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>
---
 .../issue-88043-bb-does-not-have-terminator.rs     | 35 ++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 src/test/ui/codegen/issue-88043-bb-does-not-have-terminator.rs

(limited to 'src/test/ui/codegen/issue-88043-bb-does-not-have-terminator.rs')

diff --git a/src/test/ui/codegen/issue-88043-bb-does-not-have-terminator.rs b/src/test/ui/codegen/issue-88043-bb-does-not-have-terminator.rs
new file mode 100644
index 000000000..38dfca347
--- /dev/null
+++ b/src/test/ui/codegen/issue-88043-bb-does-not-have-terminator.rs
@@ -0,0 +1,35 @@
+// build-pass
+// compile-flags: -Copt-level=0
+
+// Regression test for #88043: LLVM crash when the RemoveZsts mir-opt pass is enabled.
+// We should not see the error:
+// `Basic Block in function '_ZN4main10take_until17h0067b8a660429bc9E' does not have terminator!`
+
+fn bump() -> Option<usize> {
+    unreachable!()
+}
+
+fn take_until(terminate: impl Fn() -> bool) {
+    loop {
+        if terminate() {
+            return;
+        } else {
+            bump();
+        }
+    }
+}
+
+// CHECK-LABEL: @main
+fn main() {
+    take_until(|| true);
+    f(None);
+}
+
+fn f(_a: Option<String>) -> Option<u32> {
+    loop {
+        g();
+        ()
+    }
+}
+
+fn g() -> Option<u32> { None }
-- 
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