Remove most manual LayoutData creations and move them to `rustc_abi`

...either as:
- methods on LayoutCalculator, for faillible operations;
- constructors on LayoutData, for infaillible ones.

1 files changed, 0 insertions, 42 deletions

diff --git a/compiler/rustc_abi/src/lib.rs b/compiler/rustc_abi/src/lib.rs
index a59dc870aa3..db9a26c3ef7 100644
--- a/compiler/rustc_abi/src/lib.rs
+++ b/compiler/rustc_abi/src/lib.rs
@@ -1744,48 +1744,6 @@ impl<FieldIdx: Idx, VariantIdx: Idx> LayoutData<FieldIdx, VariantIdx> {
     pub fn is_uninhabited(&self) -> bool {
         self.uninhabited
     }
-
-    pub fn scalar<C: HasDataLayout>(cx: &C, scalar: Scalar) -> Self {
-        let largest_niche = Niche::from_scalar(cx, Size::ZERO, scalar);
-        let size = scalar.size(cx);
-        let align = scalar.align(cx);
-
-        let range = scalar.valid_range(cx);
-
-        // All primitive types for which we don't have subtype coercions should get a distinct seed,
-        // so that types wrapping them can use randomization to arrive at distinct layouts.
-        //
-        // Some type information is already lost at this point, so as an approximation we derive
-        // the seed from what remains. For example on 64-bit targets usize and u64 can no longer
-        // be distinguished.
-        let randomization_seed = size
-            .bytes()
-            .wrapping_add(
-                match scalar.primitive() {
-                    Primitive::Int(_, true) => 1,
-                    Primitive::Int(_, false) => 2,
-                    Primitive::Float(_) => 3,
-                    Primitive::Pointer(_) => 4,
-                } << 32,
-            )
-            // distinguishes references from pointers
-            .wrapping_add((range.start as u64).rotate_right(16))
-            // distinguishes char from u32 and bool from u8
-            .wrapping_add((range.end as u64).rotate_right(16));
-
-        LayoutData {
-            variants: Variants::Single { index: VariantIdx::new(0) },
-            fields: FieldsShape::Primitive,
-            backend_repr: BackendRepr::Scalar(scalar),
-            largest_niche,
-            uninhabited: false,
-            size,
-            align,
-            max_repr_align: None,
-            unadjusted_abi_align: align.abi,
-            randomization_seed: Hash64::new(randomization_seed),
-        }
-    }
 }
 
 impl<FieldIdx: Idx, VariantIdx: Idx> fmt::Debug for LayoutData<FieldIdx, VariantIdx>