Enum PassMode

Source

pub enum PassMode {
    Ignore,
    Direct(ArgAttributes),
    Pair(ArgAttributes, ArgAttributes),
    Cast {
        pad_i32_count: u8,
        cast: Box<CastTarget>,
    },
    Indirect {
        attrs: ArgAttributes,
        meta_attrs: Option<ArgAttributes>,
        address_space: Option<AddressSpace>,
        mode: IndirectMode,
    },
}

Variants§

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Ignore

Ignore the argument.

The argument is a ZST.

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Direct(ArgAttributes)

Pass the argument directly.

The argument has a layout abi of Scalar or Vector. Unfortunately due to past mistakes, in rare cases on wasm, it can also be Aggregate. This is bad since it leaks LLVM implementation details into the ABI. (Also see https://github.com/rust-lang/rust/issues/115666.)

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Pair(ArgAttributes, ArgAttributes)

Pass a pair’s elements directly in two arguments.

The argument has a layout abi of ScalarPair.

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Cast

Pass the argument after casting it. See the CastTarget docs for details.

pad_i32 indicates how many Reg::i32() dummy arguments are emitted before the real argument.

Fields

§pad_i32_count: u8

§cast: Box<CastTarget>

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Indirect

Pass the argument indirectly via a hidden pointer.

The meta_attrs value, if any, is for the metadata (vtable or length) of an unsized argument. (This is the only mode that supports unsized arguments.)

address_space specifies if the pointer is in a special address space or the default one.

mode can be a special way to pass an argument indirectly. OnStack and AmdgpuKernelArg cannot be used for unsized arguments, i.e., when meta_attrs is Some.

Fields

§attrs: ArgAttributes

§meta_attrs: Option<ArgAttributes>

§address_space: Option<AddressSpace>

§mode: IndirectMode

Enum PassMode Copy item path

Variants§

Ignore

Direct(ArgAttributes)

Pair(ArgAttributes, ArgAttributes)

Cast

Fields

Indirect

Fields

Implementations§

impl PassMode

pub fn eq_abi(&self, other: &Self) -> bool

Trait Implementations§

impl Clone for PassMode

fn clone(&self) -> Self

fn clone_from(&mut self, source: &Self)

impl Debug for PassMode

fn fmt(&self, f: &mut Formatter<'_>) -> Result

impl Eq for PassMode

impl Hash for PassMode

fn hash<__H: Hasher>(&self, state: &mut __H)

fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

impl PartialEq for PassMode

fn eq(&self, other: &Self) -> bool

fn ne(&self, other: &Rhs) -> bool

impl StableHash for PassMode

fn stable_hash<__Hcx: StableHashCtxt>( &self, __hcx: &mut __Hcx, __hasher: &mut StableHasher, )

impl StructuralPartialEq for PassMode

Auto Trait Implementations§

impl DynSend for PassMode

impl DynSync for PassMode

impl Freeze for PassMode

impl RefUnwindSafe for PassMode

impl Send for PassMode

impl Sync for PassMode

impl Unpin for PassMode

impl UnsafeUnpin for PassMode

impl UnwindSafe for PassMode

Blanket Implementations§

impl<T> Aligned for T

const ALIGN: Alignment

impl<T> Any for Twhere T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> AnyEq for Twhere T: Any + PartialEq,

fn equals(&self, other: &(dyn Any + 'static)) -> bool

fn as_any(&self) -> &(dyn Any + 'static)

impl<T> Borrow<T> for Twhere T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for Twhere T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> CloneToUninit for Twhere T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

impl<T> DynClone for Twhere T: Clone,

fn __clone_box(&self, _: Private) -> *mut ()

impl<Q, K> Equivalent<K> for Qwhere Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

fn equivalent(&self, key: &K) -> bool

impl<Q, K> Equivalent<K> for Qwhere Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

fn equivalent(&self, key: &K) -> bool

impl<T> ErasedDestructor for Twhere T: 'static,

impl<T> From<T> for T

fn from(t: T) -> T

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self> ⓘ

fn in_current_span(self) -> Instrumented<Self> ⓘ

impl<T, U> Into<U> for Twhere U: From<T>,

fn into(self) -> U

impl<T> IntoEither for T

fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘwhere F: FnOnce(&Self) -> bool,

impl<T> Pointable for T

const ALIGN: usize

type Init = T

unsafe fn init(init: <T as Pointable>::Init) -> usize

unsafe fn deref<'a>(ptr: usize) -> &'a T

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

unsafe fn drop(ptr: usize)

impl<T> Same for T

type Output = T

impl<T> ToOwned for Twhere T: Clone,

type Owned = T

Enum PassMode

fn hash<H: Hasher>(&self, state: &mut H)

fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

fn stable_hash<Hcx: StableHashCtxt>( &self, hcx: &mut Hcx, hasher: &mut StableHasher, )

impl<T> Any for T
where T: 'static + ?Sized,

impl<T> AnyEq for T
where T: Any + PartialEq,

impl<T> Borrow<T> for T
where T: ?Sized,

impl<T> BorrowMut<T> for T
where T: ?Sized,

impl<T> CloneToUninit for T
where T: Clone,

impl<T> DynClone for T
where T: Clone,

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

impl<T> ErasedDestructor for T
where T: 'static,

impl<T, U> Into<U> for T
where U: From<T>,

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

impl<T> ToOwned for T
where T: Clone,

impl<T, U> TryFrom<U> for T
where U: Into<T>,

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> ⓘ
where S: Into<Dispatch>,