Add support for hydrogen control instructions with >2 successor blocks.

src/x64/lithium-x64.h

Index: src/x64/lithium-x64.h
===================================================================
--- src/x64/lithium-x64.h	(revision 8261)
+++ src/x64/lithium-x64.h	(working copy)
@@ -32,6 +32,7 @@
 #include "lithium-allocator.h"
 #include "lithium.h"
 #include "safepoint-table.h"
+#include "utils.h"
 
 namespace v8 {
 namespace internal {
@@ -286,37 +287,6 @@
 };
 
 
-template<typename ElementType, int NumElements>
-class OperandContainer {
- public:
-  OperandContainer() {
-    for (int i = 0; i < NumElements; i++) elems_[i] = NULL;
-  }
-  int length() { return NumElements; }
-  ElementType& operator[](int i) {
-    ASSERT(i < length());
-    return elems_[i];
-  }
-  void PrintOperandsTo(StringStream* stream);
-
- private:
-  ElementType elems_[NumElements];
-};
-
-
-template<typename ElementType>
-class OperandContainer<ElementType, 0> {
- public:
-  int length() { return 0; }
-  void PrintOperandsTo(StringStream* stream) { }
-  ElementType& operator[](int i) {
-    UNREACHABLE();
-    static ElementType t = 0;
-    return t;
-  }
-};
-
-
 // R = number of result operands (0 or 1).
 // I = number of input operands.
 // T = number of temporary operands.
@@ -339,9 +309,9 @@
   virtual void PrintOutputOperandTo(StringStream* stream);
 
  protected:
-  OperandContainer<LOperand*, R> results_;
-  OperandContainer<LOperand*, I> inputs_;
-  OperandContainer<LOperand*, T> temps_;
+  EmbeddedContainer<LOperand*, R> results_;
+  EmbeddedContainer<LOperand*, I> inputs_;
+  EmbeddedContainer<LOperand*, T> temps_;
 };