Enum cranelift_codegen::isa::CallConv

pub enum CallConv {
    Fast,
    Cold,
    Tail,
    SystemV,
    WindowsFastcall,
    AppleAarch64,
    Probestack,
    WasmtimeSystemV,
}

Calling convention identifiers.

Variants

Fast

Best performance, not ABI-stable.

Cold

Smallest caller code size, not ABI-stable.

Tail

Supports tail calls, not ABI-stable.

SystemV

System V-style convention used on many platforms.

WindowsFastcall

Windows “fastcall” convention, also used for x64 and ARM.

AppleAarch64

Mac aarch64 calling convention, which is a tweaked aarch64 ABI.

Probestack

Specialized convention for the probestack function.

WasmtimeSystemV

Wasmtime equivalent of SystemV, not ABI-stable.

FIXME: remove this when Wasmtime uses the “tail” calling convention for all wasm functions.

Implementations

impl CallConv

pub fn triple_default(triple: &Triple) -> Self

Return the default calling convention for the given target triple.

pub fn for_libcall(flags: &Flags, default_call_conv: CallConv) -> Self

Returns the calling convention used for libcalls according to the current flags.

pub fn supports_tail_calls(&self) -> bool

Does this calling convention support tail calls?

pub fn extends_windows_fastcall(self) -> bool

Is the calling convention extending the Windows Fastcall ABI?

pub fn extends_apple_aarch64(self) -> bool

Is the calling convention extending the Apple aarch64 ABI?

Trait Implementations

impl Clone for CallConv

fn clone(&self) -> CallConv

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for CallConv

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

Formats the value using the given formatter.

impl Display for CallConv

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

Formats the value using the given formatter.

impl FromStr for CallConv

type Err = ()

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Hash for CallConv

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<CallConv> for CallConv

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

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

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

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

impl Copy for CallConv

impl Eq for CallConv

impl StructuralEq for CallConv

impl StructuralPartialEq for CallConv