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rust/tests/coverage
History
Zalathar ab786d3b98 coverage: Eliminate more counters by giving them to unreachable nodes 
When preparing a function's coverage counters and metadata during codegen, any
part of the original coverage graph that was removed by MIR optimizations can
be treated as having an execution count of zero.

Somewhat counter-intuitively, if we give those unreachable nodes a _higher_
priority for receiving physical counters (instead of counter expressions), that
ends up reducing the total number of physical counters needed.

This works because if a node is unreachable, we don't actually create a
physical counter for it. Instead that node gets a fixed zero counter, and any
other node that would have relied on that physical counter in its counter
expression can just ignore that term completely.
2025-02-13 13:45:53 +11:00
..
attr
Add a test for coverage attr on trait function
2024-12-24 00:09:38 +11:00
auxiliary
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
branch
coverage: Completely overhaul counter assignment, using node-flow graphs
2025-01-16 22:07:18 +11:00
condition
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
mcdc
coverage: Completely overhaul counter assignment, using node-flow graphs
2025-01-16 22:07:18 +11:00
abort.cov-map
coverage: Completely overhaul counter assignment, using node-flow graphs
2025-01-16 22:07:18 +11:00
abort.coverage
coverage: Restrict empty-span expansion to only cover { and }
2024-11-08 20:43:08 +11:00
abort.rs
Remove c_unwind from tests and fix tests
2024-06-19 13:54:55 +01:00
assert_not.cov-map
coverage: Eliminate more counters by giving them to unreachable nodes
2025-02-13 13:45:53 +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-ne.cov-map
coverage: Completely overhaul counter assignment, using node-flow graphs
2025-01-16 22:07:18 +11:00
assert-ne.coverage
coverage: Add tests/coverage/assert-ne.rs
2024-06-12 22:38:16 +10:00
assert-ne.rs
coverage: Add tests/coverage/assert-ne.rs
2024-06-12 22:38:16 +10:00
assert.cov-map
coverage: Completely overhaul counter assignment, using node-flow graphs
2025-01-16 22:07:18 +11:00
assert.coverage
coverage: Completely overhaul counter assignment, using node-flow graphs
2025-01-16 22:07:18 +11:00
assert.rs
[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives
2024-02-22 16:04:04 +00:00
async2.cov-map
coverage: Eliminate more counters by giving them to unreachable nodes
2025-02-13 13:45:53 +11:00
async2.coverage
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
async2.rs
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
async_block.cov-map
coverage: Completely overhaul counter assignment, using node-flow graphs
2025-01-16 22:07:18 +11:00
async_block.coverage
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
async_block.rs
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
async_closure.cov-map
coverage: Completely overhaul counter assignment, using node-flow graphs
2025-01-16 22:07:18 +11:00
async_closure.coverage
Stabilize async closures
2024-12-13 00:04:56 +00:00
async_closure.rs
Stabilize async closures
2024-12-13 00:04:56 +00:00
async.cov-map
coverage: Completely overhaul counter assignment, using node-flow graphs
2025-01-16 22:07:18 +11:00
async.coverage
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
async.rs
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
await_ready.cov-map
coverage: Completely overhaul counter assignment, using node-flow graphs
2025-01-16 22:07:18 +11:00
await_ready.coverage
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
await_ready.rs
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
bad_counter_ids.cov-map
coverage: Eliminate more counters by giving them to unreachable nodes
2025-02-13 13:45:53 +11:00
bad_counter_ids.coverage
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
bad_counter_ids.rs
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
bench.cov-map
coverage: Include the highest counter ID seen in .cov-map dumps
2024-10-11 21:04:37 +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
closure_bug.cov-map
coverage: Restrict empty-span expansion to only cover { and }
2024-11-08 20:43:08 +11:00
closure_bug.coverage
coverage: Restrict empty-span expansion to only cover { and }
2024-11-08 20:43:08 +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
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
closure_macro_async.coverage
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
closure_macro_async.rs
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
closure_macro.cov-map
coverage: Prefer to visit nodes whose predecessors have been visited
2024-12-07 12:13:12 +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
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
closure_unit_return.coverage
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
closure_unit_return.rs
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
closure.cov-map
comment out the old tests instead of adjusting them
2024-11-25 20:39:45 +01:00
closure.coverage
coverage: Restrict empty-span expansion to only cover { and }
2024-11-08 20:43:08 +11:00
closure.rs
[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives
2024-02-22 16:04:04 +00:00
color.coverage
Simplify the directives for ignoring coverage-test modes
2024-10-08 22:51:53 +11:00
color.rs
Simplify the directives for ignoring coverage-test modes
2024-10-08 22:51:53 +11:00
conditions.cov-map
coverage: Eliminate more counters by giving them to unreachable nodes
2025-02-13 13:45:53 +11:00
conditions.coverage
coverage: Restrict empty-span expansion to only cover { and }
2024-11-08 20:43:08 +11:00
conditions.rs
coverage: Tweak individual tests to be unaffected by rustfmt
2024-01-16 16:14:27 +11:00
continue.cov-map
coverage: Completely overhaul counter assignment, using node-flow graphs
2025-01-16 22:07:18 +11:00
continue.coverage
…
continue.rs
…
coroutine.cov-map
coverage: Completely overhaul counter assignment, using node-flow graphs
2025-01-16 22:07:18 +11:00
coroutine.coverage
Manually run x fmt on all source files in tests/coverage/
2024-05-29 14:34:17 +10:00
coroutine.rs
Manually run x fmt on all source files in tests/coverage/
2024-05-29 14:34:17 +10:00
coverage_attr_closure.cov-map
coverage: Include the highest counter ID seen in .cov-map dumps
2024-10-11 21:04:37 +11:00
coverage_attr_closure.coverage
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
coverage_attr_closure.rs
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
dead_code.cov-map
coverage: Restrict empty-span expansion to only cover { and }
2024-11-08 20:43:08 +11:00
dead_code.coverage
coverage: Restrict empty-span expansion to only cover { and }
2024-11-08 20:43:08 +11:00
dead_code.rs
…
discard-all-issue-133606.coverage
coverage: Add a synthetic test for when all spans are discarded
2024-12-19 22:03:43 +11:00
discard-all-issue-133606.rs
coverage: Add a synthetic test for when all spans are discarded
2024-12-19 22:03:43 +11:00
drop_trait.cov-map
coverage: Eliminate more counters by giving them to unreachable nodes
2025-02-13 13:45:53 +11:00
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: Don't create counters for code that was removed by MIR opts
2025-02-06 21:44:31 +11:00
fn_sig_into_try.coverage
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
fn_sig_into_try.rs
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
generic-unused-impl.cov-map
add comment to test
2025-01-09 13:55:50 +01:00
generic-unused-impl.coverage
add comment to test
2025-01-09 13:55:50 +01:00
generic-unused-impl.rs
add comment to test
2025-01-09 13:55:50 +01:00
generics.cov-map
coverage: Eliminate more counters by giving them to unreachable nodes
2025-02-13 13:45:53 +11:00
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
holes.cov-map
coverage: Include the highest counter ID seen in .cov-map dumps
2024-10-11 21:04:37 +11:00
holes.coverage
coverage: Extract hole spans from HIR instead of MIR
2024-07-08 21:22:56 +10:00
holes.rs
coverage: Test for handling of nested item spans
2024-07-08 20:24:15 +10:00
if_else.cov-map
coverage: Include the highest counter ID seen in .cov-map dumps
2024-10-11 21:04:37 +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
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
if_not.coverage
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
if_not.rs
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
if.cov-map
coverage: Restrict empty-span expansion to only cover { and }
2024-11-08 20:43:08 +11:00
if.coverage
coverage: Restrict empty-span expansion to only cover { and }
2024-11-08 20:43:08 +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
Simplify the directives for ignoring coverage-test modes
2024-10-08 22:51:53 +11:00
ignore_map.rs
Simplify the directives for ignoring coverage-test modes
2024-10-08 22:51:53 +11:00
ignore_run.cov-map
coverage: Include the highest counter ID seen in .cov-map dumps
2024-10-11 21:04:37 +11:00
ignore_run.rs
Simplify the directives for ignoring coverage-test modes
2024-10-08 22:51:53 +11:00
inline_mixed.rs
coverage: Regression test for inlining into an uninstrumented crate
2024-11-02 23:20:14 +11:00
inline-dead.cov-map
coverage: Don't create counters for code that was removed by MIR opts
2025-02-06 21:44:31 +11:00
inline-dead.coverage
Tweak various coverage test files for slightly nicer formatting
2024-05-29 14:34:11 +10:00
inline-dead.rs
Tweak various coverage test files for slightly nicer formatting
2024-05-29 14:34:11 +10:00
inline.cov-map
coverage: Completely overhaul counter assignment, using node-flow graphs
2025-01-16 22:07:18 +11:00
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
coverage: Restrict empty-span expansion to only cover { and }
2024-11-08 20:43:08 +11:00
inner_items.coverage
coverage: Restrict empty-span expansion to only cover { and }
2024-11-08 20:43:08 +11:00
inner_items.rs
Tweak various coverage test files for slightly nicer formatting
2024-05-29 14:34:11 +10:00
issue-83601.cov-map
coverage: Include the highest counter ID seen in .cov-map dumps
2024-10-11 21:04:37 +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
coverage: Don't create counters for code that was removed by MIR opts
2025-02-06 21:44:31 +11:00
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
coverage: Include the highest counter ID seen in .cov-map dumps
2024-10-11 21:04:37 +11:00
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: Include the highest counter ID seen in .cov-map dumps
2024-10-11 21:04:37 +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 an extra "transcribe" step after counter creation
2024-12-04 17:50:52 +11:00
lazy_boolean.coverage
coverage: Restrict empty-span expansion to only cover { and }
2024-11-08 20:43:08 +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
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
let_else_loop.coverage
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
let_else_loop.rs
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
long_and_wide.cov-map
coverage: Include the highest counter ID seen in .cov-map dumps
2024-10-11 21:04:37 +11:00
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: Include the highest counter ID seen in .cov-map dumps
2024-10-11 21:04:37 +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
loop-break.cov-map
coverage: Completely overhaul counter assignment, using node-flow graphs
2025-01-16 22:07:18 +11:00
loop-break.coverage
coverage: Replace the old span refiner with a single function
2024-06-12 22:59:24 +10:00
loop-break.rs
coverage: Add tests/coverage/loop-break.rs
2024-06-12 22:48:11 +10:00
loops_branches.cov-map
coverage: Eliminate more counters by giving them to unreachable nodes
2025-02-13 13:45:53 +11:00
loops_branches.coverage
…
loops_branches.rs
…
macro_in_closure.cov-map
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
macro_in_closure.coverage
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
macro_in_closure.rs
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
macro_name_span.cov-map
coverage: Include the highest counter ID seen in .cov-map dumps
2024-10-11 21:04:37 +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
coverage: Completely overhaul counter assignment, using node-flow graphs
2025-01-16 22:07:18 +11:00
match_or_pattern.coverage
coverage: Restrict empty-span expansion to only cover { and }
2024-11-08 20:43:08 +11:00
match_or_pattern.rs
…
nested_loops.cov-map
coverage: Completely overhaul counter assignment, using node-flow graphs
2025-01-16 22:07:18 +11:00
nested_loops.coverage
…
nested_loops.rs
…
no_cov_crate.cov-map
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
no_cov_crate.coverage
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
no_cov_crate.rs
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
no_spans_if_not.cov-map
coverage: Don't create counters for code that was removed by MIR opts
2025-02-06 21:44:31 +11:00
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
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
no_spans.coverage
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
no_spans.rs
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
no-core.cov-map
Coverage test for allowing coverage in a #![no_core] crate
2024-11-24 21:12:40 +11:00
no-core.coverage
Coverage test for allowing coverage in a #![no_core] crate
2024-11-24 21:12:40 +11:00
no-core.rs
Coverage test for allowing coverage in a #![no_core] crate
2024-11-24 21:12:40 +11:00
overflow.cov-map
coverage: Completely overhaul counter assignment, using node-flow graphs
2025-01-16 22:07:18 +11:00
overflow.coverage
coverage: Completely overhaul counter assignment, using node-flow graphs
2025-01-16 22:07:18 +11:00
overflow.rs
[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives
2024-02-22 16:04:04 +00:00
panic_unwind.cov-map
coverage: Completely overhaul counter assignment, using node-flow graphs
2025-01-16 22:07:18 +11:00
panic_unwind.coverage
coverage: Completely overhaul counter assignment, using node-flow graphs
2025-01-16 22:07:18 +11:00
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: Include the highest counter ID seen in .cov-map dumps
2024-10-11 21:04:37 +11:00
partial_eq.coverage
Manually run x fmt on all source files in tests/coverage/
2024-05-29 14:34:17 +10:00
partial_eq.rs
Manually run x fmt on all source files in tests/coverage/
2024-05-29 14:34:17 +10:00
README.md
coverage: Rename the run-coverage test mode to coverage-run
2023-11-08 16:41:24 +11:00
simple_loop.cov-map
coverage: Completely overhaul counter assignment, using node-flow graphs
2025-01-16 22:07:18 +11:00
simple_loop.coverage
coverage: Restrict empty-span expansion to only cover { and }
2024-11-08 20:43:08 +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: Completely overhaul counter assignment, using node-flow graphs
2025-01-16 22:07:18 +11:00
simple_match.coverage
coverage: Restrict empty-span expansion to only cover { and }
2024-11-08 20:43:08 +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
coverage: Restrict empty-span expansion to only cover { and }
2024-11-08 20:43:08 +11:00
sort_groups.coverage
coverage: Restrict empty-span expansion to only cover { and }
2024-11-08 20:43:08 +11:00
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
coverage: Include the highest counter ID seen in .cov-map dumps
2024-10-11 21:04:37 +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
tight_inf_loop.cov-map
coverage: Don't create counters for code that was removed by MIR opts
2025-02-06 21:44:31 +11:00
tight_inf_loop.coverage
…
tight_inf_loop.rs
…
trivial.cov-map
coverage: Include the highest counter ID seen in .cov-map dumps
2024-10-11 21:04:37 +11:00
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
coverage: Eliminate more counters by giving them to unreachable nodes
2025-02-13 13:45:53 +11:00
try_error_result.coverage
Tweak various coverage test files for slightly nicer formatting
2024-05-29 14:34:11 +10:00
try_error_result.rs
Tweak various coverage test files for slightly nicer formatting
2024-05-29 14:34:11 +10:00
unicode.cov-map
coverage: Completely overhaul counter assignment, using node-flow graphs
2025-01-16 22:07:18 +11:00
unicode.coverage
coverage: Restrict empty-span expansion to only cover { and }
2024-11-08 20:43:08 +11:00
unicode.rs
[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives
2024-02-22 16:04:04 +00:00
unreachable.cov-map
Stabilize #[coverage] attribute
2024-12-16 21:07:06 -05:00
unreachable.coverage
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
unreachable.rs
Revert "Auto merge of #130766 - clarfonthey:stable-coverage-attribute, r=wesleywiser"
2024-12-23 12:30:37 +11:00
unused_mod.cov-map
coverage: Build the global file table on the fly
2024-12-17 13:55:19 +11:00
unused_mod.coverage
…
unused_mod.rs
…
unused.cov-map
coverage: Completely overhaul counter assignment, using node-flow graphs
2025-01-16 22:07:18 +11:00
unused.coverage
…
unused.rs
…
uses_crate.cov-map
coverage: Include the highest counter ID seen in .cov-map dumps
2024-10-11 21:04:37 +11:00
uses_crate.coverage
coverage: Restrict empty-span expansion to only cover { and }
2024-11-08 20:43:08 +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
coverage: Restrict empty-span expansion to only cover { and }
2024-11-08 20:43:08 +11:00
uses_inline_crate.coverage
coverage: Restrict empty-span expansion to only cover { and }
2024-11-08 20:43:08 +11:00
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: Completely overhaul counter assignment, using node-flow graphs
2025-01-16 22:07:18 +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: Eliminate more counters by giving them to unreachable nodes
2025-02-13 13:45:53 +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
coverage: Completely overhaul counter assignment, using node-flow graphs
2025-01-16 22:07:18 +11:00
yield.coverage
Manually run x fmt on all source files in tests/coverage/
2024-05-29 14:34:17 +10:00
yield.rs
Manually run x fmt on all source files in tests/coverage/
2024-05-29 14:34:17 +10:00

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.