pub struct BlockSets<'a, E: Idx> {
pub(crate) on_entry: &'a mut IdxSet<E>,
pub(crate) gen_set: &'a mut HybridIdxSet<E>,
pub(crate) kill_set: &'a mut HybridIdxSet<E>,
}
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Triple of sets associated with a given block.
Generally, one sets up on_entry
, gen_set
, and kill_set
for
each block individually, and then runs the dataflow analysis which
iteratively modifies the various on_entry
sets (but leaves the
other two sets unchanged, since they represent the effect of the
block, which should be invariant over the course of the analysis).
It is best to ensure that the intersection of gen_set
and
kill_set
is empty; otherwise the results of the dataflow will
have a hidden dependency on what order the bits are generated and
killed during the iteration. (This is such a good idea that the
fn gen
and fn kill
methods that set their state enforce this
for you.)
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Dataflow state immediately before control flow enters the given block.
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Bits that are set to 1 by the time we exit the given block. Hybrid
because it usually contains only 0 or 1 elements.
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Bits that are set to 0 by the time we exit the given block. Hybrid
because it usually contains only 0 or 1 elements.
🔬 This is a nightly-only experimental API. (rustc_private
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🔬 This is a nightly-only experimental API. (rustc_private
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this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml
instead?
🔬 This is a nightly-only experimental API. (rustc_private
)
this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml
instead?
🔬 This is a nightly-only experimental API. (rustc_private
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this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml
instead?
🔬 This is a nightly-only experimental API. (rustc_private
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this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml
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Formats the value using the given formatter. Read more
🔬 This is a nightly-only experimental API. (try_from
)
The type returned in the event of a conversion error.
🔬 This is a nightly-only experimental API. (try_from
)
Immutably borrows from an owned value. Read more
type Error = <U as TryFrom<T>>::Error
🔬 This is a nightly-only experimental API. (try_from
)
The type returned in the event of a conversion error.
🔬 This is a nightly-only experimental API. (try_from
)
Mutably borrows from an owned value. Read more
🔬 This is a nightly-only experimental API. (get_type_id
)
this method will likely be replaced by an associated static
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Create an error for a missing method specialization. Defaults to panicking with type, trait & method names. S
is the encoder/decoder state type, T
is the type being encoded/decoded, and the arguments are the names of the trait and method that should've been overridden. Read more
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🔬 This is a nightly-only experimental API. (rustc_private
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this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml
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