diff options
Diffstat (limited to 'compiler/rustc_mir_transform/src/coverage/spans.rs')
| -rw-r--r-- | compiler/rustc_mir_transform/src/coverage/spans.rs | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/compiler/rustc_mir_transform/src/coverage/spans.rs b/compiler/rustc_mir_transform/src/coverage/spans.rs index c54348404..8ee316773 100644 --- a/compiler/rustc_mir_transform/src/coverage/spans.rs +++ b/compiler/rustc_mir_transform/src/coverage/spans.rs @@ -63,7 +63,7 @@ impl CoverageStatement { /// Note: A `CoverageStatement` merged into another CoverageSpan may come from a `BasicBlock` that /// is not part of the `CoverageSpan` bcb if the statement was included because it's `Span` matches /// or is subsumed by the `Span` associated with this `CoverageSpan`, and it's `BasicBlock` -/// `is_dominated_by()` the `BasicBlock`s in this `CoverageSpan`. +/// `dominates()` the `BasicBlock`s in this `CoverageSpan`. #[derive(Debug, Clone)] pub(super) struct CoverageSpan { pub span: Span, @@ -407,7 +407,7 @@ impl<'a, 'tcx> CoverageSpans<'a, 'tcx> { if self.prev().is_macro_expansion() && self.curr().is_macro_expansion() { // Macros that expand to include branching (such as // `assert_eq!()`, `assert_ne!()`, `info!()`, `debug!()`, or - // `trace!()) typically generate callee spans with identical + // `trace!()`) typically generate callee spans with identical // ranges (typically the full span of the macro) for all // `BasicBlocks`. This makes it impossible to distinguish // the condition (`if val1 != val2`) from the optional @@ -694,7 +694,7 @@ impl<'a, 'tcx> CoverageSpans<'a, 'tcx> { /// `prev.span.hi()` will be greater than (further right of) `prev_original_span.hi()`. /// If prev.span() was split off to the right of a closure, prev.span().lo() will be /// greater than prev_original_span.lo(). The actual span of `prev_original_span` is - /// not as important as knowing that `prev()` **used to have the same span** as `curr(), + /// not as important as knowing that `prev()` **used to have the same span** as `curr()`, /// which means their sort order is still meaningful for determining the dominator /// relationship. /// @@ -705,12 +705,12 @@ impl<'a, 'tcx> CoverageSpans<'a, 'tcx> { fn hold_pending_dups_unless_dominated(&mut self) { // Equal coverage spans are ordered by dominators before dominated (if any), so it should be // impossible for `curr` to dominate any previous `CoverageSpan`. - debug_assert!(!self.span_bcb_is_dominated_by(self.prev(), self.curr())); + debug_assert!(!self.span_bcb_dominates(self.curr(), self.prev())); let initial_pending_count = self.pending_dups.len(); if initial_pending_count > 0 { let mut pending_dups = self.pending_dups.split_off(0); - pending_dups.retain(|dup| !self.span_bcb_is_dominated_by(self.curr(), dup)); + pending_dups.retain(|dup| !self.span_bcb_dominates(dup, self.curr())); self.pending_dups.append(&mut pending_dups); if self.pending_dups.len() < initial_pending_count { debug!( @@ -721,7 +721,7 @@ impl<'a, 'tcx> CoverageSpans<'a, 'tcx> { } } - if self.span_bcb_is_dominated_by(self.curr(), self.prev()) { + if self.span_bcb_dominates(self.prev(), self.curr()) { debug!( " different bcbs but SAME spans, and prev dominates curr. Discard prev={:?}", self.prev() @@ -787,8 +787,8 @@ impl<'a, 'tcx> CoverageSpans<'a, 'tcx> { } } - fn span_bcb_is_dominated_by(&self, covspan: &CoverageSpan, dom_covspan: &CoverageSpan) -> bool { - self.basic_coverage_blocks.is_dominated_by(covspan.bcb, dom_covspan.bcb) + fn span_bcb_dominates(&self, dom_covspan: &CoverageSpan, covspan: &CoverageSpan) -> bool { + self.basic_coverage_blocks.dominates(dom_covspan.bcb, covspan.bcb) } } @@ -802,6 +802,8 @@ pub(super) fn filtered_statement_span(statement: &Statement<'_>) -> Option<Span> | StatementKind::StorageDead(_) // Coverage should not be encountered, but don't inject coverage coverage | StatementKind::Coverage(_) + // Ignore `ConstEvalCounter`s + | StatementKind::ConstEvalCounter // Ignore `Nop`s | StatementKind::Nop => None, |