# Copyright (C) 2011-2023 Free Software Foundation, Inc.

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GCC; see the file COPYING3.  If not see
# <http://www.gnu.org/licenses/>.
#
# Contributed by Tobias Burnus <burnus@net-b.de>


# Test coarray support.
#
# For the compilation tests, all files are compiles with the
# option -fcoarray=single and with -fcoarray=lib
#
# For the link and execution tests, for -fcoarray=lib the
# libcaf_single library is linked. Additionally, with the
# required settings another CAF library is used.

# Load procedures from common libraries. 
load_lib gfortran-dg.exp

# If a testcase doesn't have special options, use these.
global DEFAULT_FFLAGS
if ![info exists DEFAULT_FFLAGS] then {
    set DEFAULT_FFLAGS " -pedantic-errors"
}

dg-init

global runtests
global DG_TORTURE_OPTIONS torture_with_loops

torture-init
set-torture-options $DG_TORTURE_OPTIONS

global gfortran_test_path
global gfortran_aux_module_flags
set gfortran_test_path $srcdir/$subdir
set gfortran_aux_module_flags $DEFAULT_FFLAGS
proc dg-compile-aux-modules { args } {
    global gfortran_test_path
    global gfortran_aux_module_flags
    if { [llength $args] != 2 } {
	error "dg-compile-aux-modules: needs one argument"
	return
    }

    set level [info level]
    if { [info procs dg-save-unknown] != [list] } {
	rename dg-save-unknown dg-save-unknown-level-$level
    }

    dg-test $gfortran_test_path/[lindex $args 1] "" $gfortran_aux_module_flags
    # cleanup-modules is intentionally not invoked here.

    if { [info procs dg-save-unknown-level-$level] != [list] } {
	rename dg-save-unknown-level-$level dg-save-unknown
    }
}

# Add -latomic only where supported.  Assume built-in support elsewhere.
set maybe_atomic_lib ""
if [check_effective_target_libatomic_available] {
    set maybe_atomic_lib "-latomic"
}

# Main loop.
foreach test [lsort [glob -nocomplain $srcdir/$subdir/*.\[fF\]{,90,95,03,08} ]] {
    # If we're only testing specific files and this isn't one of them, skip it.
    if ![runtest_file_p $runtests $test] then {
	continue
    }

# Enable if you want to test several options:
#    # look if this is dg-do-run test, in which case
#    # we cycle through the option list, otherwise we don't
#    if [expr [search_for $test "dg-do run"]] {
#	set option_list $torture_with_loops
#    } else {
#	set option_list [list { -O } ]
#    }
    set option_list [list { -O2 } ]

    set nshort [file tail [file dirname $test]]/[file tail $test]
    list-module-names $test

    foreach flags $option_list {
	verbose "Testing $nshort (single), $flags" 1
        set gfortran_aux_module_flags "-fcoarray=single $flags"
	dg-test $test "-fcoarray=single $flags $maybe_atomic_lib" "" 
	cleanup-modules ""
    }

    foreach flags $option_list {
	verbose "Testing $nshort (libcaf_single), $flags" 1
        set gfortran_aux_module_flags "-fcoarray=lib $flags -lcaf_single"
	dg-test $test "-fcoarray=lib $flags -lcaf_single $maybe_atomic_lib" ""
	cleanup-modules ""
    }
}
torture-finish
dg-finish