Bug 63669
| Summary: | DFG JIT - fix spectral-norm regression | ||
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| Product: | WebKit | Reporter: | Gavin Barraclough <barraclough> |
| Component: | JavaScriptCore | Assignee: | Nobody <webkit-unassigned> |
| Status: | RESOLVED FIXED | ||
| Severity: | Normal | ||
| Priority: | P2 | ||
| Version: | 528+ (Nightly build) | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
Gavin Barraclough
The problem is a mis-speculation leading to us falling off the speculative path. Make the speculation logic slightly smarter, don't predict int if one of the operands is already loaded as a double (we use this logic already for compares).
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| Add attachment proposed patch, testcase, etc. |
Gavin Barraclough
Fixed in r90065