coverage: Anonymize line numbers in branch views #119681
Merged
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
|
r? @clubby789 (rustbot has picked a reviewer for you, use r? to override) |
rustbot
added
A-testsuite
|
@rustbot +label A-code-coverage |
clubby789
reviewed
Jan 7, 2024
Zalathar
force-pushed
the
anon-branch
branch
2 times, most recently
from
87e4d71
to
05e31b4
Compare
The code for anonymizing line numbers in coverage reports now supports the slightly different line number syntax used by branch regions.
|
@bors r+ |
bors
added
S-waiting-on-bors
bors
added a commit
to rust-lang-ci/rust
that referenced
this pull request
Jan 7, 2024
coverage: Anonymize line numbers in branch views Extracted from rust-lang#118305, as this is now the only part of that PR that needs to touch compiletest. --- Coverage tests run the `llvm-cov` tool to generate a coverage report for a test program, and then compare the report against a known-good snapshot. We use the `anonymize_coverage_line_numbers` function to replace line numbers in coverage reports with `LL`, so that they are less sensitive to lines being added or removed. This PR augments the existing code by making it also support the slightly different line number syntax used when reporting branch regions. Currently the compiler never emits branch regions, so there is no way to write a coverage test that makes use of this new capability. Instead, I've added a unit test that checks against some sample reports taken from rust-lang#118305. That unit test can be removed when some form of branch coverage support gets merged, and real branch coverage tests are added to the coverage test suite. (I have also manually tested this change as part of my draft branch-coverage PR.)
|
💥 Test timed out |
bors
added
S-waiting-on-review
|
@bors retry |
bors
added
S-waiting-on-bors
matthiaskrgr
added a commit
to matthiaskrgr/rust
that referenced
this pull request
Jan 8, 2024
coverage: Anonymize line numbers in branch views Extracted from rust-lang#118305, as this is now the only part of that PR that needs to touch compiletest. --- Coverage tests run the `llvm-cov` tool to generate a coverage report for a test program, and then compare the report against a known-good snapshot. We use the `anonymize_coverage_line_numbers` function to replace line numbers in coverage reports with `LL`, so that they are less sensitive to lines being added or removed. This PR augments the existing code by making it also support the slightly different line number syntax used when reporting branch regions. Currently the compiler never emits branch regions, so there is no way to write a coverage test that makes use of this new capability. Instead, I've added a unit test that checks against some sample reports taken from rust-lang#118305. That unit test can be removed when some form of branch coverage support gets merged, and real branch coverage tests are added to the coverage test suite. (I have also manually tested this change as part of my draft branch-coverage PR.)
bors
added a commit
to rust-lang-ci/rust
that referenced
this pull request
Jan 8, 2024
…iaskrgr Rollup of 8 pull requests Successful merges: - rust-lang#118903 (Improved support of collapse_debuginfo attribute for macros.) - rust-lang#119033 (coverage: `llvm-cov` expects column numbers to be bytes, not code points) - rust-lang#119654 (bump bootstrap dependencies) - rust-lang#119660 (remove an unnecessary stderr-per-bitwidth) - rust-lang#119663 (tests: Normalize `\r\n` to `\n` in some run-make tests) - rust-lang#119681 (coverage: Anonymize line numbers in branch views) - rust-lang#119704 (Fix two variable binding issues in lint let_underscore) - rust-lang#119725 (Add helper for when we want to know if an item has a host param) r? `@ghost` `@rustbot` modify labels: rollup
matthiaskrgr
added a commit
to matthiaskrgr/rust
that referenced
this pull request
Jan 8, 2024
coverage: Anonymize line numbers in branch views Extracted from rust-lang#118305, as this is now the only part of that PR that needs to touch compiletest. --- Coverage tests run the `llvm-cov` tool to generate a coverage report for a test program, and then compare the report against a known-good snapshot. We use the `anonymize_coverage_line_numbers` function to replace line numbers in coverage reports with `LL`, so that they are less sensitive to lines being added or removed. This PR augments the existing code by making it also support the slightly different line number syntax used when reporting branch regions. Currently the compiler never emits branch regions, so there is no way to write a coverage test that makes use of this new capability. Instead, I've added a unit test that checks against some sample reports taken from rust-lang#118305. That unit test can be removed when some form of branch coverage support gets merged, and real branch coverage tests are added to the coverage test suite. (I have also manually tested this change as part of my draft branch-coverage PR.)
matthiaskrgr
added a commit
to matthiaskrgr/rust
that referenced
this pull request
Jan 8, 2024
coverage: Anonymize line numbers in branch views Extracted from rust-lang#118305, as this is now the only part of that PR that needs to touch compiletest. --- Coverage tests run the `llvm-cov` tool to generate a coverage report for a test program, and then compare the report against a known-good snapshot. We use the `anonymize_coverage_line_numbers` function to replace line numbers in coverage reports with `LL`, so that they are less sensitive to lines being added or removed. This PR augments the existing code by making it also support the slightly different line number syntax used when reporting branch regions. Currently the compiler never emits branch regions, so there is no way to write a coverage test that makes use of this new capability. Instead, I've added a unit test that checks against some sample reports taken from rust-lang#118305. That unit test can be removed when some form of branch coverage support gets merged, and real branch coverage tests are added to the coverage test suite. (I have also manually tested this change as part of my draft branch-coverage PR.)
bors
added a commit
to rust-lang-ci/rust
that referenced
this pull request
Jan 8, 2024
…iaskrgr Rollup of 11 pull requests Successful merges: - rust-lang#116343 (Stop mentioning internal lang items in no_std binary errors) - rust-lang#118903 (Improved support of collapse_debuginfo attribute for macros.) - rust-lang#119033 (coverage: `llvm-cov` expects column numbers to be bytes, not code points) - rust-lang#119598 (Fix a typo in core::ops::Deref's doc) - rust-lang#119660 (remove an unnecessary stderr-per-bitwidth) - rust-lang#119663 (tests: Normalize `\r\n` to `\n` in some run-make tests) - rust-lang#119681 (coverage: Anonymize line numbers in branch views) - rust-lang#119704 (Fix two variable binding issues in lint let_underscore) - rust-lang#119725 (Add helper for when we want to know if an item has a host param) - rust-lang#119738 (Add `riscv32imafc-esp-espidf` tier 3 target for the ESP32-P4.) - rust-lang#119740 (Remove crossbeam-channel) Failed merges: - rust-lang#119723 (Remove `-Zdont-buffer-diagnostics`.) r? `@ghost` `@rustbot` modify labels: rollup
bors
added a commit
to rust-lang-ci/rust
that referenced
this pull request
Jan 9, 2024
…iaskrgr Rollup of 10 pull requests Successful merges: - rust-lang#118903 (Improved support of collapse_debuginfo attribute for macros.) - rust-lang#119033 (coverage: `llvm-cov` expects column numbers to be bytes, not code points) - rust-lang#119598 (Fix a typo in core::ops::Deref's doc) - rust-lang#119660 (remove an unnecessary stderr-per-bitwidth) - rust-lang#119663 (tests: Normalize `\r\n` to `\n` in some run-make tests) - rust-lang#119681 (coverage: Anonymize line numbers in branch views) - rust-lang#119704 (Fix two variable binding issues in lint let_underscore) - rust-lang#119725 (Add helper for when we want to know if an item has a host param) - rust-lang#119738 (Add `riscv32imafc-esp-espidf` tier 3 target for the ESP32-P4.) - rust-lang#119740 (Remove crossbeam-channel) r? `@ghost` `@rustbot` modify labels: rollup
rust-timer
added a commit
to rust-lang-ci/rust
that referenced
this pull request
Jan 9, 2024
Rollup merge of rust-lang#119681 - Zalathar:anon-branch, r=clubby789 coverage: Anonymize line numbers in branch views Extracted from rust-lang#118305, as this is now the only part of that PR that needs to touch compiletest. --- Coverage tests run the `llvm-cov` tool to generate a coverage report for a test program, and then compare the report against a known-good snapshot. We use the `anonymize_coverage_line_numbers` function to replace line numbers in coverage reports with `LL`, so that they are less sensitive to lines being added or removed. This PR augments the existing code by making it also support the slightly different line number syntax used when reporting branch regions. Currently the compiler never emits branch regions, so there is no way to write a coverage test that makes use of this new capability. Instead, I've added a unit test that checks against some sample reports taken from rust-lang#118305. That unit test can be removed when some form of branch coverage support gets merged, and real branch coverage tests are added to the coverage test suite. (I have also manually tested this change as part of my draft branch-coverage PR.)
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Extracted from #118305, as this is now the only part of that PR that needs to touch compiletest.
Coverage tests run the
llvm-covtool to generate a coverage report for a test program, and then compare the report against a known-good snapshot.We use the
anonymize_coverage_line_numbersfunction to replace line numbers in coverage reports withLL, so that they are less sensitive to lines being added or removed. This PR augments the existing code by making it also support the slightly different line number syntax used when reporting branch regions.Currently the compiler never emits branch regions, so there is no way to write a coverage test that makes use of this new capability. Instead, I've added a unit test that checks against some sample reports taken from #118305. That unit test can be removed when some form of branch coverage support gets merged, and real branch coverage tests are added to the coverage test suite.
(I have also manually tested this change as part of my draft branch-coverage PR.)