Use derive(Default) for NvvmArch.

It's possible with the `#[default]` attribute.

Author: nnethercote

crates/nvvm/src/lib.rs

@@ -254,11 +254,12 @@ impl FromStr for NvvmOption {
 }
 
 /// Nvvm architecture, default is `Compute52`
-#[derive(Debug, Clone, Copy, PartialEq, Eq, strum::EnumIter)]
+#[derive(Clone, Copy, Debug, Default, PartialEq, Eq, strum::EnumIter)]
 pub enum NvvmArch {
     Compute35,
     Compute37,
     Compute50,
+    #[default]
     Compute52,
     Compute53,
     Compute60,
@@ -346,12 +347,6 @@ impl FromStr for NvvmArch {
     }
 }
 
-impl Default for NvvmArch {
-    fn default() -> Self {
-        Self::Compute52
-    }
-}
-
 impl NvvmArch {
     /// Get the numeric capability value (e.g., 35 for Compute35)
     pub fn capability_value(&self) -> u32 {