1 # Copyright
(C
) 1999, 2001, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
2 # 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 # and
"// ObjC++" for ObjC++
38 #
If the tool is ObjC
/ObjC
++ then we overide the extension to .m
/.mm to
39 # allow
for ObjC
/ObjC
++ specific flags.
40 proc check_compile
{basename type contents
args} {
42 verbose
"check_compile tool: $tool for $basename"
44 if { [llength $
args] > 0 } {
45 set options
[list
"additional_flags=[lindex $args 0]"]
49 switch -glob
-- $contents
{
50 "*! Fortran*" { set src ${basename}[pid].f90 }
51 "*// C++*" { set src ${basename}[pid].cc }
52 "*// ObjC++*" { set src ${basename}[pid].mm }
53 "*/* ObjC*" { set src ${basename}[pid].m }
56 "objc" { set src ${basename}[pid].m }
57 "obj-c++" { set src ${basename}[pid].mm }
58 default
{ set src $
{basename
}[pid
].c
}
63 set compile_type $type
65 assembly
{ set output $
{basename
}[pid
].s
}
66 object
{ set output $
{basename
}[pid
].o
}
67 executable
{ set output $
{basename
}[pid
].exe
}
69 set output $
{basename
}[pid
].s
70 lappend options
"additional_flags=-fdump-$type"
71 set compile_type assembly
77 set lines
[$
{tool
}_target_compile $src $output $compile_type
"$options"]
80 set scan_output $output
81 # Don
't try folding this into the switch above; calling "glob" before the
82 # file is created won't work.
83 if [regexp
"rtl-(.*)" $type dummy rtl_type] {
84 set scan_output
"[glob $src.\[0-9\]\[0-9\]\[0-9\]r.$rtl_type]"
88 return [list $lines $scan_output
]
91 proc current_target_name
{ } {
93 if [info exists target_info
(target
,name)] {
94 set answer $target_info
(target
,name)
101 # Implement an effective
-target check
for property PROP by invoking
102 # the Tcl command
ARGS and seeing
if it returns true.
104 proc check_cached_effective_target
{ prop
args } {
107 set target
[current_target_name
]
108 if {![info exists et_cache
($prop
,target
)]
109 || $et_cache
($prop
,target
) != $target
} {
110 verbose
"check_cached_effective_target $prop: checking $target" 2
111 set et_cache
($prop
,target
) $target
112 set et_cache
($prop
,value
) [uplevel eval $
args]
114 set value $et_cache
($prop
,value
)
115 verbose
"check_cached_effective_target $prop: returning $value for $target" 2
119 # Like check_compile
, but
delete the output file and
return true
if the
120 # compiler printed no messages.
121 proc check_no_compiler_messages_nocache
{args} {
122 set result
[eval check_compile $
args]
123 set lines
[lindex $result
0]
124 set output
[lindex $result
1]
125 remote_file build
delete $output
126 return [string match
"" $lines]
129 # Like check_no_compiler_messages_nocache
, but
cache the result.
130 # PROP is the
property we
're checking, and doubles as a prefix for
131 # temporary filenames.
132 proc check_no_compiler_messages {prop args} {
133 return [check_cached_effective_target $prop {
134 eval [list check_no_compiler_messages_nocache $prop] $args
138 # Like check_compile, but return true if the compiler printed no
139 # messages and if the contents of the output file satisfy PATTERN.
140 # If PATTERN has the form "!REGEXP", the contents satisfy it if they
141 # don't match regular expression REGEXP
, otherwise they satisfy it
142 #
if they
do match regular expression PATTERN.
(PATTERN can start
143 # with something like
"[!]" if the regular expression needs to match
144 #
"!" as the first character.)
146 #
Delete the output file before returning. The other arguments are
147 # as
for check_compile.
148 proc check_no_messages_and_pattern_nocache
{basename pattern
args} {
151 set result
[eval
[list check_compile $basename
] $
args]
152 set lines
[lindex $result
0]
153 set output
[lindex $result
1]
156 if { [string match
"" $lines] } {
157 set chan
[open
"$output"]
158 set invert
[regexp
{^
!(.
*)} $pattern dummy pattern
]
159 set ok
[expr
{ [regexp $pattern
[read $chan
]] != $invert
}]
163 remote_file build
delete $output
167 # Like check_no_messages_and_pattern_nocache
, but
cache the result.
168 # PROP is the
property we
're checking, and doubles as a prefix for
169 # temporary filenames.
170 proc check_no_messages_and_pattern {prop pattern args} {
171 return [check_cached_effective_target $prop {
172 eval [list check_no_messages_and_pattern_nocache $prop $pattern] $args
176 # Try to compile and run an executable from code CONTENTS. Return true
177 # if the compiler reports no messages and if execution "passes" in the
178 # usual DejaGNU sense. The arguments are as for check_compile, with
179 # TYPE implicitly being "executable".
180 proc check_runtime_nocache {basename contents args} {
183 set result [eval [list check_compile $basename executable $contents] $args]
184 set lines [lindex $result 0]
185 set output [lindex $result 1]
188 if { [string match "" $lines] } {
189 # No error messages, everything is OK.
190 set result [remote_load target "./$output" "" ""]
191 set status [lindex $result 0]
192 verbose "check_runtime_nocache $basename: status is <$status>" 2
193 if { $status == "pass" } {
197 remote_file build delete $output
201 # Like check_runtime_nocache, but cache the result. PROP is the
202 # property we're checking
, and doubles as a prefix
for temporary
204 proc check_runtime
{prop
args} {
207 return [check_cached_effective_target $prop
{
208 eval
[list check_runtime_nocache $prop
] $
args
212 ###############################
213 # proc check_weak_available
{ }
214 ###############################
216 # weak symbols are only supported in some configs
/object formats
217 # this proc returns
1 if they
're supported, 0 if they're not
, or
-1 if unsure
219 proc check_weak_available
{ } {
220 global target_triplet
223 # All mips targets should support it
225 if { [ string first
"mips" $target_cpu ] >= 0 } {
229 # All solaris2 targets should support it
231 if { [regexp
".*-solaris2.*" $target_triplet] } {
235 # DEC OSF
/1/Digital UNIX
/Tru64 UNIX supports it
237 if { [regexp
"alpha.*osf.*" $target_triplet] } {
241 # Windows targets Cygwin and MingW32 support it
243 if { [regexp
".*mingw32|.*cygwin" $target_triplet] } {
247 # HP
-UX
10.X doesn
't support it
249 if { [istarget "hppa*-*-hpux10*"] } {
253 # ELF and ECOFF support it. a.out does with gas/gld but may also with
254 # other linkers, so we should try it
256 set objformat [gcc_target_object_format]
264 unknown { return -1 }
269 ###############################
270 # proc check_weak_override_available { }
271 ###############################
273 # Like check_weak_available, but return 0 if weak symbol definitions
274 # cannot be overridden.
276 proc check_weak_override_available { } {
277 if { [istarget "*-*-mingw*"] } {
280 return [check_weak_available]
283 ###############################
284 # proc check_visibility_available { what_kind }
285 ###############################
287 # The visibility attribute is only support in some object formats
288 # This proc returns 1 if it is supported, 0 if not.
289 # The argument is the kind of visibility, default/protected/hidden/internal.
291 proc check_visibility_available { what_kind } {
293 global target_triplet
295 # On NetWare, support makes no sense.
296 if { [istarget *-*-netware*] } {
300 if [string match "" $what_kind] { set what_kind "hidden" }
302 return [check_no_compiler_messages visibility_available_$what_kind object "
303 void f() __attribute__((visibility(\"$what_kind\")));
308 ###############################
309 # proc check_alias_available { }
310 ###############################
312 # Determine if the target toolchain supports the alias attribute.
314 # Returns 2 if the target supports aliases. Returns 1 if the target
315 # only supports weak aliased. Returns 0 if the target does not
316 # support aliases at all. Returns -1 if support for aliases could not
319 proc check_alias_available { } {
320 global alias_available_saved
323 if [info exists alias_available_saved] {
324 verbose "check_alias_available returning saved $alias_available_saved" 2
328 verbose "check_alias_available compiling testfile $src" 2
329 set f [open $src "w"]
330 # Compile a small test program. The definition of "g" is
331 # necessary to keep the Solaris assembler from complaining
333 puts $f "#ifdef __cplusplus\nextern \"C\"\n#endif\n"
334 puts $f "void g() {} void f() __attribute__((alias(\"g\")));"
336 set lines [${tool}_target_compile $src $obj object ""]
338 remote_file build delete $obj
340 if [string match "" $lines] then {
341 # No error messages, everything is OK.
342 set alias_available_saved 2
344 if [regexp "alias definitions not supported" $lines] {
345 verbose "check_alias_available target does not support aliases" 2
347 set objformat [gcc_target_object_format]
349 if { $objformat == "elf" } {
350 verbose "check_alias_available but target uses ELF format, so it ought to" 2
351 set alias_available_saved -1
353 set alias_available_saved 0
356 if [regexp "only weak aliases are supported" $lines] {
357 verbose "check_alias_available target supports only weak aliases" 2
358 set alias_available_saved 1
360 set alias_available_saved -1
365 verbose "check_alias_available returning $alias_available_saved" 2
368 return $alias_available_saved
371 # Returns true if --gc-sections is supported on the target.
373 proc check_gc_sections_available { } {
374 global gc_sections_available_saved
377 if {![info exists gc_sections_available_saved]} {
378 # Some targets don't support gc
-sections despite whatever
's
379 # advertised by ld's options.
380 if { [istarget alpha
*-*-*]
381 ||
[istarget ia64
-*-*] } {
382 set gc_sections_available_saved
0
386 # elf2flt uses
-q
(--emit
-relocs
), which is incompatible with
388 if { [board_info target
exists ldflags
]
389 && [regexp
" -elf2flt\[ =\]" " [board_info target ldflags] "] } {
390 set gc_sections_available_saved
0
394 # VxWorks kernel modules are relocatable objects linked with
-r
,
395 #
while RTP executables are linked with
-q
(--emit
-relocs
).
396 # Both of these options are incompatible with
--gc
-sections.
397 if { [istarget
*-*-vxworks
*] } {
398 set gc_sections_available_saved
0
402 # Check
if the
ld used by gcc supports
--gc
-sections.
403 set gcc_spec
[$
{tool
}_target_compile
"-dumpspecs" "" "none" ""]
404 regsub
".*\n\\*linker:\[ \t\]*\n(\[^ \t\n\]*).*" "$gcc_spec" {\1} linker
405 set gcc_ld
[lindex
[$
{tool
}_target_compile
"-print-prog-name=$linker" "" "none" ""] 0]
406 set ld_output
[remote_exec host
"$gcc_ld" "--help"]
407 if { [ string first
"--gc-sections" $ld_output ] >= 0 } {
408 set gc_sections_available_saved
1
410 set gc_sections_available_saved
0
413 return $gc_sections_available_saved
416 #
Return 1 if according to target_info struct and explicit target list
417 # target is supposed to support trampolines.
419 proc check_effective_target_trampolines
{ } {
420 if [target_info
exists no_trampolines
] {
423 if { [istarget avr
-*-*]
424 ||
[istarget hppa2.0w
-hp
-hpux11.23
]
425 ||
[istarget hppa64
-hp
-hpux11.23
] } {
431 #
Return 1 if according to target_info struct and explicit target list
432 # target is supposed to keep null pointer checks. This could be due to
433 # use of option fno
-delete-null
-pointer
-checks or hardwired in target.
435 proc check_effective_target_keeps_null_pointer_checks
{ } {
436 if [target_info
exists keeps_null_pointer_checks
] {
439 if { [istarget avr
-*-*] } {
445 #
Return true
if profiling is supported
on the target.
447 proc check_profiling_available
{ test_what
} {
448 global profiling_available_saved
450 verbose
"Profiling argument is <$test_what>" 1
452 # These conditions depend
on the
argument so examine them before
453 # looking at the
cache variable.
455 # Support
for -p
on solaris2 relies
on mcrt1.o which comes with the
456 # vendor compiler. We cannot reliably predict the directory where the
457 # vendor compiler
(and thus mcrt1.o
) is installed so we can
't
458 # necessarily find mcrt1.o even if we have it.
459 if { [istarget *-*-solaris2*] && [lindex $test_what 1] == "-p" } {
463 # Support for -p on irix relies on libprof1.a which doesn't appear to
464 # exist
on any irix6
system currently posting testsuite results.
465 # Support
for -pg
on irix relies
on gcrt1.o which doesn
't exist yet.
466 # See: http://gcc.gnu.org/ml/gcc/2002-10/msg00169.html
467 if { [istarget mips*-*-irix*]
468 && ([lindex $test_what 1] == "-p" || [lindex $test_what 1] == "-pg") } {
472 # We don't yet support profiling
for MIPS16.
473 if { [istarget mips
*-*-*]
474 && ![check_effective_target_nomips16
]
475 && ([lindex $test_what
1] == "-p"
476 ||
[lindex $test_what
1] == "-pg") } {
480 # MinGW does not support
-p.
481 if { [istarget
*-*-mingw
*] && [lindex $test_what
1] == "-p" } {
485 # cygwin does not support
-p.
486 if { [istarget
*-*-cygwin
*] && [lindex $test_what
1] == "-p" } {
490 # uClibc does not have gcrt1.o.
491 if { [check_effective_target_uclibc
]
492 && ([lindex $test_what
1] == "-p"
493 ||
[lindex $test_what
1] == "-pg") } {
497 # Now examine the
cache variable.
498 if {![info exists profiling_available_saved
]} {
499 # Some targets don
't have any implementation of __bb_init_func or are
500 # missing other needed machinery.
501 if { [istarget mmix-*-*]
502 || [istarget arm*-*-eabi*]
503 || [istarget picochip-*-*]
504 || [istarget *-*-netware*]
505 || [istarget arm*-*-elf]
506 || [istarget arm*-*-symbianelf*]
507 || [istarget avr-*-*]
508 || [istarget bfin-*-*]
509 || [istarget powerpc-*-eabi*]
510 || [istarget powerpc-*-elf]
511 || [istarget cris-*-*]
512 || [istarget crisv32-*-*]
513 || [istarget fido-*-elf]
514 || [istarget h8300-*-*]
515 || [istarget lm32-*-*]
516 || [istarget m32c-*-elf]
517 || [istarget m68k-*-elf]
518 || [istarget m68k-*-uclinux*]
519 || [istarget mep-*-elf]
520 || [istarget mips*-*-elf*]
521 || [istarget moxie-*-elf*]
523 || [istarget xstormy16-*]
524 || [istarget xtensa*-*-elf]
525 || [istarget *-*-rtems*]
526 || [istarget *-*-vxworks*] } {
527 set profiling_available_saved 0
529 set profiling_available_saved 1
533 return $profiling_available_saved
536 # Check to see if a target is "freestanding". This is as per the definition
537 # in Section 4 of C99 standard. Effectively, it is a target which supports no
538 # extra headers or libraries other than what is considered essential.
539 proc check_effective_target_freestanding { } {
540 if { [istarget picochip-*-*] } then {
547 # Return 1 if target has packed layout of structure members by
548 # default, 0 otherwise. Note that this is slightly different than
549 # whether the target has "natural alignment": both attributes may be
552 proc check_effective_target_default_packed { } {
553 return [check_no_compiler_messages default_packed assembly {
554 struct x { char a; long b; } c;
555 int s[sizeof (c) == sizeof (char) + sizeof (long) ? 1 : -1];
559 # Return 1 if target has PCC_BITFIELD_TYPE_MATTERS defined. See
560 # documentation, where the test also comes from.
562 proc check_effective_target_pcc_bitfield_type_matters { } {
563 # PCC_BITFIELD_TYPE_MATTERS isn't just about unnamed or empty
564 # bitfields
, but let
's stick to the example code from the docs.
565 return [check_no_compiler_messages pcc_bitfield_type_matters assembly {
566 struct foo1 { char x; char :0; char y; };
567 struct foo2 { char x; int :0; char y; };
568 int s[sizeof (struct foo1) != sizeof (struct foo2) ? 1 : -1];
572 # Add to FLAGS all the target-specific flags needed to use thread-local storage.
574 proc add_options_for_tls { flags } {
575 # On Solaris 8 and 9, __tls_get_addr/___tls_get_addr only lives in
576 # libthread, so always pass -pthread for native TLS.
577 # Need to duplicate native TLS check from
578 # check_effective_target_tls_native to avoid recursion.
579 if { [istarget *-*-solaris2.\[89\]*] &&
580 [check_no_messages_and_pattern tls_native "!emutls" assembly {
582 int f (void) { return i; }
583 void g (int j) { i = j; }
585 return "$flags -pthread"
590 # Return 1 if thread local storage (TLS) is supported, 0 otherwise.
592 proc check_effective_target_tls {} {
593 return [check_no_compiler_messages tls assembly {
595 int f (void) { return i; }
596 void g (int j) { i = j; }
600 # Return 1 if *native* thread local storage (TLS) is supported, 0 otherwise.
602 proc check_effective_target_tls_native {} {
603 # VxWorks uses emulated TLS machinery, but with non-standard helper
604 # functions, so we fail to automatically detect it.
605 global target_triplet
606 if { [regexp ".*-.*-vxworks.*" $target_triplet] } {
610 return [check_no_messages_and_pattern tls_native "!emutls" assembly {
612 int f (void) { return i; }
613 void g (int j) { i = j; }
617 # Return 1 if TLS executables can run correctly, 0 otherwise.
619 proc check_effective_target_tls_runtime {} {
620 return [check_runtime tls_runtime {
621 __thread int thr = 0;
622 int main (void) { return thr; }
626 # Return 1 if compilation with -fgraphite is error-free for trivial
629 proc check_effective_target_fgraphite {} {
630 return [check_no_compiler_messages fgraphite object {
635 # Return 1 if compilation with -fopenmp is error-free for trivial
638 proc check_effective_target_fopenmp {} {
639 return [check_no_compiler_messages fopenmp object {
644 # Return 1 if compilation with -pthread is error-free for trivial
647 proc check_effective_target_pthread {} {
648 return [check_no_compiler_messages pthread object {
653 # Return 1 if compilation with -mpe-aligned-commons is error-free
654 # for trivial code, 0 otherwise.
656 proc check_effective_target_pe_aligned_commons {} {
657 if { [istarget *-*-cygwin*] || [istarget *-*-mingw*] } {
658 return [check_no_compiler_messages pe_aligned_commons object {
660 } "-mpe-aligned-commons"]
665 # Return 1 if the target supports -static
666 proc check_effective_target_static {} {
667 return [check_no_compiler_messages static executable {
668 int main (void) { return 0; }
672 # Return 1 if the target supports -fstack-protector
673 proc check_effective_target_fstack_protector {} {
674 return [check_runtime fstack_protector {
675 int main (void) { return 0; }
676 } "-fstack-protector"]
679 # Return 1 if compilation with -freorder-blocks-and-partition is error-free
680 # for trivial code, 0 otherwise.
682 proc check_effective_target_freorder {} {
683 return [check_no_compiler_messages freorder object {
685 } "-freorder-blocks-and-partition"]
688 # Return 1 if -fpic and -fPIC are supported, as in no warnings or errors
689 # emitted, 0 otherwise. Whether a shared library can actually be built is
690 # out of scope for this test.
692 proc check_effective_target_fpic { } {
693 # Note that M68K has a multilib that supports -fpic but not
694 # -fPIC, so we need to check both. We test with a program that
695 # requires GOT references.
696 foreach arg {fpic fPIC} {
697 if [check_no_compiler_messages $arg object {
698 extern int foo (void); extern int bar;
699 int baz (void) { return foo () + bar; }
707 # Return true if the target supports -mpaired-single (as used on MIPS).
709 proc check_effective_target_mpaired_single { } {
710 return [check_no_compiler_messages mpaired_single object {
715 # Return true if the target has access to FPU instructions.
717 proc check_effective_target_hard_float { } {
718 if { [istarget mips*-*-*] } {
719 return [check_no_compiler_messages hard_float assembly {
720 #if (defined __mips_soft_float || defined __mips16)
726 # This proc is actually checking the availabilty of FPU
727 # support for doubles, so on the RX we must fail if the
728 # 64-bit double multilib has been selected.
729 if { [istarget rx-*-*] } {
731 # return [check_no_compiler_messages hard_float assembly {
732 #if defined __RX_64_BIT_DOUBLES__
738 # The generic test equates hard_float with "no call for adding doubles".
739 return [check_no_messages_and_pattern hard_float "!\\(call" rtl-expand {
740 double a (double b, double c) { return b + c; }
744 # Return true if the target is a 64-bit MIPS target.
746 proc check_effective_target_mips64 { } {
747 return [check_no_compiler_messages mips64 assembly {
754 # Return true if the target is a MIPS target that does not produce
757 proc check_effective_target_nomips16 { } {
758 return [check_no_compiler_messages nomips16 object {
762 /* A cheap way of testing for -mflip-mips16. */
763 void foo (void) { asm ("addiu $20,$20,1"); }
764 void bar (void) { asm ("addiu $20,$20,1"); }
769 # Add the options needed for MIPS16 function attributes. At the moment,
770 # we don't support MIPS16 PIC.
772 proc add_options_for_mips16_attribute
{ flags
} {
773 return "$flags -mno-abicalls -fno-pic -DMIPS16=__attribute__((mips16))"
776 #
Return true
if we can force a
mode that allows MIPS16 code generation.
777 # We don
't support MIPS16 PIC, and only support MIPS16 -mhard-float
780 proc check_effective_target_mips16_attribute { } {
781 return [check_no_compiler_messages mips16_attribute assembly {
785 #if defined __mips_hard_float \
786 && (!defined _ABIO32 || _MIPS_SIM != _ABIO32) \
787 && (!defined _ABIO64 || _MIPS_SIM != _ABIO64)
790 } [add_options_for_mips16_attribute ""]]
793 # Return 1 if the target supports long double larger than double when
794 # using the new ABI, 0 otherwise.
796 proc check_effective_target_mips_newabi_large_long_double { } {
797 return [check_no_compiler_messages mips_newabi_large_long_double object {
798 int dummy[sizeof(long double) > sizeof(double) ? 1 : -1];
802 # Return 1 if the current multilib does not generate PIC by default.
804 proc check_effective_target_nonpic { } {
805 return [check_no_compiler_messages nonpic assembly {
812 # Return 1 if the target does not use a status wrapper.
814 proc check_effective_target_unwrapped { } {
815 if { [target_info needs_status_wrapper] != "" \
816 && [target_info needs_status_wrapper] != "0" } {
822 # Return true if iconv is supported on the target. In particular IBM1047.
824 proc check_iconv_available { test_what } {
827 # If the tool configuration file has not set libiconv, try "-liconv"
828 if { ![info exists libiconv] } {
829 set libiconv "-liconv"
831 set test_what [lindex $test_what 1]
832 return [check_runtime_nocache $test_what [subst {
838 cd = iconv_open ("$test_what", "UTF-8");
839 if (cd == (iconv_t) -1)
846 # Return true if named sections are supported on this target.
848 proc check_named_sections_available { } {
849 return [check_no_compiler_messages named_sections assembly {
850 int __attribute__ ((section("whatever"))) foo;
854 # Return 1 if the target supports Fortran real kinds larger than real(8),
857 # When the target name changes, replace the cached result.
859 proc check_effective_target_fortran_large_real { } {
860 return [check_no_compiler_messages fortran_large_real executable {
862 integer,parameter :: k = selected_real_kind (precision (0.0_8) + 1)
869 # Return 1 if the target supports Fortran integer kinds larger than
870 # integer(8), 0 otherwise.
872 # When the target name changes, replace the cached result.
874 proc check_effective_target_fortran_large_int { } {
875 return [check_no_compiler_messages fortran_large_int executable {
877 integer,parameter :: k = selected_int_kind (range (0_8) + 1)
883 # Return 1 if the target supports Fortran integer(16), 0 otherwise.
885 # When the target name changes, replace the cached result.
887 proc check_effective_target_fortran_integer_16 { } {
888 return [check_no_compiler_messages fortran_integer_16 executable {
895 # Return 1 if we can statically link libgfortran, 0 otherwise.
897 # When the target name changes, replace the cached result.
899 proc check_effective_target_static_libgfortran { } {
900 return [check_no_compiler_messages static_libgfortran executable {
907 proc check_linker_plugin_available { } {
908 return [check_no_compiler_messages_nocache linker_plugin executable {
909 int main() { return 0; }
910 } "-flto -fuse-linker-plugin"]
913 # Return 1 if the target supports executing 750CL paired-single instructions, 0
914 # otherwise. Cache the result.
916 proc check_750cl_hw_available { } {
917 return [check_cached_effective_target 750cl_hw_available {
918 # If this is not the right target then we can skip the test.
919 if { ![istarget powerpc-*paired*] } {
922 check_runtime_nocache 750cl_hw_available {
926 asm volatile ("ps_mul v0,v0,v0");
928 asm volatile ("ps_mul 0,0,0");
937 # Return 1 if the target OS supports running SSE executables, 0
938 # otherwise. Cache the result.
940 proc check_sse_os_support_available { } {
941 return [check_cached_effective_target sse_os_support_available {
942 # If this is not the right target then we can skip the test.
943 if { !([istarget x86_64-*-*] || [istarget i?86-*-*]) } {
945 } elseif { [istarget i?86-*-solaris2*] } {
946 # The Solaris 2 kernel doesn't save and restore SSE registers
947 # before Solaris
9 4/04. Before that
, executables die with SIGILL.
948 check_runtime_nocache sse_os_support_available
{
951 __asm__ volatile
("movss %xmm2,%xmm1");
961 #
Return 1 if the target supports executing SSE instructions
, 0
962 # otherwise.
Cache the result.
964 proc check_sse_hw_available
{ } {
965 return [check_cached_effective_target sse_hw_available
{
966 #
If this is not the right target
then we can skip the test.
967 if { !([istarget x86_64
-*-*] ||
[istarget i?
86-*-*]) } {
970 check_runtime_nocache sse_hw_available
{
974 unsigned
int eax
, ebx
, ecx
, edx
;
975 if (__get_cpuid
(1, &eax
, &ebx
, &ecx
, &edx
))
976 return !(edx
& bit_SSE
);
984 #
Return 1 if the target supports executing SSE2 instructions
, 0
985 # otherwise.
Cache the result.
987 proc check_sse2_hw_available
{ } {
988 return [check_cached_effective_target sse2_hw_available
{
989 #
If this is not the right target
then we can skip the test.
990 if { !([istarget x86_64
-*-*] ||
[istarget i?
86-*-*]) } {
993 check_runtime_nocache sse2_hw_available
{
997 unsigned
int eax
, ebx
, ecx
, edx
;
998 if (__get_cpuid
(1, &eax
, &ebx
, &ecx
, &edx
))
999 return !(edx
& bit_SSE2
);
1007 #
Return 1 if the target supports executing AVX instructions
, 0
1008 # otherwise.
Cache the result.
1010 proc check_avx_hw_available
{ } {
1011 return [check_cached_effective_target avx_hw_available
{
1012 #
If this is not the right target
then we can skip the test.
1013 if { !([istarget x86_64
-*-*] ||
[istarget i?
86-*-*]) } {
1016 check_runtime_nocache avx_hw_available
{
1020 unsigned
int eax
, ebx
, ecx
, edx
;
1021 if (__get_cpuid
(1, &eax
, &ebx
, &ecx
, &edx
))
1022 return ((ecx
& (bit_AVX | bit_OSXSAVE
))
1023 != (bit_AVX | bit_OSXSAVE
));
1031 #
Return 1 if the target supports running SSE executables
, 0 otherwise.
1033 proc check_effective_target_sse_runtime
{ } {
1034 if { [check_effective_target_sse
]
1035 && [check_sse_hw_available
]
1036 && [check_sse_os_support_available
] } {
1042 #
Return 1 if the target supports running SSE2 executables
, 0 otherwise.
1044 proc check_effective_target_sse2_runtime
{ } {
1045 if { [check_effective_target_sse2
]
1046 && [check_sse2_hw_available
]
1047 && [check_sse_os_support_available
] } {
1053 #
Return 1 if the target supports running AVX executables
, 0 otherwise.
1055 proc check_effective_target_avx_runtime
{ } {
1056 if { [check_effective_target_avx
]
1057 && [check_avx_hw_available
] } {
1063 #
Return 1 if the target supports executing VSX instructions
, 0
1064 # otherwise.
Cache the result.
1066 proc check_vsx_hw_available
{ } {
1067 return [check_cached_effective_target vsx_hw_available
{
1068 # Some simulators are known to not support VSX instructions.
1069 #
For now
, disable
on Darwin
1070 if { [istarget powerpc
-*-eabi
] ||
[istarget powerpc
*-*-eabispe
] ||
[istarget
*-*-darwin
*]} {
1074 check_runtime_nocache vsx_hw_available
{
1078 asm volatile
("xxlor vs0,vs0,vs0");
1080 asm volatile
("xxlor 0,0,0");
1089 #
Return 1 if the target supports executing AltiVec instructions
, 0
1090 # otherwise.
Cache the result.
1092 proc check_vmx_hw_available
{ } {
1093 return [check_cached_effective_target vmx_hw_available
{
1094 # Some simulators are known to not support VMX instructions.
1095 if { [istarget powerpc
-*-eabi
] ||
[istarget powerpc
*-*-eabispe
] } {
1098 # Most targets don
't require special flags for this test case, but
1099 # Darwin does. Just to be sure, make sure VSX is not enabled for
1100 # the altivec tests.
1101 if { [istarget *-*-darwin*]
1102 || [istarget *-*-aix*] } {
1103 set options "-maltivec -mno-vsx"
1105 set options "-mno-vsx"
1107 check_runtime_nocache vmx_hw_available {
1111 asm volatile ("vor v0,v0,v0");
1113 asm volatile ("vor 0,0,0");
1122 proc check_ppc_recip_hw_available { } {
1123 return [check_cached_effective_target ppc_recip_hw_available {
1124 # Some simulators may not support FRE/FRES/FRSQRTE/FRSQRTES
1125 # For now, disable on Darwin
1126 if { [istarget powerpc-*-eabi] || [istarget powerpc*-*-eabispe] || [istarget *-*-darwin*]} {
1129 set options "-mpowerpc-gfxopt -mpowerpc-gpopt -mpopcntb"
1130 check_runtime_nocache ppc_recip_hw_available {
1131 volatile double d_recip, d_rsqrt, d_four = 4.0;
1132 volatile float f_recip, f_rsqrt, f_four = 4.0f;
1135 asm volatile ("fres %0,%1" : "=f" (f_recip) : "f" (f_four));
1136 asm volatile ("fre %0,%1" : "=d" (d_recip) : "d" (d_four));
1137 asm volatile ("frsqrtes %0,%1" : "=f" (f_rsqrt) : "f" (f_four));
1138 asm volatile ("frsqrte %0,%1" : "=f" (d_rsqrt) : "d" (d_four));
1146 # Return 1 if the target supports executing AltiVec and Cell PPU
1147 # instructions, 0 otherwise. Cache the result.
1149 proc check_effective_target_cell_hw { } {
1150 return [check_cached_effective_target cell_hw_available {
1151 # Some simulators are known to not support VMX and PPU instructions.
1152 if { [istarget powerpc-*-eabi*] } {
1155 # Most targets don't require special flags
for this test
1156 # case
, but Darwin and AIX
do.
1157 if { [istarget
*-*-darwin
*]
1158 ||
[istarget
*-*-aix
*] } {
1159 set options
"-maltivec -mcpu=cell"
1161 set options
"-mcpu=cell"
1163 check_runtime_nocache cell_hw_available
{
1167 asm volatile
("vor v0,v0,v0");
1168 asm volatile
("lvlx v0,r0,r0");
1170 asm volatile
("vor 0,0,0");
1171 asm volatile
("lvlx 0,0,0");
1180 #
Return 1 if the target supports executing
64-bit instructions
, 0
1181 # otherwise.
Cache the result.
1183 proc check_effective_target_powerpc64
{ } {
1184 global powerpc64_available_saved
1187 if [info exists powerpc64_available_saved
] {
1188 verbose
"check_effective_target_powerpc64 returning saved $powerpc64_available_saved" 2
1190 set powerpc64_available_saved
0
1192 # Some simulators are known to not support powerpc64 instructions.
1193 if { [istarget powerpc
-*-eabi
*] ||
[istarget powerpc
-ibm
-aix
*] } {
1194 verbose
"check_effective_target_powerpc64 returning 0" 2
1195 return $powerpc64_available_saved
1198 #
Set up
, compile, and
execute a test
program containing a
64-bit
1199 # instruction.
Include the current process ID in the file
1200 # names to prevent conflicts with invocations
for multiple
1205 set f
[open $src
"w"]
1206 puts $f
"int main() {"
1207 puts $f
"#ifdef __MACH__"
1208 puts $f
" asm volatile (\"extsw r0,r0\");"
1210 puts $f
" asm volatile (\"extsw 0,0\");"
1212 puts $f
" return 0; }"
1215 set opts
"additional_flags=-mcpu=G5"
1217 verbose
"check_effective_target_powerpc64 compiling testfile $src" 2
1218 set lines
[$
{tool
}_target_compile $src $exe executable
"$opts"]
1221 if [string match
"" $lines] then {
1222 # No error message
, compilation succeeded.
1223 set result
[$
{tool
}_load
"./$exe" "" ""]
1224 set status [lindex $result
0]
1225 remote_file build
delete $exe
1226 verbose
"check_effective_target_powerpc64 testfile status is <$status>" 2
1228 if { $
status == "pass" } then {
1229 set powerpc64_available_saved
1
1232 verbose
"check_effective_target_powerpc64 testfile compilation failed" 2
1236 return $powerpc64_available_saved
1239 # GCC
3.4.0 for powerpc64
-*-linux
* included an ABI fix
for passing
1240 # complex float arguments. This affects gfortran tests that
call cabsf
1241 # in libm built by an earlier compiler.
Return 1 if libm uses the same
1242 #
argument passing as the compiler under test
, 0 otherwise.
1244 # When the target
name changes
, replace the cached result.
1246 proc check_effective_target_broken_cplxf_arg
{ } {
1247 return [check_cached_effective_target broken_cplxf_arg
{
1248 # Skip the work
for targets known not to be affected.
1249 if { ![istarget powerpc64
-*-linux
*] } {
1251 } elseif
{ ![is
-effective
-target lp64
] } {
1254 check_runtime_nocache broken_cplxf_arg
{
1255 #
include <complex.h
>
1256 extern void abort
(void
);
1257 float fabsf
(float
);
1258 float cabsf
(_Complex float
);
1265 if (fabsf
(f
- 5.0) > 0.0001)
1274 proc check_alpha_max_hw_available
{ } {
1275 return [check_runtime alpha_max_hw_available
{
1276 int main
() { return __builtin_alpha_amask
(1<<8) != 0; }
1280 # Returns true iff the FUNCTION is available
on the target
system.
1281 #
(This is essentially a Tcl implementation of Autoconf
's
1284 proc check_function_available { function } {
1285 return [check_no_compiler_messages ${function}_available \
1291 int main () { $function (); }
1295 # Returns true iff "fork" is available on the target system.
1297 proc check_fork_available {} {
1298 return [check_function_available "fork"]
1301 # Returns true iff "mkfifo" is available on the target system.
1303 proc check_mkfifo_available {} {
1304 if {[istarget *-*-cygwin*]} {
1305 # Cygwin has mkfifo, but support is incomplete.
1309 return [check_function_available "mkfifo"]
1312 # Returns true iff "__cxa_atexit" is used on the target system.
1314 proc check_cxa_atexit_available { } {
1315 return [check_cached_effective_target cxa_atexit_available {
1316 if { [istarget "hppa*-*-hpux10*"] } {
1317 # HP-UX 10 doesn't have __cxa_atexit but subsequent test passes.
1319 } elseif
{ [istarget
"*-*-vxworks"] } {
1320 # vxworks doesn
't have __cxa_atexit but subsequent test passes.
1323 check_runtime_nocache cxa_atexit_available {
1326 static unsigned int count;
1343 Y() { f(); count = 2; }
1352 int main() { return 0; }
1358 proc check_effective_target_objc2 { } {
1359 return [check_no_compiler_messages objc2 object {
1368 proc check_effective_target_next_runtime { } {
1369 return [check_no_compiler_messages objc2 object {
1370 #ifdef __NEXT_RUNTIME__
1378 # Return 1 if we're generating
32-bit code using default options
, 0
1381 proc check_effective_target_ilp32
{ } {
1382 return [check_no_compiler_messages ilp32 object
{
1383 int dummy
[sizeof
(int) == 4
1384 && sizeof
(void
*) == 4
1385 && sizeof
(long
) == 4 ?
1 : -1];
1389 #
Return 1 if we
're generating 32-bit or larger integers using default
1390 # options, 0 otherwise.
1392 proc check_effective_target_int32plus { } {
1393 return [check_no_compiler_messages int32plus object {
1394 int dummy[sizeof (int) >= 4 ? 1 : -1];
1398 # Return 1 if we're generating
32-bit or larger pointers using default
1399 # options
, 0 otherwise.
1401 proc check_effective_target_ptr32plus
{ } {
1402 return [check_no_compiler_messages ptr32plus object
{
1403 int dummy
[sizeof
(void
*) >= 4 ?
1 : -1];
1407 #
Return 1 if we support
32-bit or larger array and structure sizes
1408 # using default options
, 0 otherwise.
1410 proc check_effective_target_size32plus
{ } {
1411 return [check_no_compiler_messages size32plus object
{
1416 # Returns
1 if we
're generating 16-bit or smaller integers with the
1417 # default options, 0 otherwise.
1419 proc check_effective_target_int16 { } {
1420 return [check_no_compiler_messages int16 object {
1421 int dummy[sizeof (int) < 4 ? 1 : -1];
1425 # Return 1 if we're generating
64-bit code using default options
, 0
1428 proc check_effective_target_lp64
{ } {
1429 return [check_no_compiler_messages lp64 object
{
1430 int dummy
[sizeof
(int) == 4
1431 && sizeof
(void
*) == 8
1432 && sizeof
(long
) == 8 ?
1 : -1];
1436 #
Return 1 if we
're generating 64-bit code using default llp64 options,
1439 proc check_effective_target_llp64 { } {
1440 return [check_no_compiler_messages llp64 object {
1441 int dummy[sizeof (int) == 4
1442 && sizeof (void *) == 8
1443 && sizeof (long long) == 8
1444 && sizeof (long) == 4 ? 1 : -1];
1448 # Return 1 if the target supports long double larger than double,
1451 proc check_effective_target_large_long_double { } {
1452 return [check_no_compiler_messages large_long_double object {
1453 int dummy[sizeof(long double) > sizeof(double) ? 1 : -1];
1457 # Return 1 if the target supports double larger than float,
1460 proc check_effective_target_large_double { } {
1461 return [check_no_compiler_messages large_double object {
1462 int dummy[sizeof(double) > sizeof(float) ? 1 : -1];
1466 # Return 1 if the target supports double of 64 bits,
1469 proc check_effective_target_double64 { } {
1470 return [check_no_compiler_messages double64 object {
1471 int dummy[sizeof(double) == 8 ? 1 : -1];
1475 # Return 1 if the target supports double of at least 64 bits,
1478 proc check_effective_target_double64plus { } {
1479 return [check_no_compiler_messages double64plus object {
1480 int dummy[sizeof(double) >= 8 ? 1 : -1];
1484 # Return 1 if the target supports compiling fixed-point,
1487 proc check_effective_target_fixed_point { } {
1488 return [check_no_compiler_messages fixed_point object {
1489 _Sat _Fract x; _Sat _Accum y;
1493 # Return 1 if the target supports compiling decimal floating point,
1496 proc check_effective_target_dfp_nocache { } {
1497 verbose "check_effective_target_dfp_nocache: compiling source" 2
1498 set ret [check_no_compiler_messages_nocache dfp object {
1499 float x __attribute__((mode(DD)));
1501 verbose "check_effective_target_dfp_nocache: returning $ret" 2
1505 proc check_effective_target_dfprt_nocache { } {
1506 return [check_runtime_nocache dfprt {
1507 typedef float d64 __attribute__((mode(DD)));
1508 d64 x = 1.2df, y = 2.3dd, z;
1509 int main () { z = x + y; return 0; }
1513 # Return 1 if the target supports compiling Decimal Floating Point,
1516 # This won't change
for different subtargets so
cache the result.
1518 proc check_effective_target_dfp
{ } {
1519 return [check_cached_effective_target dfp
{
1520 check_effective_target_dfp_nocache
1524 #
Return 1 if the target supports linking and executing Decimal Floating
1525 # Point
, 0 otherwise.
1527 # This won
't change for different subtargets so cache the result.
1529 proc check_effective_target_dfprt { } {
1530 return [check_cached_effective_target dfprt {
1531 check_effective_target_dfprt_nocache
1535 # Return 1 if the target supports compiling and assembling UCN, 0 otherwise.
1537 proc check_effective_target_ucn_nocache { } {
1538 # -std=c99 is only valid for C
1539 if [check_effective_target_c] {
1540 set ucnopts "-std=c99"
1542 append ucnopts " -fextended-identifiers"
1543 verbose "check_effective_target_ucn_nocache: compiling source" 2
1544 set ret [check_no_compiler_messages_nocache ucn object {
1547 verbose "check_effective_target_ucn_nocache: returning $ret" 2
1551 # Return 1 if the target supports compiling and assembling UCN, 0 otherwise.
1553 # This won't change
for different subtargets
, so
cache the result.
1555 proc check_effective_target_ucn
{ } {
1556 return [check_cached_effective_target ucn
{
1557 check_effective_target_ucn_nocache
1561 #
Return 1 if the target needs a command line
argument to enable a SIMD
1564 proc check_effective_target_vect_cmdline_needed
{ } {
1565 global et_vect_cmdline_needed_saved
1566 global et_vect_cmdline_needed_target_name
1568 if { ![info exists et_vect_cmdline_needed_target_name
] } {
1569 set et_vect_cmdline_needed_target_name
""
1572 #
If the target has changed since we
set the cached value
, clear it.
1573 set current_target
[current_target_name
]
1574 if { $current_target
!= $et_vect_cmdline_needed_target_name
} {
1575 verbose
"check_effective_target_vect_cmdline_needed: `$et_vect_cmdline_needed_target_name' `$current_target'" 2
1576 set et_vect_cmdline_needed_target_name $current_target
1577 if { [info exists et_vect_cmdline_needed_saved
] } {
1578 verbose
"check_effective_target_vect_cmdline_needed: removing cached result" 2
1579 unset et_vect_cmdline_needed_saved
1583 if [info exists et_vect_cmdline_needed_saved
] {
1584 verbose
"check_effective_target_vect_cmdline_needed: using cached result" 2
1586 set et_vect_cmdline_needed_saved
1
1587 if { [istarget alpha
*-*-*]
1588 ||
[istarget ia64
-*-*]
1589 ||
(([istarget x86_64
-*-*] ||
[istarget i?
86-*-*])
1590 && [check_effective_target_lp64
])
1591 ||
([istarget powerpc
*-*-*]
1592 && ([check_effective_target_powerpc_spe
]
1593 ||
[check_effective_target_powerpc_altivec
]))
1594 ||
[istarget spu
-*-*]
1595 ||
([istarget arm
*-*-*] && [check_effective_target_arm_neon
]) } {
1596 set et_vect_cmdline_needed_saved
0
1600 verbose
"check_effective_target_vect_cmdline_needed: returning $et_vect_cmdline_needed_saved" 2
1601 return $et_vect_cmdline_needed_saved
1604 #
Return 1 if the target supports hardware vectors of
int, 0 otherwise.
1606 # This won
't change for different subtargets so cache the result.
1608 proc check_effective_target_vect_int { } {
1609 global et_vect_int_saved
1611 if [info exists et_vect_int_saved] {
1612 verbose "check_effective_target_vect_int: using cached result" 2
1614 set et_vect_int_saved 0
1615 if { [istarget i?86-*-*]
1616 || ([istarget powerpc*-*-*]
1617 && ![istarget powerpc-*-linux*paired*])
1618 || [istarget spu-*-*]
1619 || [istarget x86_64-*-*]
1620 || [istarget sparc*-*-*]
1621 || [istarget alpha*-*-*]
1622 || [istarget ia64-*-*]
1623 || [check_effective_target_arm32] } {
1624 set et_vect_int_saved 1
1628 verbose "check_effective_target_vect_int: returning $et_vect_int_saved" 2
1629 return $et_vect_int_saved
1632 # Return 1 if the target supports signed int->float conversion
1635 proc check_effective_target_vect_intfloat_cvt { } {
1636 global et_vect_intfloat_cvt_saved
1638 if [info exists et_vect_intfloat_cvt_saved] {
1639 verbose "check_effective_target_vect_intfloat_cvt: using cached result" 2
1641 set et_vect_intfloat_cvt_saved 0
1642 if { [istarget i?86-*-*]
1643 || ([istarget powerpc*-*-*]
1644 && ![istarget powerpc-*-linux*paired*])
1645 || [istarget x86_64-*-*] } {
1646 set et_vect_intfloat_cvt_saved 1
1650 verbose "check_effective_target_vect_intfloat_cvt: returning $et_vect_intfloat_cvt_saved" 2
1651 return $et_vect_intfloat_cvt_saved
1654 #Return 1 if we're supporting __int128
for target
, 0 otherwise.
1656 proc check_effective_target_int128
{ } {
1657 return [check_no_compiler_messages int128 object
{
1659 #ifndef __SIZEOF_INT128__
1668 #
Return 1 if the target supports unsigned
int->float conversion
1671 proc check_effective_target_vect_uintfloat_cvt
{ } {
1672 global et_vect_uintfloat_cvt_saved
1674 if [info exists et_vect_uintfloat_cvt_saved
] {
1675 verbose
"check_effective_target_vect_uintfloat_cvt: using cached result" 2
1677 set et_vect_uintfloat_cvt_saved
0
1678 if { [istarget i?
86-*-*]
1679 ||
([istarget powerpc
*-*-*]
1680 && ![istarget powerpc
-*-linux
*paired
*])
1681 ||
[istarget x86_64
-*-*] } {
1682 set et_vect_uintfloat_cvt_saved
1
1686 verbose
"check_effective_target_vect_uintfloat_cvt: returning $et_vect_uintfloat_cvt_saved" 2
1687 return $et_vect_uintfloat_cvt_saved
1691 #
Return 1 if the target supports signed float
->int conversion
1694 proc check_effective_target_vect_floatint_cvt
{ } {
1695 global et_vect_floatint_cvt_saved
1697 if [info exists et_vect_floatint_cvt_saved
] {
1698 verbose
"check_effective_target_vect_floatint_cvt: using cached result" 2
1700 set et_vect_floatint_cvt_saved
0
1701 if { [istarget i?
86-*-*]
1702 ||
([istarget powerpc
*-*-*]
1703 && ![istarget powerpc
-*-linux
*paired
*])
1704 ||
[istarget x86_64
-*-*] } {
1705 set et_vect_floatint_cvt_saved
1
1709 verbose
"check_effective_target_vect_floatint_cvt: returning $et_vect_floatint_cvt_saved" 2
1710 return $et_vect_floatint_cvt_saved
1713 #
Return 1 if the target supports unsigned float
->int conversion
1716 proc check_effective_target_vect_floatuint_cvt
{ } {
1717 global et_vect_floatuint_cvt_saved
1719 if [info exists et_vect_floatuint_cvt_saved
] {
1720 verbose
"check_effective_target_vect_floatuint_cvt: using cached result" 2
1722 set et_vect_floatuint_cvt_saved
0
1723 if { ([istarget powerpc
*-*-*]
1724 && ![istarget powerpc
-*-linux
*paired
*]) } {
1725 set et_vect_floatuint_cvt_saved
1
1729 verbose
"check_effective_target_vect_floatuint_cvt: returning $et_vect_floatuint_cvt_saved" 2
1730 return $et_vect_floatuint_cvt_saved
1733 #
Return 1 is this is an arm target using
32-bit instructions
1734 proc check_effective_target_arm32
{ } {
1735 return [check_no_compiler_messages arm32 assembly
{
1736 #
if !defined
(__arm__
) ||
(defined
(__thumb__
) && !defined
(__thumb2__
))
1742 #
Return 1 if this is an ARM target supporting
-mfpu
=vfp
1743 #
-mfloat
-abi
=softfp. Some multilibs may be incompatible with these
1746 proc check_effective_target_arm_vfp_ok
{ } {
1747 if { [check_effective_target_arm32
] } {
1748 return [check_no_compiler_messages arm_vfp_ok object
{
1750 } "-mfpu=vfp -mfloat-abi=softfp"]
1756 #
Return 1 if this is an ARM target supporting
-mfpu
=vfp
1757 #
-mfloat
-abi
=hard. Some multilibs may be incompatible with these
1760 proc check_effective_target_arm_hard_vfp_ok
{ } {
1761 if { [check_effective_target_arm32
] } {
1762 return [check_no_compiler_messages arm_hard_vfp_ok executable
{
1763 int main
() { return 0;}
1764 } "-mfpu=vfp -mfloat-abi=hard"]
1770 # Add the options needed
for NEON. We need either
-mfloat
-abi
=softfp
1771 # or
-mfloat
-abi
=hard
, but
if one is already specified by the
1772 # multilib
, use it. Similarly
, if a
-mfpu option already enables
1773 # NEON
, do not add
-mfpu
=neon.
1775 proc add_options_for_arm_neon
{ flags
} {
1776 if { ! [check_effective_target_arm_neon_ok
] } {
1779 global et_arm_neon_flags
1780 return "$flags $et_arm_neon_flags"
1783 #
Return 1 if this is an ARM target supporting
-mfpu
=neon
1784 #
-mfloat
-abi
=softfp or equivalent options. Some multilibs may be
1785 # incompatible with these options. Also
set et_arm_neon_flags to the
1786 # best options to add.
1788 proc check_effective_target_arm_neon_ok_nocache
{ } {
1789 global et_arm_neon_flags
1790 set et_arm_neon_flags
""
1791 if { [check_effective_target_arm32
] } {
1792 foreach flags
{"" "-mfloat-abi=softfp" "-mfpu=neon" "-mfpu=neon -mfloat-abi=softfp"} {
1793 if { [check_no_compiler_messages_nocache arm_neon_ok object
{
1794 #
include "arm_neon.h"
1797 set et_arm_neon_flags $flags
1806 proc check_effective_target_arm_neon_ok
{ } {
1807 return [check_cached_effective_target arm_neon_ok \
1808 check_effective_target_arm_neon_ok_nocache
]
1811 # Add the options needed
for NEON. We need either
-mfloat
-abi
=softfp
1812 # or
-mfloat
-abi
=hard
, but
if one is already specified by the
1815 proc add_options_for_arm_neon_fp16
{ flags
} {
1816 if { ! [check_effective_target_arm_neon_fp16_ok
] } {
1819 global et_arm_neon_fp16_flags
1820 return "$flags $et_arm_neon_fp16_flags"
1823 #
Return 1 if this is an ARM target supporting
-mfpu
=neon
-fp16
1824 #
-mfloat
-abi
=softfp or equivalent options. Some multilibs may be
1825 # incompatible with these options. Also
set et_arm_neon_flags to the
1826 # best options to add.
1828 proc check_effective_target_arm_neon_fp16_ok_nocache
{ } {
1829 global et_arm_neon_fp16_flags
1830 set et_arm_neon_fp16_flags
""
1831 if { [check_effective_target_arm32
] } {
1832 # Always add
-mfpu
=neon
-fp16
, since there is no preprocessor
1833 # macro
for FP16 support.
1834 foreach flags
{"-mfpu=neon-fp16" "-mfpu=neon-fp16 -mfloat-abi=softfp"} {
1835 if { [check_no_compiler_messages_nocache arm_neon_fp16_ok object
{
1836 #
include "arm_neon.h"
1839 set et_arm_neon_fp16_flags $flags
1848 proc check_effective_target_arm_neon_fp16_ok
{ } {
1849 return [check_cached_effective_target arm_neon_fp16_ok \
1850 check_effective_target_arm_neon_fp16_ok_nocache
]
1853 #
Return 1 is this is an ARM target where
-mthumb causes Thumb
-1 to be
1856 proc check_effective_target_arm_thumb1_ok
{ } {
1857 return [check_no_compiler_messages arm_thumb1_ok assembly
{
1858 #
if !defined
(__arm__
) ||
!defined
(__thumb__
) || defined
(__thumb2__
)
1864 #
Return 1 is this is an ARM target where
-mthumb causes Thumb
-2 to be
1867 proc check_effective_target_arm_thumb2_ok
{ } {
1868 return [check_no_compiler_messages arm_thumb2_ok assembly
{
1869 #
if !defined
(__thumb2__
)
1875 #
Return 1 if the target supports executing NEON instructions
, 0
1876 # otherwise.
Cache the result.
1878 proc check_effective_target_arm_neon_hw
{ } {
1879 return [check_runtime arm_neon_hw_available
{
1883 long long a
= 0, b
= 1;
1884 asm
("vorr %P0, %P1, %P2"
1886 : "0" (a), "w" (b));
1889 } [add_options_for_arm_neon
""]]
1892 #
Return 1 if this is a ARM target with NEON enabled.
1894 proc check_effective_target_arm_neon
{ } {
1895 if { [check_effective_target_arm32
] } {
1896 return [check_no_compiler_messages arm_neon object
{
1897 #ifndef __ARM_NEON__
1908 #
Return 1 if this a Loongson
-2E or
-2F target using an ABI that supports
1909 # the Loongson vector modes.
1911 proc check_effective_target_mips_loongson
{ } {
1912 return [check_no_compiler_messages loongson assembly
{
1913 #
if !defined
(__mips_loongson_vector_rev
)
1919 #
Return 1 if this is an ARM target that adheres to the ABI
for the ARM
1922 proc check_effective_target_arm_eabi
{ } {
1923 return [check_no_compiler_messages arm_eabi object
{
1924 #ifndef __ARM_EABI__
1932 #
Return 1 if this is an ARM target supporting
-mcpu
=iwmmxt.
1933 # Some multilibs may be incompatible with this option.
1935 proc check_effective_target_arm_iwmmxt_ok
{ } {
1936 if { [check_effective_target_arm32
] } {
1937 return [check_no_compiler_messages arm_iwmmxt_ok object
{
1945 #
Return 1 if this is a PowerPC target with floating
-point registers.
1947 proc check_effective_target_powerpc_fprs
{ } {
1948 if { [istarget powerpc
*-*-*]
1949 ||
[istarget rs6000
-*-*] } {
1950 return [check_no_compiler_messages powerpc_fprs object
{
1962 #
Return 1 if this is a PowerPC target with hardware double
-precision
1965 proc check_effective_target_powerpc_hard_double
{ } {
1966 if { [istarget powerpc
*-*-*]
1967 ||
[istarget rs6000
-*-*] } {
1968 return [check_no_compiler_messages powerpc_hard_double object
{
1980 #
Return 1 if this is a PowerPC target supporting
-maltivec.
1982 proc check_effective_target_powerpc_altivec_ok
{ } {
1983 if { ([istarget powerpc
*-*-*]
1984 && ![istarget powerpc
-*-linux
*paired
*])
1985 ||
[istarget rs6000
-*-*] } {
1986 # AltiVec is not supported
on AIX before
5.3.
1987 if { [istarget powerpc
*-*-aix4
*]
1988 ||
[istarget powerpc
*-*-aix5.1
*]
1989 ||
[istarget powerpc
*-*-aix5.2
*] } {
1992 return [check_no_compiler_messages powerpc_altivec_ok object
{
2000 #
Return 1 if this is a PowerPC target supporting
-mvsx
2002 proc check_effective_target_powerpc_vsx_ok
{ } {
2003 if { ([istarget powerpc
*-*-*]
2004 && ![istarget powerpc
-*-linux
*paired
*])
2005 ||
[istarget rs6000
-*-*] } {
2006 # AltiVec is not supported
on AIX before
5.3.
2007 if { [istarget powerpc
*-*-aix4
*]
2008 ||
[istarget powerpc
*-*-aix5.1
*]
2009 ||
[istarget powerpc
*-*-aix5.2
*] } {
2012 return [check_no_compiler_messages powerpc_vsx_ok object
{
2015 asm volatile
("xxlor vs0,vs0,vs0");
2017 asm volatile
("xxlor 0,0,0");
2027 #
Return 1 if this is a PowerPC target supporting
-mcpu
=cell.
2029 proc check_effective_target_powerpc_ppu_ok
{ } {
2030 if [check_effective_target_powerpc_altivec_ok
] {
2031 return [check_no_compiler_messages cell_asm_available object
{
2034 asm volatile
("lvlx v0,v0,v0");
2036 asm volatile
("lvlx 0,0,0");
2046 #
Return 1 if this is a PowerPC target that supports SPU.
2048 proc check_effective_target_powerpc_spu
{ } {
2049 if [istarget powerpc
*-*-linux
*] {
2050 return [check_effective_target_powerpc_altivec_ok
]
2056 #
Return 1 if this is a PowerPC SPE target. The check includes options
2057 # specified by dg
-options
for this test
, so don
't cache the result.
2059 proc check_effective_target_powerpc_spe_nocache { } {
2060 if { [istarget powerpc*-*-*] } {
2061 return [check_no_compiler_messages_nocache powerpc_spe object {
2067 } [current_compiler_flags]]
2073 # Return 1 if this is a PowerPC target with SPE enabled.
2075 proc check_effective_target_powerpc_spe { } {
2076 if { [istarget powerpc*-*-*] } {
2077 return [check_no_compiler_messages powerpc_spe object {
2089 # Return 1 if this is a PowerPC target with Altivec enabled.
2091 proc check_effective_target_powerpc_altivec { } {
2092 if { [istarget powerpc*-*-*] } {
2093 return [check_no_compiler_messages powerpc_altivec object {
2105 # Return 1 if this is a PowerPC 405 target. The check includes options
2106 # specified by dg-options for this test, so don't
cache the result.
2108 proc check_effective_target_powerpc_405_nocache
{ } {
2109 if { [istarget powerpc
*-*-*] ||
[istarget rs6000
-*-*] } {
2110 return [check_no_compiler_messages_nocache powerpc_405 object
{
2116 } [current_compiler_flags
]]
2122 #
Return 1 if this is a SPU target with a toolchain that
2123 # supports automatic overlay generation.
2125 proc check_effective_target_spu_auto_overlay
{ } {
2126 if { [istarget spu
*-*-elf
*] } {
2127 return [check_no_compiler_messages spu_auto_overlay executable
{
2129 } "-Wl,--auto-overlay" ]
2135 # The VxWorks SPARC simulator accepts only EM_SPARC executables and
2136 # chokes
on EM_SPARC32PLUS or EM_SPARCV9 executables.
Return 1 if the
2137 # test environment appears to run executables
on such a simulator.
2139 proc check_effective_target_ultrasparc_hw
{ } {
2140 return [check_runtime ultrasparc_hw
{
2141 int main
() { return 0; }
2142 } "-mcpu=ultrasparc"]
2145 #
Return 1 if the target supports hardware vector shift operation.
2147 proc check_effective_target_vect_shift
{ } {
2148 global et_vect_shift_saved
2150 if [info exists et_vect_shift_saved
] {
2151 verbose
"check_effective_target_vect_shift: using cached result" 2
2153 set et_vect_shift_saved
0
2154 if { ([istarget powerpc
*-*-*]
2155 && ![istarget powerpc
-*-linux
*paired
*])
2156 ||
[istarget ia64
-*-*]
2157 ||
[istarget i?
86-*-*]
2158 ||
[istarget x86_64
-*-*]
2159 ||
[check_effective_target_arm32
] } {
2160 set et_vect_shift_saved
1
2164 verbose
"check_effective_target_vect_shift: returning $et_vect_shift_saved" 2
2165 return $et_vect_shift_saved
2168 #
Return 1 if the target supports hardware vectors of long
, 0 otherwise.
2170 # This can change
for different subtargets so
do not
cache the result.
2172 proc check_effective_target_vect_long
{ } {
2173 if { [istarget i?
86-*-*]
2174 ||
(([istarget powerpc
*-*-*]
2175 && ![istarget powerpc
-*-linux
*paired
*])
2176 && [check_effective_target_ilp32
])
2177 ||
[istarget x86_64
-*-*]
2178 ||
[check_effective_target_arm32
]
2179 ||
([istarget sparc
*-*-*] && [check_effective_target_ilp32
]) } {
2185 verbose
"check_effective_target_vect_long: returning $answer" 2
2189 #
Return 1 if the target supports hardware vectors of float
, 0 otherwise.
2191 # This won
't change for different subtargets so cache the result.
2193 proc check_effective_target_vect_float { } {
2194 global et_vect_float_saved
2196 if [info exists et_vect_float_saved] {
2197 verbose "check_effective_target_vect_float: using cached result" 2
2199 set et_vect_float_saved 0
2200 if { [istarget i?86-*-*]
2201 || [istarget powerpc*-*-*]
2202 || [istarget spu-*-*]
2203 || [istarget mipsisa64*-*-*]
2204 || [istarget x86_64-*-*]
2205 || [istarget ia64-*-*]
2206 || [check_effective_target_arm32] } {
2207 set et_vect_float_saved 1
2211 verbose "check_effective_target_vect_float: returning $et_vect_float_saved" 2
2212 return $et_vect_float_saved
2215 # Return 1 if the target supports hardware vectors of double, 0 otherwise.
2217 # This won't change
for different subtargets so
cache the result.
2219 proc check_effective_target_vect_double
{ } {
2220 global et_vect_double_saved
2222 if [info exists et_vect_double_saved
] {
2223 verbose
"check_effective_target_vect_double: using cached result" 2
2225 set et_vect_double_saved
0
2226 if { [istarget i?
86-*-*]
2227 ||
[istarget x86_64
-*-*]
2228 ||
[istarget spu
-*-*] } {
2229 set et_vect_double_saved
1
2233 verbose
"check_effective_target_vect_double: returning $et_vect_double_saved" 2
2234 return $et_vect_double_saved
2237 #
Return 1 if the target supports hardware vectors of long long
, 0 otherwise.
2239 # This won
't change for different subtargets so cache the result.
2241 proc check_effective_target_vect_long_long { } {
2242 global et_vect_long_long_saved
2244 if [info exists et_vect_long_long_saved] {
2245 verbose "check_effective_target_vect_long_long: using cached result" 2
2247 set et_vect_long_long_saved 0
2248 if { [istarget i?86-*-*]
2249 || [istarget x86_64-*-*] } {
2250 set et_vect_long_long_saved 1
2254 verbose "check_effective_target_vect_long_long: returning $et_vect_long_long_saved" 2
2255 return $et_vect_long_long_saved
2259 # Return 1 if the target plus current options does not support a vector
2260 # max instruction on "int", 0 otherwise.
2262 # This won't change
for different subtargets so
cache the result.
2264 proc check_effective_target_vect_no_int_max
{ } {
2265 global et_vect_no_int_max_saved
2267 if [info exists et_vect_no_int_max_saved
] {
2268 verbose
"check_effective_target_vect_no_int_max: using cached result" 2
2270 set et_vect_no_int_max_saved
0
2271 if { [istarget sparc
*-*-*]
2272 ||
[istarget spu
-*-*]
2273 ||
[istarget alpha
*-*-*] } {
2274 set et_vect_no_int_max_saved
1
2277 verbose
"check_effective_target_vect_no_int_max: returning $et_vect_no_int_max_saved" 2
2278 return $et_vect_no_int_max_saved
2281 #
Return 1 if the target plus current options does not support a vector
2282 # add instruction
on "int", 0 otherwise.
2284 # This won
't change for different subtargets so cache the result.
2286 proc check_effective_target_vect_no_int_add { } {
2287 global et_vect_no_int_add_saved
2289 if [info exists et_vect_no_int_add_saved] {
2290 verbose "check_effective_target_vect_no_int_add: using cached result" 2
2292 set et_vect_no_int_add_saved 0
2293 # Alpha only supports vector add on V8QI and V4HI.
2294 if { [istarget alpha*-*-*] } {
2295 set et_vect_no_int_add_saved 1
2298 verbose "check_effective_target_vect_no_int_add: returning $et_vect_no_int_add_saved" 2
2299 return $et_vect_no_int_add_saved
2302 # Return 1 if the target plus current options does not support vector
2303 # bitwise instructions, 0 otherwise.
2305 # This won't change
for different subtargets so
cache the result.
2307 proc check_effective_target_vect_no_bitwise
{ } {
2308 global et_vect_no_bitwise_saved
2310 if [info exists et_vect_no_bitwise_saved
] {
2311 verbose
"check_effective_target_vect_no_bitwise: using cached result" 2
2313 set et_vect_no_bitwise_saved
0
2315 verbose
"check_effective_target_vect_no_bitwise: returning $et_vect_no_bitwise_saved" 2
2316 return $et_vect_no_bitwise_saved
2319 #
Return 1 if the target plus current options supports vector permutation
,
2322 # This won
't change for different subtargets so cache the result.
2324 proc check_effective_target_vect_perm { } {
2327 if [info exists et_vect_perm_saved] {
2328 verbose "check_effective_target_vect_perm: using cached result" 2
2330 set et_vect_perm_saved 0
2331 if { [istarget powerpc*-*-*]
2332 || [istarget spu-*-*] } {
2333 set et_vect_perm_saved 1
2336 verbose "check_effective_target_vect_perm: returning $et_vect_perm_saved" 2
2337 return $et_vect_perm_saved
2340 # Return 1 if the target plus current options supports a vector
2341 # widening summation of *short* args into *int* result, 0 otherwise.
2343 # This won't change
for different subtargets so
cache the result.
2345 proc check_effective_target_vect_widen_sum_hi_to_si_pattern
{ } {
2346 global et_vect_widen_sum_hi_to_si_pattern
2348 if [info exists et_vect_widen_sum_hi_to_si_pattern_saved
] {
2349 verbose
"check_effective_target_vect_widen_sum_hi_to_si_pattern: using cached result" 2
2351 set et_vect_widen_sum_hi_to_si_pattern_saved
0
2352 if { [istarget powerpc
*-*-*] } {
2353 set et_vect_widen_sum_hi_to_si_pattern_saved
1
2356 verbose
"check_effective_target_vect_widen_sum_hi_to_si_pattern: returning $et_vect_widen_sum_hi_to_si_pattern_saved" 2
2357 return $et_vect_widen_sum_hi_to_si_pattern_saved
2360 #
Return 1 if the target plus current options supports a vector
2361 # widening summation of
*short
* args into
*int* result
, 0 otherwise.
2362 # A target can also support this widening summation
if it can support
2363 # promotion
(unpacking
) from shorts to ints.
2365 # This won
't change for different subtargets so cache the result.
2367 proc check_effective_target_vect_widen_sum_hi_to_si { } {
2368 global et_vect_widen_sum_hi_to_si
2370 if [info exists et_vect_widen_sum_hi_to_si_saved] {
2371 verbose "check_effective_target_vect_widen_sum_hi_to_si: using cached result" 2
2373 set et_vect_widen_sum_hi_to_si_saved [check_effective_target_vect_unpack]
2374 if { [istarget powerpc*-*-*]
2375 || [istarget ia64-*-*] } {
2376 set et_vect_widen_sum_hi_to_si_saved 1
2379 verbose "check_effective_target_vect_widen_sum_hi_to_si: returning $et_vect_widen_sum_hi_to_si_saved" 2
2380 return $et_vect_widen_sum_hi_to_si_saved
2383 # Return 1 if the target plus current options supports a vector
2384 # widening summation of *char* args into *short* result, 0 otherwise.
2385 # A target can also support this widening summation if it can support
2386 # promotion (unpacking) from chars to shorts.
2388 # This won't change
for different subtargets so
cache the result.
2390 proc check_effective_target_vect_widen_sum_qi_to_hi
{ } {
2391 global et_vect_widen_sum_qi_to_hi
2393 if [info exists et_vect_widen_sum_qi_to_hi_saved
] {
2394 verbose
"check_effective_target_vect_widen_sum_qi_to_hi: using cached result" 2
2396 set et_vect_widen_sum_qi_to_hi_saved
0
2397 if { [check_effective_target_vect_unpack
]
2398 ||
[istarget ia64
-*-*] } {
2399 set et_vect_widen_sum_qi_to_hi_saved
1
2402 verbose
"check_effective_target_vect_widen_sum_qi_to_hi: returning $et_vect_widen_sum_qi_to_hi_saved" 2
2403 return $et_vect_widen_sum_qi_to_hi_saved
2406 #
Return 1 if the target plus current options supports a vector
2407 # widening summation of
*char
* args into
*int* result
, 0 otherwise.
2409 # This won
't change for different subtargets so cache the result.
2411 proc check_effective_target_vect_widen_sum_qi_to_si { } {
2412 global et_vect_widen_sum_qi_to_si
2414 if [info exists et_vect_widen_sum_qi_to_si_saved] {
2415 verbose "check_effective_target_vect_widen_sum_qi_to_si: using cached result" 2
2417 set et_vect_widen_sum_qi_to_si_saved 0
2418 if { [istarget powerpc*-*-*] } {
2419 set et_vect_widen_sum_qi_to_si_saved 1
2422 verbose "check_effective_target_vect_widen_sum_qi_to_si: returning $et_vect_widen_sum_qi_to_si_saved" 2
2423 return $et_vect_widen_sum_qi_to_si_saved
2426 # Return 1 if the target plus current options supports a vector
2427 # widening multiplication of *char* args into *short* result, 0 otherwise.
2428 # A target can also support this widening multplication if it can support
2429 # promotion (unpacking) from chars to shorts, and vect_short_mult (non-widening
2430 # multiplication of shorts).
2432 # This won't change
for different subtargets so
cache the result.
2435 proc check_effective_target_vect_widen_mult_qi_to_hi
{ } {
2436 global et_vect_widen_mult_qi_to_hi
2438 if [info exists et_vect_widen_mult_qi_to_hi_saved
] {
2439 verbose
"check_effective_target_vect_widen_mult_qi_to_hi: using cached result" 2
2441 if { [check_effective_target_vect_unpack
]
2442 && [check_effective_target_vect_short_mult
] } {
2443 set et_vect_widen_mult_qi_to_hi_saved
1
2445 set et_vect_widen_mult_qi_to_hi_saved
0
2447 if { [istarget powerpc
*-*-*] } {
2448 set et_vect_widen_mult_qi_to_hi_saved
1
2451 verbose
"check_effective_target_vect_widen_mult_qi_to_hi: returning $et_vect_widen_mult_qi_to_hi_saved" 2
2452 return $et_vect_widen_mult_qi_to_hi_saved
2455 #
Return 1 if the target plus current options supports a vector
2456 # widening multiplication of
*short
* args into
*int* result
, 0 otherwise.
2457 # A target can also support this widening multplication
if it can support
2458 # promotion
(unpacking
) from shorts to ints
, and vect_int_mult
(non
-widening
2459 # multiplication of ints
).
2461 # This won
't change for different subtargets so cache the result.
2464 proc check_effective_target_vect_widen_mult_hi_to_si { } {
2465 global et_vect_widen_mult_hi_to_si
2467 if [info exists et_vect_widen_mult_hi_to_si_saved] {
2468 verbose "check_effective_target_vect_widen_mult_hi_to_si: using cached result" 2
2470 if { [check_effective_target_vect_unpack]
2471 && [check_effective_target_vect_int_mult] } {
2472 set et_vect_widen_mult_hi_to_si_saved 1
2474 set et_vect_widen_mult_hi_to_si_saved 0
2476 if { [istarget powerpc*-*-*]
2477 || [istarget spu-*-*]
2478 || [istarget i?86-*-*]
2479 || [istarget x86_64-*-*] } {
2480 set et_vect_widen_mult_hi_to_si_saved 1
2483 verbose "check_effective_target_vect_widen_mult_hi_to_si: returning $et_vect_widen_mult_hi_to_si_saved" 2
2484 return $et_vect_widen_mult_hi_to_si_saved
2487 # Return 1 if the target plus current options supports a vector
2488 # dot-product of signed chars, 0 otherwise.
2490 # This won't change
for different subtargets so
cache the result.
2492 proc check_effective_target_vect_sdot_qi
{ } {
2493 global et_vect_sdot_qi
2495 if [info exists et_vect_sdot_qi_saved
] {
2496 verbose
"check_effective_target_vect_sdot_qi: using cached result" 2
2498 set et_vect_sdot_qi_saved
0
2500 verbose
"check_effective_target_vect_sdot_qi: returning $et_vect_sdot_qi_saved" 2
2501 return $et_vect_sdot_qi_saved
2504 #
Return 1 if the target plus current options supports a vector
2505 # dot
-product of unsigned chars
, 0 otherwise.
2507 # This won
't change for different subtargets so cache the result.
2509 proc check_effective_target_vect_udot_qi { } {
2510 global et_vect_udot_qi
2512 if [info exists et_vect_udot_qi_saved] {
2513 verbose "check_effective_target_vect_udot_qi: using cached result" 2
2515 set et_vect_udot_qi_saved 0
2516 if { [istarget powerpc*-*-*] } {
2517 set et_vect_udot_qi_saved 1
2520 verbose "check_effective_target_vect_udot_qi: returning $et_vect_udot_qi_saved" 2
2521 return $et_vect_udot_qi_saved
2524 # Return 1 if the target plus current options supports a vector
2525 # dot-product of signed shorts, 0 otherwise.
2527 # This won't change
for different subtargets so
cache the result.
2529 proc check_effective_target_vect_sdot_hi
{ } {
2530 global et_vect_sdot_hi
2532 if [info exists et_vect_sdot_hi_saved
] {
2533 verbose
"check_effective_target_vect_sdot_hi: using cached result" 2
2535 set et_vect_sdot_hi_saved
0
2536 if { ([istarget powerpc
*-*-*] && ![istarget powerpc
-*-linux
*paired
*])
2537 ||
[istarget i?
86-*-*]
2538 ||
[istarget x86_64
-*-*] } {
2539 set et_vect_sdot_hi_saved
1
2542 verbose
"check_effective_target_vect_sdot_hi: returning $et_vect_sdot_hi_saved" 2
2543 return $et_vect_sdot_hi_saved
2546 #
Return 1 if the target plus current options supports a vector
2547 # dot
-product of unsigned shorts
, 0 otherwise.
2549 # This won
't change for different subtargets so cache the result.
2551 proc check_effective_target_vect_udot_hi { } {
2552 global et_vect_udot_hi
2554 if [info exists et_vect_udot_hi_saved] {
2555 verbose "check_effective_target_vect_udot_hi: using cached result" 2
2557 set et_vect_udot_hi_saved 0
2558 if { ([istarget powerpc*-*-*] && ![istarget powerpc-*-linux*paired*]) } {
2559 set et_vect_udot_hi_saved 1
2562 verbose "check_effective_target_vect_udot_hi: returning $et_vect_udot_hi_saved" 2
2563 return $et_vect_udot_hi_saved
2567 # Return 1 if the target plus current options supports a vector
2568 # demotion (packing) of shorts (to chars) and ints (to shorts)
2569 # using modulo arithmetic, 0 otherwise.
2571 # This won't change
for different subtargets so
cache the result.
2573 proc check_effective_target_vect_pack_trunc
{ } {
2574 global et_vect_pack_trunc
2576 if [info exists et_vect_pack_trunc_saved
] {
2577 verbose
"check_effective_target_vect_pack_trunc: using cached result" 2
2579 set et_vect_pack_trunc_saved
0
2580 if { ([istarget powerpc
*-*-*] && ![istarget powerpc
-*-linux
*paired
*])
2581 ||
[istarget i?
86-*-*]
2582 ||
[istarget x86_64
-*-*]
2583 ||
[istarget spu
-*-*] } {
2584 set et_vect_pack_trunc_saved
1
2587 verbose
"check_effective_target_vect_pack_trunc: returning $et_vect_pack_trunc_saved" 2
2588 return $et_vect_pack_trunc_saved
2591 #
Return 1 if the target plus current options supports a vector
2592 # promotion
(unpacking
) of chars
(to shorts
) and shorts
(to ints
), 0 otherwise.
2594 # This won
't change for different subtargets so cache the result.
2596 proc check_effective_target_vect_unpack { } {
2597 global et_vect_unpack
2599 if [info exists et_vect_unpack_saved] {
2600 verbose "check_effective_target_vect_unpack: using cached result" 2
2602 set et_vect_unpack_saved 0
2603 if { ([istarget powerpc*-*-*] && ![istarget powerpc-*paired*])
2604 || [istarget i?86-*-*]
2605 || [istarget x86_64-*-*]
2606 || [istarget spu-*-*] } {
2607 set et_vect_unpack_saved 1
2610 verbose "check_effective_target_vect_unpack: returning $et_vect_unpack_saved" 2
2611 return $et_vect_unpack_saved
2614 # Return 1 if the target plus current options does not guarantee
2615 # that its STACK_BOUNDARY is >= the reguired vector alignment.
2617 # This won't change
for different subtargets so
cache the result.
2619 proc check_effective_target_unaligned_stack
{ } {
2620 global et_unaligned_stack_saved
2622 if [info exists et_unaligned_stack_saved
] {
2623 verbose
"check_effective_target_unaligned_stack: using cached result" 2
2625 set et_unaligned_stack_saved
0
2627 verbose
"check_effective_target_unaligned_stack: returning $et_unaligned_stack_saved" 2
2628 return $et_unaligned_stack_saved
2631 #
Return 1 if the target plus current options does not support a vector
2632 # alignment mechanism
, 0 otherwise.
2634 # This won
't change for different subtargets so cache the result.
2636 proc check_effective_target_vect_no_align { } {
2637 global et_vect_no_align_saved
2639 if [info exists et_vect_no_align_saved] {
2640 verbose "check_effective_target_vect_no_align: using cached result" 2
2642 set et_vect_no_align_saved 0
2643 if { [istarget mipsisa64*-*-*]
2644 || [istarget sparc*-*-*]
2645 || [istarget ia64-*-*]
2646 || [check_effective_target_arm32] } {
2647 set et_vect_no_align_saved 1
2650 verbose "check_effective_target_vect_no_align: returning $et_vect_no_align_saved" 2
2651 return $et_vect_no_align_saved
2654 # Return 1 if the target supports a vector misalign access, 0 otherwise.
2656 # This won't change
for different subtargets so
cache the result.
2658 proc check_effective_target_vect_hw_misalign
{ } {
2659 global et_vect_hw_misalign_saved
2661 if [info exists et_vect_hw_misalign_saved
] {
2662 verbose
"check_effective_target_vect_hw_misalign: using cached result" 2
2664 set et_vect_hw_misalign_saved
0
2665 if { ([istarget x86_64
-*-*]
2666 ||
[istarget i?
86-*-*]) } {
2667 set et_vect_hw_misalign_saved
1
2670 verbose
"check_effective_target_vect_hw_misalign: returning $et_vect_hw_misalign_saved" 2
2671 return $et_vect_hw_misalign_saved
2675 #
Return 1 if arrays are aligned to the vector alignment
2676 # boundary
, 0 otherwise.
2678 # This won
't change for different subtargets so cache the result.
2680 proc check_effective_target_vect_aligned_arrays { } {
2681 global et_vect_aligned_arrays
2683 if [info exists et_vect_aligned_arrays_saved] {
2684 verbose "check_effective_target_vect_aligned_arrays: using cached result" 2
2686 set et_vect_aligned_arrays_saved 0
2687 if { (([istarget x86_64-*-*]
2688 || [istarget i?86-*-*]) && [is-effective-target lp64])
2689 || [istarget spu-*-*] } {
2690 set et_vect_aligned_arrays_saved 1
2693 verbose "check_effective_target_vect_aligned_arrays: returning $et_vect_aligned_arrays_saved" 2
2694 return $et_vect_aligned_arrays_saved
2697 # Return 1 if types of size 32 bit or less are naturally aligned
2698 # (aligned to their type-size), 0 otherwise.
2700 # This won't change
for different subtargets so
cache the result.
2702 proc check_effective_target_natural_alignment_32
{ } {
2703 global et_natural_alignment_32
2705 if [info exists et_natural_alignment_32_saved
] {
2706 verbose
"check_effective_target_natural_alignment_32: using cached result" 2
2708 # FIXME
: 32bit powerpc
: guaranteed only
if MASK_ALIGN_NATURAL
/POWER.
2709 set et_natural_alignment_32_saved
1
2710 if { ([istarget
*-*-darwin
*] && [is
-effective
-target lp64
]) } {
2711 set et_natural_alignment_32_saved
0
2714 verbose
"check_effective_target_natural_alignment_32: returning $et_natural_alignment_32_saved" 2
2715 return $et_natural_alignment_32_saved
2718 #
Return 1 if types of size
64 bit or less are naturally aligned
(aligned to their
2719 # type
-size
), 0 otherwise.
2721 # This won
't change for different subtargets so cache the result.
2723 proc check_effective_target_natural_alignment_64 { } {
2724 global et_natural_alignment_64
2726 if [info exists et_natural_alignment_64_saved] {
2727 verbose "check_effective_target_natural_alignment_64: using cached result" 2
2729 set et_natural_alignment_64_saved 0
2730 if { ([is-effective-target lp64] && ![istarget *-*-darwin*])
2731 || [istarget spu-*-*] } {
2732 set et_natural_alignment_64_saved 1
2735 verbose "check_effective_target_natural_alignment_64: returning $et_natural_alignment_64_saved" 2
2736 return $et_natural_alignment_64_saved
2739 # Return 1 if vector alignment (for types of size 32 bit or less) is reachable, 0 otherwise.
2741 # This won't change
for different subtargets so
cache the result.
2743 proc check_effective_target_vector_alignment_reachable
{ } {
2744 global et_vector_alignment_reachable
2746 if [info exists et_vector_alignment_reachable_saved
] {
2747 verbose
"check_effective_target_vector_alignment_reachable: using cached result" 2
2749 if { [check_effective_target_vect_aligned_arrays
]
2750 ||
[check_effective_target_natural_alignment_32
] } {
2751 set et_vector_alignment_reachable_saved
1
2753 set et_vector_alignment_reachable_saved
0
2756 verbose
"check_effective_target_vector_alignment_reachable: returning $et_vector_alignment_reachable_saved" 2
2757 return $et_vector_alignment_reachable_saved
2760 #
Return 1 if vector alignment
for 64 bit is reachable
, 0 otherwise.
2762 # This won
't change for different subtargets so cache the result.
2764 proc check_effective_target_vector_alignment_reachable_for_64bit { } {
2765 global et_vector_alignment_reachable_for_64bit
2767 if [info exists et_vector_alignment_reachable_for_64bit_saved] {
2768 verbose "check_effective_target_vector_alignment_reachable_for_64bit: using cached result" 2
2770 if { [check_effective_target_vect_aligned_arrays]
2771 || [check_effective_target_natural_alignment_64] } {
2772 set et_vector_alignment_reachable_for_64bit_saved 1
2774 set et_vector_alignment_reachable_for_64bit_saved 0
2777 verbose "check_effective_target_vector_alignment_reachable_for_64bit: returning $et_vector_alignment_reachable_for_64bit_saved" 2
2778 return $et_vector_alignment_reachable_for_64bit_saved
2781 # Return 1 if the target supports vector conditional operations, 0 otherwise.
2783 proc check_effective_target_vect_condition { } {
2784 global et_vect_cond_saved
2786 if [info exists et_vect_cond_saved] {
2787 verbose "check_effective_target_vect_cond: using cached result" 2
2789 set et_vect_cond_saved 0
2790 if { [istarget powerpc*-*-*]
2791 || [istarget ia64-*-*]
2792 || [istarget i?86-*-*]
2793 || [istarget spu-*-*]
2794 || [istarget x86_64-*-*] } {
2795 set et_vect_cond_saved 1
2799 verbose "check_effective_target_vect_cond: returning $et_vect_cond_saved" 2
2800 return $et_vect_cond_saved
2803 # Return 1 if the target supports vector char multiplication, 0 otherwise.
2805 proc check_effective_target_vect_char_mult { } {
2806 global et_vect_char_mult_saved
2808 if [info exists et_vect_char_mult_saved] {
2809 verbose "check_effective_target_vect_char_mult: using cached result" 2
2811 set et_vect_char_mult_saved 0
2812 if { [istarget ia64-*-*]
2813 || [istarget i?86-*-*]
2814 || [istarget x86_64-*-*] } {
2815 set et_vect_char_mult_saved 1
2819 verbose "check_effective_target_vect_char_mult: returning $et_vect_char_mult_saved" 2
2820 return $et_vect_char_mult_saved
2823 # Return 1 if the target supports vector short multiplication, 0 otherwise.
2825 proc check_effective_target_vect_short_mult { } {
2826 global et_vect_short_mult_saved
2828 if [info exists et_vect_short_mult_saved] {
2829 verbose "check_effective_target_vect_short_mult: using cached result" 2
2831 set et_vect_short_mult_saved 0
2832 if { [istarget ia64-*-*]
2833 || [istarget spu-*-*]
2834 || [istarget i?86-*-*]
2835 || [istarget x86_64-*-*]
2836 || [istarget powerpc*-*-*]
2837 || [check_effective_target_arm32] } {
2838 set et_vect_short_mult_saved 1
2842 verbose "check_effective_target_vect_short_mult: returning $et_vect_short_mult_saved" 2
2843 return $et_vect_short_mult_saved
2846 # Return 1 if the target supports vector int multiplication, 0 otherwise.
2848 proc check_effective_target_vect_int_mult { } {
2849 global et_vect_int_mult_saved
2851 if [info exists et_vect_int_mult_saved] {
2852 verbose "check_effective_target_vect_int_mult: using cached result" 2
2854 set et_vect_int_mult_saved 0
2855 if { ([istarget powerpc*-*-*] && ![istarget powerpc-*-linux*paired*])
2856 || [istarget spu-*-*]
2857 || [istarget i?86-*-*]
2858 || [istarget x86_64-*-*]
2859 || [check_effective_target_arm32] } {
2860 set et_vect_int_mult_saved 1
2864 verbose "check_effective_target_vect_int_mult: returning $et_vect_int_mult_saved" 2
2865 return $et_vect_int_mult_saved
2868 # Return 1 if the target supports vector even/odd elements extraction, 0 otherwise.
2870 proc check_effective_target_vect_extract_even_odd { } {
2871 global et_vect_extract_even_odd_saved
2873 if [info exists et_vect_extract_even_odd_saved] {
2874 verbose "check_effective_target_vect_extract_even_odd: using cached result" 2
2876 set et_vect_extract_even_odd_saved 0
2877 if { [istarget powerpc*-*-*]
2878 || [istarget i?86-*-*]
2879 || [istarget x86_64-*-*]
2880 || [istarget spu-*-*] } {
2881 set et_vect_extract_even_odd_saved 1
2885 verbose "check_effective_target_vect_extract_even_odd: returning $et_vect_extract_even_odd_saved" 2
2886 return $et_vect_extract_even_odd_saved
2889 # Return 1 if the target supports vector even/odd elements extraction of
2890 # vectors with SImode elements or larger, 0 otherwise.
2892 proc check_effective_target_vect_extract_even_odd_wide { } {
2893 global et_vect_extract_even_odd_wide_saved
2895 if [info exists et_vect_extract_even_odd_wide_saved] {
2896 verbose "check_effective_target_vect_extract_even_odd_wide: using cached result" 2
2898 set et_vect_extract_even_odd_wide_saved 0
2899 if { [istarget powerpc*-*-*]
2900 || [istarget i?86-*-*]
2901 || [istarget x86_64-*-*]
2902 || [istarget spu-*-*] } {
2903 set et_vect_extract_even_odd_wide_saved 1
2907 verbose "check_effective_target_vect_extract_even_wide_odd: returning $et_vect_extract_even_odd_wide_saved" 2
2908 return $et_vect_extract_even_odd_wide_saved
2911 # Return 1 if the target supports vector interleaving, 0 otherwise.
2913 proc check_effective_target_vect_interleave { } {
2914 global et_vect_interleave_saved
2916 if [info exists et_vect_interleave_saved] {
2917 verbose "check_effective_target_vect_interleave: using cached result" 2
2919 set et_vect_interleave_saved 0
2920 if { [istarget powerpc*-*-*]
2921 || [istarget i?86-*-*]
2922 || [istarget x86_64-*-*]
2923 || [istarget spu-*-*] } {
2924 set et_vect_interleave_saved 1
2928 verbose "check_effective_target_vect_interleave: returning $et_vect_interleave_saved" 2
2929 return $et_vect_interleave_saved
2932 # Return 1 if the target supports vector interleaving and extract even/odd, 0 otherwise.
2933 proc check_effective_target_vect_strided { } {
2934 global et_vect_strided_saved
2936 if [info exists et_vect_strided_saved] {
2937 verbose "check_effective_target_vect_strided: using cached result" 2
2939 set et_vect_strided_saved 0
2940 if { [check_effective_target_vect_interleave]
2941 && [check_effective_target_vect_extract_even_odd] } {
2942 set et_vect_strided_saved 1
2946 verbose "check_effective_target_vect_strided: returning $et_vect_strided_saved" 2
2947 return $et_vect_strided_saved
2950 # Return 1 if the target supports vector interleaving and extract even/odd
2951 # for wide element types, 0 otherwise.
2952 proc check_effective_target_vect_strided_wide { } {
2953 global et_vect_strided_wide_saved
2955 if [info exists et_vect_strided_wide_saved] {
2956 verbose "check_effective_target_vect_strided_wide: using cached result" 2
2958 set et_vect_strided_wide_saved 0
2959 if { [check_effective_target_vect_interleave]
2960 && [check_effective_target_vect_extract_even_odd_wide] } {
2961 set et_vect_strided_wide_saved 1
2965 verbose "check_effective_target_vect_strided_wide: returning $et_vect_strided_wide_saved" 2
2966 return $et_vect_strided_wide_saved
2969 # Return 1 if the target supports section-anchors
2971 proc check_effective_target_section_anchors { } {
2972 global et_section_anchors_saved
2974 if [info exists et_section_anchors_saved] {
2975 verbose "check_effective_target_section_anchors: using cached result" 2
2977 set et_section_anchors_saved 0
2978 if { [istarget powerpc*-*-*]
2979 || [istarget arm*-*-*] } {
2980 set et_section_anchors_saved 1
2984 verbose "check_effective_target_section_anchors: returning $et_section_anchors_saved" 2
2985 return $et_section_anchors_saved
2988 # Return 1 if the target supports atomic operations on "int" and "long".
2990 proc check_effective_target_sync_int_long { } {
2991 global et_sync_int_long_saved
2993 if [info exists et_sync_int_long_saved] {
2994 verbose "check_effective_target_sync_int_long: using cached result" 2
2996 set et_sync_int_long_saved 0
2997 # This is intentionally powerpc but not rs6000, rs6000 doesn't have the
2998 #
load-reserved/store
-conditional instructions.
2999 if { [istarget ia64
-*-*]
3000 ||
[istarget i?
86-*-*]
3001 ||
[istarget x86_64
-*-*]
3002 ||
[istarget alpha
*-*-*]
3003 ||
[istarget bfin
*-*linux
*]
3004 ||
[istarget s390
*-*-*]
3005 ||
[istarget powerpc
*-*-*]
3006 ||
[istarget sparc64
-*-*]
3007 ||
[istarget sparcv9
-*-*]
3008 ||
[istarget mips
*-*-*] } {
3009 set et_sync_int_long_saved
1
3013 verbose
"check_effective_target_sync_int_long: returning $et_sync_int_long_saved" 2
3014 return $et_sync_int_long_saved
3017 #
Return 1 if the target supports atomic operations
on "char" and "short".
3019 proc check_effective_target_sync_char_short
{ } {
3020 global et_sync_char_short_saved
3022 if [info exists et_sync_char_short_saved
] {
3023 verbose
"check_effective_target_sync_char_short: using cached result" 2
3025 set et_sync_char_short_saved
0
3026 # This is intentionally powerpc but not rs6000
, rs6000 doesn
't have the
3027 # load-reserved/store-conditional instructions.
3028 if { [istarget ia64-*-*]
3029 || [istarget i?86-*-*]
3030 || [istarget x86_64-*-*]
3031 || [istarget alpha*-*-*]
3032 || [istarget s390*-*-*]
3033 || [istarget powerpc*-*-*]
3034 || [istarget sparc64-*-*]
3035 || [istarget sparcv9-*-*]
3036 || [istarget mips*-*-*] } {
3037 set et_sync_char_short_saved 1
3041 verbose "check_effective_target_sync_char_short: returning $et_sync_char_short_saved" 2
3042 return $et_sync_char_short_saved
3045 # Return 1 if the target uses a ColdFire FPU.
3047 proc check_effective_target_coldfire_fpu { } {
3048 return [check_no_compiler_messages coldfire_fpu assembly {
3055 # Return true if this is a uClibc target.
3057 proc check_effective_target_uclibc {} {
3058 return [check_no_compiler_messages uclibc object {
3059 #include <features.h>
3060 #if !defined (__UCLIBC__)
3066 # Return true if this is a uclibc target and if the uclibc feature
3067 # described by __$feature__ is not present.
3069 proc check_missing_uclibc_feature {feature} {
3070 return [check_no_compiler_messages $feature object "
3071 #include <features.h>
3072 #if !defined (__UCLIBC) || defined (__${feature}__)
3078 # Return true if this is a Newlib target.
3080 proc check_effective_target_newlib {} {
3081 return [check_no_compiler_messages newlib object {
3087 # (a) an error of a few ULP is expected in string to floating-point
3088 # conversion functions; and
3089 # (b) overflow is not always detected correctly by those functions.
3091 proc check_effective_target_lax_strtofp {} {
3092 # By default, assume that all uClibc targets suffer from this.
3093 return [check_effective_target_uclibc]
3096 # Return 1 if this is a target for which wcsftime is a dummy
3097 # function that always returns 0.
3099 proc check_effective_target_dummy_wcsftime {} {
3100 # By default, assume that all uClibc targets suffer from this.
3101 return [check_effective_target_uclibc]
3104 # Return 1 if constructors with initialization priority arguments are
3105 # supposed on this target.
3107 proc check_effective_target_init_priority {} {
3108 return [check_no_compiler_messages init_priority assembly "
3109 void f() __attribute__((constructor (1000)));
3114 # Return 1 if the target matches the effective target 'arg', 0 otherwise.
3115 # This can be used with any check_* proc that takes no argument and
3116 # returns only 1 or 0. It could be used with check_* procs that take
3117 # arguments with keywords that pass particular arguments.
3119 proc is-effective-target { arg } {
3121 if { [info procs check_effective_target_${arg}] != [list] } {
3122 set selected [check_effective_target_${arg}]
3125 "vmx_hw" { set selected [check_vmx_hw_available] }
3126 "vsx_hw" { set selected [check_vsx_hw_available] }
3127 "ppc_recip_hw" { set selected [check_ppc_recip_hw_available] }
3128 "named_sections" { set selected [check_named_sections_available] }
3129 "gc_sections" { set selected [check_gc_sections_available] }
3130 "cxa_atexit" { set selected [check_cxa_atexit_available] }
3131 default { error "unknown effective target keyword `$arg'" }
3134 verbose
"is-effective-target: $arg $selected" 2
3138 #
Return 1 if the
argument is an effective
-target keyword
, 0 otherwise.
3140 proc is
-effective
-target
-keyword
{ arg } {
3141 if { [info procs check_effective_target_$
{arg}] != [list
] } {
3144 # These have different names
for their check_
* procs.
3146 "vmx_hw" { return 1 }
3147 "vsx_hw" { return 1 }
3148 "ppc_recip_hw" { return 1 }
3149 "named_sections" { return 1 }
3150 "gc_sections" { return 1 }
3151 "cxa_atexit" { return 1 }
3152 default
{ return 0 }
3157 #
Return 1 if target default to short enums
3159 proc check_effective_target_short_enums
{ } {
3160 return [check_no_compiler_messages short_enums assembly
{
3162 int s
[sizeof
(enum foo
) == 1 ?
1 : -1];
3166 #
Return 1 if target supports merging string constants at link time.
3168 proc check_effective_target_string_merging
{ } {
3169 return [check_no_messages_and_pattern string_merging \
3170 "rodata\\.str" assembly {
3171 const char
*var
= "String";
3175 #
Return 1 if target has the basic signed and unsigned types in
3176 #
<stdint.h
>, 0 otherwise. This will be obsolete when GCC ensures a
3177 # working
<stdint.h
> for all targets.
3179 proc check_effective_target_stdint_types
{ } {
3180 return [check_no_compiler_messages stdint_types assembly
{
3182 int8_t a
; int16_t b
; int32_t c
; int64_t d
;
3183 uint8_t e
; uint16_t f
; uint32_t g
; uint64_t h
;
3187 #
Return 1 if target has the basic signed and unsigned types in
3188 #
<inttypes.h
>, 0 otherwise. This is
for tests that GCC
's notions of
3189 # these types agree with those in the header, as some systems have
3190 # only <inttypes.h>.
3192 proc check_effective_target_inttypes_types { } {
3193 return [check_no_compiler_messages inttypes_types assembly {
3194 #include <inttypes.h>
3195 int8_t a; int16_t b; int32_t c; int64_t d;
3196 uint8_t e; uint16_t f; uint32_t g; uint64_t h;
3200 # Return 1 if programs are intended to be run on a simulator
3201 # (i.e. slowly) rather than hardware (i.e. fast).
3203 proc check_effective_target_simulator { } {
3205 # All "src/sim" simulators set this one.
3206 if [board_info target exists is_simulator] {
3207 return [board_info target is_simulator]
3210 # The "sid" simulators don't
set that one
, but at least they
set
3212 if [board_info target
exists slow_simulator
] {
3213 return [board_info target slow_simulator
]
3219 #
Return 1 if the target is a VxWorks kernel.
3221 proc check_effective_target_vxworks_kernel
{ } {
3222 return [check_no_compiler_messages vxworks_kernel assembly
{
3223 #
if !defined __vxworks || defined __RTP__
3229 #
Return 1 if the target is a VxWorks RTP.
3231 proc check_effective_target_vxworks_rtp
{ } {
3232 return [check_no_compiler_messages vxworks_rtp assembly
{
3233 #
if !defined __vxworks ||
!defined __RTP__
3239 #
Return 1 if the target is expected to provide wide character support.
3241 proc check_effective_target_wchar
{ } {
3242 if {[check_missing_uclibc_feature UCLIBC_HAS_WCHAR
]} {
3245 return [check_no_compiler_messages wchar assembly
{
3250 #
Return 1 if the target has
<pthread.h
>.
3252 proc check_effective_target_pthread_h
{ } {
3253 return [check_no_compiler_messages pthread_h assembly
{
3254 #
include <pthread.h
>
3258 #
Return 1 if the target can truncate a file from a file
-descriptor
,
3259 # as used by libgfortran
/io
/unix.c
:fd_truncate
; i.e. ftruncate or
3260 # chsize. We test
for a trivially functional truncation
; no stubs.
3261 # As libgfortran uses _FILE_OFFSET_BITS
64, we
do too
; it
'll cause a
3262 # different function to be used.
3264 proc check_effective_target_fd_truncate { } {
3266 #define _FILE_OFFSET_BITS 64
3272 FILE *f = fopen ("tst.tmp", "wb");
3274 const char t[] = "test writing more than ten characters";
3277 write (fd, t, sizeof (t) - 1);
3279 if (ftruncate (fd, 10) != 0)
3282 f = fopen ("tst.tmp", "rb");
3283 if (fread (s, 1, sizeof (s), f) != 10 || strncmp (s, t, 10) != 0)
3289 if { [check_runtime ftruncate $prog] } {
3293 regsub "ftruncate" $prog "chsize" prog
3294 return [check_runtime chsize $prog]
3297 # Add to FLAGS all the target-specific flags needed to access the c99 runtime.
3299 proc add_options_for_c99_runtime { flags } {
3300 if { [istarget *-*-solaris2*] } {
3301 return "$flags -std=c99"
3303 if { [istarget powerpc-*-darwin*] } {
3304 return "$flags -mmacosx-version-min=10.3"
3309 # Add to FLAGS all the target-specific flags needed to enable
3310 # full IEEE compliance mode.
3312 proc add_options_for_ieee { flags } {
3313 if { [istarget "alpha*-*-*"]
3314 || [istarget "sh*-*-*"] } {
3315 return "$flags -mieee"
3320 # Add to FLAGS the flags needed to enable functions to bind locally
3321 # when using pic/PIC passes in the testsuite.
3323 proc add_options_for_bind_pic_locally { flags } {
3324 if {[check_no_compiler_messages using_pic2 assembly {
3329 return "$flags -fPIE"
3331 if {[check_no_compiler_messages using_pic1 assembly {
3336 return "$flags -fpie"
3342 # Return 1 if the target provides a full C99 runtime.
3344 proc check_effective_target_c99_runtime { } {
3345 return [check_cached_effective_target c99_runtime {
3348 set file [open "$srcdir/gcc.dg/builtins-config.h"]
3349 set contents [read $file]
3352 #ifndef HAVE_C99_RUNTIME
3356 check_no_compiler_messages_nocache c99_runtime assembly \
3357 $contents [add_options_for_c99_runtime ""]
3361 # Return 1 if target wchar_t is at least 4 bytes.
3363 proc check_effective_target_4byte_wchar_t { } {
3364 return [check_no_compiler_messages 4byte_wchar_t object {
3365 int dummy[sizeof (__WCHAR_TYPE__) >= 4 ? 1 : -1];
3369 # Return 1 if the target supports automatic stack alignment.
3371 proc check_effective_target_automatic_stack_alignment { } {
3372 if { [istarget i?86*-*-*]
3373 || [istarget x86_64-*-*] } then {
3380 # Return 1 if avx instructions can be compiled.
3382 proc check_effective_target_avx { } {
3383 return [check_no_compiler_messages avx object {
3384 void _mm256_zeroall (void)
3386 __builtin_ia32_vzeroall ();
3391 # Return 1 if sse instructions can be compiled.
3392 proc check_effective_target_sse { } {
3393 return [check_no_compiler_messages sse object {
3396 __builtin_ia32_stmxcsr ();
3402 # Return 1 if sse2 instructions can be compiled.
3403 proc check_effective_target_sse2 { } {
3404 return [check_no_compiler_messages sse2 object {
3405 typedef long long __m128i __attribute__ ((__vector_size__ (16)));
3407 __m128i _mm_srli_si128 (__m128i __A, int __N)
3409 return (__m128i)__builtin_ia32_psrldqi128 (__A, 8);
3414 # Return 1 if F16C instructions can be compiled.
3416 proc check_effective_target_f16c { } {
3417 return [check_no_compiler_messages f16c object {
3418 #include "immintrin.h"
3420 foo (unsigned short val)
3422 return _cvtsh_ss (val);
3427 # Return 1 if C wchar_t type is compatible with char16_t.
3429 proc check_effective_target_wchar_t_char16_t_compatible { } {
3430 return [check_no_compiler_messages wchar_t_char16_t object {
3432 __CHAR16_TYPE__ *p16 = &wc;
3433 char t[(((__CHAR16_TYPE__) -1) < 0 == ((__WCHAR_TYPE__) -1) < 0) ? 1 : -1];
3437 # Return 1 if C wchar_t type is compatible with char32_t.
3439 proc check_effective_target_wchar_t_char32_t_compatible { } {
3440 return [check_no_compiler_messages wchar_t_char32_t object {
3442 __CHAR32_TYPE__ *p32 = &wc;
3443 char t[(((__CHAR32_TYPE__) -1) < 0 == ((__WCHAR_TYPE__) -1) < 0) ? 1 : -1];
3447 # Return 1 if pow10 function exists.
3449 proc check_effective_target_pow10 { } {
3450 return [check_runtime pow10 {
3460 # Return 1 if current options generate DFP instructions, 0 otherwise.
3462 proc check_effective_target_hard_dfp {} {
3463 return [check_no_messages_and_pattern hard_dfp "!adddd3" assembly {
3464 typedef float d64 __attribute__((mode(DD)));
3466 void foo (void) { z = x + y; }
3470 # Return 1 if string.h and wchar.h headers provide C++ requires overloads
3471 # for strchr etc. functions.
3473 proc check_effective_target_correct_iso_cpp_string_wchar_protos { } {
3474 return [check_no_compiler_messages correct_iso_cpp_string_wchar_protos assembly {
3477 #if !defined(__cplusplus) \
3478 || !defined(__CORRECT_ISO_CPP_STRING_H_PROTO) \
3479 || !defined(__CORRECT_ISO_CPP_WCHAR_H_PROTO)
3480 ISO C++ correct string.h and wchar.h protos not supported.
3487 # Return 1 if GNU as is used.
3489 proc check_effective_target_gas { } {
3490 global use_gas_saved
3493 if {![info exists use_gas_saved]} {
3494 # Check if the as used by gcc is GNU as.
3495 set gcc_as [lindex [${tool}_target_compile "-print-prog-name=as" "" "none" ""] 0]
3496 # Provide /dev/null as input, otherwise gas times out reading from
3498 set status [remote_exec host "$gcc_as" "-v /dev/null"]
3499 set as_output [lindex $status 1]
3500 if { [ string first "GNU" $as_output ] >= 0 } {
3506 return $use_gas_saved
3509 # Return 1 if the compiler has been configure with link-time optimization
3512 proc check_effective_target_lto { } {
3514 return [info exists ENABLE_LTO]
3517 # Return 1 if the language for the compiler under test is C.
3519 proc check_effective_target_c { } {
3521 if [string match $tool "gcc"] {
3527 # Return 1 if the language for the compiler under test is C++.
3529 proc check_effective_target_c++ { } {
3531 if [string match $tool "g++"] {