[llvm] [AMDGPU] Vectorize i8 Shuffles (PR #95840)

[Matt Arsenault via llvm-commits]

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@@ -306,6 +306,23 @@ bool GCNTTIImpl::hasBranchDivergence(const Function *F) const {
   return !F || !ST->isSingleLaneExecution(*F);
 }
 
+unsigned GCNTTIImpl::getNumberOfParts(Type *Tp) {
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arsenm wrote:

This looks the same as #91016? 

https://github.com/llvm/llvm-project/pull/95840