1 # Copyright (C) 1999, 2001, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
2 # 2011 Free Software Foundation, Inc.
4 # This program is free software; you can redistribute it and/or modify
5 # it under the terms of the GNU General Public License as published by
6 # the Free Software Foundation; either version 3 of the License, or
7 # (at your option) any later version.
9 # This program is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 # GNU General Public License for more details.
14 # You should have received a copy of the GNU General Public License
15 # along with GCC; see the file COPYING3. If not see
16 # <http://www.gnu.org/licenses/>.
18 # Please email any bugs, comments, and/or additions to this file to:
19 # gcc-patches@gcc.gnu.org
21 # This file defines procs for determining features supported by the target.
23 # Try to compile the code given by CONTENTS into an output file of
24 # type TYPE, where TYPE is as for target_compile. Return a list
25 # whose first element contains the compiler messages and whose
26 # second element is the name of the output file.
28 # BASENAME is a prefix to use for source and output files.
29 # If ARGS is not empty, its first element is a string that
30 # should be added to the command line.
32 # Assume by default that CONTENTS is C code.
33 # Otherwise, code should contain:
35 # "! Fortran" for Fortran code,
37 # "// ObjC++" for ObjC++
39 # If the tool is ObjC/ObjC++ then we overide the extension to .m/.mm to
40 # allow for ObjC/ObjC++ specific flags.
41 proc check_compile {basename type contents args} {
43 verbose "check_compile tool: $tool for $basename"
45 if { [llength $args] > 0 } {
46 set options [list "additional_flags=[lindex $args 0]"]
50 switch -glob -- $contents {
51 "*! Fortran*" { set src ${basename}[pid].f90 }
52 "*// C++*" { set src ${basename}[pid].cc }
53 "*// ObjC++*" { set src ${basename}[pid].mm }
54 "*/* ObjC*" { set src ${basename}[pid].m }
55 "*// Go*" { set src ${basename}[pid].go }
58 "objc" { set src ${basename}[pid].m }
59 "obj-c++" { set src ${basename}[pid].mm }
60 default { set src ${basename}[pid].c }
65 set compile_type $type
67 assembly { set output ${basename}[pid].s }
68 object { set output ${basename}[pid].o }
69 executable { set output ${basename}[pid].exe }
71 set output ${basename}[pid].s
72 lappend options "additional_flags=-fdump-$type"
73 set compile_type assembly
79 set lines [${tool}_target_compile $src $output $compile_type "$options"]
82 set scan_output $output
83 # Don't try folding this into the switch above; calling "glob" before the
84 # file is created won't work.
85 if [regexp "rtl-(.*)" $type dummy rtl_type] {
86 set scan_output "[glob $src.\[0-9\]\[0-9\]\[0-9\]r.$rtl_type]"
90 return [list $lines $scan_output]
93 proc current_target_name { } {
95 if [info exists target_info(target,name)] {
96 set answer $target_info(target,name)
103 # Implement an effective-target check for property PROP by invoking
104 # the Tcl command ARGS and seeing if it returns true.
106 proc check_cached_effective_target { prop args } {
109 set target [current_target_name]
110 if {![info exists et_cache($prop,target)]
111 || $et_cache($prop,target) != $target} {
112 verbose "check_cached_effective_target $prop: checking $target" 2
113 set et_cache($prop,target) $target
114 set et_cache($prop,value) [uplevel eval $args]
116 set value $et_cache($prop,value)
117 verbose "check_cached_effective_target $prop: returning $value for $target" 2
121 # Like check_compile, but delete the output file and return true if the
122 # compiler printed no messages.
123 proc check_no_compiler_messages_nocache {args} {
124 set result [eval check_compile $args]
125 set lines [lindex $result 0]
126 set output [lindex $result 1]
127 remote_file build delete $output
128 return [string match "" $lines]
131 # Like check_no_compiler_messages_nocache, but cache the result.
132 # PROP is the property we're checking, and doubles as a prefix for
133 # temporary filenames.
134 proc check_no_compiler_messages {prop args} {
135 return [check_cached_effective_target $prop {
136 eval [list check_no_compiler_messages_nocache $prop] $args
140 # Like check_compile, but return true if the compiler printed no
141 # messages and if the contents of the output file satisfy PATTERN.
142 # If PATTERN has the form "!REGEXP", the contents satisfy it if they
143 # don't match regular expression REGEXP, otherwise they satisfy it
144 # if they do match regular expression PATTERN. (PATTERN can start
145 # with something like "[!]" if the regular expression needs to match
146 # "!" as the first character.)
148 # Delete the output file before returning. The other arguments are
149 # as for check_compile.
150 proc check_no_messages_and_pattern_nocache {basename pattern args} {
153 set result [eval [list check_compile $basename] $args]
154 set lines [lindex $result 0]
155 set output [lindex $result 1]
158 if { [string match "" $lines] } {
159 set chan [open "$output"]
160 set invert [regexp {^!(.*)} $pattern dummy pattern]
161 set ok [expr { [regexp $pattern [read $chan]] != $invert }]
165 remote_file build delete $output
169 # Like check_no_messages_and_pattern_nocache, but cache the result.
170 # PROP is the property we're checking, and doubles as a prefix for
171 # temporary filenames.
172 proc check_no_messages_and_pattern {prop pattern args} {
173 return [check_cached_effective_target $prop {
174 eval [list check_no_messages_and_pattern_nocache $prop $pattern] $args
178 # Try to compile and run an executable from code CONTENTS. Return true
179 # if the compiler reports no messages and if execution "passes" in the
180 # usual DejaGNU sense. The arguments are as for check_compile, with
181 # TYPE implicitly being "executable".
182 proc check_runtime_nocache {basename contents args} {
185 set result [eval [list check_compile $basename executable $contents] $args]
186 set lines [lindex $result 0]
187 set output [lindex $result 1]
190 if { [string match "" $lines] } {
191 # No error messages, everything is OK.
192 set result [remote_load target "./$output" "" ""]
193 set status [lindex $result 0]
194 verbose "check_runtime_nocache $basename: status is <$status>" 2
195 if { $status == "pass" } {
199 remote_file build delete $output
203 # Like check_runtime_nocache, but cache the result. PROP is the
204 # property we're checking, and doubles as a prefix for temporary
206 proc check_runtime {prop args} {
209 return [check_cached_effective_target $prop {
210 eval [list check_runtime_nocache $prop] $args
214 ###############################
215 # proc check_weak_available { }
216 ###############################
218 # weak symbols are only supported in some configs/object formats
219 # this proc returns 1 if they're supported, 0 if they're not, or -1 if unsure
221 proc check_weak_available { } {
224 # All mips targets should support it
226 if { [ string first "mips" $target_cpu ] >= 0 } {
230 # All solaris2 targets should support it
232 if { [istarget *-*-solaris2*] } {
236 # DEC OSF/1/Digital UNIX/Tru64 UNIX supports it
238 if { [istarget alpha*-dec-osf*] } {
242 # Windows targets Cygwin and MingW32 support it
244 if { [istarget *-*-cygwin*] || [istarget *-*-mingw*] } {
248 # HP-UX 10.X doesn't support it
250 if { [istarget hppa*-*-hpux10*] } {
254 # ELF and ECOFF support it. a.out does with gas/gld but may also with
255 # other linkers, so we should try it
257 set objformat [gcc_target_object_format]
265 unknown { return -1 }
270 ###############################
271 # proc check_weak_override_available { }
272 ###############################
274 # Like check_weak_available, but return 0 if weak symbol definitions
275 # cannot be overridden.
277 proc check_weak_override_available { } {
278 if { [istarget *-*-mingw*] } {
281 return [check_weak_available]
284 ###############################
285 # proc check_visibility_available { what_kind }
286 ###############################
288 # The visibility attribute is only support in some object formats
289 # This proc returns 1 if it is supported, 0 if not.
290 # The argument is the kind of visibility, default/protected/hidden/internal.
292 proc check_visibility_available { what_kind } {
293 if [string match "" $what_kind] { set what_kind "hidden" }
295 return [check_no_compiler_messages visibility_available_$what_kind object "
296 void f() __attribute__((visibility(\"$what_kind\")));
301 ###############################
302 # proc check_alias_available { }
303 ###############################
305 # Determine if the target toolchain supports the alias attribute.
307 # Returns 2 if the target supports aliases. Returns 1 if the target
308 # only supports weak aliased. Returns 0 if the target does not
309 # support aliases at all. Returns -1 if support for aliases could not
312 proc check_alias_available { } {
313 global alias_available_saved
316 if [info exists alias_available_saved] {
317 verbose "check_alias_available returning saved $alias_available_saved" 2
321 verbose "check_alias_available compiling testfile $src" 2
322 set f [open $src "w"]
323 # Compile a small test program. The definition of "g" is
324 # necessary to keep the Solaris assembler from complaining
326 puts $f "#ifdef __cplusplus\nextern \"C\"\n#endif\n"
327 puts $f "void g() {} void f() __attribute__((alias(\"g\")));"
329 set lines [${tool}_target_compile $src $obj object ""]
331 remote_file build delete $obj
333 if [string match "" $lines] then {
334 # No error messages, everything is OK.
335 set alias_available_saved 2
337 if [regexp "alias definitions not supported" $lines] {
338 verbose "check_alias_available target does not support aliases" 2
340 set objformat [gcc_target_object_format]
342 if { $objformat == "elf" } {
343 verbose "check_alias_available but target uses ELF format, so it ought to" 2
344 set alias_available_saved -1
346 set alias_available_saved 0
349 if [regexp "only weak aliases are supported" $lines] {
350 verbose "check_alias_available target supports only weak aliases" 2
351 set alias_available_saved 1
353 set alias_available_saved -1
358 verbose "check_alias_available returning $alias_available_saved" 2
361 return $alias_available_saved
364 # Returns 1 if the target toolchain supports ifunc, 0 otherwise.
366 proc check_ifunc_available { } {
367 return [check_no_compiler_messages ifunc_available object {
372 void f() __attribute__((ifunc("g")));
376 # Returns true if --gc-sections is supported on the target.
378 proc check_gc_sections_available { } {
379 global gc_sections_available_saved
382 if {![info exists gc_sections_available_saved]} {
383 # Some targets don't support gc-sections despite whatever's
384 # advertised by ld's options.
385 if { [istarget alpha*-*-*]
386 || [istarget ia64-*-*] } {
387 set gc_sections_available_saved 0
391 # elf2flt uses -q (--emit-relocs), which is incompatible with
393 if { [board_info target exists ldflags]
394 && [regexp " -elf2flt\[ =\]" " [board_info target ldflags] "] } {
395 set gc_sections_available_saved 0
399 # VxWorks kernel modules are relocatable objects linked with -r,
400 # while RTP executables are linked with -q (--emit-relocs).
401 # Both of these options are incompatible with --gc-sections.
402 if { [istarget *-*-vxworks*] } {
403 set gc_sections_available_saved 0
407 # Check if the ld used by gcc supports --gc-sections.
408 set gcc_spec [${tool}_target_compile "-dumpspecs" "" "none" ""]
409 regsub ".*\n\\*linker:\[ \t\]*\n(\[^ \t\n\]*).*" "$gcc_spec" {\1} linker
410 set gcc_ld [lindex [${tool}_target_compile "-print-prog-name=$linker" "" "none" ""] 0]
411 set ld_output [remote_exec host "$gcc_ld" "--help"]
412 if { [ string first "--gc-sections" $ld_output ] >= 0 } {
413 set gc_sections_available_saved 1
415 set gc_sections_available_saved 0
418 return $gc_sections_available_saved
421 # Return 1 if according to target_info struct and explicit target list
422 # target is supposed to support trampolines.
424 proc check_effective_target_trampolines { } {
425 if [target_info exists no_trampolines] {
428 if { [istarget avr-*-*]
429 || [istarget hppa2.0w-hp-hpux11.23]
430 || [istarget hppa64-hp-hpux11.23] } {
436 # Return 1 if according to target_info struct and explicit target list
437 # target is supposed to keep null pointer checks. This could be due to
438 # use of option fno-delete-null-pointer-checks or hardwired in target.
440 proc check_effective_target_keeps_null_pointer_checks { } {
441 if [target_info exists keeps_null_pointer_checks] {
444 if { [istarget avr-*-*] } {
450 # Return true if profiling is supported on the target.
452 proc check_profiling_available { test_what } {
453 global profiling_available_saved
455 verbose "Profiling argument is <$test_what>" 1
457 # These conditions depend on the argument so examine them before
458 # looking at the cache variable.
460 # Tree profiling requires TLS runtime support.
461 if { $test_what == "-fprofile-generate" } {
462 if { ![check_effective_target_tls_runtime] } {
467 # Support for -p on solaris2 relies on mcrt1.o which comes with the
468 # vendor compiler. We cannot reliably predict the directory where the
469 # vendor compiler (and thus mcrt1.o) is installed so we can't
470 # necessarily find mcrt1.o even if we have it.
471 if { [istarget *-*-solaris2*] && $test_what == "-p" } {
475 # Support for -p on irix relies on libprof1.a which doesn't appear to
476 # exist on any irix6 system currently posting testsuite results.
477 # Support for -pg on irix relies on gcrt1.o which doesn't exist yet.
478 # See: http://gcc.gnu.org/ml/gcc/2002-10/msg00169.html
479 if { [istarget mips*-*-irix*]
480 && ($test_what == "-p" || $test_what == "-pg") } {
484 # We don't yet support profiling for MIPS16.
485 if { [istarget mips*-*-*]
486 && ![check_effective_target_nomips16]
487 && ($test_what == "-p" || $test_what == "-pg") } {
491 # MinGW does not support -p.
492 if { [istarget *-*-mingw*] && $test_what == "-p" } {
496 # cygwin does not support -p.
497 if { [istarget *-*-cygwin*] && $test_what == "-p" } {
501 # uClibc does not have gcrt1.o.
502 if { [check_effective_target_uclibc]
503 && ($test_what == "-p" || $test_what == "-pg") } {
507 # Now examine the cache variable.
508 if {![info exists profiling_available_saved]} {
509 # Some targets don't have any implementation of __bb_init_func or are
510 # missing other needed machinery.
511 if { [istarget am3*-*-linux*]
512 || [istarget arm*-*-eabi*]
513 || [istarget arm*-*-elf]
514 || [istarget arm*-*-symbianelf*]
515 || [istarget avr-*-*]
516 || [istarget bfin-*-*]
517 || [istarget cris-*-*]
518 || [istarget crisv32-*-*]
519 || [istarget fido-*-elf]
520 || [istarget h8300-*-*]
521 || [istarget lm32-*-*]
522 || [istarget m32c-*-elf]
523 || [istarget m68k-*-elf]
524 || [istarget m68k-*-uclinux*]
525 || [istarget mep-*-elf]
526 || [istarget mips*-*-elf*]
527 || [istarget mmix-*-*]
528 || [istarget mn10300-*-elf*]
529 || [istarget moxie-*-elf*]
530 || [istarget picochip-*-*]
531 || [istarget powerpc-*-eabi*]
532 || [istarget powerpc-*-elf]
534 || [istarget tic6x-*-elf]
535 || [istarget xstormy16-*]
536 || [istarget xtensa*-*-elf]
537 || [istarget *-*-rtems*]
538 || [istarget *-*-vxworks*] } {
539 set profiling_available_saved 0
541 set profiling_available_saved 1
545 return $profiling_available_saved
548 # Check to see if a target is "freestanding". This is as per the definition
549 # in Section 4 of C99 standard. Effectively, it is a target which supports no
550 # extra headers or libraries other than what is considered essential.
551 proc check_effective_target_freestanding { } {
552 if { [istarget picochip-*-*] } then {
559 # Return 1 if target has packed layout of structure members by
560 # default, 0 otherwise. Note that this is slightly different than
561 # whether the target has "natural alignment": both attributes may be
564 proc check_effective_target_default_packed { } {
565 return [check_no_compiler_messages default_packed assembly {
566 struct x { char a; long b; } c;
567 int s[sizeof (c) == sizeof (char) + sizeof (long) ? 1 : -1];
571 # Return 1 if target has PCC_BITFIELD_TYPE_MATTERS defined. See
572 # documentation, where the test also comes from.
574 proc check_effective_target_pcc_bitfield_type_matters { } {
575 # PCC_BITFIELD_TYPE_MATTERS isn't just about unnamed or empty
576 # bitfields, but let's stick to the example code from the docs.
577 return [check_no_compiler_messages pcc_bitfield_type_matters assembly {
578 struct foo1 { char x; char :0; char y; };
579 struct foo2 { char x; int :0; char y; };
580 int s[sizeof (struct foo1) != sizeof (struct foo2) ? 1 : -1];
584 # Add to FLAGS all the target-specific flags needed to use thread-local storage.
586 proc add_options_for_tls { flags } {
587 # Tru64 UNIX uses emutls, which relies on a couple of pthread functions
588 # which only live in libpthread, so always pass -pthread for TLS.
589 if { [istarget alpha*-dec-osf*] } {
590 return "$flags -pthread"
592 # On Solaris 8 and 9, __tls_get_addr/___tls_get_addr only lives in
593 # libthread, so always pass -pthread for native TLS.
594 # Need to duplicate native TLS check from
595 # check_effective_target_tls_native to avoid recursion.
596 if { [istarget *-*-solaris2.\[89\]*] &&
597 [check_no_messages_and_pattern tls_native "!emutls" assembly {
599 int f (void) { return i; }
600 void g (int j) { i = j; }
602 return "$flags -pthread"
607 # Return 1 if thread local storage (TLS) is supported, 0 otherwise.
609 proc check_effective_target_tls {} {
610 return [check_no_compiler_messages tls assembly {
612 int f (void) { return i; }
613 void g (int j) { i = j; }
617 # Return 1 if *native* thread local storage (TLS) is supported, 0 otherwise.
619 proc check_effective_target_tls_native {} {
620 # VxWorks uses emulated TLS machinery, but with non-standard helper
621 # functions, so we fail to automatically detect it.
622 if { [istarget *-*-vxworks*] } {
626 return [check_no_messages_and_pattern tls_native "!emutls" assembly {
628 int f (void) { return i; }
629 void g (int j) { i = j; }
633 # Return 1 if *emulated* thread local storage (TLS) is supported, 0 otherwise.
635 proc check_effective_target_tls_emulated {} {
636 # VxWorks uses emulated TLS machinery, but with non-standard helper
637 # functions, so we fail to automatically detect it.
638 if { [istarget *-*-vxworks*] } {
642 return [check_no_messages_and_pattern tls_emulated "emutls" assembly {
644 int f (void) { return i; }
645 void g (int j) { i = j; }
649 # Return 1 if TLS executables can run correctly, 0 otherwise.
651 proc check_effective_target_tls_runtime {} {
652 return [check_runtime tls_runtime {
653 __thread int thr = 0;
654 int main (void) { return thr; }
655 } [add_options_for_tls ""]]
658 # Return 1 if atomic compare-and-swap is supported on 'int'
660 proc check_effective_target_cas_char {} {
661 return [check_no_compiler_messages cas_char assembly {
662 #ifndef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_1
668 proc check_effective_target_cas_int {} {
669 return [check_no_compiler_messages cas_int assembly {
670 #if __INT_MAX__ == 0x7fff && __GCC_HAVE_SYNC_COMPARE_AND_SWAP_2
672 #elif __INT_MAX__ == 0x7fffffff && __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4
680 # Return 1 if -ffunction-sections is supported, 0 otherwise.
682 proc check_effective_target_function_sections {} {
683 # Darwin has its own scheme and silently accepts -ffunction-sections.
684 if { [istarget *-*-darwin*] } {
688 return [check_no_compiler_messages functionsections assembly {
690 } "-ffunction-sections"]
693 # Return 1 if instruction scheduling is available, 0 otherwise.
695 proc check_effective_target_scheduling {} {
696 return [check_no_compiler_messages scheduling object {
698 } "-fschedule-insns"]
701 # Return 1 if compilation with -fgraphite is error-free for trivial
704 proc check_effective_target_fgraphite {} {
705 return [check_no_compiler_messages fgraphite object {
710 # Return 1 if compilation with -fopenmp is error-free for trivial
713 proc check_effective_target_fopenmp {} {
714 return [check_no_compiler_messages fopenmp object {
719 # Return 1 if the target supports mmap, 0 otherwise.
721 proc check_effective_target_mmap {} {
722 return [check_function_available "mmap"]
725 # Return 1 if compilation with -pthread is error-free for trivial
728 proc check_effective_target_pthread {} {
729 return [check_no_compiler_messages pthread object {
734 # Return 1 if compilation with -mpe-aligned-commons is error-free
735 # for trivial code, 0 otherwise.
737 proc check_effective_target_pe_aligned_commons {} {
738 if { [istarget *-*-cygwin*] || [istarget *-*-mingw*] } {
739 return [check_no_compiler_messages pe_aligned_commons object {
741 } "-mpe-aligned-commons"]
746 # Return 1 if the target supports -static
747 proc check_effective_target_static {} {
748 return [check_no_compiler_messages static executable {
749 int main (void) { return 0; }
753 # Return 1 if the target supports -fstack-protector
754 proc check_effective_target_fstack_protector {} {
755 return [check_runtime fstack_protector {
756 int main (void) { return 0; }
757 } "-fstack-protector"]
760 # Return 1 if compilation with -freorder-blocks-and-partition is error-free
761 # for trivial code, 0 otherwise.
763 proc check_effective_target_freorder {} {
764 return [check_no_compiler_messages freorder object {
766 } "-freorder-blocks-and-partition"]
769 # Return 1 if -fpic and -fPIC are supported, as in no warnings or errors
770 # emitted, 0 otherwise. Whether a shared library can actually be built is
771 # out of scope for this test.
773 proc check_effective_target_fpic { } {
774 # Note that M68K has a multilib that supports -fpic but not
775 # -fPIC, so we need to check both. We test with a program that
776 # requires GOT references.
777 foreach arg {fpic fPIC} {
778 if [check_no_compiler_messages $arg object {
779 extern int foo (void); extern int bar;
780 int baz (void) { return foo () + bar; }
788 # Return 1 if -pie, -fpie and -fPIE are supported, 0 otherwise.
790 proc check_effective_target_pie { } {
791 if { [istarget *-*-darwin\[912\]*]
792 || [istarget *-*-linux*] } {
798 # Return true if the target supports -mpaired-single (as used on MIPS).
800 proc check_effective_target_mpaired_single { } {
801 return [check_no_compiler_messages mpaired_single object {
806 # Return true if the target has access to FPU instructions.
808 proc check_effective_target_hard_float { } {
809 if { [istarget mips*-*-*] } {
810 return [check_no_compiler_messages hard_float assembly {
811 #if (defined __mips_soft_float || defined __mips16)
817 # This proc is actually checking the availabilty of FPU
818 # support for doubles, so on the RX we must fail if the
819 # 64-bit double multilib has been selected.
820 if { [istarget rx-*-*] } {
822 # return [check_no_compiler_messages hard_float assembly {
823 #if defined __RX_64_BIT_DOUBLES__
829 # The generic test equates hard_float with "no call for adding doubles".
830 return [check_no_messages_and_pattern hard_float "!\\(call" rtl-expand {
831 double a (double b, double c) { return b + c; }
835 # Return true if the target is a 64-bit MIPS target.
837 proc check_effective_target_mips64 { } {
838 return [check_no_compiler_messages mips64 assembly {
845 # Return true if the target is a MIPS target that does not produce
848 proc check_effective_target_nomips16 { } {
849 return [check_no_compiler_messages nomips16 object {
853 /* A cheap way of testing for -mflip-mips16. */
854 void foo (void) { asm ("addiu $20,$20,1"); }
855 void bar (void) { asm ("addiu $20,$20,1"); }
860 # Add the options needed for MIPS16 function attributes. At the moment,
861 # we don't support MIPS16 PIC.
863 proc add_options_for_mips16_attribute { flags } {
864 return "$flags -mno-abicalls -fno-pic -DMIPS16=__attribute__((mips16))"
867 # Return true if we can force a mode that allows MIPS16 code generation.
868 # We don't support MIPS16 PIC, and only support MIPS16 -mhard-float
871 proc check_effective_target_mips16_attribute { } {
872 return [check_no_compiler_messages mips16_attribute assembly {
876 #if defined __mips_hard_float \
877 && (!defined _ABIO32 || _MIPS_SIM != _ABIO32) \
878 && (!defined _ABIO64 || _MIPS_SIM != _ABIO64)
881 } [add_options_for_mips16_attribute ""]]
884 # Return 1 if the target supports long double larger than double when
885 # using the new ABI, 0 otherwise.
887 proc check_effective_target_mips_newabi_large_long_double { } {
888 return [check_no_compiler_messages mips_newabi_large_long_double object {
889 int dummy[sizeof(long double) > sizeof(double) ? 1 : -1];
893 # Return 1 if the current multilib does not generate PIC by default.
895 proc check_effective_target_nonpic { } {
896 return [check_no_compiler_messages nonpic assembly {
903 # Return 1 if the target does not use a status wrapper.
905 proc check_effective_target_unwrapped { } {
906 if { [target_info needs_status_wrapper] != "" \
907 && [target_info needs_status_wrapper] != "0" } {
913 # Return true if iconv is supported on the target. In particular IBM1047.
915 proc check_iconv_available { test_what } {
918 # If the tool configuration file has not set libiconv, try "-liconv"
919 if { ![info exists libiconv] } {
920 set libiconv "-liconv"
922 set test_what [lindex $test_what 1]
923 return [check_runtime_nocache $test_what [subst {
929 cd = iconv_open ("$test_what", "UTF-8");
930 if (cd == (iconv_t) -1)
937 # Return 1 if an ASCII locale is supported on this host, 0 otherwise.
939 proc check_ascii_locale_available { } {
940 if { ([ishost alpha*-dec-osf*] || [ishost mips-sgi-irix*]) } {
941 # Neither Tru64 UNIX nor IRIX support an ASCII locale.
948 # Return true if named sections are supported on this target.
950 proc check_named_sections_available { } {
951 return [check_no_compiler_messages named_sections assembly {
952 int __attribute__ ((section("whatever"))) foo;
956 # Return 1 if the target supports Fortran real kinds larger than real(8),
959 # When the target name changes, replace the cached result.
961 proc check_effective_target_fortran_large_real { } {
962 return [check_no_compiler_messages fortran_large_real executable {
964 integer,parameter :: k = selected_real_kind (precision (0.0_8) + 1)
971 # Return 1 if the target supports Fortran real kind real(16),
972 # 0 otherwise. Contrary to check_effective_target_fortran_large_real
973 # this checks for Real(16) only; the other returned real(10) if
974 # both real(10) and real(16) are available.
976 # When the target name changes, replace the cached result.
978 proc check_effective_target_fortran_real_16 { } {
979 return [check_no_compiler_messages fortran_real_16 executable {
987 # Return 1 if the target supports Fortran integer kinds larger than
988 # integer(8), 0 otherwise.
990 # When the target name changes, replace the cached result.
992 proc check_effective_target_fortran_large_int { } {
993 return [check_no_compiler_messages fortran_large_int executable {
995 integer,parameter :: k = selected_int_kind (range (0_8) + 1)
1001 # Return 1 if the target supports Fortran integer(16), 0 otherwise.
1003 # When the target name changes, replace the cached result.
1005 proc check_effective_target_fortran_integer_16 { } {
1006 return [check_no_compiler_messages fortran_integer_16 executable {
1013 # Return 1 if we can statically link libgfortran, 0 otherwise.
1015 # When the target name changes, replace the cached result.
1017 proc check_effective_target_static_libgfortran { } {
1018 return [check_no_compiler_messages static_libgfortran executable {
1025 proc check_linker_plugin_available { } {
1026 return [check_no_compiler_messages_nocache linker_plugin executable {
1027 int main() { return 0; }
1028 } "-flto -fuse-linker-plugin"]
1031 # Return 1 if the target supports executing 750CL paired-single instructions, 0
1032 # otherwise. Cache the result.
1034 proc check_750cl_hw_available { } {
1035 return [check_cached_effective_target 750cl_hw_available {
1036 # If this is not the right target then we can skip the test.
1037 if { ![istarget powerpc-*paired*] } {
1040 check_runtime_nocache 750cl_hw_available {
1044 asm volatile ("ps_mul v0,v0,v0");
1046 asm volatile ("ps_mul 0,0,0");
1055 # Return 1 if the target OS supports running SSE executables, 0
1056 # otherwise. Cache the result.
1058 proc check_sse_os_support_available { } {
1059 return [check_cached_effective_target sse_os_support_available {
1060 # If this is not the right target then we can skip the test.
1061 if { !([istarget x86_64-*-*] || [istarget i?86-*-*]) } {
1063 } elseif { [istarget i?86-*-solaris2*] } {
1064 # The Solaris 2 kernel doesn't save and restore SSE registers
1065 # before Solaris 9 4/04. Before that, executables die with SIGILL.
1066 check_runtime_nocache sse_os_support_available {
1069 asm volatile ("movaps %xmm0,%xmm0");
1079 # Return 1 if the target OS supports running AVX executables, 0
1080 # otherwise. Cache the result.
1082 proc check_avx_os_support_available { } {
1083 return [check_cached_effective_target avx_os_support_available {
1084 # If this is not the right target then we can skip the test.
1085 if { !([istarget x86_64-*-*] || [istarget i?86-*-*]) } {
1088 # Check that OS has AVX and SSE saving enabled.
1089 check_runtime_nocache avx_os_support_available {
1092 unsigned int eax, edx;
1094 asm ("xgetbv" : "=a" (eax), "=d" (edx) : "c" (0));
1095 return (eax & 6) != 6;
1102 # Return 1 if the target supports executing SSE instructions, 0
1103 # otherwise. Cache the result.
1105 proc check_sse_hw_available { } {
1106 return [check_cached_effective_target sse_hw_available {
1107 # If this is not the right target then we can skip the test.
1108 if { !([istarget x86_64-*-*] || [istarget i?86-*-*]) } {
1111 check_runtime_nocache sse_hw_available {
1115 unsigned int eax, ebx, ecx, edx;
1116 if (__get_cpuid (1, &eax, &ebx, &ecx, &edx))
1117 return !(edx & bit_SSE);
1125 # Return 1 if the target supports executing SSE2 instructions, 0
1126 # otherwise. Cache the result.
1128 proc check_sse2_hw_available { } {
1129 return [check_cached_effective_target sse2_hw_available {
1130 # If this is not the right target then we can skip the test.
1131 if { !([istarget x86_64-*-*] || [istarget i?86-*-*]) } {
1134 check_runtime_nocache sse2_hw_available {
1138 unsigned int eax, ebx, ecx, edx;
1139 if (__get_cpuid (1, &eax, &ebx, &ecx, &edx))
1140 return !(edx & bit_SSE2);
1148 # Return 1 if the target supports executing AVX instructions, 0
1149 # otherwise. Cache the result.
1151 proc check_avx_hw_available { } {
1152 return [check_cached_effective_target avx_hw_available {
1153 # If this is not the right target then we can skip the test.
1154 if { !([istarget x86_64-*-*] || [istarget i?86-*-*]) } {
1157 check_runtime_nocache avx_hw_available {
1161 unsigned int eax, ebx, ecx, edx;
1162 if (__get_cpuid (1, &eax, &ebx, &ecx, &edx))
1163 return ((ecx & (bit_AVX | bit_OSXSAVE))
1164 != (bit_AVX | bit_OSXSAVE));
1172 # Return 1 if the target supports running SSE executables, 0 otherwise.
1174 proc check_effective_target_sse_runtime { } {
1175 if { [check_effective_target_sse]
1176 && [check_sse_hw_available]
1177 && [check_sse_os_support_available] } {
1183 # Return 1 if the target supports running SSE2 executables, 0 otherwise.
1185 proc check_effective_target_sse2_runtime { } {
1186 if { [check_effective_target_sse2]
1187 && [check_sse2_hw_available]
1188 && [check_sse_os_support_available] } {
1194 # Return 1 if the target supports running AVX executables, 0 otherwise.
1196 proc check_effective_target_avx_runtime { } {
1197 if { [check_effective_target_avx]
1198 && [check_avx_hw_available]
1199 && [check_avx_os_support_available] } {
1205 # Return 1 if the target supports executing VSX instructions, 0
1206 # otherwise. Cache the result.
1208 proc check_vsx_hw_available { } {
1209 return [check_cached_effective_target vsx_hw_available {
1210 # Some simulators are known to not support VSX instructions.
1211 # For now, disable on Darwin
1212 if { [istarget powerpc-*-eabi] || [istarget powerpc*-*-eabispe] || [istarget *-*-darwin*]} {
1216 check_runtime_nocache vsx_hw_available {
1220 asm volatile ("xxlor vs0,vs0,vs0");
1222 asm volatile ("xxlor 0,0,0");
1231 # Return 1 if the target supports executing AltiVec instructions, 0
1232 # otherwise. Cache the result.
1234 proc check_vmx_hw_available { } {
1235 return [check_cached_effective_target vmx_hw_available {
1236 # Some simulators are known to not support VMX instructions.
1237 if { [istarget powerpc-*-eabi] || [istarget powerpc*-*-eabispe] } {
1240 # Most targets don't require special flags for this test case, but
1241 # Darwin does. Just to be sure, make sure VSX is not enabled for
1242 # the altivec tests.
1243 if { [istarget *-*-darwin*]
1244 || [istarget *-*-aix*] } {
1245 set options "-maltivec -mno-vsx"
1247 set options "-mno-vsx"
1249 check_runtime_nocache vmx_hw_available {
1253 asm volatile ("vor v0,v0,v0");
1255 asm volatile ("vor 0,0,0");
1264 proc check_ppc_recip_hw_available { } {
1265 return [check_cached_effective_target ppc_recip_hw_available {
1266 # Some simulators may not support FRE/FRES/FRSQRTE/FRSQRTES
1267 # For now, disable on Darwin
1268 if { [istarget powerpc-*-eabi] || [istarget powerpc*-*-eabispe] || [istarget *-*-darwin*]} {
1271 set options "-mpowerpc-gfxopt -mpowerpc-gpopt -mpopcntb"
1272 check_runtime_nocache ppc_recip_hw_available {
1273 volatile double d_recip, d_rsqrt, d_four = 4.0;
1274 volatile float f_recip, f_rsqrt, f_four = 4.0f;
1277 asm volatile ("fres %0,%1" : "=f" (f_recip) : "f" (f_four));
1278 asm volatile ("fre %0,%1" : "=d" (d_recip) : "d" (d_four));
1279 asm volatile ("frsqrtes %0,%1" : "=f" (f_rsqrt) : "f" (f_four));
1280 asm volatile ("frsqrte %0,%1" : "=f" (d_rsqrt) : "d" (d_four));
1288 # Return 1 if the target supports executing AltiVec and Cell PPU
1289 # instructions, 0 otherwise. Cache the result.
1291 proc check_effective_target_cell_hw { } {
1292 return [check_cached_effective_target cell_hw_available {
1293 # Some simulators are known to not support VMX and PPU instructions.
1294 if { [istarget powerpc-*-eabi*] } {
1297 # Most targets don't require special flags for this test
1298 # case, but Darwin and AIX do.
1299 if { [istarget *-*-darwin*]
1300 || [istarget *-*-aix*] } {
1301 set options "-maltivec -mcpu=cell"
1303 set options "-mcpu=cell"
1305 check_runtime_nocache cell_hw_available {
1309 asm volatile ("vor v0,v0,v0");
1310 asm volatile ("lvlx v0,r0,r0");
1312 asm volatile ("vor 0,0,0");
1313 asm volatile ("lvlx 0,0,0");
1322 # Return 1 if the target supports executing 64-bit instructions, 0
1323 # otherwise. Cache the result.
1325 proc check_effective_target_powerpc64 { } {
1326 global powerpc64_available_saved
1329 if [info exists powerpc64_available_saved] {
1330 verbose "check_effective_target_powerpc64 returning saved $powerpc64_available_saved" 2
1332 set powerpc64_available_saved 0
1334 # Some simulators are known to not support powerpc64 instructions.
1335 if { [istarget powerpc-*-eabi*] || [istarget powerpc-ibm-aix*] } {
1336 verbose "check_effective_target_powerpc64 returning 0" 2
1337 return $powerpc64_available_saved
1340 # Set up, compile, and execute a test program containing a 64-bit
1341 # instruction. Include the current process ID in the file
1342 # names to prevent conflicts with invocations for multiple
1347 set f [open $src "w"]
1348 puts $f "int main() {"
1349 puts $f "#ifdef __MACH__"
1350 puts $f " asm volatile (\"extsw r0,r0\");"
1352 puts $f " asm volatile (\"extsw 0,0\");"
1354 puts $f " return 0; }"
1357 set opts "additional_flags=-mcpu=G5"
1359 verbose "check_effective_target_powerpc64 compiling testfile $src" 2
1360 set lines [${tool}_target_compile $src $exe executable "$opts"]
1363 if [string match "" $lines] then {
1364 # No error message, compilation succeeded.
1365 set result [${tool}_load "./$exe" "" ""]
1366 set status [lindex $result 0]
1367 remote_file build delete $exe
1368 verbose "check_effective_target_powerpc64 testfile status is <$status>" 2
1370 if { $status == "pass" } then {
1371 set powerpc64_available_saved 1
1374 verbose "check_effective_target_powerpc64 testfile compilation failed" 2
1378 return $powerpc64_available_saved
1381 # GCC 3.4.0 for powerpc64-*-linux* included an ABI fix for passing
1382 # complex float arguments. This affects gfortran tests that call cabsf
1383 # in libm built by an earlier compiler. Return 1 if libm uses the same
1384 # argument passing as the compiler under test, 0 otherwise.
1386 # When the target name changes, replace the cached result.
1388 proc check_effective_target_broken_cplxf_arg { } {
1389 return [check_cached_effective_target broken_cplxf_arg {
1390 # Skip the work for targets known not to be affected.
1391 if { ![istarget powerpc64-*-linux*] } {
1393 } elseif { ![is-effective-target lp64] } {
1396 check_runtime_nocache broken_cplxf_arg {
1397 #include <complex.h>
1398 extern void abort (void);
1399 float fabsf (float);
1400 float cabsf (_Complex float);
1407 if (fabsf (f - 5.0) > 0.0001)
1416 # Return 1 is this is a TI C6X target supporting C67X instructions
1417 proc check_effective_target_ti_c67x { } {
1418 return [check_no_compiler_messages ti_c67x assembly {
1419 #if !defined(_TMS320C6700)
1425 # Return 1 is this is a TI C6X target supporting C64X+ instructions
1426 proc check_effective_target_ti_c64xp { } {
1427 return [check_no_compiler_messages ti_c64xp assembly {
1428 #if !defined(_TMS320C6400_PLUS)
1435 proc check_alpha_max_hw_available { } {
1436 return [check_runtime alpha_max_hw_available {
1437 int main() { return __builtin_alpha_amask(1<<8) != 0; }
1441 # Returns true iff the FUNCTION is available on the target system.
1442 # (This is essentially a Tcl implementation of Autoconf's
1445 proc check_function_available { function } {
1446 return [check_no_compiler_messages ${function}_available \
1452 int main () { $function (); }
1456 # Returns true iff "fork" is available on the target system.
1458 proc check_fork_available {} {
1459 return [check_function_available "fork"]
1462 # Returns true iff "mkfifo" is available on the target system.
1464 proc check_mkfifo_available {} {
1465 if { [istarget *-*-cygwin*] } {
1466 # Cygwin has mkfifo, but support is incomplete.
1470 return [check_function_available "mkfifo"]
1473 # Returns true iff "__cxa_atexit" is used on the target system.
1475 proc check_cxa_atexit_available { } {
1476 return [check_cached_effective_target cxa_atexit_available {
1477 if { [istarget hppa*-*-hpux10*] } {
1478 # HP-UX 10 doesn't have __cxa_atexit but subsequent test passes.
1480 } elseif { [istarget *-*-vxworks] } {
1481 # vxworks doesn't have __cxa_atexit but subsequent test passes.
1484 check_runtime_nocache cxa_atexit_available {
1487 static unsigned int count;
1504 Y() { f(); count = 2; }
1513 int main() { return 0; }
1519 proc check_effective_target_objc2 { } {
1520 return [check_no_compiler_messages objc2 object {
1529 proc check_effective_target_next_runtime { } {
1530 return [check_no_compiler_messages objc2 object {
1531 #ifdef __NEXT_RUNTIME__
1539 # Return 1 if we're generating 32-bit code using default options, 0
1542 proc check_effective_target_ilp32 { } {
1543 return [check_no_compiler_messages ilp32 object {
1544 int dummy[sizeof (int) == 4
1545 && sizeof (void *) == 4
1546 && sizeof (long) == 4 ? 1 : -1];
1550 # Return 1 if we're generating ia32 code using default options, 0
1553 proc check_effective_target_ia32 { } {
1554 return [check_no_compiler_messages ia32 object {
1555 int dummy[sizeof (int) == 4
1556 && sizeof (void *) == 4
1557 && sizeof (long) == 4 ? 1 : -1] = { __i386__ };
1561 # Return 1 if we're generating x32 code using default options, 0
1564 proc check_effective_target_x32 { } {
1565 return [check_no_compiler_messages x32 object {
1566 int dummy[sizeof (int) == 4
1567 && sizeof (void *) == 4
1568 && sizeof (long) == 4 ? 1 : -1] = { __x86_64__ };
1572 # Return 1 if we're generating 32-bit or larger integers using default
1573 # options, 0 otherwise.
1575 proc check_effective_target_int32plus { } {
1576 return [check_no_compiler_messages int32plus object {
1577 int dummy[sizeof (int) >= 4 ? 1 : -1];
1581 # Return 1 if we're generating 32-bit or larger pointers using default
1582 # options, 0 otherwise.
1584 proc check_effective_target_ptr32plus { } {
1585 return [check_no_compiler_messages ptr32plus object {
1586 int dummy[sizeof (void *) >= 4 ? 1 : -1];
1590 # Return 1 if we support 32-bit or larger array and structure sizes
1591 # using default options, 0 otherwise.
1593 proc check_effective_target_size32plus { } {
1594 return [check_no_compiler_messages size32plus object {
1599 # Returns 1 if we're generating 16-bit or smaller integers with the
1600 # default options, 0 otherwise.
1602 proc check_effective_target_int16 { } {
1603 return [check_no_compiler_messages int16 object {
1604 int dummy[sizeof (int) < 4 ? 1 : -1];
1608 # Return 1 if we're generating 64-bit code using default options, 0
1611 proc check_effective_target_lp64 { } {
1612 return [check_no_compiler_messages lp64 object {
1613 int dummy[sizeof (int) == 4
1614 && sizeof (void *) == 8
1615 && sizeof (long) == 8 ? 1 : -1];
1619 # Return 1 if we're generating 64-bit code using default llp64 options,
1622 proc check_effective_target_llp64 { } {
1623 return [check_no_compiler_messages llp64 object {
1624 int dummy[sizeof (int) == 4
1625 && sizeof (void *) == 8
1626 && sizeof (long long) == 8
1627 && sizeof (long) == 4 ? 1 : -1];
1631 # Return 1 if the target supports long double larger than double,
1634 proc check_effective_target_large_long_double { } {
1635 return [check_no_compiler_messages large_long_double object {
1636 int dummy[sizeof(long double) > sizeof(double) ? 1 : -1];
1640 # Return 1 if the target supports double larger than float,
1643 proc check_effective_target_large_double { } {
1644 return [check_no_compiler_messages large_double object {
1645 int dummy[sizeof(double) > sizeof(float) ? 1 : -1];
1649 # Return 1 if the target supports double of 64 bits,
1652 proc check_effective_target_double64 { } {
1653 return [check_no_compiler_messages double64 object {
1654 int dummy[sizeof(double) == 8 ? 1 : -1];
1658 # Return 1 if the target supports double of at least 64 bits,
1661 proc check_effective_target_double64plus { } {
1662 return [check_no_compiler_messages double64plus object {
1663 int dummy[sizeof(double) >= 8 ? 1 : -1];
1667 # Return 1 if the target supports compiling fixed-point,
1670 proc check_effective_target_fixed_point { } {
1671 return [check_no_compiler_messages fixed_point object {
1672 _Sat _Fract x; _Sat _Accum y;
1676 # Return 1 if the target supports compiling decimal floating point,
1679 proc check_effective_target_dfp_nocache { } {
1680 verbose "check_effective_target_dfp_nocache: compiling source" 2
1681 set ret [check_no_compiler_messages_nocache dfp object {
1682 float x __attribute__((mode(DD)));
1684 verbose "check_effective_target_dfp_nocache: returning $ret" 2
1688 proc check_effective_target_dfprt_nocache { } {
1689 return [check_runtime_nocache dfprt {
1690 typedef float d64 __attribute__((mode(DD)));
1691 d64 x = 1.2df, y = 2.3dd, z;
1692 int main () { z = x + y; return 0; }
1696 # Return 1 if the target supports compiling Decimal Floating Point,
1699 # This won't change for different subtargets so cache the result.
1701 proc check_effective_target_dfp { } {
1702 return [check_cached_effective_target dfp {
1703 check_effective_target_dfp_nocache
1707 # Return 1 if the target supports linking and executing Decimal Floating
1708 # Point, 0 otherwise.
1710 # This won't change for different subtargets so cache the result.
1712 proc check_effective_target_dfprt { } {
1713 return [check_cached_effective_target dfprt {
1714 check_effective_target_dfprt_nocache
1718 # Return 1 if the target supports compiling and assembling UCN, 0 otherwise.
1720 proc check_effective_target_ucn_nocache { } {
1721 # -std=c99 is only valid for C
1722 if [check_effective_target_c] {
1723 set ucnopts "-std=c99"
1725 append ucnopts " -fextended-identifiers"
1726 verbose "check_effective_target_ucn_nocache: compiling source" 2
1727 set ret [check_no_compiler_messages_nocache ucn object {
1730 verbose "check_effective_target_ucn_nocache: returning $ret" 2
1734 # Return 1 if the target supports compiling and assembling UCN, 0 otherwise.
1736 # This won't change for different subtargets, so cache the result.
1738 proc check_effective_target_ucn { } {
1739 return [check_cached_effective_target ucn {
1740 check_effective_target_ucn_nocache
1744 # Return 1 if the target needs a command line argument to enable a SIMD
1747 proc check_effective_target_vect_cmdline_needed { } {
1748 global et_vect_cmdline_needed_saved
1749 global et_vect_cmdline_needed_target_name
1751 if { ![info exists et_vect_cmdline_needed_target_name] } {
1752 set et_vect_cmdline_needed_target_name ""
1755 # If the target has changed since we set the cached value, clear it.
1756 set current_target [current_target_name]
1757 if { $current_target != $et_vect_cmdline_needed_target_name } {
1758 verbose "check_effective_target_vect_cmdline_needed: `$et_vect_cmdline_needed_target_name' `$current_target'" 2
1759 set et_vect_cmdline_needed_target_name $current_target
1760 if { [info exists et_vect_cmdline_needed_saved] } {
1761 verbose "check_effective_target_vect_cmdline_needed: removing cached result" 2
1762 unset et_vect_cmdline_needed_saved
1766 if [info exists et_vect_cmdline_needed_saved] {
1767 verbose "check_effective_target_vect_cmdline_needed: using cached result" 2
1769 set et_vect_cmdline_needed_saved 1
1770 if { [istarget alpha*-*-*]
1771 || [istarget ia64-*-*]
1772 || (([istarget x86_64-*-*] || [istarget i?86-*-*])
1773 && ([check_effective_target_x32]
1774 || [check_effective_target_lp64]))
1775 || ([istarget powerpc*-*-*]
1776 && ([check_effective_target_powerpc_spe]
1777 || [check_effective_target_powerpc_altivec]))
1778 || [istarget spu-*-*]
1779 || ([istarget arm*-*-*] && [check_effective_target_arm_neon]) } {
1780 set et_vect_cmdline_needed_saved 0
1784 verbose "check_effective_target_vect_cmdline_needed: returning $et_vect_cmdline_needed_saved" 2
1785 return $et_vect_cmdline_needed_saved
1788 # Return 1 if the target supports hardware vectors of int, 0 otherwise.
1790 # This won't change for different subtargets so cache the result.
1792 proc check_effective_target_vect_int { } {
1793 global et_vect_int_saved
1795 if [info exists et_vect_int_saved] {
1796 verbose "check_effective_target_vect_int: using cached result" 2
1798 set et_vect_int_saved 0
1799 if { [istarget i?86-*-*]
1800 || ([istarget powerpc*-*-*]
1801 && ![istarget powerpc-*-linux*paired*])
1802 || [istarget spu-*-*]
1803 || [istarget x86_64-*-*]
1804 || [istarget sparc*-*-*]
1805 || [istarget alpha*-*-*]
1806 || [istarget ia64-*-*]
1807 || [check_effective_target_arm32]
1808 || ([istarget mips*-*-*]
1809 && [check_effective_target_mips_loongson]) } {
1810 set et_vect_int_saved 1
1814 verbose "check_effective_target_vect_int: returning $et_vect_int_saved" 2
1815 return $et_vect_int_saved
1818 # Return 1 if the target supports signed int->float conversion
1821 proc check_effective_target_vect_intfloat_cvt { } {
1822 global et_vect_intfloat_cvt_saved
1824 if [info exists et_vect_intfloat_cvt_saved] {
1825 verbose "check_effective_target_vect_intfloat_cvt: using cached result" 2
1827 set et_vect_intfloat_cvt_saved 0
1828 if { [istarget i?86-*-*]
1829 || ([istarget powerpc*-*-*]
1830 && ![istarget powerpc-*-linux*paired*])
1831 || [istarget x86_64-*-*] } {
1832 set et_vect_intfloat_cvt_saved 1
1836 verbose "check_effective_target_vect_intfloat_cvt: returning $et_vect_intfloat_cvt_saved" 2
1837 return $et_vect_intfloat_cvt_saved
1840 #Return 1 if we're supporting __int128 for target, 0 otherwise.
1842 proc check_effective_target_int128 { } {
1843 return [check_no_compiler_messages int128 object {
1845 #ifndef __SIZEOF_INT128__
1854 # Return 1 if the target supports unsigned int->float conversion
1857 proc check_effective_target_vect_uintfloat_cvt { } {
1858 global et_vect_uintfloat_cvt_saved
1860 if [info exists et_vect_uintfloat_cvt_saved] {
1861 verbose "check_effective_target_vect_uintfloat_cvt: using cached result" 2
1863 set et_vect_uintfloat_cvt_saved 0
1864 if { [istarget i?86-*-*]
1865 || ([istarget powerpc*-*-*]
1866 && ![istarget powerpc-*-linux*paired*])
1867 || [istarget x86_64-*-*] } {
1868 set et_vect_uintfloat_cvt_saved 1
1872 verbose "check_effective_target_vect_uintfloat_cvt: returning $et_vect_uintfloat_cvt_saved" 2
1873 return $et_vect_uintfloat_cvt_saved
1877 # Return 1 if the target supports signed float->int conversion
1880 proc check_effective_target_vect_floatint_cvt { } {
1881 global et_vect_floatint_cvt_saved
1883 if [info exists et_vect_floatint_cvt_saved] {
1884 verbose "check_effective_target_vect_floatint_cvt: using cached result" 2
1886 set et_vect_floatint_cvt_saved 0
1887 if { [istarget i?86-*-*]
1888 || ([istarget powerpc*-*-*]
1889 && ![istarget powerpc-*-linux*paired*])
1890 || [istarget x86_64-*-*] } {
1891 set et_vect_floatint_cvt_saved 1
1895 verbose "check_effective_target_vect_floatint_cvt: returning $et_vect_floatint_cvt_saved" 2
1896 return $et_vect_floatint_cvt_saved
1899 # Return 1 if the target supports unsigned float->int conversion
1902 proc check_effective_target_vect_floatuint_cvt { } {
1903 global et_vect_floatuint_cvt_saved
1905 if [info exists et_vect_floatuint_cvt_saved] {
1906 verbose "check_effective_target_vect_floatuint_cvt: using cached result" 2
1908 set et_vect_floatuint_cvt_saved 0
1909 if { ([istarget powerpc*-*-*]
1910 && ![istarget powerpc-*-linux*paired*]) } {
1911 set et_vect_floatuint_cvt_saved 1
1915 verbose "check_effective_target_vect_floatuint_cvt: returning $et_vect_floatuint_cvt_saved" 2
1916 return $et_vect_floatuint_cvt_saved
1919 # Return 1 is this is an arm target using 32-bit instructions
1920 proc check_effective_target_arm32 { } {
1921 return [check_no_compiler_messages arm32 assembly {
1922 #if !defined(__arm__) || (defined(__thumb__) && !defined(__thumb2__))
1928 # Return 1 is this is an arm target not using Thumb
1929 proc check_effective_target_arm_nothumb { } {
1930 return [check_no_compiler_messages arm_nothumb assembly {
1931 #if (defined(__thumb__) || defined(__thumb2__))
1937 # Return 1 if this is a little-endian ARM target
1938 proc check_effective_target_arm_little_endian { } {
1939 return [check_no_compiler_messages arm_little_endian assembly {
1940 #if !defined(__arm__) || !defined(__ARMEL__)
1946 # Return 1 if this is an ARM target that only supports aligned vector accesses
1947 proc check_effective_target_arm_vect_no_misalign { } {
1948 return [check_no_compiler_messages arm_vect_no_misalign assembly {
1949 #if !defined(__arm__) \
1950 || (defined(__ARMEL__) \
1951 && (!defined(__thumb__) || defined(__thumb2__)))
1958 # Return 1 if this is an ARM target supporting -mfpu=vfp
1959 # -mfloat-abi=softfp. Some multilibs may be incompatible with these
1962 proc check_effective_target_arm_vfp_ok { } {
1963 if { [check_effective_target_arm32] } {
1964 return [check_no_compiler_messages arm_vfp_ok object {
1966 } "-mfpu=vfp -mfloat-abi=softfp"]
1972 # Return 1 if this is an ARM target supporting -mfpu=vfp
1973 # -mfloat-abi=hard. Some multilibs may be incompatible with these
1976 proc check_effective_target_arm_hard_vfp_ok { } {
1977 if { [check_effective_target_arm32] } {
1978 return [check_no_compiler_messages arm_hard_vfp_ok executable {
1979 int main() { return 0;}
1980 } "-mfpu=vfp -mfloat-abi=hard"]
1986 # Return 1 if this is an ARM target that supports DSP multiply with
1987 # current multilib flags.
1989 proc check_effective_target_arm_dsp { } {
1990 return [check_no_compiler_messages arm_dsp assembly {
1991 #ifndef __ARM_FEATURE_DSP
1998 # Return 1 if this is an ARM target that supports unaligned word/halfword
1999 # load/store instructions.
2001 proc check_effective_target_arm_unaligned { } {
2002 return [check_no_compiler_messages arm_unaligned assembly {
2003 #ifndef __ARM_FEATURE_UNALIGNED
2004 #error no unaligned support
2010 # Add the options needed for NEON. We need either -mfloat-abi=softfp
2011 # or -mfloat-abi=hard, but if one is already specified by the
2012 # multilib, use it. Similarly, if a -mfpu option already enables
2013 # NEON, do not add -mfpu=neon.
2015 proc add_options_for_arm_neon { flags } {
2016 if { ! [check_effective_target_arm_neon_ok] } {
2019 global et_arm_neon_flags
2020 return "$flags $et_arm_neon_flags"
2023 # Return 1 if this is an ARM target supporting -mfpu=neon
2024 # -mfloat-abi=softfp or equivalent options. Some multilibs may be
2025 # incompatible with these options. Also set et_arm_neon_flags to the
2026 # best options to add.
2028 proc check_effective_target_arm_neon_ok_nocache { } {
2029 global et_arm_neon_flags
2030 set et_arm_neon_flags ""
2031 if { [check_effective_target_arm32] } {
2032 foreach flags {"" "-mfloat-abi=softfp" "-mfpu=neon" "-mfpu=neon -mfloat-abi=softfp"} {
2033 if { [check_no_compiler_messages_nocache arm_neon_ok object {
2034 #include "arm_neon.h"
2037 set et_arm_neon_flags $flags
2046 proc check_effective_target_arm_neon_ok { } {
2047 return [check_cached_effective_target arm_neon_ok \
2048 check_effective_target_arm_neon_ok_nocache]
2051 # Add the options needed for NEON. We need either -mfloat-abi=softfp
2052 # or -mfloat-abi=hard, but if one is already specified by the
2055 proc add_options_for_arm_fp16 { flags } {
2056 if { ! [check_effective_target_arm_fp16_ok] } {
2059 global et_arm_fp16_flags
2060 return "$flags $et_arm_fp16_flags"
2063 # Return 1 if this is an ARM target that can support a VFP fp16 variant.
2064 # Skip multilibs that are incompatible with these options and set
2065 # et_arm_fp16_flags to the best options to add.
2067 proc check_effective_target_arm_fp16_ok_nocache { } {
2068 global et_arm_fp16_flags
2069 set et_arm_fp16_flags ""
2070 if { ! [check_effective_target_arm32] } {
2073 if [check-flags [list "" { *-*-* } { "-mfpu=*" } { "-mfpu=*fp16*" "-mfpu=*fpv[4-9]*" "-mfpu=*fpv[1-9][0-9]*" } ]] {
2074 # Multilib flags would override -mfpu.
2077 if [check-flags [list "" { *-*-* } { "-mfloat-abi=soft" } { "" } ]] {
2078 # Must generate floating-point instructions.
2081 if [check-flags [list "" { *-*-* } { "-mfpu=*" } { "" } ]] {
2082 # The existing -mfpu value is OK; use it, but add softfp.
2083 set et_arm_fp16_flags "-mfloat-abi=softfp"
2086 # Add -mfpu for a VFP fp16 variant since there is no preprocessor
2087 # macro to check for this support.
2088 set flags "-mfpu=vfpv4 -mfloat-abi=softfp"
2089 if { [check_no_compiler_messages_nocache arm_fp16_ok assembly {
2092 set et_arm_fp16_flags "$flags"
2099 proc check_effective_target_arm_fp16_ok { } {
2100 return [check_cached_effective_target arm_fp16_ok \
2101 check_effective_target_arm_fp16_ok_nocache]
2104 # Creates a series of routines that return 1 if the given architecture
2105 # can be selected and a routine to give the flags to select that architecture
2106 # Note: Extra flags may be added to disable options from newer compilers
2107 # (Thumb in particular - but others may be added in the future)
2108 # Usage: /* { dg-require-effective-target arm_arch_v5_ok } */
2109 # /* { dg-add-options arm_arch_v5 } */
2110 foreach { armfunc armflag armdef } { v5 "-march=armv5 -marm" __ARM_ARCH_5__
2111 v6 "-march=armv6" __ARM_ARCH_6__
2112 v6k "-march=armv6k" __ARM_ARCH_6K__
2113 v7a "-march=armv7-a" __ARM_ARCH_7A__ } {
2114 eval [string map [list FUNC $armfunc FLAG $armflag DEF $armdef ] {
2115 proc check_effective_target_arm_arch_FUNC_ok { } {
2116 if { [ string match "*-marm*" "FLAG" ] &&
2117 ![check_effective_target_arm_arm_ok] } {
2120 return [check_no_compiler_messages arm_arch_FUNC_ok assembly {
2127 proc add_options_for_arm_arch_FUNC { flags } {
2128 return "$flags FLAG"
2133 # Return 1 if this is an ARM target where -marm causes ARM to be
2136 proc check_effective_target_arm_arm_ok { } {
2137 return [check_no_compiler_messages arm_arm_ok assembly {
2138 #if !defined (__arm__) || defined (__thumb__) || defined (__thumb2__)
2145 # Return 1 is this is an ARM target where -mthumb causes Thumb-1 to be
2148 proc check_effective_target_arm_thumb1_ok { } {
2149 return [check_no_compiler_messages arm_thumb1_ok assembly {
2150 #if !defined(__arm__) || !defined(__thumb__) || defined(__thumb2__)
2156 # Return 1 is this is an ARM target where -mthumb causes Thumb-2 to be
2159 proc check_effective_target_arm_thumb2_ok { } {
2160 return [check_no_compiler_messages arm_thumb2_ok assembly {
2161 #if !defined(__thumb2__)
2167 # Return 1 if this is an ARM target where Thumb-1 is used without options
2168 # added by the test.
2170 proc check_effective_target_arm_thumb1 { } {
2171 return [check_no_compiler_messages arm_thumb1 assembly {
2172 #if !defined(__arm__) || !defined(__thumb__) || defined(__thumb2__)
2179 # Return 1 if this is an ARM target where Thumb-2 is used without options
2180 # added by the test.
2182 proc check_effective_target_arm_thumb2 { } {
2183 return [check_no_compiler_messages arm_thumb2 assembly {
2184 #if !defined(__thumb2__)
2191 # Return 1 if this is an ARM cortex-M profile cpu
2193 proc check_effective_target_arm_cortex_m { } {
2194 return [check_no_compiler_messages arm_cortex_m assembly {
2195 #if !defined(__ARM_ARCH_7M__) \
2196 && !defined (__ARM_ARCH_7EM__) \
2197 && !defined (__ARM_ARCH_6M__)
2204 # Return 1 if the target supports executing NEON instructions, 0
2205 # otherwise. Cache the result.
2207 proc check_effective_target_arm_neon_hw { } {
2208 return [check_runtime arm_neon_hw_available {
2212 long long a = 0, b = 1;
2213 asm ("vorr %P0, %P1, %P2"
2215 : "0" (a), "w" (b));
2218 } [add_options_for_arm_neon ""]]
2221 # Return 1 if this is a ARM target with NEON enabled.
2223 proc check_effective_target_arm_neon { } {
2224 if { [check_effective_target_arm32] } {
2225 return [check_no_compiler_messages arm_neon object {
2226 #ifndef __ARM_NEON__
2237 # Return 1 if this a Loongson-2E or -2F target using an ABI that supports
2238 # the Loongson vector modes.
2240 proc check_effective_target_mips_loongson { } {
2241 return [check_no_compiler_messages loongson assembly {
2242 #if !defined(__mips_loongson_vector_rev)
2248 # Return 1 if this is an ARM target that adheres to the ABI for the ARM
2251 proc check_effective_target_arm_eabi { } {
2252 return [check_no_compiler_messages arm_eabi object {
2253 #ifndef __ARM_EABI__
2261 # Return 1 if this is an ARM target supporting -mcpu=iwmmxt.
2262 # Some multilibs may be incompatible with this option.
2264 proc check_effective_target_arm_iwmmxt_ok { } {
2265 if { [check_effective_target_arm32] } {
2266 return [check_no_compiler_messages arm_iwmmxt_ok object {
2274 # Return 1 if this is a PowerPC target with floating-point registers.
2276 proc check_effective_target_powerpc_fprs { } {
2277 if { [istarget powerpc*-*-*]
2278 || [istarget rs6000-*-*] } {
2279 return [check_no_compiler_messages powerpc_fprs object {
2291 # Return 1 if this is a PowerPC target with hardware double-precision
2294 proc check_effective_target_powerpc_hard_double { } {
2295 if { [istarget powerpc*-*-*]
2296 || [istarget rs6000-*-*] } {
2297 return [check_no_compiler_messages powerpc_hard_double object {
2309 # Return 1 if this is a PowerPC target supporting -maltivec.
2311 proc check_effective_target_powerpc_altivec_ok { } {
2312 if { ([istarget powerpc*-*-*]
2313 && ![istarget powerpc-*-linux*paired*])
2314 || [istarget rs6000-*-*] } {
2315 # AltiVec is not supported on AIX before 5.3.
2316 if { [istarget powerpc*-*-aix4*]
2317 || [istarget powerpc*-*-aix5.1*]
2318 || [istarget powerpc*-*-aix5.2*] } {
2321 return [check_no_compiler_messages powerpc_altivec_ok object {
2329 # Return 1 if this is a PowerPC target supporting -mvsx
2331 proc check_effective_target_powerpc_vsx_ok { } {
2332 if { ([istarget powerpc*-*-*]
2333 && ![istarget powerpc-*-linux*paired*])
2334 || [istarget rs6000-*-*] } {
2335 # AltiVec is not supported on AIX before 5.3.
2336 if { [istarget powerpc*-*-aix4*]
2337 || [istarget powerpc*-*-aix5.1*]
2338 || [istarget powerpc*-*-aix5.2*] } {
2341 return [check_no_compiler_messages powerpc_vsx_ok object {
2344 asm volatile ("xxlor vs0,vs0,vs0");
2346 asm volatile ("xxlor 0,0,0");
2356 # Return 1 if this is a PowerPC target supporting -mcpu=cell.
2358 proc check_effective_target_powerpc_ppu_ok { } {
2359 if [check_effective_target_powerpc_altivec_ok] {
2360 return [check_no_compiler_messages cell_asm_available object {
2363 asm volatile ("lvlx v0,v0,v0");
2365 asm volatile ("lvlx 0,0,0");
2375 # Return 1 if this is a PowerPC target that supports SPU.
2377 proc check_effective_target_powerpc_spu { } {
2378 if { [istarget powerpc*-*-linux*] } {
2379 return [check_effective_target_powerpc_altivec_ok]
2385 # Return 1 if this is a PowerPC SPE target. The check includes options
2386 # specified by dg-options for this test, so don't cache the result.
2388 proc check_effective_target_powerpc_spe_nocache { } {
2389 if { [istarget powerpc*-*-*] } {
2390 return [check_no_compiler_messages_nocache powerpc_spe object {
2396 } [current_compiler_flags]]
2402 # Return 1 if this is a PowerPC target with SPE enabled.
2404 proc check_effective_target_powerpc_spe { } {
2405 if { [istarget powerpc*-*-*] } {
2406 return [check_no_compiler_messages powerpc_spe object {
2418 # Return 1 if this is a PowerPC target with Altivec enabled.
2420 proc check_effective_target_powerpc_altivec { } {
2421 if { [istarget powerpc*-*-*] } {
2422 return [check_no_compiler_messages powerpc_altivec object {
2434 # Return 1 if this is a PowerPC 405 target. The check includes options
2435 # specified by dg-options for this test, so don't cache the result.
2437 proc check_effective_target_powerpc_405_nocache { } {
2438 if { [istarget powerpc*-*-*] || [istarget rs6000-*-*] } {
2439 return [check_no_compiler_messages_nocache powerpc_405 object {
2445 } [current_compiler_flags]]
2451 # Return 1 if this is a SPU target with a toolchain that
2452 # supports automatic overlay generation.
2454 proc check_effective_target_spu_auto_overlay { } {
2455 if { [istarget spu*-*-elf*] } {
2456 return [check_no_compiler_messages spu_auto_overlay executable {
2458 } "-Wl,--auto-overlay" ]
2464 # The VxWorks SPARC simulator accepts only EM_SPARC executables and
2465 # chokes on EM_SPARC32PLUS or EM_SPARCV9 executables. Return 1 if the
2466 # test environment appears to run executables on such a simulator.
2468 proc check_effective_target_ultrasparc_hw { } {
2469 return [check_runtime ultrasparc_hw {
2470 int main() { return 0; }
2471 } "-mcpu=ultrasparc"]
2474 # Return 1 if the test environment supports executing UltraSPARC VIS2
2475 # instructions. We check this by attempting: "bmask %g0, %g0, %g0"
2477 proc check_effective_target_ultrasparc_vis2_hw { } {
2478 return [check_runtime ultrasparc_hw {
2479 int main() { __asm__(".word 0x81b00320"); return 0; }
2480 } "-mcpu=ultrasparc3"]
2483 # Return 1 if the test environment supports executing UltraSPARC VIS3
2484 # instructions. We check this by attempting: "addxc %g0, %g0, %g0"
2486 proc check_effective_target_ultrasparc_vis3_hw { } {
2487 return [check_runtime ultrasparc_hw {
2488 int main() { __asm__(".word 0x81b00220"); return 0; }
2492 # Return 1 if the target supports hardware vector shift operation.
2494 proc check_effective_target_vect_shift { } {
2495 global et_vect_shift_saved
2497 if [info exists et_vect_shift_saved] {
2498 verbose "check_effective_target_vect_shift: using cached result" 2
2500 set et_vect_shift_saved 0
2501 if { ([istarget powerpc*-*-*]
2502 && ![istarget powerpc-*-linux*paired*])
2503 || [istarget ia64-*-*]
2504 || [istarget i?86-*-*]
2505 || [istarget x86_64-*-*]
2506 || [check_effective_target_arm32]
2507 || ([istarget mips*-*-*]
2508 && [check_effective_target_mips_loongson]) } {
2509 set et_vect_shift_saved 1
2513 verbose "check_effective_target_vect_shift: returning $et_vect_shift_saved" 2
2514 return $et_vect_shift_saved
2517 # Return 1 if the target supports hardware vector shift operation for char.
2519 proc check_effective_target_vect_shift_char { } {
2520 global et_vect_shift_char_saved
2522 if [info exists et_vect_shift_char_saved] {
2523 verbose "check_effective_target_vect_shift_char: using cached result" 2
2525 set et_vect_shift_char_saved 0
2526 if { ([istarget powerpc*-*-*]
2527 && ![istarget powerpc-*-linux*paired*])
2528 || [check_effective_target_arm32] } {
2529 set et_vect_shift_char_saved 1
2533 verbose "check_effective_target_vect_shift_char: returning $et_vect_shift_char_saved" 2
2534 return $et_vect_shift_char_saved
2537 # Return 1 if the target supports hardware vectors of long, 0 otherwise.
2539 # This can change for different subtargets so do not cache the result.
2541 proc check_effective_target_vect_long { } {
2542 if { [istarget i?86-*-*]
2543 || (([istarget powerpc*-*-*]
2544 && ![istarget powerpc-*-linux*paired*])
2545 && [check_effective_target_ilp32])
2546 || [istarget x86_64-*-*]
2547 || [check_effective_target_arm32]
2548 || ([istarget sparc*-*-*] && [check_effective_target_ilp32]) } {
2554 verbose "check_effective_target_vect_long: returning $answer" 2
2558 # Return 1 if the target supports hardware vectors of float, 0 otherwise.
2560 # This won't change for different subtargets so cache the result.
2562 proc check_effective_target_vect_float { } {
2563 global et_vect_float_saved
2565 if [info exists et_vect_float_saved] {
2566 verbose "check_effective_target_vect_float: using cached result" 2
2568 set et_vect_float_saved 0
2569 if { [istarget i?86-*-*]
2570 || [istarget powerpc*-*-*]
2571 || [istarget spu-*-*]
2572 || [istarget mipsisa64*-*-*]
2573 || [istarget x86_64-*-*]
2574 || [istarget ia64-*-*]
2575 || [check_effective_target_arm32] } {
2576 set et_vect_float_saved 1
2580 verbose "check_effective_target_vect_float: returning $et_vect_float_saved" 2
2581 return $et_vect_float_saved
2584 # Return 1 if the target supports hardware vectors of double, 0 otherwise.
2586 # This won't change for different subtargets so cache the result.
2588 proc check_effective_target_vect_double { } {
2589 global et_vect_double_saved
2591 if [info exists et_vect_double_saved] {
2592 verbose "check_effective_target_vect_double: using cached result" 2
2594 set et_vect_double_saved 0
2595 if { [istarget i?86-*-*]
2596 || [istarget x86_64-*-*] } {
2597 if { [check_no_compiler_messages vect_double assembly {
2598 #ifdef __tune_atom__
2599 # error No double vectorizer support.
2602 set et_vect_double_saved 1
2604 set et_vect_double_saved 0
2606 } elseif { [istarget spu-*-*] } {
2607 set et_vect_double_saved 1
2611 verbose "check_effective_target_vect_double: returning $et_vect_double_saved" 2
2612 return $et_vect_double_saved
2615 # Return 1 if the target supports hardware vectors of long long, 0 otherwise.
2617 # This won't change for different subtargets so cache the result.
2619 proc check_effective_target_vect_long_long { } {
2620 global et_vect_long_long_saved
2622 if [info exists et_vect_long_long_saved] {
2623 verbose "check_effective_target_vect_long_long: using cached result" 2
2625 set et_vect_long_long_saved 0
2626 if { [istarget i?86-*-*]
2627 || [istarget x86_64-*-*] } {
2628 set et_vect_long_long_saved 1
2632 verbose "check_effective_target_vect_long_long: returning $et_vect_long_long_saved" 2
2633 return $et_vect_long_long_saved
2637 # Return 1 if the target plus current options does not support a vector
2638 # max instruction on "int", 0 otherwise.
2640 # This won't change for different subtargets so cache the result.
2642 proc check_effective_target_vect_no_int_max { } {
2643 global et_vect_no_int_max_saved
2645 if [info exists et_vect_no_int_max_saved] {
2646 verbose "check_effective_target_vect_no_int_max: using cached result" 2
2648 set et_vect_no_int_max_saved 0
2649 if { [istarget sparc*-*-*]
2650 || [istarget spu-*-*]
2651 || [istarget alpha*-*-*]
2652 || ([istarget mips*-*-*]
2653 && [check_effective_target_mips_loongson]) } {
2654 set et_vect_no_int_max_saved 1
2657 verbose "check_effective_target_vect_no_int_max: returning $et_vect_no_int_max_saved" 2
2658 return $et_vect_no_int_max_saved
2661 # Return 1 if the target plus current options does not support a vector
2662 # add instruction on "int", 0 otherwise.
2664 # This won't change for different subtargets so cache the result.
2666 proc check_effective_target_vect_no_int_add { } {
2667 global et_vect_no_int_add_saved
2669 if [info exists et_vect_no_int_add_saved] {
2670 verbose "check_effective_target_vect_no_int_add: using cached result" 2
2672 set et_vect_no_int_add_saved 0
2673 # Alpha only supports vector add on V8QI and V4HI.
2674 if { [istarget alpha*-*-*] } {
2675 set et_vect_no_int_add_saved 1
2678 verbose "check_effective_target_vect_no_int_add: returning $et_vect_no_int_add_saved" 2
2679 return $et_vect_no_int_add_saved
2682 # Return 1 if the target plus current options does not support vector
2683 # bitwise instructions, 0 otherwise.
2685 # This won't change for different subtargets so cache the result.
2687 proc check_effective_target_vect_no_bitwise { } {
2688 global et_vect_no_bitwise_saved
2690 if [info exists et_vect_no_bitwise_saved] {
2691 verbose "check_effective_target_vect_no_bitwise: using cached result" 2
2693 set et_vect_no_bitwise_saved 0
2695 verbose "check_effective_target_vect_no_bitwise: returning $et_vect_no_bitwise_saved" 2
2696 return $et_vect_no_bitwise_saved
2699 # Return 1 if the target plus current options supports vector permutation,
2702 # This won't change for different subtargets so cache the result.
2704 proc check_effective_target_vect_perm { } {
2707 if [info exists et_vect_perm_saved] {
2708 verbose "check_effective_target_vect_perm: using cached result" 2
2710 set et_vect_perm_saved 0
2711 if { [istarget powerpc*-*-*]
2712 || [istarget spu-*-*]
2713 || [istarget i?86-*-*]
2714 || [istarget x86_64-*-*] } {
2715 set et_vect_perm_saved 1
2718 verbose "check_effective_target_vect_perm: returning $et_vect_perm_saved" 2
2719 return $et_vect_perm_saved
2722 # Return 1 if the target plus current options supports vector permutation
2723 # on byte-sized elements, 0 otherwise.
2725 # This won't change for different subtargets so cache the result.
2727 proc check_effective_target_vect_perm_byte { } {
2728 global et_vect_perm_byte
2730 if [info exists et_vect_perm_byte_saved] {
2731 verbose "check_effective_target_vect_perm_byte: using cached result" 2
2733 set et_vect_perm_byte_saved 0
2734 if { [istarget powerpc*-*-*]
2735 || [istarget spu-*-*] } {
2736 set et_vect_perm_byte_saved 1
2739 verbose "check_effective_target_vect_perm_byte: returning $et_vect_perm_byte_saved" 2
2740 return $et_vect_perm_byte_saved
2743 # Return 1 if the target plus current options supports vector permutation
2744 # on short-sized elements, 0 otherwise.
2746 # This won't change for different subtargets so cache the result.
2748 proc check_effective_target_vect_perm_short { } {
2749 global et_vect_perm_short
2751 if [info exists et_vect_perm_short_saved] {
2752 verbose "check_effective_target_vect_perm_short: using cached result" 2
2754 set et_vect_perm_short_saved 0
2755 if { [istarget powerpc*-*-*]
2756 || [istarget spu-*-*] } {
2757 set et_vect_perm_short_saved 1
2760 verbose "check_effective_target_vect_perm_short: returning $et_vect_perm_short_saved" 2
2761 return $et_vect_perm_short_saved
2764 # Return 1 if the target plus current options supports a vector
2765 # widening summation of *short* args into *int* result, 0 otherwise.
2767 # This won't change for different subtargets so cache the result.
2769 proc check_effective_target_vect_widen_sum_hi_to_si_pattern { } {
2770 global et_vect_widen_sum_hi_to_si_pattern
2772 if [info exists et_vect_widen_sum_hi_to_si_pattern_saved] {
2773 verbose "check_effective_target_vect_widen_sum_hi_to_si_pattern: using cached result" 2
2775 set et_vect_widen_sum_hi_to_si_pattern_saved 0
2776 if { [istarget powerpc*-*-*]
2777 || [istarget ia64-*-*] } {
2778 set et_vect_widen_sum_hi_to_si_pattern_saved 1
2781 verbose "check_effective_target_vect_widen_sum_hi_to_si_pattern: returning $et_vect_widen_sum_hi_to_si_pattern_saved" 2
2782 return $et_vect_widen_sum_hi_to_si_pattern_saved
2785 # Return 1 if the target plus current options supports a vector
2786 # widening summation of *short* args into *int* result, 0 otherwise.
2787 # A target can also support this widening summation if it can support
2788 # promotion (unpacking) from shorts to ints.
2790 # This won't change for different subtargets so cache the result.
2792 proc check_effective_target_vect_widen_sum_hi_to_si { } {
2793 global et_vect_widen_sum_hi_to_si
2795 if [info exists et_vect_widen_sum_hi_to_si_saved] {
2796 verbose "check_effective_target_vect_widen_sum_hi_to_si: using cached result" 2
2798 set et_vect_widen_sum_hi_to_si_saved [check_effective_target_vect_unpack]
2799 if { [istarget powerpc*-*-*]
2800 || [istarget ia64-*-*] } {
2801 set et_vect_widen_sum_hi_to_si_saved 1
2804 verbose "check_effective_target_vect_widen_sum_hi_to_si: returning $et_vect_widen_sum_hi_to_si_saved" 2
2805 return $et_vect_widen_sum_hi_to_si_saved
2808 # Return 1 if the target plus current options supports a vector
2809 # widening summation of *char* args into *short* result, 0 otherwise.
2810 # A target can also support this widening summation if it can support
2811 # promotion (unpacking) from chars to shorts.
2813 # This won't change for different subtargets so cache the result.
2815 proc check_effective_target_vect_widen_sum_qi_to_hi { } {
2816 global et_vect_widen_sum_qi_to_hi
2818 if [info exists et_vect_widen_sum_qi_to_hi_saved] {
2819 verbose "check_effective_target_vect_widen_sum_qi_to_hi: using cached result" 2
2821 set et_vect_widen_sum_qi_to_hi_saved 0
2822 if { [check_effective_target_vect_unpack]
2823 || [istarget ia64-*-*] } {
2824 set et_vect_widen_sum_qi_to_hi_saved 1
2827 verbose "check_effective_target_vect_widen_sum_qi_to_hi: returning $et_vect_widen_sum_qi_to_hi_saved" 2
2828 return $et_vect_widen_sum_qi_to_hi_saved
2831 # Return 1 if the target plus current options supports a vector
2832 # widening summation of *char* args into *int* result, 0 otherwise.
2834 # This won't change for different subtargets so cache the result.
2836 proc check_effective_target_vect_widen_sum_qi_to_si { } {
2837 global et_vect_widen_sum_qi_to_si
2839 if [info exists et_vect_widen_sum_qi_to_si_saved] {
2840 verbose "check_effective_target_vect_widen_sum_qi_to_si: using cached result" 2
2842 set et_vect_widen_sum_qi_to_si_saved 0
2843 if { [istarget powerpc*-*-*] } {
2844 set et_vect_widen_sum_qi_to_si_saved 1
2847 verbose "check_effective_target_vect_widen_sum_qi_to_si: returning $et_vect_widen_sum_qi_to_si_saved" 2
2848 return $et_vect_widen_sum_qi_to_si_saved
2851 # Return 1 if the target plus current options supports a vector
2852 # widening multiplication of *char* args into *short* result, 0 otherwise.
2853 # A target can also support this widening multplication if it can support
2854 # promotion (unpacking) from chars to shorts, and vect_short_mult (non-widening
2855 # multiplication of shorts).
2857 # This won't change for different subtargets so cache the result.
2860 proc check_effective_target_vect_widen_mult_qi_to_hi { } {
2861 global et_vect_widen_mult_qi_to_hi
2863 if [info exists et_vect_widen_mult_qi_to_hi_saved] {
2864 verbose "check_effective_target_vect_widen_mult_qi_to_hi: using cached result" 2
2866 if { [check_effective_target_vect_unpack]
2867 && [check_effective_target_vect_short_mult] } {
2868 set et_vect_widen_mult_qi_to_hi_saved 1
2870 set et_vect_widen_mult_qi_to_hi_saved 0
2872 if { [istarget powerpc*-*-*]
2873 || ([istarget arm*-*-*] && [check_effective_target_arm_neon]) } {
2874 set et_vect_widen_mult_qi_to_hi_saved 1
2877 verbose "check_effective_target_vect_widen_mult_qi_to_hi: returning $et_vect_widen_mult_qi_to_hi_saved" 2
2878 return $et_vect_widen_mult_qi_to_hi_saved
2881 # Return 1 if the target plus current options supports a vector
2882 # widening multiplication of *short* args into *int* result, 0 otherwise.
2883 # A target can also support this widening multplication if it can support
2884 # promotion (unpacking) from shorts to ints, and vect_int_mult (non-widening
2885 # multiplication of ints).
2887 # This won't change for different subtargets so cache the result.
2890 proc check_effective_target_vect_widen_mult_hi_to_si { } {
2891 global et_vect_widen_mult_hi_to_si
2893 if [info exists et_vect_widen_mult_hi_to_si_saved] {
2894 verbose "check_effective_target_vect_widen_mult_hi_to_si: using cached result" 2
2896 if { [check_effective_target_vect_unpack]
2897 && [check_effective_target_vect_int_mult] } {
2898 set et_vect_widen_mult_hi_to_si_saved 1
2900 set et_vect_widen_mult_hi_to_si_saved 0
2902 if { [istarget powerpc*-*-*]
2903 || [istarget spu-*-*]
2904 || [istarget ia64-*-*]
2905 || [istarget i?86-*-*]
2906 || [istarget x86_64-*-*]
2907 || ([istarget arm*-*-*] && [check_effective_target_arm_neon]) } {
2908 set et_vect_widen_mult_hi_to_si_saved 1
2911 verbose "check_effective_target_vect_widen_mult_hi_to_si: returning $et_vect_widen_mult_hi_to_si_saved" 2
2912 return $et_vect_widen_mult_hi_to_si_saved
2915 # Return 1 if the target plus current options supports a vector
2916 # widening multiplication of *char* args into *short* result, 0 otherwise.
2918 # This won't change for different subtargets so cache the result.
2920 proc check_effective_target_vect_widen_mult_qi_to_hi_pattern { } {
2921 global et_vect_widen_mult_qi_to_hi_pattern
2923 if [info exists et_vect_widen_mult_qi_to_hi_pattern_saved] {
2924 verbose "check_effective_target_vect_widen_mult_qi_to_hi_pattern: using cached result" 2
2926 set et_vect_widen_mult_qi_to_hi_pattern_saved 0
2927 if { [istarget powerpc*-*-*]
2928 || ([istarget arm*-*-*] && [check_effective_target_arm_neon]) } {
2929 set et_vect_widen_mult_qi_to_hi_pattern_saved 1
2932 verbose "check_effective_target_vect_widen_mult_qi_to_hi_pattern: returning $et_vect_widen_mult_qi_to_hi_pattern_saved" 2
2933 return $et_vect_widen_mult_qi_to_hi_pattern_saved
2936 # Return 1 if the target plus current options supports a vector
2937 # widening multiplication of *short* args into *int* result, 0 otherwise.
2939 # This won't change for different subtargets so cache the result.
2941 proc check_effective_target_vect_widen_mult_hi_to_si_pattern { } {
2942 global et_vect_widen_mult_hi_to_si_pattern
2944 if [info exists et_vect_widen_mult_hi_to_si_pattern_saved] {
2945 verbose "check_effective_target_vect_widen_mult_hi_to_si_pattern: using cached result" 2
2947 set et_vect_widen_mult_hi_to_si_pattern_saved 0
2948 if { [istarget powerpc*-*-*]
2949 || [istarget spu-*-*]
2950 || [istarget ia64-*-*]
2951 || [istarget i?86-*-*]
2952 || [istarget x86_64-*-*]
2953 || ([istarget arm*-*-*] && [check_effective_target_arm_neon]) } {
2954 set et_vect_widen_mult_hi_to_si_pattern_saved 1
2957 verbose "check_effective_target_vect_widen_mult_hi_to_si_pattern: returning $et_vect_widen_mult_hi_to_si_pattern_saved" 2
2958 return $et_vect_widen_mult_hi_to_si_pattern_saved
2961 # Return 1 if the target plus current options supports a vector
2962 # widening shift, 0 otherwise.
2964 # This won't change for different subtargets so cache the result.
2966 proc check_effective_target_vect_widen_shift { } {
2967 global et_vect_widen_shift_saved
2969 if [info exists et_vect_shift_saved] {
2970 verbose "check_effective_target_vect_widen_shift: using cached result" 2
2972 set et_vect_widen_shift_saved 0
2973 if { ([istarget arm*-*-*] && [check_effective_target_arm_neon_ok]) } {
2974 set et_vect_widen_shift_saved 1
2977 verbose "check_effective_target_vect_widen_shift: returning $et_vect_widen_shift_saved" 2
2978 return $et_vect_widen_shift_saved
2981 # Return 1 if the target plus current options supports a vector
2982 # dot-product of signed chars, 0 otherwise.
2984 # This won't change for different subtargets so cache the result.
2986 proc check_effective_target_vect_sdot_qi { } {
2987 global et_vect_sdot_qi
2989 if [info exists et_vect_sdot_qi_saved] {
2990 verbose "check_effective_target_vect_sdot_qi: using cached result" 2
2992 set et_vect_sdot_qi_saved 0
2993 if { [istarget ia64-*-*] } {
2994 set et_vect_udot_qi_saved 1
2997 verbose "check_effective_target_vect_sdot_qi: returning $et_vect_sdot_qi_saved" 2
2998 return $et_vect_sdot_qi_saved
3001 # Return 1 if the target plus current options supports a vector
3002 # dot-product of unsigned chars, 0 otherwise.
3004 # This won't change for different subtargets so cache the result.
3006 proc check_effective_target_vect_udot_qi { } {
3007 global et_vect_udot_qi
3009 if [info exists et_vect_udot_qi_saved] {
3010 verbose "check_effective_target_vect_udot_qi: using cached result" 2
3012 set et_vect_udot_qi_saved 0
3013 if { [istarget powerpc*-*-*]
3014 || [istarget ia64-*-*] } {
3015 set et_vect_udot_qi_saved 1
3018 verbose "check_effective_target_vect_udot_qi: returning $et_vect_udot_qi_saved" 2
3019 return $et_vect_udot_qi_saved
3022 # Return 1 if the target plus current options supports a vector
3023 # dot-product of signed shorts, 0 otherwise.
3025 # This won't change for different subtargets so cache the result.
3027 proc check_effective_target_vect_sdot_hi { } {
3028 global et_vect_sdot_hi
3030 if [info exists et_vect_sdot_hi_saved] {
3031 verbose "check_effective_target_vect_sdot_hi: using cached result" 2
3033 set et_vect_sdot_hi_saved 0
3034 if { ([istarget powerpc*-*-*] && ![istarget powerpc-*-linux*paired*])
3035 || [istarget ia64-*-*]
3036 || [istarget i?86-*-*]
3037 || [istarget x86_64-*-*] } {
3038 set et_vect_sdot_hi_saved 1
3041 verbose "check_effective_target_vect_sdot_hi: returning $et_vect_sdot_hi_saved" 2
3042 return $et_vect_sdot_hi_saved
3045 # Return 1 if the target plus current options supports a vector
3046 # dot-product of unsigned shorts, 0 otherwise.
3048 # This won't change for different subtargets so cache the result.
3050 proc check_effective_target_vect_udot_hi { } {
3051 global et_vect_udot_hi
3053 if [info exists et_vect_udot_hi_saved] {
3054 verbose "check_effective_target_vect_udot_hi: using cached result" 2
3056 set et_vect_udot_hi_saved 0
3057 if { ([istarget powerpc*-*-*] && ![istarget powerpc-*-linux*paired*]) } {
3058 set et_vect_udot_hi_saved 1
3061 verbose "check_effective_target_vect_udot_hi: returning $et_vect_udot_hi_saved" 2
3062 return $et_vect_udot_hi_saved
3066 # Return 1 if the target plus current options supports a vector
3067 # demotion (packing) of shorts (to chars) and ints (to shorts)
3068 # using modulo arithmetic, 0 otherwise.
3070 # This won't change for different subtargets so cache the result.
3072 proc check_effective_target_vect_pack_trunc { } {
3073 global et_vect_pack_trunc
3075 if [info exists et_vect_pack_trunc_saved] {
3076 verbose "check_effective_target_vect_pack_trunc: using cached result" 2
3078 set et_vect_pack_trunc_saved 0
3079 if { ([istarget powerpc*-*-*] && ![istarget powerpc-*-linux*paired*])
3080 || [istarget i?86-*-*]
3081 || [istarget x86_64-*-*]
3082 || [istarget spu-*-*]
3083 || ([istarget arm*-*-*] && [check_effective_target_arm_neon]
3084 && [check_effective_target_arm_little_endian]) } {
3085 set et_vect_pack_trunc_saved 1
3088 verbose "check_effective_target_vect_pack_trunc: returning $et_vect_pack_trunc_saved" 2
3089 return $et_vect_pack_trunc_saved
3092 # Return 1 if the target plus current options supports a vector
3093 # promotion (unpacking) of chars (to shorts) and shorts (to ints), 0 otherwise.
3095 # This won't change for different subtargets so cache the result.
3097 proc check_effective_target_vect_unpack { } {
3098 global et_vect_unpack
3100 if [info exists et_vect_unpack_saved] {
3101 verbose "check_effective_target_vect_unpack: using cached result" 2
3103 set et_vect_unpack_saved 0
3104 if { ([istarget powerpc*-*-*] && ![istarget powerpc-*paired*])
3105 || [istarget i?86-*-*]
3106 || [istarget x86_64-*-*]
3107 || [istarget spu-*-*]
3108 || [istarget ia64-*-*]
3109 || ([istarget arm*-*-*] && [check_effective_target_arm_neon]
3110 && [check_effective_target_arm_little_endian]) } {
3111 set et_vect_unpack_saved 1
3114 verbose "check_effective_target_vect_unpack: returning $et_vect_unpack_saved" 2
3115 return $et_vect_unpack_saved
3118 # Return 1 if the target plus current options does not guarantee
3119 # that its STACK_BOUNDARY is >= the reguired vector alignment.
3121 # This won't change for different subtargets so cache the result.
3123 proc check_effective_target_unaligned_stack { } {
3124 global et_unaligned_stack_saved
3126 if [info exists et_unaligned_stack_saved] {
3127 verbose "check_effective_target_unaligned_stack: using cached result" 2
3129 set et_unaligned_stack_saved 0
3131 verbose "check_effective_target_unaligned_stack: returning $et_unaligned_stack_saved" 2
3132 return $et_unaligned_stack_saved
3135 # Return 1 if the target plus current options does not support a vector
3136 # alignment mechanism, 0 otherwise.
3138 # This won't change for different subtargets so cache the result.
3140 proc check_effective_target_vect_no_align { } {
3141 global et_vect_no_align_saved
3143 if [info exists et_vect_no_align_saved] {
3144 verbose "check_effective_target_vect_no_align: using cached result" 2
3146 set et_vect_no_align_saved 0
3147 if { [istarget mipsisa64*-*-*]
3148 || [istarget sparc*-*-*]
3149 || [istarget ia64-*-*]
3150 || [check_effective_target_arm_vect_no_misalign]
3151 || ([istarget mips*-*-*]
3152 && [check_effective_target_mips_loongson]) } {
3153 set et_vect_no_align_saved 1
3156 verbose "check_effective_target_vect_no_align: returning $et_vect_no_align_saved" 2
3157 return $et_vect_no_align_saved
3160 # Return 1 if the target supports a vector misalign access, 0 otherwise.
3162 # This won't change for different subtargets so cache the result.
3164 proc check_effective_target_vect_hw_misalign { } {
3165 global et_vect_hw_misalign_saved
3167 if [info exists et_vect_hw_misalign_saved] {
3168 verbose "check_effective_target_vect_hw_misalign: using cached result" 2
3170 set et_vect_hw_misalign_saved 0
3171 if { ([istarget x86_64-*-*]
3172 || [istarget i?86-*-*]) } {
3173 set et_vect_hw_misalign_saved 1
3176 verbose "check_effective_target_vect_hw_misalign: returning $et_vect_hw_misalign_saved" 2
3177 return $et_vect_hw_misalign_saved
3181 # Return 1 if arrays are aligned to the vector alignment
3182 # boundary, 0 otherwise.
3184 # This won't change for different subtargets so cache the result.
3186 proc check_effective_target_vect_aligned_arrays { } {
3187 global et_vect_aligned_arrays
3189 if [info exists et_vect_aligned_arrays_saved] {
3190 verbose "check_effective_target_vect_aligned_arrays: using cached result" 2
3192 set et_vect_aligned_arrays_saved 0
3193 if { (([istarget x86_64-*-*]
3194 || [istarget i?86-*-*]) && [is-effective-target lp64])
3195 || [istarget spu-*-*] } {
3196 set et_vect_aligned_arrays_saved 1
3199 verbose "check_effective_target_vect_aligned_arrays: returning $et_vect_aligned_arrays_saved" 2
3200 return $et_vect_aligned_arrays_saved
3203 # Return 1 if types of size 32 bit or less are naturally aligned
3204 # (aligned to their type-size), 0 otherwise.
3206 # This won't change for different subtargets so cache the result.
3208 proc check_effective_target_natural_alignment_32 { } {
3209 global et_natural_alignment_32
3211 if [info exists et_natural_alignment_32_saved] {
3212 verbose "check_effective_target_natural_alignment_32: using cached result" 2
3214 # FIXME: 32bit powerpc: guaranteed only if MASK_ALIGN_NATURAL/POWER.
3215 set et_natural_alignment_32_saved 1
3216 if { ([istarget *-*-darwin*] && [is-effective-target lp64]) } {
3217 set et_natural_alignment_32_saved 0
3220 verbose "check_effective_target_natural_alignment_32: returning $et_natural_alignment_32_saved" 2
3221 return $et_natural_alignment_32_saved
3224 # Return 1 if types of size 64 bit or less are naturally aligned (aligned to their
3225 # type-size), 0 otherwise.
3227 # This won't change for different subtargets so cache the result.
3229 proc check_effective_target_natural_alignment_64 { } {
3230 global et_natural_alignment_64
3232 if [info exists et_natural_alignment_64_saved] {
3233 verbose "check_effective_target_natural_alignment_64: using cached result" 2
3235 set et_natural_alignment_64_saved 0
3236 if { ([is-effective-target lp64] && ![istarget *-*-darwin*])
3237 || [istarget spu-*-*] } {
3238 set et_natural_alignment_64_saved 1
3241 verbose "check_effective_target_natural_alignment_64: returning $et_natural_alignment_64_saved" 2
3242 return $et_natural_alignment_64_saved
3245 # Return 1 if vector alignment (for types of size 32 bit or less) is reachable, 0 otherwise.
3247 # This won't change for different subtargets so cache the result.
3249 proc check_effective_target_vector_alignment_reachable { } {
3250 global et_vector_alignment_reachable
3252 if [info exists et_vector_alignment_reachable_saved] {
3253 verbose "check_effective_target_vector_alignment_reachable: using cached result" 2
3255 if { [check_effective_target_vect_aligned_arrays]
3256 || [check_effective_target_natural_alignment_32] } {
3257 set et_vector_alignment_reachable_saved 1
3259 set et_vector_alignment_reachable_saved 0
3262 verbose "check_effective_target_vector_alignment_reachable: returning $et_vector_alignment_reachable_saved" 2
3263 return $et_vector_alignment_reachable_saved
3266 # Return 1 if vector alignment for 64 bit is reachable, 0 otherwise.
3268 # This won't change for different subtargets so cache the result.
3270 proc check_effective_target_vector_alignment_reachable_for_64bit { } {
3271 global et_vector_alignment_reachable_for_64bit
3273 if [info exists et_vector_alignment_reachable_for_64bit_saved] {
3274 verbose "check_effective_target_vector_alignment_reachable_for_64bit: using cached result" 2
3276 if { [check_effective_target_vect_aligned_arrays]
3277 || [check_effective_target_natural_alignment_64] } {
3278 set et_vector_alignment_reachable_for_64bit_saved 1
3280 set et_vector_alignment_reachable_for_64bit_saved 0
3283 verbose "check_effective_target_vector_alignment_reachable_for_64bit: returning $et_vector_alignment_reachable_for_64bit_saved" 2
3284 return $et_vector_alignment_reachable_for_64bit_saved
3287 # Return 1 if the target only requires element alignment for vector accesses
3289 proc check_effective_target_vect_element_align { } {
3290 global et_vect_element_align
3292 if [info exists et_vect_element_align] {
3293 verbose "check_effective_target_vect_element_align: using cached result" 2
3295 set et_vect_element_align 0
3296 if { ([istarget arm*-*-*]
3297 && ![check_effective_target_arm_vect_no_misalign])
3298 || [check_effective_target_vect_hw_misalign] } {
3299 set et_vect_element_align 1
3303 verbose "check_effective_target_vect_element_align: returning $et_vect_element_align" 2
3304 return $et_vect_element_align
3307 # Return 1 if the target supports vector conditional operations, 0 otherwise.
3309 proc check_effective_target_vect_condition { } {
3310 global et_vect_cond_saved
3312 if [info exists et_vect_cond_saved] {
3313 verbose "check_effective_target_vect_cond: using cached result" 2
3315 set et_vect_cond_saved 0
3316 if { [istarget powerpc*-*-*]
3317 || [istarget ia64-*-*]
3318 || [istarget i?86-*-*]
3319 || [istarget spu-*-*]
3320 || [istarget x86_64-*-*] } {
3321 set et_vect_cond_saved 1
3325 verbose "check_effective_target_vect_cond: returning $et_vect_cond_saved" 2
3326 return $et_vect_cond_saved
3329 # Return 1 if the target supports vector conditional operations where
3330 # the comparison has different type from the lhs, 0 otherwise.
3332 proc check_effective_target_vect_cond_mixed { } {
3333 global et_vect_cond_mixed_saved
3335 if [info exists et_vect_cond_mixed_saved] {
3336 verbose "check_effective_target_vect_cond_mixed: using cached result" 2
3338 set et_vect_cond_mixed_saved 0
3339 if { [istarget i?86-*-*]
3340 || [istarget x86_64-*-*] } {
3341 set et_vect_cond_mixed_saved 1
3345 verbose "check_effective_target_vect_cond_mixed: returning $et_vect_cond_mixed_saved" 2
3346 return $et_vect_cond_mixed_saved
3349 # Return 1 if the target supports vector char multiplication, 0 otherwise.
3351 proc check_effective_target_vect_char_mult { } {
3352 global et_vect_char_mult_saved
3354 if [info exists et_vect_char_mult_saved] {
3355 verbose "check_effective_target_vect_char_mult: using cached result" 2
3357 set et_vect_char_mult_saved 0
3358 if { [istarget ia64-*-*]
3359 || [istarget i?86-*-*]
3360 || [istarget x86_64-*-*] } {
3361 set et_vect_char_mult_saved 1
3365 verbose "check_effective_target_vect_char_mult: returning $et_vect_char_mult_saved" 2
3366 return $et_vect_char_mult_saved
3369 # Return 1 if the target supports vector short multiplication, 0 otherwise.
3371 proc check_effective_target_vect_short_mult { } {
3372 global et_vect_short_mult_saved
3374 if [info exists et_vect_short_mult_saved] {
3375 verbose "check_effective_target_vect_short_mult: using cached result" 2
3377 set et_vect_short_mult_saved 0
3378 if { [istarget ia64-*-*]
3379 || [istarget spu-*-*]
3380 || [istarget i?86-*-*]
3381 || [istarget x86_64-*-*]
3382 || [istarget powerpc*-*-*]
3383 || [check_effective_target_arm32]
3384 || ([istarget mips*-*-*]
3385 && [check_effective_target_mips_loongson]) } {
3386 set et_vect_short_mult_saved 1
3390 verbose "check_effective_target_vect_short_mult: returning $et_vect_short_mult_saved" 2
3391 return $et_vect_short_mult_saved
3394 # Return 1 if the target supports vector int multiplication, 0 otherwise.
3396 proc check_effective_target_vect_int_mult { } {
3397 global et_vect_int_mult_saved
3399 if [info exists et_vect_int_mult_saved] {
3400 verbose "check_effective_target_vect_int_mult: using cached result" 2
3402 set et_vect_int_mult_saved 0
3403 if { ([istarget powerpc*-*-*] && ![istarget powerpc-*-linux*paired*])
3404 || [istarget spu-*-*]
3405 || [istarget i?86-*-*]
3406 || [istarget x86_64-*-*]
3407 || [istarget ia64-*-*]
3408 || [check_effective_target_arm32] } {
3409 set et_vect_int_mult_saved 1
3413 verbose "check_effective_target_vect_int_mult: returning $et_vect_int_mult_saved" 2
3414 return $et_vect_int_mult_saved
3417 # Return 1 if the target supports vector even/odd elements extraction, 0 otherwise.
3419 proc check_effective_target_vect_extract_even_odd { } {
3420 global et_vect_extract_even_odd_saved
3422 if [info exists et_vect_extract_even_odd_saved] {
3423 verbose "check_effective_target_vect_extract_even_odd: using cached result" 2
3425 set et_vect_extract_even_odd_saved 0
3426 if { [istarget powerpc*-*-*]
3427 || [istarget i?86-*-*]
3428 || [istarget x86_64-*-*]
3429 || [istarget ia64-*-*]
3430 || [istarget spu-*-*] } {
3431 set et_vect_extract_even_odd_saved 1
3435 verbose "check_effective_target_vect_extract_even_odd: returning $et_vect_extract_even_odd_saved" 2
3436 return $et_vect_extract_even_odd_saved
3439 # Return 1 if the target supports vector interleaving, 0 otherwise.
3441 proc check_effective_target_vect_interleave { } {
3442 global et_vect_interleave_saved
3444 if [info exists et_vect_interleave_saved] {
3445 verbose "check_effective_target_vect_interleave: using cached result" 2
3447 set et_vect_interleave_saved 0
3448 if { [istarget powerpc*-*-*]
3449 || [istarget i?86-*-*]
3450 || [istarget x86_64-*-*]
3451 || [istarget ia64-*-*]
3452 || [istarget spu-*-*] } {
3453 set et_vect_interleave_saved 1
3457 verbose "check_effective_target_vect_interleave: returning $et_vect_interleave_saved" 2
3458 return $et_vect_interleave_saved
3461 foreach N {2 3 4 8} {
3462 eval [string map [list N $N] {
3463 # Return 1 if the target supports 2-vector interleaving
3464 proc check_effective_target_vect_stridedN { } {
3465 global et_vect_stridedN_saved
3467 if [info exists et_vect_stridedN_saved] {
3468 verbose "check_effective_target_vect_stridedN: using cached result" 2
3470 set et_vect_stridedN_saved 0
3472 && [check_effective_target_vect_interleave]
3473 && [check_effective_target_vect_extract_even_odd] } {
3474 set et_vect_stridedN_saved 1
3476 if { [istarget arm*-*-*] && N >= 2 && N <= 4 } {
3477 set et_vect_stridedN_saved 1
3481 verbose "check_effective_target_vect_stridedN: returning $et_vect_stridedN_saved" 2
3482 return $et_vect_stridedN_saved
3487 # Return 1 if the target supports multiple vector sizes
3489 proc check_effective_target_vect_multiple_sizes { } {
3490 global et_vect_multiple_sizes_saved
3492 if [info exists et_vect_multiple_sizes_saved] {
3493 verbose "check_effective_target_vect_multiple_sizes: using cached result" 2
3495 set et_vect_multiple_sizes_saved 0
3496 if { ([istarget arm*-*-*] && [check_effective_target_arm_neon]) } {
3497 set et_vect_multiple_sizes_saved 1
3501 verbose "check_effective_target_vect_multiple_sizes: returning $et_vect_multiple_sizes_saved" 2
3502 return $et_vect_multiple_sizes_saved
3505 # Return 1 if the target supports vectors of 64 bits.
3507 proc check_effective_target_vect64 { } {
3508 global et_vect64_saved
3510 if [info exists et_vect64_saved] {
3511 verbose "check_effective_target_vect64: using cached result" 2
3513 set et_vect64_saved 0
3514 if { ([istarget arm*-*-*] && [check_effective_target_arm_neon_ok]) } {
3515 set et_vect64_saved 1
3519 verbose "check_effective_target_vect64: returning $et_vect64_saved" 2
3520 return $et_vect64_saved
3523 # Return 1 if the target supports section-anchors
3525 proc check_effective_target_section_anchors { } {
3526 global et_section_anchors_saved
3528 if [info exists et_section_anchors_saved] {
3529 verbose "check_effective_target_section_anchors: using cached result" 2
3531 set et_section_anchors_saved 0
3532 if { [istarget powerpc*-*-*]
3533 || [istarget arm*-*-*] } {
3534 set et_section_anchors_saved 1
3538 verbose "check_effective_target_section_anchors: returning $et_section_anchors_saved" 2
3539 return $et_section_anchors_saved
3542 # Return 1 if the target supports atomic operations on "int_128" values.
3544 proc check_effective_target_sync_int_128 { } {
3545 global et_sync_int_128_saved
3547 if [info exists et_sync_int_128_saved] {
3548 verbose "check_effective_target_sync_int_128: using cached result" 2
3550 set et_sync_int_128_saved 0
3551 if { ([istarget x86_64-*-*] || [istarget i?86-*-*])
3552 && ![is-effective-target ia32] } {
3553 set et_sync_int_128_saved 1
3557 verbose "check_effective_target_sync_int_128: returning $et_sync_int_128_saved" 2
3558 return $et_sync_int_128_saved
3561 # Return 1 if the target supports atomic operations on "long long".
3563 proc check_effective_target_sync_long_long { } {
3564 global et_sync_long_long_saved
3566 if [info exists et_sync_long_long_saved] {
3567 verbose "check_effective_target_sync_long_long: using cached result" 2
3569 set et_sync_long_long_saved 0
3570 if { ([istarget x86_64-*-*] || [istarget i?86-*-*])
3571 && ![is-effective-target ia32] } {
3572 set et_sync_long_long_saved 1
3576 verbose "check_effective_target_sync_long_long: returning $et_sync_long_long_saved" 2
3577 return $et_sync_long_long_saved
3580 # Return 1 if the target supports atomic operations on "int" and "long".
3582 proc check_effective_target_sync_int_long { } {
3583 global et_sync_int_long_saved
3585 if [info exists et_sync_int_long_saved] {
3586 verbose "check_effective_target_sync_int_long: using cached result" 2
3588 set et_sync_int_long_saved 0
3589 # This is intentionally powerpc but not rs6000, rs6000 doesn't have the
3590 # load-reserved/store-conditional instructions.
3591 if { [istarget ia64-*-*]
3592 || [istarget i?86-*-*]
3593 || [istarget x86_64-*-*]
3594 || [istarget alpha*-*-*]
3595 || [istarget arm*-*-linux-gnueabi]
3596 || [istarget bfin*-*linux*]
3597 || [istarget hppa*-*linux*]
3598 || [istarget s390*-*-*]
3599 || [istarget powerpc*-*-*]
3600 || [istarget sparc64-*-*]
3601 || [istarget sparcv9-*-*]
3602 || [istarget mips*-*-*] } {
3603 set et_sync_int_long_saved 1
3607 verbose "check_effective_target_sync_int_long: returning $et_sync_int_long_saved" 2
3608 return $et_sync_int_long_saved
3611 # Return 1 if the target supports atomic operations on "long long" and can
3613 # So far only put checks in for ARM, others may want to add their own
3614 proc check_effective_target_sync_longlong { } {
3615 return [check_runtime sync_longlong_runtime {
3621 if (sizeof (long long) != 8)
3625 /* Just check for native; checking for kernel fallback is tricky. */
3626 asm volatile ("ldrexd r0,r1, [%0]" : : "r" (&l1) : "r0", "r1");
3628 # error "Add other suitable archs here"
3636 # Return 1 if the target supports atomic operations on "char" and "short".
3638 proc check_effective_target_sync_char_short { } {
3639 global et_sync_char_short_saved
3641 if [info exists et_sync_char_short_saved] {
3642 verbose "check_effective_target_sync_char_short: using cached result" 2
3644 set et_sync_char_short_saved 0
3645 # This is intentionally powerpc but not rs6000, rs6000 doesn't have the
3646 # load-reserved/store-conditional instructions.
3647 if { [istarget ia64-*-*]
3648 || [istarget i?86-*-*]
3649 || [istarget x86_64-*-*]
3650 || [istarget alpha*-*-*]
3651 || [istarget arm*-*-linux-gnueabi]
3652 || [istarget hppa*-*linux*]
3653 || [istarget s390*-*-*]
3654 || [istarget powerpc*-*-*]
3655 || [istarget sparc64-*-*]
3656 || [istarget sparcv9-*-*]
3657 || [istarget mips*-*-*] } {
3658 set et_sync_char_short_saved 1
3662 verbose "check_effective_target_sync_char_short: returning $et_sync_char_short_saved" 2
3663 return $et_sync_char_short_saved
3666 # Return 1 if the target uses a ColdFire FPU.
3668 proc check_effective_target_coldfire_fpu { } {
3669 return [check_no_compiler_messages coldfire_fpu assembly {
3676 # Return true if this is a uClibc target.
3678 proc check_effective_target_uclibc {} {
3679 return [check_no_compiler_messages uclibc object {
3680 #include <features.h>
3681 #if !defined (__UCLIBC__)
3687 # Return true if this is a uclibc target and if the uclibc feature
3688 # described by __$feature__ is not present.
3690 proc check_missing_uclibc_feature {feature} {
3691 return [check_no_compiler_messages $feature object "
3692 #include <features.h>
3693 #if !defined (__UCLIBC) || defined (__${feature}__)
3699 # Return true if this is a Newlib target.
3701 proc check_effective_target_newlib {} {
3702 return [check_no_compiler_messages newlib object {
3708 # (a) an error of a few ULP is expected in string to floating-point
3709 # conversion functions; and
3710 # (b) overflow is not always detected correctly by those functions.
3712 proc check_effective_target_lax_strtofp {} {
3713 # By default, assume that all uClibc targets suffer from this.
3714 return [check_effective_target_uclibc]
3717 # Return 1 if this is a target for which wcsftime is a dummy
3718 # function that always returns 0.
3720 proc check_effective_target_dummy_wcsftime {} {
3721 # By default, assume that all uClibc targets suffer from this.
3722 return [check_effective_target_uclibc]
3725 # Return 1 if constructors with initialization priority arguments are
3726 # supposed on this target.
3728 proc check_effective_target_init_priority {} {
3729 return [check_no_compiler_messages init_priority assembly "
3730 void f() __attribute__((constructor (1000)));
3735 # Return 1 if the target matches the effective target 'arg', 0 otherwise.
3736 # This can be used with any check_* proc that takes no argument and
3737 # returns only 1 or 0. It could be used with check_* procs that take
3738 # arguments with keywords that pass particular arguments.
3740 proc is-effective-target { arg } {
3742 if { [info procs check_effective_target_${arg}] != [list] } {
3743 set selected [check_effective_target_${arg}]
3746 "vmx_hw" { set selected [check_vmx_hw_available] }
3747 "vsx_hw" { set selected [check_vsx_hw_available] }
3748 "ppc_recip_hw" { set selected [check_ppc_recip_hw_available] }
3749 "named_sections" { set selected [check_named_sections_available] }
3750 "gc_sections" { set selected [check_gc_sections_available] }
3751 "cxa_atexit" { set selected [check_cxa_atexit_available] }
3752 default { error "unknown effective target keyword `$arg'" }
3755 verbose "is-effective-target: $arg $selected" 2
3759 # Return 1 if the argument is an effective-target keyword, 0 otherwise.
3761 proc is-effective-target-keyword { arg } {
3762 if { [info procs check_effective_target_${arg}] != [list] } {
3765 # These have different names for their check_* procs.
3767 "vmx_hw" { return 1 }
3768 "vsx_hw" { return 1 }
3769 "ppc_recip_hw" { return 1 }
3770 "named_sections" { return 1 }
3771 "gc_sections" { return 1 }
3772 "cxa_atexit" { return 1 }
3773 default { return 0 }
3778 # Return 1 if target default to short enums
3780 proc check_effective_target_short_enums { } {
3781 return [check_no_compiler_messages short_enums assembly {
3783 int s[sizeof (enum foo) == 1 ? 1 : -1];
3787 # Return 1 if target supports merging string constants at link time.
3789 proc check_effective_target_string_merging { } {
3790 return [check_no_messages_and_pattern string_merging \
3791 "rodata\\.str" assembly {
3792 const char *var = "String";
3796 # Return 1 if target has the basic signed and unsigned types in
3797 # <stdint.h>, 0 otherwise. This will be obsolete when GCC ensures a
3798 # working <stdint.h> for all targets.
3800 proc check_effective_target_stdint_types { } {
3801 return [check_no_compiler_messages stdint_types assembly {
3803 int8_t a; int16_t b; int32_t c; int64_t d;
3804 uint8_t e; uint16_t f; uint32_t g; uint64_t h;
3808 # Return 1 if target has the basic signed and unsigned types in
3809 # <inttypes.h>, 0 otherwise. This is for tests that GCC's notions of
3810 # these types agree with those in the header, as some systems have
3811 # only <inttypes.h>.
3813 proc check_effective_target_inttypes_types { } {
3814 return [check_no_compiler_messages inttypes_types assembly {
3815 #include <inttypes.h>
3816 int8_t a; int16_t b; int32_t c; int64_t d;
3817 uint8_t e; uint16_t f; uint32_t g; uint64_t h;
3821 # Return 1 if programs are intended to be run on a simulator
3822 # (i.e. slowly) rather than hardware (i.e. fast).
3824 proc check_effective_target_simulator { } {
3826 # All "src/sim" simulators set this one.
3827 if [board_info target exists is_simulator] {
3828 return [board_info target is_simulator]
3831 # The "sid" simulators don't set that one, but at least they set
3833 if [board_info target exists slow_simulator] {
3834 return [board_info target slow_simulator]
3840 # Return 1 if the target is a VxWorks kernel.
3842 proc check_effective_target_vxworks_kernel { } {
3843 return [check_no_compiler_messages vxworks_kernel assembly {
3844 #if !defined __vxworks || defined __RTP__
3850 # Return 1 if the target is a VxWorks RTP.
3852 proc check_effective_target_vxworks_rtp { } {
3853 return [check_no_compiler_messages vxworks_rtp assembly {
3854 #if !defined __vxworks || !defined __RTP__
3860 # Return 1 if the target is expected to provide wide character support.
3862 proc check_effective_target_wchar { } {
3863 if {[check_missing_uclibc_feature UCLIBC_HAS_WCHAR]} {
3866 return [check_no_compiler_messages wchar assembly {
3871 # Return 1 if the target has <pthread.h>.
3873 proc check_effective_target_pthread_h { } {
3874 return [check_no_compiler_messages pthread_h assembly {
3875 #include <pthread.h>
3879 # Return 1 if the target can truncate a file from a file-descriptor,
3880 # as used by libgfortran/io/unix.c:fd_truncate; i.e. ftruncate or
3881 # chsize. We test for a trivially functional truncation; no stubs.
3882 # As libgfortran uses _FILE_OFFSET_BITS 64, we do too; it'll cause a
3883 # different function to be used.
3885 proc check_effective_target_fd_truncate { } {
3887 #define _FILE_OFFSET_BITS 64
3893 FILE *f = fopen ("tst.tmp", "wb");
3895 const char t[] = "test writing more than ten characters";
3899 write (fd, t, sizeof (t) - 1);
3901 if (ftruncate (fd, 10) != 0)
3910 f = fopen ("tst.tmp", "rb");
3911 if (fread (s, 1, sizeof (s), f) != 10 || strncmp (s, t, 10) != 0)
3919 if { [check_runtime ftruncate $prog] } {
3923 regsub "ftruncate" $prog "chsize" prog
3924 return [check_runtime chsize $prog]
3927 # Add to FLAGS all the target-specific flags needed to access the c99 runtime.
3929 proc add_options_for_c99_runtime { flags } {
3930 if { [istarget *-*-solaris2*] } {
3931 return "$flags -std=c99"
3933 if { [istarget mips-sgi-irix6.5*] } {
3934 return "$flags -std=c99"
3936 if { [istarget powerpc-*-darwin*] } {
3937 return "$flags -mmacosx-version-min=10.3"
3942 # Add to FLAGS all the target-specific flags needed to enable
3943 # full IEEE compliance mode.
3945 proc add_options_for_ieee { flags } {
3946 if { [istarget alpha*-*-*]
3947 || [istarget sh*-*-*] } {
3948 return "$flags -mieee"
3950 if { [istarget rx-*-*] } {
3951 return "$flags -mnofpu"
3956 # Add to FLAGS the flags needed to enable functions to bind locally
3957 # when using pic/PIC passes in the testsuite.
3959 proc add_options_for_bind_pic_locally { flags } {
3960 if {[check_no_compiler_messages using_pic2 assembly {
3965 return "$flags -fPIE"
3967 if {[check_no_compiler_messages using_pic1 assembly {
3972 return "$flags -fpie"
3978 # Add to FLAGS the flags needed to enable 64-bit vectors.
3980 proc add_options_for_double_vectors { flags } {
3981 if [is-effective-target arm_neon_ok] {
3982 return "$flags -mvectorize-with-neon-double"
3988 # Return 1 if the target provides a full C99 runtime.
3990 proc check_effective_target_c99_runtime { } {
3991 return [check_cached_effective_target c99_runtime {
3994 set file [open "$srcdir/gcc.dg/builtins-config.h"]
3995 set contents [read $file]
3998 #ifndef HAVE_C99_RUNTIME
4002 check_no_compiler_messages_nocache c99_runtime assembly \
4003 $contents [add_options_for_c99_runtime ""]
4007 # Return 1 if target wchar_t is at least 4 bytes.
4009 proc check_effective_target_4byte_wchar_t { } {
4010 return [check_no_compiler_messages 4byte_wchar_t object {
4011 int dummy[sizeof (__WCHAR_TYPE__) >= 4 ? 1 : -1];
4015 # Return 1 if the target supports automatic stack alignment.
4017 proc check_effective_target_automatic_stack_alignment { } {
4018 # Ordinarily x86 supports automatic stack alignment ...
4019 if { [istarget i?86*-*-*] || [istarget x86_64-*-*] } then {
4020 if { [istarget *-*-mingw*] || [istarget *-*-cygwin*] } {
4021 # ... except Win64 SEH doesn't. Succeed for Win32 though.
4022 return [check_effective_target_ilp32];
4029 # Return 1 if avx instructions can be compiled.
4031 proc check_effective_target_avx { } {
4032 return [check_no_compiler_messages avx object {
4033 void _mm256_zeroall (void)
4035 __builtin_ia32_vzeroall ();
4040 # Return 1 if sse instructions can be compiled.
4041 proc check_effective_target_sse { } {
4042 return [check_no_compiler_messages sse object {
4045 __builtin_ia32_stmxcsr ();
4051 # Return 1 if sse2 instructions can be compiled.
4052 proc check_effective_target_sse2 { } {
4053 return [check_no_compiler_messages sse2 object {
4054 typedef long long __m128i __attribute__ ((__vector_size__ (16)));
4056 __m128i _mm_srli_si128 (__m128i __A, int __N)
4058 return (__m128i)__builtin_ia32_psrldqi128 (__A, 8);
4063 # Return 1 if F16C instructions can be compiled.
4065 proc check_effective_target_f16c { } {
4066 return [check_no_compiler_messages f16c object {
4067 #include "immintrin.h"
4069 foo (unsigned short val)
4071 return _cvtsh_ss (val);
4076 # Return 1 if C wchar_t type is compatible with char16_t.
4078 proc check_effective_target_wchar_t_char16_t_compatible { } {
4079 return [check_no_compiler_messages wchar_t_char16_t object {
4081 __CHAR16_TYPE__ *p16 = &wc;
4082 char t[(((__CHAR16_TYPE__) -1) < 0 == ((__WCHAR_TYPE__) -1) < 0) ? 1 : -1];
4086 # Return 1 if C wchar_t type is compatible with char32_t.
4088 proc check_effective_target_wchar_t_char32_t_compatible { } {
4089 return [check_no_compiler_messages wchar_t_char32_t object {
4091 __CHAR32_TYPE__ *p32 = &wc;
4092 char t[(((__CHAR32_TYPE__) -1) < 0 == ((__WCHAR_TYPE__) -1) < 0) ? 1 : -1];
4096 # Return 1 if pow10 function exists.
4098 proc check_effective_target_pow10 { } {
4099 return [check_runtime pow10 {
4109 # Return 1 if current options generate DFP instructions, 0 otherwise.
4111 proc check_effective_target_hard_dfp {} {
4112 return [check_no_messages_and_pattern hard_dfp "!adddd3" assembly {
4113 typedef float d64 __attribute__((mode(DD)));
4115 void foo (void) { z = x + y; }
4119 # Return 1 if string.h and wchar.h headers provide C++ requires overloads
4120 # for strchr etc. functions.
4122 proc check_effective_target_correct_iso_cpp_string_wchar_protos { } {
4123 return [check_no_compiler_messages correct_iso_cpp_string_wchar_protos assembly {
4126 #if !defined(__cplusplus) \
4127 || !defined(__CORRECT_ISO_CPP_STRING_H_PROTO) \
4128 || !defined(__CORRECT_ISO_CPP_WCHAR_H_PROTO)
4129 ISO C++ correct string.h and wchar.h protos not supported.
4136 # Return 1 if GNU as is used.
4138 proc check_effective_target_gas { } {
4139 global use_gas_saved
4142 if {![info exists use_gas_saved]} {
4143 # Check if the as used by gcc is GNU as.
4144 set gcc_as [lindex [${tool}_target_compile "-print-prog-name=as" "" "none" ""] 0]
4145 # Provide /dev/null as input, otherwise gas times out reading from
4147 set status [remote_exec host "$gcc_as" "-v /dev/null"]
4148 set as_output [lindex $status 1]
4149 if { [ string first "GNU" $as_output ] >= 0 } {
4155 return $use_gas_saved
4158 # Return 1 if GNU ld is used.
4160 proc check_effective_target_gld { } {
4161 global use_gld_saved
4164 if {![info exists use_gld_saved]} {
4165 # Check if the ld used by gcc is GNU ld.
4166 set gcc_ld [lindex [${tool}_target_compile "-print-prog-name=ld" "" "none" ""] 0]
4167 set status [remote_exec host "$gcc_ld" "--version"]
4168 set ld_output [lindex $status 1]
4169 if { [ string first "GNU" $ld_output ] >= 0 } {
4175 return $use_gld_saved
4178 # Return 1 if the compiler has been configure with link-time optimization
4181 proc check_effective_target_lto { } {
4183 return [info exists ENABLE_LTO]
4186 # Return 1 if this target supports the -fsplit-stack option, 0
4189 proc check_effective_target_split_stack {} {
4190 return [check_no_compiler_messages split_stack object {
4195 # Return 1 if the language for the compiler under test is C.
4197 proc check_effective_target_c { } {
4199 if [string match $tool "gcc"] {
4205 # Return 1 if the language for the compiler under test is C++.
4207 proc check_effective_target_c++ { } {
4209 if [string match $tool "g++"] {
4215 # Return 1 if expensive testcases should be run.
4217 proc check_effective_target_run_expensive_tests { } {
4218 if { [getenv GCC_TEST_RUN_EXPENSIVE] != "" } {
4224 # Returns 1 if "mempcpy" is available on the target system.
4226 proc check_effective_target_mempcpy {} {
4227 return [check_function_available "mempcpy"]
4230 # Check whether the vectorizer tests are supported by the target and
4231 # append additional target-dependent compile flags to DEFAULT_VECTCFLAGS.
4232 # Set dg-do-what-default to either compile or run, depending on target
4233 # capabilities. Return 1 if vectorizer tests are supported by
4234 # target, 0 otherwise.
4236 proc check_vect_support_and_set_flags { } {
4237 global DEFAULT_VECTCFLAGS
4238 global dg-do-what-default
4240 if [istarget powerpc-*paired*] {
4241 lappend DEFAULT_VECTCFLAGS "-mpaired"
4242 if [check_750cl_hw_available] {
4243 set dg-do-what-default run
4245 set dg-do-what-default compile
4247 } elseif [istarget powerpc*-*-*] {
4248 # Skip targets not supporting -maltivec.
4249 if ![is-effective-target powerpc_altivec_ok] {
4253 lappend DEFAULT_VECTCFLAGS "-maltivec"
4254 if [check_vsx_hw_available] {
4255 lappend DEFAULT_VECTCFLAGS "-mvsx" "-mno-allow-movmisalign"
4258 if [check_vmx_hw_available] {
4259 set dg-do-what-default run
4261 if [is-effective-target ilp32] {
4262 # Specify a cpu that supports VMX for compile-only tests.
4263 lappend DEFAULT_VECTCFLAGS "-mcpu=970"
4265 set dg-do-what-default compile
4267 } elseif { [istarget spu-*-*] } {
4268 set dg-do-what-default run
4269 } elseif { [istarget i?86-*-*] || [istarget x86_64-*-*] } {
4270 lappend DEFAULT_VECTCFLAGS "-msse2"
4271 if { [check_effective_target_sse2_runtime] } {
4272 set dg-do-what-default run
4274 set dg-do-what-default compile
4276 } elseif { [istarget mips*-*-*]
4277 && ([check_effective_target_mpaired_single]
4278 || [check_effective_target_mips_loongson])
4279 && [check_effective_target_nomips16] } {
4280 if { [check_effective_target_mpaired_single] } {
4281 lappend DEFAULT_VECTCFLAGS "-mpaired-single"
4283 set dg-do-what-default run
4284 } elseif [istarget sparc*-*-*] {
4285 lappend DEFAULT_VECTCFLAGS "-mcpu=ultrasparc" "-mvis"
4286 if [check_effective_target_ultrasparc_hw] {
4287 set dg-do-what-default run
4289 set dg-do-what-default compile
4291 } elseif [istarget alpha*-*-*] {
4292 # Alpha's vectorization capabilities are extremely limited.
4293 # It's more effort than its worth disabling all of the tests
4294 # that it cannot pass. But if you actually want to see what
4295 # does work, command out the return.
4298 lappend DEFAULT_VECTCFLAGS "-mmax"
4299 if [check_alpha_max_hw_available] {
4300 set dg-do-what-default run
4302 set dg-do-what-default compile
4304 } elseif [istarget ia64-*-*] {
4305 set dg-do-what-default run
4306 } elseif [is-effective-target arm_neon_ok] {
4307 eval lappend DEFAULT_VECTCFLAGS [add_options_for_arm_neon ""]
4308 # NEON does not support denormals, so is not used for vectorization by
4309 # default to avoid loss of precision. We must pass -ffast-math to test
4310 # vectorization of float operations.
4311 lappend DEFAULT_VECTCFLAGS "-ffast-math"
4312 if [is-effective-target arm_neon_hw] {
4313 set dg-do-what-default run
4315 set dg-do-what-default compile
4324 proc check_effective_target_non_strict_align {} {
4325 return [check_no_compiler_messages non_strict_align assembly {
4327 typedef char __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))) c;
4329 void foo(void) { z = (c *) y; }