BASELINE: Update Chromium to 52.0.2743.76 and Ninja to 1.7.1

Change-Id: I382f51b959689505a60f8b707255ecb344f7d8b4
Reviewed-by: Michael Brüning <michael.bruning@qt.io>

1 files changed, 264 insertions, 0 deletions

diff --git a/chromium/v8/src/code-stub-assembler.h b/chromium/v8/src/code-stub-assembler.h
new file mode 100644
index 00000000000..891fd244eb7
--- /dev/null
+++ b/chromium/v8/src/code-stub-assembler.h
@@ -0,0 +1,264 @@
+// Copyright 2016 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_CODE_STUB_ASSEMBLER_H_
+#define V8_CODE_STUB_ASSEMBLER_H_
+
+#include "src/compiler/code-assembler.h"
+#include "src/objects.h"
+
+namespace v8 {
+namespace internal {
+
+class CallInterfaceDescriptor;
+
+// Provides JavaScript-specific "macro-assembler" functionality on top of the
+// CodeAssembler. By factoring the JavaScript-isms out of the CodeAssembler,
+// it's possible to add JavaScript-specific useful CodeAssembler "macros"
+// without modifying files in the compiler directory (and requiring a review
+// from a compiler directory OWNER).
+class CodeStubAssembler : public compiler::CodeAssembler {
+ public:
+  // Create with CallStub linkage.
+  // |result_size| specifies the number of results returned by the stub.
+  // TODO(rmcilroy): move result_size to the CallInterfaceDescriptor.
+  CodeStubAssembler(Isolate* isolate, Zone* zone,
+                    const CallInterfaceDescriptor& descriptor,
+                    Code::Flags flags, const char* name,
+                    size_t result_size = 1);
+
+  // Create with JSCall linkage.
+  CodeStubAssembler(Isolate* isolate, Zone* zone, int parameter_count,
+                    Code::Flags flags, const char* name);
+
+  enum ParameterMode { INTEGER_PARAMETERS, SMI_PARAMETERS };
+
+  compiler::Node* BooleanMapConstant();
+  compiler::Node* EmptyStringConstant();
+  compiler::Node* HeapNumberMapConstant();
+  compiler::Node* NoContextConstant();
+  compiler::Node* NullConstant();
+  compiler::Node* UndefinedConstant();
+  compiler::Node* StaleRegisterConstant();
+
+  // Float64 operations.
+  compiler::Node* Float64Ceil(compiler::Node* x);
+  compiler::Node* Float64Floor(compiler::Node* x);
+  compiler::Node* Float64Round(compiler::Node* x);
+  compiler::Node* Float64Trunc(compiler::Node* x);
+
+  // Tag a Word as a Smi value.
+  compiler::Node* SmiTag(compiler::Node* value);
+  // Untag a Smi value as a Word.
+  compiler::Node* SmiUntag(compiler::Node* value);
+
+  // Smi conversions.
+  compiler::Node* SmiToFloat64(compiler::Node* value);
+  compiler::Node* SmiFromWord32(compiler::Node* value);
+  compiler::Node* SmiToWord(compiler::Node* value) { return SmiUntag(value); }
+  compiler::Node* SmiToWord32(compiler::Node* value);
+
+  // Smi operations.
+  compiler::Node* SmiAdd(compiler::Node* a, compiler::Node* b);
+  compiler::Node* SmiAddWithOverflow(compiler::Node* a, compiler::Node* b);
+  compiler::Node* SmiSub(compiler::Node* a, compiler::Node* b);
+  compiler::Node* SmiSubWithOverflow(compiler::Node* a, compiler::Node* b);
+  compiler::Node* SmiEqual(compiler::Node* a, compiler::Node* b);
+  compiler::Node* SmiAboveOrEqual(compiler::Node* a, compiler::Node* b);
+  compiler::Node* SmiLessThan(compiler::Node* a, compiler::Node* b);
+  compiler::Node* SmiLessThanOrEqual(compiler::Node* a, compiler::Node* b);
+  compiler::Node* SmiMin(compiler::Node* a, compiler::Node* b);
+
+  // Allocate an object of the given size.
+  compiler::Node* Allocate(compiler::Node* size, AllocationFlags flags = kNone);
+  compiler::Node* Allocate(int size, AllocationFlags flags = kNone);
+  compiler::Node* InnerAllocate(compiler::Node* previous, int offset);
+  compiler::Node* InnerAllocate(compiler::Node* previous,
+                                compiler::Node* offset);
+
+  // Check a value for smi-ness
+  compiler::Node* WordIsSmi(compiler::Node* a);
+  // Check that the value is a positive smi.
+  compiler::Node* WordIsPositiveSmi(compiler::Node* a);
+
+  void BranchIfSmiLessThan(compiler::Node* a, compiler::Node* b, Label* if_true,
+                           Label* if_false) {
+    BranchIf(SmiLessThan(a, b), if_true, if_false);
+  }
+
+  void BranchIfSmiLessThanOrEqual(compiler::Node* a, compiler::Node* b,
+                                  Label* if_true, Label* if_false) {
+    BranchIf(SmiLessThanOrEqual(a, b), if_true, if_false);
+  }
+
+  void BranchIfFloat64IsNaN(compiler::Node* value, Label* if_true,
+                            Label* if_false) {
+    BranchIfFloat64Equal(value, value, if_false, if_true);
+  }
+
+  // Load an object pointer from a buffer that isn't in the heap.
+  compiler::Node* LoadBufferObject(compiler::Node* buffer, int offset,
+                                   MachineType rep = MachineType::AnyTagged());
+  // Load a field from an object on the heap.
+  compiler::Node* LoadObjectField(compiler::Node* object, int offset,
+                                  MachineType rep = MachineType::AnyTagged());
+  // Load the floating point value of a HeapNumber.
+  compiler::Node* LoadHeapNumberValue(compiler::Node* object);
+  // Load the Map of an HeapObject.
+  compiler::Node* LoadMap(compiler::Node* object);
+  // Load the instance type of an HeapObject.
+  compiler::Node* LoadInstanceType(compiler::Node* object);
+  // Load the elements backing store of a JSObject.
+  compiler::Node* LoadElements(compiler::Node* object);
+  // Load the length of a fixed array base instance.
+  compiler::Node* LoadFixedArrayBaseLength(compiler::Node* array);
+  // Load the bit field of a Map.
+  compiler::Node* LoadMapBitField(compiler::Node* map);
+  // Load bit field 2 of a map.
+  compiler::Node* LoadMapBitField2(compiler::Node* map);
+  // Load bit field 3 of a map.
+  compiler::Node* LoadMapBitField3(compiler::Node* map);
+  // Load the instance type of a map.
+  compiler::Node* LoadMapInstanceType(compiler::Node* map);
+  // Load the instance descriptors of a map.
+  compiler::Node* LoadMapDescriptors(compiler::Node* map);
+  // Load the prototype of a map.
+  compiler::Node* LoadMapPrototype(compiler::Node* map);
+
+  // Load the hash field of a name.
+  compiler::Node* LoadNameHash(compiler::Node* name);
+  // Load the instance size of a Map.
+  compiler::Node* LoadMapInstanceSize(compiler::Node* map);
+
+  compiler::Node* AllocateUninitializedFixedArray(compiler::Node* length);
+
+  // Load an array element from a FixedArray.
+  compiler::Node* LoadFixedArrayElement(
+      compiler::Node* object, compiler::Node* int32_index,
+      int additional_offset = 0,
+      ParameterMode parameter_mode = INTEGER_PARAMETERS);
+
+  // Context manipulation
+  compiler::Node* LoadNativeContext(compiler::Node* context);
+
+  compiler::Node* LoadJSArrayElementsMap(ElementsKind kind,
+                                         compiler::Node* native_context);
+
+  // Store the floating point value of a HeapNumber.
+  compiler::Node* StoreHeapNumberValue(compiler::Node* object,
+                                       compiler::Node* value);
+  // Store a field to an object on the heap.
+  compiler::Node* StoreObjectField(
+      compiler::Node* object, int offset, compiler::Node* value);
+  compiler::Node* StoreObjectFieldNoWriteBarrier(
+      compiler::Node* object, int offset, compiler::Node* value,
+      MachineRepresentation rep = MachineRepresentation::kTagged);
+  // Store the Map of an HeapObject.
+  compiler::Node* StoreMapNoWriteBarrier(compiler::Node* object,
+                                         compiler::Node* map);
+  // Store an array element to a FixedArray.
+  compiler::Node* StoreFixedArrayElement(
+      compiler::Node* object, compiler::Node* index, compiler::Node* value,
+      WriteBarrierMode barrier_mode = UPDATE_WRITE_BARRIER,
+      ParameterMode parameter_mode = INTEGER_PARAMETERS);
+
+  compiler::Node* StoreFixedDoubleArrayElement(
+      compiler::Node* object, compiler::Node* index, compiler::Node* value,
+      ParameterMode parameter_mode = INTEGER_PARAMETERS);
+
+  // Allocate a HeapNumber without initializing its value.
+  compiler::Node* AllocateHeapNumber();
+  // Allocate a HeapNumber with a specific value.
+  compiler::Node* AllocateHeapNumberWithValue(compiler::Node* value);
+  // Allocate a SeqOneByteString with the given length.
+  compiler::Node* AllocateSeqOneByteString(int length);
+  // Allocate a SeqTwoByteString with the given length.
+  compiler::Node* AllocateSeqTwoByteString(int length);
+  // Allocated an JSArray
+  compiler::Node* AllocateJSArray(ElementsKind kind, compiler::Node* array_map,
+                                  compiler::Node* capacity,
+                                  compiler::Node* length,
+                                  compiler::Node* allocation_site = nullptr,
+                                  ParameterMode mode = INTEGER_PARAMETERS);
+
+  // Allocation site manipulation
+  void InitializeAllocationMemento(compiler::Node* base_allocation,
+                                   int base_allocation_size,
+                                   compiler::Node* allocation_site);
+
+  compiler::Node* TruncateTaggedToFloat64(compiler::Node* context,
+                                          compiler::Node* value);
+  compiler::Node* TruncateTaggedToWord32(compiler::Node* context,
+                                         compiler::Node* value);
+  // Truncate the floating point value of a HeapNumber to an Int32.
+  compiler::Node* TruncateHeapNumberValueToWord32(compiler::Node* object);
+
+  // Conversions.
+  compiler::Node* ChangeFloat64ToTagged(compiler::Node* value);
+  compiler::Node* ChangeInt32ToTagged(compiler::Node* value);
+  compiler::Node* ChangeUint32ToTagged(compiler::Node* value);
+
+  // Type conversions.
+  // Throws a TypeError for {method_name} if {value} is not coercible to Object,
+  // or returns the {value} converted to a String otherwise.
+  compiler::Node* ToThisString(compiler::Node* context, compiler::Node* value,
+                               char const* method_name);
+
+  // String helpers.
+  // Load a character from a String (might flatten a ConsString).
+  compiler::Node* StringCharCodeAt(compiler::Node* string,
+                                   compiler::Node* smi_index);
+  // Return the single character string with only {code}.
+  compiler::Node* StringFromCharCode(compiler::Node* code);
+
+  // Returns a node that is true if the given bit is set in |word32|.
+  template <typename T>
+  compiler::Node* BitFieldDecode(compiler::Node* word32) {
+    return BitFieldDecode(word32, T::kShift, T::kMask);
+  }
+
+  compiler::Node* BitFieldDecode(compiler::Node* word32, uint32_t shift,
+                                 uint32_t mask);
+
+  // Various building blocks for stubs doing property lookups.
+  void TryToName(compiler::Node* key, Label* if_keyisindex, Variable* var_index,
+                 Label* if_keyisunique, Label* call_runtime);
+
+  void TryLookupProperty(compiler::Node* object, compiler::Node* map,
+                         compiler::Node* instance_type, compiler::Node* name,
+                         Label* if_found, Label* if_not_found,
+                         Label* call_runtime);
+
+  void TryLookupElement(compiler::Node* object, compiler::Node* map,
+                        compiler::Node* instance_type, compiler::Node* index,
+                        Label* if_found, Label* if_not_found,
+                        Label* call_runtime);
+
+  // Instanceof helpers.
+  // ES6 section 7.3.19 OrdinaryHasInstance (C, O)
+  compiler::Node* OrdinaryHasInstance(compiler::Node* context,
+                                      compiler::Node* callable,
+                                      compiler::Node* object);
+
+ private:
+  compiler::Node* ElementOffsetFromIndex(compiler::Node* index,
+                                         ElementsKind kind, ParameterMode mode,
+                                         int base_size = 0);
+
+  compiler::Node* AllocateRawAligned(compiler::Node* size_in_bytes,
+                                     AllocationFlags flags,
+                                     compiler::Node* top_address,
+                                     compiler::Node* limit_address);
+  compiler::Node* AllocateRawUnaligned(compiler::Node* size_in_bytes,
+                                       AllocationFlags flags,
+                                       compiler::Node* top_adddress,
+                                       compiler::Node* limit_address);
+
+  static const int kElementLoopUnrollThreshold = 8;
+};
+
+}  // namespace internal
+}  // namespace v8
+
+#endif  // V8_CODE_STUB_ASSEMBLER_H_