gcc/testsuite/lib/objc-torture.exp

   1 # Copyright (C) 1992-2020 Free Software Foundation, Inc.
   2
   3 # This program is free software; you can redistribute it and/or modify
   4 # it under the terms of the GNU General Public License as published by
   5 # the Free Software Foundation; either version 3 of the License, or
   6 # (at your option) any later version.
   7 #
   8 # This program is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 # GNU General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU General Public License
  14 # along with GCC; see the file COPYING3.  If not see
  15 # <http://www.gnu.org/licenses/>.
  16
  17 # This file was written by Rob Savoye. (rob@cygnus.com)
  18
  19 load_lib file-format.exp
  20 load_lib target-supports.exp
  21
  22 # Make sure that the runtime list is re-evaluated for each multilib.
  23 proc objc-set-runtime-options { dowhat args } {
  24     global OBJC_RUNTIME_OPTIONS
  25     set rtlist [list "-fgnu-runtime" ]
  26     # At present (4.6), the only NeXT runtime target is Darwin.
  27     # The previously used approach of testing trivial compiles is not reliable
  28     # for determining the absence of the NeXT runtime, since a non-Darwin
  29     # installation can have the objc headers present in the same locations
  30     # that Darwin uses.  If NeXT is ported to another target, then it should
  31     # be listed here.
  32     if [istarget *-*-darwin*] {
  33       lappend rtlist "-fnext-runtime"
  34     }
  35     if [info exists OBJC_RUNTIME_OPTIONS] {
  36       foreach other $OBJC_RUNTIME_OPTIONS {
  37         # Don't do tests twice...
  38         if { ( $other == "-fnext-runtime"  || $other == "-fgnu-runtime" ) } {
  39           continue
  40         }
  41         lappend rtlist $other
  42       }
  43     }
  44
  45     set OBJC_RUNTIME_OPTIONS ""
  46
  47     foreach type $rtlist {
  48         global srcdir subdir target_triplet tmpdir
  49
  50         set options "additional_flags=$type"
  51         if [info exists args] {
  52             lappend options $args
  53         }
  54         verbose "options $options"
  55         if [info exists dowhat] {
  56           switch $dowhat {
  57             "compile" {
  58               # We should check that the generated asm is sensible, so do
  59               # the equivalent of -c.
  60               set compile_type "object"
  61               set output_file "trivial.o"
  62               set comp_output [objc_target_compile \
  63                 "$srcdir/$subdir/trivial.m" "$output_file" "$compile_type" $options]
  64
  65               remote_file build delete $output_file
  66               # If we get any error, then we failed.
  67               if ![string match "" $comp_output] then {
  68                 continue;
  69               }
  70             }
  71             "execute" {
  72               set test_obj "trivial.exe"
  73               set comp_output [objc_target_compile \
  74                 "$srcdir/$subdir/trivial.m" $test_obj "executable" $options]
  75
  76               # If we get any error, then we failed.
  77               if ![string match "" $comp_output] then {
  78                 remote_file build delete $test_obj
  79                 continue;
  80               }
  81               set result [objc_load "$tmpdir/$test_obj" "" ""]
  82               set status [lindex $result 0]
  83               set output [lindex $result 1]
  84               remote_file build delete $test_obj
  85               if { $status != "pass" } {
  86                 verbose -log "trivial execute failed with $status $output"
  87                 continue;
  88               }
  89             }
  90             default {
  91               perror "$dowhat: not a valid objc-torture action"
  92               return ""
  93             }
  94           }
  95         } else {
  96           set test_obj "trivial.exe"
  97           set comp_output [objc_target_compile \
  98           "$srcdir/$subdir/trivial.m" $test_obj executable $options]
  99
 100           # If we get any error, then we failed.
 101           remote_file build delete $test_obj
 102           if ![string match "" $comp_output] then {
 103               continue;
 104           }
 105         }
 106         lappend OBJC_RUNTIME_OPTIONS $type
 107     }
 108
 109     verbose -log "Using the following runtimes: $OBJC_RUNTIME_OPTIONS"
 110 }
 111
 112 # The default option list can be overridden by
 113 # TORTURE_OPTIONS="{ { list1 } ... { listN } }"
 114
 115 if [info exists TORTURE_OPTIONS] {
 116     set OBJC_TORTURE_OPTIONS $TORTURE_OPTIONS
 117 } else {
 118     # It is theoretically beneficial to group all of the O2/O3 options together,
 119     # as in many cases the compiler will generate identical executables for
 120     # all of them--and the objc-torture testsuite will skip testing identical
 121     # executables multiple times.
 122     # Also note that -finline-functions is explicitly included in one of the
 123     # items below, even though -O3 is also specified, because some ports may
 124     # choose to disable inlining functions by default, even when optimizing.
 125     set OBJC_TORTURE_OPTIONS [list \
 126         " -O0 " \
 127         " -O1 " \
 128         " -O2 " \
 129         " -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions " \
 130         " -O3 -g " \
 131         " -Os " ]
 132 }
 133
 134 if [info exists ADDITIONAL_TORTURE_OPTIONS] {
 135     set OBJC_TORTURE_OPTIONS \
 136         [concat $OBJC_TORTURE_OPTIONS $ADDITIONAL_TORTURE_OPTIONS]
 137 }
 138
 139 #
 140 # objc-torture-compile -- runs the Tege OBJC-torture test
 141 #
 142 # SRC is the full pathname of the testcase.
 143 # OPTION is the specific compiler flag we're testing (eg: -O2).
 144 #
 145 proc objc-torture-compile { src option } {
 146     global output
 147     global srcdir tmpdir
 148     global host_triplet
 149
 150     set output "$tmpdir/[file tail [file rootname $src]].o"
 151
 152     regsub "(?q)$srcdir/" $src "" testcase
 153     # If we couldn't rip $srcdir out of `src' then just do the best we can.
 154     # The point is to reduce the unnecessary noise in the logs.  Don't strip
 155     # out too much because different testcases with the same name can confuse
 156     # `test-tool'.
 157     if [string match "/*" $testcase] {
 158         set testcase "[file tail [file dirname $src]]/[file tail $src]"
 159     }
 160
 161     verbose "Testing $testcase, $option" 1
 162
 163     # Run the compiler and analyze the results.
 164     set options ""
 165     lappend options "additional_flags=-w $option"
 166
 167     set comp_output [objc_target_compile "$src" "$output" object $options]
 168     objc_check_compile $testcase $option $output $comp_output
 169     remote_file build delete $output
 170 }
 171
 172 #
 173 # objc-torture-execute -- utility to compile and execute a testcase
 174 #
 175 # SRC is the full pathname of the testcase.
 176 #
 177 # If the testcase has an associated .x file, we source that to run the
 178 # test instead.  We use .x so that we don't lengthen the existing filename
 179 # to more than 14 chars.
 180 #
 181 proc objc-torture-execute { src args } {
 182     global tmpdir tool srcdir output compiler_conditional_xfail_data
 183
 184     if { [llength $args] > 0 } {
 185         set additional_flags [lindex $args 0]
 186     } else {
 187         set additional_flags ""
 188     }
 189     # Check for alternate driver.
 190     if [file exists [file rootname $src].x] {
 191         verbose "Using alternate driver [file rootname [file tail $src]].x" 2
 192         set done_p 0
 193         catch "set done_p \[source [file rootname $src].x\]"
 194         if { $done_p } {
 195             return
 196         }
 197     }
 198
 199     # Look for a loop within the source code - if we don't find one,
 200     # don't pass -funroll[-all]-loops.
 201     global torture_with_loops torture_without_loops
 202     if [expr [search_for $src "for*("]+[search_for $src "while*("]] then {
 203         set option_list $torture_with_loops
 204     } else {
 205         set option_list $torture_without_loops
 206     }
 207
 208     set executable $tmpdir/[file tail [file rootname $src].x]
 209
 210     regsub "(?q)$srcdir/" $src "" testcase
 211     # If we couldn't rip $srcdir out of `src' then just do the best we can.
 212     # The point is to reduce the unnecessary noise in the logs.  Don't strip
 213     # out too much because different testcases with the same name can confuse
 214     # `test-tool'.
 215     if [string match "/*" $testcase] {
 216         set testcase "[file tail [file dirname $src]]/[file tail $src]"
 217     }
 218
 219     set count 0
 220     set oldstatus "foo"
 221     foreach option $option_list {
 222         if { $count > 0 } {
 223             if [info exists oldexec] {
 224                 remote_file build delete $oldexec
 225             }
 226             set oldexec $execname
 227         }
 228         set execname "${executable}${count}"
 229         incr count
 230
 231         # torture_{compile,execute}_xfail are set by the .x script
 232         # (if present)
 233         if [info exists torture_compile_xfail] {
 234             setup_xfail $torture_compile_xfail
 235         }
 236
 237         # torture_execute_before_{compile,execute} can be set by the .x script
 238         # (if present)
 239         if [info exists torture_eval_before_compile] {
 240           set ignore_me [eval $torture_eval_before_compile]
 241         }
 242
 243         remote_file build delete $execname
 244         verbose "Testing $testcase, $option" 1
 245
 246         set options ""
 247         lappend options "additional_flags=-w $option"
 248         if { $additional_flags != "" } {
 249             lappend options "additional_flags=$additional_flags"
 250         }
 251         set comp_output [objc_target_compile "$src" "${execname}" executable $options]
 252
 253         if ![objc_check_compile "$testcase compilation" $option $execname $comp_output] {
 254             unresolved "$testcase execution, $option"
 255             remote_file build delete $execname
 256             continue
 257         }
 258
 259         # See if this source file uses "long long" types, if it does, and
 260         # no_long_long is set, skip execution of the test.
 261         if [target_info exists no_long_long] then {
 262             if [expr [search_for $src "long long"]] then {
 263                 unsupported "$testcase execution, $option"
 264                 remote_file build delete $execname
 265                 continue
 266             }
 267         }
 268
 269         if [info exists torture_execute_xfail] {
 270             setup_xfail $torture_execute_xfail
 271         }
 272
 273         if [info exists torture_eval_before_execute] {
 274             set ignore_me [eval $torture_eval_before_execute]
 275         }
 276
 277
 278         # Sometimes we end up creating identical executables for two
 279         # consecutive sets of different of compiler options.
 280         #
 281         # In such cases we know the result of this test will be identical
 282         # to the result of the last test.
 283         #
 284         # So in cases where the time to load and run/simulate the test
 285         # is relatively high, compare the two binaries and avoid rerunning
 286         # tests if the executables are identical.
 287         #
 288         # Do not do this for native testing since the cost to load/execute
 289         # the test is fairly small and the comparison step actually slows
 290         # the entire process down because it usually does not "hit".
 291         set skip 0
 292         if { ![isnative] && [info exists oldexec] } {
 293             if { [remote_file build cmp $oldexec $execname] == 0 } {
 294                 set skip 1
 295                 set status $oldstatus
 296             }
 297         }
 298         if { $skip == 0 } {
 299             set result [objc_load "$execname" "" ""]
 300             set status [lindex $result 0]
 301             set output [lindex $result 1]
 302         }
 303         $status "$testcase execution, $option"
 304         set oldstatus $status
 305     # for each option
 306     }
 307     # tidy up
 308     if [info exists execname] {
 309         remote_file build delete $execname
 310     }
 311     if [info exists oldexec] {
 312         remote_file build delete $oldexec
 313     }
 314 }
 315
 316 #
 317 # search_for -- looks for a string match in a file
 318 #
 319 proc search_for { file pattern } {
 320     set fd [open $file r]
 321     while { [gets $fd cur_line]>=0 } {
 322         if [string match "*$pattern*" $cur_line] then {
 323             close $fd
 324             return 1
 325         }
 326     }
 327     close $fd
 328     return 0
 329 }
 330
 331 #
 332 # objc-torture -- the objc-torture testcase source file processor
 333 #
 334 # This runs compilation only tests (no execute tests).
 335 # SRC is the full pathname of the testcase, or just a file name in which case
 336 # we prepend $srcdir/$subdir.
 337 #
 338 # If the testcase has an associated .x file, we source that to run the
 339 # test instead.  We use .x so that we don't lengthen the existing filename
 340 # to more than 14 chars.
 341 #
 342 proc objc-torture { args } {
 343     global srcdir subdir compiler_conditional_xfail_data
 344
 345     set src [lindex $args 0]
 346     if { [llength $args] > 1 } {
 347         set options [lindex $args 1]
 348     } else {
 349         set options ""
 350     }
 351
 352     # Prepend $srdir/$subdir if missing.
 353     if ![string match "*/*" $src] {
 354         set src "$srcdir/$subdir/$src"
 355     }
 356
 357     # Check for alternate driver.
 358     if [file exists [file rootname $src].x] {
 359         verbose "Using alternate driver [file rootname [file tail $src]].x" 2
 360         set done_p 0
 361         catch "set done_p \[source [file rootname $src].x\]"
 362         if { $done_p } {
 363             return
 364         }
 365     }
 366
 367     # Look for a loop within the source code - if we don't find one,
 368     # don't pass -funroll[-all]-loops.
 369     global torture_with_loops torture_without_loops
 370     if [expr [search_for $src "for*("]+[search_for $src "while*("]] then {
 371             set option_list $torture_with_loops
 372     } else {
 373             set option_list $torture_without_loops
 374     }
 375
 376     # loop through all the options
 377     foreach option $option_list {
 378         # torture_compile_xfail is set by the .x script (if present)
 379         if [info exists torture_compile_xfail] {
 380             setup_xfail $torture_compile_xfail
 381         }
 382
 383         # torture_execute_before_compile is set by the .x script (if present)
 384         if [info exists torture_eval_before_compile] {
 385             set ignore_me [eval $torture_eval_before_compile]
 386         }
 387
 388         objc-torture-compile $src "$option $options"
 389     }
 390 }