FromInt(strict_mode))); // Strict mode. |
| 1238 | __ Push(r1, r0); |
| 1239 | |
| 1240 | __ TailCallRuntime(Runtime::kSetProperty, 5, 1); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1241 | } |
| 1242 | |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1243 | |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1244 | static void KeyedStoreGenerateGenericHelper( |
| 1245 | MacroAssembler* masm, |
| 1246 | Label* fast_object, |
| 1247 | Label* fast_double, |
| 1248 | Label* slow, |
| 1249 | KeyedStoreCheckMap check_map, |
| 1250 | KeyedStoreIncrementLength increment_length, |
| 1251 | Register value, |
| 1252 | Register key, |
| 1253 | Register receiver, |
| 1254 | Register receiver_map, |
| 1255 | Register elements_map, |
| 1256 | Register elements) { |
| 1257 | Label transition_smi_elements; |
| 1258 | Label finish_object_store, non_double_value, transition_double_elements; |
| 1259 | Label fast_double_without_map_check; |
| 1260 | |
| 1261 | // Fast case: Do the store, could be either Object or double. |
| 1262 | __ bind(fast_object); |
| 1263 | Register scratch_value = r4; |
| 1264 | Register address = r5; |
| 1265 | if (check_map == kCheckMap) { |
| 1266 | __ ldr(elements_map, FieldMemOperand(elements, HeapObject::kMapOffset)); |
| 1267 | __ cmp(elements_map, |
| 1268 | Operand(masm->isolate()->factory()->fixed_array_map())); |
| 1269 | __ b(ne, fast_double); |
| 1270 | } |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 1271 | |
| 1272 | // HOLECHECK: guards "A[i] = V" |
| 1273 | // We have to go to the runtime if the current value is the hole because |
| 1274 | // there may be a callback on the element |
| 1275 | Label holecheck_passed1; |
| 1276 | __ add(address, elements, Operand(FixedArray::kHeaderSize - kHeapObjectTag)); |
| 1277 | __ ldr(scratch_value, |
| 1278 | MemOperand::PointerAddressFromSmiKey(address, key, PreIndex)); |
| 1279 | __ cmp(scratch_value, Operand(masm->isolate()->factory()->the_hole_value())); |
| 1280 | __ b(ne, &holecheck_passed1); |
| 1281 | __ JumpIfDictionaryInPrototypeChain(receiver, elements_map, scratch_value, |
| 1282 | slow); |
| 1283 | |
| 1284 | __ bind(&holecheck_passed1); |
| 1285 | |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1286 | // Smi stores don't require further checks. |
| 1287 | Label non_smi_value; |
| 1288 | __ JumpIfNotSmi(value, &non_smi_value); |
| 1289 | |
| 1290 | if (increment_length == kIncrementLength) { |
| 1291 | // Add 1 to receiver->length. |
| 1292 | __ add(scratch_value, key, Operand(Smi::FromInt(1))); |
| 1293 | __ str(scratch_value, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1294 | } |
| 1295 | // It's irrelevant whether array is smi-only or not when writing a smi. |
| 1296 | __ add(address, elements, Operand(FixedArray::kHeaderSize - kHeapObjectTag)); |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 1297 | __ str(value, MemOperand::PointerAddressFromSmiKey(address, key)); |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1298 | __ Ret(); |
| 1299 | |
| 1300 | __ bind(&non_smi_value); |
| 1301 | // Escape to elements kind transition case. |
| 1302 | __ CheckFastObjectElements(receiver_map, scratch_value, |
| 1303 | &transition_smi_elements); |
| 1304 | |
| 1305 | // Fast elements array, store the value to the elements backing store. |
| 1306 | __ bind(&finish_object_store); |
| 1307 | if (increment_length == kIncrementLength) { |
| 1308 | // Add 1 to receiver->length. |
| 1309 | __ add(scratch_value, key, Operand(Smi::FromInt(1))); |
| 1310 | __ str(scratch_value, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1311 | } |
| 1312 | __ add(address, elements, Operand(FixedArray::kHeaderSize - kHeapObjectTag)); |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 1313 | __ add(address, address, Operand::PointerOffsetFromSmiKey(key)); |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1314 | __ str(value, MemOperand(address)); |
| 1315 | // Update write barrier for the elements array address. |
| 1316 | __ mov(scratch_value, value); // Preserve the value which is returned. |
| 1317 | __ RecordWrite(elements, |
| 1318 | address, |
| 1319 | scratch_value, |
| 1320 | kLRHasNotBeenSaved, |
| 1321 | kDontSaveFPRegs, |
| 1322 | EMIT_REMEMBERED_SET, |
| 1323 | OMIT_SMI_CHECK); |
| 1324 | __ Ret(); |
| 1325 | |
| 1326 | __ bind(fast_double); |
| 1327 | if (check_map == kCheckMap) { |
| 1328 | // Check for fast double array case. If this fails, call through to the |
| 1329 | // runtime. |
| 1330 | __ CompareRoot(elements_map, Heap::kFixedDoubleArrayMapRootIndex); |
| 1331 | __ b(ne, slow); |
| 1332 | } |
machenbach@chromium.org | e8412be | 2013-11-08 10:23:52 +0000 | [diff] [blame] | 1333 | |
| 1334 | // HOLECHECK: guards "A[i] double hole?" |
| 1335 | // We have to see if the double version of the hole is present. If so |
| 1336 | // go to the runtime. |
| 1337 | __ add(address, elements, |
| 1338 | Operand((FixedDoubleArray::kHeaderSize + sizeof(kHoleNanLower32)) |
| 1339 | - kHeapObjectTag)); |
| 1340 | __ ldr(scratch_value, |
| 1341 | MemOperand(address, key, LSL, kPointerSizeLog2, PreIndex)); |
| 1342 | __ cmp(scratch_value, Operand(kHoleNanUpper32)); |
| 1343 | __ b(ne, &fast_double_without_map_check); |
| 1344 | __ JumpIfDictionaryInPrototypeChain(receiver, elements_map, scratch_value, |
| 1345 | slow); |
| 1346 | |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1347 | __ bind(&fast_double_without_map_check); |
jkummerow@chromium.org | fb732b1 | 2013-07-26 10:27:09 +0000 | [diff] [blame] | 1348 | __ StoreNumberToDoubleElements(value, key, elements, r3, d0, |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1349 | &transition_double_elements); |
| 1350 | if (increment_length == kIncrementLength) { |
| 1351 | // Add 1 to receiver->length. |
| 1352 | __ add(scratch_value, key, Operand(Smi::FromInt(1))); |
| 1353 | __ str(scratch_value, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1354 | } |
| 1355 | __ Ret(); |
| 1356 | |
| 1357 | __ bind(&transition_smi_elements); |
| 1358 | // Transition the array appropriately depending on the value type. |
| 1359 | __ ldr(r4, FieldMemOperand(value, HeapObject::kMapOffset)); |
| 1360 | __ CompareRoot(r4, Heap::kHeapNumberMapRootIndex); |
| 1361 | __ b(ne, &non_double_value); |
| 1362 | |
| 1363 | // Value is a double. Transition FAST_SMI_ELEMENTS -> |
| 1364 | // FAST_DOUBLE_ELEMENTS and complete the store. |
| 1365 | __ LoadTransitionedArrayMapConditional(FAST_SMI_ELEMENTS, |
| 1366 | FAST_DOUBLE_ELEMENTS, |
| 1367 | receiver_map, |
| 1368 | r4, |
| 1369 | slow); |
| 1370 | ASSERT(receiver_map.is(r3)); // Transition code expects map in r3 |
danno@chromium.org | bee5199 | 2013-07-10 14:57:15 +0000 | [diff] [blame] | 1371 | AllocationSiteMode mode = AllocationSite::GetMode(FAST_SMI_ELEMENTS, |
| 1372 | FAST_DOUBLE_ELEMENTS); |
yangguo@chromium.org | 46a2a51 | 2013-01-18 16:29:40 +0000 | [diff] [blame] | 1373 | ElementsTransitionGenerator::GenerateSmiToDouble(masm, mode, slow); |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1374 | __ ldr(elements, FieldMemOperand(receiver, JSObject::kElementsOffset)); |
| 1375 | __ jmp(&fast_double_without_map_check); |
| 1376 | |
| 1377 | __ bind(&non_double_value); |
| 1378 | // Value is not a double, FAST_SMI_ELEMENTS -> FAST_ELEMENTS |
| 1379 | __ LoadTransitionedArrayMapConditional(FAST_SMI_ELEMENTS, |
| 1380 | FAST_ELEMENTS, |
| 1381 | receiver_map, |
| 1382 | r4, |
| 1383 | slow); |
| 1384 | ASSERT(receiver_map.is(r3)); // Transition code expects map in r3 |
danno@chromium.org | bee5199 | 2013-07-10 14:57:15 +0000 | [diff] [blame] | 1385 | mode = AllocationSite::GetMode(FAST_SMI_ELEMENTS, FAST_ELEMENTS); |
yangguo@chromium.org | 46a2a51 | 2013-01-18 16:29:40 +0000 | [diff] [blame] | 1386 | ElementsTransitionGenerator::GenerateMapChangeElementsTransition(masm, mode, |
| 1387 | slow); |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1388 | __ ldr(elements, FieldMemOperand(receiver, JSObject::kElementsOffset)); |
| 1389 | __ jmp(&finish_object_store); |
| 1390 | |
| 1391 | __ bind(&transition_double_elements); |
| 1392 | // Elements are FAST_DOUBLE_ELEMENTS, but value is an Object that's not a |
| 1393 | // HeapNumber. Make sure that the receiver is a Array with FAST_ELEMENTS and |
| 1394 | // transition array from FAST_DOUBLE_ELEMENTS to FAST_ELEMENTS |
| 1395 | __ LoadTransitionedArrayMapConditional(FAST_DOUBLE_ELEMENTS, |
| 1396 | FAST_ELEMENTS, |
| 1397 | receiver_map, |
| 1398 | r4, |
| 1399 | slow); |
| 1400 | ASSERT(receiver_map.is(r3)); // Transition code expects map in r3 |
danno@chromium.org | bee5199 | 2013-07-10 14:57:15 +0000 | [diff] [blame] | 1401 | mode = AllocationSite::GetMode(FAST_DOUBLE_ELEMENTS, FAST_ELEMENTS); |
yangguo@chromium.org | 46a2a51 | 2013-01-18 16:29:40 +0000 | [diff] [blame] | 1402 | ElementsTransitionGenerator::GenerateDoubleToObject(masm, mode, slow); |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1403 | __ ldr(elements, FieldMemOperand(receiver, JSObject::kElementsOffset)); |
| 1404 | __ jmp(&finish_object_store); |
| 1405 | } |
| 1406 | |
| 1407 | |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 1408 | void KeyedStoreIC::GenerateGeneric(MacroAssembler* masm, |
| 1409 | StrictModeFlag strict_mode) { |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1410 | // ---------- S t a t e -------------- |
| 1411 | // -- r0 : value |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1412 | // -- r1 : key |
| 1413 | // -- r2 : receiver |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1414 | // -- lr : return address |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1415 | // ----------------------------------- |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1416 | Label slow, fast_object, fast_object_grow; |
| 1417 | Label fast_double, fast_double_grow; |
| 1418 | Label array, extra, check_if_double_array; |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1419 | |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1420 | // Register usage. |
| 1421 | Register value = r0; |
| 1422 | Register key = r1; |
| 1423 | Register receiver = r2; |
jkummerow@chromium.org | 1145ef8 | 2012-02-02 16:21:15 +0000 | [diff] [blame] | 1424 | Register receiver_map = r3; |
svenpanne@chromium.org | a8bb4d9 | 2011-10-10 13:20:40 +0000 | [diff] [blame] | 1425 | Register elements_map = r6; |
machenbach@chromium.org | 3d079fe | 2013-09-25 08:19:55 +0000 | [diff] [blame] | 1426 | Register elements = r9; // Elements array of the receiver. |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1427 | // r4 and r5 are used as general scratch registers. |
| 1428 | |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 1429 | // Check that the key is a smi. |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 1430 | __ JumpIfNotSmi(key, &slow); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 1431 | // Check that the object isn't a smi. |
whesse@chromium.org | 7b26015 | 2011-06-20 15:33:18 +0000 | [diff] [blame] | 1432 | __ JumpIfSmi(receiver, &slow); |
ager@chromium.org | 8bb6058 | 2008-12-11 12:02:20 +0000 | [diff] [blame] | 1433 | // Get the map of the object. |
svenpanne@chromium.org | a8bb4d9 | 2011-10-10 13:20:40 +0000 | [diff] [blame] | 1434 | __ ldr(receiver_map, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
machenbach@chromium.org | b5be0a9 | 2013-11-15 10:32:41 +0000 | [diff] [blame] | 1435 | // Check that the receiver does not require access checks and is not observed. |
| 1436 | // The generic stub does not perform map checks or handle observed objects. |
svenpanne@chromium.org | a8bb4d9 | 2011-10-10 13:20:40 +0000 | [diff] [blame] | 1437 | __ ldrb(ip, FieldMemOperand(receiver_map, Map::kBitFieldOffset)); |
machenbach@chromium.org | b5be0a9 | 2013-11-15 10:32:41 +0000 | [diff] [blame] | 1438 | __ tst(ip, Operand(1 << Map::kIsAccessCheckNeeded | 1 << Map::kIsObserved)); |
ager@chromium.org | 8bb6058 | 2008-12-11 12:02:20 +0000 | [diff] [blame] | 1439 | __ b(ne, &slow); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 1440 | // Check if the object is a JS array or not. |
svenpanne@chromium.org | a8bb4d9 | 2011-10-10 13:20:40 +0000 | [diff] [blame] | 1441 | __ ldrb(r4, FieldMemOperand(receiver_map, Map::kInstanceTypeOffset)); |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1442 | __ cmp(r4, Operand(JS_ARRAY_TYPE)); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 1443 | __ b(eq, &array); |
ricow@chromium.org | d2be901 | 2011-06-01 06:00:58 +0000 | [diff] [blame] | 1444 | // Check that the object is some kind of JSObject. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1445 | __ cmp(r4, Operand(FIRST_JS_OBJECT_TYPE)); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 1446 | __ b(lt, &slow); |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1447 | |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 1448 | // Object case: Check key against length in the elements array. |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1449 | __ ldr(elements, FieldMemOperand(receiver, JSObject::kElementsOffset)); |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 1450 | // Check array bounds. Both the key and the length of FixedArray are smis. |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1451 | __ ldr(ip, FieldMemOperand(elements, FixedArray::kLengthOffset)); |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 1452 | __ cmp(key, Operand(ip)); |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1453 | __ b(lo, &fast_object); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 1454 | |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1455 | // Slow case, handle jump to runtime. |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 1456 | __ bind(&slow); |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1457 | // Entry registers are intact. |
| 1458 | // r0: value. |
| 1459 | // r1: key. |
| 1460 | // r2: receiver. |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 1461 | GenerateRuntimeSetProperty(masm, strict_mode); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 1462 | |
| 1463 | // Extra capacity case: Check if there is extra capacity to |
| 1464 | // perform the store and update the length. Used for adding one |
| 1465 | // element to the array by writing to array[array.length]. |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 1466 | __ bind(&extra); |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1467 | // Condition code from comparing key and array length is still available. |
| 1468 | __ b(ne, &slow); // Only support writing to writing to array[array.length]. |
| 1469 | // Check for room in the elements backing store. |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 1470 | // Both the key and the length of FixedArray are smis. |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1471 | __ ldr(ip, FieldMemOperand(elements, FixedArray::kLengthOffset)); |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 1472 | __ cmp(key, Operand(ip)); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 1473 | __ b(hs, &slow); |
svenpanne@chromium.org | a8bb4d9 | 2011-10-10 13:20:40 +0000 | [diff] [blame] | 1474 | __ ldr(elements_map, FieldMemOperand(elements, HeapObject::kMapOffset)); |
| 1475 | __ cmp(elements_map, |
| 1476 | Operand(masm->isolate()->factory()->fixed_array_map())); |
| 1477 | __ b(ne, &check_if_double_array); |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1478 | __ jmp(&fast_object_grow); |
svenpanne@chromium.org | a8bb4d9 | 2011-10-10 13:20:40 +0000 | [diff] [blame] | 1479 | |
| 1480 | __ bind(&check_if_double_array); |
| 1481 | __ cmp(elements_map, |
| 1482 | Operand(masm->isolate()->factory()->fixed_double_array_map())); |
| 1483 | __ b(ne, &slow); |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1484 | __ jmp(&fast_double_grow); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 1485 | |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 1486 | // Array case: Get the length and the elements array from the JS |
ricow@chromium.org | 0b9f850 | 2010-08-18 07:45:01 +0000 | [diff] [blame] | 1487 | // array. Check that the array is in fast mode (and writable); if it |
| 1488 | // is the length is always a smi. |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 1489 | __ bind(&array); |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1490 | __ ldr(elements, FieldMemOperand(receiver, JSObject::kElementsOffset)); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 1491 | |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1492 | // Check the key against the length in the array. |
| 1493 | __ ldr(ip, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1494 | __ cmp(key, Operand(ip)); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 1495 | __ b(hs, &extra); |
ager@chromium.org | a74f0da | 2008-12-03 16:05:52 +0000 | [diff] [blame] | 1496 | |
verwaest@chromium.org | 33e09c8 | 2012-10-10 17:07:22 +0000 | [diff] [blame] | 1497 | KeyedStoreGenerateGenericHelper(masm, &fast_object, &fast_double, |
| 1498 | &slow, kCheckMap, kDontIncrementLength, |
| 1499 | value, key, receiver, receiver_map, |
| 1500 | elements_map, elements); |
| 1501 | KeyedStoreGenerateGenericHelper(masm, &fast_object_grow, &fast_double_grow, |
| 1502 | &slow, kDontCheckMap, kIncrementLength, |
| 1503 | value, key, receiver, receiver_map, |
| 1504 | elements_map, elements); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1505 | } |
| 1506 | |
ager@chromium.org | 3bf7b91 | 2008-11-17 09:09:45 +0000 | [diff] [blame] | 1507 | |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 1508 | void StoreIC::GenerateMegamorphic(MacroAssembler* masm, |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 1509 | StrictModeFlag strict_mode) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1510 | // ----------- S t a t e ------------- |
| 1511 | // -- r0 : value |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1512 | // -- r1 : receiver |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1513 | // -- r2 : name |
| 1514 | // -- lr : return address |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1515 | // ----------------------------------- |
| 1516 | |
| 1517 | // Get the receiver from the stack and probe the stub cache. |
danno@chromium.org | bee5199 | 2013-07-10 14:57:15 +0000 | [diff] [blame] | 1518 | Code::Flags flags = Code::ComputeFlags( |
jkummerow@chromium.org | 32aa03c | 2013-10-01 08:21:50 +0000 | [diff] [blame] | 1519 | Code::HANDLER, MONOMORPHIC, strict_mode, |
danno@chromium.org | bee5199 | 2013-07-10 14:57:15 +0000 | [diff] [blame] | 1520 | Code::NORMAL, Code::STORE_IC); |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1521 | |
dslomov@chromium.org | e97852d | 2013-09-12 09:02:59 +0000 | [diff] [blame] | 1522 | masm->isolate()->stub_cache()->GenerateProbe( |
ulan@chromium.org | 812308e | 2012-02-29 15:58:45 +0000 | [diff] [blame] | 1523 | masm, flags, r1, r2, r3, r4, r5, r6); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1524 | |
| 1525 | // Cache miss: Jump to runtime. |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1526 | GenerateMiss(masm); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1527 | } |
| 1528 | |
| 1529 | |
sgjesse@chromium.org | b302e56 | 2010-02-03 11:26:59 +0000 | [diff] [blame] | 1530 | void StoreIC::GenerateMiss(MacroAssembler* masm) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1531 | // ----------- S t a t e ------------- |
| 1532 | // -- r0 : value |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1533 | // -- r1 : receiver |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1534 | // -- r2 : name |
| 1535 | // -- lr : return address |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1536 | // ----------------------------------- |
| 1537 | |
lrn@chromium.org | c34f580 | 2010-04-28 12:53:43 +0000 | [diff] [blame] | 1538 | __ Push(r1, r2, r0); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1539 | |
mads.s.ager | 31e7138 | 2008-08-13 09:32:07 +0000 | [diff] [blame] | 1540 | // Perform tail call to the entry. |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 1541 | ExternalReference ref = |
| 1542 | ExternalReference(IC_Utility(kStoreIC_Miss), masm->isolate()); |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 1543 | __ TailCallExternalReference(ref, 3, 1); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1544 | } |
| 1545 | |
| 1546 | |
kmillikin@chromium.org | 69ea396 | 2010-07-05 11:01:40 +0000 | [diff] [blame] | 1547 | void StoreIC::GenerateNormal(MacroAssembler* masm) { |
| 1548 | // ----------- S t a t e ------------- |
| 1549 | // -- r0 : value |
| 1550 | // -- r1 : receiver |
| 1551 | // -- r2 : name |
| 1552 | // -- lr : return address |
| 1553 | // ----------------------------------- |
| 1554 | Label miss; |
| 1555 | |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 1556 | GenerateNameDictionaryReceiverCheck(masm, r1, r3, r4, r5, &miss); |
kmillikin@chromium.org | 69ea396 | 2010-07-05 11:01:40 +0000 | [diff] [blame] | 1557 | |
| 1558 | GenerateDictionaryStore(masm, &miss, r3, r2, r0, r4, r5); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1559 | Counters* counters = masm->isolate()->counters(); |
| 1560 | __ IncrementCounter(counters->store_normal_hit(), |
| 1561 | 1, r4, r5); |
kmillikin@chromium.org | 69ea396 | 2010-07-05 11:01:40 +0000 | [diff] [blame] | 1562 | __ Ret(); |
| 1563 | |
| 1564 | __ bind(&miss); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 1565 | __ IncrementCounter(counters->store_normal_miss(), 1, r4, r5); |
kmillikin@chromium.org | 69ea396 | 2010-07-05 11:01:40 +0000 | [diff] [blame] | 1566 | GenerateMiss(masm); |
| 1567 | } |
| 1568 | |
| 1569 | |
dslomov@chromium.org | b752d40 | 2013-06-18 11:54:54 +0000 | [diff] [blame] | 1570 | void StoreIC::GenerateRuntimeSetProperty(MacroAssembler* masm, |
| 1571 | StrictModeFlag strict_mode) { |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1572 | // ----------- S t a t e ------------- |
| 1573 | // -- r0 : value |
| 1574 | // -- r1 : receiver |
| 1575 | // -- r2 : name |
| 1576 | // -- lr : return address |
| 1577 | // ----------------------------------- |
| 1578 | |
| 1579 | __ Push(r1, r2, r0); |
| 1580 | |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 1581 | __ mov(r1, Operand(Smi::FromInt(NONE))); // PropertyAttributes |
| 1582 | __ mov(r0, Operand(Smi::FromInt(strict_mode))); |
| 1583 | __ Push(r1, r0); |
| 1584 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1585 | // Do tail-call to runtime routine. |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 1586 | __ TailCallRuntime(Runtime::kSetProperty, 5, 1); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1587 | } |
| 1588 | |
| 1589 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1590 | #undef __ |
| 1591 | |
| 1592 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1593 | Condition CompareIC::ComputeCondition(Token::Value op) { |
| 1594 | switch (op) { |
| 1595 | case Token::EQ_STRICT: |
| 1596 | case Token::EQ: |
| 1597 | return eq; |
| 1598 | case Token::LT: |
| 1599 | return lt; |
| 1600 | case Token::GT: |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1601 | return gt; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1602 | case Token::LTE: |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1603 | return le; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1604 | case Token::GTE: |
| 1605 | return ge; |
| 1606 | default: |
| 1607 | UNREACHABLE(); |
ager@chromium.org | 378b34e | 2011-01-28 08:04:38 +0000 | [diff] [blame] | 1608 | return kNoCondition; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1609 | } |
| 1610 | } |
| 1611 | |
| 1612 | |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 1613 | bool CompareIC::HasInlinedSmiCode(Address address) { |
| 1614 | // The address of the instruction following the call. |
| 1615 | Address cmp_instruction_address = |
| 1616 | Assembler::return_address_from_call_start(address); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1617 | |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 1618 | // If the instruction following the call is not a cmp rx, #yyy, nothing |
| 1619 | // was inlined. |
| 1620 | Instr instr = Assembler::instr_at(cmp_instruction_address); |
| 1621 | return Assembler::IsCmpImmediate(instr); |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 1622 | } |
| 1623 | |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 1624 | |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 1625 | void PatchInlinedSmiCode(Address address, InlinedSmiCheck check) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 1626 | Address cmp_instruction_address = |
rossberg@chromium.org | 89e18f5 | 2012-10-22 13:09:53 +0000 | [diff] [blame] | 1627 | Assembler::return_address_from_call_start(address); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 1628 | |
| 1629 | // If the instruction following the call is not a cmp rx, #yyy, nothing |
| 1630 | // was inlined. |
| 1631 | Instr instr = Assembler::instr_at(cmp_instruction_address); |
| 1632 | if (!Assembler::IsCmpImmediate(instr)) { |
| 1633 | return; |
| 1634 | } |
| 1635 | |
| 1636 | // The delta to the start of the map check instruction and the |
| 1637 | // condition code uses at the patched jump. |
| 1638 | int delta = Assembler::GetCmpImmediateRawImmediate(instr); |
| 1639 | delta += |
| 1640 | Assembler::GetCmpImmediateRegister(instr).code() * kOff12Mask; |
| 1641 | // If the delta is 0 the instruction is cmp r0, #0 which also signals that |
| 1642 | // nothing was inlined. |
| 1643 | if (delta == 0) { |
| 1644 | return; |
| 1645 | } |
| 1646 | |
| 1647 | #ifdef DEBUG |
| 1648 | if (FLAG_trace_ic) { |
| 1649 | PrintF("[ patching ic at %p, cmp=%p, delta=%d\n", |
| 1650 | address, cmp_instruction_address, delta); |
| 1651 | } |
| 1652 | #endif |
| 1653 | |
| 1654 | Address patch_address = |
| 1655 | cmp_instruction_address - delta * Instruction::kInstrSize; |
| 1656 | Instr instr_at_patch = Assembler::instr_at(patch_address); |
| 1657 | Instr branch_instr = |
| 1658 | Assembler::instr_at(patch_address + Instruction::kInstrSize); |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 1659 | // This is patching a conditional "jump if not smi/jump if smi" site. |
| 1660 | // Enabling by changing from |
| 1661 | // cmp rx, rx |
| 1662 | // b eq/ne, <target> |
| 1663 | // to |
| 1664 | // tst rx, #kSmiTagMask |
| 1665 | // b ne/eq, <target> |
| 1666 | // and vice-versa to be disabled again. |
| 1667 | CodePatcher patcher(patch_address, 2); |
| 1668 | Register reg = Assembler::GetRn(instr_at_patch); |
| 1669 | if (check == ENABLE_INLINED_SMI_CHECK) { |
| 1670 | ASSERT(Assembler::IsCmpRegister(instr_at_patch)); |
| 1671 | ASSERT_EQ(Assembler::GetRn(instr_at_patch).code(), |
| 1672 | Assembler::GetRm(instr_at_patch).code()); |
| 1673 | patcher.masm()->tst(reg, Operand(kSmiTagMask)); |
| 1674 | } else { |
| 1675 | ASSERT(check == DISABLE_INLINED_SMI_CHECK); |
| 1676 | ASSERT(Assembler::IsTstImmediate(instr_at_patch)); |
| 1677 | patcher.masm()->cmp(reg, reg); |
| 1678 | } |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 1679 | ASSERT(Assembler::IsBranch(branch_instr)); |
| 1680 | if (Assembler::GetCondition(branch_instr) == eq) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 1681 | patcher.EmitCondition(ne); |
| 1682 | } else { |
| 1683 | ASSERT(Assembler::GetCondition(branch_instr) == ne); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 1684 | patcher.EmitCondition(eq); |
| 1685 | } |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 1686 | } |
| 1687 | |
| 1688 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 1689 | } } // namespace v8::internal |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 1690 | |
| 1691 | #endif // V8_TARGET_ARCH_ARM |