[llvm] [IR] Add initial support for the byte type (PR #178666)

[Pedro Lobo via llvm-commits]

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@@ -637,6 +637,11 @@ class DataLayout {
   /// This is always at least as good as the ABI alignment.
   LLVM_ABI Align getPrefTypeAlign(Type *Ty) const;
 
+  /// Returns a byte type with size at least as big as that of a
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pedroclobo wrote:

Yes, it should read "with the same size of".

https://github.com/llvm/llvm-project/pull/178666