From 1376c5a617be5c25655d0d7cb63e3beaa5a6e026 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 14:20:39 +0200
Subject: Merging upstream version 1.70.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 tests/codegen/issues/issue-75546.rs | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 tests/codegen/issues/issue-75546.rs

(limited to 'tests/codegen/issues/issue-75546.rs')

diff --git a/tests/codegen/issues/issue-75546.rs b/tests/codegen/issues/issue-75546.rs
new file mode 100644
index 000000000..470a9e040
--- /dev/null
+++ b/tests/codegen/issues/issue-75546.rs
@@ -0,0 +1,15 @@
+// compile-flags: -O
+#![crate_type = "lib"]
+
+// Test that LLVM can eliminate the impossible `i == 0` check.
+
+// CHECK-LABEL: @issue_75546
+#[no_mangle]
+pub fn issue_75546() {
+    let mut i = 1u32;
+    while i < u32::MAX {
+        // CHECK-NOT: panic
+        if i == 0 { panic!(); }
+        i += 1;
+    }
+}
-- 
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