[llvm] [TTI] NFC: Port TLI.shouldSinkOperands to TTI (PR #110564)

[Matt Arsenault via llvm-commits]

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@@ -1744,6 +1744,13 @@ class TargetTransformInfo {
   bool hasActiveVectorLength(unsigned Opcode, Type *DataType,
                              Align Alignment) const;
 
+  /// Return true if sinking I's operands to the same basic block as I is
+  /// profitable, e.g. because the operands can be folded into a target
+  /// instruction during instruction selection. After calling the function
+  /// \p Ops contains the Uses to sink ordered by dominance (dominating users
+  /// come first).
+  bool shouldSinkOperands(Instruction *I, SmallVectorImpl<Use *> &Ops) const;
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arsenm wrote:

I think the name needs work if it's moving to a more general place

https://github.com/llvm/llvm-project/pull/110564