[Bug fortran/44773] [4.6 Regression] Unnecessary temporaries increase the runtime for channel.f90 by ~70%

["pault at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #19 from pault at gcc dot gnu dot org  2010-07-11 16:07 -------
Subject: Bug 44773

Author: pault
Date: Sun Jul 11 16:06:53 2010
New Revision: 162059

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=162059
Log:
2010-07-11  Paul Thomas  <pault@gcc.gnu.org>

        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.


Modified:
    branches/gcc-4_5-branch/gcc/fortran/ChangeLog
    branches/gcc-4_5-branch/gcc/fortran/gfortran.h
    branches/gcc-4_5-branch/gcc/fortran/resolve.c
    branches/gcc-4_5-branch/gcc/fortran/trans-expr.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44773