Bug 232869
| Summary: | Compiler Incorrect Optimization | ||
|---|---|---|---|
| Product: | WebKit | Reporter: | zhiyi <vulbugs> |
| Component: | JavaScriptCore | Assignee: | Nobody <webkit-unassigned> |
| Status: | NEW | ||
| Severity: | Normal | CC: | fpizlo, lukas.bernhard, saam, webkit-bug-importer |
| Priority: | P2 | Keywords: | InRadar |
| Version: | WebKit Nightly Build | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
zhiyi
OS: ubuntu20.04
Architecture: <x64>
./jsc bug.js
expected output
3
3
actual output
3
-1
bug.js
##################################
function f() {
let v0 = 2147483648;
const v1 = v0--;
const v2 = new Float32Array([111,222,333,v1]);
const v3 = v2.indexOf(v0);
return v3;
}
let a0 = f();
print(a0);
for (let i = 0; i < 0x1000; i++) { f(); }
let a3 = f();
print(a3);
| Attachments | ||
|---|---|---|
| Add attachment proposed patch, testcase, etc. |
Radar WebKit Bug Importer
<rdar://problem/85449162>