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 # Return true if the given abi-group option implicitly requires -mlong32.
592 # o64 requires this for -mabicalls, but not otherwise; pick the conservative
593 # case for simplicity.
594 proc mips_long32_abi_p { option } {
595 switch -glob -- $option {
605 # Return true if the given abi-group option implicitly requires -mlong64.
606 proc mips_long64_abi_p { option } {
607 switch -glob -- $option {
615 # Check whether the current target supports all the options that the
616 # current test requires. Return "" if so, otherwise return one of
617 # the incompatible options. UPSTATUS describes the option status.
618 proc mips_first_unsupported_option { upstatus } {
619 global mips_option_tests
620 upvar $upstatus status
622 foreach { option code } [array get mips_option_tests] {
623 if { [mips_have_test_option_p status $option] } {
624 regsub -all "\n" $code "\\n\\\n" asm
625 # Use check_runtime from target-supports.exp, which caches
627 if { ![check_runtime mips_option_$option [subst {
628 __attribute__((nomips16)) int
644 # Initialize this testsuite for a new test variant.
645 proc mips-dg-init {} {
646 # Invariant information.
647 global mips_option_groups
649 # Internally-generated information about this run.
650 global mips_base_options
651 global mips_extra_options
653 # Override dg-options with our mips-dg-options routine.
654 rename dg-options mips-old-dg-options
655 rename mips-dg-options dg-options
657 # Start with a fresh option status.
658 array unset mips_base_options
659 foreach { group regexp } $mips_option_groups {
660 set mips_base_options(option,$group) ""
661 set mips_base_options(explicit_p,$group) 0
662 set mips_base_options(test_option_p,$group) 0
665 # Use preprocessor macros to work out as many implicit options as we can.
666 set output [mips_preprocess "" {
667 const char *options[] = {
668 #if !defined _MIPS_SIM
670 #elif _MIPS_SIM==_ABIO32
672 #elif _MIPS_SIM==_ABIO64
674 #elif _MIPS_SIM==_ABIN32
680 "-march=" _MIPS_ARCH,
688 #ifdef __mips_hard_float
706 #if _MIPS_SZLONG == 64
724 #ifdef __mips_paired_single_float
727 "-mno-paired-single",
736 #if __mips_dsp_rev >= 2
742 #if __mips_dsp_rev >= 1
749 "addressing=absolute",
752 #ifdef __mips_smartmips
761 foreach line [split $output "\r\n"] {
762 # Poor man's string concatenation.
763 regsub -all {" "} $line "" line
764 if { [regexp {"(.*)",} $line dummy option] } {
765 set group [mips_option_group $option]
766 set mips_base_options(option,$group) $option
770 # Process the target's multilib options, saving any unrecognized
771 # ones in mips_extra_options.
772 set mips_extra_options {}
773 foreach option [split [board_info target multilib_flags]] {
774 set group [mips_option_maybe_group $option]
775 if { ![string equal $group ""] } {
776 set mips_base_options(option,$group) $option
777 set mips_base_options(explicit_p,$group) 1
779 lappend mips_extra_options $option
784 # Finish a test run started by mips-dg-init.
785 proc mips-dg-finish {} {
786 rename dg-options mips-dg-options
787 rename mips-old-dg-options dg-options
790 # Override dg-options so that we can do some MIPS-specific processing.
791 # All options used in this testsuite must appear in mips_option_groups.
793 # Test options override multilib options. Certain test options can
794 # also imply other test options, which also override multilib options.
795 # These dependencies are ordered as follows:
799 # -mips16/-mflip-mips16 -mno-mips16
801 # -mips3d -mno-mips3d
803 # -mpaired-single -mno-paired-single
807 # -mhard-float -msoft-float
811 # -mrelax-pic-calls -mno-relax-pic-calls
815 # -mshared -mno-shared
819 # addressing=unknown addressing=absolute
821 # -mabicalls -mno-abicalls
825 # <other value> -mr10k-cache-barrier=none
827 # -mfix-r10000 -mno-fix-r10000
829 # -mbranch-likely -mno-branch-likely
831 # -msmartmips -mno-smartmips
835 # -mexplicit-relocs -mno-explicit-relocs
841 # +-- gp, abi & arch ---------+
843 # For these purposes, the "gp", "abi" & "arch" option groups are treated
845 proc mips-dg-options { args } {
847 upvar dg-extra-tool-flags extra_tool_flags
848 upvar dg-do-what do_what
850 # Invariant information.
851 global mips_option_groups
852 global mips_abi_groups
854 # Information about this run.
855 global mips_base_options
857 # Start out with the default option state.
858 array set options [array get mips_base_options]
860 # Record the options that this test explicitly needs.
861 foreach option [lindex $args 1] {
862 set all_but_p [regexp {^\((.*)\)$} $option dummy option]
863 set group [mips_option_group $option]
864 if { [mips_test_option_p options $group] } {
865 set old [mips_option options $group]
866 error "Inconsistent $group option: $old vs. $option"
868 mips_make_test_option options $option $all_but_p
872 # Handle dependencies between options on the left of the
873 # dependency diagram.
874 mips_option_dependency options "-mips3d" "-mpaired-single"
875 mips_option_dependency options "-mpaired-single" "-mfp64"
876 mips_option_dependency options "-mfp64" "-mhard-float"
877 mips_option_dependency options "-mrelax-pic-calls" "-mno-plt"
878 mips_option_dependency options "-mrelax-pic-calls" "-mabicalls"
879 mips_option_dependency options "-mrelax-pic-calls" "-mexplicit-relocs"
880 mips_option_dependency options "-fpic" "-mshared"
881 mips_option_dependency options "-mshared" "-mno-plt"
882 mips_option_dependency options "-mshared" "-mabicalls"
883 mips_option_dependency options "-mno-plt" "addressing=unknown"
884 mips_option_dependency options "-mabicalls" "-G0"
885 mips_option_dependency options "-mno-gpopt" "-mexplicit-relocs"
887 # Work out information about the current ABI.
888 set abi_test_option_p [mips_test_option_p options abi]
889 set abi [mips_option options abi]
890 set eabi_p [mips_same_option_p $abi "-mabi=eabi"]
892 # If the test forces a particular ABI, set the register size
894 if { $abi_test_option_p } {
895 if { [mips_32bit_abi_p $abi] } {
896 mips_make_test_option options "-mgp32"
897 } elseif { [mips_64bit_abi_p $abi] } {
898 mips_make_test_option options "-mgp64"
902 # See whether forbid_cpu forces us to choose a new architecture.
903 set arch [mips_option mips_base_options arch]
904 set force_generic_isa_p [expr {
905 [regexp "forbid_cpu=(.*)" [mips_option options forbid_cpu] dummy spec]
906 && [regexp -- "^-march=$spec\$" $arch]
909 # Interpret the special "isa" and "isa_rev" options. If we have
910 # a choice of a 32-bit or a 64-bit architecture, prefer to keep
911 # the -mgp setting the same.
912 set spec [mips_option options arch]
913 if { [regexp {^[^-]} $spec] } {
914 if { [string equal $spec "isa=loongson"] } {
915 if { ![regexp {^-march=loongson} $arch] } {
916 set arch "-march=loongson2f"
919 if { ![regexp {^(isa(?:|_rev))(=|<=|>=)([0-9]*)$} \
920 $spec dummy prop relation value nocpus] } {
921 error "Unrecognized isa specification: $spec"
923 set current [mips_arch_info $arch $prop]
924 if { $force_generic_isa_p
925 || ($current < $value && ![string equal $relation "<="])
926 || ($current > $value && ![string equal $relation ">="])
927 || ([mips_have_test_option_p options "-mgp64"]
928 && [mips_32bit_arch_p $arch]) } {
929 # The current setting is out of range; it cannot
930 # possibly be used. Find a replacement that can.
931 if { [string equal $prop "isa"] } {
932 set arch "-mips$value"
933 } elseif { $value == 0 } {
936 if { [mips_have_option_p options "-mgp32"] } {
942 append arch "r$value"
947 set options(option,arch) $arch
950 # Work out information about the current architecture.
951 set arch_test_option_p [mips_test_option_p options arch]
952 set arch [mips_option options arch]
953 set isa [mips_arch_info $arch isa]
954 set isa_rev [mips_arch_info $arch isa_rev]
956 # If the test forces a 32-bit architecture, force -mgp32.
957 # Force the current -mgp setting otherwise; if we don't,
958 # some configurations would make a 64-bit architecture
960 if { $arch_test_option_p } {
961 if { [mips_32bit_arch_p $arch] } {
962 mips_make_test_option options "-mgp32"
964 mips_make_test_option options [mips_option options gp]
968 # We've now fixed the GP register size. Make it easily available.
969 set gp_size [expr { [mips_have_option_p options "-mgp32"] ? 32 : 64 }]
971 # Handle dependencies between the pre-arch options and the arch option.
972 # This should mirror the arch and post-arch code below.
973 if { !$arch_test_option_p } {
974 # We need a revision 2 or better ISA for:
976 # - the combination of -mgp32 -mfp64
979 && (($gp_size == 32 && [mips_have_test_option_p options "-mfp64"])
980 || [mips_have_test_option_p options "-mdsp"]
981 || [mips_have_test_option_p options "-mdspr2"]) } {
982 if { $gp_size == 32 } {
983 mips_make_test_option options "-mips32r2"
985 mips_make_test_option options "-mips64r2"
987 # We need a MIPS32 or MIPS64 ISA for:
989 # - paired-single instructions(*)
991 # (*) Note that we don't support MIPS V at the moment.
992 } elseif { $isa_rev < 1
993 && [mips_have_test_option_p options "-mpaired-single"] } {
994 if { $gp_size == 32 } {
995 mips_make_test_option options "-mips32"
997 mips_make_test_option options "-mips64"
999 # We need MIPS III or higher for:
1001 # - the "cache" instruction
1003 && ([mips_have_test_option_p options \
1004 "-mr10k-cache-barrier=load-store"]
1005 || [mips_have_test_option_p options \
1006 "-mr10k-cache-barrier=store"]) } {
1007 mips_make_test_option options "-mips3"
1008 # We need MIPS II or higher for:
1010 # - branch-likely instructions(*)
1012 # (*) needed by both -mbranch-likely and -mfix-r10000
1014 && ([mips_have_test_option_p options "-mbranch-likely"]
1015 || [mips_have_test_option_p options "-mfix-r10000"]) } {
1016 mips_make_test_option options "-mips2"
1017 # Check whether we need to switch from a 32-bit processor to the
1018 # "nearest" 64-bit processor.
1019 } elseif { $gp_size == 64 && [mips_32bit_arch_p $arch] } {
1020 if { $isa_rev == 0 } {
1021 mips_make_test_option options "-mips3"
1022 } elseif { $isa_rev == 1 } {
1023 mips_make_test_option options "-mips64"
1025 mips_make_test_option options "-mips64r$isa_rev"
1027 # Otherwise, if the current choice of architecture is unacceptable,
1028 # choose the equivalent generic architecture.
1029 } elseif { $force_generic_isa_p } {
1030 set arch "-mips[mips_arch_info $arch isa]"
1031 if { $isa_rev > 1 } {
1032 append arch "r$isa_rev"
1034 mips_make_test_option options $arch
1041 # Set an appropriate ABI, handling dependencies between the pre-abi
1042 # options and the abi options. This should mirror the abi and post-abi
1044 if { !$abi_test_option_p } {
1046 && ([mips_have_option_p options "-mabicalls"]
1048 && [mips_have_option_p options "-mfp64"]))) } {
1049 # EABI doesn't support -mabicalls.
1050 # EABI doesn't support the combination -mgp32 -mfp64.
1052 } elseif { [mips_using_mips16_p options]
1053 && ![mips_same_option_p $abi "-mabi=32"]
1054 && ![mips_same_option_p $abi "-mabi=o64"]
1055 && (![mips_have_option_p options "addressing=absolute"]
1056 || [mips_have_option_p options "-mhard-float"]) } {
1057 # -mips16 -mhard-float requires o32 or o64.
1058 # -mips16 PIC requires o32 or o64.
1060 } elseif { [mips_have_test_option_p options "-mlong32"]
1061 && [mips_long64_abi_p $abi] } {
1063 } elseif { [mips_have_test_option_p options "-mlong64"]
1064 && [mips_long32_abi_p $abi] } {
1069 if { $gp_size == 32 } {
1070 if { $force_abi || [mips_64bit_abi_p $abi] } {
1071 if { [mips_have_test_option_p options "-mlong64"] } {
1072 mips_make_test_option options "-mabi=eabi"
1073 mips_make_test_option options "-mgp32"
1075 mips_make_test_option options "-mabi=32"
1079 if { $force_abi || [mips_32bit_abi_p $abi] } {
1080 if { [mips_have_test_option_p options "-mlong64"] } {
1081 mips_make_test_option options "-mabi=eabi"
1082 mips_make_test_option options "-mgp64"
1084 # All configurations should have an assembler that
1085 # supports o64, since it requires the same BFD target
1086 # vector as o32. In contrast, many assembler
1087 # configurations do not have n32 or n64 support.
1088 mips_make_test_option options "-mabi=o64"
1092 set abi_test_option_p [mips_test_option_p options abi]
1093 set abi [mips_option options abi]
1094 set eabi_p [mips_same_option_p $abi "-mabi=eabi"]
1097 # Handle dependencies between the abi options and the post-abi options.
1098 # This should mirror the abi and pre-abi code above.
1099 if { $abi_test_option_p } {
1101 mips_make_test_option options "-mno-abicalls"
1102 if { $gp_size == 32 } {
1103 mips_make_test_option options "-mfp32"
1106 if { [mips_using_mips16_p options]
1107 && ![mips_same_option_p $abi "-mabi=32"]
1108 && ![mips_same_option_p $abi "-mabi=o64"]
1109 && (![mips_have_option_p options "addressing=absolute"]
1110 || [mips_have_option_p options "-mhard-float"]) } {
1111 if { [mips_test_option_p options mips16] } {
1112 mips_make_test_option options "addressing=absolute"
1113 mips_make_test_option options "-msoft-float"
1115 mips_make_test_option options "-mno-mips16"
1118 if { [mips_long32_abi_p $abi] } {
1119 mips_make_test_option options "-mlong32"
1120 } elseif { [mips_long64_abi_p $abi] } {
1121 mips_make_test_option options "-mlong64"
1125 # Handle dependencies between the arch option and the post-arch options.
1126 # This should mirror the arch and pre-arch code above.
1127 if { $arch_test_option_p } {
1129 mips_make_test_option options "-mno-branch-likely"
1130 mips_make_test_option options "-mno-fix-r10000"
1133 mips_make_test_option options "-mr10k-cache-barrier=none"
1135 if { $isa_rev < 1 } {
1136 mips_make_test_option options "-mno-paired-single"
1138 if { $isa_rev < 2 } {
1139 if { $gp_size == 32 } {
1140 mips_make_test_option options "-mfp32"
1142 mips_make_test_option options "-mno-dsp"
1149 # Handle dependencies between options on the right of the diagram.
1150 mips_option_dependency options "-mno-dsp" "-mno-dspr2"
1151 mips_option_dependency options "-mno-explicit-relocs" "-mgpopt"
1152 switch -- [mips_test_option options small-data] {
1156 mips_make_test_option options "-mno-abicalls"
1159 if { [mips_have_option_p options "-mabicalls"] } {
1160 mips_option_dependency options "addressing=absolute" "-mplt"
1162 mips_option_dependency options "-mplt" "-msym32"
1163 mips_option_dependency options "-mplt" "-mno-shared"
1164 mips_option_dependency options "-mno-shared" "-fno-pic"
1165 mips_option_dependency options "-mfp32" "-mno-paired-single"
1166 mips_option_dependency options "-msoft-float" "-mno-paired-single"
1167 mips_option_dependency options "-mno-paired-single" "-mno-mips3d"
1169 # If the test requires an unsupported option, change run tests
1172 switch -- [lindex $do_what 0] {
1174 set option [mips_first_unsupported_option options]
1175 if { ![string equal $option ""] } {
1176 set do_what [lreplace $do_what 0 0 link]
1177 verbose -log "Downgraded to a 'link' test due to unsupported option '$option'"
1182 # If the test has overridden a option that changes the ABI,
1183 # downgrade a link or execution test to an assembler test.
1184 foreach group $mips_abi_groups {
1185 set old_option [mips_original_option $group]
1186 set new_option [mips_option options $group]
1187 if { ![mips_same_option_p $old_option $new_option] } {
1188 switch -- [lindex $do_what 0] {
1191 set do_what [lreplace $do_what 0 0 assemble]
1192 verbose -log "Downgraded to an 'assemble' test due to incompatible $group option ($old_option changed to $new_option)"
1199 # Add all options to the dg variable.
1200 set options(explicit_p,addressing) 0
1201 set options(explicit_p,forbid_cpu) 0
1202 foreach { group regexp } $mips_option_groups {
1203 if { $options(explicit_p,$group) } {
1204 append extra_tool_flags " " $options(option,$group)
1208 # If the test is MIPS16-compatible, provide a counterpart to the
1209 # NOMIPS16 convenience macro.
1210 if { [mips_have_test_option_p options "-mips16"] } {
1211 append extra_tool_flags " -DMIPS16=__attribute__((mips16))"
1214 # Use our version of gcc-dg-test for this test.
1215 if { ![string equal [info procs "mips-gcc-dg-test"] ""] } {
1216 rename gcc-dg-test mips-old-gcc-dg-test
1217 rename mips-gcc-dg-test gcc-dg-test
1221 # A version of gcc-dg-test that is used by dg-options tests.
1222 proc mips-gcc-dg-test { prog do_what extra_tool_flags } {
1224 global mips_extra_options
1226 # Override the user's chosen test options with the combined test/user
1228 mips_push_test_options saved_options $mips_extra_options
1229 set result [gcc-dg-test-1 gcc_target_compile $prog \
1230 $do_what $extra_tool_flags]
1231 mips_pop_test_options saved_options
1233 # Restore the usual gcc-dg-test.
1234 rename gcc-dg-test mips-gcc-dg-test
1235 rename mips-old-gcc-dg-test gcc-dg-test
1242 # MIPS16 is defined by "-mips16" or "(-mips16)" in dg-options.
1243 dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/*.c]] "" \
1244 "-DNOMIPS16=__attribute__((nomips16))"