Bug 210982
| Summary: | We need profiling for BigInt math that tells us what format the result of an operation will be | ||
|---|---|---|---|
| Product: | WebKit | Reporter: | Saam Barati <saam> |
| Component: | JavaScriptCore | Assignee: | Nobody <webkit-unassigned> |
| Status: | NEW | ||
| Severity: | Normal | CC: | benjamin, fpizlo, ggaren, gskachkov, guijemont, keith_miller, mark.lam, msaboff, rmorisset, ticaiolima, tzagallo, ysuzuki |
| Priority: | P2 | ||
| Version: | WebKit Nightly Build | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
Saam Barati
We need to know:
- Will we always produce a BigInt32 (this could happen even when the inputs are HeapBigInt)
- We will always produce a HeapBigInt (this could happen even when the inputs are always BigInt32)
- When we produce both
For example, we'll want some kind of Add on binaryUseKind(BigInt32) that speculates the result doesn't overflow, so it can say it results in BigInt32 definitively
etc.
| Attachments | ||
|---|---|---|
| Add attachment proposed patch, testcase, etc. |