[llvm] [PreISelIntrinsicLowering] Zext/trunc count parameter as necessary for memset_pattern16 emission (PR #129239)

[Alex Bradbury via llvm-commits]

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@@ -394,11 +394,12 @@ bool PreISelIntrinsicLowering::expandMemIntrinsicUses(Function &F) const {
       Module *M = Memset->getModule();
       const DataLayout &DL = Memset->getDataLayout();
 
+      Type *DestPtrTy = Memset->getRawDest()->getType();
+      Type *IntIdxTy = DL.getIndexType(DestPtrTy);
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asb wrote:

Apologies for missing this, now updated.

https://github.com/llvm/llvm-project/pull/129239