[flang-commits] [clang] [flang] [flang] add -floop-interchange and enable it with opt levels (PR #140182)

[Sebastian Pop via flang-commits]

sebpop wrote:

Thank you for raising these issues to my attention, I will be working on fixing these bugs.

I believe those bugs may not impact Fortran programs as generated by flang:
1. One data point is our internal runs of SPEC Cpu benchmarks on which interchange does trigger with flang, and there are no correctness issues.

2. Another data point is your earlier comment:
> I've confirmed the result of Fujitsu Compiler Test Suite. The only correctness issue affected by this commit is https://github.com/fujitsu/compiler-test-suite/blob/main/Fortran/0347/0347_0240.f, which will be resolved by https://github.com/llvm/llvm-project/pull/140709.

3. So far I have not seen bugs reported against flang + interchange.


https://github.com/llvm/llvm-project/pull/140182