Upgrade V8 to version 4.9.385.28
https://chromium.googlesource.com/v8/v8/+/4.9.385.28
FPIIM-449
Change-Id: I4b2e74289d4bf3667f2f3dc8aa2e541f63e26eb4
diff --git a/src/compiler/node-matchers.cc b/src/compiler/node-matchers.cc
new file mode 100644
index 0000000..1627b88
--- /dev/null
+++ b/src/compiler/node-matchers.cc
@@ -0,0 +1,60 @@
+// 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/compiler/node-matchers.h"
+
+namespace v8 {
+namespace internal {
+namespace compiler {
+
+bool NodeMatcher::IsComparison() const {
+ return IrOpcode::IsComparisonOpcode(opcode());
+}
+
+
+BranchMatcher::BranchMatcher(Node* branch)
+ : NodeMatcher(branch), if_true_(nullptr), if_false_(nullptr) {
+ if (branch->opcode() != IrOpcode::kBranch) return;
+ for (Node* use : branch->uses()) {
+ if (use->opcode() == IrOpcode::kIfTrue) {
+ DCHECK_NULL(if_true_);
+ if_true_ = use;
+ } else if (use->opcode() == IrOpcode::kIfFalse) {
+ DCHECK_NULL(if_false_);
+ if_false_ = use;
+ }
+ }
+}
+
+
+DiamondMatcher::DiamondMatcher(Node* merge)
+ : NodeMatcher(merge),
+ branch_(nullptr),
+ if_true_(nullptr),
+ if_false_(nullptr) {
+ if (merge->InputCount() != 2) return;
+ if (merge->opcode() != IrOpcode::kMerge) return;
+ Node* input0 = merge->InputAt(0);
+ if (input0->InputCount() != 1) return;
+ Node* input1 = merge->InputAt(1);
+ if (input1->InputCount() != 1) return;
+ Node* branch = input0->InputAt(0);
+ if (branch != input1->InputAt(0)) return;
+ if (branch->opcode() != IrOpcode::kBranch) return;
+ if (input0->opcode() == IrOpcode::kIfTrue &&
+ input1->opcode() == IrOpcode::kIfFalse) {
+ branch_ = branch;
+ if_true_ = input0;
+ if_false_ = input1;
+ } else if (input0->opcode() == IrOpcode::kIfFalse &&
+ input1->opcode() == IrOpcode::kIfTrue) {
+ branch_ = branch;
+ if_true_ = input1;
+ if_false_ = input0;
+ }
+}
+
+} // namespace compiler
+} // namespace internal
+} // namespace v8