From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 14:02:58 +0200
Subject: Adding upstream version 1.64.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 src/test/codegen/bool-cmp.rs | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 src/test/codegen/bool-cmp.rs

(limited to 'src/test/codegen/bool-cmp.rs')

diff --git a/src/test/codegen/bool-cmp.rs b/src/test/codegen/bool-cmp.rs
new file mode 100644
index 000000000..5090f7c37
--- /dev/null
+++ b/src/test/codegen/bool-cmp.rs
@@ -0,0 +1,18 @@
+// This is a test for optimal Ord trait implementation for bool.
+// See <https://github.com/rust-lang/rust/issues/66780> for more info.
+
+// compile-flags: -C opt-level=3
+
+#![crate_type = "lib"]
+
+use std::cmp::Ordering;
+
+// CHECK-LABEL: @cmp_bool
+#[no_mangle]
+pub fn cmp_bool(a: bool, b: bool) -> Ordering {
+// LLVM 10 produces (zext a) + (sext b), but the final lowering is (zext a) - (zext b).
+// CHECK: zext i1
+// CHECK: {{z|s}}ext i1
+// CHECK: {{sub|add}} nsw
+    a.cmp(&b)
+}
-- 
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