BASELINE: Update Chromium to 59.0.3071.134

Change-Id: Id02ef6fb2204c5fd21668a1c3e6911c83b17585a
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>

1 files changed, 49 insertions, 0 deletions

diff --git a/chromium/v8/src/code-stubs-utils.h b/chromium/v8/src/code-stubs-utils.h
new file mode 100644
index 00000000000..4b411acb9bb
--- /dev/null
+++ b/chromium/v8/src/code-stubs-utils.h
@@ -0,0 +1,49 @@
+// Copyright 2017 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_STUBS_UTILS_H_
+#define V8_CODE_STUBS_UTILS_H_
+
+namespace v8 {
+namespace internal {
+
+namespace compiler {
+class CodeAssemblerState;
+}  // namespace compiler
+
+// ----------------------------------------------------------------------------
+// Support macro for defining code stubs with Turbofan.
+// ----------------------------------------------------------------------------
+//
+// A code stub generator is defined by writing:
+//
+//   TF_STUB(name, code_assember_base_class) {
+//     ...
+//   }
+//
+// In the body of the generator function the arguments can be accessed
+// as "Parameter(n)".
+#define TF_STUB(StubName, AssemblerBase)                                       \
+  class StubName##Assembler : public AssemblerBase {                           \
+   public:                                                                     \
+    typedef StubName::Descriptor Descriptor;                                   \
+                                                                               \
+    explicit StubName##Assembler(compiler::CodeAssemblerState* state)          \
+        : AssemblerBase(state) {}                                              \
+    void Generate##StubName##Impl(const StubName* stub);                       \
+                                                                               \
+    Node* Parameter(Descriptor::ParameterIndices index) {                      \
+      return CodeAssembler::Parameter(static_cast<int>(index));                \
+    }                                                                          \
+  };                                                                           \
+  void StubName::GenerateAssembly(compiler::CodeAssemblerState* state) const { \
+    StubName##Assembler assembler(state);                                      \
+    assembler.Generate##StubName##Impl(this);                                  \
+  }                                                                            \
+  void StubName##Assembler::Generate##StubName##Impl(const StubName* stub)
+
+}  // namespace internal
+}  // namespace v8
+
+#endif  // V8_CODE_STUBS_UTILS_H_