Struct rustc_middle::mir::BasicBlock[][src]

pub struct BasicBlock {
    private: u32,
}
Expand description

A node in the MIR control-flow graph.

There are no branches (e.g., ifs, function calls, etc.) within a basic block, which makes it easier to do data-flow analyses and optimizations. Instead, branches are represented as an edge in a graph between basic blocks.

Basic blocks consist of a series of statements, ending with a terminator. Basic blocks can have multiple predecessors and successors, however there is a MIR pass (CriticalCallEdges) that removes critical edges, which are edges that go from a multi-successor node to a multi-predecessor node. This pass is needed because some analyses require that there are no critical edges in the CFG.

Note that this type is just an index into Body.basic_blocks; the actual data that a basic block holds is in BasicBlockData.

Read more about basic blocks in the rustc-dev-guide.

Fields

private: u32

Implementations

Extracts the value of this index as an integer.

Extracts the value of this index as a u32.

Extracts the value of this index as a usize.

Trait Implementations

The resulting type after applying the + operator.

Performs the + operation. Read more

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

Performs the conversion.

Performs the conversion.

Performs the conversion.

Performs the conversion.

Feeds this value into the given Hasher. Read more

Feeds a slice of this type into the given Hasher. Read more

The returned type after indexing.

Performs the indexing (container[index]) operation. Read more

Performs the mutable indexing (container[index]) operation. Read more

This method returns an Ordering between self and other. Read more

Compares and returns the maximum of two values. Read more

Compares and returns the minimum of two values. Read more

Restrict a value to a certain interval. Read more

This method tests for self and other values to be equal, and is used by ==. Read more

This method tests for !=.

This method returns an ordering between self and other values if one exists. Read more

This method tests less than (for self and other) and is used by the < operator. Read more

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more

This method tests greater than (for self and other) and is used by the > operator. Read more

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more

🔬 This is a nightly-only experimental API. (step_trait)

recently redesigned

Returns the number of successor steps required to get from start to end. Read more

🔬 This is a nightly-only experimental API. (step_trait)

recently redesigned

Returns the value that would be obtained by taking the successor of self count times. Read more

🔬 This is a nightly-only experimental API. (step_trait)

recently redesigned

Returns the value that would be obtained by taking the predecessor of self count times. Read more

🔬 This is a nightly-only experimental API. (step_trait)

recently redesigned

Returns the value that would be obtained by taking the successor of self count times. Read more

🔬 This is a nightly-only experimental API. (step_trait)

recently redesigned

Returns the value that would be obtained by taking the successor of self count times. Read more

🔬 This is a nightly-only experimental API. (step_trait)

recently redesigned

Returns the value that would be obtained by taking the predecessor of self count times. Read more

🔬 This is a nightly-only experimental API. (step_trait)

recently redesigned

Returns the value that would be obtained by taking the predecessor of self count times. Read more

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 resulting type after obtaining ownership.

Creates owned data from borrowed data, usually by cloning. Read more

🔬 This is a nightly-only experimental API. (toowned_clone_into)

recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

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: 4 bytes