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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  16
  17 # Please email any bugs, comments, and/or additions to this file to:
  18 # bug-dejagnu@gnu.org.
  19
  20 # This file was written by Rob Savoye. (rob@cygnus.com)
  21
  22 load_lib file-format.exp
  23
  24 # The default option list can be overridden by
  25 # TORTURE_OPTIONS="{ { list1 } ... { listN } }"
  26
  27 if ![info exists TORTURE_OPTIONS] {
  28     # It is theoretically beneficial to group all of the O2/O3 options together,
  29     # as in many cases the compiler will generate identical executables for
  30     # all of them--and the c-torture testsuite will skip testing identical
  31     # executables multiple times.
  32     # Also note that -finline-functions is explicitly included in one of the
  33     # items below, even though -O3 is also specified, because some ports may
  34     # choose to disable inlining functions by default, even when optimizing.
  35     set TORTURE_OPTIONS [list \
  36         { -O0 } \
  37         { -O1 } \
  38         { -O2 } \
  39         { -O3 -fomit-frame-pointer } \
  40         { -O3 -fomit-frame-pointer -funroll-loops } \
  41         { -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions } \
  42         { -O3 -g } \
  43         { -Os } ]
  44 }
  45
  46
  47 # Split TORTURE_OPTIONS into two choices: one for testcases with loops and
  48 # one for testcases without loops.
  49
  50 set torture_with_loops $TORTURE_OPTIONS
  51 set torture_without_loops ""
  52 foreach option $TORTURE_OPTIONS {
  53     if ![string match "*loop*" $option] {
  54         lappend torture_without_loops $option
  55     }
  56 }
  57
  58 #
  59 # c-torture-compile -- runs the Tege C-torture test
  60 #
  61 # SRC is the full pathname of the testcase.
  62 # OPTION is the specific compiler flag we're testing (eg: -O2).
  63 #
  64 proc c-torture-compile { src option } {
  65     global output
  66     global srcdir tmpdir
  67     global host_triplet
  68
  69     set output "$tmpdir/[file tail [file rootname $src]].o"
  70
  71     regsub "^$srcdir/?" $src "" testcase
  72     # If we couldn't rip $srcdir out of `src' then just do the best we can.
  73     # The point is to reduce the unnecessary noise in the logs.  Don't strip
  74     # out too much because different testcases with the same name can confuse
  75     # `test-tool'.
  76     if [string match "/*" $testcase] {
  77         set testcase "[file tail [file dirname $src]]/[file tail $src]"
  78     }
  79
  80     verbose "Testing $testcase, $option" 1
  81
  82     # Run the compiler and analyze the results.
  83     set options ""
  84     lappend options "additional_flags=-w $option"
  85
  86     set comp_output [gcc_target_compile "$src" "$output" object $options];
  87     gcc_check_compile $testcase $option $output $comp_output
  88     remote_file build delete $output
  89 }
  90
  91 #
  92 # c-torture-execute -- utility to compile and execute a testcase
  93 #
  94 # SOURCES is a list of full pathnames to the test source files.
  95 # The first filename in this list forms the "testcase".
  96 #
  97 # If the testcase has an associated .x file, we source that to run the
  98 # test instead.  We use .x so that we don't lengthen the existing filename
  99 # to more than 14 chars.
 100 #
 101 proc c-torture-execute { sources args } {
 102     global tmpdir tool srcdir output compiler_conditional_xfail_data
 103
 104     # Use the first source filename given as the filename under test.
 105     set src [lindex $sources 0]
 106
 107     if { [llength $args] > 0 } {
 108         set additional_flags [lindex $args 0];
 109     } else {
 110         set additional_flags "";
 111     }
 112     # Check for alternate driver.
 113     if [file exists [file rootname $src].x] {
 114         verbose "Using alternate driver [file rootname [file tail $src]].x" 2
 115         set done_p 0
 116         catch "set done_p \[source [file rootname $src].x\]"
 117         if { $done_p } {
 118             return
 119         }
 120     }
 121
 122     # Look for a loop within the source code - if we don't find one,
 123     # don't pass -funroll[-all]-loops.
 124     global torture_with_loops torture_without_loops
 125     if [expr [search_for $src "for*("]+[search_for $src "while*("]] then {
 126         set option_list $torture_with_loops
 127     } else {
 128         set option_list $torture_without_loops
 129     }
 130
 131     set executable $tmpdir/[file tail [file rootname $src].x]
 132
 133     regsub "^$srcdir/?" $src "" testcase
 134     # If we couldn't rip $srcdir out of `src' then just do the best we can.
 135     # The point is to reduce the unnecessary noise in the logs.  Don't strip
 136     # out too much because different testcases with the same name can confuse
 137     # `test-tool'.
 138     if [string match "/*" $testcase] {
 139         set testcase "[file tail [file dirname $src]]/[file tail $src]"
 140     }
 141
 142     set count 0;
 143     set oldstatus "foo";
 144     foreach option $option_list {
 145         if { $count > 0 } {
 146             set oldexec $execname;
 147         }
 148         set execname "${executable}${count}";
 149         incr count;
 150
 151         # torture_{compile,execute}_xfail are set by the .x script
 152         # (if present)
 153         if [info exists torture_compile_xfail] {
 154             setup_xfail $torture_compile_xfail
 155         }
 156
 157         # torture_execute_before_{compile,execute} can be set by the .x script
 158         # (if present)
 159         if [info exists torture_eval_before_compile] {
 160             set ignore_me [eval $torture_eval_before_compile]
 161         }
 162
 163         remote_file build delete $execname;
 164         verbose "Testing $testcase, $option" 1
 165
 166         set options ""
 167         lappend options "additional_flags=-w $option"
 168         if { $additional_flags != "" } {
 169             lappend options "additional_flags=$additional_flags";
 170         }
 171         set comp_output [gcc_target_compile "$sources" "${execname}" executable $options];
 172
 173         if ![gcc_check_compile "$testcase compilation" $option $execname $comp_output] {
 174             unresolved "$testcase execution, $option"
 175             remote_file build delete $execname
 176             continue
 177         }
 178
 179         # See if this source file uses "long long" types, if it does, and
 180         # no_long_long is set, skip execution of the test.
 181         if [target_info exists no_long_long] then {
 182             if [expr [search_for $src "long long"]] then {
 183                 unsupported "$testcase execution, $option"
 184                 continue
 185             }
 186         }
 187
 188         if [info exists torture_execute_xfail] {
 189             setup_xfail $torture_execute_xfail
 190         }
 191
 192         if [info exists torture_eval_before_execute] {
 193             set ignore_me [eval $torture_eval_before_execute]
 194         }
 195
 196
 197         # Sometimes we end up creating identical executables for two
 198         # consecutive sets of different of compiler options.
 199         #
 200         # In such cases we know the result of this test will be identical
 201         # to the result of the last test.
 202         #
 203         # So in cases where the time to load and run/simulate the test
 204         # is relatively high, compare the two binaries and avoid rerunning
 205         # tests if the executables are identical.
 206         #
 207         # Do not do this for native testing since the cost to load/execute
 208         # the test is fairly small and the comparison step actually slows
 209         # the entire process down because it usually does not "hit".
 210         set skip 0;
 211         if { ![isnative] && [info exists oldexec] } {
 212             if { [remote_file build cmp $oldexec $execname] == 0 } {
 213                 set skip 1;
 214             }
 215         }
 216         if { $skip == 0 } {
 217             set result [gcc_load "$execname" "" ""]
 218             set status [lindex $result 0];
 219             set output [lindex $result 1];
 220         }
 221         if { $oldstatus == "pass" } {
 222             remote_file build delete $oldexec;
 223         }
 224         $status "$testcase execution, $option"
 225         set oldstatus $status;
 226     }
 227     if [info exists status] {
 228         if { $status == "pass" } {
 229             remote_file build delete $execname;
 230         }
 231     }
 232 }
 233
 234 #
 235 # search_for -- looks for a string match in a file
 236 #
 237 proc search_for { file pattern } {
 238     set fd [open $file r]
 239     while { [gets $fd cur_line]>=0 } {
 240         if [string match "*$pattern*" $cur_line] then {
 241             close $fd
 242             return 1
 243         }
 244     }
 245     close $fd
 246     return 0
 247 }
 248
 249 #
 250 # c-torture -- the c-torture testcase source file processor
 251 #
 252 # This runs compilation only tests (no execute tests).
 253 # SRC is the full pathname of the testcase, or just a file name in which case
 254 # we prepend $srcdir/$subdir.
 255 #
 256 # If the testcase has an associated .x file, we source that to run the
 257 # test instead.  We use .x so that we don't lengthen the existing filename
 258 # to more than 14 chars.
 259 #
 260 proc c-torture { args } {
 261     global srcdir subdir compiler_conditional_xfail_data
 262
 263     set src [lindex $args 0];
 264     if { [llength $args] > 1 } {
 265         set options [lindex $args 1];
 266     } else {
 267         set options ""
 268     }
 269
 270     # Prepend $srdir/$subdir if missing.
 271     if ![string match "*/*" $src] {
 272         set src "$srcdir/$subdir/$src"
 273     }
 274
 275     # Check for alternate driver.
 276     if [file exists [file rootname $src].x] {
 277         verbose "Using alternate driver [file rootname [file tail $src]].x" 2
 278         set done_p 0
 279         catch "set done_p \[source [file rootname $src].x\]"
 280         if { $done_p } {
 281             return
 282         }
 283     }
 284
 285     # Look for a loop within the source code - if we don't find one,
 286     # don't pass -funroll[-all]-loops.
 287     global torture_with_loops torture_without_loops
 288     if [expr [search_for $src "for*("]+[search_for $src "while*("]] then {
 289         set option_list $torture_with_loops
 290     } else {
 291         set option_list $torture_without_loops
 292     }
 293
 294     # loop through all the options
 295     foreach option $option_list {
 296         # torture_compile_xfail is set by the .x script (if present)
 297         if [info exists torture_compile_xfail] {
 298             setup_xfail $torture_compile_xfail
 299         }
 300
 301         # torture_execute_before_compile is set by the .x script (if present)
 302         if [info exists torture_eval_before_compile] {
 303             set ignore_me [eval $torture_eval_before_compile]
 304         }
 305
 306         c-torture-compile $src "$option $options"
 307     }
 308 }