[llvm] [IA] Generalize the support for power-of-two (de)interleave intrinsics (PR #123863)

[Min-Yih Hsu via llvm-commits]

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@@ -3157,12 +3157,11 @@ class TargetLoweringBase {
   /// llvm.vector.deinterleave2
   ///
   /// \p DI is the deinterleave intrinsic.
-  /// \p LI is the accompanying load instruction
-  /// \p DeadInsts is a reference to a vector that keeps track of dead
-  /// instruction during transformations.
-  virtual bool lowerDeinterleaveIntrinsicToLoad(
-      IntrinsicInst *DI, LoadInst *LI,
-      SmallVectorImpl<Instruction *> &DeadInsts) const {
+  /// \p LI is the accompanying load instruction.
+  /// \p DeinterleaveValues contains the deinterleaved values.
+  virtual bool
+  lowerDeinterleaveIntrinsicToLoad(IntrinsicInst *DI, LoadInst *LI,
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mshockwave wrote:

AArch64 used it but only for retrieving the Module. So I've removed the `IntrinsicInst` argument from both callbacks.

https://github.com/llvm/llvm-project/pull/123863