gcc/testsuite/go.test/go-test.exp

   1 #   Copyright (C) 2009-2021 Free Software Foundation, Inc.
   2 #   Written by Ian Lance Taylor <iant@google.com>.
   3
   4 # This program is free software; you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 3 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with GCC; see the file COPYING3.  If not see
  16 # <http://www.gnu.org/licenses/>.
  17
  18
  19 # Test using the testsuite for the gc Go compiler.  In these tests the
  20 # first line is a shell script to run.  That line expects the
  21 # following environment variables to be set:
  22 #   A   The file extension of the object file and the name of the executable
  23 #   G   The name of the compiler
  24 #   L   The name of the linker
  25 #   F   The basename of the test
  26 #   D   The directory of the test.
  27 #
  28 # Typical command lines:
  29 # // compile
  30 # // run
  31 # // $G $D/$F.go && $L $F.$A && ./$A.out
  32 # // $G $D/$F.go && $L $F.$A || echo BUG: known to fail incorrectly
  33 # // $G $D/$F.go && echo BUG: compilation succeeds incorrectly
  34 # // $G $D/$F.go || echo BUG: compilation should succeed
  35
  36 load_lib go-dg.exp
  37 load_lib go-torture.exp
  38 load_lib target-supports.exp
  39
  40 # Compare two files
  41 proc filecmp { file1 file2 testname } {
  42     set f1 [open $file1 r]
  43     set f2 [open $file2 r]
  44     set ok 1
  45     while { [gets $f1 line1] >= 0 } {
  46         if { [gets $f2 line2] < 0 } {
  47             verbose -log "output mismatch: $file2 shorter than $file1"
  48             set ok 0
  49             break
  50         }
  51         if { $line1 != $line2 } {
  52             verbose -log "output mismatch comparing $file1 and $file2"
  53             verbose -log "expected \"$line1\""
  54             verbose -log "got      \"$line2\""
  55             set ok 0
  56             break
  57         }
  58     }
  59     if { [gets $f2 line2] >= 0 } {
  60         verbose -log "output mismatch: $file1 shorter than $file2"
  61         set ok 0
  62     }
  63     close $f1
  64     close $f2
  65     if { ! $ok } {
  66         fail $testname
  67     } else {
  68         pass $testname
  69     }
  70 }
  71
  72 # Implement errchk
  73 proc errchk { test opts } {
  74     global dg-do-what-default
  75     global DEFAULT_GOCFLAGS
  76     global runtests
  77
  78     set saved-dg-do-what-default ${dg-do-what-default}
  79     set dg-do-what-default compile
  80     set filename [file tail $test]
  81     if { "$filename" == "$test" } {
  82         set filename "errchk-$filename"
  83     }
  84     set fdin [open $test r]
  85     fconfigure $fdin -encoding binary
  86     set fdout [open $filename w]
  87     fconfigure $fdout -encoding binary
  88     while { [gets $fdin copy_line] >= 0 } {
  89         if [string match "*////*" $copy_line] {
  90             puts $fdout $copy_line
  91             continue
  92         }
  93
  94         # Combine quoted strings in comments, so that
  95         # // ERROR "first error" "second error"
  96         # turns into
  97         # // ERROR "first error|second error"
  98         # This format is used by the master testsuite to recognize
  99         # multiple errors on a single line.  We don't require that all
 100         # the errors be present, but we do want to accept any of them.
 101         set changed ""
 102         while { $changed != $copy_line } {
 103             set changed $copy_line
 104             regsub {(// [^"]*"[^"]*)" "} $copy_line {\1|} out_line
 105             set copy_line $out_line
 106         }
 107
 108         set index [string first // $copy_line]
 109         set eindex [string first ERROR $copy_line]
 110         if { $index >= 0 && $eindex > $index } {
 111             # We're putting the regexp in curly braces, so replace any
 112             # curly braces in the regexp with hex escapes.
 113             regsub -start $index -all "\{" $copy_line {\x7b} copy_line
 114             regsub -start $index -all "\}" $copy_line {\x7d} copy_line
 115
 116             # Replace .* with [ -~]* because .* will eat newlines.
 117             # We can't easily use (?n) because this regexp will appear
 118             # in the middle of a large regexp.
 119             regsub -all {\.\*} $copy_line {[ -~]*} copy_line
 120         }
 121
 122         # Change
 123         #   // ERROR "string"
 124         # to
 125         #   // { dg-error {string} }
 126         # The latter is what go-dg-runtest expects.
 127         regsub {// (GCCGO_)?ERROR "([^"]*)"([^"]*)$} $copy_line "// \{ dg-error \{\\2\} \}\\3" out_line
 128
 129         puts $fdout $out_line
 130     }
 131     close $fdin
 132     close $fdout
 133
 134     set hold_runtests $runtests
 135     set runtests "go-test.exp"
 136     go-dg-runtest $filename "" "-fno-show-column $DEFAULT_GOCFLAGS $opts"
 137     set runtests $hold_runtests
 138
 139     file delete $filename
 140     set dg-do-what-default ${saved-dg-do-what-default}
 141 }
 142
 143 # This is an execution test which should fail.
 144 proc go-execute-xfail { test } {
 145     global DEFAULT_GOCFLAGS
 146     global runtests
 147
 148     set filename [file tail $test]
 149     set fdin [open $test r]
 150     set fdout [open $filename w]
 151     puts $fdout "// { dg-do run { xfail *-*-* } }"
 152     while { [gets $fdin copy_line] >= 0 } {
 153         puts $fdout $copy_line
 154     }
 155     close $fdin
 156     close $fdout
 157
 158     set hold_runtests $runtests
 159     set runtests "go-test.exp"
 160     go-dg-runtest $filename "" "-w $DEFAULT_GOCFLAGS"
 161     set runtests $hold_runtests
 162
 163     file delete $filename
 164 }
 165
 166 # N.B. Keep in sync with libgo/configure.ac.
 167 proc go-set-goarch { } {
 168     global target_triplet
 169
 170     switch -glob $target_triplet {
 171         "aarch64*-*-*" {
 172             set goarch "arm64"
 173         }
 174         "alpha*-*-*" {
 175             set goarch "alpha"
 176         }
 177         "arm*-*-*" -
 178         "ep9312*-*-*" -
 179         "strongarm*-*-*" -
 180         "xscale-*-*" {
 181             set goarch "arm"
 182         }
 183         "i?86-*-*" -
 184         "x86_64-*-*" {
 185             if [check_effective_target_ia32] {
 186                 set goarch "386"
 187             } elseif [check_effective_target_x32] {
 188                 set goarch "amd64p32"
 189             } else {
 190                 set goarch "amd64"
 191             }
 192         }
 193         "mips*-*-*" {
 194             if [check_no_compiler_messages mipso32 assembly {
 195                 #if _MIPS_SIM != _ABIO32
 196                 #error FOO
 197                 #endif
 198             }] {
 199                 set goarch "mips"
 200             } elseif [check_no_compiler_messages mipsn32 assembly {
 201                 #if _MIPS_SIM != _ABIN32
 202                 #error FOO
 203                 #endif
 204             }] {
 205                 set goarch "mips64p32"
 206             } elseif [check_no_compiler_messages mipsn64 assembly {
 207                 #if _MIPS_SIM != _ABI64
 208                 #error FOO
 209                 #endif
 210             }] {
 211                 set goarch "mips64"
 212             } else {
 213                 perror "$target_triplet: unrecognized MIPS ABI"
 214                 return ""
 215             }
 216
 217             if [istarget "mips*el-*-*"] {
 218                 append goarch "le"
 219             }
 220         }
 221         "powerpc*-*-*" {
 222             if [check_effective_target_ilp32] {
 223                 set goarch "ppc"
 224             } else {
 225                 if [istarget "powerpc64le-*-*"] {
 226                     set goarch "ppc64le"
 227                 } else {
 228                     set goarch "ppc64"
 229                 }
 230             }
 231         }
 232         "riscv64-*-*" {
 233             set goarch "riscv64"
 234         }
 235         "s390*-*-*" {
 236             if [check_effective_target_ilp32] {
 237                 set goarch "s390"
 238             } else {
 239                 set goarch "s390x"
 240             }
 241         }
 242         "sparc*-*-*" {
 243             if [check_effective_target_ilp32] {
 244                 set goarch "sparc"
 245             } else {
 246                 set goarch "sparc64"
 247             }
 248         }
 249         default {
 250             perror "$target_triplet: unhandled architecture"
 251             return ""
 252         }
 253     }
 254     verbose -log "Setting GOARCH=$goarch" 1
 255     setenv GOARCH $goarch
 256 }
 257
 258 # This be kept in sync with libgo/configure.ac.
 259 proc go-set-goos { } {
 260     global target_triplet
 261
 262     switch -glob $target_triplet {
 263         "*-*-darwin*" {
 264             set goos "darwin"
 265         }
 266         "*-*-freebsd*" {
 267             set goos "freebsd"
 268         }
 269         "*-*-irix6*" {
 270             set goos "irix"
 271         }
 272         "*-*-linux*" {
 273             set goos "linux"
 274         }
 275         "*-*-netbsd*" {
 276             set goos "netbsd"
 277         }
 278         "*-*-openbsd*" {
 279             set goos "openbsd"
 280         }
 281         "*-*-dragonfly*" {
 282             set goos "dragonfly"
 283         }
 284         "*-*-rtems*" {
 285             set goos "rtems"
 286         }
 287         "*-*-solaris2*" {
 288             set goos "solaris"
 289         }
 290         "*-*-aix*" {
 291             set goos "aix"
 292         }
 293         "*-*-gnu*" {
 294             set goos "hurd"
 295         }
 296         default {
 297             perror "$target_triplet: unhandled GOOS"
 298             return
 299         }
 300     }
 301     verbose -log "Setting GOOS=$goos" 1
 302     setenv GOOS $goos
 303 }
 304
 305 # Take a list of files and return a lists of lists, where each list is
 306 # the set of files in the same package.
 307 proc go-find-packages { test name files } {
 308     set packages [list]
 309     foreach f $files {
 310         set fd [open $f r]
 311         while 1 {
 312             if { [gets $fd line] < 0 } {
 313                 close $fd
 314                 clone_output "$test: could not read $f"
 315                 unresolved $name
 316                 return [list]
 317             }
 318
 319             if { [regexp "^package (\\w+)" $line match package] } {
 320                 set len [llength $packages]
 321                 for { set i 0 } { $i < $len } { incr i } {
 322                     set p [lindex $packages $i]
 323                     if { [lindex $p 0] == $package } {
 324                         lappend p $f
 325                         lset packages $i $p
 326                         break
 327                     }
 328                 }
 329                 if { $i >= $len } {
 330                     lappend packages [list $package $f]
 331                 }
 332
 333                 close $fd
 334                 break
 335             }
 336         }
 337     }
 338     return $packages
 339 }
 340
 341 proc go-gc-match { name } {
 342     verbose -log "go-gc-match $name"
 343     set idx [string first "," $name]
 344     if { $idx >= 0 } {
 345         set left [string range $name 0 [expr $idx - 1]]
 346         set right [string range $name [expr $idx + 1] end]
 347         return [expr [go-gc-match $left] && [go-gc-match $right]]
 348     }
 349     if { [string index $name 0] == "!" && [string index $name 1] == "!" } {
 350         return 0
 351     }
 352     if { [string index $name 0] == "!" } {
 353         return [expr ! [go-gc-match [string range $name 1 end]]]
 354     }
 355     if { $name == [getenv GOARCH] || $name == [getenv GOOS] || $name == "gccgo" } {
 356         return 1
 357     }
 358
 359     return 0
 360 }
 361
 362 proc go-gc-tests { } {
 363     global srcdir subdir
 364     global runtests
 365     global GCC_UNDER_TEST
 366     global TOOL_OPTIONS
 367     global TORTURE_OPTIONS
 368     global dg-do-what-default
 369     global go_compile_args
 370     global go_execute_args
 371     global target_triplet
 372
 373     # If a testcase doesn't have special options, use these.
 374     global DEFAULT_GOCFLAGS
 375     if ![info exists DEFAULT_GOCFLAGS] {
 376         set DEFAULT_GOCFLAGS " -pedantic-errors"
 377     }
 378
 379     set options ""
 380     lappend options "additional_flags=$DEFAULT_GOCFLAGS"
 381
 382     # Set GOARCH and GOOS for tests that need it.
 383     go-set-goarch
 384     go-set-goos
 385
 386     # Running all the torture options takes too long and, since the
 387     # frontend ignores the standard options, it doesn't significantly
 388     # improve testing.
 389     set saved_torture_options $TORTURE_OPTIONS
 390     set TORTURE_OPTIONS [list { -O2 -g }]
 391
 392     set saved-dg-do-what-default ${dg-do-what-default}
 393
 394     set testdir [pwd]
 395
 396     set tests [lsort [find $srcdir/$subdir *.go]]
 397     foreach test $tests {
 398         if ![runtest_file_p $runtests $test] {
 399             continue
 400         }
 401
 402         # Skip the files in bench; they are not tests.
 403         if [string match "*go.test/test/bench/*" $test] {
 404             continue
 405         }
 406
 407         # Skip the files in stress; they are not tests.
 408         if [string match "*go.test/test/stress/*" $test] {
 409             continue
 410         }
 411
 412         # Skip the files in safe; gccgo does not support safe mode.
 413         if [string match "*go.test/test/safe/*" $test] {
 414             continue
 415         }
 416
 417         # Skip files in sub-subdirectories: they are components of
 418         # other tests.
 419         if [string match "*go.test/test/*/*/*" $test] {
 420             continue
 421         }
 422
 423         # Skip files in *.dir subdirectories: they are components of
 424         # other tests.
 425         if [string match "*go.test/test/*.dir/*" $test] {
 426             continue
 427         }
 428
 429         set name [dg-trim-dirname $srcdir $test]
 430
 431         # Skip certain tests if target is RTEMS OS.
 432         if [istarget "*-*-rtems*"] {
 433             if { [string match "*go.test/test/args.go" $test] \
 434                  || [string match "*go.test/test/env.go" $test] } {
 435                     untested "$name: uses the command-line or environment variables"
 436                     continue
 437             }
 438
 439             if { [string match "*go.test/test/stack.go" $test] \
 440                  || [string match "*go.test/test/peano.go" $test] \
 441                  || [string match "*go.test/test/chan/goroutines.go" $test] } {
 442                     untested "$name: has very high memory requirement"
 443                     continue
 444             }
 445         }
 446
 447         # Handle certain tests in a target-dependant way.
 448         if { [istarget "alpha*-*-*"] || [istarget "sparc*-*-solaris*"] || [istarget "powerpc*-*-*"] || [istarget "s390*-*-*"] } {
 449             if { [string match "*go.test/test/nilptr.go" $test] } {
 450                 untested $test
 451                 continue
 452             }
 453         }
 454
 455         if [check_effective_target_pie_enabled] {
 456             untested $test
 457             continue
 458         }
 459
 460         if { [file tail $test] == "init1.go" } {
 461             # This tests whether GC runs during init, which for gccgo
 462             # it currently does not.
 463             untested $name
 464             continue
 465         }
 466
 467         if { [file tail $test] == "closure.go" } {
 468             # This tests whether function closures do any memory
 469             # allocation, which for gccgo they currently do.
 470             untested $name
 471             continue
 472         }
 473
 474         if { ( [file tail $test] == "select2.go" \
 475                    || [file tail $test] == "stack.go" \
 476                    || [file tail $test] == "peano.go" \
 477                    || [file tail $test] == "nilptr2.go" ) \
 478                  && ! [check_effective_target_split_stack] } {
 479             # These tests fails on targets without split stack.
 480             untested $name
 481             continue
 482         }
 483
 484         if [string match "*go.test/test/rotate\[0123\].go" $test] {
 485             # These tests produces a temporary file that takes too long
 486             # to compile--5 minutes on my laptop without optimization.
 487             # When compiling without optimization it tests nothing
 488             # useful, since the point of the test is to see whether
 489             # the compiler generates rotate instructions.
 490             untested $name
 491             continue
 492         }
 493
 494         if { [file tail $test] == "bug347.go" \
 495                  || [file tail $test] == "bug348.go" } {
 496             # These tests don't work if the functions are inlined.
 497             set TORTURE_OPTIONS [list { -O0 -g }]
 498         }
 499
 500         set fd [open $test r]
 501
 502         set lines_ok 1
 503
 504         set test_line ""
 505         while 1 {
 506             if { [gets $fd file_line] < 0 } {
 507                 if [eof $fd] {
 508                     break
 509                 }
 510                 clone_output "$test: read failed"
 511                 unresolved $name
 512                 set lines_ok 0
 513                 break
 514             }
 515
 516             if { [ string match "*nacl*exit 0*" $file_line ] \
 517                      || [ string match "*exit 0*nacl*" $file_line ] \
 518                      || [ string match "*Android*exit 0*" $file_line ] \
 519                      || [ string match "*exit 0*Android*" $file_line ] \
 520                      || [ string match "*\"\$GOOS\" == windows*" $file_line ] } {
 521                 continue
 522             }
 523
 524             if ![string match "// *" $file_line] {
 525                 if { $file_line != "" } {
 526                     break
 527                 }
 528                 continue
 529             }
 530
 531             if { [ string match "// +build *" $file_line ] } {
 532                 set words [split $file_line]
 533                 set matches 0
 534                 for { set idx 2 } { $idx < [llength $words] } { incr idx } {
 535                     if { [go-gc-match [lindex $words $idx]] } {
 536                         set matches 1
 537                         break
 538                     }
 539                 }
 540                 if { $matches == 1 } {
 541                     continue
 542                 }
 543                 unsupported $name
 544                 set lines_ok 0
 545                 break
 546             }
 547
 548             if { $test_line == "" } {
 549                 set test_line $file_line
 550             }
 551         }
 552
 553         close $fd
 554
 555         if { $lines_ok == 0 } {
 556             continue
 557         }
 558
 559         # runtest_file_p is already run above, and the code below can run
 560         # runtest_file_p again, make sure everything for this test is
 561         # performed if the above runtest_file_p decided this runtest
 562         # instance should execute the test
 563         gcc_parallel_test_enable 0
 564
 565         set go_compile_args ""
 566         set go_execute_args ""
 567         if { [regexp "// run (\[^|&>2\].*)\$" $test_line match progargs] \
 568                  && ! [string match "*.go*" "$progargs"] } {
 569             set go_execute_args $progargs
 570             verbose -log "$test: go_execute_args is $go_execute_args"
 571             set index [string last " $progargs" $test_line]
 572             set test_line [string replace $test_line $index end]
 573         } elseif { [string match "*go.test/test/chan/goroutines.go" $test] \
 574                    && [getenv GCCGO_RUN_ALL_TESTS] == "" } {
 575             # goroutines.go spawns by default 10000 threads, which is too much
 576             # for many OSes.
 577             if { [getenv GCC_TEST_RUN_EXPENSIVE] == "" } {
 578                 set go_execute_args 64
 579             } elseif { ![is_remote host] && ![is_remote target] } {
 580                 # When using low ulimit -u limit, use maximum of
 581                 # a quarter of that limit and 10000 even when running expensive
 582                 # tests, otherwise parallel tests might fail after fork failures.
 583                 set nproc [lindex [remote_exec host {sh -c ulimit\ -u}] 1]
 584                 if { [string is integer -strict $nproc] } {
 585                         set nproc [expr $nproc / 4]
 586                         if { $nproc > 10000 } { set nproc 10000 }
 587                         if { $nproc < 16 } { set nproc 16 }
 588                         set go_execute_args $nproc
 589                 }
 590             }
 591             if { "$go_execute_args" != "" } {
 592                 verbose -log "$test: go_execute_args is $go_execute_args"
 593             }
 594         }
 595
 596         if { $test_line == "// compile"
 597              || $test_line == "// echo bug395 is broken  # takes 90+ seconds to break" } {
 598             # This is a vanilla compile test.
 599             set dg-do-what-default "assemble"
 600             go-dg-runtest $test "" "-w $DEFAULT_GOCFLAGS"
 601         } elseif { $test_line == "// run"
 602                    || $test_line == "// \$G \$F.go && \$L \$F.\$A && ./\$A.out" } {
 603             # This is a vanilla execution test.
 604             go-torture-execute $test
 605             file delete core [glob -nocomplain core.*]
 606         } elseif { $test_line == "// build" } {
 607             # This is a vanilla compile and link test.
 608             set dg-do-what-default "link"
 609             go-dg-runtest $test "" "-w $DEFAULT_GOCFLAGS"
 610         } elseif { [string match "// runoutput*" $test_line] \
 611                        || ($test_line == "// \$G \$D/\$F.go && \$L \$F.\$A &&"
 612                            && $test_line2 == "// ./\$A.out >tmp.go && \$G tmp.go && \$L -o \$A.out1 tmp.\$A && ./\$A.out1") } {
 613             # Run the test to get a .go program to run.
 614             set go_execute_args ""
 615             set hold_runtests $runtests
 616             set runtests "go-test.exp"
 617             set files [list]
 618             if { [string match "// runoutput*" $test_line] } {
 619                 set args ""
 620                 regsub "// runoutput\(.*\)" $test_line "\\1" args
 621                 foreach f $args {
 622                     lappend files "[file dirname $test]/$f"
 623                 }
 624             }
 625             set dg-do-what-default "link"
 626             dg-test -keep-output $test "-O" "$files -w $DEFAULT_GOCFLAGS"
 627             set output_file "./[file rootname [file tail $test]].exe"
 628             set base "[file rootname [file tail $test]]"
 629             if [isnative] {
 630                 if { [catch "exec $output_file >$base-out.go"] != 0 } {
 631                     fail "$name execution"
 632                 } else {
 633                     pass "$name execution"
 634                     file delete $base-out.x
 635                     # Disable optimizations as some of these tests
 636                     # take a long time to compile.
 637                     set TORTURE_OPTIONS [list { -O0 -g -fno-var-tracking-assignments }]
 638                     go-torture-execute "./$base-out.go"
 639                 }
 640                 file delete $base-out.go
 641             }
 642             file delete $output_file
 643             set runtests $hold_runtests
 644         } elseif { $test_line == "// cmpout" \
 645                    || $test_line == "// (\$G \$D/\$F.go && \$L \$F.\$A && ./\$A.out 2>&1 | cmp - \$D/\$F.out)" } {
 646             # This is an execution test for which we need to check the
 647             # program output.
 648             set hold_runtests $runtests
 649             set runtests "go-test.exp"
 650             set dg-do-what-default "link"
 651             dg-test -keep-output $test "-O" "-w $DEFAULT_GOCFLAGS"
 652             set output_file "./[file rootname [file tail $test]].exe"
 653             set base "[file rootname [file tail $test]]"
 654             if [isnative] {
 655                 verbose -log "$output_file >$base.p 2>&1"
 656                 if { [catch "exec $output_file 2>$base.p" catcherr] != 0 } {
 657                     verbose -log $catcherr
 658                     fail "$name execution"
 659                     untested "$name compare"
 660                 } else {
 661                     pass "$name execution"
 662                     regsub "\\.go$" $test ".out" expect
 663                     filecmp $expect $base.p "$name compare"
 664                     file delete $output_file
 665                 }
 666                 file delete $base.p
 667             } else {
 668                 untested "$name execution"
 669                 untested "$name compare"
 670             }
 671             set runtests $hold_runtests
 672         } elseif { [string match "// \$G \$D/\$F.go && \$L \$F.\$A && ! ./\$A.out || echo BUG: *" \
 673                     $test_line] } {
 674             go-execute-xfail $test
 675         } elseif { $test_line == "// errorcheck" } {
 676             errchk $test ""
 677         } elseif { $test_line == "// errorcheckdir" || $test_line == "// errorcheckdir -n" } {
 678             set hold_runtests $runtests
 679             set runtests "go-test.exp"
 680             set dir "[file rootname $test].dir"
 681             set files [lsort [glob "$dir/*.go"]]
 682             set packages [go-find-packages $test $name $files]
 683             if { [llength $packages] > 0 } {
 684                 set dg-do-what-default "assemble"
 685                 set del [list]
 686                 set last [lindex $packages end]
 687                 set packages [lreplace $packages end end]
 688                 foreach p $packages {
 689                     dg-test -keep-output [lrange $p 1 end] "-O -I." "-w $DEFAULT_GOCFLAGS"
 690                     lappend del "[file rootname [file tail [lindex $p 1]]].o"
 691                 }
 692                 errchk [lindex $last 1] "[lrange $last 2 end]"
 693                 foreach f $del {
 694                     file delete $f
 695                 }
 696             }
 697             set runtests $hold_runtests
 698         } elseif { [string match "// errorcheckoutput*" $test_line] } {
 699             # Run the test to get a .go program to error check.
 700             set go_execute_args ""
 701             set hold_runtests $runtests
 702             set runtests "go-test.exp"
 703             set files [list]
 704             regsub "// errorcheckoutput\(.*\)" $test_line "\\1" args
 705             foreach f $args {
 706                 lappend files "[file dirname $test]/$f"
 707             }
 708             set dg-do-what-default "link"
 709             dg-test -keep-output $test "-O" "$files -w $DEFAULT_GOCFLAGS"
 710             set output_file "./[file rootname [file tail $test]].exe"
 711             set base "[file rootname [file tail $test]]"
 712             if [isnative] {
 713                 if { [catch "exec $output_file >$base-out.go"] != 0 } {
 714                     fail "$name execution"
 715                 } else {
 716                     pass "$name execution"
 717                     errchk "$base-out.go" ""
 718                 }
 719                 file delete $base-out.go
 720             }
 721             file delete $output_file
 722             set runtests $hold_runtests
 723         } elseif { $test_line == "// compiledir" } {
 724             set hold_runtests $runtests
 725             set runtests "go-test.exp"
 726             set dg-do-what-default "assemble"
 727             set dir "[file rootname $test].dir"
 728             set files [lsort [glob "$dir/*.go"]]
 729             set packages [go-find-packages $test $name $files]
 730             if { [llength $packages] > 0 } {
 731                 set del [list]
 732                 foreach p $packages {
 733                     dg-test -keep-output [lindex $p 1] "[lrange $p 2 end] -O -I." "-w $DEFAULT_GOCFLAGS"
 734                     lappend del "[file rootname [file tail [lindex $p 1]]].o"
 735                 }
 736                 foreach f $del {
 737                     file delete $f
 738                 }
 739             }
 740             set runtests $hold_runtests
 741         } elseif { $test_line == "// rundir" } {
 742             set hold_runtests $runtests
 743             set runtests "go-test.exp"
 744             set dir "[file rootname $test].dir"
 745             set files [lsort [glob "$dir/*.go"]]
 746             set packages [go-find-packages $test $name $files]
 747             if { [llength $packages] > 0 } {
 748                 set dg-do-what-default "assemble"
 749                 set del [list]
 750                 set last [lindex $packages end]
 751                 set packages [lreplace $packages end end]
 752                 foreach p $packages {
 753                     dg-test -keep-output [lrange $p 1 end] "-O -I." "-w $DEFAULT_GOCFLAGS"
 754                     lappend del "[file rootname [file tail [lindex $p 1]]].o"
 755                 }
 756                 set dg-do-what-default "link"
 757                 set go_compile_args ""
 758                 append go_compile_args [lrange $last 2 end]
 759                 append go_compile_args $del
 760                 go-torture-execute [lindex $last 1]
 761                 foreach f $del {
 762                     file delete $f
 763                 }
 764             }
 765             set runtests $hold_runtests
 766         } elseif { $test_line == "// rundircmpout" } {
 767             set hold_runtests $runtests
 768             set runtests "go-test.exp"
 769             set dir "[file rootname $test].dir"
 770             set files [lsort [glob "$dir/*.go"]]
 771             set packages [go-find-packages $test $name $files]
 772             if { [llength $packages] > 0 } {
 773                 set dg-do-what-default "assemble"
 774                 set del [list]
 775                 set last [lindex $packages end]
 776                 set packages [lreplace $packages end end]
 777                 foreach p $packages {
 778                     dg-test -keep-output [lrange $p 1 end] "-O -I." "-w $DEFAULT_GOCFLAGS"
 779                     lappend del "[file rootname [file tail [lindex $p 1]]].o"
 780                 }
 781                 set dg-do-what-default "link"
 782                 dg-test -keep-output [lrange $last 1 end] "$del -O -I." "-w $DEFAULT_GOCFLAGS"
 783                 set base "[file rootname [file tail [lindex $last 1]]]"
 784                 set output_file "./$base.exe"
 785                 lappend del $output_file
 786                 if [isnative] {
 787                     verbose -log "$output_file >$base.p 2>&1"
 788                     if { [catch "exec $output_file 2>$base.p" catcherr] != 0 } {
 789                         verbose -log $catcherr
 790                         fail "$name execution"
 791                         untested "$name compare"
 792                     } else {
 793                         pass "$name execution"
 794                         regsub "\\.go$" "$test" ".out" expect
 795                         filecmp $expect $base.p "$name compare"
 796                     }
 797                     lappend del $base.p
 798                 }
 799                 foreach f $del {
 800                     file delete $f
 801                 }
 802             }
 803             set runtests $hold_runtests
 804         } elseif { "$test_line" == ""
 805                    || [string match "// true*" $test_line]
 806                    || [string match "// skip*" $test_line] } {
 807             # Not a real test, just ignore.
 808         } elseif { [string match \
 809                         "// \$G \$D/\$F.dir/bug0.go && errchk \$G \$D/\$F.dir/bug1.go" \
 810                         $test_line] \
 811                        || [string match \
 812                                "// \$G \$D/\$F.dir/io.go && errchk \$G -e \$D/\$F.dir/main.go" \
 813                                $test_line] } {
 814             if { [string match \
 815                       "// \$G \$D/\$F.dir/bug0.go && errchk \$G \$D/\$F.dir/bug1.go" \
 816                       $test_line] } {
 817                 set name1 "bug0.go"
 818                 set name2 "bug1.go"
 819             } elseif { [string match \
 820                             "// \$G \$D/\$F.dir/io.go && errchk \$G -e \$D/\$F.dir/main.go" \
 821                             $test_line] } {
 822                 set name1 "io.go"
 823                 set name2 "main.go"
 824             }
 825             set hold_runtests $runtests
 826             set runtests "go-test.exp"
 827             set dg-do-what-default "assemble"
 828             regsub "\\.go$" $test ".dir/$name1" file1
 829             dg-test -keep-output $file1 "-O" "-w $DEFAULT_GOCFLAGS"
 830             regsub "\\.go$" $test ".dir/$name2" file2
 831             errchk $file2 ""
 832             file delete "[file rootname [file tail $file1]].o"
 833             set runtests $hold_runtests
 834         } elseif { [string match \
 835                         "// \$G \$D/\${F}1.go && errchk \$G \$D/\$F.go" \
 836                         $test_line ] } {
 837             set hold_runtests $runtests
 838             set runtests "go-test.exp"
 839             set dg-do-what-default "assemble"
 840             regsub "\\.go$" $test "1.go" file1
 841             dg-test -keep-output $file1 "-O" "-w $DEFAULT_GOCFLAGS"
 842             errchk $test ""
 843             file delete "[file rootname [file tail $file1]].o"
 844             set runtests $hold_runtests
 845         } elseif { [string match \
 846                         "// \$G \$D/\$F.dir/bug0.go && \$G \$D/\$F.dir/bug1.go && errchk \$G \$D/\$F.dir/bug2.go" \
 847                         $test_line] } {
 848             set hold_runtests $runtests
 849             set runtests "go-test.exp"
 850             set dg-do-what-default "assemble"
 851             regsub "\\.go$" $test ".dir/bug0.go" file1
 852             dg-test -keep-output $file1 "-O" "-w $DEFAULT_GOCFLAGS"
 853             regsub "\\.go$" $test ".dir/bug1.go" file2
 854             dg-test -keep-output $file2 "-O" "-w $DEFAULT_GOCFLAGS"
 855             regsub "\\.go$" $test ".dir/bug2.go" file3
 856             errchk $file3 ""
 857             file delete "[file rootname [file tail $file1]].o"
 858             file delete "[file rootname [file tail $file2]].o"
 859             set runtests $hold_runtests
 860         } elseif { [string match \
 861                         "// \$G \$D/bug160.dir/x.go && \$G \$D/bug160.dir/y.go && \$L y.\$A && ./\$A.out" \
 862                         $test_line] \
 863                        || [string match \
 864                                "// \$G \$D/\$F.dir/p.go && \$G \$D/\$F.dir/main.go && \$L main.\$A && ./\$A.out" \
 865                                $test_line] \
 866                        || $test_line == "// \$G \$D/\$F.dir/p1.go && \$G \$D/\$F.dir/main.go && \$L main.\$A && ./\$A.out" \
 867                        || $test_line == "// \$G \$D/\$F.dir/lib.go && \$G \$D/\$F.go && \$L \$F.\$A && ./\$A.out" \
 868                        || $test_line == "// \$G \$D/method4a.go && \$G \$D/\$F.go && \$L \$F.\$A && ./$\A.out" } {
 869             if { [string match \
 870                         "// \$G \$D/bug160.dir/x.go && \$G \$D/bug160.dir/y.go && \$L y.\$A && ./\$A.out" \
 871                       $test_line] } {
 872                 set name1 "x.go"
 873                 set name2 "y.go"
 874             } elseif { [string match \
 875                            "// \$G \$D/\$F.dir/p.go && \$G \$D/\$F.dir/main.go && \$L main.\$A && ./\$A.out" \
 876                             $test_line] } {
 877                 set name1 "p.go"
 878                 set name2 "main.go"
 879             } elseif { $test_line == "// \$G \$D/\$F.dir/p1.go && \$G \$D/\$F.dir/main.go && \$L main.\$A && ./\$A.out" } {
 880                 set name1 "p1.go"
 881                 set name2 "main.go"
 882             } elseif { $test_line == "// \$G \$D/\$F.dir/lib.go && \$G \$D/\$F.go && \$L \$F.\$A && ./\$A.out" } {
 883                 set name1 "lib.go"
 884                 set name2 ""
 885             } elseif { $test_line == "// \$G \$D/method4a.go && \$G \$D/\$F.go && \$L \$F.\$A && ./$\A.out" } {
 886                 set name1 "method4a.go"
 887                 set name2 ""
 888             }
 889             set hold_runtests $runtests
 890             set runtests "go-test.exp"
 891             set dg-do-what-default "assemble"
 892             regsub "\\.go$" $test ".dir/$name1" file1
 893             if { $name1 == "method4a.go" } {
 894                 set file1 "[file dirname $test]/method4a.go"
 895             }
 896             dg-test -keep-output $file1 "-O" "-w $DEFAULT_GOCFLAGS"
 897             set ofile1 "[file rootname [file tail $file1]].o"
 898             regsub "\\.go$" $test ".dir/$name2" file2
 899             if { $name2 == "" } {
 900                 set file2 $test
 901             }
 902             dg-test -keep-output $file2 "-O" "-w $DEFAULT_GOCFLAGS"
 903             set ofile2 "[file rootname [file tail $file2]].o"
 904             set dg-do-what-default "link"
 905             set output_file "./[file rootname [file tail $test]].exe"
 906             set comp_output [go_target_compile "$ofile1 $ofile2" \
 907                                  $output_file "executable" "$options"]
 908             set comp_output [go-dg-prune $target_triplet $comp_output]
 909             verbose -log $comp_output
 910             set result [go_load "$output_file" "" ""]
 911             set status [lindex $result 0]
 912             $status $name
 913             file delete $ofile1 $ofile2 $output_file
 914             set runtests $hold_runtests
 915         } elseif { $test_line == "// \$G \$D/\$F.dir/one.go && \$G \$D/\$F.dir/two.go && \$G \$D/\$F.go && \$L \$F.\$A && ./\$A.out" } {
 916             set hold_runtests $runtests
 917             set runtests "go-test.exp"
 918             set dg-do-what-default "assemble"
 919             regsub "\\.go$" $test ".dir/one.go" file1
 920             dg-test -keep-output $file1 "-O" "-w $DEFAULT_GOCFLAGS"
 921             set ofile1 "[file rootname [file tail $file1]].o"
 922             regsub "\\.go$" $test ".dir/two.go" file2
 923             dg-test -keep-output $file2 "-O" "-w $DEFAULT_GOCFLAGS"
 924             set ofile2 "[file rootname [file tail $file2]].o"
 925             dg-test -keep-output $test "-O" "-w $DEFAULT_GOCFLAGS"
 926             set ofile3 "[file rootname [file tail $test]].o"
 927             set dg-do-what-default "link"
 928             set output_file "./[file rootname [file tail $test]].exe"
 929             set comp_output [go_target_compile "$ofile1 $ofile2 $ofile3" \
 930                                  $output_file "executable" "$options"]
 931             set comp_output [go-dg-prune $target_triplet $comp_output]
 932             verbose -log $comp_output
 933             set result [go_load "$output_file" "" ""]
 934             set status [lindex $result 0]
 935             $status $name
 936             file delete $ofile1 $ofile2 $ofile3 $output_file
 937             set runtests $hold_runtests
 938         } elseif { [string match \
 939                         "// \$G \$D/embed0.go && \$G \$D/\$F.go && \$L \$F.\$A && ./\$A.out" \
 940                         $test_line ] } {
 941             set hold_runtests $runtests
 942             set runtests "go-test.exp"
 943             set dg-do-what-default "assemble"
 944             regsub "/\[^/\]*$" $test "/embed0.go" file1
 945             dg-test -keep-output $file1 "-O" "-w $DEFAULT_GOCFLAGS"
 946             set ofile1 "[file rootname [file tail $file1]].o"
 947             dg-test -keep-output $test "-O" "-w $DEFAULT_GOCFLAGS"
 948             set ofile2 "[file rootname [file tail $test]].o"
 949             set output_file "./[file rootname [file tail $test]].exe"
 950             set comp_output [go_target_compile "$ofile1 $ofile2" \
 951                                  $output_file "executable" "$options"]
 952             set comp_output [go-dg-prune $target_triplet $comp_output]
 953             if [string match "" $comp_output] {
 954                 set result [go_load "$output_file" "" ""]
 955                 set status [lindex $result 0]
 956                 $status $name
 957             } else {
 958                 verbose -log $comp_output
 959                 fail $name
 960             }
 961             file delete $ofile1 $ofile2 $output_file
 962             set runtests $hold_runtests
 963         } elseif { [string match \
 964                         "// \$G \$D/\$F.dir/lib.go && \$G \$D/\$F.dir/main.go && \$L main.\$A && ./\$A.out || echo BUG*" \
 965                         $test_line ] || \
 966                        [string match \
 967                             "// \$G \$D/\$F.dir/p.go && \$G \$D/\$F.dir/main.go && \$L main.\$A && ./\$A.out || echo BUG*" \
 968                             $test_line ] } {
 969             if { [string match \
 970                       "// \$G \$D/\$F.dir/lib.go && \$G \$D/\$F.dir/main.go && \$L main.\$A && ./\$A.out || echo BUG*" \
 971                       $test_line ] } {
 972                 set name1 "lib.go"
 973                 set name2 "main.go"
 974             } elseif { [string match \
 975                             "// \$G \$D/\$F.dir/p.go && \$G \$D/\$F.dir/main.go && \$L main.\$A && ./\$A.out || echo BUG*" \
 976                             $test_line ] } {
 977                 set name1 "p.go"
 978                 set name2 "main.go"
 979             }
 980             set hold_runtests $runtests
 981             set runtests "go-test.exp"
 982             set dg-do-what-default "assemble"
 983             regsub "\\.go$" $test ".dir/$name1" file1
 984             dg-test -keep-output $file1 "-O" "-w $DEFAULT_GOCFLAGS"
 985             set ofile1 "[file rootname [file tail $file1]].o"
 986             regsub "\\.go$" $test ".dir/$name2" file2
 987             dg-test -keep-output $file2 "-O" "-w $DEFAULT_GOCFLAGS"
 988             set ofile2 "[file rootname [file tail $file2]].o"
 989             set dg-do-what-default "link"
 990             set output_file "./[file rootname [file tail $file2]].exe"
 991             set comp_output [go_target_compile "$ofile1 $ofile2" \
 992                                  $output_file "executable" "$options"]
 993             set comp_output [go-dg-prune $target_triplet $comp_output]
 994             if [string match "" $comp_output] {
 995                 set result [go_load "$output_file" "" ""]
 996                 set status [lindex $result 0]
 997                 $status $name
 998             } else {
 999                 verbose -log $comp_output
1000                 fail $name
1001             }
1002             file delete $ofile1 $ofile2 $output_file
1003             set runtests $hold_runtests
1004         } elseif { $test_line == "// \$G \$D/\$F.dir/bug0.go &&" \
1005                        && $test_line2 == "// \$G \$D/\$F.dir/bug1.go &&" \
1006                        && $test_line3 == "// \$G \$D/\$F.dir/bug2.go &&" \
1007                        && $test_line4 == "// errchk \$G -e \$D/\$F.dir/bug3.go &&" \
1008                        && $test_line5 == "// \$L bug2.\$A &&" \
1009                        && [string match "// ./\$A.out || echo BUG*" $test_line6] } {
1010             set hold_runtests $runtests
1011             set runtests "go-test.exp"
1012             set dg-do-what-default "assemble"
1013             regsub "\\.go$" $test ".dir/bug0.go" file0
1014             dg-test -keep-output $file0 "-O -fgo-prefix=bug0" "-w $DEFAULT_GOCFLAGS"
1015             set ofile0 "[file rootname [file tail $file0]].o"
1016             regsub "\\.go$" $test ".dir/bug1.go" file1
1017             dg-test -keep-output $file1 "-O -fgo-prefix=bug1" "-w $DEFAULT_GOCFLAGS"
1018             set ofile1 "[file rootname [file tail $file1]].o"
1019             regsub "\\.go$" $test ".dir/bug2.go" file2
1020             dg-test -keep-output $file2 "-O" "-w $DEFAULT_GOCFLAGS"
1021             set ofile2 "[file rootname [file tail $file2]].o"
1022             regsub "\\.go$" $test ".dir/bug3.go" file3
1023             errchk $file3 ""
1024             set output_file "./[file rootname [file tail $test]].exe"
1025             set comp_output [go_target_compile "$ofile0 $ofile1 $ofile2" \
1026                                  $output_file "executable" "$options"]
1027             set comp-output [go-dg-prune $target_triplet $comp_output]
1028             if [string match "" $comp_output] {
1029                 set result [go_load "$output_file" "" ""]
1030                 set status [lindex $result 0]
1031                 $status $name
1032             } else {
1033                 verbose -log $comp_output
1034                 fail $name
1035             }
1036             file delete $ofile0 $ofile1 $ofile2 $output_file
1037             set runtests $hold_runtests
1038         } elseif { $test_line == "// \$G \$D/import2.go && \$G \$D/\$F\.go" \
1039                        || $test_line == "// \$G \$D/recursive1.go && \$G \$D/\$F.go" } {
1040             if { $test_line == "// \$G \$D/import2.go && \$G \$D/\$F\.go" } {
1041                 set name1 "import2.go"
1042             } elseif { $test_line == "// \$G \$D/recursive1.go && \$G \$D/\$F.go" } {
1043                 set name1 "recursive1.go"
1044             }
1045             set hold_runtests $runtests
1046             set runtests "go-test.exp"
1047             set dg-do-what-default "assemble"
1048             regsub "/\[^/\]*$" $test "/${name1}" file1
1049             dg-test -keep-output $file1 "-O" "-w $DEFAULT_GOCFLAGS"
1050             set ofile1 "[file rootname [file tail $file1]].o"
1051             dg-test $test "-O" "-w $DEFAULT_GOCFLAGS"
1052             file delete $ofile1
1053             set runtests $hold_runtests
1054         } elseif { $test_line == "// \$G \$D/ddd2.go && \$G \$D/\$F.go && \$L \$F.\$A && ./\$A.out" } {
1055             set hold_runtests $runtests
1056             set runtests "go-test.exp"
1057             set dg-do-what-default "assemble"
1058             regsub "/\[^/\]*$" $test "/ddd2.go" file1
1059             dg-test -keep-output $file1 "-O" "-w $DEFAULT_GOCFLAGS"
1060             set ofile1 "[file rootname [file tail $file1]].o"
1061             dg-test -keep-output $test "-O" "-w $DEFAULT_GOCFLAGS"
1062             set ofile2 "[file rootname [file tail $test]].o"
1063             set output_file "./[file rootname [file tail $test]].exe"
1064             set comp_output [go_target_compile "$ofile1 $ofile2" \
1065                                  $output_file "executable" "$options"]
1066             set comp_output [go-dg-prune $target_triplet $comp_output]
1067             if [string match "" $comp_output] {
1068                 set result [go_load "$output_file" "" ""]
1069                 set status [lindex $result 0]
1070                 $status $name
1071             } else {
1072                 verbose -log $comp_output
1073                 fail $name
1074             }
1075             file delete $ofile1 $ofile2 $output_file
1076             set runtests $hold_runtests
1077         } elseif { $test_line == "// run cmplxdivide1.go" } {
1078             regsub "/\[^/\]*$" $test "/cmplxdivide1.go" test2
1079             set output_file "./[file rootname [file tail $test]].o"
1080             set comp_output [go_target_compile "$test $test2" \
1081                                  $output_file "executable" "$options"]
1082             set comp_output [go-dg-prune $target_triplet $comp_output]
1083             if [string match "" $comp_output] {
1084                 set result [go_load "$output_file" "" ""]
1085                 set status [lindex $result 0]
1086                 $status $name
1087             } else {
1088                 verbose -log $comp_output
1089                 fail $name
1090             }
1091             file delete $output_file
1092         } elseif { $test_line == "// \$G \$D/\$F.go && \$L \$F.\$A &&" \
1093                        && $test_line2 == "// ./\$A.out -pass 0 >tmp.go && \$G tmp.go && \$L -o \$A.out1 tmp.\$A && ./\$A.out1 &&" \
1094                        && $test_line3 == "// ./\$A.out -pass 1 >tmp.go && errchk \$G -e tmp.go &&" \
1095                        && $test_line4 == "// ./\$A.out -pass 2 >tmp.go && errchk \$G -e tmp.go" } {
1096             set go_execute_args ""
1097             set hold_runtests $runtests
1098             set runtests "go-test.exp"
1099             set dg-do-what-default "link"
1100             dg-test -keep-output $test "-O" "-w $DEFAULT_GOCFLAGS"
1101             set output_file "./[file rootname [file tail $test]].exe"
1102             if [isnative] {
1103                 if { [catch "exec $output_file -pass 0 >tmp.go"] != 0 } {
1104                     fail "$name execution 0"
1105                 } else {
1106                     pass "$name execution 0"
1107                     file delete tmp.x
1108                     # Disable optimizations as this test takes a long time
1109                     # to compile.
1110                     set TORTURE_OPTIONS [list { -O0 -g -fno-var-tracking-assignments }]
1111                     go-torture-execute "./tmp.go"
1112                 }
1113                 if { [catch "exec $output_file -pass 1 >tmp.go"] != 0 } {
1114                     fail "$name execution 1"
1115                 } else {
1116                     pass "$name execution 1"
1117                     errchk tmp.go ""
1118                 }
1119                 if { [catch "exec $output_file -pass 2 >tmp.go"] != 0 } {
1120                     fail "$name execution 2"
1121                 } else {
1122                     pass "$name execution 2"
1123                     errchk tmp.go ""
1124                 }
1125                 file delete tmp.go
1126             }
1127             file delete $output_file
1128             set runtests $hold_runtests
1129         } elseif { $test_line == "// \$G \$D/\$F.go && \$L \$F.\$A && ./\$A.out >tmp.go &&" \
1130                         && $test_line2 == "// errchk \$G -e tmp.go" } {
1131             set go_execute_args ""
1132             set hold_runtests $runtests
1133             set runtests "go-test.exp"
1134             set dg-do-what-default "link"
1135             dg-test -keep-output $test "-O" "-w $DEFAULT_GOCFLAGS"
1136             set output_file "./[file rootname [file tail $test]].exe"
1137             if [isnative] {
1138                 if { [catch "exec $output_file >tmp.go"] != 0 } {
1139                     fail "$name execution"
1140                 } else {
1141                     pass "$name execution"
1142                     file delete tmp.x
1143                     errchk tmp.go ""
1144                 }
1145             }
1146             file delete $output_file
1147             set runtests $hold_runtests
1148         } elseif { $test_line == "// errchk \$G -e \$D/\$F.dir/\[ab\].go" } {
1149             regsub "\\.go$" $test ".dir/a.go" file1
1150             regsub "\\.go$" $test ".dir/b.go" file2
1151             errchk "$file1" "$file2"
1152         } elseif { $test_line == "// \$G -N -o slow.\$A \$D/bug369.dir/pkg.go &&" \
1153                        && $test_line2 == "// \$G -o fast.\$A \$D/bug369.dir/pkg.go &&" \
1154                        && $test_line3 == "// run" } {
1155             set hold_runtests $runtests
1156             set runtests "go-test.exp"
1157             set dg-do-what-default "assemble"
1158             regsub "\\.go$" $test ".dir/pkg.go" file1
1159             dg-test -keep-output $file1 "" "-fgo-prefix=slow -w $DEFAULT_GOCFLAGS"
1160             set ofile1 "[file rootname [file tail $file1]].o"
1161             file rename -force $ofile1 slow.o
1162             dg-test -keep-output $file1 "-O2" "-fgo-prefix=fast -w $DEFAULT_GOCFLAGS"
1163             file rename -force $ofile1 fast.o
1164             set ofile2 "[file rootname [file tail $test]].o"
1165             dg-test -keep-output $test "-O" "-w $DEFAULT_GOCFLAGS"
1166             set output_file "./[file rootname [file tail $test]].exe"
1167             set comp_output [go_target_compile "$ofile2 slow.o fast.o" \
1168                                  $output_file "executable" "$options"]
1169             set comp_output [go-dg-prune $target_triplet $comp_output]
1170             if [string match "" $comp_output] {
1171                 set result [go_load "$output_file" "" ""]
1172                 set status [lindex $result 0]
1173                 $status $name
1174             } else {
1175                 verbose -log $comp_output
1176                 fail $name
1177             }
1178             file delete slow.o fast.o $ofile2 $output_file
1179             set runtests $hold_runtests
1180         } elseif { [string match \
1181                         "// \$G \$D/\$F.dir/pkg.go && \$G \$D/\$F.go || echo *" \
1182                         $test_line ] } {
1183             set hold_runtests $runtests
1184             set runtests "go-test.exp"
1185             set dg-do-what-default "assemble"
1186             regsub "\\.go$" $test ".dir/pkg.go" file1
1187             dg-test -keep-output $file1 "-O" "-w $DEFAULT_GOCFLAGS"
1188             dg-test $test "-O" "-w $DEFAULT_GOCFLAGS"
1189             file delete "[file rootname [file tail $file1]].o"
1190             set runtests $hold_runtests
1191         } elseif { [string match "// \$G \$D/\$F.dir/one.go && \$G \$D/\$F.dir/two.go || echo BUG*" \
1192                         $test_line ] } {
1193             set hold_runtests $runtests
1194             set runtests "go-test.exp"
1195             set dg-do-what-default "assemble"
1196             regsub "\\.go$" $test ".dir/one.go" file1
1197             dg-test -keep-output $file1 "-O" "-w $DEFAULT_GOCFLAGS"
1198             set ofile1 "[file rootname [file tail $file1]].o"
1199             regsub "\\.go$" $test ".dir/two.go" file2
1200             dg-test $file2 "-O" "-w $DEFAULT_GOCFLAGS"
1201             file delete $ofile1
1202             set runtests $hold_runtests
1203         } elseif { $test_line == "// \$G \$D/bug302.dir/p.go && pack grc pp.a p.\$A && \$G \$D/bug302.dir/main.go" \
1204                    || $test_line == "// \$G \$D/empty.go && errchk \$G \$D/\$F.go" } {
1205             # These tests import the same package under two different
1206             # names, which gccgo does not support.
1207         } elseif { $test_line == "// \$G -S \$D/\$F.go | egrep initdone >/dev/null && echo BUG sinit || true" } {
1208             # This tests whether initializers are written out
1209             # statically.  gccgo does not provide a way to test that,
1210             # as an initializer will be generated for any code which
1211             # has global variables which need to be registered as GC
1212             # roots.
1213         } elseif { $test_line == "// errorcheck -0 -m"
1214                    || $test_line == "// errorcheck -0 -m -l" } {
1215             # This tests debug output of the gc compiler, which is
1216             # meaningless for gccgo.
1217         } elseif { $test_line == "// \[ \$A == 6 \] || errchk \$G -e \$D/\$F.go" \
1218                        || $test_line == "// \[ \$A != 6 \]  || errchk \$G -e \$D/\$F.go" } {
1219             # This tests specific handling of the gc compiler on types
1220             # that are too large.  It is target specific in a way I
1221             # haven't bothered to check for here.
1222         } elseif { $test_line == "// \$G \$D/\$F.go && \$L -X main.tbd hello \$F.\$A && ./\$A.out" } {
1223             # This tests the gc ld -X option, which gccgo does not
1224             # support.
1225         } elseif { $test_line == "// \$G \$D/pkg.go && pack grc pkg.a pkg.\$A 2> /dev/null && rm pkg.\$A && errchk \$G -I. -u \$D/main.go"
1226                    || $test_line == "// \$G \$D/pkg.go && pack grcS pkg.a pkg.\$A 2> /dev/null && rm pkg.\$A && \$G -I. -u \$D/main.go" } {
1227             # This tests the gc -u option, which gccgo does not
1228             # support.
1229         } elseif { $test_line == "// errorcheck -0 -N -d=nil" \
1230                        || $test_line == "// errorcheck -0 -d=nil" } {
1231             # This tests gc nil pointer checks using -d=nil, which
1232             # gccgo does not support.
1233         } else {
1234             clone_output "$name: unrecognized test line: $test_line"
1235             unsupported $name
1236         }
1237
1238         set go_compile_args ""
1239         set go_execute_args ""
1240         set TORTURE_OPTIONS [list { -O2 -g }]
1241         gcc_parallel_test_enable 1
1242     }
1243
1244     set dg-do-what-default ${saved-dg-do-what-default}
1245     set TORTURE_OPTIONS $saved_torture_options
1246 }
1247
1248 go-gc-tests