Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1 | // Copyright 2014 the V8 project authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #include "src/compiler/access-builder.h" |
| 6 | #include "src/types-inl.h" |
| 7 | |
| 8 | namespace v8 { |
| 9 | namespace internal { |
| 10 | namespace compiler { |
| 11 | |
| 12 | // static |
| 13 | FieldAccess AccessBuilder::ForMap() { |
| 14 | return {kTaggedBase, HeapObject::kMapOffset, Handle<Name>(), Type::Any(), |
| 15 | kMachAnyTagged}; |
| 16 | } |
| 17 | |
| 18 | |
| 19 | // static |
| 20 | FieldAccess AccessBuilder::ForJSObjectProperties() { |
| 21 | return {kTaggedBase, JSObject::kPropertiesOffset, Handle<Name>(), Type::Any(), |
| 22 | kMachAnyTagged}; |
| 23 | } |
| 24 | |
| 25 | |
| 26 | // static |
| 27 | FieldAccess AccessBuilder::ForJSObjectElements() { |
| 28 | return {kTaggedBase, JSObject::kElementsOffset, Handle<Name>(), |
| 29 | Type::Internal(), kMachAnyTagged}; |
| 30 | } |
| 31 | |
| 32 | |
| 33 | // static |
| 34 | FieldAccess AccessBuilder::ForJSFunctionContext() { |
| 35 | return {kTaggedBase, JSFunction::kContextOffset, Handle<Name>(), |
| 36 | Type::Internal(), kMachAnyTagged}; |
| 37 | } |
| 38 | |
| 39 | |
| 40 | // static |
| 41 | FieldAccess AccessBuilder::ForJSArrayBufferBackingStore() { |
| 42 | return {kTaggedBase, JSArrayBuffer::kBackingStoreOffset, Handle<Name>(), |
| 43 | Type::UntaggedPtr(), kMachPtr}; |
| 44 | } |
| 45 | |
| 46 | |
| 47 | // static |
| 48 | FieldAccess AccessBuilder::ForExternalArrayPointer() { |
| 49 | return {kTaggedBase, ExternalArray::kExternalPointerOffset, Handle<Name>(), |
| 50 | Type::UntaggedPtr(), kMachPtr}; |
| 51 | } |
| 52 | |
| 53 | |
| 54 | // static |
| 55 | ElementAccess AccessBuilder::ForFixedArrayElement() { |
| 56 | return {kTaggedBase, FixedArray::kHeaderSize, Type::Any(), kMachAnyTagged}; |
| 57 | } |
| 58 | |
| 59 | |
| 60 | // static |
| 61 | ElementAccess AccessBuilder::ForBackingStoreElement(MachineType rep) { |
| 62 | return {kUntaggedBase, kNonHeapObjectHeaderSize - kHeapObjectTag, Type::Any(), |
| 63 | rep}; |
| 64 | } |
| 65 | |
| 66 | |
| 67 | // static |
| 68 | ElementAccess AccessBuilder::ForTypedArrayElement(ExternalArrayType type, |
| 69 | bool is_external) { |
| 70 | BaseTaggedness taggedness = is_external ? kUntaggedBase : kTaggedBase; |
| 71 | int header_size = is_external ? 0 : FixedTypedArrayBase::kDataOffset; |
| 72 | switch (type) { |
| 73 | case kExternalInt8Array: |
| 74 | return {taggedness, header_size, Type::Signed32(), kMachInt8}; |
| 75 | case kExternalUint8Array: |
| 76 | case kExternalUint8ClampedArray: |
| 77 | return {taggedness, header_size, Type::Unsigned32(), kMachUint8}; |
| 78 | case kExternalInt16Array: |
| 79 | return {taggedness, header_size, Type::Signed32(), kMachInt16}; |
| 80 | case kExternalUint16Array: |
| 81 | return {taggedness, header_size, Type::Unsigned32(), kMachUint16}; |
| 82 | case kExternalInt32Array: |
| 83 | return {taggedness, header_size, Type::Signed32(), kMachInt32}; |
| 84 | case kExternalUint32Array: |
| 85 | return {taggedness, header_size, Type::Unsigned32(), kMachUint32}; |
| 86 | case kExternalFloat32Array: |
| 87 | return {taggedness, header_size, Type::Number(), kRepFloat32}; |
| 88 | case kExternalFloat64Array: |
| 89 | return {taggedness, header_size, Type::Number(), kRepFloat64}; |
| 90 | } |
| 91 | UNREACHABLE(); |
| 92 | return {kUntaggedBase, 0, Type::None(), kMachNone}; |
| 93 | } |
| 94 | |
| 95 | } // namespace compiler |
| 96 | } // namespace internal |
| 97 | } // namespace v8 |