add #[hdl(cmp_eq)] to implement HdlPartialEq automatically

crates/fayalite-proc-macros-impl/src/hdl_bundle.rs

@@ -83,6 +83,7 @@ impl ParsedBundle {
             custom_bounds,
             no_static: _,
             no_runtime_generics: _,
+            cmp_eq: _,
         } = options.body;
         let mut fields = match fields {
             syn::Fields::Named(fields) => fields,
@@ -437,6 +438,7 @@ impl ToTokens for ParsedBundle {
             custom_bounds: _,
             no_static,
             no_runtime_generics,
+            cmp_eq,
         } = &options.body;
         let target = get_target(target, ident);
         let mut item_attrs = attrs.clone();
@@ -765,6 +767,69 @@ impl ToTokens for ParsedBundle {
             }
         }
         .to_tokens(tokens);
+        if let Some((cmp_eq,)) = cmp_eq {
+            let mut where_clause =
+                Generics::from(generics)
+                    .where_clause
+                    .unwrap_or_else(|| syn::WhereClause {
+                        where_token: Token![where](span),
+                        predicates: Punctuated::new(),
+                    });
+            let mut fields_cmp_eq = vec![];
+            let mut fields_cmp_ne = vec![];
+            for field in fields.named() {
+                let field_ident = field.ident();
+                let field_ty = field.ty();
+                where_clause
+                    .predicates
+                    .push(parse_quote_spanned! {cmp_eq.span=>
+                        #field_ty: ::fayalite::expr::ops::ExprPartialEq<#field_ty>
+                    });
+                fields_cmp_eq.push(quote_spanned! {span=>
+                    ::fayalite::expr::ops::ExprPartialEq::cmp_eq(__lhs.#field_ident, __rhs.#field_ident)
+                });
+                fields_cmp_ne.push(quote_spanned! {span=>
+                    ::fayalite::expr::ops::ExprPartialEq::cmp_ne(__lhs.#field_ident, __rhs.#field_ident)
+                });
+            }
+            let cmp_eq_body;
+            let cmp_ne_body;
+            if fields_len == 0 {
+                cmp_eq_body = quote_spanned! {span=>
+                    ::fayalite::expr::ToExpr::to_expr(&true)
+                };
+                cmp_ne_body = quote_spanned! {span=>
+                    ::fayalite::expr::ToExpr::to_expr(&false)
+                };
+            } else {
+                cmp_eq_body = quote_spanned! {span=>
+                    #(#fields_cmp_eq)&*
+                };
+                cmp_ne_body = quote_spanned! {span=>
+                    #(#fields_cmp_ne)|*
+                };
+            };
+            quote_spanned! {span=>
+                #[automatically_derived]
+                impl #impl_generics ::fayalite::expr::ops::ExprPartialEq<Self> for #target #type_generics
+                #where_clause
+                {
+                    fn cmp_eq(
+                        __lhs: ::fayalite::expr::Expr<Self>,
+                        __rhs: ::fayalite::expr::Expr<Self>,
+                    ) -> ::fayalite::expr::Expr<::fayalite::int::Bool> {
+                        #cmp_eq_body
+                    }
+                    fn cmp_ne(
+                        __lhs: ::fayalite::expr::Expr<Self>,
+                        __rhs: ::fayalite::expr::Expr<Self>,
+                    ) -> ::fayalite::expr::Expr<::fayalite::int::Bool> {
+                        #cmp_ne_body
+                    }
+                }
+            }
+            .to_tokens(tokens);
+        }
         if let (None, MaybeParsed::Parsed(generics)) = (no_static, &self.generics) {
             let static_generics = generics.clone().for_static_type();
             let (static_impl_generics, static_type_generics, static_where_clause) =

crates/fayalite-proc-macros-impl/src/hdl_enum.rs

@@ -155,7 +155,11 @@ impl ParsedEnum {
             custom_bounds,
             no_static: _,
             no_runtime_generics: _,
+            cmp_eq,
         } = options.body;
+        if let Some((cmp_eq,)) = cmp_eq {
+            errors.error(cmp_eq, "#[hdl(cmp_eq)] is not yet implemented for enums");
+        }
         attrs.retain(|attr| {
             if attr.path().is_ident("repr") {
                 errors.error(attr, "#[repr] is not supported on #[hdl] enums");
@@ -211,6 +215,7 @@ impl ToTokens for ParsedEnum {
             custom_bounds: _,
             no_static,
             no_runtime_generics,
+            cmp_eq: _, // TODO: implement cmp_eq for enums
         } = &options.body;
         let target = get_target(target, ident);
         let mut struct_attrs = attrs.clone();

crates/fayalite-proc-macros-impl/src/hdl_type_alias.rs

@@ -49,10 +49,14 @@ impl ParsedTypeAlias {
             custom_bounds,
             no_static,
             no_runtime_generics: _,
+            cmp_eq,
         } = options.body;
         if let Some((no_static,)) = no_static {
             errors.error(no_static, "no_static is not valid on type aliases");
         }
+        if let Some((cmp_eq,)) = cmp_eq {
+            errors.error(cmp_eq, "cmp_eq is not valid on type aliases");
+        }
         let generics = if custom_bounds.is_some() {
             MaybeParsed::Unrecognized(generics)
         } else if let Some(generics) = errors.ok(ParsedGenerics::parse(&mut generics)) {
@@ -95,6 +99,7 @@ impl ToTokens for ParsedTypeAlias {
             custom_bounds: _,
             no_static: _,
             no_runtime_generics,
+            cmp_eq: _,
         } = &options.body;
         let target = get_target(target, ident);
         let mut type_attrs = attrs.clone();

crates/fayalite-proc-macros-impl/src/hdl_type_common.rs

@@ -26,6 +26,7 @@ crate::options! {
         CustomBounds(custom_bounds),
         NoStatic(no_static),
         NoRuntimeGenerics(no_runtime_generics),
+        CmpEq(cmp_eq),
     }
 }
 

crates/fayalite-proc-macros-impl/src/lib.rs

@@ -72,6 +72,7 @@ mod kw {
     custom_keyword!(cfg);
     custom_keyword!(cfg_attr);
     custom_keyword!(clock_domain);
+    custom_keyword!(cmp_eq);
     custom_keyword!(connect_inexact);
     custom_keyword!(custom_bounds);
     custom_keyword!(flip);

crates/fayalite/src/array.rs

@@ -2,8 +2,11 @@
 // See Notices.txt for copyright information
 
 use crate::{
-    expr::{ops::ArrayIndex, Expr, ToExpr},
+    expr::{
-    int::{DynSize, KnownSize, Size, SizeType, DYN_SIZE},
+        ops::{ArrayIndex, ArrayLiteral, ExprPartialEq},
+        CastToBits, Expr, HdlPartialEq, ReduceBits, ToExpr,
+    },
+    int::{Bool, DynSize, KnownSize, Size, SizeType, DYN_SIZE},
     intern::{Intern, Interned, LazyInterned},
     module::transform::visit::{Fold, Folder, Visit, Visitor},
     source_location::SourceLocation,
@@ -218,3 +221,36 @@ impl<T: Type, L: SizeType> Index<L> for ArrayWithoutLen<T> {
         Interned::into_inner(Intern::intern_sized(ArrayType::new(self.element, len)))
     }
 }
+
+impl<Lhs: Type, Rhs: Type, Len: Size> ExprPartialEq<ArrayType<Rhs, Len>> for ArrayType<Lhs, Len>
+where
+    Lhs: ExprPartialEq<Rhs>,
+{
+    fn cmp_eq(lhs: Expr<Self>, rhs: Expr<ArrayType<Rhs, Len>>) -> Expr<Bool> {
+        let lhs_ty = Expr::ty(lhs);
+        let rhs_ty = Expr::ty(rhs);
+        assert_eq!(lhs_ty.len(), rhs_ty.len());
+        ArrayLiteral::<Bool, DynSize>::new(
+            Bool,
+            (0..lhs_ty.len())
+                .map(|i| Expr::canonical(lhs[i].cmp_eq(rhs[i])))
+                .collect(),
+        )
+        .cast_to_bits()
+        .all_one_bits()
+    }
+
+    fn cmp_ne(lhs: Expr<Self>, rhs: Expr<ArrayType<Rhs, Len>>) -> Expr<Bool> {
+        let lhs_ty = Expr::ty(lhs);
+        let rhs_ty = Expr::ty(rhs);
+        assert_eq!(lhs_ty.len(), rhs_ty.len());
+        ArrayLiteral::<Bool, DynSize>::new(
+            Bool,
+            (0..lhs_ty.len())
+                .map(|i| Expr::canonical(lhs[i].cmp_ne(rhs[i])))
+                .collect(),
+        )
+        .cast_to_bits()
+        .any_one_bits()
+    }
+}

crates/fayalite/src/bundle.rs

@@ -2,7 +2,11 @@
 // See Notices.txt for copyright information
 
 use crate::{
-    expr::{ops::BundleLiteral, Expr, ToExpr},
+    expr::{
+        ops::{ArrayLiteral, BundleLiteral, ExprPartialEq},
+        CastToBits, Expr, ReduceBits, ToExpr,
+    },
+    int::{Bool, DynSize},
     intern::{Intern, Interned},
     sim::{SimValue, ToSimValue},
     source_location::SourceLocation,
@@ -325,7 +329,19 @@ macro_rules! impl_tuple_builder_fields {
 }
 
 macro_rules! impl_tuples {
-    ([$({#[num = $num:literal, field = $field:ident, ty = $ty_var:ident: $Ty:ident] $var:ident: $T:ident})*] []) => {
+    (
+        [$({
+            #[
+                num = $num:tt,
+                field = $field:ident,
+                ty = $ty_var:ident: $Ty:ident,
+                lhs = $lhs_var:ident: $Lhs:ident,
+                rhs = $rhs_var:ident: $Rhs:ident
+            ]
+            $var:ident: $T:ident
+        })*]
+        []
+    ) => {
         impl_tuple_builder_fields! {
             {}
             [$({
@@ -498,6 +514,29 @@ macro_rules! impl_tuples {
                 Self::into_sim_value(*self, ty)
             }
         }
+        impl<$($Lhs: Type + ExprPartialEq<$Rhs>, $Rhs: Type,)*> ExprPartialEq<($($Rhs,)*)> for ($($Lhs,)*) {
+            fn cmp_eq(lhs: Expr<Self>, rhs: Expr<($($Rhs,)*)>) -> Expr<Bool> {
+                let ($($lhs_var,)*) = *lhs;
+                let ($($rhs_var,)*) = *rhs;
+                ArrayLiteral::<Bool, DynSize>::new(
+                    Bool,
+                    FromIterator::from_iter([$(Expr::canonical(ExprPartialEq::cmp_eq($lhs_var, $rhs_var)),)*]),
+                )
+                .cast_to_bits()
+                .all_one_bits()
+            }
+
+            fn cmp_ne(lhs: Expr<Self>, rhs: Expr<($($Rhs,)*)>) -> Expr<Bool> {
+                let ($($lhs_var,)*) = *lhs;
+                let ($($rhs_var,)*) = *rhs;
+                ArrayLiteral::<Bool, DynSize>::new(
+                    Bool,
+                    FromIterator::from_iter([$(Expr::canonical(ExprPartialEq::cmp_ne($lhs_var, $rhs_var)),)*]),
+                )
+                .cast_to_bits()
+                .any_one_bits()
+            }
+        }
     };
     ([$($lhs:tt)*] [$rhs_first:tt $($rhs:tt)*]) => {
         impl_tuples!([$($lhs)*] []);
@@ -507,18 +546,18 @@ macro_rules! impl_tuples {
 
 impl_tuples! {
     [] [
-        {#[num = 0, field = field_0, ty = ty0: Ty0] v0: T0}
+        {#[num = 0, field = field_0, ty = ty0: Ty0, lhs = lhs0: Lhs0, rhs = rhs0: Rhs0] v0: T0}
-        {#[num = 1, field = field_1, ty = ty1: Ty1] v1: T1}
+        {#[num = 1, field = field_1, ty = ty1: Ty1, lhs = lhs1: Lhs1, rhs = rhs1: Rhs1] v1: T1}
-        {#[num = 2, field = field_2, ty = ty2: Ty2] v2: T2}
+        {#[num = 2, field = field_2, ty = ty2: Ty2, lhs = lhs2: Lhs2, rhs = rhs2: Rhs2] v2: T2}
-        {#[num = 3, field = field_3, ty = ty3: Ty3] v3: T3}
+        {#[num = 3, field = field_3, ty = ty3: Ty3, lhs = lhs3: Lhs3, rhs = rhs3: Rhs3] v3: T3}
-        {#[num = 4, field = field_4, ty = ty4: Ty4] v4: T4}
+        {#[num = 4, field = field_4, ty = ty4: Ty4, lhs = lhs4: Lhs4, rhs = rhs4: Rhs4] v4: T4}
-        {#[num = 5, field = field_5, ty = ty5: Ty5] v5: T5}
+        {#[num = 5, field = field_5, ty = ty5: Ty5, lhs = lhs5: Lhs5, rhs = rhs5: Rhs5] v5: T5}
-        {#[num = 6, field = field_6, ty = ty6: Ty6] v6: T6}
+        {#[num = 6, field = field_6, ty = ty6: Ty6, lhs = lhs6: Lhs6, rhs = rhs6: Rhs6] v6: T6}
-        {#[num = 7, field = field_7, ty = ty7: Ty7] v7: T7}
+        {#[num = 7, field = field_7, ty = ty7: Ty7, lhs = lhs7: Lhs7, rhs = rhs7: Rhs7] v7: T7}
-        {#[num = 8, field = field_8, ty = ty8: Ty8] v8: T8}
+        {#[num = 8, field = field_8, ty = ty8: Ty8, lhs = lhs8: Lhs8, rhs = rhs8: Rhs8] v8: T8}
-        {#[num = 9, field = field_9, ty = ty9: Ty9] v9: T9}
+        {#[num = 9, field = field_9, ty = ty9: Ty9, lhs = lhs9: Lhs9, rhs = rhs9: Rhs9] v9: T9}
-        {#[num = 10, field = field_10, ty = ty10: Ty10] v10: T10}
+        {#[num = 10, field = field_10, ty = ty10: Ty10, lhs = lhs10: Lhs10, rhs = rhs10: Rhs10] v10: T10}
-        {#[num = 11, field = field_11, ty = ty11: Ty11] v11: T11}
+        {#[num = 11, field = field_11, ty = ty11: Ty11, lhs = lhs11: Lhs11, rhs = rhs11: Rhs11] v11: T11}
     ]
 }
 

crates/fayalite/src/enum_.rs

@@ -2,7 +2,10 @@
 // See Notices.txt for copyright information
 
 use crate::{
-    expr::{ops::VariantAccess, Expr, ToExpr},
+    expr::{
+        ops::{ExprPartialEq, VariantAccess},
+        Expr, ToExpr,
+    },
     hdl,
     int::Bool,
     intern::{Intern, Interned},
@@ -360,6 +363,60 @@ pub enum HdlOption<T: Type> {
     HdlSome(T),
 }
 
+impl<Lhs: Type + ExprPartialEq<Rhs>, Rhs: Type> ExprPartialEq<HdlOption<Rhs>> for HdlOption<Lhs> {
+    #[hdl]
+    fn cmp_eq(lhs: Expr<Self>, rhs: Expr<HdlOption<Rhs>>) -> Expr<Bool> {
+        #[hdl]
+        let cmp_eq = wire();
+        #[hdl]
+        match lhs {
+            HdlSome(lhs) =>
+            {
+                #[hdl]
+                match rhs {
+                    HdlSome(rhs) => connect(cmp_eq, ExprPartialEq::cmp_eq(lhs, rhs)),
+                    HdlNone => connect(cmp_eq, false),
+                }
+            }
+            HdlNone =>
+            {
+                #[hdl]
+                match rhs {
+                    HdlSome(_) => connect(cmp_eq, false),
+                    HdlNone => connect(cmp_eq, true),
+                }
+            }
+        }
+        cmp_eq
+    }
+
+    #[hdl]
+    fn cmp_ne(lhs: Expr<Self>, rhs: Expr<HdlOption<Rhs>>) -> Expr<Bool> {
+        #[hdl]
+        let cmp_ne = wire();
+        #[hdl]
+        match lhs {
+            HdlSome(lhs) =>
+            {
+                #[hdl]
+                match rhs {
+                    HdlSome(rhs) => connect(cmp_ne, ExprPartialEq::cmp_ne(lhs, rhs)),
+                    HdlNone => connect(cmp_ne, true),
+                }
+            }
+            HdlNone =>
+            {
+                #[hdl]
+                match rhs {
+                    HdlSome(_) => connect(cmp_ne, true),
+                    HdlNone => connect(cmp_ne, false),
+                }
+            }
+        }
+        cmp_ne
+    }
+}
+
 #[allow(non_snake_case)]
 pub fn HdlNone<T: StaticType>() -> Expr<HdlOption<T>> {
     HdlOption[T::TYPE].HdlNone()

crates/fayalite/tests/module.rs

@@ -380,18 +380,18 @@ circuit check_written_inside_both_if_else:
     };
 }
 
-#[hdl(outline_generated)]
+#[hdl(outline_generated, cmp_eq)]
 pub struct TestStruct<T> {
     pub a: T,
     pub b: UInt<8>,
 }
 
-#[hdl(outline_generated)]
+#[hdl(outline_generated, cmp_eq)]
 pub struct TestStruct2 {
     pub v: UInt<8>,
 }
 
-#[hdl(outline_generated)]
+#[hdl(outline_generated, cmp_eq)]
 pub struct TestStruct3 {}
 
 #[hdl_module(outline_generated)]
@@ -4425,3 +4425,125 @@ circuit check_let_patterns:
 ",
     };
 }
+
+#[hdl_module(outline_generated)]
+pub fn check_struct_cmp_eq() {
+    #[hdl]
+    let tuple_lhs: (UInt<1>, SInt<1>, Bool) = m.input();
+    #[hdl]
+    let tuple_rhs: (UInt<1>, SInt<1>, Bool) = m.input();
+    #[hdl]
+    let tuple_cmp_eq: Bool = m.output();
+    connect(tuple_cmp_eq, tuple_lhs.cmp_eq(tuple_rhs));
+    #[hdl]
+    let tuple_cmp_ne: Bool = m.output();
+    connect(tuple_cmp_ne, tuple_lhs.cmp_ne(tuple_rhs));
+
+    #[hdl]
+    let test_struct_lhs: TestStruct<SInt<8>> = m.input();
+    #[hdl]
+    let test_struct_rhs: TestStruct<SInt<8>> = m.input();
+    #[hdl]
+    let test_struct_cmp_eq: Bool = m.output();
+    connect(test_struct_cmp_eq, test_struct_lhs.cmp_eq(test_struct_rhs));
+    #[hdl]
+    let test_struct_cmp_ne: Bool = m.output();
+    connect(test_struct_cmp_ne, test_struct_lhs.cmp_ne(test_struct_rhs));
+
+    #[hdl]
+    let test_struct_2_lhs: TestStruct2 = m.input();
+    #[hdl]
+    let test_struct_2_rhs: TestStruct2 = m.input();
+    #[hdl]
+    let test_struct_2_cmp_eq: Bool = m.output();
+    connect(
+        test_struct_2_cmp_eq,
+        test_struct_2_lhs.cmp_eq(test_struct_2_rhs),
+    );
+    #[hdl]
+    let test_struct_2_cmp_ne: Bool = m.output();
+    connect(
+        test_struct_2_cmp_ne,
+        test_struct_2_lhs.cmp_ne(test_struct_2_rhs),
+    );
+
+    #[hdl]
+    let test_struct_3_lhs: TestStruct3 = m.input();
+    #[hdl]
+    let test_struct_3_rhs: TestStruct3 = m.input();
+    #[hdl]
+    let test_struct_3_cmp_eq: Bool = m.output();
+    connect(
+        test_struct_3_cmp_eq,
+        test_struct_3_lhs.cmp_eq(test_struct_3_rhs),
+    );
+    #[hdl]
+    let test_struct_3_cmp_ne: Bool = m.output();
+    connect(
+        test_struct_3_cmp_ne,
+        test_struct_3_lhs.cmp_ne(test_struct_3_rhs),
+    );
+}
+
+#[test]
+fn test_struct_cmp_eq() {
+    let _n = SourceLocation::normalize_files_for_tests();
+    let m = check_struct_cmp_eq();
+    dbg!(m);
+    #[rustfmt::skip] // work around https://github.com/rust-lang/rustfmt/issues/6161
+    assert_export_firrtl! {
+        m =>
+        "/test/check_struct_cmp_eq.fir": r"FIRRTL version 3.2.0
+circuit check_struct_cmp_eq:
+    type Ty0 = {`0`: UInt<1>, `1`: SInt<1>, `2`: UInt<1>}
+    type Ty1 = {a: SInt<8>, b: UInt<8>}
+    type Ty2 = {v: UInt<8>}
+    type Ty3 = {}
+    module check_struct_cmp_eq: @[module-XXXXXXXXXX.rs 1:1]
+        input tuple_lhs: Ty0 @[module-XXXXXXXXXX.rs 2:1]
+        input tuple_rhs: Ty0 @[module-XXXXXXXXXX.rs 3:1]
+        output tuple_cmp_eq: UInt<1> @[module-XXXXXXXXXX.rs 4:1]
+        output tuple_cmp_ne: UInt<1> @[module-XXXXXXXXXX.rs 6:1]
+        input test_struct_lhs: Ty1 @[module-XXXXXXXXXX.rs 8:1]
+        input test_struct_rhs: Ty1 @[module-XXXXXXXXXX.rs 9:1]
+        output test_struct_cmp_eq: UInt<1> @[module-XXXXXXXXXX.rs 10:1]
+        output test_struct_cmp_ne: UInt<1> @[module-XXXXXXXXXX.rs 12:1]
+        input test_struct_2_lhs: Ty2 @[module-XXXXXXXXXX.rs 14:1]
+        input test_struct_2_rhs: Ty2 @[module-XXXXXXXXXX.rs 15:1]
+        output test_struct_2_cmp_eq: UInt<1> @[module-XXXXXXXXXX.rs 16:1]
+        output test_struct_2_cmp_ne: UInt<1> @[module-XXXXXXXXXX.rs 18:1]
+        input test_struct_3_lhs: Ty3 @[module-XXXXXXXXXX.rs 20:1]
+        input test_struct_3_rhs: Ty3 @[module-XXXXXXXXXX.rs 21:1]
+        output test_struct_3_cmp_eq: UInt<1> @[module-XXXXXXXXXX.rs 22:1]
+        output test_struct_3_cmp_ne: UInt<1> @[module-XXXXXXXXXX.rs 24:1]
+        wire _array_literal_expr: UInt<1>[3]
+        connect _array_literal_expr[0], eq(tuple_lhs.`0`, tuple_rhs.`0`)
+        connect _array_literal_expr[1], eq(tuple_lhs.`1`, tuple_rhs.`1`)
+        connect _array_literal_expr[2], eq(tuple_lhs.`2`, tuple_rhs.`2`)
+        wire _cast_array_to_bits_expr: UInt<1>[3]
+        connect _cast_array_to_bits_expr[0], _array_literal_expr[0]
+        connect _cast_array_to_bits_expr[1], _array_literal_expr[1]
+        connect _cast_array_to_bits_expr[2], _array_literal_expr[2]
+        wire _cast_to_bits_expr: UInt<3>
+        connect _cast_to_bits_expr, cat(_cast_array_to_bits_expr[2], cat(_cast_array_to_bits_expr[1], _cast_array_to_bits_expr[0]))
+        connect tuple_cmp_eq, andr(_cast_to_bits_expr) @[module-XXXXXXXXXX.rs 5:1]
+        wire _array_literal_expr_1: UInt<1>[3]
+        connect _array_literal_expr_1[0], neq(tuple_lhs.`0`, tuple_rhs.`0`)
+        connect _array_literal_expr_1[1], neq(tuple_lhs.`1`, tuple_rhs.`1`)
+        connect _array_literal_expr_1[2], neq(tuple_lhs.`2`, tuple_rhs.`2`)
+        wire _cast_array_to_bits_expr_1: UInt<1>[3]
+        connect _cast_array_to_bits_expr_1[0], _array_literal_expr_1[0]
+        connect _cast_array_to_bits_expr_1[1], _array_literal_expr_1[1]
+        connect _cast_array_to_bits_expr_1[2], _array_literal_expr_1[2]
+        wire _cast_to_bits_expr_1: UInt<3>
+        connect _cast_to_bits_expr_1, cat(_cast_array_to_bits_expr_1[2], cat(_cast_array_to_bits_expr_1[1], _cast_array_to_bits_expr_1[0]))
+        connect tuple_cmp_ne, orr(_cast_to_bits_expr_1) @[module-XXXXXXXXXX.rs 7:1]
+        connect test_struct_cmp_eq, and(eq(test_struct_lhs.a, test_struct_rhs.a), eq(test_struct_lhs.b, test_struct_rhs.b)) @[module-XXXXXXXXXX.rs 11:1]
+        connect test_struct_cmp_ne, or(neq(test_struct_lhs.a, test_struct_rhs.a), neq(test_struct_lhs.b, test_struct_rhs.b)) @[module-XXXXXXXXXX.rs 13:1]
+        connect test_struct_2_cmp_eq, eq(test_struct_2_lhs.v, test_struct_2_rhs.v) @[module-XXXXXXXXXX.rs 17:1]
+        connect test_struct_2_cmp_ne, neq(test_struct_2_lhs.v, test_struct_2_rhs.v) @[module-XXXXXXXXXX.rs 19:1]
+        connect test_struct_3_cmp_eq, UInt<1>(0h1) @[module-XXXXXXXXXX.rs 23:1]
+        connect test_struct_3_cmp_ne, UInt<1>(0h0) @[module-XXXXXXXXXX.rs 25:1]
+",
+    };
+}