[Bug fortran/72741] New: Fortran OpenACC routine directive doesn't properly handle clauses specifying the level of parallelism

[tschwinge at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=72741

            Bug ID: 72741
           Summary: Fortran OpenACC routine directive doesn't properly
                    handle clauses specifying the level of parallelism
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Keywords: openacc
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: tschwinge at gcc dot gnu.org
  Target Milestone: ---

Created attachment 39028
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39028&action=edit
Fortran test case

The Fortran OpenACC routine directive doesn't diagnose if there are clauses
specifying conflicting levels of parallelism (such as: "!$acc routine gang
worker").  Also, from a quick look it seems as if for a routine directive with
a name (such as: "!$acc routine (function_1) gang"), any clauses specified are
generally not evaluated to determine the specified function's level of
parallelism.

(Note that unless Cesar's recent
<http://news.gmane.org/find-root.php?message_id=%3C5776D55A.4030002%40codesourcery.com%3E>
"[PATCH] OpenACC routines in fortran modules" is applied, a routine directive
for intrinsic functions (such as: "!$acc routine (ABORT) seq") will be
generally flagged as invalid.)