[Bug fortran/51869] Realloc on assignment wrongly assumes that MALLOC returnes '\0'-set memory

[burnus at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51869

--- Comment #1 from Tobias Burnus <burnus at gcc dot gnu.org> 2012-01-17 
14:34:46 UTC ---
Author: burnus
Date: Tue Jan 17 14:34:37 2012
New Revision: 183247

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=183247
Log:
2012-01-17  Tobias Burnus  <bur...@net-b.de>
            Janne Blomqvist  <j...@gcc.gnu.org>

        PR fortran/51869
        * trans-expr.c (alloc_scalar_allocatable_for_assignment): Nullify
        LHS after allocation, if it has allocatable components.
        * f95-lang.c (gfc_init_builtin_functions): Add BUILT_IN_CALLOC.

2012-01-17  Tobias Burnus  <bur...@net-b.de>

        PR fortran/51869
        * gfortran.dg/realloc_on_assign_9.f90: New.


Added:
    trunk/gcc/testsuite/gfortran.dg/realloc_on_assign_9.f90
Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/f95-lang.c
    trunk/gcc/fortran/trans-expr.c
    trunk/gcc/testsuite/ChangeLog