1 files changed, 95 insertions, 0 deletions
diff --git a/deps/v8/src/interpreter/control-flow-builders.cc b/deps/v8/src/interpreter/control-flow-builders.cc
new file mode 100644
index 0000000000..3ecabe4351
--- /dev/null
+++ b/deps/v8/src/interpreter/control-flow-builders.cc
@@ -0,0 +1,95 @@
+// 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/interpreter/control-flow-builders.h"
+
+namespace v8 {
+namespace internal {
+namespace interpreter {
+
+
+BreakableControlFlowBuilder::~BreakableControlFlowBuilder() {
+  DCHECK(break_sites_.empty());
+}
+
+
+void BreakableControlFlowBuilder::SetBreakTarget(const BytecodeLabel& target) {
+  BindLabels(target, &break_sites_);
+}
+
+
+void BreakableControlFlowBuilder::EmitJump(ZoneVector<BytecodeLabel>* sites) {
+  sites->push_back(BytecodeLabel());
+  builder()->Jump(&sites->back());
+}
+
+
+void BreakableControlFlowBuilder::EmitJumpIfTrue(
+    ZoneVector<BytecodeLabel>* sites) {
+  sites->push_back(BytecodeLabel());
+  builder()->JumpIfTrue(&sites->back());
+}
+
+
+void BreakableControlFlowBuilder::EmitJumpIfUndefined(
+    ZoneVector<BytecodeLabel>* sites) {
+  sites->push_back(BytecodeLabel());
+  builder()->JumpIfUndefined(&sites->back());
+}
+
+
+void BreakableControlFlowBuilder::EmitJumpIfNull(
+    ZoneVector<BytecodeLabel>* sites) {
+  sites->push_back(BytecodeLabel());
+  builder()->JumpIfNull(&sites->back());
+}
+
+
+void BreakableControlFlowBuilder::EmitJump(ZoneVector<BytecodeLabel>* sites,
+                                           int index) {
+  builder()->Jump(&sites->at(index));
+}
+
+
+void BreakableControlFlowBuilder::EmitJumpIfTrue(
+    ZoneVector<BytecodeLabel>* sites, int index) {
+  builder()->JumpIfTrue(&sites->at(index));
+}
+
+
+void BreakableControlFlowBuilder::BindLabels(const BytecodeLabel& target,
+                                             ZoneVector<BytecodeLabel>* sites) {
+  for (size_t i = 0; i < sites->size(); i++) {
+    BytecodeLabel& site = sites->at(i);
+    builder()->Bind(target, &site);
+  }
+  sites->clear();
+}
+
+
+LoopBuilder::~LoopBuilder() { DCHECK(continue_sites_.empty()); }
+
+
+void LoopBuilder::SetContinueTarget(const BytecodeLabel& target) {
+  BindLabels(target, &continue_sites_);
+}
+
+
+SwitchBuilder::~SwitchBuilder() {
+#ifdef DEBUG
+  for (auto site : case_sites_) {
+    DCHECK(site.is_bound());
+  }
+#endif
+}
+
+
+void SwitchBuilder::SetCaseTarget(int index) {
+  BytecodeLabel& site = case_sites_.at(index);
+  builder()->Bind(&site);
+}
+
+}  // namespace interpreter
+}  // namespace internal
+}  // namespace v8