================
@@ -287,32 +287,43 @@ def CIR_BoolType :
def CIR_FuncType : CIR_Type<"Func", "func"> {
let summary = "CIR function type";
let description = [{
- The `!cir.func` is a function type. It consists of a single return type, a
- list of parameter types and can optionally be variadic.
+ The `!cir.func` is a function type. It consists of an optional return type,
+ a list of parameter types and can optionally be variadic.
Example:
```mlir
- !cir.func<!bool ()>
- !cir.func<!s32i (!s8i, !s8i)>
- !cir.func<!s32i (!s32i, ...)>
+ !cir.func<()>
+ !cir.func<() -> bool>
+ !cir.func<(!s8i, !s8i)>
+ !cir.func<(!s8i, !s8i) -> !s32i>
+ !cir.func<(!s32i, ...) -> !s32i>
```
}];
let parameters = (ins ArrayRefParameter<"mlir::Type">:$inputs,
- "mlir::Type":$returnType, "bool":$varArg);
+ "mlir::Type":$optionalReturnType, "bool":$varArg);
+ // Use a custom parser to handle the argument types and optional return
----------------
erichkeane wrote:
```suggestion
// Use a custom parser to handle the argument types and optional return.
```
https://github.com/llvm/llvm-project/pull/128787
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