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#   Copyright (C) 2004, 2005, 2007 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/>.

load_lib gcc-dg.exp

# Define gfortran callbacks for dg.exp.

proc gfortran-dg-test { prog do_what extra_tool_flags } {
    set result \
        [gcc-dg-test-1 gfortran_target_compile $prog $do_what $extra_tool_flags]
    
    set comp_output [lindex $result 0]
    set output_file [lindex $result 1]

    # gfortran error messages look like this:
    #     [name]:[locus]:
    #
    #        some code
    #              1
    #     Error: Some error at (1)
    # or
    #     [name]:[locus]:
    #
    #       some code
    #              1
    #     [name]:[locus2]:
    #
    #       some other code
    #         2
    #     Error: Some error at (1) and (2)
    # or
    #     [name]:[locus]:
    #
    #       some code and some more code
    #              1       2
    #     Error: Some error at (1) and (2)
    #
    # Where [locus] is either [line] or [line].[columns] .
    #
    # We collapse these to look like:
    #  [name]:[line]: Error: Some error at (1) and (2)
    # or
    #  [name]:[line]: Error: Some error at (1) and (2)
    #  [name]:[line2]: Error: Some error at (1) and (2)
    # We proceed in two steps: first we deal with the form with two
    # different locus lines, then with the form with only one locus line.
    #
    # Note that these regexps only make sense in the combinations used below.
    # Note also that is imperative that we first deal with the form with
    # two loci.
    set locus_regexp "(\[^\n\]*):(\[0-9\]*)\[^\n\]*:\n\n\[^\n\]*\n\[^\n\]*\n"
    set diag_regexp "(\[^\n\]*)\n"

    set two_loci "$locus_regexp$locus_regexp$diag_regexp"
    set single_locus "$locus_regexp$diag_regexp"
    regsub -all $two_loci $comp_output "\\1:\\2: \\5\n\\3:\\4: \\5\n" comp_output
    regsub -all $single_locus $comp_output "\\1:\\2: \\3\n" comp_output

    return [list $comp_output $output_file]
}

proc gfortran-dg-prune { system text } {
    return [gcc-dg-prune $system $text]
}

# Utility routines.

# Modified dg-runtest that can cycle through a list of optimization options
# as c-torture does.
proc gfortran-dg-runtest { testcases default-extra-flags } {
    global runtests
    global TORTURE_OPTIONS

    foreach test $testcases {
        # If we're only testing specific files and this isn't one of
        # them, skip it.
        if ![runtest_file_p $runtests $test] {
            continue
        }

        # 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_OPTIONS
        } else {
            set option_list [list { -O } ]
        }

        set nshort [file tail [file dirname $test]]/[file tail $test]

        foreach flags $option_list {
            verbose "Testing $nshort, $flags" 1
            dg-test $test $flags ${default-extra-flags}
        }
    }
}