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Pacify tidy.

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This commit is contained in:
Camille GILLOT 2023-01-19 16:57:32 +00:00
parent 8f1dbe54ea
commit bec73b09fd
1 changed files with 3 additions and 3 deletions
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6
compiler/rustc_mir_transform/src/copy_prop.rs
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@ -67,7 +67,7 @@ enum LocationExtended {
#[derive(Debug)]
struct SsaLocals {
dominators: Dominators<BasicBlock>,
/// Assignments to each local. This defines whether the local is SSA.
/// Assignments to each local. This defines whether the local is SSA.
assignments: IndexVec<Local, Set1<LocationExtended>>,
/// We visit the body in reverse postorder, to ensure each local is assigned before it is used.
/// We remember the order in which we saw the assignments to compute the SSA values in a single
@ -157,7 +157,7 @@ impl<'tcx> Visitor<'tcx> for SsaLocals {
/// _d => _a // transitively through _c
///
/// This function also returns whether all the `move?` in the pattern are `move` and not copies.
/// A local which is in the bitset can be replaced by `move _a`. Otherwise, it must be
/// A local which is in the bitset can be replaced by `move _a`. Otherwise, it must be
/// replaced by `copy _a`, as we cannot move multiple times from `_a`.
///
/// If an operand copies `_c`, it must happen before the assignment `_d = _c`, otherwise it is UB.
@ -221,7 +221,7 @@ fn compute_copy_classes(
fn meet_copy_equivalence(copies: &IndexVec<Local, Local>, property: &mut BitSet<Local>) {
// Consolidate to have a local iff all its copies are.
//
// `copies` defines equivalence classes between locals. The `local`s that recursively
// `copies` defines equivalence classes between locals. The `local`s that recursively
// move/copy the same local all have the same `head`.
for (local, &head) in copies.iter_enumerated() {
// If any copy does not have `property`, then the head is not.