Add const_eval_select intrinsic

1 files changed, 17 insertions, 0 deletions

diff --git a/src/test/codegen/intrinsics/const_eval_select.rs b/src/test/codegen/intrinsics/const_eval_select.rs
new file mode 100644
index 00000000000..84777cac7c3
--- /dev/null
+++ b/src/test/codegen/intrinsics/const_eval_select.rs
@@ -0,0 +1,17 @@
+// compile-flags: -C no-prepopulate-passes
+
+#![crate_type = "lib"]
+#![feature(const_eval_select)]
+
+use std::intrinsics::const_eval_select;
+
+const fn foo(_: (i32,)) -> i32 { 1 }
+
+#[no_mangle]
+pub fn hi((n,): (i32,)) -> i32 { n }
+
+#[no_mangle]
+pub unsafe fn hey() {
+    // CHECK: call i32 @hi(i32
+    const_eval_select((42,), foo, hi);
+}