[flang-commits] [flang] [flang][OpenMP] Allocate `allocatable` init temps on the stack for GPUs (PR #164761)

[Michael Klemm via flang-commits]

mjklemm wrote:

As per OpenMP spec, one is not allowed to alter the allocation status of the ALLOCATABLE entity that is used in a `reduction` clause.  If that happens, the code is non-conforming.   So, I do not think it will be harmful if the ALLOCATABLE in a `reduction` are privatized using `alloca`.

https://github.com/llvm/llvm-project/pull/164761