Update V8 to version 4.1.0.21

This is a cherry-pick of all commits up to and including the
4.1.0.21 cherry-pick in Chromium.

Original commit message:

Version 4.1.0.21 (cherry-pick)

Merged 206e9136bde0f2b5ae8cb77afbb1e7833e5bd412

Unlink pages from the space page list after evacuation.

BUG=430201
LOG=N
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/953813002

Cr-Commit-Position: refs/branch-heads/4.1@{#22}
Cr-Branched-From: 2e08d2a7aa9d65d269d8c57aba82eb38a8cb0a18-refs/heads/candidates@{#25353}

---

FPIIM-449

Change-Id: I8c23c7bbb70772b4858fe8a47b64fa97ee0d1f8c
diff --git a/test/unittests/compiler/node-test-utils.h b/test/unittests/compiler/node-test-utils.h
new file mode 100644
index 0000000..02b6e43
--- /dev/null
+++ b/test/unittests/compiler/node-test-utils.h
@@ -0,0 +1,196 @@
+// 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_UNITTESTS_COMPILER_NODE_TEST_UTILS_H_
+#define V8_UNITTESTS_COMPILER_NODE_TEST_UTILS_H_
+
+#include "src/compiler/machine-operator.h"
+#include "src/compiler/machine-type.h"
+#include "testing/gmock/include/gmock/gmock.h"
+
+namespace v8 {
+namespace internal {
+
+// Forward declarations.
+class ExternalReference;
+class HeapObject;
+template <class T>
+class Unique;
+
+namespace compiler {
+
+// Forward declarations.
+class BufferAccess;
+class CallDescriptor;
+struct ElementAccess;
+struct FieldAccess;
+class Node;
+
+
+using ::testing::Matcher;
+
+
+Matcher<Node*> IsBranch(const Matcher<Node*>& value_matcher,
+                        const Matcher<Node*>& control_matcher);
+Matcher<Node*> IsMerge(const Matcher<Node*>& control0_matcher,
+                       const Matcher<Node*>& control1_matcher);
+Matcher<Node*> IsIfTrue(const Matcher<Node*>& control_matcher);
+Matcher<Node*> IsIfFalse(const Matcher<Node*>& control_matcher);
+Matcher<Node*> IsValueEffect(const Matcher<Node*>& value_matcher);
+Matcher<Node*> IsFinish(const Matcher<Node*>& value_matcher,
+                        const Matcher<Node*>& effect_matcher);
+Matcher<Node*> IsExternalConstant(
+    const Matcher<ExternalReference>& value_matcher);
+Matcher<Node*> IsHeapConstant(
+    const Matcher<Unique<HeapObject> >& value_matcher);
+Matcher<Node*> IsFloat32Constant(const Matcher<float>& value_matcher);
+Matcher<Node*> IsFloat64Constant(const Matcher<double>& value_matcher);
+Matcher<Node*> IsInt32Constant(const Matcher<int32_t>& value_matcher);
+Matcher<Node*> IsInt64Constant(const Matcher<int64_t>& value_matcher);
+Matcher<Node*> IsNumberConstant(const Matcher<double>& value_matcher);
+Matcher<Node*> IsSelect(const Matcher<MachineType>& type_matcher,
+                        const Matcher<Node*>& value0_matcher,
+                        const Matcher<Node*>& value1_matcher,
+                        const Matcher<Node*>& value2_matcher);
+Matcher<Node*> IsPhi(const Matcher<MachineType>& type_matcher,
+                     const Matcher<Node*>& value0_matcher,
+                     const Matcher<Node*>& value1_matcher,
+                     const Matcher<Node*>& merge_matcher);
+Matcher<Node*> IsEffectPhi(const Matcher<Node*>& effect0_matcher,
+                           const Matcher<Node*>& effect1_matcher,
+                           const Matcher<Node*>& merge_matcher);
+Matcher<Node*> IsProjection(const Matcher<size_t>& index_matcher,
+                            const Matcher<Node*>& base_matcher);
+Matcher<Node*> IsCall(const Matcher<CallDescriptor*>& descriptor_matcher,
+                      const Matcher<Node*>& value0_matcher,
+                      const Matcher<Node*>& value1_matcher,
+                      const Matcher<Node*>& effect_matcher,
+                      const Matcher<Node*>& control_matcher);
+Matcher<Node*> IsCall(const Matcher<CallDescriptor*>& descriptor_matcher,
+                      const Matcher<Node*>& value0_matcher,
+                      const Matcher<Node*>& value1_matcher,
+                      const Matcher<Node*>& value2_matcher,
+                      const Matcher<Node*>& value3_matcher,
+                      const Matcher<Node*>& effect_matcher,
+                      const Matcher<Node*>& control_matcher);
+
+Matcher<Node*> IsAnyToBoolean(const Matcher<Node*>& value_matcher);
+Matcher<Node*> IsBooleanNot(const Matcher<Node*>& value_matcher);
+Matcher<Node*> IsNumberEqual(const Matcher<Node*>& lhs_matcher,
+                             const Matcher<Node*>& rhs_matcher);
+Matcher<Node*> IsNumberLessThan(const Matcher<Node*>& lhs_matcher,
+                                const Matcher<Node*>& rhs_matcher);
+Matcher<Node*> IsNumberSubtract(const Matcher<Node*>& lhs_matcher,
+                                const Matcher<Node*>& rhs_matcher);
+Matcher<Node*> IsNumberMultiply(const Matcher<Node*>& lhs_matcher,
+                                const Matcher<Node*>& rhs_matcher);
+Matcher<Node*> IsLoadField(const Matcher<FieldAccess>& access_matcher,
+                           const Matcher<Node*>& base_matcher,
+                           const Matcher<Node*>& effect_matcher,
+                           const Matcher<Node*>& control_matcher);
+Matcher<Node*> IsStoreField(const Matcher<FieldAccess>& access_matcher,
+                            const Matcher<Node*>& base_matcher,
+                            const Matcher<Node*>& value_matcher,
+                            const Matcher<Node*>& effect_matcher,
+                            const Matcher<Node*>& control_matcher);
+Matcher<Node*> IsLoadBuffer(const Matcher<BufferAccess>& access_matcher,
+                            const Matcher<Node*>& buffer_matcher,
+                            const Matcher<Node*>& offset_matcher,
+                            const Matcher<Node*>& length_matcher,
+                            const Matcher<Node*>& effect_matcher,
+                            const Matcher<Node*>& control_matcher);
+Matcher<Node*> IsStoreBuffer(const Matcher<BufferAccess>& access_matcher,
+                             const Matcher<Node*>& buffer_matcher,
+                             const Matcher<Node*>& offset_matcher,
+                             const Matcher<Node*>& length_matcher,
+                             const Matcher<Node*>& value_matcher,
+                             const Matcher<Node*>& effect_matcher,
+                             const Matcher<Node*>& control_matcher);
+Matcher<Node*> IsLoadElement(const Matcher<ElementAccess>& access_matcher,
+                             const Matcher<Node*>& base_matcher,
+                             const Matcher<Node*>& index_matcher,
+                             const Matcher<Node*>& control_matcher,
+                             const Matcher<Node*>& effect_matcher);
+Matcher<Node*> IsStoreElement(const Matcher<ElementAccess>& access_matcher,
+                              const Matcher<Node*>& base_matcher,
+                              const Matcher<Node*>& index_matcher,
+                              const Matcher<Node*>& value_matcher,
+                              const Matcher<Node*>& effect_matcher,
+                              const Matcher<Node*>& control_matcher);
+
+Matcher<Node*> IsLoad(const Matcher<LoadRepresentation>& rep_matcher,
+                      const Matcher<Node*>& base_matcher,
+                      const Matcher<Node*>& index_matcher,
+                      const Matcher<Node*>& effect_matcher,
+                      const Matcher<Node*>& control_matcher);
+Matcher<Node*> IsStore(const Matcher<StoreRepresentation>& rep_matcher,
+                       const Matcher<Node*>& base_matcher,
+                       const Matcher<Node*>& index_matcher,
+                       const Matcher<Node*>& value_matcher,
+                       const Matcher<Node*>& effect_matcher,
+                       const Matcher<Node*>& control_matcher);
+Matcher<Node*> IsWord32And(const Matcher<Node*>& lhs_matcher,
+                           const Matcher<Node*>& rhs_matcher);
+Matcher<Node*> IsWord32Sar(const Matcher<Node*>& lhs_matcher,
+                           const Matcher<Node*>& rhs_matcher);
+Matcher<Node*> IsWord32Shl(const Matcher<Node*>& lhs_matcher,
+                           const Matcher<Node*>& rhs_matcher);
+Matcher<Node*> IsWord32Shr(const Matcher<Node*>& lhs_matcher,
+                           const Matcher<Node*>& rhs_matcher);
+Matcher<Node*> IsWord32Ror(const Matcher<Node*>& lhs_matcher,
+                           const Matcher<Node*>& rhs_matcher);
+Matcher<Node*> IsWord32Equal(const Matcher<Node*>& lhs_matcher,
+                             const Matcher<Node*>& rhs_matcher);
+Matcher<Node*> IsWord64And(const Matcher<Node*>& lhs_matcher,
+                           const Matcher<Node*>& rhs_matcher);
+Matcher<Node*> IsWord64Shl(const Matcher<Node*>& lhs_matcher,
+                           const Matcher<Node*>& rhs_matcher);
+Matcher<Node*> IsWord64Sar(const Matcher<Node*>& lhs_matcher,
+                           const Matcher<Node*>& rhs_matcher);
+Matcher<Node*> IsWord64Equal(const Matcher<Node*>& lhs_matcher,
+                             const Matcher<Node*>& rhs_matcher);
+Matcher<Node*> IsInt32AddWithOverflow(const Matcher<Node*>& lhs_matcher,
+                                      const Matcher<Node*>& rhs_matcher);
+Matcher<Node*> IsInt32Add(const Matcher<Node*>& lhs_matcher,
+                          const Matcher<Node*>& rhs_matcher);
+Matcher<Node*> IsInt32Sub(const Matcher<Node*>& lhs_matcher,
+                          const Matcher<Node*>& rhs_matcher);
+Matcher<Node*> IsInt32Mul(const Matcher<Node*>& lhs_matcher,
+                          const Matcher<Node*>& rhs_matcher);
+Matcher<Node*> IsInt32MulHigh(const Matcher<Node*>& lhs_matcher,
+                              const Matcher<Node*>& rhs_matcher);
+Matcher<Node*> IsInt32LessThan(const Matcher<Node*>& lhs_matcher,
+                               const Matcher<Node*>& rhs_matcher);
+Matcher<Node*> IsUint32LessThan(const Matcher<Node*>& lhs_matcher,
+                                const Matcher<Node*>& rhs_matcher);
+Matcher<Node*> IsUint32LessThanOrEqual(const Matcher<Node*>& lhs_matcher,
+                                       const Matcher<Node*>& rhs_matcher);
+Matcher<Node*> IsChangeFloat64ToInt32(const Matcher<Node*>& input_matcher);
+Matcher<Node*> IsChangeFloat64ToUint32(const Matcher<Node*>& input_matcher);
+Matcher<Node*> IsChangeInt32ToFloat64(const Matcher<Node*>& input_matcher);
+Matcher<Node*> IsChangeInt32ToInt64(const Matcher<Node*>& input_matcher);
+Matcher<Node*> IsChangeUint32ToFloat64(const Matcher<Node*>& input_matcher);
+Matcher<Node*> IsChangeUint32ToUint64(const Matcher<Node*>& input_matcher);
+Matcher<Node*> IsTruncateFloat64ToFloat32(const Matcher<Node*>& input_matcher);
+Matcher<Node*> IsTruncateFloat64ToInt32(const Matcher<Node*>& input_matcher);
+Matcher<Node*> IsTruncateInt64ToInt32(const Matcher<Node*>& input_matcher);
+Matcher<Node*> IsFloat64Sub(const Matcher<Node*>& lhs_matcher,
+                            const Matcher<Node*>& rhs_matcher);
+Matcher<Node*> IsFloat64Sqrt(const Matcher<Node*>& input_matcher);
+Matcher<Node*> IsFloat64Floor(const Matcher<Node*>& input_matcher);
+Matcher<Node*> IsFloat64Ceil(const Matcher<Node*>& input_matcher);
+Matcher<Node*> IsFloat64RoundTruncate(const Matcher<Node*>& input_matcher);
+Matcher<Node*> IsFloat64RoundTiesAway(const Matcher<Node*>& input_matcher);
+Matcher<Node*> IsToNumber(const Matcher<Node*>& base_matcher,
+                          const Matcher<Node*>& context_matcher,
+                          const Matcher<Node*>& effect_matcher,
+                          const Matcher<Node*>& control_matcher);
+Matcher<Node*> IsNumberToInt32(const Matcher<Node*>& input_matcher);
+Matcher<Node*> IsNumberToUint32(const Matcher<Node*>& input_matcher);
+
+}  // namespace compiler
+}  // namespace internal
+}  // namespace v8
+
+#endif  // V8_UNITTESTS_COMPILER_NODE_TEST_UTILS_H_