[llvm] [AArch64] Merge scaled and unscaled narrow zero stores (PR #136705)

[Jon Roelofs via llvm-commits]

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@@ -892,11 +892,10 @@ AArch64LoadStoreOpt::mergeNarrowZeroStores(MachineBasicBlock::iterator I,
     OffsetImm = IOffsetInBytes;
 
   int NewOpcode = getMatchingWideOpcode(Opc);
-  bool FinalIsScaled = !TII->hasUnscaledLdStOffset(NewOpcode);
-
-  // Adjust final offset if the result opcode is a scaled store.
-  if (FinalIsScaled) {
-    int NewOffsetStride = FinalIsScaled ? TII->getMemScale(NewOpcode) : 1;
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jroelofs wrote:

looks NFC enough to me to do as a drive-by in this PR. seems fine.

https://github.com/llvm/llvm-project/pull/136705