https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113793
anlauf at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |anlauf at gcc dot gnu.org
Ever confirmed|0 |1
Last reconfirmed| |2024-02-07
Keywords| |wrong-code
Status|UNCONFIRMED |NEW
--- Comment #1 from anlauf at gcc dot gnu.org ---
(In reply to Manfred Schwarb from comment #0)
> Allocating an allocatable character array, I get a malloc error
> when the source argument is not properly padded:
>
> CHARACTER*30,allocatable :: a(:),b(:)
> ALLOCATE(a(100),source=" ")
> ALLOCATE(b(100),source=" ")
> END
>
> yields:
> malloc(): corrupted top size
Confirmed.
> I would have expected that the source argument is automatically padded
> as with variable assignments and function call arguments.
The dump-tree shows that it is padded, but the actual malloc is too short:
a.data = (void * restrict) __builtin_malloc (100);
Omitting the source= part, we get the expected:
a.data = (void * restrict) __builtin_malloc (3000);
