| Issue |
202467
|
| Summary |
Missed optimization: `scmp(sext(x))` can be folded to `scmp(x)`
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
ruriww
|
https://godbolt.org/z/TT1e3P1h8
Final IR:
```llvm
%_12 = tail call i32 @memcmp(ptr noundef nonnull dereferenceable(32) %x, ptr noundef nonnull dereferenceable(32) %y, i64 32)
%0 = sext i32 %_12 to i64
%_0 = tail call i8 @llvm.scmp.i8.i64(i64 %0, i64 0)
ret i8 %_0
```
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