[gcc r16-8225] gccrs: Add additional test for wildcard special identifier

[Arthur Cohen]

https://gcc.gnu.org/g:c781e917ba8c31fff1ff87a4c691517d85e0d843

commit r16-8225-gc781e917ba8c31fff1ff87a4c691517d85e0d843
Author: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
Date:   Wed Mar 4 13:19:57 2026 +0100

    gccrs: Add additional test for wildcard special identifier
    
    gcc/testsuite/ChangeLog:
    
            * rust/compile/wildcard_items.rs: Move to...
            * rust/compile/wildcard_const.rs: ...here.
            * rust/compile/wildcard_enum.rs: New test.
            * rust/compile/wildcard_enum_variant.rs: New test.
            * rust/compile/wildcard_static.rs: New test.
            * rust/compile/wildcard_struct.rs: New test.
            * rust/compile/wildcard_variable.rs: New test.
    
    Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Diff:
---
 .../compile/{wildcard_items.rs => wildcard_const.rs}     |  0
 gcc/testsuite/rust/compile/wildcard_enum.rs              |  8 ++++++++
 gcc/testsuite/rust/compile/wildcard_enum_variant.rs      |  9 +++++++++
 gcc/testsuite/rust/compile/wildcard_static.rs            | 15 +++++++++++++++
 gcc/testsuite/rust/compile/wildcard_struct.rs            |  7 +++++++
 gcc/testsuite/rust/compile/wildcard_variable.rs          | 16 ++++++++++++++++
 6 files changed, 55 insertions(+)

diff --git a/gcc/testsuite/rust/compile/wildcard_items.rs b/gcc/testsuite/rust/compile/wildcard_const.rs
similarity index 100%
rename from gcc/testsuite/rust/compile/wildcard_items.rs
rename to gcc/testsuite/rust/compile/wildcard_const.rs
diff --git a/gcc/testsuite/rust/compile/wildcard_enum.rs b/gcc/testsuite/rust/compile/wildcard_enum.rs
new file mode 100644
index 000000000000..1d879323dce0
--- /dev/null
+++ b/gcc/testsuite/rust/compile/wildcard_enum.rs
@@ -0,0 +1,8 @@
+#![feature(no_core)]
+#![no_core]
+
+// { dg-error "expecting" "" { target *-*-* } .+1 }
+enum _ {
+    Variant1,
+    Variant2,
+}
diff --git a/gcc/testsuite/rust/compile/wildcard_enum_variant.rs b/gcc/testsuite/rust/compile/wildcard_enum_variant.rs
new file mode 100644
index 000000000000..d805b9ea5bc6
--- /dev/null
+++ b/gcc/testsuite/rust/compile/wildcard_enum_variant.rs
@@ -0,0 +1,9 @@
+#![feature(no_core)]
+#![no_core]
+
+enum Test {
+    // { dg-error "expecting" "" { target *-*-* } .+1 }
+    _,
+}
+
+
diff --git a/gcc/testsuite/rust/compile/wildcard_static.rs b/gcc/testsuite/rust/compile/wildcard_static.rs
new file mode 100644
index 000000000000..b065e3ab2675
--- /dev/null
+++ b/gcc/testsuite/rust/compile/wildcard_static.rs
@@ -0,0 +1,15 @@
+#![feature(lang_items)]
+#![feature(no_core)]
+#![no_core]
+
+macro_rules! assert {
+    ($cond:expr $(,)?) => {{ /* compiler built-in */ }};
+    ($cond:expr, $($arg:tt)+) => {{ /* compiler built-in */ }};
+}
+
+#[lang = "sized"]
+trait Sized {}
+
+// { dg-error "expecting" "" { target *-*-* } .+1 }
+static _ :() = assert!(true);
+
diff --git a/gcc/testsuite/rust/compile/wildcard_struct.rs b/gcc/testsuite/rust/compile/wildcard_struct.rs
new file mode 100644
index 000000000000..9871625029f3
--- /dev/null
+++ b/gcc/testsuite/rust/compile/wildcard_struct.rs
@@ -0,0 +1,7 @@
+#![feature(no_core)]
+#![no_core]
+
+// { dg-error "expecting" "" { target *-*-* } .+1 }
+struct _ {
+    a : i32,
+}
diff --git a/gcc/testsuite/rust/compile/wildcard_variable.rs b/gcc/testsuite/rust/compile/wildcard_variable.rs
new file mode 100644
index 000000000000..616642d9dc78
--- /dev/null
+++ b/gcc/testsuite/rust/compile/wildcard_variable.rs
@@ -0,0 +1,16 @@
+#![feature(lang_items)]
+#![feature(no_core)]
+#![no_core]
+
+macro_rules! assert {
+    ($cond:expr $(,)?) => {{ /* compiler built-in */ }};
+    ($cond:expr, $($arg:tt)+) => {{ /* compiler built-in */ }};
+}
+
+#[lang = "sized"]
+trait Sized {}
+
+fn _test() {
+    let _: () = assert!(true);
+    let _: () = assert!(true);
+}