diff --git a/tests/crashes/124583.rs b/tests/crashes/124583.rs
deleted file mode 100644
index ffd9d7521add2..0000000000000
--- a/tests/crashes/124583.rs
+++ /dev/null
@@ -1,5 +0,0 @@
-//@ known-bug: rust-lang/rust#124583
-
-fn main() {
-    let _ = -(-0.0f16);
-}
diff --git a/tests/ui/numbers-arithmetic/f16-f128-lit.rs b/tests/ui/numbers-arithmetic/f16-f128-lit.rs
index 762436edb1663..7fd20d91d8248 100644
--- a/tests/ui/numbers-arithmetic/f16-f128-lit.rs
+++ b/tests/ui/numbers-arithmetic/f16-f128-lit.rs
@@ -1,3 +1,5 @@
+// Make sure negation happens correctly. Also included:
+// issue: rust-lang/rust#124583
 //@ run-pass
 
 #![feature(f16)]
@@ -8,9 +10,11 @@ fn main() {
     assert_eq!((-0.0_f16).to_bits(), 0x8000);
     assert_eq!(10.0_f16.to_bits(), 0x4900);
     assert_eq!((-10.0_f16).to_bits(), 0xC900);
+    assert_eq!((-(-0.0f16)).to_bits(), 0x0000);
 
     assert_eq!(0.0_f128.to_bits(), 0x0000_0000_0000_0000_0000_0000_0000_0000);
     assert_eq!((-0.0_f128).to_bits(), 0x8000_0000_0000_0000_0000_0000_0000_0000);
     assert_eq!(10.0_f128.to_bits(), 0x4002_4000_0000_0000_0000_0000_0000_0000);
     assert_eq!((-10.0_f128).to_bits(), 0xC002_4000_0000_0000_0000_0000_0000_0000);
+    assert_eq!((-(-0.0f128)).to_bits(), 0x0000_0000_0000_0000_0000_0000_0000_0000);
 }