[flang-commits] [flang] [flang] Canonicalize redundant pointer converts. (PR #121864)

[KAWASHIMA Takahiro via flang-commits]

kawashima-fj wrote:

@vzakhari After this PR is merged, https://github.com/fujitsu/compiler-test-suite/tree/2024-12/Fortran/0393/0393_0171.f90 and https://github.com/fujitsu/compiler-test-suite/blob/2024-12/Fortran/0393/0393_0174.f90 started to fail by segmentation fault on AArch64.

I can see the error with `-O2`.

```
$ flang -O2 Fortran/0393/0393_0171.f90
$ ./a.out
Segmentation fault (core dumped)
```

I confirmed the error occurs with this commit (2e637dbbb8) and the latest `main` branch (f30ff0b1a97) but doesn't occur with the previous commit (51c9c823ca).

Could you check? If you cannot reproduce the error, please let me know.


https://github.com/llvm/llvm-project/pull/121864