1 # Copyright (C) 2001, 2004 Free Software Foundation, Inc.
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.
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.
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, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17 # This script was submitted by Janis Johnson <janis187@us.ibm.com>.
19 # Test the functionality and optionally, performance improvement, of
20 # programs compiled with profile-directed optimizations. Compile and
21 # run a test with profile options, compile it with options using the
22 # profile feedback, and then run the test again. Optionally compile
23 # and run a third time without the profile-directed optimization and
24 # compare timing results of the program with normal optimization and
25 # with the profile-directed optimization. Each test is run using
26 # multiple sets of optimization and/or code generation options in
27 # addition to the profiling and feedback options.
29 # If perf_ext is defined and the performance value for the
30 # profile-directed test run is nonzero then the performance check will
33 global PROFOPT_OPTIONS perf_delta
35 # The including .exp file must define these.
36 global tool profile_option feedback_option prof_ext
37 if ![info exists tool] {
38 error "Tools is not specified."
40 if ![info exists prof_ext] {
41 error "No profile data file extensions specified."
44 # The maximum perforance degradation can be defined in the including file.
45 if ![info exists perf_delta] {
49 # The default option list can be overridden by
50 # PROFOPT_OPTIONS="{ { list1 } ... { list2 } }"
52 if ![info exists PROFOPT_OPTIONS] {
53 set PROFOPT_OPTIONS [list \
63 set prof_option_list $PROFOPT_OPTIONS
66 # profopt-cleanup -- remove profiling or performance results files.
68 # TESTCASE is the name of the test
69 # EXT is the extensions of files to remove
71 proc profopt-cleanup { testcase extlist } {
72 set basename [file tail $testcase]
73 set base [file rootname $basename]
74 foreach ext $extlist {
75 set files [glob -nocomplain $base.$ext]
77 eval "remote_file build delete $files"
83 # profopt-perf-value -- get performance value for a test
85 # TESTCASE is the name of the test
86 # PERF_EXT is the extension of the performance result file
87 # OPTSTR is the string of compiler options
89 proc profopt-perf-value { testcase perf_ext optstr } {
90 set basename [file tail $testcase]
91 set base [file rootname $basename]
92 set files [glob -nocomplain $base.$perf_ext]
93 # The file doesn't exist; let the caller decide if that's a problem.
97 remote_upload host $base.$perf_ext $base.$perf_ext
98 set fd [open $base.$perf_ext r]
101 if [regexp "TIME" $line] {
102 if [regexp "TIME -1" $line] {
103 fail "$testcase perf check: no consistent time available, $optstr"
105 } elseif ![regexp "(\[0-9\]+)" "$line" val] {
109 # Report problems with an existing file.
111 fail "$testcase perf check: file $base.$perf_ext has wrong format, $optstr"
114 profopt-cleanup $testcase $perf_ext
119 # c-prof-execute -- compile for profiling and then feedback, then normal
121 # SRC is the full pathname of the testcase.
123 proc profopt-execute { src } {
125 global prof_option_list
126 global tool profile_option feedback_option prof_ext perf_ext perf_delta
129 if ![info exists profile_option] {
130 error "No profile option specified for first compile."
132 if ![info exists feedback_option] {
133 error "No feedback option specified for second compile."
136 regsub "^$srcdir/?" $src "" testcase
137 # If we couldn't rip $srcdir out of `src' then just do the best we can.
138 # The point is to reduce the unnecessary noise in the logs. Don't strip
139 # out too much because different testcases with the same name can confuse
141 if [string match "/*" $testcase] {
142 set testcase "[file tail [file dirname $src]]/[file tail $src]"
145 set executable $tmpdir/[file tail [file rootname $src].x]
148 foreach option $prof_option_list {
149 set execname1 "${executable}${count}1"
150 set execname2 "${executable}${count}2"
151 set execname3 "${executable}${count}3"
154 remote_file build delete $execname1
155 remote_file build delete $execname2
156 remote_file build delete $execname3
157 verbose "Testing $testcase, $option" 1
159 # Remove old profiling and performance data files.
160 profopt-cleanup $testcase $prof_ext
161 if [info exists perf_ext] {
162 profopt-cleanup $testcase $perf_ext
165 # Compile for profiling.
168 lappend options "additional_flags=$option $profile_option"
169 set optstr "$option $profile_option"
170 set comp_output [${tool}_target_compile "$src" "$execname1" executable $options]
171 if ![${tool}_check_compile "$testcase compilation" $optstr $execname1 $comp_output] {
172 unresolved "$testcase execution, $optstr"
173 unresolved "$testcase compilation, $option $feedback_option"
174 unresolved "$testcase execution, $option $feedback_option"
178 # Run the profiled test.
180 set result [${tool}_load $execname1 "" ""]
181 set status [lindex $result 0]
182 # Make sure the profile data was generated, and fail if not.
183 if { $status == "pass" } {
184 set basename [file tail $testcase]
185 set base [file rootname $basename]
186 foreach ext $prof_ext {
187 set files [glob -nocomplain $base.$ext]
188 if { $files == "" } {
190 fail "$testcase execution: file $base.$ext does not exist, $option $profile_option"
192 $status "$testcase execution, $optstr"
196 $status "$testcase execution, $optstr"
198 # Quit for this round if it failed
199 if { $status != "pass" } {
200 unresolved "$testcase compilation, $option $feedback_option"
201 unresolved "$testcase execution, $option $feedback_option"
204 remote_file build delete $execname1
206 # Compile with feedback-directed optimizations.
209 lappend options "additional_flags=$option $feedback_option"
210 set optstr "$option $feedback_option"
211 set comp_output [${tool}_target_compile "$src" "$execname2" "executable" $options]
212 if ![${tool}_check_compile "$testcase compilation" $optstr $execname2 $comp_output] {
213 unresolved "$testcase execution, $optstr"
217 # Run the profile-directed optimized test.
219 set result [${tool}_load "$execname2" "" ""]
220 set status [lindex $result 0]
221 $status "$testcase execution, $optstr"
222 if { $status != "pass" } {
226 # Remove the profiling data files.
227 profopt-cleanup $testcase $prof_ext
229 # If the test is not expected to produce performance data then
231 if ![info exists perf_ext] {
232 remote_file build delete $execname2
236 # Get the performance data from the test built with
237 # profile-directed optimization. If the file doesn't exist or if
238 # the value is zero, skip the performance comparison.
239 set val2 [profopt-perf-value $testcase $perf_ext $optstr]
241 remote_file build delete $execname2
245 # Compile with normal optimizations.
248 lappend options "additional_flags=$option"
250 set comp_output [${tool}_target_compile "$src" "$execname3" "executable" $options]
251 if ![${tool}_check_compile "$testcase compilation" $optstr $execname3 $comp_output] {
252 unresolved "$testcase execution, $optstr"
253 unresolved "$testcase perf check, $optstr"
257 # Run the test with normal optimizations.
259 set result [${tool}_load "$execname3" "" ""]
260 set status [lindex $result 0]
261 $status "$testcase execution, $optstr"
262 if { $status != "pass" } {
263 unresolved "$testcase perf check, $optstr"
267 # Get the performance data from the test built with normal
269 set val1 [profopt-perf-value $testcase $perf_ext $optstr]
272 # The data file existed with the profile-directed
273 # optimization so this one should, too.
274 fail "$testcase perf check: file $base.$perf_ext does not exist, $optstr"
279 # Compare results of the two runs and fail if the time with the
280 # profile-directed optimization is significantly more than the time
283 if { $val2 > $val1 } {
284 # Check for a performance degration outside of allowable limits.
285 if { [expr $val2 - $val1] > [expr [expr $val1 * $perf_delta] / 100] } {
289 if { $status == "fail" } {
290 fail "$testcase perf check: orig: $val1 new: $val2, $optstr"
292 $status "$testcase perf check, $optstr"
293 verbose "$testcase orig: $val1 new: $val2, $optstr" 2
294 remote_file build delete $execname2
295 remote_file build delete $execname3