[Bug fortran/44582] gfortran generates wrong results due to wrong ABI in function with array return

[pault at gcc dot gnu dot org]

------- Comment #20 from pault at gcc dot gnu dot org  2010-07-10 17:09 -------
Subject: Bug 44582

Author: pault
Date: Sat Jul 10 17:08:48 2010
New Revision: 162041

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=162041
Log:
2010-07-10  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/44582
        * trans-expr.c (arrayfunc_assign_needs_temporary): New function
        to determine if a function assignment can be made without a
        temporary.
        (gfc_trans_arrayfunc_assign): Move all the conditions that
        suppress the direct function call to the above new functon and
        call it.

        PR fortran/44773
        * trans-expr.c (arrayfunc_assign_needs_temporary): No temporary
        if the lhs has never been host associated, as well as not being
        use associated, a pointer or a target.
        * resolve.c (resolve_variable): Mark variables that are host
        associated.
        * gfortran.h: Add the host_assoc bit to the symbol_attribute
        structure.

2010-07-10  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/44582
        * gfortran.dg/aliasing_array_result_1.f90 : New test.


Added:
   
branches/gcc-4_4-branch/gcc/testsuite/gfortran.dg/aliasing_array_result_1.f90
Modified:
    branches/gcc-4_4-branch/gcc/fortran/ChangeLog
    branches/gcc-4_4-branch/gcc/fortran/gfortran.h
    branches/gcc-4_4-branch/gcc/fortran/resolve.c
    branches/gcc-4_4-branch/gcc/fortran/trans-expr.c
    branches/gcc-4_4-branch/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44582