Add regression test

2 files changed, 39 insertions, 0 deletions

diff --git a/tests/mir-opt/issue_104451_unwindable_intrinsics.main.AbortUnwindingCalls.after.mir b/tests/mir-opt/issue_104451_unwindable_intrinsics.main.AbortUnwindingCalls.after.mir
new file mode 100644
index 00000000000..f50c0eb4788
--- /dev/null
+++ b/tests/mir-opt/issue_104451_unwindable_intrinsics.main.AbortUnwindingCalls.after.mir
@@ -0,0 +1,25 @@
+// MIR for `main` after AbortUnwindingCalls
+
+fn main() -> () {
+    let mut _0: ();                      // return place in scope 0 at $DIR/issue_104451_unwindable_intrinsics.rs:+0:11: +0:11
+    let mut _1: !;                       // in scope 0 at $DIR/issue_104451_unwindable_intrinsics.rs:+2:9: +2:62
+    let mut _2: ();                      // in scope 0 at $DIR/issue_104451_unwindable_intrinsics.rs:+2:45: +2:47
+    scope 1 {
+    }
+
+    bb0: {
+        StorageLive(_1);                 // scope 1 at $DIR/issue_104451_unwindable_intrinsics.rs:+2:9: +2:62
+        StorageLive(_2);                 // scope 1 at $DIR/issue_104451_unwindable_intrinsics.rs:+2:45: +2:47
+        _2 = ();                         // scope 1 at $DIR/issue_104451_unwindable_intrinsics.rs:+2:45: +2:47
+        _1 = const_eval_select::<(), fn() -> ! {ow_ct}, fn() -> ! {ow_ct}, !>(move _2, ow_ct, ow_ct); // scope 1 at $DIR/issue_104451_unwindable_intrinsics.rs:+2:9: +2:62
+                                         // mir::Constant
+                                         // + span: $DIR/issue_104451_unwindable_intrinsics.rs:8:9: 8:44
+                                         // + literal: Const { ty: unsafe extern "rust-intrinsic" fn((), fn() -> ! {ow_ct}, fn() -> ! {ow_ct}) -> ! {const_eval_select::<(), fn() -> ! {ow_ct}, fn() -> ! {ow_ct}, !>}, val: Value(<ZST>) }
+                                         // mir::Constant
+                                         // + span: $DIR/issue_104451_unwindable_intrinsics.rs:8:49: 8:54
+                                         // + literal: Const { ty: fn() -> ! {ow_ct}, val: Value(<ZST>) }
+                                         // mir::Constant
+                                         // + span: $DIR/issue_104451_unwindable_intrinsics.rs:8:56: 8:61
+                                         // + literal: Const { ty: fn() -> ! {ow_ct}, val: Value(<ZST>) }
+    }
+}
diff --git a/tests/mir-opt/issue_104451_unwindable_intrinsics.rs b/tests/mir-opt/issue_104451_unwindable_intrinsics.rs
new file mode 100644
index 00000000000..9babd4aaed5
--- /dev/null
+++ b/tests/mir-opt/issue_104451_unwindable_intrinsics.rs
@@ -0,0 +1,14 @@
+// Check that `UnwindAction::Unreachable` is not generated for unwindable intrinsics.
+// ignore-wasm32 compiled with panic=abort by default
+#![feature(core_intrinsics)]
+
+// EMIT_MIR issue_104451_unwindable_intrinsics.main.AbortUnwindingCalls.after.mir
+fn main() {
+    unsafe {
+        core::intrinsics::const_eval_select((), ow_ct, ow_ct)
+    }
+}
+
+const fn ow_ct() -> ! {
+    panic!();
+}