René's URL Explorer Experiment


Title: [3.7] bpo-35193: Fix an off by one error in the RETURN_VALUE case. (GH-10418) by miss-islington · Pull Request #10421 · python/cpython · GitHub

Open Graph Title: [3.7] bpo-35193: Fix an off by one error in the RETURN_VALUE case. (GH-10418) by miss-islington · Pull Request #10421 · python/cpython

X Title: [3.7] bpo-35193: Fix an off by one error in the RETURN_VALUE case. (GH-10418) by miss-islington · Pull Request #10421 · python/cpython

Description: Fix an off by one error in the peephole optimizer when checking for unreachable code beyond a return. Do a bounds check within find_op so it can return before going past the end as a safety measure. 7db3c488335168993689ddae5914a28e16188447GH-diff-a33329ae6ae0bb295d742f0caf93c137 introduced this off by one error while fixing another one nearby. This bug was shipped in all Python 3.6 and 3.7 releases. The included unittest won't fail unless you do a clang msan build. (cherry picked from commit 49fa4a9) Co-authored-by: Gregory P. Smith greg@krypto.org https://bugs.python.org/issue35193

Open Graph Description: Fix an off by one error in the peephole optimizer when checking for unreachable code beyond a return. Do a bounds check within find_op so it can return before going past the end as a safety measure...

X Description: Fix an off by one error in the peephole optimizer when checking for unreachable code beyond a return. Do a bounds check within find_op so it can return before going past the end as a safety measure...

Opengraph URL: https://github.com/python/cpython/pull/10421

X: @github

direct link

Domain: github.com

route-pattern/:user_id/:repository/pull/:id/files(.:format)
route-controllerpull_requests
route-actionfiles
fetch-noncev2:10f46cff-83d9-dca9-f3e6-cc3a21e95ee8
current-catalog-service-hashae870bc5e265a340912cde392f23dad3671a0a881730ffdadd82f2f57d81641b
request-idA638:3280E7:376EEFA:4C3607E:6A54B738
html-safe-nonce3f88e82cd3f64294d7711d800d6cf56bb7867c9f2f36955ef26488014afe416c
visitor-payloadeyJyZWZlcnJlciI6IiIsInJlcXVlc3RfaWQiOiJBNjM4OjMyODBFNzozNzZFRUZBOjRDMzYwN0U6NkE1NEI3MzgiLCJ2aXNpdG9yX2lkIjoiMjY5OTMzNTMzODk5MjkwODA4OCIsInJlZ2lvbl9lZGdlIjoiaWFkIiwicmVnaW9uX3JlbmRlciI6ImlhZCJ9
visitor-hmac1483e964ec7eeaf5bfc67b46e450a815593647d8d8e0e0367135faf1fa22e938
hovercard-subject-tagpull_request:229565425
github-keyboard-shortcutsrepository,pull-request-list,pull-request-conversation,pull-request-files-changed,copilot
google-site-verificationApib7-x98H0j5cPqHWwSMm6dNU4GmODRoqxLiDzdx9I
octolytics-urlhttps://collector.github.com/github/collect
analytics-location///pull_requests/show/files
fb:app_id1401488693436528
apple-itunes-appapp-id=1477376905, app-argument=https://github.com/python/cpython/pull/10421/files
twitter:imagehttps://avatars.githubusercontent.com/u/31488909?s=400&v=4
twitter:cardsummary_large_image
og:imagehttps://avatars.githubusercontent.com/u/31488909?s=400&v=4
og:image:altFix an off by one error in the peephole optimizer when checking for unreachable code beyond a return. Do a bounds check within find_op so it can return before going past the end as a safety measure...
og:site_nameGitHub
og:typeobject
hostnamegithub.com
expected-hostnamegithub.com
Noneb9a586c06a05a7a86fc7e3f4dbd03e42f6869085879aa184aa6369456dbd50fb
turbo-cache-controlno-preview
diff-viewunified
go-importgithub.com/python/cpython git https://github.com/python/cpython.git
octolytics-dimension-user_id1525981
octolytics-dimension-user_loginpython
octolytics-dimension-repository_id81598961
octolytics-dimension-repository_nwopython/cpython
octolytics-dimension-repository_publictrue
octolytics-dimension-repository_is_forkfalse
octolytics-dimension-repository_network_root_id81598961
octolytics-dimension-repository_network_root_nwopython/cpython
turbo-body-classeslogged-out env-production page-responsive full-width
disable-turbotrue
browser-stats-urlhttps://api.github.com/_private/browser/stats
browser-errors-urlhttps://api.github.com/_private/browser/errors
release5d343e1152573ef294b28f54e4a14fb5fdb3a5a1
ui-targetfull
theme-color#1e2327
color-schemelight dark

Links:

Skip to contenthttps://github.com/python/cpython/pull/10421/files#start-of-content
https://github.com/
Sign in https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fpython%2Fcpython%2Fpull%2F10421%2Ffiles
GitHub CopilotWrite better code with AIhttps://github.com/features/copilot
GitHub Copilot appDirect agents from issue to mergehttps://github.com/features/ai/github-app
MCP RegistryNewIntegrate external toolshttps://github.com/mcp
ActionsAutomate any workflowhttps://github.com/features/actions
CodespacesInstant dev environmentshttps://github.com/features/codespaces
IssuesPlan and track workhttps://github.com/features/issues
Code ReviewManage code changeshttps://github.com/features/code-review
GitHub Advanced SecurityFind and fix vulnerabilitieshttps://github.com/security/advanced-security
Code securitySecure your code as you buildhttps://github.com/security/advanced-security/code-security
Secret protectionStop leaks before they starthttps://github.com/security/advanced-security/secret-protection
Why GitHubhttps://github.com/why-github
Documentationhttps://docs.github.com
Bloghttps://github.blog
Changeloghttps://github.blog/changelog
Marketplacehttps://github.com/marketplace
View all featureshttps://github.com/features
Enterpriseshttps://github.com/enterprise
Small and medium teamshttps://github.com/team
Startupshttps://github.com/enterprise/startups
Nonprofitshttps://github.com/solutions/industry/nonprofits
App Modernizationhttps://github.com/solutions/use-case/app-modernization
DevSecOpshttps://github.com/solutions/use-case/devsecops
DevOpshttps://github.com/solutions/use-case/devops
CI/CDhttps://github.com/solutions/use-case/ci-cd
View all use caseshttps://github.com/solutions/use-case
Healthcarehttps://github.com/solutions/industry/healthcare
Financial serviceshttps://github.com/solutions/industry/financial-services
Manufacturinghttps://github.com/solutions/industry/manufacturing
Governmenthttps://github.com/solutions/industry/government
View all industrieshttps://github.com/solutions/industry
View all solutionshttps://github.com/solutions
AIhttps://github.com/resources/articles?topic=ai
Software Developmenthttps://github.com/resources/articles?topic=software-development
DevOpshttps://github.com/resources/articles?topic=devops
Securityhttps://github.com/resources/articles?topic=security
View all topicshttps://github.com/resources/articles
Customer storieshttps://github.com/customer-stories
Events & webinarshttps://github.com/resources/events
Ebooks & reportshttps://github.com/resources/whitepapers
Business insightshttps://github.com/solutions/executive-insights
GitHub Skillshttps://skills.github.com
Documentationhttps://docs.github.com
Customer supporthttps://support.github.com
Community forumhttps://github.com/orgs/community/discussions
Trust centerhttps://github.com/trust-center
Partnershttps://github.com/partners
View all resourceshttps://github.com/resources
GitHub SponsorsFund open source developershttps://github.com/open-source/sponsors
Security Labhttps://securitylab.github.com
Maintainer Communityhttps://maintainers.github.com
Acceleratorhttps://github.com/open-source/accelerator
GitHub Starshttps://stars.github.com
Archive Programhttps://archiveprogram.github.com
Topicshttps://github.com/topics
Trendinghttps://github.com/trending
Collectionshttps://github.com/collections
Enterprise platformAI-powered developer platformhttps://github.com/enterprise
GitHub Advanced SecurityEnterprise-grade security featureshttps://github.com/security/advanced-security
Copilot for BusinessEnterprise-grade AI featureshttps://github.com/features/copilot/copilot-business
Premium SupportEnterprise-grade 24/7 supporthttps://github.com/enterprise/premium-support
Pricinghttps://github.com/pricing
Search syntax tipshttps://docs.github.com/search-github/github-code-search/understanding-github-code-search-syntax
documentationhttps://docs.github.com/search-github/github-code-search/understanding-github-code-search-syntax
Sign in https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fpython%2Fcpython%2Fpull%2F10421%2Ffiles
Sign up https://github.com/signup?ref_cta=Sign+up&ref_loc=header+logged+out&ref_page=%2F%3Cuser-name%3E%2F%3Crepo-name%3E%2Fpull_requests%2Fshow%2Ffiles&source=header-repo&source_repo=python%2Fcpython
Reloadhttps://github.com/python/cpython/pull/10421/files
Reloadhttps://github.com/python/cpython/pull/10421/files
Reloadhttps://github.com/python/cpython/pull/10421/files
Please reload this pagehttps://github.com/python/cpython/pull/10421/files
python https://github.com/python
cpythonhttps://github.com/python/cpython
Please reload this pagehttps://github.com/python/cpython/pull/10421/files
Notifications https://github.com/login?return_to=%2Fpython%2Fcpython
Fork 35k https://github.com/login?return_to=%2Fpython%2Fcpython
Star 73.8k https://github.com/login?return_to=%2Fpython%2Fcpython
Code https://github.com/python/cpython
Issues 5k+ https://github.com/python/cpython/issues
Pull requests 2.3k https://github.com/python/cpython/pulls
Actions https://github.com/python/cpython/actions
Projects https://github.com/python/cpython/projects
Security and quality 0 https://github.com/python/cpython/security
Insights https://github.com/python/cpython/pulse
Code https://github.com/python/cpython
Issues https://github.com/python/cpython/issues
Pull requests https://github.com/python/cpython/pulls
Actions https://github.com/python/cpython/actions
Projects https://github.com/python/cpython/projects
Security and quality https://github.com/python/cpython/security
Insights https://github.com/python/cpython/pulse
Sign up for GitHub https://github.com/signup?return_to=%2Fpython%2Fcpython%2Fissues%2Fnew%2Fchoose
terms of servicehttps://docs.github.com/terms
privacy statementhttps://docs.github.com/privacy
Sign inhttps://github.com/login?return_to=%2Fpython%2Fcpython%2Fissues%2Fnew%2Fchoose
miss-islingtonhttps://github.com/miss-islington
python:3.7https://github.com/python/cpython/tree/3.7
miss-islington:backport-49fa4a9-3.7https://github.com/miss-islington/cpython/tree/backport-49fa4a9-3.7
Conversation 2 https://github.com/python/cpython/pull/10421
Commits 1 https://github.com/python/cpython/pull/10421/commits
Checks 0 https://github.com/python/cpython/pull/10421/checks
Files changed https://github.com/python/cpython/pull/10421/files
Please reload this pagehttps://github.com/python/cpython/pull/10421/files
[3.7] bpo-35193: Fix an off by one error in the RETURN_VALUE case. (GH-10418) https://github.com/python/cpython/pull/10421/files#top
Show all changes 1 commit https://github.com/python/cpython/pull/10421/files
c9e65c9 bpo-35193: Fix an off by one error in the RETURN_VALUE case. (GH-10418) gpshead Nov 9, 2018 https://github.com/python/cpython/pull/10421/commits/c9e65c9dc12d77f1a15cf21ceca1f38961a8baac
Clear filters https://github.com/python/cpython/pull/10421/files
Please reload this pagehttps://github.com/python/cpython/pull/10421/files
Please reload this pagehttps://github.com/python/cpython/pull/10421/files
test_compile.py https://github.com/python/cpython/pull/10421/files#diff-c69ceae0611c40012b4691e3536bf17efacdb5b51b8e155eec9a939108e42e43
2018-11-08-15-00-58.bpo-35193.HzPS6R.rst https://github.com/python/cpython/pull/10421/files#diff-26697c50cfb00aaa8284394286dbdbc6c02f4c4825349fa1f1eeca6b869287e9
peephole.c https://github.com/python/cpython/pull/10421/files#diff-3bc78aafc8aa0da74cdc1cbf79c5722d549b721c0b1c12f2943df3a531869846
Lib/test/test_compile.pyhttps://github.com/python/cpython/pull/10421/files#diff-c69ceae0611c40012b4691e3536bf17efacdb5b51b8e155eec9a939108e42e43
View file https://github.com/miss-islington/cpython/blob/c9e65c9dc12d77f1a15cf21ceca1f38961a8baac/Lib/test/test_compile.py
Open in desktop https://desktop.github.com
https://github.co/hiddenchars
https://github.com/python/cpython/pull/10421/{{ revealButtonHref }}
https://github.com/python/cpython/pull/10421/files#diff-c69ceae0611c40012b4691e3536bf17efacdb5b51b8e155eec9a939108e42e43
https://github.com/python/cpython/pull/10421/files#diff-c69ceae0611c40012b4691e3536bf17efacdb5b51b8e155eec9a939108e42e43
https://github.com/python/cpython/pull/10421/files#diff-c69ceae0611c40012b4691e3536bf17efacdb5b51b8e155eec9a939108e42e43
Misc/NEWS.d/next/Core and Builtins/2018-11-08-15-00-58.bpo-35193.HzPS6R.rsthttps://github.com/python/cpython/pull/10421/files#diff-26697c50cfb00aaa8284394286dbdbc6c02f4c4825349fa1f1eeca6b869287e9
View file https://github.com/miss-islington/cpython/blob/c9e65c9dc12d77f1a15cf21ceca1f38961a8baac/Misc/NEWS.d/next/Core%20and%20Builtins/2018-11-08-15-00-58.bpo-35193.HzPS6R.rst
Open in desktop https://desktop.github.com
https://github.co/hiddenchars
https://github.com/python/cpython/pull/10421/{{ revealButtonHref }}
Python/peephole.chttps://github.com/python/cpython/pull/10421/files#diff-3bc78aafc8aa0da74cdc1cbf79c5722d549b721c0b1c12f2943df3a531869846
View file https://github.com/miss-islington/cpython/blob/c9e65c9dc12d77f1a15cf21ceca1f38961a8baac/Python/peephole.c
Open in desktop https://desktop.github.com
https://github.co/hiddenchars
https://github.com/python/cpython/pull/10421/{{ revealButtonHref }}
https://github.com/python/cpython/pull/10421/files#diff-3bc78aafc8aa0da74cdc1cbf79c5722d549b721c0b1c12f2943df3a531869846
https://github.com/python/cpython/pull/10421/files#diff-3bc78aafc8aa0da74cdc1cbf79c5722d549b721c0b1c12f2943df3a531869846
https://github.com/python/cpython/pull/10421/files#diff-3bc78aafc8aa0da74cdc1cbf79c5722d549b721c0b1c12f2943df3a531869846
https://github.com/python/cpython/pull/10421/files#diff-3bc78aafc8aa0da74cdc1cbf79c5722d549b721c0b1c12f2943df3a531869846
https://github.com/python/cpython/pull/10421/files#diff-3bc78aafc8aa0da74cdc1cbf79c5722d549b721c0b1c12f2943df3a531869846
https://github.com/python/cpython/pull/10421/files#diff-3bc78aafc8aa0da74cdc1cbf79c5722d549b721c0b1c12f2943df3a531869846
https://github.com/python/cpython/pull/10421/files#diff-3bc78aafc8aa0da74cdc1cbf79c5722d549b721c0b1c12f2943df3a531869846
https://github.com/python/cpython/pull/10421/files#diff-3bc78aafc8aa0da74cdc1cbf79c5722d549b721c0b1c12f2943df3a531869846
https://github.com/python/cpython/pull/10421/files#diff-3bc78aafc8aa0da74cdc1cbf79c5722d549b721c0b1c12f2943df3a531869846
https://github.com/python/cpython/pull/10421/files#diff-3bc78aafc8aa0da74cdc1cbf79c5722d549b721c0b1c12f2943df3a531869846
https://github.com/python/cpython/pull/10421/files#diff-3bc78aafc8aa0da74cdc1cbf79c5722d549b721c0b1c12f2943df3a531869846
https://github.com/python/cpython/pull/10421/files#diff-3bc78aafc8aa0da74cdc1cbf79c5722d549b721c0b1c12f2943df3a531869846
https://github.com/python/cpython/pull/10421/files#diff-3bc78aafc8aa0da74cdc1cbf79c5722d549b721c0b1c12f2943df3a531869846
https://github.com/python/cpython/pull/10421/files#diff-3bc78aafc8aa0da74cdc1cbf79c5722d549b721c0b1c12f2943df3a531869846
https://github.com/python/cpython/pull/10421/files#diff-3bc78aafc8aa0da74cdc1cbf79c5722d549b721c0b1c12f2943df3a531869846
https://github.com
Termshttps://docs.github.com/site-policy/github-terms/github-terms-of-service
Privacyhttps://docs.github.com/site-policy/privacy-policies/github-privacy-statement
Securityhttps://github.com/security
Statushttps://www.githubstatus.com/
Communityhttps://github.community/
Docshttps://docs.github.com/
Contacthttps://support.github.com?tags=dotcom-footer

Viewport: width=device-width


URLs of crawlers that visited me.