================
@@ -400,13 +400,126 @@ def VoidPtr : Type<
"cir::VoidType::get($_builder.getContext()))"> {
}
+//===----------------------------------------------------------------------===//
+// StructType
+//
+// The base type for all RecordDecls.
+//===----------------------------------------------------------------------===//
+
+def CIR_StructType : CIR_Type<"Struct", "struct",
+ [
+ DeclareTypeInterfaceMethods<DataLayoutTypeInterface>,
+ MutableType,
+ ]> {
+ let summary = "CIR struct type";
+ let description = [{
+ Each unique clang::RecordDecl is mapped to a `cir.struct` and any object in
+ C/C++ that has a struct type will have a `cir.struct` in CIR.
+
+ There are three possible formats for this type:
+
+ - Identified and complete structs: unique name and a known body.
+ - Identified and incomplete structs: unique name and unknown body.
+ - Anonymous structs: no name and a known body.
+
+ Identified structs are uniqued by their name, and anonymous structs are
+ uniqued by their body. This means that two anonymous structs with the same
----------------
andykaylor wrote:
This may just be stating an axiomatic fact. In practice, we seem to be giving
anonymous structures a name.
https://godbolt.org/z/jfc7bT4qd
But the name isn't required by CIR, so the definition is telling you what
happens if you don't have it.
https://github.com/llvm/llvm-project/pull/135105
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