[Bug fortran/50981] [4.4/4.5/4.6/4.7 Regression] Wrong-code for scalarizing ELEMENTAL call with absent OPTIONAL argument

[mikael at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50981

--- Comment #5 from Mikael Morin <mikael at gcc dot gnu.org> 2012-01-04 14:04:29 UTC ---
Author: mikael
Date: Wed Jan  4 14:04:24 2012
New Revision: 182874

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=182874
Log:
    PR fortran/50981
    * trans.h (struct gfc_ss_info): New field data::scalar::can_be_null_ref
    * trans-array.c: If the reference can be NULL, save the reference
    instead of the value.
    * trans-expr.c (gfc_conv_expr): If we have saved a reference,
    dereference it.


Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/trans-array.c
    trunk/gcc/fortran/trans-expr.c
    trunk/gcc/fortran/trans.h