Bug 77858
| Summary: | OSR loop entry into DFG sometimes happens at loops for which we have no CFA information | ||
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| Product: | WebKit | Reporter: | Filip Pizlo <fpizlo> |
| Component: | JavaScriptCore | Assignee: | Nobody <webkit-unassigned> |
| Status: | NEW | ||
| Severity: | Normal | Keywords: | InRadar |
| Priority: | P2 | ||
| Version: | 528+ (Nightly build) | ||
| Hardware: | All | ||
| OS: | All | ||
Filip Pizlo
This is a two-fold bug:
1) OSR entry should not have succeeded in that case.
2) CFA should not have thought the loop to be not executable.
We should fix both bugs.
| Attachments | ||
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| Add attachment proposed patch, testcase, etc. |
Filip Pizlo
<rdar://problem/10811435>