Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

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

1 files changed, 27 insertions, 0 deletions

diff --git a/src/test/ui/intrinsics/const-eval-select.rs b/src/test/ui/intrinsics/const-eval-select.rs
new file mode 100644
index 000000000..9ff20d3fb
--- /dev/null
+++ b/src/test/ui/intrinsics/const-eval-select.rs
@@ -0,0 +1,27 @@
+// run-pass
+
+#![feature(const_eval_select)]
+#![feature(core_intrinsics)]
+
+use std::intrinsics::const_eval_select;
+
+const fn yes() -> bool {
+    true
+}
+
+fn no() -> bool {
+    false
+}
+
+// not a sound use case; testing only
+const fn is_const_eval() -> bool {
+    unsafe { const_eval_select((), yes, no) }
+}
+
+fn main() {
+    const YES: bool = is_const_eval();
+    let no = is_const_eval();
+
+    assert_eq!(true, YES);
+    assert_eq!(false, no);
+}