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# Copyright (C) 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 GCC; see the file COPYING3.  If not see
# <http://www.gnu.org/licenses/>.

# We set LC_ALL and LANG to C so that we get the same error messages as expected.
setenv LC_ALL C
setenv LANG C

# Run the LANGUAGE compiler with GCC_OPTIONS and inspect the compiler
# output to make sure that they match the newline-separated patterns
# in COMPILER_PATTERNS but not the patterns in COMPILER_NON_PATTERNS.
# In case of failure, xfail if XFAIL is nonempty.

proc check_for_options {language gcc_options compiler_patterns compiler_non_patterns expected_failure} {
    set filename test-[pid]
    set fd [open $filename.c w]
    puts $fd "int main (void) { return 0; }"
    close $fd
    remote_download host $filename.c

    set test "compiler driver $gcc_options option(s):"
    set gcc_options "\{additional_flags=$gcc_options\}"

    switch "$language" {
	"c" { set compiler cc1 }
	default { error "unknown language" }
    }
    set gcc_output [gcc_target_compile $filename.c $filename.x executable $gcc_options]
    remote_file build delete $filename.c $filename.x $filename.gcno

    foreach pattern [split $compiler_patterns "\n"] {
	if {$pattern ne ""} {
	    if {[regexp -- "$pattern" $gcc_output]} {
		pass "$test $pattern"
	    } else {
		if {$expected_failure ne ""} {
		    xfail "$test $pattern"
		} else {
		    fail "$test $pattern"
		}
	    }
	}
    }
    foreach pattern [split $compiler_non_patterns "\n"] {
	if {$pattern ne ""} {
	    if {![regexp -- "$pattern" $gcc_output]} {
		pass "$test $pattern"
	    } else {
		if {$expected_failure ne ""} {
		    xfail "$test $pattern"
		} else {
		    fail "$test $pattern"
		}
	    }
	}
    }
}