Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 12 insertions, 0 deletions

diff --git a/src/test/ui/consts/const-eval/infinite_loop.rs b/src/test/ui/consts/const-eval/infinite_loop.rs
new file mode 100644
index 000000000..14a573ccf
--- /dev/null
+++ b/src/test/ui/consts/const-eval/infinite_loop.rs
@@ -0,0 +1,12 @@
+fn main() {
+    // Tests the Collatz conjecture with an incorrect base case (0 instead of 1).
+    // The value of `n` will loop indefinitely (4 - 2 - 1 - 4).
+    let _ = [(); {
+        let mut n = 113383; // #20 in https://oeis.org/A006884
+        while n != 0 {
+            n = if n % 2 == 0 { n/2 } else { 3*n + 1 };
+            //~^ ERROR evaluation of constant value failed
+        }
+        n
+    }];
+}