gnu/dist/gcc4/gcc/testsuite/lib/c-torture.exp

   1 # Copyright (C) 1992-1998, 1999, 2000 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 2 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 this program; if not, write to the Free Software
  15 # Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  16
  17 # This file was written by Rob Savoye. (rob@cygnus.com)
  18
  19 load_lib file-format.exp
  20
  21 # The default option list can be overridden by
  22 # TORTURE_OPTIONS="{ { list1 } ... { listN } }"
  23
  24 if ![info exists TORTURE_OPTIONS] {
  25     # It is theoretically beneficial to group all of the O2/O3 options together,
  26     # as in many cases the compiler will generate identical executables for
  27     # all of them--and the c-torture testsuite will skip testing identical
  28     # executables multiple times.
  29     # Also note that -finline-functions is explicitly included in one of the
  30     # items below, even though -O3 is also specified, because some ports may
  31     # choose to disable inlining functions by default, even when optimizing.
  32     set TORTURE_OPTIONS [list \
  33         { -O0 } \
  34         { -O1 } \
  35         { -O2 } \
  36         { -O3 -fomit-frame-pointer } \
  37         { -O3 -fomit-frame-pointer -funroll-loops } \
  38         { -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions } \
  39         { -O3 -g } \
  40         { -Os } ]
  41 }
  42
  43
  44 # Split TORTURE_OPTIONS into two choices: one for testcases with loops and
  45 # one for testcases without loops.
  46
  47 set torture_with_loops $TORTURE_OPTIONS
  48 set torture_without_loops ""
  49 foreach option $TORTURE_OPTIONS {
  50     if ![string match "*loop*" $option] {
  51         lappend torture_without_loops $option
  52     }
  53 }
  54
  55 #
  56 # c-torture-compile -- runs the Tege C-torture test
  57 #
  58 # SRC is the full pathname of the testcase.
  59 # OPTION is the specific compiler flag we're testing (eg: -O2).
  60 #
  61 proc c-torture-compile { src option } {
  62     global output
  63     global srcdir tmpdir
  64     global host_triplet
  65
  66     set output "$tmpdir/[file tail [file rootname $src]].o"
  67
  68     regsub "(?q)$srcdir/" $src "" testcase
  69     # If we couldn't rip $srcdir out of `src' then just do the best we can.
  70     # The point is to reduce the unnecessary noise in the logs.  Don't strip
  71     # out too much because different testcases with the same name can confuse
  72     # `test-tool'.
  73     if [string match "/*" $testcase] {
  74         set testcase "[file tail [file dirname $src]]/[file tail $src]"
  75     }
  76
  77     verbose "Testing $testcase, $option" 1
  78
  79     # Run the compiler and analyze the results.
  80     set options ""
  81     lappend options "additional_flags=-w $option"
  82
  83     set comp_output [gcc_target_compile "$src" "$output" object $options]
  84     gcc_check_compile $testcase $option $output $comp_output
  85     remote_file build delete $output
  86 }
  87
  88 #
  89 # c-torture-execute -- utility to compile and execute a testcase
  90 #
  91 # SOURCES is a list of full pathnames to the test source files.
  92 # The first filename in this list forms the "testcase".
  93 #
  94 # If the testcase has an associated .x file, we source that to run the
  95 # test instead.  We use .x so that we don't lengthen the existing filename
  96 # to more than 14 chars.
  97 #
  98 proc c-torture-execute { sources args } {
  99     global tmpdir tool srcdir output compiler_conditional_xfail_data
 100
 101     # Use the first source filename given as the filename under test.
 102     set src [lindex $sources 0]
 103
 104     if { [llength $args] > 0 } {
 105         set additional_flags [lindex $args 0]
 106     } else {
 107         set additional_flags ""
 108     }
 109     # Check for alternate driver.
 110     if [file exists [file rootname $src].x] {
 111         verbose "Using alternate driver [file rootname [file tail $src]].x" 2
 112         set done_p 0
 113         catch "set done_p \[source [file rootname $src].x\]"
 114         if { $done_p } {
 115             return
 116         }
 117     }
 118
 119     # Look for a loop within the source code - if we don't find one,
 120     # don't pass -funroll[-all]-loops.
 121     global torture_with_loops torture_without_loops
 122     if [expr [search_for $src "for*("]+[search_for $src "while*("]] then {
 123         set option_list $torture_with_loops
 124     } else {
 125         set option_list $torture_without_loops
 126     }
 127
 128     set executable $tmpdir/[file tail [file rootname $src].x]
 129
 130     regsub "(?q)$srcdir/" $src "" testcase
 131     # If we couldn't rip $srcdir out of `src' then just do the best we can.
 132     # The point is to reduce the unnecessary noise in the logs.  Don't strip
 133     # out too much because different testcases with the same name can confuse
 134     # `test-tool'.
 135     if [string match "/*" $testcase] {
 136         set testcase "[file tail [file dirname $src]]/[file tail $src]"
 137     }
 138
 139     set count 0
 140     set oldstatus "foo"
 141     foreach option $option_list {
 142         if { $count > 0 } {
 143             set oldexec $execname
 144         }
 145         set execname "${executable}${count}"
 146         incr count
 147
 148         # torture_{compile,execute}_xfail are set by the .x script
 149         # (if present)
 150         if [info exists torture_compile_xfail] {
 151             setup_xfail $torture_compile_xfail
 152         }
 153
 154         # torture_execute_before_{compile,execute} can be set by the .x script
 155         # (if present)
 156         if [info exists torture_eval_before_compile] {
 157             set ignore_me [eval $torture_eval_before_compile]
 158         }
 159
 160         remote_file build delete $execname
 161         verbose "Testing $testcase, $option" 1
 162
 163         set options ""
 164         lappend options "additional_flags=-w $option"
 165         if { $additional_flags != "" } {
 166             lappend options "additional_flags=$additional_flags"
 167         }
 168         set comp_output [gcc_target_compile "$sources" "${execname}" executable $options]
 169
 170         if ![gcc_check_compile "$testcase compilation" $option $execname $comp_output] {
 171             unresolved "$testcase execution, $option"
 172             remote_file build delete $execname
 173             continue
 174         }
 175
 176         # See if this source file uses "long long" types, if it does, and
 177         # no_long_long is set, skip execution of the test.
 178         if [target_info exists no_long_long] then {
 179             if [expr [search_for $src "long long"]] then {
 180                 unsupported "$testcase execution, $option"
 181                 continue
 182             }
 183         }
 184
 185         if [info exists torture_execute_xfail] {
 186             setup_xfail $torture_execute_xfail
 187         }
 188
 189         if [info exists torture_eval_before_execute] {
 190             set ignore_me [eval $torture_eval_before_execute]
 191         }
 192
 193
 194         # Sometimes we end up creating identical executables for two
 195         # consecutive sets of different of compiler options.
 196         #
 197         # In such cases we know the result of this test will be identical
 198         # to the result of the last test.
 199         #
 200         # So in cases where the time to load and run/simulate the test
 201         # is relatively high, compare the two binaries and avoid rerunning
 202         # tests if the executables are identical.
 203         #
 204         # Do not do this for native testing since the cost to load/execute
 205         # the test is fairly small and the comparison step actually slows
 206         # the entire process down because it usually does not "hit".
 207         set skip 0
 208         if { ![isnative] && [info exists oldexec] } {
 209             if { [remote_file build cmp $oldexec $execname] == 0 } {
 210                 set skip 1
 211             }
 212         }
 213         if { $skip == 0 } {
 214             set result [gcc_load "$execname" "" ""]
 215             set status [lindex $result 0]
 216             set output [lindex $result 1]
 217         }
 218         if { $oldstatus == "pass" } {
 219             remote_file build delete $oldexec
 220         }
 221         $status "$testcase execution, $option"
 222         set oldstatus $status
 223     }
 224     if [info exists status] {
 225         if { $status == "pass" } {
 226             remote_file build delete $execname
 227         }
 228     }
 229 }
 230
 231 #
 232 # search_for -- looks for a string match in a file
 233 #
 234 proc search_for { file pattern } {
 235     set fd [open $file r]
 236     while { [gets $fd cur_line]>=0 } {
 237         if [string match "*$pattern*" $cur_line] then {
 238             close $fd
 239             return 1
 240         }
 241     }
 242     close $fd
 243     return 0
 244 }
 245
 246 #
 247 # c-torture -- the c-torture testcase source file processor
 248 #
 249 # This runs compilation only tests (no execute tests).
 250 # SRC is the full pathname of the testcase, or just a file name in which case
 251 # we prepend $srcdir/$subdir.
 252 #
 253 # If the testcase has an associated .x file, we source that to run the
 254 # test instead.  We use .x so that we don't lengthen the existing filename
 255 # to more than 14 chars.
 256 #
 257 proc c-torture { args } {
 258     global srcdir subdir compiler_conditional_xfail_data
 259
 260     set src [lindex $args 0]
 261     if { [llength $args] > 1 } {
 262         set options [lindex $args 1]
 263     } else {
 264         set options ""
 265     }
 266
 267     # Prepend $srdir/$subdir if missing.
 268     if ![string match "*/*" $src] {
 269         set src "$srcdir/$subdir/$src"
 270     }
 271
 272     # Check for alternate driver.
 273     if [file exists [file rootname $src].x] {
 274         verbose "Using alternate driver [file rootname [file tail $src]].x" 2
 275         set done_p 0
 276         catch "set done_p \[source [file rootname $src].x\]"
 277         if { $done_p } {
 278             return
 279         }
 280     }
 281
 282     # Look for a loop within the source code - if we don't find one,
 283     # don't pass -funroll[-all]-loops.
 284     global torture_with_loops torture_without_loops
 285     if [expr [search_for $src "for*("]+[search_for $src "while*("]] then {
 286         set option_list $torture_with_loops
 287     } else {
 288         set option_list $torture_without_loops
 289     }
 290
 291     # loop through all the options
 292     foreach option $option_list {
 293         # torture_compile_xfail is set by the .x script (if present)
 294         if [info exists torture_compile_xfail] {
 295             setup_xfail $torture_compile_xfail
 296         }
 297
 298         # torture_execute_before_compile is set by the .x script (if present)
 299         if [info exists torture_eval_before_compile] {
 300             set ignore_me [eval $torture_eval_before_compile]
 301         }
 302
 303         c-torture-compile $src "$option $options"
 304     }
 305 }