add error message when `#[naked]` is used with `#[test]`

2 files changed, 74 insertions, 0 deletions

diff --git a/tests/ui/asm/naked-functions-testattrs.rs b/tests/ui/asm/naked-functions-testattrs.rs
new file mode 100644
index 00000000000..593cf3ad459
--- /dev/null
+++ b/tests/ui/asm/naked-functions-testattrs.rs
@@ -0,0 +1,39 @@
+//@ needs-asm-support
+//@ compile-flags: --test
+
+#![allow(undefined_naked_function_abi)]
+#![feature(naked_functions)]
+#![feature(test)]
+#![crate_type = "lib"]
+
+use std::arch::asm;
+
+#[test]
+#[naked]
+//~^ ERROR [E0798]
+fn test_naked() {
+    unsafe { asm!("", options(noreturn)) };
+}
+
+#[should_panic]
+#[test]
+#[naked]
+//~^ ERROR [E0798]
+fn test_naked_should_panic() {
+    unsafe { asm!("", options(noreturn)) };
+}
+
+#[ignore]
+#[test]
+#[naked]
+//~^ ERROR [E0798]
+fn test_naked_ignore() {
+    unsafe { asm!("", options(noreturn)) };
+}
+
+#[bench]
+#[naked]
+//~^ ERROR [E0798]
+fn bench_naked() {
+    unsafe { asm!("", options(noreturn)) };
+}
diff --git a/tests/ui/asm/naked-functions-testattrs.stderr b/tests/ui/asm/naked-functions-testattrs.stderr
new file mode 100644
index 00000000000..87647b0ca37
--- /dev/null
+++ b/tests/ui/asm/naked-functions-testattrs.stderr
@@ -0,0 +1,35 @@
+error[E0798]: cannot use `#[naked]` with testing attributes
+  --> $DIR/naked-functions-testattrs.rs:12:1
+   |
+LL | #[test]
+   | ------- function marked with testing attribute here
+LL | #[naked]
+   | ^^^^^^^^ `#[naked]` is incompatible with testing attributes
+
+error[E0798]: cannot use `#[naked]` with testing attributes
+  --> $DIR/naked-functions-testattrs.rs:20:1
+   |
+LL | #[test]
+   | ------- function marked with testing attribute here
+LL | #[naked]
+   | ^^^^^^^^ `#[naked]` is incompatible with testing attributes
+
+error[E0798]: cannot use `#[naked]` with testing attributes
+  --> $DIR/naked-functions-testattrs.rs:28:1
+   |
+LL | #[test]
+   | ------- function marked with testing attribute here
+LL | #[naked]
+   | ^^^^^^^^ `#[naked]` is incompatible with testing attributes
+
+error[E0798]: cannot use `#[naked]` with testing attributes
+  --> $DIR/naked-functions-testattrs.rs:35:1
+   |
+LL | #[bench]
+   | -------- function marked with testing attribute here
+LL | #[naked]
+   | ^^^^^^^^ `#[naked]` is incompatible with testing attributes
+
+error: aborting due to 4 previous errors
+
+For more information about this error, try `rustc --explain E0798`.