path: root/gcc/testsuite/go.test/go-test.exp

#   Copyright (C) 2009, 2010, 2011 Free Software Foundation, Inc.
#   Written by Ian Lance Taylor <iant@google.com>.

# 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/>.


# Test using the testsuite for the gc Go compiler.  In these tests the
# first line is a shell script to run.  That line expects the
# following environment variables to be set:
#   A   The file extension of the object file and the name of the executable
#   G   The name of the compiler
#   L   The name of the linker
#   F   The basename of the test
#   D   The directory of the test.
#
# Typical command lines:
# // $G $D/$F.go && $L $F.$A && ./$A.out
# // $G $D/$F.go && $L $F.$A || echo BUG: known to fail incorrectly
# // $G $D/$F.go && echo BUG: compilation succeeds incorrectly
# // $G $D/$F.go || echo BUG: compilation should succeed

load_lib go-dg.exp
load_lib go-torture.exp

# Implement errchk
proc errchk { test } {
    global dg-do-what-default
    global DEFAULT_GOCFLAGS
    global runtests

    set saved-dg-do-what-default ${dg-do-what-default}
    set dg-do-what-default compile
    set filename [file tail $test]
    if { "$filename" == "$test" } {
	set filename "errchk-$filename"
    }
    set fdin [open $test r]
    fconfigure $fdin -encoding binary
    set fdout [open $filename w]
    fconfigure $fdout -encoding binary
    while { [gets $fdin copy_line] >= 0 } {
	regsub "// \(GCCGO_\)?ERROR \"\(\[^\"\]*\)\".*$" $copy_line "// \{ dg-error \"\\2\" \}" out_line
	if [string match "*dg-error*.\**" $out_line] {
	    # I worked out the right number of backslashes by
	    # experimentation, not analysis.
	    regsub -all "\\.\\*" $out_line "\\\\\[ -~\\\\\]*" out_line
	}
	if [string match "*dg-error*\{*" $out_line] {
	    set index [string first "dg-error" $out_line]
	    regsub -start $index -all "\{" $out_line "\\\\\[\\\{\\\\\]" out_line
	}
	if [string match "*dg-error*\}*\}" $out_line] {
	    set index [string first "dg-error" $out_line]
	    regsub -start $index -all "\}\(.\)" $out_line "\\\\\[\\\}\\\\\]\\1" out_line
	}
	if [string match "*dg-error*\[.\]*" $out_line] {
	    set index [string first "dg-error" $out_line]
	    regsub -all "\\\[\\.\\\]" $out_line "\\\\\[.\\\\\]" out_line
	}
	puts $fdout $out_line
    }
    close $fdin
    close $fdout

    set hold_runtests $runtests
    set runtests "go-test.exp"
    go-dg-runtest $filename "-fno-show-column $DEFAULT_GOCFLAGS"
    set runtests $hold_runtests

    file delete $filename
    set dg-do-what-default ${saved-dg-do-what-default}
}

# This is an execution test which should fail.
proc go-execute-xfail { test } {
    global DEFAULT_GOCFLAGS
    global runtests

    set filename [file tail $test]
    set fdin [open $test r]
    set fdout [open $filename w]
    puts $fdout "// { dg-do run { xfail *-*-* } }"
    while { [gets $fdin copy_line] >= 0 } {
	puts $fdout $copy_line
    }
    close $fdin
    close $fdout

    set hold_runtests $runtests
    set runtests "go-test.exp"
    go-dg-runtest $filename "-w $DEFAULT_GOCFLAGS"
    set runtests $hold_runtests

    file delete $filename
}

# N.B. Keep in sync with libgo/configure.ac.
proc go-set-goarch { } {
    global target_triplet

    switch -glob $target_triplet {
	"arm*-*-*" -
	"ep9312*-*-*" -
	"strongarm*-*-*" -
	"xscale-*-*" {
	    set goarch "arm"
	}
	"i?86-*-*" -
	"x86_64-*-*" {
	    if [check_effective_target_ilp32] {
		set goarch "386"
	    } else {
		set goarch "amd64"
	    }
	}
	"sparc*-*-*" {
	    if [check_effective_target_ilp32] {
		set goarch "sparc"
	    } else {
		set goarch "sparcv9"
	    }
	}
	default {
	    perror "$target_triplet: unhandled architecture"
	    return ""
	}	
    }
    verbose -log "Setting GOARCH=$goarch" 1
    setenv GOARCH $goarch
}

proc go-gc-tests { } {
    global srcdir subdir
    global runtests
    global GCC_UNDER_TEST
    global TOOL_OPTIONS
    global TORTURE_OPTIONS
    global dg-do-what-default
    global go_execute_args
    global target_triplet

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

    # Set GOARCH for tests that need it.
    go-set-goarch

    # Running all the torture options takes too long and, since the
    # frontend ignores the standard options, it doesn't significantly
    # improve testing.
    set saved_torture_options $TORTURE_OPTIONS
    set TORTURE_OPTIONS [ list { -O2 -g }]

    set saved-dg-do-what-default ${dg-do-what-default}

    set testdir [pwd]

    set tests [lsort [find $srcdir/$subdir *.go]]
    foreach test $tests {
	if ![runtest_file_p $runtests $test] {
	    continue
	}

	# Skip the files in bench and garbage; they are not tests.
	if [string match "*go.test/test/bench/*" $test] {
	    continue
	}
	if [string match "*go.test/test/garbage/*" $test] {
	    continue
	}

	# Skip files in sub-subdirectories: they are components of
	# other tests.
	if [string match "*go.test/test/*/*/*" $test] {
	    continue
	}

	set name [dg-trim-dirname $srcdir $test]

	# Skip certain tests if target is RTEMS OS.
	if [istarget "*-*-rtems*"] {
	    if { [string match "*go.test/test/args.go" \
		   $test] \
		 || [string match "*go.test/test/env.go" \
		   $test] } {
		    untested "$name: uses the command-line or environment variables"
		    continue
	    }

	    if { [string match "*go.test/test/stack.go" \
		   $test] \
		 || [string match "*go.test/test/peano.go" \
		   $test] \
		 || [string match "*go.test/test/chan/goroutines.go" \
		   $test] } {
		    untested "$name: has very high memory requirement"
		    continue
	    }
	}

	set fd [open $test r]

	set lines_ok 1

	while 1 {
	    if { [gets $fd test_line] < 0 } {
		close $fd
		clone_output "$test: could not read first line"
		unresolved $name
		set lines_ok 0
		break
	    }

	    if { [ string match "*nacl*exit 0*" $test_line ] \
		     || [ string match "*exit 0*nacl*" $test_line ] \
		     || [ string match "*Android*exit 0*" $test_line ] \
		     || [ string match "*exit 0*Android*" $test_line ] } {
		continue
	    }

	    break
	}

	if { $lines_ok == 0 } {
	    continue
	}

	set lineno 1
	set test_line1 $test_line

	while { [eval "string match \"//*&&\" \${test_line$lineno}"] } {
	    set lineno [expr $lineno + 1]
	    if { [eval "gets \$fd test_line$lineno"] < 0 } {
		close $fd
		clone_output "$test: could not read line $lineno"
		unresolved $name
		set lines_ok 0
		break
	    }
	}
	if { $lines_ok == 0 } {
	    continue
	}

	close $fd

	set go_execute_args ""
	if { [regexp ".*\\\$A.out (\[^|&>\].*)\$" $test_line match progargs] } {
	    set go_execute_args $progargs
	    verbose -log "$test: go_execute_args is $go_execute_args"
	    set index [string last " $progargs" $test_line]
	    set test_line [string replace $test_line $index end]
	} elseif { [string match "*go.test/test/chan/goroutines.go" $test] \
		   && [getenv GCCGO_RUN_ALL_TESTS] == "" } {
	    # goroutines.go spawns by default 10000 threads, which is too much
	    # for many OSes.
	    if { [getenv GCC_TEST_RUN_EXPENSIVE] == "" } {
		set go_execute_args 64
	    } elseif { ![is_remote host] && ![is_remote target] } {
		# When using low ulimit -u limit, use maximum of
		# a quarter of that limit and 10000 even when running expensive
		# tests, otherwise parallel tests might fail after fork failures.
		set nproc [lindex [remote_exec host {sh -c ulimit\ -u}] 1]
		if { [string is integer -strict $nproc] } {
			set nproc [expr $nproc / 4]
			if { $nproc > 10000 } { set nproc 10000 }
			if { $nproc < 16 } { set nproc 16 }
			set go_execute_args $nproc
		}
	    }
	    if { "$go_execute_args" != "" } {
		verbose -log "$test: go_execute_args is $go_execute_args"
	    }
	}

	if { $test_line == "// \$G \$D/\$F\.go && \$L \$F\.\$A && \./\$A\.out >tmp.go &&" \
	     && $test_line2 == "// \$G tmp\.go && \$L tmp\.\$A && \./\$A\.out || echo BUG: 64bit" } {
	    # 64bit.go is a special case.
	    set go_execute_args ""
	    set hold_runtests $runtests
	    set runtests "go-test.exp"
	    set dg-do-what-default "link"
	    dg-test -keep-output $test "-O" "-w $DEFAULT_GOCFLAGS"
	    set output_file "./[file rootname [file tail $test]].exe"
	    set base "[file rootname [file tail $test]]"
	    if [isnative] {
		if { [catch "exec $output_file >$base-out.go"] != 0 } {
		    fail "$name execution"
		} else {
		    pass "$name execution"
		    file delete $base-out.x
		    go-torture-execute "./$base-out.go"
		}
		file delete $base-out.go
	    }
	    file delete $output_file
	    set runtests $hold_runtests
	} elseif { $test_line == "// \$G \$D/\$F.go && \$L \$F.\$A && ./\$A.out" \
		   || $test_line == "// \$G \$F.go && \$L \$F.\$A && ./\$A.out" \
		   || $test_line == "// \$G \$F.go && \$L \$F.\$A &&./\$A.out" \
		   || $test_line == "// \$G \$D/\$F.go && \$L \$F.\$A && \$A.out" \
		   || [string match \
			   "// \$G \$D/\$F.go && \$L \$F.\$A && ./\$A.out || echo BUG*" \
			   $test_line]
		   || [string match \
			   "// \$G \$F.go && \$L \$F.\$A && (./\$A.out || echo BUG*" \
			   $test_line]
		   || [string match \
			   "// \$G \$D/\$F.go && \$L \$F.\$A && (./\$A.out || echo BUG*" \
			   $test_line]
		   || [string match \
			   "// \$G \$F.go && \$L \$F.\$A && GOMAXPROCS=* ./\$A.out" \
			   $test_line]
		   || [string match \
			   "// \$G \$D/\$F.go && \$L \$F.\$A && ./\$A.out >* || echo BUG*" \
			   $test_line] } {
	    # This is a vanilla execution test.
	    go-torture-execute $test
	    file delete core [glob -nocomplain core.*]
	} elseif { [string match \
			"// \$G \$D/\$F.go && \$L \$F.\$A || echo BUG*" \
			$test_line] \
		   || [string match "// \$G \$F.go && \$L \$F.\$A  #*" \
			   $test_line] } {
	    # This is a vanilla compile and link test.
	    set dg-do-what-default "link"
	    go-dg-runtest $test "-w $DEFAULT_GOCFLAGS"
	} elseif { [string match "// \$G \$D/\$F.go" $test_line] \
		   || [string match "// \$G \$D/\$F.go || echo BUG*" \
			   $test_line] \
		   || [string match "// \$G \$F.go || echo BUG*" \
			   $test_line] \
		   || [string match "// ! \$G \$D/\$F.go && echo BUG*" \
			   $test_line] } {
	    # This is a vanilla compile test.
	    set dg-do-what-default "assemble"
	    go-dg-runtest $test "-w $DEFAULT_GOCFLAGS"
	} elseif { [string match "// \$G \$D/\$F.go && echo BUG*" \
			$test_line] \
		   || $test_line == "// ! \$G \$D/\$F.go >/dev/null" \
		   || $test_line == "// ! \$G \$D/\$F.go" \
		   || $test_line == "// ! \$G \$F.go" \
	           || [string match "// ! \$G \$D/\$F.go || echo BUG*" \
			$test_line] } {
	    # This is a compile test which should fail.
	    set dg-do-what-default "assemble"
	    setup_xfail "*-*-*"
	    go-dg-runtest $test "-w $DEFAULT_GOCFLAGS"
	} elseif { [string match "// \$G \$D/\$F.go && \$L \$F.\$A && ! ./\$A.out" \
			$test_line] \
		   || [string match "// \$G \$D/\$F.go && \$L \$F.\$A && ! ./\$A.out || echo BUG: *" \
			$test_line] \
		   || [string match "// \$G \$D/\$F.go && \$L \$F.\$A && (! ./\$A.out || echo BUG: *" \
			$test_line] \
		   || ($test_line == "// \$G \$D/\$F.go && \$L \$F.\$A &&"
		       && $test_line2 == "//	((! sh -c ./\$A.out) >/dev/null 2>&1 || echo BUG: should fail)") } {
	    go-execute-xfail $test
	} elseif { [string match "// errchk \$G \$F.go" $test_line] \
		    || [string match "// errchk \$G -e \$F.go" $test_line] \
		    || [string match "// errchk \$G \$D/\$F.go" $test_line] \
		    || [string match "//errchk \$G \$D/\$F.go" $test_line] \
		    || [string match "// errchk \$G -e \$D/\$F.go" \
			    $test_line] \
		    || [string match "// ! errchk \$G \$D/\$F.go" $test_line] \
		    || [string match "// ! errchk \$G -e \$D/\$F.go" \
			    $test_line] \
		    || [string match "// errchk \$G \$F.go || true" \
			    $test_line] \
		    || [string match "// errchk \$G \$D/\$F.go || true" \
			    $test_line] \
		    || [string match "// errchk \$G -e \$D/\$F.go || true" \
			    $test_line] \
		    || [string match "// errchk \$G \$D/\$F.go || echo BUG*" \
			    $test_line] } {
	    errchk $test
	} elseif { [string match \
			"// \$G \$D/\$F.dir/bug0.go && \$G \$D/\$F.dir/bug1.go || echo BUG*" \
			$test_line] } {
	    set hold_runtests $runtests
	    set runtests "go-test.exp"
	    set dg-do-what-default "assemble"
	    regsub "\\.go$" $test ".dir/bug0.go" file1
	    dg-test -keep-output $file1 "-O" "-w $DEFAULT_GOCFLAGS"
	    regsub "\\.go$" $test ".dir/bug1.go" file2
	    dg-test $file2 "-O" "-w $DEFAULT_GOCFLAGS"
	    file delete "[file rootname [file tail $file1]].o"
	    set runtests $hold_runtests
	} elseif { [string match \
			"// \$G \$D/\$F.dir/bug0.go && errchk \$G \$D/\$F.dir/bug1.go" \
			$test_line] \
		       || [string match \
			       "// \$G \$D/\$F.dir/p1.go && \$G \$D/\$F.dir/p2.go" \
			       $test_line] } {
	    if { [string match \
		      "// \$G \$D/\$F.dir/p1.go && \$G \$D/\$F.dir/p2.go" \
		      $test_line] } {
		set name1 "p1.go"
		set name2 "p2.go"
	    } else {
		set name1 "bug0.go"
		set name2 "bug1.go"
	    }
	    set hold_runtests $runtests
	    set runtests "go-test.exp"
	    set dg-do-what-default "assemble"
	    regsub "\\.go$" $test ".dir/$name1" file1
	    dg-test -keep-output $file1 "-O" "-w $DEFAULT_GOCFLAGS"
	    regsub "\\.go$" $test ".dir/$name2" file2
	    errchk $file2
	    file delete "[file rootname [file tail $file1]].o"
	    set runtests $hold_runtests
	} elseif { [string match \
			"// \$G \$D/\$F.dir/bug0.go && (! \$G \$D/\$F.dir/bug1.go || echo BUG*" \
			$test_line] } {
	    set hold_runtests $runtests
	    set runtests "go-test.exp"
	    set dg-do-what-default "assemble"
	    regsub "\\.go$" $test ".dir/bug0.go" file1
	    dg-test -keep-output $file1 "-O" "-w $DEFAULT_GOCFLAGS"
	    regsub "\\.go$" $test ".dir/bug1.go" file2
	    setup_xfail "*-*-*"
	    dg-test $file2 "-O" "-w $DEFAULT_GOCFLAGS"
	    file delete "[file rootname [file tail $file1]].o"
	    set runtests $hold_runtests
	} elseif { [string match \
			"// \$G \$D/\$F.dir/bug0.go && \$G \$D/\$F.dir/bug1.go && (! \$G \$D/\$F.dir/bug2.go || echo BUG*" \
			$test_line] } {
	    set hold_runtests $runtests
	    set runtests "go-test.exp"
	    set dg-do-what-default "assemble"
	    regsub "\\.go$" $test ".dir/bug0.go" file1
	    dg-test -keep-output $file1 "-O" "-w $DEFAULT_GOCFLAGS"
	    regsub "\\.go$" $test ".dir/bug1.go" file2
	    dg-test -keep-output $file2 "-O" "-w $DEFAULT_GOCFLAGS"
	    regsub "\\.go$" $test ".dir/bug2.go" file3
	    setup_xfail "*-*-*"
	    dg-test $file3 "-O" "-w $DEFAULT_GOCFLAGS"
	    file delete "[file rootname [file tail $file1]].o"
	    file delete "[file rootname [file tail $file2]].o"
	    set runtests $hold_runtests
	} elseif { [string match \
			"// \$G \$D/\$F.dir/bug0.go && \$G \$D/\$F.dir/bug1.go && errchk \$G \$D/\$F.dir/bug2.go" \
			$test_line] } {
	    set hold_runtests $runtests
	    set runtests "go-test.exp"
	    set dg-do-what-default "assemble"
	    regsub "\\.go$" $test ".dir/bug0.go" file1
	    dg-test -keep-output $file1 "-O" "-w $DEFAULT_GOCFLAGS"
	    regsub "\\.go$" $test ".dir/bug1.go" file2
	    dg-test -keep-output $file2 "-O" "-w $DEFAULT_GOCFLAGS"
	    regsub "\\.go$" $test ".dir/bug2.go" file3
	    errchk $file3
	    file delete "[file rootname [file tail $file1]].o"
	    file delete "[file rootname [file tail $file2]].o"
	    set runtests $hold_runtests
	} elseif { [string match \
			"// \$G \$D/bug160.dir/x.go && \$G \$D/bug160.dir/y.go && \$L y.\$A && ./\$A.out" \
			$test_line] } {
	    set hold_runtests $runtests
	    set runtests "go-test.exp"
	    set dg-do-what-default "assemble"
	    regsub "\\.go$" $test ".dir/x.go" file1
	    dg-test -keep-output $file1 "-O" "-w $DEFAULT_GOCFLAGS"
	    set ofile1 "[file rootname [file tail $file1]].o"
	    regsub "\\.go$" $test ".dir/y.go" file2
	    dg-test -keep-output $file2 "-O" "-w $DEFAULT_GOCFLAGS"
	    set ofile2 "[file rootname [file tail $file2]].o"
	    set dg-do-what-default "link"
	    set output_file "./[file rootname [file tail $test]].exe"
	    set comp_output [go_target_compile "$ofile1 $ofile2" \
				 $output_file "executable" "$DEFAULT_GOCFLAGS"]
	    set comp_output [go-dg-prune $target_triplet $comp_output]
	    verbose -log $comp_output
	    set result [go_load "$output_file" "" ""]
	    set status [lindex $result 0]
	    $status $name
	    file delete $ofile1 $ofile2 $output_file
	    set runtests $hold_runtests
	} elseif { [string match \
			"// \$G \$D/bug191.dir/a.go && \$G \$D/bug191.dir/b.go && \$G \$D/\$F.go && \$L \$F.\$A" \
			$test_line] } {
	    set hold_runtests $runtests
	    set runtests "go-test.exp"
	    set dg-do-what-default "assemble"
	    regsub "\\.go$" $test ".dir/a.go" file1
	    dg-test -keep-output $file1 "-O" "-w $DEFAULT_GOCFLAGS"
	    set ofile1 "[file rootname [file tail $file1]].o"
	    regsub "\\.go$" $test ".dir/b.go" file2
	    dg-test -keep-output $file2 "-O" "-w $DEFAULT_GOCFLAGS"
	    set ofile2 "[file rootname [file tail $file2]].o"
	    dg-test -keep-output "$test" "-O" "-w $DEFAULT_GOCFLAGS"
	    set ofile3 "[file rootname [file tail $test]].o"
	    set dg-do-what-default "link"
	    set output_file "./[file rootname [file tail $test]].exe"
	    set comp_output [go_target_compile "$ofile1 $ofile2 $ofile3" \
				 $output_file "executable" "$DEFAULT_GOCFLAGS"]
	    set comp_output [go-dg-prune $target_triplet $comp_output]
	    if [string match "" $comp_output] {
		pass $name
	    } else {
		verbose -log $comp_output
		fail $name
	    }
	    file delete $ofile1 $ofile2 $ofile3 $output_file
	    set runtests $hold_runtests
	} elseif { [string match \
			"// \$G \$D/embed0.go && \$G \$D/\$F.go && \$L \$F.\$A && ./\$A.out" \
			$test_line ] } {
	    set hold_runtests $runtests
	    set runtests "go-test.exp"
	    set dg-do-what-default "assemble"
	    regsub "/\[^/\]*$" $test "/embed0.go" file1
	    dg-test -keep-output $file1 "-O" "-w $DEFAULT_GOCFLAGS"
	    set ofile1 "[file rootname [file tail $file1]].o"
	    dg-test -keep-output $test "-O" "-w $DEFAULT_GOCFLAGS"
	    set ofile2 "[file rootname [file tail $test]].o"
	    set output_file "./[file rootname [file tail $test]].exe"
	    set comp_output [go_target_compile "$ofile1 $ofile2" \
				 $output_file "executable" "$DEFAULT_GOCFLAGS"]
	    set comp_output [go-dg-prune $target_triplet $comp_output]
	    if [string match "" $comp_output] {
		set result [go_load "$output_file" "" ""]
		set status [lindex $result 0]
		$status $name
	    } else {
		verbose -log $comp_output
		fail $name
	    }
	    file delete $ofile1 $ofile2 $output_file
	    set runtests $hold_runtests
	} elseif { [string match \
			"// \$G \$D/\$F.dir/chanbug.go && \$G -I. \$D/\$F.dir/chanbug2.go" \
			$test_line] } {
	    set hold_runtests $runtests
	    set runtests "go-test.exp"
	    set dg-do-what-default "assemble"
	    regsub "\\.go$" $test ".dir/chanbug.go" file1
	    dg-test -keep-output $file1 "-O" "-w $DEFAULT_GOCFLAGS"
	    regsub "\\.go$" $test ".dir/chanbug2.go" file2
	    dg-test $file2 "-O" "-w $DEFAULT_GOCFLAGS"
	    file delete "[file rootname [file tail $file1]].o"
	    set runtests $hold_runtests
	} elseif { [string match \
			"// (! \$G \$D/\$F.go) | grep 'initialization loop' *" \
			$test_line] } {
	    set dg-do-what-default "assemble"
	    setup_xfail "*-*-*"
	    go-dg-runtest $test "-w $DEFAULT_GOCFLAGS"
	} elseif { [string match \
			"// \$G \$D/\$F.dir/x.go && errchk \$G \$D/\$F.dir/y.go" \
			$test_line] } {
	    set hold_runtests $runtests
	    set runtests "go-test.exp"
	    set dg-do-what-default "assemble"
	    regsub "\\.go$" $test ".dir/x.go" file1
	    dg-test -keep-output $file1 "-O" "-w $DEFAULT_GOCFLAGS"
	    regsub "\\.go$" $test ".dir/y.go" file2
	    errchk $file2
	    file delete "[file rootname [file tail $file1]].o"
	    set runtests $hold_runtests
	} elseif { [string match "// true*" $test_line] } {
	    # Not a real test, just ignore.
	} elseif { $test_line == "// \$G \$D/\$F.dir/bug0.go &&" \
		       && $test_line2 == "// \$G \$D/\$F.dir/bug1.go &&" \
		       && $test_line3 == "// \$G \$D/\$F.dir/bug2.go &&" \
		       && $test_line4 == "// errchk \$G -e \$D/\$F.dir/bug3.go &&" \
		       && $test_line5 == "// \$L bug2.\$A &&" \
		       && [string match "// ./\$A.out || echo BUG*" $test_line6] } {
	    set hold_runtests $runtests
	    set runtests "go-test.exp"
	    set dg-do-what-default "assemble"
	    regsub "\\.go$" $test ".dir/bug0.go" file0
	    dg-test -keep-output $file0 "-O -fgo-prefix=bug0" "-w $DEFAULT_GOCFLAGS"
	    set ofile0 "[file rootname [file tail $file0]].o"
	    regsub "\\.go$" $test ".dir/bug1.go" file1
	    dg-test -keep-output $file1 "-O -fgo-prefix=bug1" "-w $DEFAULT_GOCFLAGS"
	    set ofile1 "[file rootname [file tail $file1]].o"
	    regsub "\\.go$" $test ".dir/bug2.go" file2
	    dg-test -keep-output $file2 "-O" "-w $DEFAULT_GOCFLAGS"
	    set ofile2 "[file rootname [file tail $file2]].o"
	    regsub "\\.go$" $test ".dir/bug3.go" file3
	    errchk $file3
	    set output_file "./[file rootname [file tail $test]].exe"
	    set comp_output [go_target_compile "$ofile0 $ofile1 $ofile2" \
				 $output_file "executable" "$DEFAULT_GOCFLAGS"]
	    set comp-output [go-dg-prune $target_triplet $comp_output]
	    if [string match "" $comp_output] {
		set result [go_load "$output_file" "" ""]
		set status [lindex $result 0]
		$status $name
	    } else {
		verbose -log $comp_output
		fail $name
	    }
	    file delete $ofile0 $ofile1 $ofile2 $output_file
	    set runtests $hold_runtests
	} elseif { $test_line == "// \$G \$D/import2.go && \$G \$D/\$F\.go" } {
	    set hold_runtests $runtests
	    set runtests "go-test.exp"
	    set dg-do-what-default "assemble"
	    regsub "/\[^/\]*$" $test "/import2.go" file1
	    dg-test -keep-output $file1 "-O" "-w $DEFAULT_GOCFLAGS"
	    set ofile1 "[file rootname [file tail $file1]].o"
	    dg-test $test "-O" "-w $DEFAULT_GOCFLAGS"
	    file delete $ofile1
	    set runtests $hold_runtests
	} elseif { $test_line == "// \$G \$D/ddd2.go && \$G \$D/\$F.go && \$L \$F.\$A && ./\$A.out" } {
	    set hold_runtests $runtests
	    set runtests "go-test.exp"
	    set dg-do-what-default "assemble"
	    regsub "/\[^/\]*$" $test "/ddd2.go" file1
	    dg-test -keep-output $file1 "-O" "-w $DEFAULT_GOCFLAGS"
	    set ofile1 "[file rootname [file tail $file1]].o"
	    dg-test -keep-output $test "-O" "-w $DEFAULT_GOCFLAGS"
	    set ofile2 "[file rootname [file tail $test]].o"
	    set output_file "./[file rootname [file tail $test]].exe"
	    set comp_output [go_target_compile "$ofile1 $ofile2" \
				 $output_file "executable" "$DEFAULT_GOCFLAGS"]
	    set comp_output [go-dg-prune $target_triplet $comp_output]
	    if [string match "" $comp_output] {
		set result [go_load "$output_file" "" ""]
		set status [lindex $result 0]
		$status $name
	    } else {
		verbose -log $comp_output
		fail $name
	    }
	    file delete $ofile1 $ofile2 $output_file
	    set runtests $hold_runtests
	} elseif { $test_line == "// \$G \$D/\$F.go \$D/cmplxdivide1.go && \$L \$D/\$F.\$A && ./\$A.out" } {
	    regsub "/\[^/\]*$" $test "/cmplxdivide1.go" test2
	    set output_file "./[file rootname [file tail $test]].o"
	    set comp_output [go_target_compile "$test $test2" \
			     $output_file "executable" "$DEFAULT_GOCFLAGS"]
	    set comp_output [go-dg-prune $target_triplet $comp_output]
	    if [string match "" $comp_output] {
		set result [go_load "$output_file" "" ""]
		set status [lindex $result 0]
		$status $name
	    } else {
		verbose -log $comp_output
		fail $name
	    }
	    file delete $output_file
	} elseif { $test_line == "// \$G \$D/\$F.go && \$L \$F.\$A &&" \
		       && $test_line2 == "// ./\$A.out -pass 0 >tmp.go && \$G tmp.go && \$L -o tmp1.\$A tmp.\$A && ./tmp1.\$A &&" \
		       && $test_line3 == "// ./\$A.out -pass 1 >tmp.go && errchk \$G -e tmp.go &&" \
		       && $test_line4 == "// ./\$A.out -pass 2 >tmp.go && errchk \$G -e tmp.go" } {
	    set go_execute_args ""
	    set hold_runtests $runtests
	    set runtests "go-test.exp"
	    set dg-do-what-default "link"
	    dg-test -keep-output $test "-O" "-w $DEFAULT_GOCFLAGS"
	    set output_file "./[file rootname [file tail $test]].exe"
	    if [isnative] {
		if { [catch "exec $output_file -pass 0 >tmp.go"] != 0 } {
		    fail "$name execution 0"
		} else {
		    pass "$name execution 0"
		    file delete tmp.x
		    go-torture-execute "./tmp.go"
		}
		if { [catch "exec $output_file -pass 1 >tmp.go"] != 0 } {
		    fail "$name execution 1"
		} else {
		    pass "$name execution 1"
		    errchk tmp.go
		}
		if { [catch "exec $output_file -pass 2 >tmp.go"] != 0 } {
		    fail "$name execution 2"
		} else {
		    pass "$name execution 2"
		    errchk tmp.go
		}
		file delete tmp.go
	    }
	    file delete $output_file
	    set runtests $hold_runtests
	} elseif { $test_line == "// \$G \$D/\$F.go && \$L \$F.\$A && ./\$A.out >tmp.go &&" \
			&& $test_line2 == "// errchk \$G -e tmp.go" } {
	    set go_execute_args ""
	    set hold_runtests $runtests
	    set runtests "go-test.exp"
	    set dg-do-what-default "link"
	    dg-test -keep-output $test "-O" "-w $DEFAULT_GOCFLAGS"
	    set output_file "./[file rootname [file tail $test]].exe"
	    if [isnative] {
		if { [catch "exec $output_file >tmp.go"] != 0 } {
		    fail "$name execution"
		} else {
		    pass "$name execution"
		    file delete tmp.x
		    errchk tmp.go
		}
	    }
	    file delete $output_file
	    set runtests $hold_runtests
	} elseif { $test_line == "// # generated by cmplxdivide.c" } {
	    # Ignore.
	} elseif { $test_line == "// \$G \$D/bug302.dir/p.go && gopack grc pp.a p.\$A && \$G \$D/bug302.dir/main.go" \
		   || $test_line == "// \$G \$D/empty.go && errchk \$G \$D/\$F.go" } {
	    # These tests import the same package under two different
	    # names, which gccgo does not support.
	} elseif { $test_line == "// \$G -S \$D/\$F.go | egrep initdone >/dev/null && echo FAIL || true" } {
	    # This tests whether initializers are written out
	    # statically.  gccgo does not provide a way to test that,
	    # as an initializer will be generated for any code which
	    # has global variables which need to be registered as GC
	    # roots.
	} else {
	    clone_output "$name: unrecognized test line: $test_line"
	    unsupported $name
	}

	set go_execute_args ""
    }

    set dg-do-what-default ${saved-dg-do-what-default}
    set TORTURE_OPTIONS $saved_torture_options
}

go-gc-tests