2011-04-08 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/48448
* gfortran.h (gfc_option_t): Add warn_function_elimination and
flag_frontend_optimize.
* lang.opt (Wfunction-elimination): Add.
(ffrontend-optimize): Add.
* invoke.texi: Add documentation for -Wfunction-elimination
and -ffrontend-optimize. Add -faggressive-function-elimination
to list of code generation options.
* frontend-passes.c (gfc_run_passes): Run optimizations if
flag_frontend_optimize is set.
(warn_function_elimination): New function.
(cfe_expr_0): Call it if requested to do so.
* options.c (gfc_init_options): Initiate warn_function_elimination
and flag_frontend_optimize.
(gfc_post_options): Set flag_frontend_optimize if not specified
by user, depending on the optimization level.
(gfc_handle_option): Handle -Wfunction-elimination and
-ffrontend-optimize.
2011-04-08 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/48448
* gfortran.dg/function_optimize_5.f90: New test.
From-SVN: r172215
