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coverage: Clean up marker statements that aren't needed later

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Some of the marker statements used by coverage are added during MIR building
for use by the InstrumentCoverage pass (during analysis), and are not needed
afterwards.
This commit is contained in:
Zalathar 2024-03-15 22:27:30 +11:00
parent cdb683f6e4
commit 91aae58568
8 changed files with 159 additions and 14 deletions
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compiler/rustc_middle/src/mir/syntax.rs
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@ -124,6 +124,7 @@ pub enum AnalysisPhase {
/// * [`TerminatorKind::FalseEdge`]
/// * [`StatementKind::FakeRead`]
/// * [`StatementKind::AscribeUserType`]
/// * [`StatementKind::Coverage`] with [`CoverageKind::BlockMarker`] or [`CoverageKind::SpanMarker`]
/// * [`Rvalue::Ref`] with `BorrowKind::Fake`
///
/// Furthermore, `Deref` projections must be the first projection within any place (if they