https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86312
Dominique d'Humieres <dominiq at lps dot ens.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |RESOLVED
Resolution|--- |DUPLICATE
--- Comment #2 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
With a clean revision r268299, there is no warning at run time:
% gfca pr86312.f90 -Warray-temporaries -fcheck=array-temps
pr86312.f90:12:9:
12 | call sub(ia(1,:)) ! runtime warning: array temporary
| 1
Warning: Creating array temporary at (1) [-Warray-temporaries]
pr86312.f90:15:9:
15 | call sub(xx(:)%i) ! no runtime warning?!?
| 1
Warning: Creating array temporary at (1) [-Warray-temporaries]
% ./a.out
1 1 1 1 1 1
1 1 1 1
1 1 1 1 1 1
1 1 1 1
3 3 3 3 3 3
3 3 3 3
However if I apply the patch at
https://gcc.gnu.org/ml/fortran/2019-01/msg00223.html
I get
% gfcp pr86312.f90 -Warray-temporaries -fcheck=array-temps
pr86312.f90:12:9:
12 | call sub(ia(1,:)) ! runtime warning: array temporary
| 1
Warning: Creating array temporary at (1) [-Warray-temporaries]
pr86312.f90:15:9:
15 | call sub(xx(:)%i) ! no runtime warning?!?
| 1
Warning: Creating array temporary at (1) [-Warray-temporaries]
% ./a.out
At line 12 of file pr86312.f90
Fortran runtime warning: An array temporary was created
1 1 1 1 1 1
1 1 1 1
1 1 1 1 1 1
1 1 1 1
At line 15 of file pr86312.f90
Fortran runtime warning: An array temporary was created
3 3 3 3 3 3
3 3 3 3
*** This bug has been marked as a duplicate of bug 48655 ***
