compiler: Empty out rustc_target::abi

26 files changed, 0 insertions, 269 deletions

diff --git a/compiler/rustc_target/src/abi/mod.rs b/compiler/rustc_target/src/abi/mod.rs
deleted file mode 100644
index 9f26c98df86..00000000000
--- a/compiler/rustc_target/src/abi/mod.rs
+++ /dev/null
@@ -1,269 +0,0 @@
-use std::fmt;
-use std::ops::Deref;
-
-use Float::*;
-use Primitive::*;
-use rustc_data_structures::intern::Interned;
-use rustc_macros::HashStable_Generic;
-
-pub mod call;
-
-// Explicitly import `Float` to avoid ambiguity with `Primitive::Float`.
-pub use rustc_abi::{Float, *};
-
-rustc_index::newtype_index! {
-    /// The *source-order* index of a field in a variant.
-    ///
-    /// This is how most code after type checking refers to fields, rather than
-    /// using names (as names have hygiene complications and more complex lookup).
-    ///
-    /// Particularly for `repr(Rust)` types, this may not be the same as *layout* order.
-    /// (It is for `repr(C)` `struct`s, however.)
-    ///
-    /// For example, in the following types,
-    /// ```rust
-    /// # enum Never {}
-    /// # #[repr(u16)]
-    /// enum Demo1 {
-    ///    Variant0 { a: Never, b: i32 } = 100,
-    ///    Variant1 { c: u8, d: u64 } = 10,
-    /// }
-    /// struct Demo2 { e: u8, f: u16, g: u8 }
-    /// ```
-    /// `b` is `FieldIdx(1)` in `VariantIdx(0)`,
-    /// `d` is `FieldIdx(1)` in `VariantIdx(1)`, and
-    /// `f` is `FieldIdx(1)` in `VariantIdx(0)`.
-    #[derive(HashStable_Generic)]
-    #[encodable]
-    #[orderable]
-    pub struct FieldIdx {}
-}
-
-rustc_index::newtype_index! {
-    /// The *source-order* index of a variant in a type.
-    ///
-    /// For enums, these are always `0..variant_count`, regardless of any
-    /// custom discriminants that may have been defined, and including any
-    /// variants that may end up uninhabited due to field types.  (Some of the
-    /// variants may not be present in a monomorphized ABI [`Variants`], but
-    /// those skipped variants are always counted when determining the *index*.)
-    ///
-    /// `struct`s, `tuples`, and `unions`s are considered to have a single variant
-    /// with variant index zero, aka [`FIRST_VARIANT`].
-    #[derive(HashStable_Generic)]
-    #[encodable]
-    #[orderable]
-    pub struct VariantIdx {
-        /// Equivalent to `VariantIdx(0)`.
-        const FIRST_VARIANT = 0;
-    }
-}
-#[derive(Copy, Clone, PartialEq, Eq, Hash, HashStable_Generic)]
-#[rustc_pass_by_value]
-pub struct Layout<'a>(pub Interned<'a, LayoutS<FieldIdx, VariantIdx>>);
-
-impl<'a> fmt::Debug for Layout<'a> {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        // See comment on `<LayoutS as Debug>::fmt` above.
-        self.0.0.fmt(f)
-    }
-}
-
-impl<'a> Deref for Layout<'a> {
-    type Target = &'a LayoutS<FieldIdx, VariantIdx>;
-    fn deref(&self) -> &&'a LayoutS<FieldIdx, VariantIdx> {
-        &self.0.0
-    }
-}
-
-impl<'a> Layout<'a> {
-    pub fn fields(self) -> &'a FieldsShape<FieldIdx> {
-        &self.0.0.fields
-    }
-
-    pub fn variants(self) -> &'a Variants<FieldIdx, VariantIdx> {
-        &self.0.0.variants
-    }
-
-    pub fn abi(self) -> Abi {
-        self.0.0.abi
-    }
-
-    pub fn largest_niche(self) -> Option<Niche> {
-        self.0.0.largest_niche
-    }
-
-    pub fn align(self) -> AbiAndPrefAlign {
-        self.0.0.align
-    }
-
-    pub fn size(self) -> Size {
-        self.0.0.size
-    }
-
-    pub fn max_repr_align(self) -> Option<Align> {
-        self.0.0.max_repr_align
-    }
-
-    pub fn unadjusted_abi_align(self) -> Align {
-        self.0.0.unadjusted_abi_align
-    }
-
-    /// Whether the layout is from a type that implements [`std::marker::PointerLike`].
-    ///
-    /// Currently, that means that the type is pointer-sized, pointer-aligned,
-    /// and has a initialized (non-union), scalar ABI.
-    pub fn is_pointer_like(self, data_layout: &TargetDataLayout) -> bool {
-        self.size() == data_layout.pointer_size
-            && self.align().abi == data_layout.pointer_align.abi
-            && matches!(self.abi(), Abi::Scalar(Scalar::Initialized { .. }))
-    }
-}
-
-/// The layout of a type, alongside the type itself.
-/// Provides various type traversal APIs (e.g., recursing into fields).
-///
-/// Note that the layout is NOT guaranteed to always be identical
-/// to that obtained from `layout_of(ty)`, as we need to produce
-/// layouts for which Rust types do not exist, such as enum variants
-/// or synthetic fields of enums (i.e., discriminants) and wide pointers.
-#[derive(Copy, Clone, PartialEq, Eq, Hash, HashStable_Generic)]
-pub struct TyAndLayout<'a, Ty> {
-    pub ty: Ty,
-    pub layout: Layout<'a>,
-}
-
-impl<'a, Ty: fmt::Display> fmt::Debug for TyAndLayout<'a, Ty> {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        // Print the type in a readable way, not its debug representation.
-        f.debug_struct("TyAndLayout")
-            .field("ty", &format_args!("{}", self.ty))
-            .field("layout", &self.layout)
-            .finish()
-    }
-}
-
-impl<'a, Ty> Deref for TyAndLayout<'a, Ty> {
-    type Target = &'a LayoutS<FieldIdx, VariantIdx>;
-    fn deref(&self) -> &&'a LayoutS<FieldIdx, VariantIdx> {
-        &self.layout.0.0
-    }
-}
-
-/// Trait that needs to be implemented by the higher-level type representation
-/// (e.g. `rustc_middle::ty::Ty`), to provide `rustc_target::abi` functionality.
-pub trait TyAbiInterface<'a, C>: Sized + std::fmt::Debug {
-    fn ty_and_layout_for_variant(
-        this: TyAndLayout<'a, Self>,
-        cx: &C,
-        variant_index: VariantIdx,
-    ) -> TyAndLayout<'a, Self>;
-    fn ty_and_layout_field(this: TyAndLayout<'a, Self>, cx: &C, i: usize) -> TyAndLayout<'a, Self>;
-    fn ty_and_layout_pointee_info_at(
-        this: TyAndLayout<'a, Self>,
-        cx: &C,
-        offset: Size,
-    ) -> Option<PointeeInfo>;
-    fn is_adt(this: TyAndLayout<'a, Self>) -> bool;
-    fn is_never(this: TyAndLayout<'a, Self>) -> bool;
-    fn is_tuple(this: TyAndLayout<'a, Self>) -> bool;
-    fn is_unit(this: TyAndLayout<'a, Self>) -> bool;
-    fn is_transparent(this: TyAndLayout<'a, Self>) -> bool;
-}
-
-impl<'a, Ty> TyAndLayout<'a, Ty> {
-    pub fn for_variant<C>(self, cx: &C, variant_index: VariantIdx) -> Self
-    where
-        Ty: TyAbiInterface<'a, C>,
-    {
-        Ty::ty_and_layout_for_variant(self, cx, variant_index)
-    }
-
-    pub fn field<C>(self, cx: &C, i: usize) -> Self
-    where
-        Ty: TyAbiInterface<'a, C>,
-    {
-        Ty::ty_and_layout_field(self, cx, i)
-    }
-
-    pub fn pointee_info_at<C>(self, cx: &C, offset: Size) -> Option<PointeeInfo>
-    where
-        Ty: TyAbiInterface<'a, C>,
-    {
-        Ty::ty_and_layout_pointee_info_at(self, cx, offset)
-    }
-
-    pub fn is_single_fp_element<C>(self, cx: &C) -> bool
-    where
-        Ty: TyAbiInterface<'a, C>,
-        C: HasDataLayout,
-    {
-        match self.abi {
-            Abi::Scalar(scalar) => matches!(scalar.primitive(), Float(F32 | F64)),
-            Abi::Aggregate { .. } => {
-                if self.fields.count() == 1 && self.fields.offset(0).bytes() == 0 {
-                    self.field(cx, 0).is_single_fp_element(cx)
-                } else {
-                    false
-                }
-            }
-            _ => false,
-        }
-    }
-
-    pub fn is_adt<C>(self) -> bool
-    where
-        Ty: TyAbiInterface<'a, C>,
-    {
-        Ty::is_adt(self)
-    }
-
-    pub fn is_never<C>(self) -> bool
-    where
-        Ty: TyAbiInterface<'a, C>,
-    {
-        Ty::is_never(self)
-    }
-
-    pub fn is_tuple<C>(self) -> bool
-    where
-        Ty: TyAbiInterface<'a, C>,
-    {
-        Ty::is_tuple(self)
-    }
-
-    pub fn is_unit<C>(self) -> bool
-    where
-        Ty: TyAbiInterface<'a, C>,
-    {
-        Ty::is_unit(self)
-    }
-
-    pub fn is_transparent<C>(self) -> bool
-    where
-        Ty: TyAbiInterface<'a, C>,
-    {
-        Ty::is_transparent(self)
-    }
-
-    /// Finds the one field that is not a 1-ZST.
-    /// Returns `None` if there are multiple non-1-ZST fields or only 1-ZST-fields.
-    pub fn non_1zst_field<C>(&self, cx: &C) -> Option<(usize, Self)>
-    where
-        Ty: TyAbiInterface<'a, C> + Copy,
-    {
-        let mut found = None;
-        for field_idx in 0..self.fields.count() {
-            let field = self.field(cx, field_idx);
-            if field.is_1zst() {
-                continue;
-            }
-            if found.is_some() {
-                // More than one non-1-ZST field.
-                return None;
-            }
-            found = Some((field_idx, field));
-        }
-        found
-    }
-}
diff --git a/compiler/rustc_target/src/abi/call/aarch64.rs b/compiler/rustc_target/src/callconv/aarch64.rs
index 55b65fb1caa..55b65fb1caa 100644
--- a/compiler/rustc_target/src/abi/call/aarch64.rs
+++ b/compiler/rustc_target/src/callconv/aarch64.rs
diff --git a/compiler/rustc_target/src/abi/call/amdgpu.rs b/compiler/rustc_target/src/callconv/amdgpu.rs
index 3007a729a8b..3007a729a8b 100644
--- a/compiler/rustc_target/src/abi/call/amdgpu.rs
+++ b/compiler/rustc_target/src/callconv/amdgpu.rs
diff --git a/compiler/rustc_target/src/abi/call/arm.rs b/compiler/rustc_target/src/callconv/arm.rs
index bd6f781fb81..bd6f781fb81 100644
--- a/compiler/rustc_target/src/abi/call/arm.rs
+++ b/compiler/rustc_target/src/callconv/arm.rs
diff --git a/compiler/rustc_target/src/abi/call/avr.rs b/compiler/rustc_target/src/callconv/avr.rs
index dfc991e0954..dfc991e0954 100644
--- a/compiler/rustc_target/src/abi/call/avr.rs
+++ b/compiler/rustc_target/src/callconv/avr.rs
diff --git a/compiler/rustc_target/src/abi/call/bpf.rs b/compiler/rustc_target/src/callconv/bpf.rs
index f19772ac709..f19772ac709 100644
--- a/compiler/rustc_target/src/abi/call/bpf.rs
+++ b/compiler/rustc_target/src/callconv/bpf.rs
diff --git a/compiler/rustc_target/src/abi/call/csky.rs b/compiler/rustc_target/src/callconv/csky.rs
index b1c1ae814a7..b1c1ae814a7 100644
--- a/compiler/rustc_target/src/abi/call/csky.rs
+++ b/compiler/rustc_target/src/callconv/csky.rs
diff --git a/compiler/rustc_target/src/abi/call/hexagon.rs b/compiler/rustc_target/src/callconv/hexagon.rs
index 0a0688880c0..0a0688880c0 100644
--- a/compiler/rustc_target/src/abi/call/hexagon.rs
+++ b/compiler/rustc_target/src/callconv/hexagon.rs
diff --git a/compiler/rustc_target/src/abi/call/loongarch.rs b/compiler/rustc_target/src/callconv/loongarch.rs
index 4a21935623b..4a21935623b 100644
--- a/compiler/rustc_target/src/abi/call/loongarch.rs
+++ b/compiler/rustc_target/src/callconv/loongarch.rs
diff --git a/compiler/rustc_target/src/abi/call/m68k.rs b/compiler/rustc_target/src/callconv/m68k.rs
index 82fe81f8c52..82fe81f8c52 100644
--- a/compiler/rustc_target/src/abi/call/m68k.rs
+++ b/compiler/rustc_target/src/callconv/m68k.rs
diff --git a/compiler/rustc_target/src/abi/call/mips.rs b/compiler/rustc_target/src/callconv/mips.rs
index 37980a91c76..37980a91c76 100644
--- a/compiler/rustc_target/src/abi/call/mips.rs
+++ b/compiler/rustc_target/src/callconv/mips.rs
diff --git a/compiler/rustc_target/src/abi/call/mips64.rs b/compiler/rustc_target/src/callconv/mips64.rs
index 2c3258c8d42..2c3258c8d42 100644
--- a/compiler/rustc_target/src/abi/call/mips64.rs
+++ b/compiler/rustc_target/src/callconv/mips64.rs
diff --git a/compiler/rustc_target/src/abi/call/mod.rs b/compiler/rustc_target/src/callconv/mod.rs
index 352861c5ccb..352861c5ccb 100644
--- a/compiler/rustc_target/src/abi/call/mod.rs
+++ b/compiler/rustc_target/src/callconv/mod.rs
diff --git a/compiler/rustc_target/src/abi/call/msp430.rs b/compiler/rustc_target/src/callconv/msp430.rs
index 4f613aa6c15..4f613aa6c15 100644
--- a/compiler/rustc_target/src/abi/call/msp430.rs
+++ b/compiler/rustc_target/src/callconv/msp430.rs
diff --git a/compiler/rustc_target/src/abi/call/nvptx64.rs b/compiler/rustc_target/src/callconv/nvptx64.rs
index 2e8b16d3a93..2e8b16d3a93 100644
--- a/compiler/rustc_target/src/abi/call/nvptx64.rs
+++ b/compiler/rustc_target/src/callconv/nvptx64.rs
diff --git a/compiler/rustc_target/src/abi/call/powerpc.rs b/compiler/rustc_target/src/callconv/powerpc.rs
index f3b05c48173..f3b05c48173 100644
--- a/compiler/rustc_target/src/abi/call/powerpc.rs
+++ b/compiler/rustc_target/src/callconv/powerpc.rs
diff --git a/compiler/rustc_target/src/abi/call/powerpc64.rs b/compiler/rustc_target/src/callconv/powerpc64.rs
index 71e533b8cc5..71e533b8cc5 100644
--- a/compiler/rustc_target/src/abi/call/powerpc64.rs
+++ b/compiler/rustc_target/src/callconv/powerpc64.rs
diff --git a/compiler/rustc_target/src/abi/call/riscv.rs b/compiler/rustc_target/src/callconv/riscv.rs
index be6bc701b49..be6bc701b49 100644
--- a/compiler/rustc_target/src/abi/call/riscv.rs
+++ b/compiler/rustc_target/src/callconv/riscv.rs
diff --git a/compiler/rustc_target/src/abi/call/s390x.rs b/compiler/rustc_target/src/callconv/s390x.rs
index 502e7331267..502e7331267 100644
--- a/compiler/rustc_target/src/abi/call/s390x.rs
+++ b/compiler/rustc_target/src/callconv/s390x.rs
diff --git a/compiler/rustc_target/src/abi/call/sparc.rs b/compiler/rustc_target/src/callconv/sparc.rs
index 37980a91c76..37980a91c76 100644
--- a/compiler/rustc_target/src/abi/call/sparc.rs
+++ b/compiler/rustc_target/src/callconv/sparc.rs
diff --git a/compiler/rustc_target/src/abi/call/sparc64.rs b/compiler/rustc_target/src/callconv/sparc64.rs
index 835353f76fc..835353f76fc 100644
--- a/compiler/rustc_target/src/abi/call/sparc64.rs
+++ b/compiler/rustc_target/src/callconv/sparc64.rs
diff --git a/compiler/rustc_target/src/abi/call/wasm.rs b/compiler/rustc_target/src/callconv/wasm.rs
index 3c4cd76a754..3c4cd76a754 100644
--- a/compiler/rustc_target/src/abi/call/wasm.rs
+++ b/compiler/rustc_target/src/callconv/wasm.rs
diff --git a/compiler/rustc_target/src/abi/call/x86.rs b/compiler/rustc_target/src/callconv/x86.rs
index d9af83d3205..d9af83d3205 100644
--- a/compiler/rustc_target/src/abi/call/x86.rs
+++ b/compiler/rustc_target/src/callconv/x86.rs
diff --git a/compiler/rustc_target/src/abi/call/x86_64.rs b/compiler/rustc_target/src/callconv/x86_64.rs
index 9910e623ac9..9910e623ac9 100644
--- a/compiler/rustc_target/src/abi/call/x86_64.rs
+++ b/compiler/rustc_target/src/callconv/x86_64.rs
diff --git a/compiler/rustc_target/src/abi/call/x86_win64.rs b/compiler/rustc_target/src/callconv/x86_win64.rs
index e5a20b248e4..e5a20b248e4 100644
--- a/compiler/rustc_target/src/abi/call/x86_win64.rs
+++ b/compiler/rustc_target/src/callconv/x86_win64.rs
diff --git a/compiler/rustc_target/src/abi/call/xtensa.rs b/compiler/rustc_target/src/callconv/xtensa.rs
index e1728b08a39..e1728b08a39 100644
--- a/compiler/rustc_target/src/abi/call/xtensa.rs
+++ b/compiler/rustc_target/src/callconv/xtensa.rs