Struct StackSlotData 

pub struct StackSlotData {
    pub kind: StackSlotKind,
    pub size: StackSize,
    pub align_shift: u8,
    pub key: Option<StackSlotKey>,
}

Contents of a stack slot.

Fields

kind: StackSlotKind

The kind of stack slot.

size: StackSize

Size of stack slot in bytes.

align_shift: u8

Alignment of stack slot as a power-of-two exponent (log2 value). The stack slot will be at least this aligned; it may be aligned according to other considerations, such as minimum stack slot size or machine word size, as well.

key: Option<StackSlotKey>

Opaque stackslot metadata handle, passed through to compilation result metadata describing stackslot location.

In the face of compiler transforms like inlining that may move stackslots between functions, when an embedder wants to externally observe stackslots, it needs a first-class way for the identity of stackslots to be carried along with the IR entities. This opaque StackSlotKey allows the embedder to do so.

Implementations

impl StackSlotData

pub fn new(kind: StackSlotKind, size: StackSize, align_shift: u8) -> Self

Create a stack slot with the specified byte size and alignment.

pub fn new_with_key( kind: StackSlotKind, size: StackSize, align_shift: u8, key: StackSlotKey, ) -> Self

Create a stack slot with the specified byte size and alignment and the given user-defined key.

Trait Implementations

impl Clone for StackSlotData

fn clone(&self) -> StackSlotData

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StackSlotData

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for StackSlotData

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for StackSlotData

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

Formats the value using the given formatter.

impl Hash for StackSlotData

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

Feeds this value into the given Hasher.

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

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for StackSlotData

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for StackSlotData

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for StackSlotData

impl StructuralPartialEq for StackSlotData