feat(naga): add naga::proc::overloads::utils::scalars

Author: ErichDonGubler

naga/src/proc/overloads/utils.rs

@@ -34,6 +34,25 @@ pub fn float_scalars() -> impl Iterator<Item = ir::Scalar> + Clone {
     .into_iter()
 }
 
+/// Produce all [`ir::Scalar`]s.
+///
+/// Note that `*32` and `F16` must appear before other sizes; this is how we
+/// represent conversion rank.
+pub fn scalars() -> impl Iterator<Item = ir::Scalar> + Clone {
+    [
+        ir::Scalar::ABSTRACT_INT,
+        ir::Scalar::ABSTRACT_FLOAT,
+        ir::Scalar::I32,
+        ir::Scalar::U32,
+        ir::Scalar::F32,
+        ir::Scalar::F16,
+        ir::Scalar::I64,
+        ir::Scalar::U64,
+        ir::Scalar::F64,
+    ]
+    .into_iter()
+}
+
 /// Produce all the floating-point [`ir::Scalar`]s, but omit
 /// abstract types, for #7405.
 pub fn float_scalars_unimplemented_abstract() -> impl Iterator<Item = ir::Scalar> + Clone {