[Bug fortran/54997] [4.8 Regression] -Wunused-function gives false warnings

[janus at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54997



--- Comment #8 from janus at gcc dot gnu.org 2012-11-26 11:16:35 UTC ---

Author: janus

Date: Mon Nov 26 11:16:31 2012

New Revision: 193811



URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=193811

Log:

2012-11-26  Janus Weil  <ja...@gcc.gnu.org>



    PR fortran/54997

    * decl.c (match_procedure_decl): Don't set 'referenced' attribute

    for PROCEDURE declarations.

    * parse.c (gfc_fixup_sibling_symbols,parse_contained): Don't set

    'referenced' attribute for all contained procedures.

    * trans-decl.c (gfc_get_symbol_decl): Allow for unreferenced procedures.

    (build_function_decl): Set TREE_USED for referenced procedures.



2012-11-26  Janus Weil  <ja...@gcc.gnu.org>



    PR fortran/54997

    * gfortran.dg/warn_unused_function_2.f90: New.



Added:

    trunk/gcc/testsuite/gfortran.dg/warn_unused_function_2.f90

Modified:

    trunk/gcc/fortran/ChangeLog

    trunk/gcc/fortran/decl.c

    trunk/gcc/fortran/parse.c

    trunk/gcc/fortran/trans-decl.c

    trunk/gcc/testsuite/ChangeLog