From ee05842b01af65dc333a073b093b24e69439e6df Mon Sep 17 00:00:00 2001
From: Samy <samy@ap4.sh>
Date: Sun, 5 Jul 2026 19:07:05 +0200
Subject: [PATCH] Add regression test for builtin attr macro values

---
 .../builtin-attr-macro-value-issue-145922.rs  | 34 +++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 tests/ui/attributes/builtin-attr-macro-value-issue-145922.rs

diff --git a/tests/ui/attributes/builtin-attr-macro-value-issue-145922.rs b/tests/ui/attributes/builtin-attr-macro-value-issue-145922.rs
new file mode 100644
index 0000000000000..a7314188cba3d
--- /dev/null
+++ b/tests/ui/attributes/builtin-attr-macro-value-issue-145922.rs
@@ -0,0 +1,34 @@
+//@ check-pass
+#![allow(unused_attributes, unused_macros)]
+
+// Regression test for #145922.
+// This used to create a delayed ICE while parsing builtin attributes.
+#[crate_type = concat!("my", "crate")]
+macro_rules! foo {
+    () => {
+        32
+    };
+}
+
+#[recursion_limit = concat!("1", "2")]
+macro_rules! baz {
+    () => {
+        32
+    };
+}
+
+#[type_length_limit = concat!("1", "2")]
+macro_rules! qux {
+    () => {
+        32
+    };
+}
+
+#[windows_subsystem = concat!("cons", "ole")]
+macro_rules! bar {
+    () => {
+        32
+    };
+}
+
+fn main() {}