334 lines
10 KiB
Plaintext
334 lines
10 KiB
Plaintext
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# Copyright (C) 1992-2021 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with GCC; see the file COPYING3. If not see
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# <http://www.gnu.org/licenses/>.
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# This file was written by Rob Savoye. (rob@cygnus.com)
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load_lib target-supports.exp
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load_lib file-format.exp
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load_lib target-libpath.exp
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load_lib target-utils.exp
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global GCC_UNDER_TEST
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if ![info exists GCC_UNDER_TEST] {
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set GCC_UNDER_TEST "[find_gcc]"
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}
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global orig_environment_saved
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# This file may be sourced, so don't override environment settings
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# that have been previously setup.
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if { $orig_environment_saved == 0 } {
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append ld_library_path [gcc-set-multilib-library-path $GCC_UNDER_TEST]
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set_ld_library_path_env_vars
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}
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# The default option list can be overridden by
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# TORTURE_OPTIONS="{ list1 } ... { listN }"
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set LTO_TORTURE_OPTIONS ""
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if [info exists TORTURE_OPTIONS] {
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set C_TORTURE_OPTIONS $TORTURE_OPTIONS
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} else {
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# It is theoretically beneficial to group all of the O2/O3 options together,
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# as in many cases the compiler will generate identical executables for
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# all of them--and the c-torture testsuite will skip testing identical
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# executables multiple times.
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# Also note that -finline-functions is explicitly included in one of the
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# items below, even though -O3 is also specified, because some ports may
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# choose to disable inlining functions by default, even when optimizing.
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set C_TORTURE_OPTIONS [list \
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{ -O0 } \
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{ -O1 } \
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{ -O2 } \
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{ -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions } \
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{ -O3 -g } \
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{ -Os } \
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{ -Og -g } ]
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if [check_effective_target_lto] {
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# When having plugin test both slim and fat LTO and plugin/nonplugin
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# path.
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if [check_linker_plugin_available] {
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set LTO_TORTURE_OPTIONS [list \
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{ -O2 -flto -fno-use-linker-plugin -flto-partition=none } \
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{ -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects }
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]
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} else {
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set LTO_TORTURE_OPTIONS [list \
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{ -O2 -flto -flto-partition=none } \
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{ -O2 -flto }
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]
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}
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}
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}
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if [info exists ADDITIONAL_TORTURE_OPTIONS] {
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set C_TORTURE_OPTIONS \
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[concat $C_TORTURE_OPTIONS $ADDITIONAL_TORTURE_OPTIONS]
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}
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#
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# c-torture-compile -- runs the Tege C-torture test
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#
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# SRC is the full pathname of the testcase.
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# OPTION is the specific compiler flag we're testing (eg: -O2).
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#
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proc c-torture-compile { src option } {
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global output
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global srcdir tmpdir
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global host_triplet
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set output "$tmpdir/[file tail [file rootname $src]].o"
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regsub "(?q)$srcdir/" $src "" testcase
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# If we couldn't rip $srcdir out of `src' then just do the best we can.
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# The point is to reduce the unnecessary noise in the logs. Don't strip
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# out too much because different testcases with the same name can confuse
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# `test-tool'.
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if [string match "/*" $testcase] {
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set testcase "[file tail [file dirname $src]]/[file tail $src]"
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}
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verbose "Testing $testcase, $option" 1
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# Run the compiler and analyze the results.
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set options ""
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lappend options "additional_flags=-w $option"
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set comp_output [gcc_target_compile "$src" "$output" object $options]
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gcc_check_compile $testcase $option $output $comp_output
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file_on_host delete $output
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}
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#
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# c-torture-execute -- utility to compile and execute a testcase
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#
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# SOURCES is a list of full pathnames to the test source files.
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# The first filename in this list forms the "testcase".
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#
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# If the testcase has an associated .x file, we source that to run the
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# test instead. We use .x so that we don't lengthen the existing filename
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# to more than 14 chars.
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#
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proc c-torture-execute { sources args } {
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global tmpdir tool srcdir output compiler_conditional_xfail_data
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# Use the first source filename given as the filename under test.
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set src [lindex $sources 0]
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if { [llength $args] > 0 } {
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set additional_flags [lindex $args 0]
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} else {
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set additional_flags ""
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}
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# Check for alternate driver.
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if [file exists [file rootname $src].x] {
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verbose "Using alternate driver [file rootname [file tail $src]].x" 2
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set done_p 0
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catch "set done_p \[source [file rootname $src].x\]"
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if { $done_p } {
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return
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}
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}
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# Look for a loop within the source code - if we don't find one,
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# don't pass -funroll[-all]-loops.
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global torture_with_loops torture_without_loops
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if [expr [search_for $src "for*("]+[search_for $src "while*("]] then {
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set option_list $torture_with_loops
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} else {
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set option_list $torture_without_loops
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}
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set executable $tmpdir/[file tail [file rootname $src].x]
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regsub "(?q)$srcdir/" $src "" testcase
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# If we couldn't rip $srcdir out of `src' then just do the best we can.
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# The point is to reduce the unnecessary noise in the logs. Don't strip
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# out too much because different testcases with the same name can confuse
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# `test-tool'.
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if [string match "/*" $testcase] {
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set testcase "[file tail [file dirname $src]]/[file tail $src]"
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}
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set count 0
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set oldstatus "foo"
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foreach option $option_list {
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if { $count > 0 } {
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set oldexec $execname
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}
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set execname "${executable}${count}"
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incr count
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# torture_{compile,execute}_xfail are set by the .x script
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# (if present)
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if [info exists torture_compile_xfail] {
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setup_xfail $torture_compile_xfail
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}
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# torture_execute_before_{compile,execute} can be set by the .x script
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# (if present)
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if [info exists torture_eval_before_compile] {
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set ignore_me [eval $torture_eval_before_compile]
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}
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file_on_host delete $execname
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verbose "Testing $testcase, $option" 1
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set options ""
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lappend options "additional_flags=-w $option"
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if { $additional_flags != "" } {
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lappend options "additional_flags=$additional_flags"
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}
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set comp_output [gcc_target_compile "$sources" "${execname}" executable $options]
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if ![gcc_check_compile "$testcase compilation" $option $execname $comp_output] {
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unresolved "$testcase execution, $option"
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file_on_host delete $execname
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continue
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}
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# See if this source file uses "long long" types, if it does, and
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# no_long_long is set, skip execution of the test.
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if [target_info exists no_long_long] then {
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if [expr [search_for $src "long long"]] then {
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unsupported "$testcase execution, $option"
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continue
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}
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}
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if [info exists torture_execute_xfail] {
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setup_xfail $torture_execute_xfail
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}
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if [info exists torture_eval_before_execute] {
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set ignore_me [eval $torture_eval_before_execute]
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}
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# Sometimes we end up creating identical executables for two
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# consecutive sets of different of compiler options.
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#
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# In such cases we know the result of this test will be identical
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# to the result of the last test.
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#
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# So in cases where the time to load and run/simulate the test
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# is relatively high, compare the two binaries and avoid rerunning
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# tests if the executables are identical.
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#
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# Do not do this for native testing since the cost to load/execute
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# the test is fairly small and the comparison step actually slows
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# the entire process down because it usually does not "hit".
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set skip 0
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if { ![isnative] && [info exists oldexec] } {
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if { [file_on_host cmp $oldexec $execname] == 0 } {
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set skip 1
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}
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}
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if { $skip == 0 } {
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set result [gcc_load "$execname" "" ""]
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set status [lindex $result 0]
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set output [lindex $result 1]
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}
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if { $oldstatus == "pass" } {
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file_on_host delete $oldexec
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}
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$status "$testcase execution, $option"
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set oldstatus $status
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}
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if [info exists status] {
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if { $status == "pass" } {
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file_on_host delete $execname
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}
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}
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}
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#
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# search_for -- looks for a string match in a file
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#
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proc search_for { file pattern } {
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set fd [open $file r]
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while { [gets $fd cur_line]>=0 } {
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if [string match "*$pattern*" $cur_line] then {
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close $fd
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return 1
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}
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}
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close $fd
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return 0
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}
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#
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# c-torture -- the c-torture testcase source file processor
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#
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# This runs compilation only tests (no execute tests).
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# SRC is the full pathname of the testcase, or just a file name in which case
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# we prepend $srcdir/$subdir.
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#
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# If the testcase has an associated .x file, we source that to run the
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# test instead. We use .x so that we don't lengthen the existing filename
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# to more than 14 chars.
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#
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proc c-torture { args } {
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global srcdir subdir compiler_conditional_xfail_data
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set src [lindex $args 0]
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if { [llength $args] > 1 } {
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set options [lindex $args 1]
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} else {
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set options ""
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}
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# Prepend $srdir/$subdir if missing.
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if ![string match "*/*" $src] {
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set src "$srcdir/$subdir/$src"
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}
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# Check for alternate driver.
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if [file exists [file rootname $src].x] {
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verbose "Using alternate driver [file rootname [file tail $src]].x" 2
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set done_p 0
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catch "set done_p \[source [file rootname $src].x\]"
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if { $done_p } {
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return
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}
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}
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# Look for a loop within the source code - if we don't find one,
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# don't pass -funroll[-all]-loops.
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global torture_with_loops torture_without_loops
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if [expr [search_for $src "for*("]+[search_for $src "while*("]] then {
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set option_list $torture_with_loops
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} else {
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set option_list $torture_without_loops
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}
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# loop through all the options
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foreach option $option_list {
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# torture_compile_xfail is set by the .x script (if present)
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if [info exists torture_compile_xfail] {
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setup_xfail $torture_compile_xfail
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}
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# torture_execute_before_compile is set by the .x script (if present)
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if [info exists torture_eval_before_compile] {
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set ignore_me [eval $torture_eval_before_compile]
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}
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c-torture-compile $src "$option $options"
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}
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}
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