Struct rustc_codegen_llvm::abi::ArgAbi

pub struct ArgAbi<'a, Ty> {
    pub layout: TyAndLayout<'a, Ty>,
    pub pad: Option<Reg>,
    pub mode: PassMode,
}

Information about how to pass an argument to, or return a value from, a function, under some ABI.

Fields

layout: TyAndLayout<'a, Ty>

pad: Option<Reg>

Dummy argument, which is emitted before the real argument.

mode: PassMode

Trait Implementations

impl<'ll, 'tcx> ArgAbiExt<'ll, 'tcx> for ArgAbi<'tcx, Ty<'tcx>>

fn memory_ty(&self, cx: &CodegenCx<'ll, 'tcx>) -> &'ll Type

Gets the LLVM type for a place of the original Rust type of this argument/return, i.e., the result of type_of::type_of.

fn store(
    &self,
    bx: &mut Builder<'_, 'll, 'tcx>,
    val: &'ll Value,
    dst: PlaceRef<'tcx, &'ll Value>
)

Stores a direct/indirect value described by this ArgAbi into a place for the original Rust type of this argument/return. Can be used for both storing formal arguments into Rust variables or results of call/invoke instructions into their destinations.

fn store_fn_arg<'a>(
    &self,
    bx: &mut Builder<'a, 'll, 'tcx>,
    idx: &mut usize,
    dst: PlaceRef<'tcx, &'ll Value>
)

Layout

Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.