rust/coverage at 1fd3ee0660e7de642c2885b0b90e1bf10cd694ea - rust

History

Zalathar 85bec7a50c coverage: Remove incorrect assertions from counter allocation These assertions detect situations where a BCB node would have both a physical counter and one or more in-edge counters/expressions. For most BCBs that situation would indicate an implementation bug. However, it's perfectly fine in the case of a BCB having an edge that loops back to itself. Given the complexity and risk involved in fixing the assertions, and the fact that nothing relies on them actually being true, this patch just removes them instead.		2024-03-20 18:22:15 +11:00
..
auxiliary	coverage: Remove all unstable values of `-Cinstrument-coverage`	2024-03-13 11:14:09 +11:00
abort.cov-map	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
abort.coverage	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
abort.rs	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
assert_not.cov-map	coverage: Regression test for `assert!(!false)`	2023-12-16 20:58:04 +11:00
assert_not.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
assert_not.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
assert.cov-map
assert.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
assert.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
async2.cov-map	Enable GVN by default.	2023-12-24 20:08:57 +00:00
async2.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
async2.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
async_block.cov-map	coverage: Add a test for `async` blocks	2023-12-20 18:48:04 +11:00
async_block.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
async_block.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
async.cov-map	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
async.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
async.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
bad_counter_ids.cov-map	coverage: Use normal `edition:` headers in coverage tests	2024-02-02 11:17:05 +11:00
bad_counter_ids.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
bad_counter_ids.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
bench.cov-map	Add `#[coverage(off)]` to closures introduced by `#[test]`/`#[bench]`	2024-01-21 23:17:00 +11:00
bench.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
bench.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
branch_generics.cov-map	coverage: Enable branch coverage in the branch coverage tests	2024-03-14 17:19:06 +11:00
branch_generics.coverage	coverage: Enable branch coverage in the branch coverage tests	2024-03-14 17:19:06 +11:00
branch_generics.rs	coverage: Enable branch coverage in the branch coverage tests	2024-03-14 17:19:06 +11:00
branch_guard.cov-map	coverage: Enable branch coverage in the branch coverage tests	2024-03-14 17:19:06 +11:00
branch_guard.coverage	coverage: Enable branch coverage in the branch coverage tests	2024-03-14 17:19:06 +11:00
branch_guard.rs	coverage: Enable branch coverage in the branch coverage tests	2024-03-14 17:19:06 +11:00
branch_if.cov-map	coverage: Enable branch coverage in the branch coverage tests	2024-03-14 17:19:06 +11:00
branch_if.coverage	coverage: Enable branch coverage in the branch coverage tests	2024-03-14 17:19:06 +11:00
branch_if.rs	coverage: Enable branch coverage in the branch coverage tests	2024-03-14 17:19:06 +11:00
branch_while.cov-map	coverage: Enable branch coverage in the branch coverage tests	2024-03-14 17:19:06 +11:00
branch_while.coverage	coverage: Enable branch coverage in the branch coverage tests	2024-03-14 17:19:06 +11:00
branch_while.rs	coverage: Enable branch coverage in the branch coverage tests	2024-03-14 17:19:06 +11:00
closure_bug.cov-map	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
closure_bug.coverage	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
closure_bug.rs	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
closure_macro_async.cov-map	coverage: Eagerly deduplicate covspans with the same span	2024-02-21 21:25:35 +11:00
closure_macro_async.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
closure_macro_async.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
closure_macro.cov-map	coverage: Eagerly deduplicate covspans with the same span	2024-02-21 21:25:35 +11:00
closure_macro.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
closure_macro.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
closure_unit_return.cov-map	coverage: Discard spans that fill the entire function body	2024-02-16 10:57:03 +11:00
closure_unit_return.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
closure_unit_return.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
closure.cov-map	Enable by default.	2024-02-09 21:13:51 +00:00
closure.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
closure.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
color.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
color.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
conditions.cov-map	coverage: Tweak individual tests to be unaffected by `rustfmt`	2024-01-16 16:14:27 +11:00
conditions.coverage	coverage: Tweak individual tests to be unaffected by `rustfmt`	2024-01-16 16:14:27 +11:00
conditions.rs	coverage: Tweak individual tests to be unaffected by `rustfmt`	2024-01-16 16:14:27 +11:00
continue.cov-map
continue.coverage
continue.rs
coroutine.cov-map	coverage: Format all remaining tests	2024-01-18 10:42:37 +11:00
coroutine.coverage	coverage: Format all remaining tests	2024-01-18 10:42:37 +11:00
coroutine.rs	coverage: Format all remaining tests	2024-01-18 10:42:37 +11:00
coverage_attr_closure.cov-map	coverage: Discard spans that fill the entire function body	2024-02-16 10:57:03 +11:00
coverage_attr_closure.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
coverage_attr_closure.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
dead_code.cov-map
dead_code.coverage
dead_code.rs
drop_trait.cov-map
drop_trait.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
drop_trait.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
fn_sig_into_try.cov-map	coverage: Tweak individual tests to be unaffected by `rustfmt`	2024-01-16 16:14:27 +11:00
fn_sig_into_try.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
fn_sig_into_try.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
generics.cov-map
generics.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
generics.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
if_else.cov-map	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
if_else.coverage	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
if_else.rs	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
if_not.cov-map	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
if_not.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
if_not.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
if.cov-map	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
if.coverage	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
if.rs	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
ignore_map.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
ignore_map.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
ignore_run.cov-map	Allow tests to ignore individual test modes	2024-01-05 13:42:54 +11:00
ignore_run.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
inline-dead.cov-map	coverage: Discard spans that fill the entire function body	2024-02-16 10:57:03 +11:00
inline-dead.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
inline-dead.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
inline.cov-map
inline.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
inline.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
inner_items.cov-map
inner_items.coverage
inner_items.rs
issue-83601.cov-map	coverage: Don't instrument `#[automatically_derived]` functions	2024-01-22 12:18:57 +11:00
issue-83601.coverage	coverage: Don't instrument `#[automatically_derived]` functions	2024-01-22 12:18:57 +11:00
issue-83601.rs
issue-84561.cov-map	Enable by default.	2024-02-09 21:13:51 +00:00
issue-84561.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
issue-84561.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
issue-85461.cov-map
issue-85461.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
issue-85461.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
issue-93054.cov-map	coverage: Use normal `edition:` headers in coverage tests	2024-02-02 11:17:05 +11:00
issue-93054.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
issue-93054.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
lazy_boolean.cov-map	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
lazy_boolean.coverage	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
lazy_boolean.rs	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
let_else_loop.cov-map	coverage: Regression test for ICE triggered by self-loops	2024-03-20 18:14:35 +11:00
let_else_loop.coverage	coverage: Remove incorrect assertions from counter allocation	2024-03-20 18:22:15 +11:00
let_else_loop.rs	coverage: Remove incorrect assertions from counter allocation	2024-03-20 18:22:15 +11:00
long_and_wide.cov-map
long_and_wide.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
long_and_wide.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
loop_break_value.cov-map	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
loop_break_value.coverage	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
loop_break_value.rs	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
loops_branches.cov-map
loops_branches.coverage
loops_branches.rs
macro_in_closure.cov-map	coverage: Test for closure body that is a single bang-macro	2024-02-05 10:07:18 +11:00
macro_in_closure.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
macro_in_closure.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
macro_name_span.cov-map	coverage: Discard spans that fill the entire function body	2024-02-16 10:57:03 +11:00
macro_name_span.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
macro_name_span.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
match_or_pattern.cov-map
match_or_pattern.coverage
match_or_pattern.rs
nested_loops.cov-map
nested_loops.coverage
nested_loops.rs
no_cov_crate.cov-map
no_cov_crate.coverage
no_cov_crate.rs
no_spans_if_not.cov-map	macro_rules: Preserve all metavariable spans in a global side table	2024-02-18 11:19:24 +03:00
no_spans_if_not.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
no_spans_if_not.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
no_spans.cov-map	macro_rules: Preserve all metavariable spans in a global side table	2024-02-18 11:19:24 +03:00
no_spans.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
no_spans.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
overflow.cov-map
overflow.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
overflow.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
panic_unwind.cov-map
panic_unwind.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
panic_unwind.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
partial_eq.cov-map	coverage: Don't instrument `#[automatically_derived]` functions	2024-01-22 12:18:57 +11:00
partial_eq.coverage	coverage: Don't instrument `#[automatically_derived]` functions	2024-01-22 12:18:57 +11:00
partial_eq.rs	coverage: Format all remaining tests	2024-01-18 10:42:37 +11:00
README.md
simple_loop.cov-map	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
simple_loop.coverage	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
simple_loop.rs	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
simple_match.cov-map	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
simple_match.coverage	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
simple_match.rs	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
sort_groups.cov-map
sort_groups.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
sort_groups.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
test_harness.cov-map	Add `#[coverage(off)]` to closures introduced by `#[test]`/`#[bench]`	2024-01-21 23:17:00 +11:00
test_harness.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
test_harness.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
thin-lto.cov-map	coverage: Format all remaining tests	2024-01-18 10:42:37 +11:00
thin-lto.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
thin-lto.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
tight_inf_loop.cov-map
tight_inf_loop.coverage
tight_inf_loop.rs
trivial.cov-map
trivial.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
trivial.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
try_error_result.cov-map	Enable by default.	2024-02-09 21:13:51 +00:00
try_error_result.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
try_error_result.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
unicode.cov-map	coverage: Discard spans that fill the entire function body	2024-02-16 10:57:03 +11:00
unicode.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
unicode.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
unreachable.cov-map
unreachable.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
unreachable.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
unused_mod.cov-map
unused_mod.coverage
unused_mod.rs
unused.cov-map
unused.coverage
unused.rs
uses_crate.cov-map
uses_crate.coverage	coverage: Remove all unstable values of `-Cinstrument-coverage`	2024-03-13 11:14:09 +11:00
uses_crate.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
uses_inline_crate.cov-map
uses_inline_crate.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
uses_inline_crate.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
while_early_ret.cov-map	coverage: Add `#[rustfmt::skip]` to tests with non-standard formatting	2024-01-16 15:56:37 +11:00
while_early_ret.coverage	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
while_early_ret.rs	[AUTO_GENERATED] Migrate compiletest to use `ui_test`-style `//@` directives	2024-02-22 16:04:04 +00:00
while.cov-map	coverage: Tweak individual tests to be unaffected by `rustfmt`	2024-01-16 16:14:27 +11:00
while.coverage	coverage: Tweak individual tests to be unaffected by `rustfmt`	2024-01-16 16:14:27 +11:00
while.rs	coverage: Tweak individual tests to be unaffected by `rustfmt`	2024-01-16 16:14:27 +11:00
yield.cov-map	Enable by default.	2024-02-09 21:13:51 +00:00
yield.coverage
yield.rs

README.md

The tests in this directory are shared by two different test modes, and can be run in multiple different ways:

./x.py test coverage-map (compiles to LLVM IR and checks coverage mappings)
./x.py test coverage-run (runs a test binary and checks its coverage report)
./x.py test coverage (runs both coverage-map and coverage-run)

Maintenance note

These tests can be sensitive to small changes in MIR spans or MIR control flow, especially in HIR-to-MIR lowering or MIR optimizations.

If you haven't touched the coverage code directly, and the tests still pass in coverage-run mode, then it should usually be OK to just re-bless the mappings as necessary with ./x.py test coverage-map --bless, without worrying too much about the exact changes.