Bug 228838

Summary: REGRESSION (r280507): ASSERTION FAILED: !undominatedPhis.contains(value) in JSC::B3::(anonymous namespace)::Validater::validatePhisAreDominatedByUpsilons()
Product: WebKit Reporter: Ryan Haddad <ryanhaddad>
Component: JavaScriptCoreAssignee: Robin Morisset <rmorisset>
Status: RESOLVED FIXED    
Severity: Normal CC: ews-watchlist, ggaren, keith_miller, mark.lam, msaboff, saam, tzagallo, webkit-bot-watchers-bugzilla, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: Other   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
Patch none

Ryan Haddad
Reported 2021-08-05 12:27:22 PDT
testb3 is failing on JSC debug bots, I see the following assertion failure in the logs: ASSERTION FAILED: !undominatedPhis.contains(value) ./b3/B3Validate.cpp(680) : void JSC::B3::(anonymous namespace)::Validater::validatePhisAreDominatedByUpsilons() I think it may have started with https://trac.webkit.org/changeset/280507/webkit according to https://results.webkit.org/?suite=javascriptcore-tests&test=testb3
Attachments
Patch (1.98 KB, patch)
2021-08-05 14:55 PDT, Robin Morisset 		no flags
DetailsFormatted DiffDiff
View All Add attachment proposed patch, testcase, etc.
Radar WebKit Bug Importer
Comment 1 2021-08-05 12:27:51 PDT
<rdar://problem/81579314>
Ryan Haddad
Comment 2 2021-08-05 12:28:16 PDT
Example of failure: https://build.webkit.org/#/builders/100/builds/658/steps/10/logs/stdio
Robin Morisset
Comment 3 2021-08-05 14:55:59 PDT
Created attachment 435028 [details] Patch
Geoffrey Garen
Comment 4 2021-08-05 14:58:10 PDT
Comment on attachment 435028 [details] Patch r=me
EWS
Comment 5 2021-08-05 15:40:04 PDT
Committed r280704 (240300@main): <https://commits.webkit.org/240300@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 435028 [details].
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