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Functions inlined into reachable functions are reachable

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Consider functions to be reachable for code coverage purposes, either
when they reach the code generation directly, or indirectly as inlined
part of another function.
This commit is contained in:
Tomasz Miąsko
2021-03-13 00:00:00 +00:00
parent 1796cc0e6c
commit 5a9538acb5
3 changed files with 34 additions and 1 deletions
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2
compiler/rustc_codegen_llvm/src/coverageinfo/mapgen.rs
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@@ -284,7 +284,7 @@ fn add_unreachable_coverage<'tcx>(
let all_def_ids: DefIdSet =
tcx.mir_keys(LOCAL_CRATE).iter().map(|local_def_id| local_def_id.to_def_id()).collect();
let (codegenned_def_ids, _) = tcx.collect_and_partition_mono_items(LOCAL_CRATE);
let codegenned_def_ids = tcx.codegened_and_inlined_items(LOCAL_CRATE);
let mut unreachable_def_ids_by_file: FxHashMap<Symbol, Vec<DefId>> = FxHashMap::default();
for &non_codegenned_def_id in all_def_ids.difference(codegenned_def_ids) {