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#   Copyright (C) 2004, 2005, 2006, 2007, 2008 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
load_lib torture-options.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]:[column]: Error: Some error at (1) and (2)
    # or
    #  [name]:[line]:[column]: Error: Some error at (1) and (2)
    #  [name]:[line2]:[column]: 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 "(\[^\n\]*):(\[0-9\]+)\[\.:\](\[0-9\]*)(-\[0-9\]*)?:\n\n\[^\n\]*\n\[^\n\]*\n"
    set diag_regexp "(\[^\n\]*)\n"

    # Add column number if none exists
    set colnum_regexp "(Warning: |Error: )?(\[^\n\]*):(\[0-9\]+):(\[ \n\])"
    regsub -all $colnum_regexp $comp_output "\\2:\\3:0:\\4\\1" comp_output

    set two_loci "$locus_regexp$locus_regexp$diag_regexp"
    set single_locus "$locus_regexp$diag_regexp"
    regsub -all $two_loci $comp_output "\\1:\\2:\\3: \\9\n\\5:\\6:\\7: \\9\n" comp_output
    regsub -all $single_locus $comp_output "\\1:\\2:\\3: \\5\n" comp_output

    # Add a line number if none exists
    regsub -all "(^|\n)(Warning: |Error: )" $comp_output "\\1:0:0: \\2" 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 DG_TORTURE_OPTIONS torture_with_loops

    torture-init
    set-torture-options $DG_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_with_loops
        } 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}
        }
    }

    torture-finish
}

proc gfortran-dg-debug-runtest { target_compile trivial opt_opts testcases } {
    global srcdir subdir DEBUG_TORTURE_OPTIONS

    if ![info exists DEBUG_TORTURE_OPTIONS] {
       set DEBUG_TORTURE_OPTIONS ""
       set type_list [list "-gstabs" "-gstabs+" "-gxcoff" "-gxcoff+" "-gcoff" "-gdwarf-2" ]
       foreach type $type_list {
           set comp_output [$target_compile \
                   "$srcdir/$subdir/$trivial" "trivial.S" assembly \
                   "additional_flags=$type"]
           if { [string match "exit status *" $comp_output] } {
               continue
           }
           if { [string match \
                       "* target system does not support the * debug format*" \
                       $comp_output]
           } {
               continue
           }
           remove-build-file "trivial.S"
           foreach level {1 "" 3} {
               if { ($type == "-gdwarf-2") && ($level != "") } {
                   lappend DEBUG_TORTURE_OPTIONS [list "${type}" "-g${level}"]
                   foreach opt $opt_opts {
                       lappend DEBUG_TORTURE_OPTIONS \
                               [list "${type}" "-g${level}" "$opt" ]
                   }
               } else {
                   lappend DEBUG_TORTURE_OPTIONS [list "${type}${level}"]
                   foreach opt $opt_opts {
                       lappend DEBUG_TORTURE_OPTIONS \
                               [list "${type}${level}" "$opt" ]
                   }
               }
           }
       }
    }

    verbose -log "Using options $DEBUG_TORTURE_OPTIONS"

    global runtests

    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
       }

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

       foreach flags $DEBUG_TORTURE_OPTIONS {
           set doit 1
           # gcc-specific checking removed here

           if { $doit } {
               verbose -log "Testing $nshort, $flags" 1
               dg-test $test $flags ""
           }
       }
    }
}