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update comment in the interest of precision

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Niko Matsakis 2018-08-13 09:02:38 -07:00
parent a13e4aea81
commit f1a675a467
1 changed files with 10 additions and 6 deletions
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16
src/librustc_mir/dataflow/mod.rs
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@ -454,14 +454,18 @@ pub struct AllSets<E: Idx> {
/// For each block, bits valid on entry to the block.
on_entry_sets: Vec<IdxSet<E>>,
/// For each block, bits generated by executing the statements in
/// the block. (For comparison, the Terminator for each block is
/// handled in a flow-specific manner during propagation.)
/// For each block, bits generated by executing the statements +
/// terminator in the block -- with one caveat. In particular, for
/// *call terminators*, the effect of storing the destination is
/// not included, since that only takes effect on the **success**
/// edge (and not the unwind edge).
gen_sets: Vec<HybridIdxSet<E>>,
/// For each block, bits killed by executing the statements in the
/// block. (For comparison, the Terminator for each block is
/// handled in a flow-specific manner during propagation.)
/// For each block, bits killed by executing the statements +
/// terminator in the block -- with one caveat. In particular, for
/// *call terminators*, the effect of storing the destination is
/// not included, since that only takes effect on the **success**
/// edge (and not the unwind edge).
kill_sets: Vec<HybridIdxSet<E>>,
}