[turbofan] Centralize splitting for memory operands.

src/compiler/greedy-allocator.h

Index: src/compiler/greedy-allocator.h
diff --git a/src/compiler/greedy-allocator.h b/src/compiler/greedy-allocator.h
index 45bbd87da894b9e9a300bbc95ea947ede4cde3e7..b61ba4242f3f684b879475670427c65376d985e9 100644
--- a/src/compiler/greedy-allocator.h
+++ b/src/compiler/greedy-allocator.h
@@ -128,18 +128,10 @@ class GreedyAllocator final : public RegisterAllocator {
   // Evict and reschedule conflicts of a given range, at a given register.
   void EvictAndRescheduleConflicts(unsigned reg_id, const LiveRange* range);
 
-  // Find the optimal split for ranges defined by a memory operand, e.g.
-  // constants or function parameters passed on the stack.
-  void SplitAndSpillRangesDefinedByMemoryOperand();
-
   void TryAllocateCandidate(const AllocationCandidate& candidate);
   void TryAllocateLiveRange(LiveRange* range);
   void TryAllocateGroup(LiveRangeGroup* group);
 
-  bool CanProcessRange(LiveRange* range) const {
-    return range != nullptr && !range->IsEmpty() && range->kind() == mode();
-  }
-
   // Calculate the weight of a candidate for allocation.
   void EnsureValidRangeWeight(LiveRange* range);