[llvm] Add the 'initializes' attribute langref and support (PR #84803)

[Nikita Popov via llvm-commits]

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@@ -191,6 +192,44 @@ Attribute Attribute::get(LLVMContext &Context, Attribute::AttrKind Kind,
   return Attribute(PA);
 }
 
+Attribute Attribute::get(LLVMContext &Context, Attribute::AttrKind Kind,
+                         ArrayRef<ConstantRange> Val) {
+  assert(Attribute::isConstantRangeListAttrKind(Kind) &&
+         "Not a ConstantRangeList attribute");
+  LLVMContextImpl *pImpl = Context.pImpl;
+  FoldingSetNodeID ID;
+  ID.AddInteger(Kind);
+  ID.AddInteger(Val.size());
+  ID.AddInteger(Val[0].getBitWidth());
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nikic wrote:

Same here.

https://github.com/llvm/llvm-project/pull/84803