| Issue |
87336
|
| Summary |
[Loop Vectorizer] Loop not vectorized when accessing the same pointer with different offsets.
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
komalon1
|
See reproducer in https://godbolt.org/z/v7fqorb1h.
`a2 = a1 + 256;`
`a2` has an interleaved store access, and `a1 `has a simple linear access.
There are no actual dependencies between them when VF is 4, and it looks safe for the loop to be vectorized.
BTW, changing `a2[2*i]` to `a1[i]` makes vectorization safe.
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