[Bug fortran/67202] New: Fortran FE should load scalar pass-by-reference intent-in arguments at the beginning of a function

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67202

            Bug ID: 67202
           Summary: Fortran FE should load scalar pass-by-reference
                    intent-in arguments at the beginning of a function
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: marxin at gcc dot gnu.org
  Target Milestone: ---

Created attachment 36178
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36178&action=edit
Test case

Hello.

PR is follow-up of PR67170, where PRE can't hoist out an argument which is
passed by reference and is intent-in. In the situation it would be beneficial
to load the argument at the very beginning and transfer all references of the
argument to the load.

Please take a look at attached test case.

Thanks,
Martin