Struct rustc_codegen_llvm::abi::CastTarget

pub struct CastTarget {
    pub prefix: [Option<Reg>; 8],
    pub rest: Uniform,
    pub attrs: ArgAttributes,
}

Describes the type used for PassMode::Cast.

Passing arguments in this mode works as follows: the registers in the prefix (the ones that are Some) get laid out one after the other (using repr(C) layout rules). Then the rest.unit register type gets repeated often enough to cover rest.size. This describes the actual type used for the call; the Rust type of the argument is then transmuted to this ABI type (and all data in the padding between the registers is dropped).

Fields

prefix: [Option<Reg>; 8]

rest: Uniform

attrs: ArgAttributes

Trait Implementations

impl LlvmType for CastTarget

fn llvm_type<'ll>(&self, cx: &CodegenCx<'ll, '_>) -> &'ll Type

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 168 bytes