1 # Copyright (C) 1997, 2007, 2008, 2009, 2010 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 3 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 GCC; see the file COPYING3. If not see
15 # <http://www.gnu.org/licenses/>.
17 # A MIPS version of the GCC dg.exp driver.
19 # There are many MIPS features that we want to test, and many of those
20 # features are specific to certain architectures, certain ABIs and so on.
21 # There are therefore many cases in which we want to test something that
22 # is incompatible with the user's chosen test options.
24 # In most dg testsuites, the options added by dg-options have a lower
25 # priority than the options chosen by the user. For example, if a test
28 # { dg-options "-mips1" }
30 # and the user passes the following option to runtest:
32 # --target_board unix/-mips3
34 # the test would be compiled as MIPS III rather than MIPS I. If the
35 # test really wouldn't work with -mips3, normal practice would be to
36 # have something like:
38 # { dg-do compile { target can_force_mips1 } }
40 # so that the test is skipped when an option like -mips3 is passed.
42 # Sticking to the same approach here would cause us to skip many tests,
43 # even though the toolchain can generate the required code. For example,
44 # there are 6 MIPS ABIs, plus variants. Some configurations support
45 # more than one ABI, so it is natural to use something like:
47 # --target_board unix{-mabi=n32,-mabi=32,-mabi=64}
49 # when testing them. But these -mabi=* options would normally prevent any
50 # EABI and o64 tests from running.
52 # This testsuite therefore defines a local version of dg-options that
53 # overrides any user options that are incompatible with the test options.
54 # It tries to keep the other user options intact.
57 # Most of the tests in this testsuite are scan-assembler tests, but
58 # sometimes we need a link test instead. In these cases, we must not
59 # try to link code with options that are incompatible with the current
60 # multilib, because xgcc is passed -L and -B options that are specific
63 # Normal GCC practice would be to skip incompatible link tests as
64 # unsupported, but in this particular case, it seems better to downgrade
65 # them to an assemble test instead. At least that way we get some
66 # test-for-ICE and code-sanity coverage.
68 # The same problem applies to run tests. If a test requires runtime
69 # support for a particular feature, and if the current target does not
70 # provide that support, normal practice would be to skip the test.
71 # But in this case it seems better to downgrade it to a link test instead.
72 # (We might then have to downgrade it to an assembler test according to
73 # the constraints just mentioned.)
75 # The local dg-options therefore checks whether the new options are
76 # link-compatiable with the user's options. If not, it automatically
77 # downgrades link tests to assemble tests. It does the same for run
78 # tests, but in addition, it downgrades run tests to link tests if the
79 # target does not provide runtime support for a required feature or ASE.
82 # Another problem is that many of the options we want to test require
83 # certain other features. For example, -mips3d requires both 64-bit
84 # FPRs and a MIPS32 or MIPS64 target; -mfix-r10000 requires branch-
85 # likely instructions; and so on. We could handle this by specifying
86 # a set of options that are guaranteed to give us what we want, such as:
88 # dg-options "-mips3d -mpaired-single -mhard-float -mgp64 -mfp64 -mabi=n32 -march=mips64 -mips64"
90 # With the new dg-options semantics, this would override any troublesome
91 # user options like -mips3, -march=vr4100, -mfp32, -mgp32, -msoft-float,
92 # -mno-paired-single and so on. But there are three major problems with
95 # - It is easy to forget options.
97 # - If a new option is added, all tests that are incompatible with that
98 # option must be updated.
100 # - We want to be able to test MIPS-3D with things like -march=mips32,
101 # -march=mips64r2, -march=sb1, and so on.
103 # The local version of dg-options therefore works out the requirements
104 # of each test option. As with the test options themselves, the local
105 # dg-options overrides any user options that incompatible with these
106 # requirements, but it keeps the other user options the same.
108 # For example, if the user passes -mips3, a MIPS-3D test will choose
109 # a different architecture like -mips64 instead. But if the user
110 # passes -march=sb1, MIPS-3D tests will be run with that option.
113 # Sometimes it is useful to say "I want an environment that is compatible
114 # with option X, but I don't want to pass option X itself". The main example
115 # of this is -mips16: we want to be able to test __attribute__((mips16))
116 # without requiring the test itself to be compiled as -mips16. The local
117 # version of dg-options lets you do this by putting X in parentheses.
120 # { dg-options "(-mips16)" }
122 # selects a MIPS16-compatible target without passing -mips16 itself.
124 # It is also useful to say "any architecture within this ISA range is fine".
125 # This can be done using special pseudo-options of the form:
127 # PROP=VALUE PROP<=VALUE PROP>=VALUE
132 # the value of the __mips macro.
135 # the value of the __mips_isa_rev macro, or 0 if it isn't defined.
137 # For example, "isa_rev>=1" selects a MIPS32 or MIPS64 processor,
138 # "isa=4" selects a MIPS IV processor, and so on.
140 # There are also the following special pseudo-options:
143 # select a Loongson processor
145 # addressing=absolute
146 # force absolute addresses to be used
149 # forbid processors that match the given regexp; choose a
150 # generic ISA instead.
155 # (1) Try to avoid { target ... } requirements wherever possible.
156 # Specify the requirements as dg-options instead.
158 # (2) Don't worry about the consequences of (1) for link and run tests.
159 # If the test uses { dg-do link } or { dg-do run }, and its
160 # dg-options are incompatible with the current target, the
161 # testsuite will downgrade them where necessary.
163 # (3) Try to use the bare minimum of options and leave dg-options
164 # to work out the dependencies. For example, if you want
165 # a MIPS-3D test, you should generally just specify -mips3d.
166 # Don't specify an architecture option like -mips64 unless
167 # the test really doesn't work with -mips32r2, -mips64r2,
170 # (4) If you want something compatible with a particular option,
171 # but don't want to pass the option itself, wrap that option
172 # in parentheses. In particular, pass '(-mips16)' if you
173 # want to use "mips16" attributes.
175 # (5) When testing a feature of a generic ISA (as opposed to a
176 # processor-specific extension), try to use the "isa" and
177 # "isa_rev" pseudo-options instead of specific architecture
178 # options. For example, if the feature is present on revision 2
179 # processors and above, try to use "isa_rev>=2" instead of
180 # "-mips32r2" or "-mips64r2".
182 # (6) If you need to disable processor-specific extensions use
183 # forbid_cpu=REGEXP instead of forcing a generic ISA.
188 # Option group or just group:
189 # See comment before mips_option_groups.
192 # The options specified in dg-options.
195 # The options that were either passed to runtest as "multilib" options
196 # (e.g. -mips4 in --target_board=mips-sim-idt/-mips4) or specified as
197 # test options. Note that options in parenthesis (i.e. (-mips16)) are
198 # not explicit and can be omitted depending on the base options.
201 # Options that are on by default without being specified in dg-options,
202 # e.g. -march=mips64r2 for mipsisa64r2-elf or because they've been
203 # passed to runtest as "multilib" options.
206 # Many functions in this file work with option arrays. These are
207 # two-dimensional Tcl arrays where the first dimension can have three
208 # values: option, explicit_p or test_option_p. The second dimension is
209 # the name of the option group. "option" contains the name of the
210 # option that is in effect from this group. If no option is active it
211 # contains the empty string. The flags "explicit_p" and "test_option_p"
212 # are set for explicit and test options.
214 # Exit immediately if this isn't a MIPS target.
215 if ![istarget mips*-*-*] {
219 # Load support procs.
222 # A list of GROUP REGEXP pairs. Each GROUP represents a logical group of
223 # options from which only one option should be chosen. REGEXP matches all
224 # the options in that group; it is implicitly wrapped in "^(...)$".
225 set mips_option_groups {
227 addressing "addressing=.*"
228 arch "-mips([1-5]|32.*|64.*)|-march=.*|isa(|_rev)(=|<=|>=).*"
231 endianness "-E(L|B)|-me(l|b)"
232 float "-m(hard|soft)-float"
233 forbid_cpu "forbid_cpu=.*"
237 mips16 "-mips16|-mno-mips16|-mflip-mips16"
238 mips3d "-mips3d|-mno-mips3d"
239 optimization "-O(|[0-3s])"
240 pic "-f(no-|)(pic|PIC)"
242 small-data "-G[0-9]+"
246 # Add -mfoo/-mno-foo options to mips_option_groups.
269 lappend mips_option_groups $option "-m(no-|)$option"
272 # Add -mfoo= options to mips_option_groups.
279 lappend mips_option_groups $option "-m$option=.*"
282 # Add -ffoo/-fno-foo options to mips_option_groups.
289 lax-vector-conversions
293 lappend mips_option_groups $option "-f(no-|)$option"
296 # A list of option groups that have an impact on the ABI.
297 set mips_abi_groups {
311 # mips_option_tests(OPTION) is some assembly code that will run to completion
312 # on a target that supports OPTION.
313 set mips_option_tests(-mips16) {
325 set mips_option_tests(-mpaired-single) {
331 set mips_option_tests(-mips3d) {
341 madd.s $f4,$f2,$f2,$f4
343 set mips_option_tests(-mdsp) {
348 set mips_option_tests(-mdspr2) {
354 # Canonicalize command-line option OPTION.
355 proc mips_canonicalize_option { option } {
356 regsub {^-mips([1-5]|32*|64*)$} $option {-march=mips\1} option
358 regsub {^-mel$} $option {-EL} option
359 regsub {^-meb$} $option {-EB} option
361 regsub {^-O$} $option {-O1} option
363 # MIPS doesn't use -fpic and -fPIC to distinguish between code models.
364 regsub {^-f(no-|)PIC} $option {-f\1pic} option
369 # Return true if OPTION1 and OPTION2 represent the same command-line option.
370 proc mips_same_option_p { option1 option2 } {
371 return [string equal \
372 [mips_canonicalize_option $option1] \
373 [mips_canonicalize_option $option2]]
376 # Preprocess CODE using target_compile options OPTIONS. Return the
378 proc mips_preprocess { options code } {
382 set f [open $src "w"]
385 set output [${tool}_target_compile $src "" preprocess $options]
391 # Set the target board's command-line options to NEW_OPTIONS, storing the
392 # old values in UPVAR.
393 proc mips_push_test_options { upvar new_options } {
398 set var(name) board_info([target_info name],multilib_flags)
399 if { [info exists $var(name)] } {
400 set var(old_options) [set $var(name)]
401 set $var(name) [join $new_options " "]
405 # Undo the effects of [mips_push_test_options UPVAR ...]
406 proc mips_pop_test_options { upvar } {
410 if { [info exists var(old_options)] } {
411 set $var(name) $var(old_options)
415 # Return property PROP for architecture option ARCH (which belongs to
416 # the "arch" group in mips_option_groups). See the comment at the
417 # top of the file for the valid property names.
419 # Cache the results in mips_arch_info (which can be reused between test
421 proc mips_arch_info { arch prop } {
422 global mips_arch_info
425 set arch [mips_canonicalize_option $arch]
426 if { ![info exists mips_arch_info($arch,$prop)] } {
427 mips_push_test_options saved_options {}
428 set output [mips_preprocess [list "additional_flags=$arch -mabi=32"] {
430 #ifdef __mips_isa_rev
431 int isa_rev = __mips_isa_rev;
436 foreach lhs { isa isa_rev } {
437 regsub ".*$lhs = (\[^;\]*).*" $output {\1} rhs
438 verbose -log "Architecture $arch has $lhs $rhs"
439 set mips_arch_info($arch,$lhs) $rhs
441 mips_pop_test_options saved_options
443 return $mips_arch_info($arch,$prop)
446 # Return the option group associated with OPTION, or "" if none.
447 proc mips_option_maybe_group { option } {
448 global mips_option_groups
450 foreach { group regexp } $mips_option_groups {
451 if { [regexp -- "^($regexp)\$" $option] } {
458 # Return the option group associated with OPTION. Raise an error if
460 proc mips_option_group { option } {
461 set group [mips_option_maybe_group $option]
462 if { [string equal $group ""] } {
463 error "Unrecognised option: $option"
468 # Return the option for option group GROUP, or "" if no option in that
469 # group has been chosen. UPSTATUS describes the option status.
470 proc mips_option { upstatus group } {
471 upvar $upstatus status
473 return $status(option,$group)
476 # If the base options for this test run include an option in group GROUP,
477 # return that option, otherwise return "".
478 proc mips_original_option { group } {
479 global mips_base_options
481 return [mips_option mips_base_options $group]
484 # Return true if the test described by UPSTATUS requires a specific
485 # option in group GROUP. UPSTATUS describes the option status.
486 proc mips_test_option_p { upstatus group } {
487 upvar $upstatus status
489 return $status(test_option_p,$group)
492 # If the test described by UPSTATUS requires a particular option in group
493 # GROUP, return that option, otherwise return "".
494 proc mips_test_option { upstatus group } {
495 upvar $upstatus status
497 if { [mips_test_option_p status $group] } {
498 return [mips_option status $group]
504 # Return true if the options described by UPSTATUS include OPTION.
505 proc mips_have_option_p { upstatus option } {
506 upvar $upstatus status
508 return [mips_same_option_p \
509 [mips_option status [mips_option_group $option]] \
513 # Return true if the options described by UPSTATUS require MIPS16 support.
514 proc mips_using_mips16_p { upstatus } {
515 upvar $upstatus status
517 return [expr { [mips_have_option_p status "-mips16"]
518 || [mips_have_option_p status "-mflip-mips16"] }]
521 # Return true if the test described by UPSTATUS requires option OPTION.
522 proc mips_have_test_option_p { upstatus option } {
523 upvar $upstatus status
525 set group [mips_option_group $option]
526 return [mips_same_option_p [mips_test_option status $group] $option]
529 # If the test described by UPSTATUS does not specify an option in
530 # OPTION's group, act as though it had specified OPTION.
532 # The first optional argument indicates whether the option should be
533 # treated as though it were wrapped in parentheses; see the comment at
534 # the top of the file for details about this convention. The default is 0.
535 proc mips_make_test_option { upstatus option args } {
536 upvar $upstatus status
538 set group [mips_option_group $option]
539 if { ![mips_test_option_p status $group] } {
540 set status(option,$group) $option
541 set status(test_option_p,$group) 1
542 if { [llength $args] == 0 || ![lindex $args 0] } {
543 set status(explicit_p,$group) 1
548 # If the test described by UPSTATUS requires option FROM, assume that
549 # it implicitly requires option TO.
550 proc mips_option_dependency { upstatus from to } {
551 upvar $upstatus status
553 if { [mips_have_test_option_p status $from] } {
554 mips_make_test_option status $to
558 # Return true if the given arch-group option specifies a 32-bit ISA.
559 proc mips_32bit_arch_p { option } {
560 set isa [mips_arch_info $option isa]
561 return [expr { $isa < 3 || $isa == 32 }]
564 # Return true if the given arch-group option specifies a 64-bit ISA.
565 proc mips_64bit_arch_p { option } {
566 return [expr { ![mips_32bit_arch_p $option] }]
569 # Return true if the given abi-group option implicitly requires -mgp32.
570 proc mips_32bit_abi_p { option } {
571 switch -glob -- $option {
579 # Return true if the given abi-group option implicitly requires -mgp64.
580 proc mips_64bit_abi_p { option } {
581 switch -glob -- $option {
591 # Check whether the current target supports all the options that the
592 # current test requires. Return "" if so, otherwise return one of
593 # the incompatible options. UPSTATUS describes the option status.
594 proc mips_first_unsupported_option { upstatus } {
595 global mips_option_tests
596 upvar $upstatus status
598 foreach { option code } [array get mips_option_tests] {
599 if { [mips_have_test_option_p status $option] } {
600 regsub -all "\n" $code "\\n\\\n" asm
601 # Use check_runtime from target-supports.exp, which caches
603 if { ![check_runtime mips_option_$option [subst {
604 __attribute__((nomips16)) int
620 # Initialize this testsuite for a new test variant.
621 proc mips-dg-init {} {
622 # Invariant information.
623 global mips_option_groups
625 # Internally-generated information about this run.
626 global mips_base_options
627 global mips_extra_options
629 # Override dg-options with our mips-dg-options routine.
630 rename dg-options mips-old-dg-options
631 rename mips-dg-options dg-options
633 # Start with a fresh option status.
634 array unset mips_base_options
635 foreach { group regexp } $mips_option_groups {
636 set mips_base_options(option,$group) ""
637 set mips_base_options(explicit_p,$group) 0
638 set mips_base_options(test_option_p,$group) 0
641 # Use preprocessor macros to work out as many implicit options as we can.
642 set output [mips_preprocess "" {
643 const char *options[] = {
644 #if !defined _MIPS_SIM
646 #elif _MIPS_SIM==_ABIO32
648 #elif _MIPS_SIM==_ABIO64
650 #elif _MIPS_SIM==_ABIN32
656 "-march=" _MIPS_ARCH,
664 #ifdef __mips_hard_float
682 #if _MIPS_SZLONG == 64
700 #ifdef __mips_paired_single_float
703 "-mno-paired-single",
712 #if __mips_dsp_rev >= 2
718 #if __mips_dsp_rev >= 1
725 "addressing=absolute",
728 #ifdef __mips_smartmips
737 foreach line [split $output "\r\n"] {
738 # Poor man's string concatenation.
739 regsub -all {" "} $line "" line
740 if { [regexp {"(.*)",} $line dummy option] } {
741 set group [mips_option_group $option]
742 set mips_base_options(option,$group) $option
746 # Process the target's multilib options, saving any unrecognized
747 # ones in mips_extra_options.
748 set mips_extra_options {}
749 foreach option [split [board_info target multilib_flags]] {
750 set group [mips_option_maybe_group $option]
751 if { ![string equal $group ""] } {
752 set mips_base_options(option,$group) $option
753 set mips_base_options(explicit_p,$group) 1
755 lappend mips_extra_options $option
760 # Finish a test run started by mips-dg-init.
761 proc mips-dg-finish {} {
762 rename dg-options mips-dg-options
763 rename mips-old-dg-options dg-options
766 # Override dg-options so that we can do some MIPS-specific processing.
767 # All options used in this testsuite must appear in mips_option_groups.
769 # Test options override multilib options. Certain test options can
770 # also imply other test options, which also override multilib options.
771 # These dependencies are ordered as follows:
775 # -mips16/-mflip-mips16 -mno-mips16
777 # -mips3d -mno-mips3d
779 # -mpaired-single -mno-paired-single
783 # -mhard-float -msoft-float
787 # -mrelax-pic-calls -mno-relax-pic-calls
791 # -mshared -mno-shared
795 # addressing=unknown addressing=absolute
797 # -mabicalls -mno-abicalls
801 # <other value> -mr10k-cache-barrier=none
803 # -mfix-r10000 -mno-fix-r10000
805 # -mbranch-likely -mno-branch-likely
807 # -msmartmips -mno-smartmips
811 # -mexplicit-relocs -mno-explicit-relocs
813 # +-- gp, abi & arch ---------+
815 # For these purposes, the "gp", "abi" & "arch" option groups are treated
817 proc mips-dg-options { args } {
819 upvar dg-extra-tool-flags extra_tool_flags
820 upvar dg-do-what do_what
822 # Invariant information.
823 global mips_option_groups
824 global mips_abi_groups
826 # Information about this run.
827 global mips_base_options
829 # Start out with the default option state.
830 array set options [array get mips_base_options]
832 # Record the options that this test explicitly needs.
833 foreach option [lindex $args 1] {
834 set all_but_p [regexp {^\((.*)\)$} $option dummy option]
835 set group [mips_option_group $option]
836 if { [mips_test_option_p options $group] } {
837 set old [mips_option options $group]
838 error "Inconsistent $group option: $old vs. $option"
840 mips_make_test_option options $option $all_but_p
844 # Handle dependencies between options on the left of the
845 # dependency diagram.
846 mips_option_dependency options "-mips3d" "-mpaired-single"
847 mips_option_dependency options "-mpaired-single" "-mfp64"
848 mips_option_dependency options "-mfp64" "-mhard-float"
849 mips_option_dependency options "-mrelax-pic-calls" "-mno-plt"
850 mips_option_dependency options "-mrelax-pic-calls" "-mabicalls"
851 mips_option_dependency options "-mrelax-pic-calls" "-mexplicit-relocs"
852 mips_option_dependency options "-fpic" "-mshared"
853 mips_option_dependency options "-mshared" "-mno-plt"
854 mips_option_dependency options "-mshared" "-mabicalls"
855 mips_option_dependency options "-mno-plt" "addressing=unknown"
856 mips_option_dependency options "-mabicalls" "-G0"
857 mips_option_dependency options "-mno-gpopt" "-mexplicit-relocs"
859 # Work out information about the current ABI.
860 set abi_test_option_p [mips_test_option_p options abi]
861 set abi [mips_option options abi]
862 set eabi_p [mips_same_option_p $abi "-mabi=eabi"]
864 # If the test forces a particular ABI, set the register size
866 if { $abi_test_option_p } {
867 if { [mips_32bit_abi_p $abi] } {
868 mips_make_test_option options "-mgp32"
869 } elseif { [mips_64bit_abi_p $abi] } {
870 mips_make_test_option options "-mgp64"
874 # See whether forbid_cpu forces us to choose a new architecture.
875 set arch [mips_option mips_base_options arch]
876 set force_generic_isa_p [expr {
877 [regexp "forbid_cpu=(.*)" [mips_option options forbid_cpu] dummy spec]
878 && [regexp -- "^-march=$spec\$" $arch]
881 # Interpret the special "isa" and "isa_rev" options. If we have
882 # a choice of a 32-bit or a 64-bit architecture, prefer to keep
883 # the -mgp setting the same.
884 set spec [mips_option options arch]
885 if { [regexp {^[^-]} $spec] } {
886 if { [string equal $spec "isa=loongson"] } {
887 if { ![regexp {^-march=loongson} $arch] } {
888 set arch "-march=loongson2f"
891 if { ![regexp {^(isa(?:|_rev))(=|<=|>=)([0-9]*)$} \
892 $spec dummy prop relation value nocpus] } {
893 error "Unrecognized isa specification: $spec"
895 set current [mips_arch_info $arch $prop]
896 if { $force_generic_isa_p
897 || ($current < $value && ![string equal $relation "<="])
898 || ($current > $value && ![string equal $relation ">="])
899 || ([mips_have_test_option_p options "-mgp64"]
900 && [mips_32bit_arch_p $arch]) } {
901 # The current setting is out of range; it cannot
902 # possibly be used. Find a replacement that can.
903 if { [string equal $prop "isa"] } {
904 set arch "-mips$value"
905 } elseif { $value == 0 } {
908 if { [mips_have_option_p options "-mgp32"] } {
914 append arch "r$value"
919 set options(option,arch) $arch
922 # Work out information about the current architecture.
923 set arch_test_option_p [mips_test_option_p options arch]
924 set arch [mips_option options arch]
925 set isa [mips_arch_info $arch isa]
926 set isa_rev [mips_arch_info $arch isa_rev]
928 # If the test forces a 32-bit architecture, force -mgp32.
929 # Force the current -mgp setting otherwise; if we don't,
930 # some configurations would make a 64-bit architecture
932 if { $arch_test_option_p } {
933 if { [mips_32bit_arch_p $arch] } {
934 mips_make_test_option options "-mgp32"
936 mips_make_test_option options [mips_option options gp]
940 # We've now fixed the GP register size. Make it easily available.
941 set gp_size [expr { [mips_have_option_p options "-mgp32"] ? 32 : 64 }]
943 # Handle dependencies between the pre-arch options and the arch option.
944 # This should mirror the arch and post-arch code below.
945 if { !$arch_test_option_p } {
946 # We need a revision 2 or better ISA for:
948 # - the combination of -mgp32 -mfp64
951 && (($gp_size == 32 && [mips_have_test_option_p options "-mfp64"])
952 || [mips_have_test_option_p options "-mdsp"]
953 || [mips_have_test_option_p options "-mdspr2"]) } {
954 if { $gp_size == 32 } {
955 mips_make_test_option options "-mips32r2"
957 mips_make_test_option options "-mips64r2"
959 # We need a MIPS32 or MIPS64 ISA for:
961 # - paired-single instructions(*)
963 # (*) Note that we don't support MIPS V at the moment.
964 } elseif { $isa_rev < 1
965 && [mips_have_test_option_p options "-mpaired-single"] } {
966 if { $gp_size == 32 } {
967 mips_make_test_option options "-mips32"
969 mips_make_test_option options "-mips64"
971 # We need MIPS III or higher for:
973 # - the "cache" instruction
975 && ([mips_have_test_option_p options \
976 "-mr10k-cache-barrier=load-store"]
977 || [mips_have_test_option_p options \
978 "-mr10k-cache-barrier=store"]) } {
979 mips_make_test_option options "-mips3"
980 # We need MIPS II or higher for:
982 # - branch-likely instructions(*)
984 # (*) needed by both -mbranch-likely and -mfix-r10000
986 && ([mips_have_test_option_p options "-mbranch-likely"]
987 || [mips_have_test_option_p options "-mfix-r10000"]) } {
988 mips_make_test_option options "-mips2"
989 # Check whether we need to switch from a 32-bit processor to the
990 # "nearest" 64-bit processor.
991 } elseif { $gp_size == 64 && [mips_32bit_arch_p $arch] } {
992 if { $isa_rev == 0 } {
993 mips_make_test_option options "-mips3"
994 } elseif { $isa_rev == 1 } {
995 mips_make_test_option options "-mips64"
997 mips_make_test_option options "-mips64r$isa_rev"
999 # Otherwise, if the current choice of architecture is unacceptable,
1000 # choose the equivalent generic architecture.
1001 } elseif { $force_generic_isa_p } {
1002 set arch "-mips[mips_arch_info $arch isa]"
1003 if { $isa_rev > 1 } {
1004 append arch "r$isa_rev"
1006 mips_make_test_option options $arch
1013 # Set an appropriate ABI, handling dependencies between the pre-abi
1014 # options and the abi options. This should mirror the abi and post-abi
1016 if { !$abi_test_option_p } {
1018 && ([mips_have_option_p options "-mabicalls"]
1020 && [mips_have_option_p options "-mfp64"]))) } {
1021 # EABI doesn't support -mabicalls.
1022 # EABI doesn't support the combination -mgp32 -mfp64.
1024 } elseif { [mips_using_mips16_p options]
1025 && ![mips_same_option_p $abi "-mabi=32"]
1026 && ![mips_same_option_p $abi "-mabi=o64"]
1027 && (![mips_have_option_p options "addressing=absolute"]
1028 || [mips_have_option_p options "-mhard-float"]) } {
1029 # -mips16 -mhard-float requires o32 or o64.
1030 # -mips16 PIC requires o32 or o64.
1035 if { $gp_size == 32 } {
1036 if { $force_abi || [mips_64bit_abi_p $abi] } {
1037 mips_make_test_option options "-mabi=32"
1040 if { $force_abi || [mips_32bit_abi_p $abi] } {
1041 # All configurations should have an assembler that
1042 # supports o64, since it requires the same BFD target
1043 # vector as o32. In contrast, many assembler
1044 # configurations do not have n32 or n64 support.
1045 mips_make_test_option options "-mabi=o64"
1052 # Handle dependencies between the abi options and the post-abi options.
1053 # This should mirror the abi and pre-abi code above.
1054 if { $abi_test_option_p } {
1056 mips_make_test_option options "-mno-abicalls"
1057 if { $gp_size == 32 } {
1058 mips_make_test_option options "-mfp32"
1061 if { [mips_using_mips16_p options]
1062 && ![mips_same_option_p $abi "-mabi=32"]
1063 && ![mips_same_option_p $abi "-mabi=o64"]
1064 && (![mips_have_option_p options "addressing=absolute"]
1065 || [mips_have_option_p options "-mhard-float"]) } {
1066 if { [mips_test_option_p options mips16] } {
1067 mips_make_test_option options "addressing=absolute"
1068 mips_make_test_option options "-msoft-float"
1070 mips_make_test_option options "-mno-mips16"
1077 # Handle dependencies between the arch option and the post-arch options.
1078 # This should mirror the arch and pre-arch code above.
1079 if { $arch_test_option_p } {
1081 mips_make_test_option options "-mno-branch-likely"
1082 mips_make_test_option options "-mno-fix-r10000"
1085 mips_make_test_option options "-mr10k-cache-barrier=none"
1087 if { $isa_rev < 1 } {
1088 mips_make_test_option options "-mno-paired-single"
1090 if { $isa_rev < 2 } {
1091 if { $gp_size == 32 } {
1092 mips_make_test_option options "-mfp32"
1094 mips_make_test_option options "-mno-dsp"
1095 mips_make_test_option options "-mno-dspr2"
1102 # Handle dependencies between options on the right of the diagram.
1103 mips_option_dependency options "-mno-explicit-relocs" "-mgpopt"
1104 switch -- [mips_test_option options small-data] {
1108 mips_make_test_option options "-mno-abicalls"
1111 if { [mips_have_option_p options "-mabicalls"] } {
1112 mips_option_dependency options "addressing=absolute" "-mplt"
1114 mips_option_dependency options "-mplt" "-msym32"
1115 mips_option_dependency options "-mplt" "-mno-shared"
1116 mips_option_dependency options "-mno-shared" "-fno-pic"
1117 mips_option_dependency options "-mfp32" "-mno-paired-single"
1118 mips_option_dependency options "-msoft-float" "-mno-paired-single"
1119 mips_option_dependency options "-mno-paired-single" "-mno-mips3d"
1121 # If the test requires an unsupported option, change run tests
1124 switch -- [lindex $do_what 0] {
1126 set option [mips_first_unsupported_option options]
1127 if { ![string equal $option ""] } {
1128 set do_what [lreplace $do_what 0 0 link]
1129 verbose -log "Downgraded to a 'link' test due to unsupported option '$option'"
1134 # If the test has overridden a option that changes the ABI,
1135 # downgrade a link or execution test to an assembler test.
1136 foreach group $mips_abi_groups {
1137 set old_option [mips_original_option $group]
1138 set new_option [mips_option options $group]
1139 if { ![mips_same_option_p $old_option $new_option] } {
1140 switch -- [lindex $do_what 0] {
1143 set do_what [lreplace $do_what 0 0 assemble]
1144 verbose -log "Downgraded to an 'assemble' test due to incompatible $group option ($old_option changed to $new_option)"
1151 # Add all options to the dg variable.
1152 set options(explicit_p,addressing) 0
1153 set options(explicit_p,forbid_cpu) 0
1154 foreach { group regexp } $mips_option_groups {
1155 if { $options(explicit_p,$group) } {
1156 append extra_tool_flags " " $options(option,$group)
1160 # If the test is MIPS16-compatible, provide a counterpart to the
1161 # NOMIPS16 convenience macro.
1162 if { [mips_have_test_option_p options "-mips16"] } {
1163 append extra_tool_flags " -DMIPS16=__attribute__((mips16))"
1166 # Use our version of gcc-dg-test for this test.
1167 if { ![string equal [info procs "mips-gcc-dg-test"] ""] } {
1168 rename gcc-dg-test mips-old-gcc-dg-test
1169 rename mips-gcc-dg-test gcc-dg-test
1173 # A version of gcc-dg-test that is used by dg-options tests.
1174 proc mips-gcc-dg-test { prog do_what extra_tool_flags } {
1176 global mips_extra_options
1178 # Override the user's chosen test options with the combined test/user
1180 mips_push_test_options saved_options $mips_extra_options
1181 set result [gcc-dg-test-1 gcc_target_compile $prog \
1182 $do_what $extra_tool_flags]
1183 mips_pop_test_options saved_options
1185 # Restore the usual gcc-dg-test.
1186 rename gcc-dg-test mips-gcc-dg-test
1187 rename mips-old-gcc-dg-test gcc-dg-test
1194 # MIPS16 is defined by "-mips16" or "(-mips16)" in dg-options.
1195 dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/*.c]] "" \
1196 "-DNOMIPS16=__attribute__((nomips16))"