1 # Copyright (C) 1999, 2001, 2003, 2004, 2005 Free Software Foundation, Inc.
3 # This program is free software; you can redistribute it and/or modify
4 # it under the terms of the GNU General Public License as published by
5 # the Free Software Foundation; either version 2 of the License, or
6 # (at your option) any later version.
8 # This program is distributed in the hope that it will be useful,
9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 # GNU General Public License for more details.
13 # You should have received a copy of the GNU General Public License
14 # along with this program; if not, write to the Free Software
15 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17 # Please email any bugs, comments, and/or additions to this file to:
18 # gcc-patches@gcc.gnu.org
20 # This file defines procs for determining features supported by the target.
22 # Try to compile some code and return the messages printed by the compiler.
24 # BASENAME is a basename to use for temporary files.
25 # TYPE is the type of compilation to perform (see target_compile).
26 # CONTENTS gives the contents of the input file.
27 # The rest is optional:
28 # OPTIONS: additional compiler options to use.
29 proc get_compiler_messages {basename type contents args} {
32 if { [llength $args] > 0 } {
33 set options "additional_flags=[lindex $args 0]"
38 set src ${basename}[pid].c
40 assembly { set output ${basename}[pid].s }
41 object { set output ${basename}[pid].o }
46 set lines [${tool}_target_compile $src $output $type "$options"]
48 remote_file build delete $output
53 proc current_target_name { } {
55 if [info exists target_info(target,name)] {
56 set answer $target_info(target,name)
63 ###############################
64 # proc check_weak_available { }
65 ###############################
67 # weak symbols are only supported in some configs/object formats
68 # this proc returns 1 if they're supported, 0 if they're not, or -1 if unsure
70 proc check_weak_available { } {
74 # All mips targets should support it
76 if { [ string first "mips" $target_cpu ] >= 0 } {
80 # All solaris2 targets should support it
82 if { [regexp ".*-solaris2.*" $target_triplet] } {
86 # DEC OSF/1/Digital UNIX/Tru64 UNIX supports it
88 if { [regexp "alpha.*osf.*" $target_triplet] } {
92 # Windows targets Cygwin and MingW32 support it
94 if { [regexp ".*mingw32|.*cygwin" $target_triplet] } {
98 # HP-UX 10.X doesn't support it
100 if { [regexp "hppa.*hpux10" $target_triplet] } {
104 # ELF and ECOFF support it. a.out does with gas/gld but may also with
105 # other linkers, so we should try it
107 set objformat [gcc_target_object_format]
115 unknown { return -1 }
120 ###############################
121 # proc check_visibility_available { what_kind }
122 ###############################
124 # The visibility attribute is only support in some object formats
125 # This proc returns 1 if it is supported, 0 if not.
126 # The argument is the kind of visibility, default/protected/hidden/internal.
128 proc check_visibility_available { what_kind } {
129 global visibility_available_saved
131 global target_triplet
133 # On NetWare, support makes no sense.
134 if { [string match "*-*-netware*" $target_triplet] } {
138 if [string match "" $what_kind] { set what_kind "hidden" }
140 if { [info exists visibility_available_saved] } {
141 verbose "Saved result is <$visibility_available_saved>" 1
142 if { [ lsearch -exact $visibility_available_saved $what_kind ] != -1 } {
144 } elseif { [ lsearch -exact $visibility_available_saved "!$what_kind" ] != -1 } {
149 set lines [get_compiler_messages visibility object "
150 void f() __attribute__((visibility(\"$what_kind\")));
153 if [string match "" $lines] then {
155 lappend visibility_available_saved $what_kind
158 lappend visibility_available_saved "!$what_kind"
163 ###############################
164 # proc check_alias_available { }
165 ###############################
167 # Determine if the target toolchain supports the alias attribute.
169 # Returns 2 if the target supports aliases. Returns 1 if the target
170 # only supports weak aliased. Returns 0 if the target does not
171 # support aliases at all. Returns -1 if support for aliases could not
174 proc check_alias_available { } {
175 global alias_available_saved
178 if [info exists alias_available_saved] {
179 verbose "check_alias_available returning saved $alias_available_saved" 2
183 verbose "check_alias_available compiling testfile $src" 2
184 set f [open $src "w"]
185 # Compile a small test program. The definition of "g" is
186 # necessary to keep the Solaris assembler from complaining
188 puts $f "#ifdef __cplusplus\nextern \"C\"\n#endif\n"
189 puts $f "void g() {} void f() __attribute__((alias(\"g\")));"
191 set lines [${tool}_target_compile $src $obj object ""]
193 remote_file build delete $obj
195 if [string match "" $lines] then {
196 # No error messages, everything is OK.
197 set alias_available_saved 2
199 if [regexp "alias definitions not supported" $lines] {
200 verbose "check_alias_available target does not support aliases" 2
202 set objformat [gcc_target_object_format]
204 if { $objformat == "elf" } {
205 verbose "check_alias_available but target uses ELF format, so it ought to" 2
206 set alias_available_saved -1
208 set alias_available_saved 0
211 if [regexp "only weak aliases are supported" $lines] {
212 verbose "check_alias_available target supports only weak aliases" 2
213 set alias_available_saved 1
215 set alias_available_saved -1
220 verbose "check_alias_available returning $alias_available_saved" 2
223 return $alias_available_saved
226 # Returns true if --gc-sections is supported on the target.
228 proc check_gc_sections_available { } {
229 global gc_sections_available_saved
232 if {![info exists gc_sections_available_saved]} {
233 # Some targets don't support gc-sections despite whatever's
234 # advertised by ld's options.
235 if { [istarget alpha*-*-*]
236 || [istarget ia64-*-*] } {
237 set gc_sections_available_saved 0
241 # Check if the ld used by gcc supports --gc-sections.
242 set gcc_spec [${tool}_target_compile "-dumpspecs" "" "none" ""]
243 regsub ".*\n\*linker:\[ \t\]*\n(\[^ \t\n\]*).*" "$gcc_spec" {\1} linker
244 set gcc_ld [lindex [${tool}_target_compile "-print-prog-name=$linker" "" "none" ""] 0]
245 set ld_output [remote_exec host "$gcc_ld" "--help"]
246 if { [ string first "--gc-sections" $ld_output ] >= 0 } {
247 set gc_sections_available_saved 1
249 set gc_sections_available_saved 0
252 return $gc_sections_available_saved
255 # Return true if profiling is supported on the target.
257 proc check_profiling_available { test_what } {
258 global profiling_available_saved
260 verbose "Profiling argument is <$test_what>" 1
262 # These conditions depend on the argument so examine them before
263 # looking at the cache variable.
265 # Support for -p on solaris2 relies on mcrt1.o which comes with the
266 # vendor compiler. We cannot reliably predict the directory where the
267 # vendor compiler (and thus mcrt1.o) is installed so we can't
268 # necessarily find mcrt1.o even if we have it.
269 if { [istarget *-*-solaris2*] && [lindex $test_what 1] == "-p" } {
273 # Support for -p on irix relies on libprof1.a which doesn't appear to
274 # exist on any irix6 system currently posting testsuite results.
275 # Support for -pg on irix relies on gcrt1.o which doesn't exist yet.
276 # See: http://gcc.gnu.org/ml/gcc/2002-10/msg00169.html
277 if { [istarget mips*-*-irix*]
278 && ([lindex $test_what 1] == "-p" || [lindex $test_what 1] == "-pg") } {
282 # Now examine the cache variable.
283 if {![info exists profiling_available_saved]} {
284 # Some targets don't have any implementation of __bb_init_func or are
285 # missing other needed machinery.
286 if { [istarget mmix-*-*]
287 || [istarget arm*-*-eabi*]
288 || [istarget arm*-*-elf]
289 || [istarget arm*-*-symbianelf*]
290 || [istarget powerpc-*-eabi*]
291 || [istarget strongarm*-*-elf]
292 || [istarget xscale*-*-elf]
293 || [istarget cris-*-*]
294 || [istarget h8300-*-*]
295 || [istarget mips*-*-elf]
296 || [istarget xtensa-*-elf]
297 || [istarget *-*-windiss] } {
298 set profiling_available_saved 0
300 set profiling_available_saved 1
304 return $profiling_available_saved
307 # Return 1 if -fpic and -fPIC are supported, as in no warnings or errors
308 # emitted, 0 otherwise. Whether a shared library can actually be built is
309 # out of scope for this test.
311 # When the target name changes, replace the cached result.
313 proc check_effective_target_fpic { } {
315 global et_fpic_target_name
317 if { ![info exists et_fpic_target_name] } {
318 set et_fpic_target_name ""
321 # If the target has changed since we set the cached value, clear it.
322 set current_target [current_target_name]
323 if { $current_target != $et_fpic_target_name } {
324 verbose "check_effective_target_fpic: `$et_fpic_target_name'" 2
325 set et_fpic_target_name $current_target
326 if [info exists et_fpic_saved] {
327 verbose "check_effective_target_fpic: removing cached result" 2
332 if [info exists et_fpic_saved] {
333 verbose "check_effective_target_fpic: using cached result" 2
335 verbose "check_effective_target_fpic: compiling source" 2
337 # Note that M68K has a multilib that supports -fpic but not
338 # -fPIC, so we need to check both. We test with a program that
339 # requires GOT references.
340 set et_fpic_saved [string match "" [get_compiler_messages fpic object {
341 extern int foo (void); extern int bar;
342 int baz (void) { return foo () + bar; }
345 if { $et_fpic_saved != 0 } {
346 set et_fpic_saved [string match "" [get_compiler_messages fpic object {
347 extern int foo (void); extern int bar;
348 int baz (void) { return foo () + bar; }
352 verbose "check_effective_target_fpic: returning $et_fpic_saved" 2
353 return $et_fpic_saved
356 # Return true if iconv is supported on the target. In particular IBM1047.
358 proc check_iconv_available { test_what } {
366 verbose "check_iconv_available compiling testfile $src" 2
367 set f [open $src "w"]
368 # Compile a small test program.
369 puts $f "#include <iconv.h>\n"
370 puts $f "int main (void)\n {\n iconv_t cd; \n"
371 puts $f "cd = iconv_open (\"[lindex $test_what 1]\", \"UTF-8\");\n"
372 puts $f "if (cd == (iconv_t) -1)\n return 1;\n"
373 puts $f "return 0;\n}"
376 # If the tool configuration file has not set libiconv, try "-liconv"
377 if { ![info exists libiconv] } {
378 set libiconv "-liconv"
380 set lines [${tool}_target_compile $src $exe executable "libs=$libiconv" ]
383 if [string match "" $lines] then {
384 # No error messages, everything is OK.
386 set result [${tool}_load "./$exe" "" ""]
387 set status [lindex $result 0]
388 remote_file build delete $exe
390 verbose "check_iconv_available status is <$status>" 2
392 if { $status == "pass" } then {
400 # Return true if named sections are supported on this target.
401 # This proc does not cache results, because the answer may vary
402 # when cycling over subtarget options (e.g. irix o32/n32/n64) in
404 proc check_named_sections_available { } {
405 verbose "check_named_sections_available: compiling source" 2
406 set answer [string match "" [get_compiler_messages named object {
407 int __attribute__ ((section("whatever"))) foo;
409 verbose "check_named_sections_available: returning $answer" 2
413 # Return 1 if the target supports Fortran real kinds larger than real(8),
414 # 0 otherwise. Cache the result.
416 proc check_effective_target_fortran_large_real { } {
417 global et_fortran_large_real_saved
420 if [info exists et_fortran_large_real_saved] {
421 verbose "check_effective_target_fortran_large_real returning saved $et_fortran_large_real_saved" 2
423 set et_fortran_large_real_saved 0
425 # Set up, compile, and execute a test program using large real
426 # kinds. Include the current process ID in the file names to
427 # prevent conflicts with invocations for multiple testsuites.
428 set src real[pid].f90
431 set f [open $src "w"]
432 puts $f "integer,parameter :: k = &"
433 puts $f " selected_real_kind (precision (0.0_8) + 1)"
434 puts $f "real(kind=k) :: x"
438 verbose "check_effective_target_fortran_large_real compiling testfile $src" 2
439 set lines [${tool}_target_compile $src $exe executable ""]
442 if [string match "" $lines] then {
443 # No error message, compilation succeeded.
444 set et_fortran_large_real_saved 1
448 return $et_fortran_large_real_saved
451 # Return 1 if the target supports Fortran integer kinds larger than
452 # integer(8), 0 otherwise. Cache the result.
454 proc check_effective_target_fortran_large_int { } {
455 global et_fortran_large_int_saved
458 if [info exists et_fortran_large_int_saved] {
459 verbose "check_effective_target_fortran_large_int returning saved $et_fortran_large_int_saved" 2
461 set et_fortran_large_int_saved 0
463 # Set up, compile, and execute a test program using large integer
464 # kinds. Include the current process ID in the file names to
465 # prevent conflicts with invocations for multiple testsuites.
469 set f [open $src "w"]
470 puts $f "integer,parameter :: k = &"
471 puts $f " selected_int_kind (range (0_8) + 1)"
472 puts $f "integer(kind=k) :: i"
476 verbose "check_effective_target_fortran_large_int compiling testfile $src" 2
477 set lines [${tool}_target_compile $src $exe executable ""]
480 if [string match "" $lines] then {
481 # No error message, compilation succeeded.
482 set et_fortran_large_int_saved 1
486 return $et_fortran_large_int_saved
489 # Return 1 if the target supports executing AltiVec instructions, 0
490 # otherwise. Cache the result.
492 proc check_vmx_hw_available { } {
493 global vmx_hw_available_saved
496 if [info exists vmx_hw_available_saved] {
497 verbose "check_hw_available returning saved $vmx_hw_available_saved" 2
499 set vmx_hw_available_saved 0
501 # Some simulators are known to not support VMX instructions.
502 if { [istarget powerpc-*-eabi] || [istarget powerpc*-*-eabispe] } {
503 verbose "check_hw_available returning 0" 2
504 return $vmx_hw_available_saved
507 # Set up, compile, and execute a test program containing VMX
508 # instructions. Include the current process ID in the file
509 # names to prevent conflicts with invocations for multiple
514 set f [open $src "w"]
515 puts $f "int main() {"
516 puts $f "#ifdef __MACH__"
517 puts $f " asm volatile (\"vor v0,v0,v0\");"
519 puts $f " asm volatile (\"vor 0,0,0\");"
521 puts $f " return 0; }"
524 # Most targets don't require special flags for this test case, but
526 if [istarget *-*-darwin*] {
527 set opts "additional_flags=-maltivec"
532 verbose "check_vmx_hw_available compiling testfile $src" 2
533 set lines [${tool}_target_compile $src $exe executable "$opts"]
536 if [string match "" $lines] then {
537 # No error message, compilation succeeded.
538 set result [${tool}_load "./$exe" "" ""]
539 set status [lindex $result 0]
540 remote_file build delete $exe
541 verbose "check_vmx_hw_available testfile status is <$status>" 2
543 if { $status == "pass" } then {
544 set vmx_hw_available_saved 1
547 verbose "check_vmx_hw_availalble testfile compilation failed" 2
551 return $vmx_hw_available_saved
554 # GCC 3.4.0 for powerpc64-*-linux* included an ABI fix for passing
555 # complex float arguments. This affects gfortran tests that call cabsf
556 # in libm built by an earlier compiler. Return 1 if libm uses the same
557 # argument passing as the compiler under test, 0 otherwise.
559 # When the target name changes, replace the cached result.
561 proc check_effective_target_broken_cplxf_arg { } {
562 global et_broken_cplxf_arg_saved
563 global et_broken_cplxf_arg_target_name
566 # Skip the work for targets known not to be affected.
567 if { ![istarget powerpc64-*-linux*] } {
569 } elseif { [is-effective-target ilp32] } {
573 if { ![info exists et_broken_cplxf_arg_target_name] } {
574 set et_broken_cplxf_arg_target_name ""
577 # If the target has changed since we set the cached value, clear it.
578 set current_target [current_target_name]
579 if { $current_target != $et_broken_cplxf_arg_target_name } {
580 verbose "check_effective_target_broken_cplxf_arg: `$et_broken_cplxf_arg_target_name'" 2
581 set et_broken_cplxf_arg_target_name $current_target
582 if [info exists et_broken_cplxf_arg_saved] {
583 verbose "check_effective_target_broken_cplxf_arg: removing cached result" 2
584 unset et_broken_cplxf_arg_saved
588 if [info exists et_broken_cplxf_arg_saved] {
589 verbose "check_effective_target_broken_cplxf_arg: using cached result" 2
591 set et_broken_cplxf_arg_saved 0
592 # This is only known to affect one target.
593 if { ![istarget powerpc64-*-linux*] || ![is-effective-target lp64] } {
594 set et_broken_cplxf_arg_saved 0
595 verbose "check_effective_target_broken_cplxf_arg: caching 0" 2
596 return $et_broken_cplxf_arg_saved
599 # Set up, compile, and execute a C test program that calls cabsf.
603 set f [open $src "w"]
604 puts $f "#include <complex.h>"
605 puts $f "extern void abort (void);"
606 puts $f "float fabsf (float);"
607 puts $f "float cabsf (_Complex float);"
608 puts $f "int main ()"
610 puts $f " _Complex float cf;"
612 puts $f " cf = 3 + 4.0fi;"
613 puts $f " f = cabsf (cf);"
614 puts $f " if (fabsf (f - 5.0) > 0.0001) abort ();"
619 set lines [${tool}_target_compile $src $exe executable "-lm"]
622 if [string match "" $lines] {
623 # No error message, compilation succeeded.
624 set result [${tool}_load "./$exe" "" ""]
625 set status [lindex $result 0]
626 remote_file build delete $exe
628 verbose "check_effective_target_broken_cplxf_arg: status is <$status>" 2
630 if { $status != "pass" } {
631 set et_broken_cplxf_arg_saved 1
634 verbose "check_effective_target_broken_cplxf_arg: compilation failed" 2
637 return $et_broken_cplxf_arg_saved
640 proc check_alpha_max_hw_available { } {
641 global alpha_max_hw_available_saved
644 if [info exists alpha_max_hw_available_saved] {
645 verbose "check_alpha_max_hw_available returning saved $alpha_max_hw_available_saved" 2
647 set alpha_max_hw_available_saved 0
649 # Set up, compile, and execute a test program probing bit 8 of the
650 # architecture mask, which indicates presence of MAX instructions.
654 set f [open $src "w"]
655 puts $f "int main() { return __builtin_alpha_amask(1<<8) != 0; }"
658 verbose "check_alpha_max_hw_available compiling testfile $src" 2
659 set lines [${tool}_target_compile $src $exe executable ""]
662 if [string match "" $lines] then {
663 # No error message, compilation succeeded.
664 set result [${tool}_load "./$exe" "" ""]
665 set status [lindex $result 0]
666 remote_file build delete $exe
667 verbose "check_alpha_max_hw_available testfile status is <$status>" 2
669 if { $status == "pass" } then {
670 set alpha_max_hw_available_saved 1
673 verbose "check_alpha_max_hw_availalble testfile compilation failed" 2
677 return $alpha_max_hw_available_saved
680 # Returns true iff the FUNCTION is available on the target system.
681 # (This is essentially a Tcl implementation of Autoconf's
684 proc check_function_available { function } {
685 set var "${function}_available_saved"
689 if {![info exists $var]} {
692 # Check to make sure.
693 set src "function[pid].c"
694 set exe "function[pid].exe"
696 set f [open $src "w"]
697 puts $f "int main () { $function (); }"
700 set lines [${tool}_target_compile $src $exe executable ""]
704 if {![string match "" $lines]} then {
706 verbose -log "$function is not available"
708 verbose -log "$function is available"
715 # Returns true iff "fork" is available on the target system.
717 proc check_fork_available {} {
718 return [check_function_available "fork"]
721 # Returns true iff "mkfifo" is available on the target system.
723 proc check_mkfifo_available {} {
724 if {[istarget *-*-cygwin*]} {
725 # Cygwin has mkfifo, but support is incomplete.
729 return [check_function_available "mkfifo"]
732 # Return 1 if we're generating 32-bit code using default options, 0
735 # When the target name changes, replace the cached result.
737 proc check_effective_target_ilp32 { } {
738 global et_ilp32_saved
739 global et_ilp32_target_name
741 if { ![info exists et_ilp32_target_name] } {
742 set et_ilp32_target_name ""
745 # If the target has changed since we set the cached value, clear it.
746 set current_target [current_target_name]
747 if { $current_target != $et_ilp32_target_name } {
748 verbose "check_effective_target_ilp32: `$et_ilp32_target_name' `$current_target'" 2
749 set et_ilp32_target_name $current_target
750 if { [info exists et_ilp32_saved] } {
751 verbose "check_effective_target_ilp32: removing cached result" 2
756 if [info exists et_ilp32_saved] {
757 verbose "check-effective_target_ilp32: using cached result" 2
759 verbose "check_effective_target_ilp32: compiling source" 2
760 set et_ilp32_saved [string match "" [get_compiler_messages ilp32 object {
761 int dummy[(sizeof (int) == 4 && sizeof (void *) == 4 && sizeof (long) == 4 ) ? 1 : -1];
764 verbose "check_effective_target_ilp32: returning $et_ilp32_saved" 2
765 return $et_ilp32_saved
768 # Return 1 if we're generating 64-bit code using default options, 0
771 # When the target name changes, replace the cached result.
773 proc check_effective_target_lp64 { } {
775 global et_lp64_target_name
777 if { ![info exists et_lp64_target_name] } {
778 set et_lp64_target_name ""
781 # If the target has changed since we set the cached value, clear it.
782 set current_target [current_target_name]
783 if { $current_target != $et_lp64_target_name } {
784 verbose "check_effective_target_lp64: `$et_lp64_target_name' `$current_target'" 2
785 set et_lp64_target_name $current_target
786 if [info exists et_lp64_saved] {
787 verbose "check_effective_target_lp64: removing cached result" 2
792 if [info exists et_lp64_saved] {
793 verbose "check_effective_target_lp64: using cached result" 2
795 verbose "check_effective_target_lp64: compiling source" 2
796 set et_lp64_saved [string match "" [get_compiler_messages lp64 object {
797 int dummy[(sizeof (int) == 4 && sizeof (void *) == 8 && sizeof (long) == 8 ) ? 1 : -1];
800 verbose "check_effective_target_lp64: returning $et_lp64_saved" 2
801 return $et_lp64_saved
804 # Return 1 if the target needs a command line argument to enable a SIMD
807 # This won't change for different subtargets so cache the result.
809 proc check_effective_target_vect_cmdline_needed { } {
810 global et_vect_cmdline_needed_saved
812 if [info exists et_vect_cmdline_needed_saved] {
813 verbose "check_effective_target_vect_cmdline_needed: using cached result" 2
815 set et_vect_cmdline_needed_saved 1
816 if { [istarget ia64-*-*]
817 || [istarget x86_64-*-*] } {
818 set et_vect_cmdline_needed_saved 0
822 verbose "check_effective_target_vect_cmdline_needed: returning $et_vect_cmdline_needed_saved" 2
823 return $et_vect_cmdline_needed_saved
826 # Return 1 if the target supports hardware vectors of int, 0 otherwise.
828 # This won't change for different subtargets so cache the result.
830 proc check_effective_target_vect_int { } {
831 global et_vect_int_saved
833 if [info exists et_vect_int_saved] {
834 verbose "check_effective_target_vect_int: using cached result" 2
836 set et_vect_int_saved 0
837 if { [istarget i?86-*-*]
838 || [istarget powerpc*-*-*]
839 || [istarget x86_64-*-*]
840 || [istarget sparc*-*-*]
841 || [istarget alpha*-*-*]
842 || [istarget ia64-*-*] } {
843 set et_vect_int_saved 1
847 verbose "check_effective_target_vect_int: returning $et_vect_int_saved" 2
848 return $et_vect_int_saved
851 # Return 1 is this is an arm target using 32-bit instructions
852 proc check_effective_target_arm32 { } {
853 global et_arm32_saved
854 global et_arm32_target_name
855 global compiler_flags
857 if { ![info exists et_arm32_target_name] } {
858 set et_arm32_target_name ""
861 # If the target has changed since we set the cached value, clear it.
862 set current_target [current_target_name]
863 if { $current_target != $et_arm32_target_name } {
864 verbose "check_effective_target_arm32: `$et_arm32_target_name' `$current_target'" 2
865 set et_arm32_target_name $current_target
866 if { [info exists et_arm32_saved] } {
867 verbose "check_effective_target_arm32: removing cached result" 2
872 if [info exists et_arm32_saved] {
873 verbose "check-effective_target_arm32: using cached result" 2
876 if { [istarget arm-*-*]
877 || [istarget strongarm*-*-*]
878 || [istarget xscale-*-*] } {
879 if ![string match "*-mthumb *" $compiler_flags] {
884 verbose "check_effective_target_arm32: returning $et_arm32_saved" 2
885 return $et_arm32_saved
888 # Return 1 if the target supports hardware vector shift operation.
890 proc check_effective_target_vect_shift { } {
891 if { [istarget powerpc*-*-*] } {
897 verbose "check_effective_target_vect_shift: returning $answer" 2
901 # Return 1 if the target supports hardware vectors of long, 0 otherwise.
903 # This can change for different subtargets so do not cache the result.
905 proc check_effective_target_vect_long { } {
906 if { [istarget i?86-*-*]
907 || ([istarget powerpc*-*-*] && [check_effective_target_ilp32])
908 || [istarget x86_64-*-*]
909 || ([istarget sparc*-*-*] && [check_effective_target_ilp32]) } {
915 verbose "check_effective_target_vect_long: returning $answer" 2
919 # Return 1 if the target supports hardware vectors of float, 0 otherwise.
921 # This won't change for different subtargets so cache the result.
923 proc check_effective_target_vect_float { } {
924 global et_vect_float_saved
926 if [info exists et_vect_float_saved] {
927 verbose "check_effective_target_vect_float: using cached result" 2
929 set et_vect_float_saved 0
930 if { [istarget i?86-*-*]
931 || [istarget powerpc*-*-*]
932 || [istarget mipsisa64*-*-*]
933 || [istarget x86_64-*-*]
934 || [istarget ia64-*-*] } {
935 set et_vect_float_saved 1
939 verbose "check_effective_target_vect_float: returning $et_vect_float_saved" 2
940 return $et_vect_float_saved
943 # Return 1 if the target supports hardware vectors of double, 0 otherwise.
945 # This won't change for different subtargets so cache the result.
947 proc check_effective_target_vect_double { } {
948 global et_vect_double_saved
950 if [info exists et_vect_double_saved] {
951 verbose "check_effective_target_vect_double: using cached result" 2
953 set et_vect_double_saved 0
954 if { [istarget i?86-*-*]
955 || [istarget x86_64-*-*] } {
956 set et_vect_double_saved 1
960 verbose "check_effective_target_vect_double: returning $et_vect_double_saved" 2
961 return $et_vect_double_saved
964 # Return 1 if the target plus current options does not support a vector
965 # max instruction, 0 otherwise.
967 # This won't change for different subtargets so cache the result.
969 proc check_effective_target_vect_no_max { } {
970 global et_vect_no_max_saved
972 if [info exists et_vect_no_max_saved] {
973 verbose "check_effective_target_vect_no_max: using cached result" 2
975 set et_vect_no_max_saved 0
976 if { [istarget i?86-*-*]
977 || [istarget x86_64-*-*]
978 || [istarget sparc*-*-*]
979 || [istarget alpha*-*-*] } {
980 set et_vect_no_max_saved 1
983 verbose "check_effective_target_vect_no_max: returning $et_vect_no_max_saved" 2
984 return $et_vect_no_max_saved
987 # Return 1 if the target plus current options does not support vector
988 # bitwise instructions, 0 otherwise.
990 # This won't change for different subtargets so cache the result.
992 proc check_effective_target_vect_no_bitwise { } {
993 global et_vect_no_bitwise_saved
995 if [info exists et_vect_no_bitwise_saved] {
996 verbose "check_effective_target_vect_no_bitwise: using cached result" 2
998 set et_vect_no_bitwise_saved 0
1000 verbose "check_effective_target_vect_no_bitwise: returning $et_vect_no_bitwise_saved" 2
1001 return $et_vect_no_bitwise_saved
1004 # Return 1 if the target plus current options does not support a vector
1005 # alignment mechanism, 0 otherwise.
1007 # This won't change for different subtargets so cache the result.
1009 proc check_effective_target_vect_no_align { } {
1010 global et_vect_no_align_saved
1012 if [info exists et_vect_no_align_saved] {
1013 verbose "check_effective_target_vect_no_align: using cached result" 2
1015 set et_vect_no_align_saved 0
1016 if { [istarget mipsisa64*-*-*]
1017 || [istarget sparc*-*-*]
1018 || [istarget ia64-*-*] } {
1019 set et_vect_no_align_saved 1
1022 verbose "check_effective_target_vect_no_align: returning $et_vect_no_align_saved" 2
1023 return $et_vect_no_align_saved
1026 # Return 1 if the target supports vector conditional operations, 0 otherwise.
1028 proc check_effective_target_vect_condition { } {
1029 global et_vect_cond_saved
1031 if [info exists et_vect_int_cond] {
1032 verbose "check_effective_target_vect_cond: using cached result" 2
1034 set et_vect_cond_saved 0
1035 if { [istarget powerpc*-*-*]
1036 || [istarget ia64-*-*]
1037 || [istarget i?86-*-*]
1038 || [istarget x86_64-*-*] } {
1039 set et_vect_cond_saved 1
1043 verbose "check_effective_target_vect_cond: returning $et_vect_cond_saved" 2
1044 return $et_vect_cond_saved
1047 # Return 1 if the target supports vector int multiplication, 0 otherwise.
1049 proc check_effective_target_vect_int_mult { } {
1050 global et_vect_int_mult_saved
1052 if [info exists et_vect_int_mult_saved] {
1053 verbose "check_effective_target_vect_int_mult: using cached result" 2
1055 set et_vect_int_mult_saved 0
1056 if { [istarget powerpc*-*-*]
1057 || [istarget i?86-*-*]
1058 || [istarget x86_64-*-*] } {
1059 set et_vect_int_mult_saved 1
1063 verbose "check_effective_target_vect_int_mult: returning $et_vect_int_mult_saved" 2
1064 return $et_vect_int_mult_saved
1067 # Return 1 if the target supports atomic operations on "int" and "long".
1069 proc check_effective_target_sync_int_long { } {
1070 global et_sync_int_long_saved
1072 if [info exists et_sync_int_long_saved] {
1073 verbose "check_effective_target_sync_int_long: using cached result" 2
1075 set et_sync_int_long_saved 0
1076 # This is intentionally powerpc but not rs6000, rs6000 doesn't have the
1077 # load-reserved/store-conditional instructions.
1078 if { [istarget ia64-*-*]
1079 || [istarget i?86-*-*]
1080 || [istarget x86_64-*-*]
1081 || [istarget alpha*-*-*]
1082 || [istarget s390*-*-*]
1083 || [istarget powerpc*-*-*] } {
1084 set et_sync_int_long_saved 1
1088 verbose "check_effective_target_sync_int_long: returning $et_sync_int_long_saved" 2
1089 return $et_sync_int_long_saved
1092 # Return 1 if the target supports atomic operations on "char" and "short".
1094 proc check_effective_target_sync_char_short { } {
1095 global et_sync_char_short_saved
1097 if [info exists et_sync_char_short_saved] {
1098 verbose "check_effective_target_sync_char_short: using cached result" 2
1100 set et_sync_char_short_saved 0
1101 # This is intentionally powerpc but not rs6000, rs6000 doesn't have the
1102 # load-reserved/store-conditional instructions.
1103 if { [istarget ia64-*-*]
1104 || [istarget i?86-*-*]
1105 || [istarget x86_64-*-*]
1106 || [istarget powerpc*-*-*] } {
1107 set et_sync_char_short_saved 1
1111 verbose "check_effective_target_sync_char_short: returning $et_sync_char_short_saved" 2
1112 return $et_sync_char_short_saved
1115 # Return 1 if the target matches the effective target 'arg', 0 otherwise.
1116 # This can be used with any check_* proc that takes no argument and
1117 # returns only 1 or 0. It could be used with check_* procs that take
1118 # arguments with keywords that pass particular arguments.
1120 proc is-effective-target { arg } {
1122 if { [info procs check_effective_target_${arg}] != [list] } {
1123 set selected [check_effective_target_${arg}]
1126 "vmx_hw" { set selected [check_vmx_hw_available] }
1127 "named_sections" { set selected [check_named_sections_available] }
1128 "gc_sections" { set selected [check_gc_sections_available] }
1129 default { error "unknown effective target keyword `$arg'" }
1132 verbose "is-effective-target: $arg $selected" 2
1136 # Return 1 if the argument is an effective-target keyword, 0 otherwise.
1138 proc is-effective-target-keyword { arg } {
1139 if { [info procs check_effective_target_${arg}] != [list] } {
1142 # These have different names for their check_* procs.
1144 "vmx_hw" { return 1 }
1145 "named_sections" { return 1 }
1146 "gc_sections" { return 1 }
1147 default { return 0 }