| Issue |
114360
|
| Summary |
Wrong result for _BitInt bitwise & testcase
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
mikaelholmen
|
llvm commit: 6effab990c5c1b
Reproducer:
```
clang bbi-100697.c -O2 -std=c23
./a.out
```
Result:
```
Fail!
```
This starts happening with https://github.com/llvm/llvm-project/commit/1833d418a04123916c1dbeb0c41c8bc7d06b779b
Before that commit we got
```
Pass!
```
which is the expected result.
I originally reported this in https://github.com/llvm/llvm-project/pull/107461#issuecomment-2446969736 but @alexey-bataev did some analysis in https://github.com/llvm/llvm-project/pull/107461#issuecomment-2448053507 suggesting that the error is somewhere in X86 Codegen rather than in SLP vectorizer.
As I wrote in the original report the input was originally part of a much larger test so I've reduced it a lot but unfortunately it's still quite large (and ugly).
[bbi-100697.c.gz](https://github.com/user-attachments/files/17582314/bbi-100697.c.gz)
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