Hi!

On 2022-11-02T21:10:54+0100, I wrote:
> On 2022-11-02T21:04:56+0100, I wrote:
>> On 2017-04-05T08:23:58-0700, Cesar Philippidis <cesar@codesourcery.com> wrote:
>>> This patch implements the OpenACC 2.5 behavior of fortran allocate on
>>> variables marked with declare create as defined in Section 2.13.2 in the
>>> OpenACC spec.
>>
>> That functionality is still missing in GCC master branch, however a test
>> case included in that submission here:
>>
>>> --- /dev/null
>>> +++ b/libgomp/testsuite/libgomp.oacc-fortran/declare-allocatable-1.f90
>>> @@ -0,0 +1,211 @@
>>> +! Test declare create with allocatable arrays.
>>
>> ... is useful in a different (though related) context that I'm currently
>> working on.  Having applied the following changes:
>>
>>   - Replace 'call abort' by 'error stop' (in spirit of earlier PR84381
>>     changes).
>>   - Replace '[logical] .neqv. .true.' by '.not.[logical]'.
>>   - Add scanning for OpenACC compiler diagnostics.
>>   - 'dg-xfail-run-if' for '-DACC_MEM_SHARED=0' (see above).
>>
>> ..., I've then pushed to master branch
>> commit 8c357d884b16cb3c14cba8a61be5b53fd04a6bfe
>> "Add 'libgomp.oacc-fortran/declare-allocatable-1.f90'", see attached.
>
>> --- /dev/null
>> +++ b/libgomp/testsuite/libgomp.oacc-fortran/declare-allocatable-1.f90
>> @@ -0,0 +1,268 @@
>> +! Test OpenACC 'declare create' with allocatable arrays.
>> +
>> +! { dg-do run }
>> +
>> +!TODO-OpenACC-declare-allocate
>> +! Not currently implementing correct '-DACC_MEM_SHARED=0' behavior:
>> +! Missing support for OpenACC "Changes from Version 2.0 to 2.5":
>> +! "The 'declare create' directive with a Fortran 'allocatable' has new behavior".
>> +! { dg-xfail-run-if TODO { *-*-* } { -DACC_MEM_SHARED=0 } }
>> +
>> +[...]
>
> Getting rid of the "'dg-xfail-run-if' for '-DACC_MEM_SHARED=0'" via a
> work around (as seen in real-world code), I've pushed to master branch
> commit 59c6c5dbf267cd9d0a8df72b2a5eb5657b64268e
> "Add 'libgomp.oacc-fortran/declare-allocatable-1-runtime.f90'"

> ... which is 'libgomp.oacc-fortran/declare-allocatable-1.f90' adjusted
> for missing support for OpenACC "Changes from Version 2.0 to 2.5":
> "The 'declare create' directive with a Fortran 'allocatable' has new behavior".
> Thus, after 'allocate'/before 'deallocate', call 'acc_create'/'acc_delete'
> manually.

A similar test case, but with different focus, I've pushed to master
branch in commit abeaf3735fe2568b9d5b8096318da866b1fe1e5c
"Add 'libgomp.oacc-fortran/declare-allocatable-array_descriptor-1-runtime.f90'",
see attached.


Grüße
 Thomas


-----------------
Siemens Electronic Design Automation GmbH; Anschrift: Arnulfstraße 201, 80634 München; Gesellschaft mit beschränkter Haftung; Geschäftsführer: Thomas Heurung, Frank Thürauf; Sitz der Gesellschaft: München; Registergericht München, HRB 106955