Struct InsertBuilder

pub struct InsertBuilder<'f, IIB: InstInserterBase<'f>> { /* private fields */ }

Builder that inserts an instruction at the current position.

An InsertBuilder is a wrapper for an InstInserterBase that turns it into an instruction builder with some additional facilities for creating instructions that reuse existing values as their results.

Implementations

impl<'f, IIB: InstInserterBase<'f>> InsertBuilder<'f, IIB>

pub fn new(inserter: IIB) -> Self

Create a new builder which inserts instructions at pos. The dfg and pos.layout references should be from the same Function.

pub fn with_results<Array>( self, reuse: Array, ) -> InsertReuseBuilder<'f, IIB, Array>

where Array: AsRef<[Option<Value>]>,

Reuse result values in reuse.

Convert this builder into one that will reuse the provided result values instead of allocating new ones. The provided values for reuse must not be attached to anything. Any missing result values will be allocated as normal.

The reuse argument is expected to be an array of Option<Value>.

pub fn with_result( self, v: Value, ) -> InsertReuseBuilder<'f, IIB, [Option<Value>; 1]>

Reuse a single result value.

Convert this into a builder that will reuse v as the single result value. The reused result value v must not be attached to anything.

This method should only be used when building an instruction with exactly one result. Use with_results() for the more general case.

Trait Implementations

impl<'f, IIB: InstInserterBase<'f>> InstBuilderBase<'f> for InsertBuilder<'f, IIB>

fn data_flow_graph(&self) -> &DataFlowGraph

Get an immutable reference to the data flow graph that will hold the constructed instructions.

fn data_flow_graph_mut(&mut self) -> &mut DataFlowGraph

Get a mutable reference to the data flow graph that will hold the constructed instructions.

fn build( self, data: InstructionData, ctrl_typevar: Type, ) -> (Inst, &'f mut DataFlowGraph)

Insert an instruction and return a reference to it, consuming the builder.