Bug 110395
| Summary: | Replace all speculative forms of DFG ConvertThis with Phantom(type check) and Identity | ||
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| Product: | WebKit | Reporter: | Filip Pizlo <fpizlo> |
| Component: | JavaScriptCore | Assignee: | Filip Pizlo <fpizlo> |
| Status: | RESOLVED DUPLICATE | ||
| Severity: | Normal | CC: | barraclough, ggaren, mario, mark.lam, mhahnenberg, oliver, sam |
| Priority: | P2 | ||
| Version: | 528+ (Nightly build) | ||
| Hardware: | All | ||
| OS: | All | ||
Filip Pizlo
This will lead to better code gen, copy propagation, etc.
| Attachments | ||
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| Add attachment proposed patch, testcase, etc. |
Filip Pizlo
There's a better way to do this - we can use Identity directly, and we can get rid of the constant folding of ConvertThis entirely.
Filip Pizlo
*** This bug has been marked as a duplicate of bug 111674 ***