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#   Copyright (C) 1997, 1999, 2000, 2001, 2004, 2009

#   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 this program; see the file COPYING3.  If not see

# .

# Prune messages from g++ that aren't useful.

# Prune any messages matching ARGS[1] (a regexp) from test output.

proc dg-prune-output { args } {

    global additional_prunes

    if { [llength $args] != 2 } {

        error "[lindex $args 1]: need one argument"

        return

    }

    lappend additional_prunes [lindex $args 1]

}

proc libstdc++-dg-prune { system text } {

    global additional_prunes

    # Cygwin warns about -ffunction-sections

    regsub -all "(^|\n)\[^\n\]*: -ffunction-sections may affect debugging on some targets\[^\n\]*" $text "" text

    # Remove parts of warnings that refer to location of previous

    # definitions, etc as these confuse dejagnu

    regsub -all "(^|\n)(\[^\n\]*: )?In ((static member |lambda )?function|member|method|(copy )?constructor|destructor|instantiation|program|subroutine|block-data)\[^\n\]*" $text "" text

    regsub -all "(^|\n)\[^\n\]*(: )?At (top level|global scope):\[^\n\]*" $text "" text

    regsub -all "(^|\n)\[^\n\]*:   (recursively )?required \[^\n\]*" $text "" text

    regsub -all "(^|\n)\[^\n\]*:   . skipping \[0-9\]* instantiation contexts \[^\n\]*" $text "" text

    regsub -all "(^|\n)    inlined from \[^\n\]*" $text "" text

    # Why doesn't GCC need these to strip header context?

    regsub -all "(^|\n)In file included from \[^\n\]*" $text "" text

    regsub -all "(^|\n)\[ \t\]*from \[^\n\]*" $text "" text

    # Ignore informational notes.

    regsub -all "(^|\n)\[^\n\]*: note: \[^\n\]*" $text "" text

    # Ignore errata warning from IA64 assembler.

    regsub -all "(^|\n)\[^\n\]*: Additional NOP may be necessary to workaround Itanium processor A/B step errata" $text "" text

    regsub -all "(^|\n)\[^\n*\]*: Assembler messages:\[^\n\]*" $text "" text

    # Ignore harmless warnings from Xcode 3.2.x.

    regsub -all "(^|\n)\[^\n\]*ld: warning: can't add line info to anonymous symbol\[^\n\]*" $text "" text

    regsub -all "(^|\n)\[^\n\]*warning: DWARFDebugInfoEntry::AppendDependants\[^\n\]*AT_\[^\n\]*_bound\[^\n\]*FORM_ref4\[^\n\]*" $text "" text

    regsub -all "(^|\n)\[^\n\]*warning:\[^\n\]*TAG_variable:  AT_location\[^\n\]*didn't have valid function low pc\[^\n\]*" $text "" text

    # Ignore harmless warnings from Xcode 4.0.

    regsub -all "(^|\n)\[^\n\]*ld: warning: could not create compact unwind for\[^\n\]*" $text "" text

    foreach p $additional_prunes {

        if { [string length $p] > 0 } {

            # Following regexp matches a complete line containing $p.

            regsub -all "(^|\n)\[^\n\]*$p\[^\n\]*" $text "" text

        }

    }

    return $text

}