OLD | NEW |
1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
(...skipping 3272 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
3283 __ B(eq, &done); | 3283 __ B(eq, &done); |
3284 | 3284 |
3285 // If we came here, we need to see if we are the array function. | 3285 // If we came here, we need to see if we are the array function. |
3286 // If we didn't have a matching function, and we didn't find the megamorph | 3286 // If we didn't have a matching function, and we didn't find the megamorph |
3287 // sentinel, then we have in the slot either some other function or an | 3287 // sentinel, then we have in the slot either some other function or an |
3288 // AllocationSite. Do a map check on the object in ecx. | 3288 // AllocationSite. Do a map check on the object in ecx. |
3289 __ Ldr(x5, FieldMemOperand(x4, AllocationSite::kMapOffset)); | 3289 __ Ldr(x5, FieldMemOperand(x4, AllocationSite::kMapOffset)); |
3290 __ JumpIfNotRoot(x5, Heap::kAllocationSiteMapRootIndex, &miss); | 3290 __ JumpIfNotRoot(x5, Heap::kAllocationSiteMapRootIndex, &miss); |
3291 | 3291 |
3292 // Make sure the function is the Array() function | 3292 // Make sure the function is the Array() function |
3293 __ LoadArrayFunction(x4); | 3293 __ LoadGlobalFunction(Context::ARRAY_FUNCTION_INDEX, x4); |
3294 __ Cmp(x1, x4); | 3294 __ Cmp(x1, x4); |
3295 __ B(ne, &megamorphic); | 3295 __ B(ne, &megamorphic); |
3296 __ B(&done); | 3296 __ B(&done); |
3297 | 3297 |
3298 __ Bind(&miss); | 3298 __ Bind(&miss); |
3299 | 3299 |
3300 // A monomorphic miss (i.e, here the cache is not uninitialized) goes | 3300 // A monomorphic miss (i.e, here the cache is not uninitialized) goes |
3301 // megamorphic. | 3301 // megamorphic. |
3302 __ JumpIfRoot(x4, Heap::kTheHoleValueRootIndex, &initialize); | 3302 __ JumpIfRoot(x4, Heap::kTheHoleValueRootIndex, &initialize); |
3303 // MegamorphicSentinel is an immortal immovable object (undefined) so no | 3303 // MegamorphicSentinel is an immortal immovable object (undefined) so no |
3304 // write-barrier is needed. | 3304 // write-barrier is needed. |
3305 __ Bind(&megamorphic); | 3305 __ Bind(&megamorphic); |
3306 __ Add(x4, x2, Operand::UntagSmiAndScale(x3, kPointerSizeLog2)); | 3306 __ Add(x4, x2, Operand::UntagSmiAndScale(x3, kPointerSizeLog2)); |
3307 __ LoadRoot(x10, Heap::kUndefinedValueRootIndex); | 3307 __ LoadRoot(x10, Heap::kUndefinedValueRootIndex); |
3308 __ Str(x10, FieldMemOperand(x4, FixedArray::kHeaderSize)); | 3308 __ Str(x10, FieldMemOperand(x4, FixedArray::kHeaderSize)); |
3309 __ B(&done); | 3309 __ B(&done); |
3310 | 3310 |
3311 // An uninitialized cache is patched with the function or sentinel to | 3311 // An uninitialized cache is patched with the function or sentinel to |
3312 // indicate the ElementsKind if function is the Array constructor. | 3312 // indicate the ElementsKind if function is the Array constructor. |
3313 __ Bind(&initialize); | 3313 __ Bind(&initialize); |
3314 // Make sure the function is the Array() function | 3314 // Make sure the function is the Array() function |
3315 __ LoadArrayFunction(x4); | 3315 __ LoadGlobalFunction(Context::ARRAY_FUNCTION_INDEX, x4); |
3316 __ Cmp(x1, x4); | 3316 __ Cmp(x1, x4); |
3317 __ B(ne, ¬_array_function); | 3317 __ B(ne, ¬_array_function); |
3318 | 3318 |
3319 // The target function is the Array constructor, | 3319 // The target function is the Array constructor, |
3320 // Create an AllocationSite if we don't already have it, store it in the slot. | 3320 // Create an AllocationSite if we don't already have it, store it in the slot. |
3321 { | 3321 { |
3322 FrameScope scope(masm, StackFrame::INTERNAL); | 3322 FrameScope scope(masm, StackFrame::INTERNAL); |
3323 CreateAllocationSiteStub create_stub; | 3323 CreateAllocationSiteStub create_stub; |
3324 | 3324 |
3325 // Arguments register must be smi-tagged to call out. | 3325 // Arguments register must be smi-tagged to call out. |
(...skipping 2470 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
5796 MemOperand(fp, 6 * kPointerSize), | 5796 MemOperand(fp, 6 * kPointerSize), |
5797 NULL); | 5797 NULL); |
5798 } | 5798 } |
5799 | 5799 |
5800 | 5800 |
5801 #undef __ | 5801 #undef __ |
5802 | 5802 |
5803 } } // namespace v8::internal | 5803 } } // namespace v8::internal |
5804 | 5804 |
5805 #endif // V8_TARGET_ARCH_A64 | 5805 #endif // V8_TARGET_ARCH_A64 |
OLD | NEW |