[Bug fortran/52370] [4.7/4.8/4.9 Regression] Spurious "may be used uninitialized" warning for check of optional argument

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52370

--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Tue Feb 11 20:48:26 2014
New Revision: 207698

URL: http://gcc.gnu.org/viewcvs?rev=207698&root=gcc&view=rev
Log:
    PR fortran/52370
    * trans-decl.c (gfc_build_dummy_array_decl): Set TREE_NO_WARNING
    on decl if sym->attr.optional.

    * gfortran.dg/pr52370.f90: New test.

Added:
    trunk/gcc/testsuite/gfortran.dg/pr52370.f90
Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/trans-decl.c
    trunk/gcc/testsuite/ChangeLog