gcc/testsuite/lib/fortran-torture.exp - gcc - Git at Google

 # Copyright (C) 2003-2021 Free Software Foundation, Inc.

 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
 # the Free Software Foundation; either version 3 of the License, or
 # (at your option) any later version.
 #
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
 # along with GCC; see the file COPYING3.  If not see
 # <http://www.gnu.org/licenses/>.

 # Please email any bugs, comments, and/or additions to this file to
 # the author.

 # This file was written by Steven Bosscher (s.bosscher@student.tudelft.nl)
 # based on f-torture.exp, which was written by Rob Savoye.

 load_lib target-supports.exp
 load_lib fortran-modules.exp
 load_lib target-utils.exp

 # Return the list of options to use for fortran torture tests.
 # The default option list can be overridden by
 # TORTURE_OPTIONS="{ { list1 } ... { listN } }"
 proc get-fortran-torture-options { } {
     global TORTURE_OPTIONS

     if [info exists TORTURE_OPTIONS] {
 	return $TORTURE_OPTIONS
     }

     # determine if host supports vectorization, and the necessary set
     # of options, based on code from testsuite/vect/vect.exp

     set vectorizer_options [list "-O2" "-ftree-vectorize"]

     if { [istarget powerpc*-*-*]
 	 && [is-effective-target powerpc_altivec_ok]
 	 && [check_vmx_hw_available] } {
 	lappend vectorizer_options "-maltivec"
 	set test_tree_vectorize 1
     } elseif { ( [istarget i?86-*-*] || [istarget x86_64-*-*] )
 	       && [check_effective_target_sse2]
 	       && [check_sse2_hw_available]
 	       && [check_sse_os_support_available] } {
 	lappend vectorizer_options "-msse2"
 	set test_tree_vectorize 1
     } elseif { [istarget mips*-*-*]
 	       && [check_effective_target_mpaired_single]
 	       && [check_effective_target_nomips16] } {
 	lappend vectorizer_options "-mpaired-single"
 	set test_tree_vectorize 1
     } elseif { [istarget sparc*-*-*]
 	       && [check_effective_target_ultrasparc_hw] } {
 	lappend vectorizer_options "-mcpu=ultrasparc" "-mvis"
 	set test_tree_vectorize 1
     } elseif { [istarget alpha*-*-*]
 	       && [check_alpha_max_hw_available] } {
 	lappend vectorizer_options "-mmax"
 	set test_tree_vectorize 1
     } elseif [istarget ia64-*-*] {
 	set test_tree_vectorize 1
     } else {
 	set test_tree_vectorize 0
     }

     set options {}

     lappend options \
 	{ -O0 } \
 	{ -O1 } \
 	{ -O2 } \
 	{ -O2 -fomit-frame-pointer -finline-functions } \
 	{ -O2 -fomit-frame-pointer -finline-functions -funroll-loops } \
 	{ -O2 -fbounds-check } \
 	{ -O3 -g } \
 	{ -Os }
     if { $test_tree_vectorize } {
 	lappend options $vectorizer_options
     }

     if [info exists ADDITIONAL_TORTURE_OPTIONS] {
 	set options [concat $options $ADDITIONAL_TORTURE_OPTIONS]
     }

     return $options
 }


 #
 # fortran-torture-compile -- compile a gfortran.fortran-torture testcase.
 #
 # SRC is the full pathname of the testcase.
 # OPTION is the specific compiler flag we're testing (eg: -O2).
 #
 proc fortran-torture-compile { src option } {
     global output
     global srcdir tmpdir
     global host_triplet

     set output "$tmpdir/[file tail [file rootname $src]].o"

     regsub "(?q)$srcdir/" $src "" testcase

     # If we couldn't rip $srcdir out of `src' then just do the best we can.
     # The point is to reduce the unnecessary noise in the logs.  Don't strip
     # out too much because different testcases with the same name can confuse
     # `test-tool'.
     if [string match "/*" $testcase] {
 	set testcase "[file tail [file dirname $src]]/[file tail $src]"
     }

     verbose "Testing $testcase, $option" 1

     # Run the compiler and get results in comp_output.
     set options ""
     lappend options "additional_flags=-w $option"

     set comp_output [gfortran_target_compile "$src" "$output" object $options]

     # See if we got something bad.
     set fatal_signal "*95*: Internal compiler error: program*got fatal signal"

     if [string match "$fatal_signal 6" $comp_output] then {
 	gfortran_fail $testcase "Got Signal 6, $option"
 	catch { remote_file build delete $output }
 	return
     }

     if [string match "$fatal_signal 11" $comp_output] then {
 	gfortran_fail $testcase "Got Signal 11, $option"
 	catch { remote_file build delete $output }
 	return
     }

     if [string match "*internal compiler error*" $comp_output] then {
 	gfortran_fail $testcase "$option (internal compiler error)"
 	catch { remote_file build delete $output }
 	return
     }

     # We shouldn't get these because of -w, but just in case.
     if [string match "*95*:*warning:*" $comp_output] then {
 	warning "$testcase: (with warnings) $option"
 	send_log "$comp_output\n"
 	unresolved "$testcase, $option"
 	catch { remote_file build delete $output }
 	return
     }

     # Prune warnings we know are unwanted.
     set comp_output [prune_warnings $comp_output]

     # Report if the testcase is not supported.
     set unsupported_message [gfortran_check_unsupported_p $comp_output]
     if { $unsupported_message != "" } {
 	unsupported "$testcase: $unsupported_message"
 	catch { remote_file build delete $output }
 	return
     }

     # remove any leftover LF/CR to make sure any output is legit
     regsub -all -- "\[\r\n\]*" $comp_output "" comp_output

     # If any message remains, we fail.
     if ![string match "" $comp_output] then {
 	gfortran_fail $testcase $option
 	catch { remote_file build delete $output }
 	return
     }

     gfortran_pass $testcase $option
     catch { remote_file build delete $output }
 }


 #
 # fortran-torture-execute -- compile and execute a testcase.
 #
 # SRC is the full pathname of the testcase.
 #
 # If the testcase has an associated .x file, we source that to run the
 # test instead.  We use .x so that we don't lengthen the existing filename
 # to more than 14 chars.
 #
 proc fortran-torture-execute { src } {
     global output
     global srcdir tmpdir
     global tool
     global compiler_conditional_xfail_data
     global torture_with_loops

     # Check for alternate driver.
     set additional_flags ""
     if [file exists [file rootname $src].x] {
 	verbose "Using alternate driver [file rootname [file tail $src]].x" 2
 	set done_p 0
 	catch "set done_p \[source [file rootname $src].x\]"
 	if { $done_p } {
 	    return
 	}
     }

     # Setup the options for the testcase run.
     set option_list $torture_with_loops
     set executable $tmpdir/[file tail [file rootname $src].x]
     regsub "(?q)$srcdir/" $src "" testcase

     # If we couldn't rip $srcdir out of `src' then just do the best we can.
     # The point is to reduce the unnecessary noise in the logs.  Don't strip
     # out too much because different testcases with the same name can confuse
     # `test-tool'.
     if [string match "/*" $testcase] {
 	set testcase "[file tail [file dirname $src]]/[file tail $src]"
     }
     list-module-names $src

     # Walk the list of options and copmile and run the testcase for all
     # options that are not explicitly disabled by the .x script (if present).
     foreach option $option_list {

 	# Torture_{compile,execute}_xfail are set by the .x script.
 	if [info exists torture_compile_xfail] {
 	    setup_xfail $torture_compile_xfail
 	}

 	# Torture_execute_before_{compile,execute} can be set by the .x script.
 	if [info exists torture_eval_before_compile] {
             set ignore_me [eval $torture_eval_before_compile]
 	}

 	# FIXME: We should make sure that the modules required by this testcase
 	# exist.  If not, the testcase should XFAIL.

 	# Compile the testcase.
 	catch { remote_file build delete $executable }
 	verbose "Testing $testcase, $option" 1

 	set options ""
 	lappend options "additional_flags=-w $option"
 	if { $additional_flags != "" } {
 	    lappend options "additional_flags=$additional_flags"
 	}
 	set comp_output [gfortran_target_compile "$src" "$executable" executable $options]

 	# See if we got something bad.
 	set fatal_signal "*95*: Internal compiler error: program*got fatal signal"

 	if [string match "$fatal_signal 6" $comp_output] then {
 	    gfortran_fail $testcase "Got Signal 6, $option"
 	    catch { remote_file build delete $executable }
 	    continue
 	}

 	if [string match "$fatal_signal 11" $comp_output] then {
 	    gfortran_fail $testcase "Got Signal 11, $option"
 	    catch { remote_file build delete $executable }
 	    continue
 	}

 	if [string match "*internal compiler error*" $comp_output] then {
 	    gfortran_fail $testcase "$option (internal compiler error)"
 	    catch { remote_file build delete $executable }
 	    continue
 	}

 	# We shouldn't get these because of -w, but just in case.
 	if [string match "*95*:*warning:*" $comp_output] then {
 	    warning "$testcase: (with warnings) $option"
 	    send_log "$comp_output\n"
 	    unresolved "$testcase, $option"
 	    catch { remote_file build delete $executable }
 	    continue
 	}

 	# Prune warnings we know are unwanted.
 	set comp_output [prune_warnings $comp_output]

 	# Report if the testcase is not supported.
 	set unsupported_message [gfortran_check_unsupported_p $comp_output]
 	if { $unsupported_message != "" } {
 	    unsupported "$testcase: $unsupported_message"
 	    continue
 	} elseif ![file exists $executable] {
 	    if ![is3way] {
 		fail "$testcase compilation, $option"
 		untested "$testcase execution, $option"
 		continue
 	    } else {
 		# FIXME: since we can't test for the existence of a remote
 		# file without short of doing an remote file list, we assume
 		# that since we got no output, it must have compiled.
 		pass "$testcase compilation, $option"
 	    }
 	} else {
 	    pass "$testcase compilation, $option"
 	}

 	# See if this source file uses INTEGER(KIND=8) types, if it does, and
 	# no_long_long is set, skip execution of the test.
 	# FIXME: We should also look for F95 style "_8" or select_int_kind()
 	# integers, but that is obviously much harder than just regexping this.
 	# So maybe we should just avoid those in testcases.
 	if [target_info exists no_long_long] then {
 	    if [expr [search_for_re $src "integer\*8"] \
 	             +[search_for_re $src "integer *( *8 *)"] \
 	             +[search_for_re $src "integer *( *kind *= *8 *)"]] \
 	      then {
 		untested "$testcase execution, $option"
 		continue
 	    }
 	}

 	if [info exists torture_execute_xfail] {
 	    setup_xfail $torture_execute_xfail
 	}

 	if [info exists torture_eval_before_execute] {
             set ignore_me [eval $torture_eval_before_execute]
 	}

 	# Run the testcase, and analyse the output.
 	set result [gfortran_load "$executable" "" ""]
 	set status [lindex $result 0]
 	set output [lindex $result 1]
         if { $status == "pass" } {
 	    catch { remote_file build delete $executable }
         }
 	$status "$testcase execution, $option"
     }
     cleanup-modules ""
 }


 #
 # search_for_re -- looks for a string match in a file
 #
 proc search_for_re { file pattern } {
     set fd [open $file r]
     while { [gets $fd cur_line]>=0 } {
 	set lower [string tolower $cur_line]
 	if [regexp "$pattern" $lower] then {
 	    close $fd
 	    return 1
 	}
     }
     close $fd
     return 0
 }


 #
 # fortran-torture -- the fortran-torture testcase source file processor
 #
 # This runs compilation only tests (no execute tests).
 #
 # SRC is the full pathname of the testcase, or just a file name in which
 # case we prepend $srcdir/$subdir.
 #
 # If the testcase has an associated .x file, we source that to run the
 # test instead.  We use .x so that we don't lengthen the existing filename
 # to more than 14 chars.
 #
 proc fortran-torture { args } {
     global srcdir subdir
     global compiler_conditional_xfail_data
     global torture_with_loops

     set src [lindex $args 0]
     if { [llength $args] > 1 } {
 	set options [lindex $args 1]
     } else {
 	set options ""
     }

     # Prepend $srdir/$subdir if missing.
     if ![string match "*/*" $src] {
 	set src "$srcdir/$subdir/$src"
     }

     # Check for alternate driver.
     if [file exists [file rootname $src].x] {
 	verbose "Using alternate driver [file rootname [file tail $src]].x" 2
 	set done_p 0
 	catch "set done_p \[source [file rootname $src].x\]"
 	if { $done_p } {
 	    return
 	}
     }
     list-module-names $src

     # loop through all the options
     set option_list $torture_with_loops
     foreach option $option_list {

 	# torture_compile_xfail is set by the .x script (if present)
 	if [info exists torture_compile_xfail] {
 	    setup_xfail $torture_compile_xfail
 	}

 	# torture_execute_before_compile is set by the .x script (if present)
 	if [info exists torture_eval_before_compile] {
             set ignore_me [eval $torture_eval_before_compile]
 	}

 	fortran-torture-compile $src "$option $options"
 	cleanup-modules ""
     }
 }

 #
 # add-ieee-options -- add options necessary for 100% ieee conformance.
 #
 proc add-ieee-options { } {
     # Ensure that excess precision does not cause problems.
     if { [istarget i?86-*-*]
 	 || [istarget m68k-*-*] } then {
       uplevel 1 lappend additional_flags "-ffloat-store"
     }

     # Enable full IEEE compliance mode.
     if { [istarget alpha*-*-*]
          || [istarget sh*-*-*] } then {
       uplevel 1 lappend additional_flags "-mieee"
     }
 }
	# Copyright (C) 2003-2021 Free Software Foundation, Inc.

	# This program is free software; you can redistribute it and/or modify
	# it under the terms of the GNU General Public License as published by
	# the Free Software Foundation; either version 3 of the License, or
	# (at your option) any later version.
	#
	# This program is distributed in the hope that it will be useful,
	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	# GNU General Public License for more details.
	#
	# You should have received a copy of the GNU General Public License
	# along with GCC; see the file COPYING3. If not see
	# <http://www.gnu.org/licenses/>.

	# Please email any bugs, comments, and/or additions to this file to
	# the author.

	# This file was written by Steven Bosscher (s.bosscher@student.tudelft.nl)
	# based on f-torture.exp, which was written by Rob Savoye.

	load_lib target-supports.exp
	load_lib fortran-modules.exp
	load_lib target-utils.exp

	# Return the list of options to use for fortran torture tests.
	# The default option list can be overridden by
	# TORTURE_OPTIONS="{ { list1 } ... { listN } }"
	proc get-fortran-torture-options { } {
	global TORTURE_OPTIONS

	if [info exists TORTURE_OPTIONS] {
	return $TORTURE_OPTIONS
	}

	# determine if host supports vectorization, and the necessary set
	# of options, based on code from testsuite/vect/vect.exp

	set vectorizer_options [list "-O2" "-ftree-vectorize"]

	if { [istarget powerpc--*]
	&& [is-effective-target powerpc_altivec_ok]
	&& [check_vmx_hw_available] } {
	lappend vectorizer_options "-maltivec"
	set test_tree_vectorize 1
	} elseif { ( [istarget i?86--] \|\| [istarget x86_64--] )
	&& [check_effective_target_sse2]
	&& [check_sse2_hw_available]
	&& [check_sse_os_support_available] } {
	lappend vectorizer_options "-msse2"
	set test_tree_vectorize 1
	} elseif { [istarget mips--*]
	&& [check_effective_target_mpaired_single]
	&& [check_effective_target_nomips16] } {
	lappend vectorizer_options "-mpaired-single"
	set test_tree_vectorize 1
	} elseif { [istarget sparc--*]
	&& [check_effective_target_ultrasparc_hw] } {
	lappend vectorizer_options "-mcpu=ultrasparc" "-mvis"
	set test_tree_vectorize 1
	} elseif { [istarget alpha--*]
	&& [check_alpha_max_hw_available] } {
	lappend vectorizer_options "-mmax"
	set test_tree_vectorize 1
	} elseif [istarget ia64--] {
	set test_tree_vectorize 1
	} else {
	set test_tree_vectorize 0
	}

	set options {}

	lappend options \
	{ -O0 } \
	{ -O1 } \
	{ -O2 } \
	{ -O2 -fomit-frame-pointer -finline-functions } \
	{ -O2 -fomit-frame-pointer -finline-functions -funroll-loops } \
	{ -O2 -fbounds-check } \
	{ -O3 -g } \
	{ -Os }
	if { $test_tree_vectorize } {
	lappend options $vectorizer_options
	}

	if [info exists ADDITIONAL_TORTURE_OPTIONS] {
	set options [concat $options $ADDITIONAL_TORTURE_OPTIONS]
	}

	return $options
	}


	#
	# fortran-torture-compile -- compile a gfortran.fortran-torture testcase.
	#
	# SRC is the full pathname of the testcase.
	# OPTION is the specific compiler flag we're testing (eg: -O2).
	#
	proc fortran-torture-compile { src option } {
	global output
	global srcdir tmpdir
	global host_triplet

	set output "$tmpdir/[file tail [file rootname $src]].o"

	regsub "(?q)$srcdir/" $src "" testcase

	# If we couldn't rip $srcdir out of `src' then just do the best we can.
	# The point is to reduce the unnecessary noise in the logs. Don't strip
	# out too much because different testcases with the same name can confuse
	# `test-tool'.
	if [string match "/*" $testcase] {
	set testcase "[file tail [file dirname $src]]/[file tail $src]"
	}

	verbose "Testing $testcase, $option" 1

	# Run the compiler and get results in comp_output.
	set options ""
	lappend options "additional_flags=-w $option"

	set comp_output [gfortran_target_compile "$src" "$output" object $options]

	# See if we got something bad.
	set fatal_signal "95: Internal compiler error: program*got fatal signal"

	if [string match "$fatal_signal 6" $comp_output] then {
	gfortran_fail $testcase "Got Signal 6, $option"
	catch { remote_file build delete $output }
	return
	}

	if [string match "$fatal_signal 11" $comp_output] then {
	gfortran_fail $testcase "Got Signal 11, $option"
	catch { remote_file build delete $output }
	return
	}

	if [string match "internal compiler error" $comp_output] then {
	gfortran_fail $testcase "$option (internal compiler error)"
	catch { remote_file build delete $output }
	return
	}

	# We shouldn't get these because of -w, but just in case.
	if [string match "95:warning:" $comp_output] then {
	warning "$testcase: (with warnings) $option"
	send_log "$comp_output\n"
	unresolved "$testcase, $option"
	catch { remote_file build delete $output }
	return
	}

	# Prune warnings we know are unwanted.
	set comp_output [prune_warnings $comp_output]

	# Report if the testcase is not supported.
	set unsupported_message [gfortran_check_unsupported_p $comp_output]
	if { $unsupported_message != "" } {
	unsupported "$testcase: $unsupported_message"
	catch { remote_file build delete $output }
	return
	}

	# remove any leftover LF/CR to make sure any output is legit
	regsub -all -- "\[\r\n\]*" $comp_output "" comp_output

	# If any message remains, we fail.
	if ![string match "" $comp_output] then {
	gfortran_fail $testcase $option
	catch { remote_file build delete $output }
	return
	}

	gfortran_pass $testcase $option
	catch { remote_file build delete $output }
	}


	#
	# fortran-torture-execute -- compile and execute a testcase.
	#
	# SRC is the full pathname of the testcase.
	#
	# If the testcase has an associated .x file, we source that to run the
	# test instead. We use .x so that we don't lengthen the existing filename
	# to more than 14 chars.
	#
	proc fortran-torture-execute { src } {
	global output
	global srcdir tmpdir
	global tool
	global compiler_conditional_xfail_data
	global torture_with_loops

	# Check for alternate driver.
	set additional_flags ""
	if [file exists [file rootname $src].x] {
	verbose "Using alternate driver [file rootname [file tail $src]].x" 2
	set done_p 0
	catch "set done_p \[source [file rootname $src].x\]"
	if { $done_p } {
	return
	}
	}

	# Setup the options for the testcase run.
	set option_list $torture_with_loops
	set executable $tmpdir/[file tail [file rootname $src].x]
	regsub "(?q)$srcdir/" $src "" testcase

	# If we couldn't rip $srcdir out of `src' then just do the best we can.
	# The point is to reduce the unnecessary noise in the logs. Don't strip
	# out too much because different testcases with the same name can confuse
	# `test-tool'.
	if [string match "/*" $testcase] {
	set testcase "[file tail [file dirname $src]]/[file tail $src]"
	}
	list-module-names $src

	# Walk the list of options and copmile and run the testcase for all
	# options that are not explicitly disabled by the .x script (if present).
	foreach option $option_list {

	# Torture_{compile,execute}_xfail are set by the .x script.
	if [info exists torture_compile_xfail] {
	setup_xfail $torture_compile_xfail
	}

	# Torture_execute_before_{compile,execute} can be set by the .x script.
	if [info exists torture_eval_before_compile] {
	set ignore_me [eval $torture_eval_before_compile]
	}

	# FIXME: We should make sure that the modules required by this testcase
	# exist. If not, the testcase should XFAIL.

	# Compile the testcase.
	catch { remote_file build delete $executable }
	verbose "Testing $testcase, $option" 1

	set options ""
	lappend options "additional_flags=-w $option"
	if { $additional_flags != "" } {
	lappend options "additional_flags=$additional_flags"
	}
	set comp_output [gfortran_target_compile "$src" "$executable" executable $options]

	# See if we got something bad.
	set fatal_signal "95: Internal compiler error: program*got fatal signal"

	if [string match "$fatal_signal 6" $comp_output] then {
	gfortran_fail $testcase "Got Signal 6, $option"
	catch { remote_file build delete $executable }
	continue
	}

	if [string match "$fatal_signal 11" $comp_output] then {
	gfortran_fail $testcase "Got Signal 11, $option"
	catch { remote_file build delete $executable }
	continue
	}

	if [string match "internal compiler error" $comp_output] then {
	gfortran_fail $testcase "$option (internal compiler error)"
	catch { remote_file build delete $executable }
	continue
	}

	# We shouldn't get these because of -w, but just in case.
	if [string match "95:warning:" $comp_output] then {
	warning "$testcase: (with warnings) $option"
	send_log "$comp_output\n"
	unresolved "$testcase, $option"
	catch { remote_file build delete $executable }
	continue
	}

	# Prune warnings we know are unwanted.
	set comp_output [prune_warnings $comp_output]

	# Report if the testcase is not supported.
	set unsupported_message [gfortran_check_unsupported_p $comp_output]
	if { $unsupported_message != "" } {
	unsupported "$testcase: $unsupported_message"
	continue
	} elseif ![file exists $executable] {
	if ![is3way] {
	fail "$testcase compilation, $option"
	untested "$testcase execution, $option"
	continue
	} else {
	# FIXME: since we can't test for the existence of a remote
	# file without short of doing an remote file list, we assume
	# that since we got no output, it must have compiled.
	pass "$testcase compilation, $option"
	}
	} else {
	pass "$testcase compilation, $option"
	}

	# See if this source file uses INTEGER(KIND=8) types, if it does, and
	# no_long_long is set, skip execution of the test.
	# FIXME: We should also look for F95 style "_8" or select_int_kind()
	# integers, but that is obviously much harder than just regexping this.
	# So maybe we should just avoid those in testcases.
	if [target_info exists no_long_long] then {
	if [expr [search_for_re $src "integer\*8"] \
	+[search_for_re $src "integer ( 8 *)"] \
	+[search_for_re $src "integer ( kind = 8 *)"]] \
	then {
	untested "$testcase execution, $option"
	continue
	}
	}

	if [info exists torture_execute_xfail] {
	setup_xfail $torture_execute_xfail
	}

	if [info exists torture_eval_before_execute] {
	set ignore_me [eval $torture_eval_before_execute]
	}

	# Run the testcase, and analyse the output.
	set result [gfortran_load "$executable" "" ""]
	set status [lindex $result 0]
	set output [lindex $result 1]
	if { $status == "pass" } {
	catch { remote_file build delete $executable }
	}
	$status "$testcase execution, $option"
	}
	cleanup-modules ""
	}


	#
	# search_for_re -- looks for a string match in a file
	#
	proc search_for_re { file pattern } {
	set fd [open $file r]
	while { [gets $fd cur_line]>=0 } {
	set lower [string tolower $cur_line]
	if [regexp "$pattern" $lower] then {
	close $fd
	return 1
	}
	}
	close $fd
	return 0
	}


	#
	# fortran-torture -- the fortran-torture testcase source file processor
	#
	# This runs compilation only tests (no execute tests).
	#
	# SRC is the full pathname of the testcase, or just a file name in which
	# case we prepend $srcdir/$subdir.
	#
	# If the testcase has an associated .x file, we source that to run the
	# test instead. We use .x so that we don't lengthen the existing filename
	# to more than 14 chars.
	#
	proc fortran-torture { args } {
	global srcdir subdir
	global compiler_conditional_xfail_data
	global torture_with_loops

	set src [lindex $args 0]
	if { [llength $args] > 1 } {
	set options [lindex $args 1]
	} else {
	set options ""
	}

	# Prepend $srdir/$subdir if missing.
	if ![string match "/" $src] {
	set src "$srcdir/$subdir/$src"
	}

	# Check for alternate driver.
	if [file exists [file rootname $src].x] {
	verbose "Using alternate driver [file rootname [file tail $src]].x" 2
	set done_p 0
	catch "set done_p \[source [file rootname $src].x\]"
	if { $done_p } {
	return
	}
	}
	list-module-names $src

	# loop through all the options
	set option_list $torture_with_loops
	foreach option $option_list {

	# torture_compile_xfail is set by the .x script (if present)
	if [info exists torture_compile_xfail] {
	setup_xfail $torture_compile_xfail
	}

	# torture_execute_before_compile is set by the .x script (if present)
	if [info exists torture_eval_before_compile] {
	set ignore_me [eval $torture_eval_before_compile]
	}

	fortran-torture-compile $src "$option $options"
	cleanup-modules ""
	}
	}

	#
	# add-ieee-options -- add options necessary for 100% ieee conformance.
	#
	proc add-ieee-options { } {
	# Ensure that excess precision does not cause problems.
	if { [istarget i?86--]
	\|\| [istarget m68k--] } then {
	uplevel 1 lappend additional_flags "-ffloat-store"
	}

	# Enable full IEEE compliance mode.
	if { [istarget alpha--*]
	\|\| [istarget sh--*] } then {
	uplevel 1 lappend additional_flags "-mieee"
	}
	}