[Interpreter] Add interpreter support for compare ops and ToBoolean.

src/runtime/runtime-interpreter.cc

+// Copyright 2015 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.
+
+#include "src/runtime/runtime-utils.h"
+
+#include "src/arguments.h"
+#include "src/isolate-inl.h"
+
+namespace v8 {
+namespace internal {
+
+
+RUNTIME_FUNCTION(Runtime_InterpreterEquals) {
+  HandleScope scope(isolate);
+  DCHECK_EQ(2, args.length());
+  CONVERT_ARG_HANDLE_CHECKED(Object, x, 0);
+  CONVERT_ARG_HANDLE_CHECKED(Object, y, 1);
+  Maybe<bool> result = Object::Equals(x, y);
+  if (result.IsJust()) {
+    return isolate->heap()->ToBoolean(result.FromJust());
+  } else {
+    return isolate->heap()->exception();
+  }
+}
+
+
+RUNTIME_FUNCTION(Runtime_InterpreterNotEquals) {
+  HandleScope scope(isolate);
+  DCHECK_EQ(2, args.length());
+  CONVERT_ARG_HANDLE_CHECKED(Object, x, 0);
+  CONVERT_ARG_HANDLE_CHECKED(Object, y, 1);
+  Maybe<bool> result = Object::Equals(x, y);
+  if (result.IsJust()) {
+    return isolate->heap()->ToBoolean(!result.FromJust());
+  } else {
+    return isolate->heap()->exception();
+  }
+}
+
+
+RUNTIME_FUNCTION(Runtime_InterpreterLessThan) {
+  HandleScope scope(isolate);
+  DCHECK_EQ(2, args.length());
+  CONVERT_ARG_HANDLE_CHECKED(Object, x, 0);
+  CONVERT_ARG_HANDLE_CHECKED(Object, y, 1);
+  Maybe<bool> result = Object::LessThan(x, y);
+  if (result.IsJust()) {
+    return isolate->heap()->ToBoolean(result.FromJust());
+  } else {
+    return isolate->heap()->exception();
+  }
+}
+
+
+RUNTIME_FUNCTION(Runtime_InterpreterGreaterThan) {
+  HandleScope scope(isolate);
+  DCHECK_EQ(2, args.length());
+  CONVERT_ARG_HANDLE_CHECKED(Object, x, 0);
+  CONVERT_ARG_HANDLE_CHECKED(Object, y, 1);
+  Maybe<bool> result = Object::GreaterThan(x, y);
+  if (result.IsJust()) {
+    return isolate->heap()->ToBoolean(result.FromJust());
+  } else {
+    return isolate->heap()->exception();
+  }
+}
+
+
+RUNTIME_FUNCTION(Runtime_InterpreterLessThanOrEqual) {
+  HandleScope scope(isolate);
+  DCHECK_EQ(2, args.length());
+  CONVERT_ARG_HANDLE_CHECKED(Object, x, 0);
+  CONVERT_ARG_HANDLE_CHECKED(Object, y, 1);
+  Maybe<bool> result = Object::LessThanOrEqual(x, y);
+  if (result.IsJust()) {
+    return isolate->heap()->ToBoolean(result.FromJust());
+  } else {
+    return isolate->heap()->exception();
+  }
+}
+
+
+RUNTIME_FUNCTION(Runtime_InterpreterGreaterThanOrEqual) {
+  HandleScope scope(isolate);
+  DCHECK_EQ(2, args.length());
+  CONVERT_ARG_HANDLE_CHECKED(Object, x, 0);
+  CONVERT_ARG_HANDLE_CHECKED(Object, y, 1);
+  Maybe<bool> result = Object::GreaterThanOrEqual(x, y);
+  if (result.IsJust()) {
+    return isolate->heap()->ToBoolean(result.FromJust());
+  } else {
+    return isolate->heap()->exception();
+  }
+}
+
+
+RUNTIME_FUNCTION(Runtime_InterpreterStrictEquals) {
+  SealHandleScope scope(isolate);
+  DCHECK_EQ(2, args.length());
+  CONVERT_ARG_CHECKED(Object, x, 0);
+  CONVERT_ARG_CHECKED(Object, y, 1);
+  return isolate->heap()->ToBoolean(x->StrictEquals(y));
+}
+
+
+RUNTIME_FUNCTION(Runtime_InterpreterStrictNotEquals) {
+  SealHandleScope scope(isolate);
+  DCHECK_EQ(2, args.length());
+  CONVERT_ARG_CHECKED(Object, x, 0);
+  CONVERT_ARG_CHECKED(Object, y, 1);
+  return isolate->heap()->ToBoolean(!x->StrictEquals(y));
+}
+
+
+RUNTIME_FUNCTION(Runtime_InterpreterCastToBoolean) {
+  SealHandleScope scope(isolate);
+  DCHECK_EQ(1, args.length());
+  CONVERT_ARG_CHECKED(Object, x, 0);
+  return isolate->heap()->ToBoolean(x->BooleanValue());
+}
+
+
+}  // namespace internal
+}  // namespace v8