Struct rustc_target::abi::TargetDataLayout[][src]

pub struct TargetDataLayout {
Show 14 fields pub endian: Endian, pub i1_align: AbiAndPrefAlign, pub i8_align: AbiAndPrefAlign, pub i16_align: AbiAndPrefAlign, pub i32_align: AbiAndPrefAlign, pub i64_align: AbiAndPrefAlign, pub i128_align: AbiAndPrefAlign, pub f32_align: AbiAndPrefAlign, pub f64_align: AbiAndPrefAlign, pub pointer_size: Size, pub pointer_align: AbiAndPrefAlign, pub aggregate_align: AbiAndPrefAlign, pub vector_align: Vec<(Size, AbiAndPrefAlign)>, pub instruction_address_space: AddressSpace,
}
Expand description

Parsed Data layout for a target, which contains everything needed to compute layouts.

Fields

endian: Endiani1_align: AbiAndPrefAligni8_align: AbiAndPrefAligni16_align: AbiAndPrefAligni32_align: AbiAndPrefAligni64_align: AbiAndPrefAligni128_align: AbiAndPrefAlignf32_align: AbiAndPrefAlignf64_align: AbiAndPrefAlignpointer_size: Sizepointer_align: AbiAndPrefAlignaggregate_align: AbiAndPrefAlignvector_align: Vec<(Size, AbiAndPrefAlign)>

Alignments for vector types.

instruction_address_space: AddressSpace

Implementations

Returns exclusive upper bound on object size.

The theoretical maximum object size is defined as the maximum positive isize value. This ensures that the offset semantics remain well-defined by allowing it to correctly index every address within an object along with one byte past the end, along with allowing isize to store the difference between any two pointers into an object.

The upper bound on 64-bit currently needs to be lower because LLVM uses a 64-bit integer to represent object size in bits. It would need to be 1 << 61 to account for this, but is currently conservatively bounded to 1 << 47 as that is enough to cover the current usable address space on 64-bit ARMv8 and x86_64.

Trait Implementations

Creates an instance of TargetDataLayout.

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Performs the conversion.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.

Layout

Note: Most layout information is completely unstable and may be different between compiler versions and platforms. 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: 64 bytes