Struct melior::dialect::ods::arith::BitcastOperation

pub struct BitcastOperation<'c> { /* private fields */ }

A bitcast operation. Bitcast between values of equal bit width.

Bitcast an integer or floating point value to an integer or floating point value of equal bit width. When operating on vectors, casts elementwise.

Note that this implements a logical bitcast independent of target endianness. This allows constant folding without target information and is consitent with the bitcast constant folders in LLVM (see https://github.com/llvm/llvm-project/blob/18c19414eb/llvm/lib/IR/ConstantFold.cpp#L168) For targets where the source and target type have the same endianness (which is the standard), this cast will also change no bits at runtime, but it may still require an operation, for example if the machine has different floating point and integer register files. For targets that have a different endianness for the source and target types (e.g. float is big-endian and integer is little-endian) a proper lowering would add operations to swap the order of words in addition to the bitcast.

Implementations

impl<'c> BitcastOperation<'c>

pub fn name() -> &'static str

Returns a name.

pub fn as_operation(&self) -> &Operation<'c>

Returns a generic operation.

pub fn builder( context: &'c Context, location: Location<'c> ) -> BitcastOperationBuilder<'c, Unset, Unset>

Creates a builder.

pub fn out(&self) -> Result<OperationResult<'c, '_>, Error>

pub fn in(&self) -> Result<Value<'c, '_>, Error>

Trait Implementations

impl<'c> From<BitcastOperation<'c>> for Operation<'c>

fn from(operation: BitcastOperation<'c>) -> Self

Converts to this type from the input type.

impl<'c> TryFrom<Operation<'c>> for BitcastOperation<'c>

type Error = Error

The type returned in the event of a conversion error.

fn try_from(operation: Operation<'c>) -> Result<Self, Self::Error>

Performs the conversion.