Merging upstream version 1.68.2+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 52 insertions, 0 deletions

diff --git a/tests/ui/rfcs/rfc-2396-target_feature-11/check-pass.rs b/tests/ui/rfcs/rfc-2396-target_feature-11/check-pass.rs
new file mode 100644
index 000000000..e0842bfa4
--- /dev/null
+++ b/tests/ui/rfcs/rfc-2396-target_feature-11/check-pass.rs
@@ -0,0 +1,52 @@
+// Tests the new rules added by RFC 2396, including:
+// - applying `#[target_feature]` to safe functions is allowed
+// - calling functions with `#[target_feature]` is allowed in
+//   functions which have (at least) the same features
+// - calling functions with `#[target_feature]` is allowed in
+//   unsafe contexts
+// - functions with `#[target_feature]` can coerce to unsafe fn pointers
+
+// check-pass
+// only-x86_64
+// revisions: mir thir
+// [thir]compile-flags: -Z thir-unsafeck
+
+#![feature(target_feature_11)]
+
+#[target_feature(enable = "sse2")]
+const fn sse2() {}
+
+#[cfg(target_feature = "sse2")]
+const SSE2_ONLY: () = unsafe {
+    sse2();
+};
+
+#[target_feature(enable = "sse2")]
+fn also_sse2() {
+    sse2();
+}
+
+#[target_feature(enable = "sse2")]
+#[target_feature(enable = "avx")]
+fn sse2_and_avx() {
+    sse2();
+}
+
+struct Foo;
+
+impl Foo {
+    #[target_feature(enable = "sse2")]
+    fn sse2(&self) {
+        sse2();
+    }
+}
+
+fn main() {
+    if cfg!(target_feature = "sse2") {
+        unsafe {
+            sse2();
+            Foo.sse2();
+        }
+    }
+    let sse2_ptr: unsafe fn() = sse2;
+}