Bug 233353
| Summary: | [JSC] Optimize Promise Error in DFG | ||
|---|---|---|---|
| Product: | WebKit | Reporter: | zhiyi <vulbugs> |
| Component: | JavaScriptCore | Assignee: | Nobody <webkit-unassigned> |
| Status: | NEW | ||
| Severity: | Normal | CC: | vulbugs, webkit-bug-importer |
| Priority: | P2 | Keywords: | InRadar |
| Version: | WebKit Nightly Build | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
zhiyi
OS: ubuntu20.04
Architecture: <x64>
./jsc --useConcurrentJIT=false --thresholdForOptimizeAfterWarmUp=50 bug.js
expected output
undefined
undefined
actual output
undefined
NaN
bug.js
##################################
function opt() {
const v1 = [Infinity];
const v2 = v1[4096];
new Promise(Promise);
return v2;
}
print(opt());
for (let i = 0; i < 0x1000; i++) { opt(); }
print(opt());
| Attachments | ||
|---|---|---|
| Add attachment proposed patch, testcase, etc. |
Radar WebKit Bug Importer
<rdar://problem/85760649>