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/crankshaft/mips/lithium-gap-resolver-mips.h b/src/crankshaft/mips/lithium-gap-resolver-mips.h
new file mode 100644
index 0000000..6c5fd03
--- /dev/null
+++ b/src/crankshaft/mips/lithium-gap-resolver-mips.h
@@ -0,0 +1,59 @@
+// Copyright 2011 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_CRANKSHAFT_MIPS_LITHIUM_GAP_RESOLVER_MIPS_H_
+#define V8_CRANKSHAFT_MIPS_LITHIUM_GAP_RESOLVER_MIPS_H_
+
+#include "src/crankshaft/lithium.h"
+
+namespace v8 {
+namespace internal {
+
+class LCodeGen;
+class LGapResolver;
+
+class LGapResolver final BASE_EMBEDDED {
+ public:
+ explicit LGapResolver(LCodeGen* owner);
+
+ // Resolve a set of parallel moves, emitting assembler instructions.
+ void Resolve(LParallelMove* parallel_move);
+
+ private:
+ // Build the initial list of moves.
+ void BuildInitialMoveList(LParallelMove* parallel_move);
+
+ // Perform the move at the moves_ index in question (possibly requiring
+ // other moves to satisfy dependencies).
+ void PerformMove(int index);
+
+ // If a cycle is found in the series of moves, save the blocking value to
+ // a scratch register. The cycle must be found by hitting the root of the
+ // depth-first search.
+ void BreakCycle(int index);
+
+ // After a cycle has been resolved, restore the value from the scratch
+ // register to its proper destination.
+ void RestoreValue();
+
+ // Emit a move and remove it from the move graph.
+ void EmitMove(int index);
+
+ // Verify the move list before performing moves.
+ void Verify();
+
+ LCodeGen* cgen_;
+
+ // List of moves not yet resolved.
+ ZoneList<LMoveOperands> moves_;
+
+ int root_index_;
+ bool in_cycle_;
+ LOperand* saved_destination_;
+};
+
+} // namespace internal
+} // namespace v8
+
+#endif // V8_CRANKSHAFT_MIPS_LITHIUM_GAP_RESOLVER_MIPS_H_