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coverage: Don't store a body span in FunctionCoverageInfo

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This commit is contained in:
Zalathar 2025-03-18 21:19:08 +11:00
parent cd2b978433
commit cc8336b6c1
10 changed files with 14 additions and 19 deletions
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9
compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs
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@ -105,9 +105,14 @@ fn fill_region_tables<'tcx>(
ids_info: &'tcx CoverageIdsInfo,
covfun: &mut CovfunRecord<'tcx>,
) {
// Currently a function's mappings must all be in the same file as its body span.
// Currently a function's mappings must all be in the same file, so use the
// first mapping's span to determine the file.
let source_map = tcx.sess.source_map();
let source_file = source_map.lookup_source_file(fn_cov_info.body_span.lo());
let Some(first_span) = (try { fn_cov_info.mappings.first()?.span }) else {
debug_assert!(false, "function has no mappings: {:?}", covfun.mangled_function_name);
return;
};
let source_file = source_map.lookup_source_file(first_span.lo());
// Look up the global file ID for that file.
let global_file_id = global_file_table.global_file_id_for_file(&source_file);