bjoernager/rust
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coverage: Split out MC/DC decisions from BcbMappingKind

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This commit is contained in:
Zalathar 2024-05-02 12:30:07 +10:00
parent d2d24e395a
commit af33fc85de
2 changed files with 71 additions and 51 deletions
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32
compiler/rustc_mir_transform/src/coverage/mod.rs
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@ -103,12 +103,9 @@ fn instrument_function_for_coverage<'tcx>(tcx: TyCtxt<'tcx>, mir_body: &mut mir:
inject_mcdc_statements(mir_body, &basic_coverage_blocks, &coverage_spans);
let mcdc_num_condition_bitmaps = coverage_spans
.mappings
.mcdc_decisions
.iter()
.filter_map(|bcb_mapping| match bcb_mapping.kind {
BcbMappingKind::MCDCDecision { decision_depth, .. } => Some(decision_depth),
_ => None,
})
.map(|&mappings::MCDCDecision { decision_depth, .. }| decision_depth)
.max()
.map_or(0, |max| usize::from(max) + 1);
@ -172,9 +169,6 @@ fn create_mappings<'tcx>(
false_term: term_for_bcb(false_bcb),
mcdc_params,
},
BcbMappingKind::MCDCDecision { bitmap_idx, conditions_num, .. } => {
MappingKind::MCDCDecision(DecisionInfo { bitmap_idx, conditions_num })
}
};
let code_region = make_code_region(source_map, file_name, *span, body_span)?;
Some(Mapping { kind, code_region })
@ -191,6 +185,14 @@ fn create_mappings<'tcx>(
},
));
mappings.extend(coverage_spans.mcdc_decisions.iter().filter_map(
|&mappings::MCDCDecision { span, bitmap_idx, conditions_num, .. }| {
let code_region = make_code_region(source_map, file_name, span, body_span)?;
let kind = MappingKind::MCDCDecision(DecisionInfo { bitmap_idx, conditions_num });
Some(Mapping { kind, code_region })
},
));
mappings
}
@ -258,13 +260,13 @@ fn inject_mcdc_statements<'tcx>(
}
// Inject test vector update first because `inject_statement` always insert new statement at head.
for (end_bcbs, bitmap_idx, decision_depth) in
coverage_spans.mappings.iter().filter_map(|mapping| match &mapping.kind {
BcbMappingKind::MCDCDecision { end_bcbs, bitmap_idx, decision_depth, .. } => {
Some((end_bcbs, *bitmap_idx, *decision_depth))
}
_ => None,
})
for &mappings::MCDCDecision {
span: _,
ref end_bcbs,
bitmap_idx,
conditions_num: _,
decision_depth,
} in &coverage_spans.mcdc_decisions
{
for end in end_bcbs {
let end_bb = basic_coverage_blocks[*end].leader_bb();