Upgrade to 3.29
Update V8 to 3.29.88.17 and update makefiles to support building on
all the relevant platforms.
Bug: 17370214
Change-Id: Ia3407c157fd8d72a93e23d8318ccaf6ecf77fa4e
diff --git a/src/compiler/simplified-operator.h b/src/compiler/simplified-operator.h
new file mode 100644
index 0000000..32f0e8b
--- /dev/null
+++ b/src/compiler/simplified-operator.h
@@ -0,0 +1,152 @@
+// Copyright 2014 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef V8_COMPILER_SIMPLIFIED_OPERATOR_H_
+#define V8_COMPILER_SIMPLIFIED_OPERATOR_H_
+
+#include "src/compiler/machine-type.h"
+#include "src/handles.h"
+
+namespace v8 {
+namespace internal {
+
+// Forward declarations.
+template <class>
+class TypeImpl;
+struct ZoneTypeConfig;
+typedef TypeImpl<ZoneTypeConfig> Type;
+class Zone;
+
+
+namespace compiler {
+
+// Forward declarations.
+class Operator;
+struct SimplifiedOperatorBuilderImpl;
+
+
+enum BaseTaggedness { kUntaggedBase, kTaggedBase };
+
+OStream& operator<<(OStream&, BaseTaggedness);
+
+// An access descriptor for loads/stores of fixed structures like field
+// accesses of heap objects. Accesses from either tagged or untagged base
+// pointers are supported; untagging is done automatically during lowering.
+struct FieldAccess {
+ BaseTaggedness base_is_tagged; // specifies if the base pointer is tagged.
+ int offset; // offset of the field, without tag.
+ Handle<Name> name; // debugging only.
+ Type* type; // type of the field.
+ MachineType machine_type; // machine type of the field.
+
+ int tag() const { return base_is_tagged == kTaggedBase ? kHeapObjectTag : 0; }
+};
+
+
+// An access descriptor for loads/stores of indexed structures like characters
+// in strings or off-heap backing stores. Accesses from either tagged or
+// untagged base pointers are supported; untagging is done automatically during
+// lowering.
+struct ElementAccess {
+ BaseTaggedness base_is_tagged; // specifies if the base pointer is tagged.
+ int header_size; // size of the header, without tag.
+ Type* type; // type of the element.
+ MachineType machine_type; // machine type of the element.
+
+ int tag() const { return base_is_tagged == kTaggedBase ? kHeapObjectTag : 0; }
+};
+
+bool operator==(ElementAccess const& lhs, ElementAccess const& rhs);
+bool operator!=(ElementAccess const& lhs, ElementAccess const& rhs);
+
+OStream& operator<<(OStream&, ElementAccess const&);
+
+
+// If the accessed object is not a heap object, add this to the header_size.
+static const int kNonHeapObjectHeaderSize = kHeapObjectTag;
+
+
+const FieldAccess& FieldAccessOf(const Operator* op) WARN_UNUSED_RESULT;
+const ElementAccess& ElementAccessOf(const Operator* op) WARN_UNUSED_RESULT;
+
+
+// Interface for building simplified operators, which represent the
+// medium-level operations of V8, including adding numbers, allocating objects,
+// indexing into objects and arrays, etc.
+// All operators are typed but many are representation independent.
+
+// Number values from JS can be in one of these representations:
+// - Tagged: word-sized integer that is either
+// - a signed small integer (31 or 32 bits plus a tag)
+// - a tagged pointer to a HeapNumber object that has a float64 field
+// - Int32: an untagged signed 32-bit integer
+// - Uint32: an untagged unsigned 32-bit integer
+// - Float64: an untagged float64
+
+// Additional representations for intermediate code or non-JS code:
+// - Int64: an untagged signed 64-bit integer
+// - Uint64: an untagged unsigned 64-bit integer
+// - Float32: an untagged float32
+
+// Boolean values can be:
+// - Bool: a tagged pointer to either the canonical JS #false or
+// the canonical JS #true object
+// - Bit: an untagged integer 0 or 1, but word-sized
+class SimplifiedOperatorBuilder FINAL {
+ public:
+ explicit SimplifiedOperatorBuilder(Zone* zone);
+
+ const Operator* BooleanNot();
+ const Operator* BooleanToNumber();
+
+ const Operator* NumberEqual();
+ const Operator* NumberLessThan();
+ const Operator* NumberLessThanOrEqual();
+ const Operator* NumberAdd();
+ const Operator* NumberSubtract();
+ const Operator* NumberMultiply();
+ const Operator* NumberDivide();
+ const Operator* NumberModulus();
+ const Operator* NumberToInt32();
+ const Operator* NumberToUint32();
+
+ const Operator* ReferenceEqual(Type* type);
+
+ const Operator* StringEqual();
+ const Operator* StringLessThan();
+ const Operator* StringLessThanOrEqual();
+ const Operator* StringAdd();
+
+ const Operator* ChangeTaggedToInt32();
+ const Operator* ChangeTaggedToUint32();
+ const Operator* ChangeTaggedToFloat64();
+ const Operator* ChangeInt32ToTagged();
+ const Operator* ChangeUint32ToTagged();
+ const Operator* ChangeFloat64ToTagged();
+ const Operator* ChangeBoolToBit();
+ const Operator* ChangeBitToBool();
+
+ const Operator* LoadField(const FieldAccess&);
+ const Operator* StoreField(const FieldAccess&);
+
+ // load-element [base + index], length
+ const Operator* LoadElement(ElementAccess const&);
+
+ // store-element [base + index], length, value
+ const Operator* StoreElement(ElementAccess const&);
+
+ private:
+ Zone* zone() const { return zone_; }
+
+ const SimplifiedOperatorBuilderImpl& impl_;
+ Zone* const zone_;
+
+ DISALLOW_COPY_AND_ASSIGN(SimplifiedOperatorBuilder);
+};
+
+} // namespace compiler
+} // namespace internal
+} // namespace v8
+
+#endif // V8_COMPILER_SIMPLIFIED_OPERATOR_H_