Check more constant forms in float_cmp

Author: Jarcho

clippy_lints/src/operators/float_cmp.rs

@@ -86,13 +86,19 @@ fn get_lint_and_message(is_local: bool, is_comparing_arrays: bool) -> (&'static
 fn is_allowed(val: &Constant<'_>) -> bool {
     match val {
         // FIXME(f16_f128): add when equality check is available on all platforms
+        Constant::Ref(val) => is_allowed(val),
         &Constant::F32(f) => f == 0.0 || f.is_infinite(),
         &Constant::F64(f) => f == 0.0 || f.is_infinite(),
-        Constant::Vec(vec) => vec.iter().all(|f| match f {
-            Constant::F32(f) => *f == 0.0 || (*f).is_infinite(),
-            Constant::F64(f) => *f == 0.0 || (*f).is_infinite(),
+        Constant::Vec(vec) => vec.iter().all(|f| match *f {
+            Constant::F32(f) => f == 0.0 || f.is_infinite(),
+            Constant::F64(f) => f == 0.0 || f.is_infinite(),
             _ => false,
         }),
+        Constant::Repeat(val, _) => match **val {
+            Constant::F32(f) => f == 0.0 || f.is_infinite(),
+            Constant::F64(f) => f == 0.0 || f.is_infinite(),
+            _ => false,
+        },
         _ => false,
     }
 }