------- Comment #5 from kargl at gcc dot gnu dot org 2009-04-15 17:43 -------
(In reply to comment #4)
> > But, it does not do
> > what you expected! Try using your allocated array in something
> > other than SIZE().
>
> It's doing exactly what I expect... including the size intrinsic returning a
> garbage result because it returns a default integer.
>
> > cat test.f90
> INTEGER*8 :: N
> INTEGER, DIMENSION(:), ALLOCATABLE :: data
> N=2_8**32
> write(6,*) N
> ALLOCATE(data(N))
> data(1:N)=0
> write(6,*) SIZE(data,1)
> END
> > gfortran -O2 -fbounds-check test.f90
> > ./a.out
> 4294967296
> 0
>
Damn. I was in the wrong xterm, which was a i686 system
not my usual x86_64. I looked at the wrong dump. You're
correct that size is doing something stupid. From the
dump
logical(kind=4) D.1539; <-- This wrong.
integer(kind=8) size.2;
integer(kind=8) D.1537;
data.dtype = 265;
data.dim[0].lbound = 1;
data.dim[0].ubound = n;
data.dim[0].stride = 1;
D.1537 = NON_LVALUE_EXPR <MAX_EXPR <n, 0>>;
D.1539 = NON_LVALUE_EXPR <n> <= 0; <--- because this triggers
if (D.1539) <--- this.
{
size.2 = 0;
}
--
kargl at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2009-04-15 17:43:49
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39772
