[llvm] [VectorCombine] Preserve scoped alias metadata (PR #153714)

[Nikita Popov via llvm-commits]

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@@ -1811,6 +1811,10 @@ bool VectorCombine::scalarizeLoadExtract(Instruction &I) {
   // erased in the correct order.
   Worklist.push(LI);
 
+  LLVMContext &ctx = LI->getContext();
+  unsigned aliasScopeKind = ctx.getMDKindID("alias.scope");
+  unsigned noAliasKind = ctx.getMDKindID("noalias");
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nikic wrote:

Use `MD_alias_scope` and `MD_noalias` instead.

https://github.com/llvm/llvm-project/pull/153714