Struct cranelift_codegen::ir::entities::GlobalValue

pub struct GlobalValue(_);

An opaque reference to a global value.

A GlobalValue is a Value that will be live across the entire function lifetime. It can be preloaded from other global values.

You can create a GlobalValue in the following ways:

• When compiling to WASM, you can use it to load values from a VmContext using FuncEnvironment::make_global.
• When compiling to native code, you can use it for objects in static memory with Module::declare_data_in_func.
• For any compilation target, it can be registered with FunctionBuilder::create_global_value.

GlobalValues can be retrieved with InstBuilder:global_value.

Methods

impl GlobalValue

pub fn from_u32(x: u32) -> Self

Return the underlying index value as a u32.

pub fn as_u32(self) -> u32

Return the underlying index value as a u32.

impl GlobalValue

pub fn with_number(n: u32) -> Option<Self>

Create a new global value reference from its number.

This method is for use by the parser.

Trait Implementations

impl From<GlobalValue> for AnyEntity

fn from(r: GlobalValue) -> Self

Performs the conversion.

impl Display for GlobalValue

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

Formats the value using the given formatter.

impl Debug for GlobalValue

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

Formats the value using the given formatter.

impl PartialEq<GlobalValue> for GlobalValue

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl Eq for GlobalValue

impl Hash for GlobalValue

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, 

Feeds a slice of this type into the given [Hasher].

impl Copy for GlobalValue

impl Clone for GlobalValue

fn clone(&self) -> GlobalValue

Returns a copy of the value.

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

Performs copy-assignment from source.

impl EntityRef for GlobalValue

fn new(index: usize) -> Self

Create a new entity reference from a small integer. This should crash if the requested index is not representable.

fn index(self) -> usize

Get the index that was used to create this entity reference.

impl ReservedValue for GlobalValue

fn reserved_value() -> GlobalValue

Create an instance of the reserved value.