Add test case for #109567

1 files changed, 15 insertions, 0 deletions

diff --git a/tests/ui/numbers-arithmetic/apfloat-modulo-wrong.rs b/tests/ui/numbers-arithmetic/apfloat-modulo-wrong.rs
new file mode 100644
index 00000000000..64ff1f8b1d2
--- /dev/null
+++ b/tests/ui/numbers-arithmetic/apfloat-modulo-wrong.rs
@@ -0,0 +1,15 @@
+// run-pass
+// check-run-results
+// regression test for issue #109567
+
+fn f() -> f64 {
+    std::hint::black_box(-1.0) % std::hint::black_box(-1.0)
+}
+
+const G: f64 = -1.0 % -1.0;
+
+pub fn main() {
+    assert_eq!(-1, G.signum() as i32);
+    assert_eq!((-0.0_f64).to_bits(), G.to_bits());
+    assert_eq!(f().signum(), G.signum());
+}