[all-commits] [llvm/llvm-project] 18af03: [flang] add GETLOG runtime and extension implement...

[Yi Wu via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 18af032c0e16252effeb6dfd02113812388f1d31
      https://github.com/llvm/llvm-project/commit/18af032c0e16252effeb6dfd02113812388f1d31
  Author: Yi Wu <43659785+yi-wu-arm at users.noreply.github.com>
  Date:   2023-12-21 (Thu, 21 Dec 2023)

  Changed paths:
    M flang/docs/Intrinsics.md
    M flang/include/flang/Runtime/extensions.h
    M flang/runtime/character.cpp
    M flang/runtime/extensions.cpp
    M flang/runtime/tools.h
    M flang/unittests/Runtime/CommandTest.cpp

  Log Message:
  -----------
  [flang] add GETLOG runtime and extension implementation: get login username (#74628)

Get login username, ussage:
```
CHARACTER(32) :: login
CALL getlog(login)
WRITE(*,*) login
```
getlog is required for an exascale proxyapp.
https://proxyapps.exascaleproject.org/app/minismac2d/

https://github.com/Mantevo/miniSMAC/blob/f90446714226eeef650b78bce06ca4967792e74d/ref/smac2d.f#L615

https://github.com/Mantevo/miniSMAC/blob/f90446714226eeef650b78bce06ca4967792e74d/ref/smac2d.f#L1570

---------

Co-authored-by: Yi Wu <43659785+PAX-12-WU at users.noreply.github.com>
Co-authored-by: Yi Wu <yiwu02 at wdev-yiwu02.arm.com>
Co-authored-by: Kiran Chandramohan <kiranchandramohan at gmail.com>