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 *-*-windiss] } {
297 set profiling_available_saved 0
299 set profiling_available_saved 1
303 return $profiling_available_saved
306 # Return 1 if -fpic and -fPIC are supported, as in no warnings or errors
307 # emitted, 0 otherwise. Whether a shared library can actually be built is
308 # out of scope for this test.
310 # When the target name changes, replace the cached result.
312 proc check_effective_target_fpic { } {
314 global et_fpic_target_name
316 if { ![info exists et_fpic_target_name] } {
317 set et_fpic_target_name ""
320 # If the target has changed since we set the cached value, clear it.
321 set current_target [current_target_name]
322 if { $current_target != $et_fpic_target_name } {
323 verbose "check_effective_target_fpic: `$et_fpic_target_name'" 2
324 set et_fpic_target_name $current_target
325 if [info exists et_fpic_saved] {
326 verbose "check_effective_target_fpic: removing cached result" 2
331 if [info exists et_fpic_saved] {
332 verbose "check_effective_target_fpic: using cached result" 2
334 verbose "check_effective_target_fpic: compiling source" 2
336 # Note that M68K has a multilib that supports -fpic but not
337 # -fPIC, so we need to check both. We test with a program that
338 # requires GOT references.
339 set et_fpic_saved [string match "" [get_compiler_messages fpic object {
340 extern int foo (void); extern int bar;
341 int baz (void) { return foo () + bar; }
344 if { $et_fpic_saved != 0 } {
345 set et_fpic_saved [string match "" [get_compiler_messages fpic object {
346 extern int foo (void); extern int bar;
347 int baz (void) { return foo () + bar; }
351 verbose "check_effective_target_fpic: returning $et_fpic_saved" 2
352 return $et_fpic_saved
355 # Return true if iconv is supported on the target. In particular IBM1047.
357 proc check_iconv_available { test_what } {
365 verbose "check_iconv_available compiling testfile $src" 2
366 set f [open $src "w"]
367 # Compile a small test program.
368 puts $f "#include <iconv.h>\n"
369 puts $f "int main (void)\n {\n iconv_t cd; \n"
370 puts $f "cd = iconv_open (\"[lindex $test_what 1]\", \"UTF-8\");\n"
371 puts $f "if (cd == (iconv_t) -1)\n return 1;\n"
372 puts $f "return 0;\n}"
375 # If the tool configuration file has not set libiconv, try "-liconv"
376 if { ![info exists libiconv] } {
377 set libiconv "-liconv"
379 set lines [${tool}_target_compile $src $exe executable "libs=$libiconv" ]
382 if [string match "" $lines] then {
383 # No error messages, everything is OK.
385 set result [${tool}_load "./$exe" "" ""]
386 set status [lindex $result 0]
387 remote_file build delete $exe
389 verbose "check_iconv_available status is <$status>" 2
391 if { $status == "pass" } then {
399 # Return true if named sections are supported on this target.
400 # This proc does not cache results, because the answer may vary
401 # when cycling over subtarget options (e.g. irix o32/n32/n64) in
403 proc check_named_sections_available { } {
404 verbose "check_named_sections_available: compiling source" 2
405 set answer [string match "" [get_compiler_messages named object {
406 int __attribute__ ((section("whatever"))) foo;
408 verbose "check_named_sections_available: returning $answer" 2
412 # Return 1 if the target supports executing AltiVec instructions, 0
413 # otherwise. Cache the result.
415 proc check_vmx_hw_available { } {
416 global vmx_hw_available_saved
419 if [info exists vmx_hw_available_saved] {
420 verbose "check_hw_available returning saved $vmx_hw_available_saved" 2
422 set vmx_hw_available_saved 0
424 # Some simulators are known to not support VMX instructions.
425 if { [istarget powerpc-*-eabi] || [istarget powerpc*-*-eabispe] } {
426 verbose "check_hw_available returning 0" 2
427 return $vmx_hw_available_saved
430 # Set up, compile, and execute a test program containing VMX
431 # instructions. Include the current process ID in the file
432 # names to prevent conflicts with invocations for multiple
437 set f [open $src "w"]
438 puts $f "int main() {"
439 puts $f "#ifdef __MACH__"
440 puts $f " asm volatile (\"vor v0,v0,v0\");"
442 puts $f " asm volatile (\"vor 0,0,0\");"
444 puts $f " return 0; }"
447 # Most targets don't require special flags for this test case, but
449 if [istarget *-*-darwin*] {
450 set opts "additional_flags=-maltivec"
455 verbose "check_vmx_hw_available compiling testfile $src" 2
456 set lines [${tool}_target_compile $src $exe executable "$opts"]
459 if [string match "" $lines] then {
460 # No error message, compilation succeeded.
461 set result [${tool}_load "./$exe" "" ""]
462 set status [lindex $result 0]
463 remote_file build delete $exe
464 verbose "check_vmx_hw_available testfile status is <$status>" 2
466 if { $status == "pass" } then {
467 set vmx_hw_available_saved 1
470 verbose "check_vmx_hw_availalble testfile compilation failed" 2
474 return $vmx_hw_available_saved
477 # GCC 3.4.0 for powerpc64-*-linux* included an ABI fix for passing
478 # complex float arguments. This affects gfortran tests that call cabsf
479 # in libm built by an earlier compiler. Return 1 if libm uses the same
480 # argument passing as the compiler under test, 0 otherwise.
482 # When the target name changes, replace the cached result.
484 proc check_effective_target_broken_cplxf_arg { } {
485 global et_broken_cplxf_arg_saved
486 global et_broken_cplxf_arg_target_name
489 # Skip the work for targets known not to be affected.
490 if { ![istarget powerpc64-*-linux*] } {
492 } elseif { [is-effective-target ilp32] } {
496 if { ![info exists et_broken_cplxf_arg_target_name] } {
497 set et_broken_cplxf_arg_target_name ""
500 # If the target has changed since we set the cached value, clear it.
501 set current_target [current_target_name]
502 if { $current_target != $et_broken_cplxf_arg_target_name } {
503 verbose "check_effective_target_broken_cplxf_arg: `$et_broken_cplxf_arg_target_name'" 2
504 set et_broken_cplxf_arg_target_name $current_target
505 if [info exists et_broken_cplxf_arg_saved] {
506 verbose "check_effective_target_broken_cplxf_arg: removing cached result" 2
507 unset et_broken_cplxf_arg_saved
511 if [info exists et_broken_cplxf_arg_saved] {
512 verbose "check_effective_target_broken_cplxf_arg: using cached result" 2
514 set et_broken_cplxf_arg_saved 0
515 # This is only known to affect one target.
516 if { ![istarget powerpc64-*-linux*] || ![is-effective-target lp64] } {
517 set et_broken_cplxf_arg_saved 0
518 verbose "check_effective_target_broken_cplxf_arg: caching 0" 2
519 return $et_broken_cplxf_arg_saved
522 # Set up, compile, and execute a C test program that calls cabsf.
526 set f [open $src "w"]
527 puts $f "#include <complex.h>"
528 puts $f "extern void abort (void);"
529 puts $f "float fabsf (float);"
530 puts $f "float cabsf (_Complex float);"
531 puts $f "int main ()"
533 puts $f " _Complex float cf;"
535 puts $f " cf = 3 + 4.0fi;"
536 puts $f " f = cabsf (cf);"
537 puts $f " if (fabsf (f - 5.0) > 0.0001) abort ();"
542 set lines [${tool}_target_compile $src $exe executable "-lm"]
545 if [string match "" $lines] {
546 # No error message, compilation succeeded.
547 set result [${tool}_load "./$exe" "" ""]
548 set status [lindex $result 0]
549 remote_file build delete $exe
551 verbose "check_effective_target_broken_cplxf_arg: status is <$status>" 2
553 if { $status != "pass" } {
554 set et_broken_cplxf_arg_saved 1
557 verbose "check_effective_target_broken_cplxf_arg: compilation failed" 2
560 return $et_broken_cplxf_arg_saved
563 proc check_alpha_max_hw_available { } {
564 global alpha_max_hw_available_saved
567 if [info exists alpha_max_hw_available_saved] {
568 verbose "check_alpha_max_hw_available returning saved $alpha_max_hw_available_saved" 2
570 set alpha_max_hw_available_saved 0
572 # Set up, compile, and execute a test program probing bit 8 of the
573 # architecture mask, which indicates presence of MAX instructions.
577 set f [open $src "w"]
578 puts $f "int main() { return __builtin_alpha_amask(1<<8) != 0; }"
581 verbose "check_alpha_max_hw_available compiling testfile $src" 2
582 set lines [${tool}_target_compile $src $exe executable ""]
585 if [string match "" $lines] then {
586 # No error message, compilation succeeded.
587 set result [${tool}_load "./$exe" "" ""]
588 set status [lindex $result 0]
589 remote_file build delete $exe
590 verbose "check_alpha_max_hw_available testfile status is <$status>" 2
592 if { $status == "pass" } then {
593 set alpha_max_hw_available_saved 1
596 verbose "check_alpha_max_hw_availalble testfile compilation failed" 2
600 return $alpha_max_hw_available_saved
603 # Return 1 if we're generating 32-bit code using default options, 0
606 # When the target name changes, replace the cached result.
608 proc check_effective_target_ilp32 { } {
609 global et_ilp32_saved
610 global et_ilp32_target_name
612 if { ![info exists et_ilp32_target_name] } {
613 set et_ilp32_target_name ""
616 # If the target has changed since we set the cached value, clear it.
617 set current_target [current_target_name]
618 if { $current_target != $et_ilp32_target_name } {
619 verbose "check_effective_target_ilp32: `$et_ilp32_target_name' `$current_target'" 2
620 set et_ilp32_target_name $current_target
621 if { [info exists et_ilp32_saved] } {
622 verbose "check_effective_target_ilp32: removing cached result" 2
627 if [info exists et_ilp32_saved] {
628 verbose "check-effective_target_ilp32: using cached result" 2
630 verbose "check_effective_target_ilp32: compiling source" 2
631 set et_ilp32_saved [string match "" [get_compiler_messages ilp32 object {
632 int dummy[(sizeof (int) == 4 && sizeof (void *) == 4 && sizeof (long) == 4 ) ? 1 : -1];
635 verbose "check_effective_target_ilp32: returning $et_ilp32_saved" 2
636 return $et_ilp32_saved
639 # Return 1 if we're generating 64-bit code using default options, 0
642 # When the target name changes, replace the cached result.
644 proc check_effective_target_lp64 { } {
646 global et_lp64_target_name
648 if { ![info exists et_lp64_target_name] } {
649 set et_lp64_target_name ""
652 # If the target has changed since we set the cached value, clear it.
653 set current_target [current_target_name]
654 if { $current_target != $et_lp64_target_name } {
655 verbose "check_effective_target_lp64: `$et_lp64_target_name' `$current_target'" 2
656 set et_lp64_target_name $current_target
657 if [info exists et_lp64_saved] {
658 verbose "check_effective_target_lp64: removing cached result" 2
663 if [info exists et_lp64_saved] {
664 verbose "check_effective_target_lp64: using cached result" 2
666 verbose "check_effective_target_lp64: compiling source" 2
667 set et_lp64_saved [string match "" [get_compiler_messages lp64 object {
668 int dummy[(sizeof (int) == 4 && sizeof (void *) == 8 && sizeof (long) == 8 ) ? 1 : -1];
671 verbose "check_effective_target_lp64: returning $et_lp64_saved" 2
672 return $et_lp64_saved
675 # Return 1 if the target supports hardware vectors of int, 0 otherwise.
677 # This won't change for different subtargets so cache the result.
679 proc check_effective_target_vect_int { } {
680 global et_vect_int_saved
682 if [info exists et_vect_int_saved] {
683 verbose "check_effective_target_vect_int: using cached result" 2
685 set et_vect_int_saved 0
686 if { [istarget i?86-*-*]
687 || [istarget powerpc*-*-*]
688 || [istarget x86_64-*-*]
689 || [istarget sparc*-*-*]
690 || [istarget alpha*-*-*]
691 || [istarget ia64-*-*] } {
692 set et_vect_int_saved 1
696 verbose "check_effective_target_vect_int: returning $et_vect_int_saved" 2
697 return $et_vect_int_saved
700 # Return 1 if the target supports hardware vector shift operation.
702 proc check_effective_target_vect_shift { } {
703 if { [istarget powerpc*-*-*] } {
709 verbose "check_effective_target_vect_shift: returning $answer" 2
713 # Return 1 if the target supports hardware vectors of long, 0 otherwise.
715 # This can change for different subtargets so do not cache the result.
717 proc check_effective_target_vect_long { } {
718 if { [istarget i?86-*-*]
719 || ([istarget powerpc*-*-*] && [check_effective_target_ilp32])
720 || [istarget x86_64-*-*]
721 || ([istarget sparc*-*-*] && [check_effective_target_ilp32]) } {
727 verbose "check_effective_target_vect_long: returning $answer" 2
731 # Return 1 if the target supports hardware vectors of float, 0 otherwise.
733 # This won't change for different subtargets so cache the result.
735 proc check_effective_target_vect_float { } {
736 global et_vect_float_saved
738 if [info exists et_vect_float_saved] {
739 verbose "check_effective_target_vect_float: using cached result" 2
741 set et_vect_float_saved 0
742 if { [istarget i?86-*-*]
743 || [istarget powerpc*-*-*]
744 || [istarget mipsisa64*-*-*]
745 || [istarget x86_64-*-*]
746 || [istarget ia64-*-*] } {
747 set et_vect_float_saved 1
751 verbose "check_effective_target_vect_float: returning $et_vect_float_saved" 2
752 return $et_vect_float_saved
755 # Return 1 if the target supports hardware vectors of double, 0 otherwise.
757 # This won't change for different subtargets so cache the result.
759 proc check_effective_target_vect_double { } {
760 global et_vect_double_saved
762 if [info exists et_vect_double_saved] {
763 verbose "check_effective_target_vect_double: using cached result" 2
765 set et_vect_double_saved 0
766 if { [istarget i?86-*-*]
767 || [istarget x86_64-*-*] } {
768 set et_vect_double_saved 1
772 verbose "check_effective_target_vect_double: returning $et_vect_double_saved" 2
773 return $et_vect_double_saved
776 # Return 1 if the target plus current options does not support a vector
777 # max instruction, 0 otherwise.
779 # This won't change for different subtargets so cache the result.
781 proc check_effective_target_vect_no_max { } {
782 global et_vect_no_max_saved
784 if [info exists et_vect_no_max_saved] {
785 verbose "check_effective_target_vect_no_max: using cached result" 2
787 set et_vect_no_max_saved 0
788 if { [istarget i?86-*-*]
789 || [istarget x86_64-*-*]
790 || [istarget sparc*-*-*]
791 || [istarget alpha*-*-*] } {
792 set et_vect_no_max_saved 1
795 verbose "check_effective_target_vect_no_max: returning $et_vect_no_max_saved" 2
796 return $et_vect_no_max_saved
799 # Return 1 if the target plus current options does not support vector
800 # bitwise instructions, 0 otherwise.
802 # This won't change for different subtargets so cache the result.
804 proc check_effective_target_vect_no_bitwise { } {
805 global et_vect_no_bitwise_saved
807 if [info exists et_vect_no_bitwise_saved] {
808 verbose "check_effective_target_vect_no_bitwise: using cached result" 2
810 set et_vect_no_bitwise_saved 0
812 verbose "check_effective_target_vect_no_bitwise: returning $et_vect_no_bitwise_saved" 2
813 return $et_vect_no_bitwise_saved
816 # Return 1 if the target plus current options does not support a vector
817 # alignment mechanism, 0 otherwise.
819 # This won't change for different subtargets so cache the result.
821 proc check_effective_target_vect_no_align { } {
822 global et_vect_no_align_saved
824 if [info exists et_vect_no_align_saved] {
825 verbose "check_effective_target_vect_no_align: using cached result" 2
827 set et_vect_no_align_saved 0
828 if { [istarget mipsisa64*-*-*]
829 || [istarget sparc*-*-*]
830 || [istarget ia64-*-*] } {
831 set et_vect_no_align_saved 1
834 verbose "check_effective_target_vect_no_align: returning $et_vect_no_align_saved" 2
835 return $et_vect_no_align_saved
838 # Return 1 if the target supports vector conditional operations, 0 otherwise.
840 proc check_effective_target_vect_condition { } {
841 global et_vect_cond_saved
843 if [info exists et_vect_int_cond] {
844 verbose "check_effective_target_vect_cond: using cached result" 2
846 set et_vect_cond_saved 0
847 if { [istarget powerpc*-*-*]
848 || [istarget ia64-*-*]
849 || [istarget i?86-*-*]
850 || [istarget x86_64-*-*] } {
851 set et_vect_cond_saved 1
855 verbose "check_effective_target_vect_cond: returning $et_vect_cond_saved" 2
856 return $et_vect_cond_saved
859 # Return 1 if the target supports vector int multiplication, 0 otherwise.
861 proc check_effective_target_vect_int_mult { } {
862 global et_vect_int_mult_saved
864 if [info exists et_vect_int_mult_saved] {
865 verbose "check_effective_target_vect_int_mult: using cached result" 2
867 set et_vect_int_mult_saved 0
868 if { [istarget powerpc*-*-*] } {
869 set et_vect_int_mult_saved 1
873 verbose "check_effective_target_vect_int_mult: returning $et_vect_int_mult_saved" 2
874 return $et_vect_int_mult_saved
877 # Return 1 if the target supports atomic operations on "int" and "long".
879 proc check_effective_target_sync_int_long { } {
880 global et_sync_int_long_saved
882 if [info exists et_sync_int_long_saved] {
883 verbose "check_effective_target_sync_int_long: using cached result" 2
885 set et_sync_int_long_saved 0
886 # This is intentionally powerpc but not rs6000, rs6000 doesn't have the
887 # load-reserved/store-conditional instructions.
888 if { [istarget ia64-*-*]
889 || [istarget i?86-*-*]
890 || [istarget x86_64-*-*]
891 || [istarget alpha*-*-*]
892 || [istarget powerpc*-*-*] } {
893 set et_sync_int_long_saved 1
897 verbose "check_effective_target_sync_int_long: returning $et_sync_int_long_saved" 2
898 return $et_sync_int_long_saved
901 # Return 1 if the target matches the effective target 'arg', 0 otherwise.
902 # This can be used with any check_* proc that takes no argument and
903 # returns only 1 or 0. It could be used with check_* procs that take
904 # arguments with keywords that pass particular arguments.
906 proc is-effective-target { arg } {
908 if { [info procs check_effective_target_${arg}] != [list] } {
909 set selected [check_effective_target_${arg}]
912 "vmx_hw" { set selected [check_vmx_hw_available] }
913 "named_sections" { set selected [check_named_sections_available] }
914 "gc_sections" { set selected [check_gc_sections_available] }
915 default { error "unknown effective target keyword `$arg'" }
918 verbose "is-effective-target: $arg $selected" 2
922 # Return 1 if the argument is an effective-target keyword, 0 otherwise.
924 proc is-effective-target-keyword { arg } {
925 if { [info procs check_effective_target_${arg}] != [list] } {
928 # These have different names for their check_* procs.
930 "vmx_hw" { return 1 }
931 "named_sections" { return 1 }
932 "gc_sections" { return 1 }