[−][src]Struct rustc_middle::mir::BasicBlock
A node in the MIR control-flow graph.
There are no branches (e.g., if
s, 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
impl BasicBlock
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pub const MAX_AS_U32: u32
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pub const MAX: Self
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pub const fn from_usize(value: usize) -> Self
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pub const fn from_u32(value: u32) -> Self
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pub const unsafe fn from_u32_unchecked(value: u32) -> Self
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pub const fn index(self) -> usize
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Extracts the value of this index as an integer.
pub const fn as_u32(self) -> u32
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Extracts the value of this index as a u32
.
pub const fn as_usize(self) -> usize
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Extracts the value of this index as a usize
.
impl BasicBlock
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pub fn start_location(self) -> Location
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Trait Implementations
impl Add<usize> for BasicBlock
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type Output = Self
The resulting type after applying the +
operator.
pub fn add(self, other: usize) -> Self
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impl Clone for BasicBlock
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pub fn clone(&self) -> Self
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pub fn clone_from(&mut self, source: &Self)
1.0.0[src]
impl Copy for BasicBlock
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impl Debug for BasicBlock
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impl<D: Decoder> Decodable<D> for BasicBlock
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impl<E: Encoder> Encodable<E> for BasicBlock
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impl Eq for BasicBlock
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impl From<u32> for BasicBlock
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impl From<usize> for BasicBlock
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impl Hash for BasicBlock
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pub fn hash<__H: Hasher>(&self, state: &mut __H)
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pub fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
1.3.0[src]
H: Hasher,
impl<'__ctx> HashStable<StableHashingContext<'__ctx>> for BasicBlock
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pub fn hash_stable(
&self,
__hcx: &mut StableHashingContext<'__ctx>,
__hasher: &mut StableHasher
)
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&self,
__hcx: &mut StableHashingContext<'__ctx>,
__hasher: &mut StableHasher
)
impl Idx for BasicBlock
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pub fn new(value: usize) -> Self
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pub fn index(self) -> usize
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pub fn increment_by(&mut self, amount: usize)
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pub fn plus(self, amount: usize) -> Self
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impl<'tcx> Index<BasicBlock> for Body<'tcx>
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type Output = BasicBlockData<'tcx>
The returned type after indexing.
pub fn index(&self, index: BasicBlock) -> &BasicBlockData<'tcx>
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impl<'tcx> IndexMut<BasicBlock> for Body<'tcx>
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pub fn index_mut(&mut self, index: BasicBlock) -> &mut BasicBlockData<'tcx>
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impl Ord for BasicBlock
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pub fn cmp(&self, other: &BasicBlock) -> Ordering
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#[must_use]pub fn max(self, other: Self) -> Self
1.21.0[src]
#[must_use]pub fn min(self, other: Self) -> Self
1.21.0[src]
#[must_use]pub fn clamp(self, min: Self, max: Self) -> Self
1.50.0[src]
impl PartialEq<BasicBlock> for BasicBlock
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pub fn eq(&self, other: &BasicBlock) -> bool
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pub fn ne(&self, other: &BasicBlock) -> bool
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impl PartialOrd<BasicBlock> for BasicBlock
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pub fn partial_cmp(&self, other: &BasicBlock) -> Option<Ordering>
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pub fn lt(&self, other: &BasicBlock) -> bool
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pub fn le(&self, other: &BasicBlock) -> bool
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pub fn gt(&self, other: &BasicBlock) -> bool
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pub fn ge(&self, other: &BasicBlock) -> bool
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impl Step for BasicBlock
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pub fn steps_between(start: &Self, end: &Self) -> Option<usize>
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pub fn forward_checked(start: Self, u: usize) -> Option<Self>
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pub fn backward_checked(start: Self, u: usize) -> Option<Self>
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pub fn forward(start: Self, count: usize) -> Self
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pub unsafe fn forward_unchecked(start: Self, count: usize) -> Self
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pub fn backward(start: Self, count: usize) -> Self
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pub unsafe fn backward_unchecked(start: Self, count: usize) -> Self
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impl StructuralEq for BasicBlock
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impl StructuralPartialEq for BasicBlock
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Auto Trait Implementations
impl RefUnwindSafe for BasicBlock
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impl Send for BasicBlock
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impl Sync for BasicBlock
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impl Unpin for BasicBlock
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impl UnwindSafe for BasicBlock
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Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<'tcx, T> ArenaAllocatable<'tcx, ()> for T where
T: Copy,
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T: Copy,
pub fn allocate_on(Self, &'a Arena<'tcx>) -> &'a mut T
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pub fn allocate_from_iter(
&'a Arena<'tcx>,
impl IntoIterator<Item = T>
) -> &'a mut [T]ⓘ
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&'a Arena<'tcx>,
impl IntoIterator<Item = T>
) -> &'a mut [T]ⓘ
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<'a, T> Captures<'a> for T where
T: ?Sized,
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T: ?Sized,
impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> MaybeResult<T> for T
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type Error = !
pub fn from(Result<T, <T as MaybeResult<T>>::Error>) -> T
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pub fn to_result(self) -> Result<T, <T as MaybeResult<T>>::Error>
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impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.