1 # Copyright (C) 1999, 2001, 2003, 2004, 2005, 2006, 2007, 2008, 2009
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. C++ code should contain
33 # "// C++" and Fortran code should contain "! Fortran".
34 proc check_compile {basename type contents args} {
37 if { [llength $args] > 0 } {
38 set options [list "additional_flags=[lindex $args 0]"]
42 switch -glob -- $contents {
43 "*! Fortran*" { set src ${basename}[pid].f90 }
44 "*// C++*" { set src ${basename}[pid].cc }
45 default { set src ${basename}[pid].c }
47 set compile_type $type
49 assembly { set output ${basename}[pid].s }
50 object { set output ${basename}[pid].o }
51 executable { set output ${basename}[pid].exe }
53 set output ${basename}[pid].s
54 lappend options "additional_flags=-fdump-$type"
55 set compile_type assembly
61 set lines [${tool}_target_compile $src $output $compile_type "$options"]
64 set scan_output $output
65 # Don't try folding this into the switch above; calling "glob" before the
66 # file is created won't work.
67 if [regexp "rtl-(.*)" $type dummy rtl_type] {
68 set scan_output "[glob $src.\[0-9\]\[0-9\]\[0-9\]r.$rtl_type]"
72 return [list $lines $scan_output]
75 proc current_target_name { } {
77 if [info exists target_info(target,name)] {
78 set answer $target_info(target,name)
85 # Implement an effective-target check for property PROP by invoking
86 # the Tcl command ARGS and seeing if it returns true.
88 proc check_cached_effective_target { prop args } {
91 set target [current_target_name]
92 if {![info exists et_cache($prop,target)]
93 || $et_cache($prop,target) != $target} {
94 verbose "check_cached_effective_target $prop: checking $target" 2
95 set et_cache($prop,target) $target
96 set et_cache($prop,value) [uplevel eval $args]
98 set value $et_cache($prop,value)
99 verbose "check_cached_effective_target $prop: returning $value for $target" 2
103 # Like check_compile, but delete the output file and return true if the
104 # compiler printed no messages.
105 proc check_no_compiler_messages_nocache {args} {
106 set result [eval check_compile $args]
107 set lines [lindex $result 0]
108 set output [lindex $result 1]
109 remote_file build delete $output
110 return [string match "" $lines]
113 # Like check_no_compiler_messages_nocache, but cache the result.
114 # PROP is the property we're checking, and doubles as a prefix for
115 # temporary filenames.
116 proc check_no_compiler_messages {prop args} {
117 return [check_cached_effective_target $prop {
118 eval [list check_no_compiler_messages_nocache $prop] $args
122 # Like check_compile, but return true if the compiler printed no
123 # messages and if the contents of the output file satisfy PATTERN.
124 # If PATTERN has the form "!REGEXP", the contents satisfy it if they
125 # don't match regular expression REGEXP, otherwise they satisfy it
126 # if they do match regular expression PATTERN. (PATTERN can start
127 # with something like "[!]" if the regular expression needs to match
128 # "!" as the first character.)
130 # Delete the output file before returning. The other arguments are
131 # as for check_compile.
132 proc check_no_messages_and_pattern_nocache {basename pattern args} {
135 set result [eval [list check_compile $basename] $args]
136 set lines [lindex $result 0]
137 set output [lindex $result 1]
140 if { [string match "" $lines] } {
141 set chan [open "$output"]
142 set invert [regexp {^!(.*)} $pattern dummy pattern]
143 set ok [expr { [regexp $pattern [read $chan]] != $invert }]
147 remote_file build delete $output
151 # Like check_no_messages_and_pattern_nocache, but cache the result.
152 # PROP is the property we're checking, and doubles as a prefix for
153 # temporary filenames.
154 proc check_no_messages_and_pattern {prop pattern args} {
155 return [check_cached_effective_target $prop {
156 eval [list check_no_messages_and_pattern_nocache $prop $pattern] $args
160 # Try to compile and run an executable from code CONTENTS. Return true
161 # if the compiler reports no messages and if execution "passes" in the
162 # usual DejaGNU sense. The arguments are as for check_compile, with
163 # TYPE implicitly being "executable".
164 proc check_runtime_nocache {basename contents args} {
167 set result [eval [list check_compile $basename executable $contents] $args]
168 set lines [lindex $result 0]
169 set output [lindex $result 1]
172 if { [string match "" $lines] } {
173 # No error messages, everything is OK.
174 set result [remote_load target "./$output" "" ""]
175 set status [lindex $result 0]
176 verbose "check_runtime_nocache $basename: status is <$status>" 2
177 if { $status == "pass" } {
181 remote_file build delete $output
185 # Like check_runtime_nocache, but cache the result. PROP is the
186 # property we're checking, and doubles as a prefix for temporary
188 proc check_runtime {prop args} {
191 return [check_cached_effective_target $prop {
192 eval [list check_runtime_nocache $prop] $args
196 ###############################
197 # proc check_weak_available { }
198 ###############################
200 # weak symbols are only supported in some configs/object formats
201 # this proc returns 1 if they're supported, 0 if they're not, or -1 if unsure
203 proc check_weak_available { } {
204 global target_triplet
207 # All mips targets should support it
209 if { [ string first "mips" $target_cpu ] >= 0 } {
213 # All solaris2 targets should support it
215 if { [regexp ".*-solaris2.*" $target_triplet] } {
219 # DEC OSF/1/Digital UNIX/Tru64 UNIX supports it
221 if { [regexp "alpha.*osf.*" $target_triplet] } {
225 # Windows targets Cygwin and MingW32 support it
227 if { [regexp ".*mingw32|.*cygwin" $target_triplet] } {
231 # HP-UX 10.X doesn't support it
233 if { [istarget "hppa*-*-hpux10*"] } {
237 # ELF and ECOFF support it. a.out does with gas/gld but may also with
238 # other linkers, so we should try it
240 set objformat [gcc_target_object_format]
248 unknown { return -1 }
253 ###############################
254 # proc check_weak_override_available { }
255 ###############################
257 # Like check_weak_available, but return 0 if weak symbol definitions
258 # cannot be overridden.
260 proc check_weak_override_available { } {
261 if { [istarget "*-*-mingw*"] } {
264 return [check_weak_available]
267 ###############################
268 # proc check_visibility_available { what_kind }
269 ###############################
271 # The visibility attribute is only support in some object formats
272 # This proc returns 1 if it is supported, 0 if not.
273 # The argument is the kind of visibility, default/protected/hidden/internal.
275 proc check_visibility_available { what_kind } {
277 global target_triplet
279 # On NetWare, support makes no sense.
280 if { [istarget *-*-netware*] } {
284 if [string match "" $what_kind] { set what_kind "hidden" }
286 return [check_no_compiler_messages visibility_available_$what_kind object "
287 void f() __attribute__((visibility(\"$what_kind\")));
292 ###############################
293 # proc check_alias_available { }
294 ###############################
296 # Determine if the target toolchain supports the alias attribute.
298 # Returns 2 if the target supports aliases. Returns 1 if the target
299 # only supports weak aliased. Returns 0 if the target does not
300 # support aliases at all. Returns -1 if support for aliases could not
303 proc check_alias_available { } {
304 global alias_available_saved
307 if [info exists alias_available_saved] {
308 verbose "check_alias_available returning saved $alias_available_saved" 2
312 verbose "check_alias_available compiling testfile $src" 2
313 set f [open $src "w"]
314 # Compile a small test program. The definition of "g" is
315 # necessary to keep the Solaris assembler from complaining
317 puts $f "#ifdef __cplusplus\nextern \"C\"\n#endif\n"
318 puts $f "void g() {} void f() __attribute__((alias(\"g\")));"
320 set lines [${tool}_target_compile $src $obj object ""]
322 remote_file build delete $obj
324 if [string match "" $lines] then {
325 # No error messages, everything is OK.
326 set alias_available_saved 2
328 if [regexp "alias definitions not supported" $lines] {
329 verbose "check_alias_available target does not support aliases" 2
331 set objformat [gcc_target_object_format]
333 if { $objformat == "elf" } {
334 verbose "check_alias_available but target uses ELF format, so it ought to" 2
335 set alias_available_saved -1
337 set alias_available_saved 0
340 if [regexp "only weak aliases are supported" $lines] {
341 verbose "check_alias_available target supports only weak aliases" 2
342 set alias_available_saved 1
344 set alias_available_saved -1
349 verbose "check_alias_available returning $alias_available_saved" 2
352 return $alias_available_saved
355 # Returns true if --gc-sections is supported on the target.
357 proc check_gc_sections_available { } {
358 global gc_sections_available_saved
361 if {![info exists gc_sections_available_saved]} {
362 # Some targets don't support gc-sections despite whatever's
363 # advertised by ld's options.
364 if { [istarget alpha*-*-*]
365 || [istarget ia64-*-*] } {
366 set gc_sections_available_saved 0
370 # elf2flt uses -q (--emit-relocs), which is incompatible with
372 if { [board_info target exists ldflags]
373 && [regexp " -elf2flt\[ =\]" " [board_info target ldflags] "] } {
374 set gc_sections_available_saved 0
378 # VxWorks kernel modules are relocatable objects linked with -r,
379 # while RTP executables are linked with -q (--emit-relocs).
380 # Both of these options are incompatible with --gc-sections.
381 if { [istarget *-*-vxworks*] } {
382 set gc_sections_available_saved 0
386 # Check if the ld used by gcc supports --gc-sections.
387 set gcc_spec [${tool}_target_compile "-dumpspecs" "" "none" ""]
388 regsub ".*\n\*linker:\[ \t\]*\n(\[^ \t\n\]*).*" "$gcc_spec" {\1} linker
389 set gcc_ld [lindex [${tool}_target_compile "-print-prog-name=$linker" "" "none" ""] 0]
390 set ld_output [remote_exec host "$gcc_ld" "--help"]
391 if { [ string first "--gc-sections" $ld_output ] >= 0 } {
392 set gc_sections_available_saved 1
394 set gc_sections_available_saved 0
397 return $gc_sections_available_saved
400 # Return 1 if according to target_info struct and explicit target list
401 # target is supposed to support trampolines.
403 proc check_effective_target_trampolines { } {
404 if [target_info exists no_trampolines] {
407 if { [istarget avr-*-*]
408 || [istarget hppa2.0w-hp-hpux11.23]
409 || [istarget hppa64-hp-hpux11.23] } {
415 # Return 1 if according to target_info struct and explicit target list
416 # target is supposed to keep null pointer checks. This could be due to
417 # use of option fno-delete-null-pointer-checks or hardwired in target.
419 proc check_effective_target_keeps_null_pointer_checks { } {
420 if [target_info exists keeps_null_pointer_checks] {
423 if { [istarget avr-*-*] } {
429 # Return true if profiling is supported on the target.
431 proc check_profiling_available { test_what } {
432 global profiling_available_saved
434 verbose "Profiling argument is <$test_what>" 1
436 # These conditions depend on the argument so examine them before
437 # looking at the cache variable.
439 # Support for -p on solaris2 relies on mcrt1.o which comes with the
440 # vendor compiler. We cannot reliably predict the directory where the
441 # vendor compiler (and thus mcrt1.o) is installed so we can't
442 # necessarily find mcrt1.o even if we have it.
443 if { [istarget *-*-solaris2*] && [lindex $test_what 1] == "-p" } {
447 # Support for -p on irix relies on libprof1.a which doesn't appear to
448 # exist on any irix6 system currently posting testsuite results.
449 # Support for -pg on irix relies on gcrt1.o which doesn't exist yet.
450 # See: http://gcc.gnu.org/ml/gcc/2002-10/msg00169.html
451 if { [istarget mips*-*-irix*]
452 && ([lindex $test_what 1] == "-p" || [lindex $test_what 1] == "-pg") } {
456 # We don't yet support profiling for MIPS16.
457 if { [istarget mips*-*-*]
458 && ![check_effective_target_nomips16]
459 && ([lindex $test_what 1] == "-p"
460 || [lindex $test_what 1] == "-pg") } {
464 # MinGW does not support -p.
465 if { [istarget *-*-mingw*] && [lindex $test_what 1] == "-p" } {
469 # cygwin does not support -p.
470 if { [istarget *-*-cygwin*] && [lindex $test_what 1] == "-p" } {
474 # uClibc does not have gcrt1.o.
475 if { [check_effective_target_uclibc]
476 && ([lindex $test_what 1] == "-p"
477 || [lindex $test_what 1] == "-pg") } {
481 # Now examine the cache variable.
482 if {![info exists profiling_available_saved]} {
483 # Some targets don't have any implementation of __bb_init_func or are
484 # missing other needed machinery.
485 if { [istarget mmix-*-*]
486 || [istarget arm*-*-eabi*]
487 || [istarget picochip-*-*]
488 || [istarget *-*-netware*]
489 || [istarget arm*-*-elf]
490 || [istarget arm*-*-symbianelf*]
491 || [istarget avr-*-*]
492 || [istarget bfin-*-*]
493 || [istarget powerpc-*-eabi*]
494 || [istarget cris-*-*]
495 || [istarget crisv32-*-*]
496 || [istarget fido-*-elf]
497 || [istarget h8300-*-*]
498 || [istarget m32c-*-elf]
499 || [istarget m68k-*-elf]
500 || [istarget m68k-*-uclinux*]
501 || [istarget mips*-*-elf*]
502 || [istarget moxie-*-elf*]
503 || [istarget xstormy16-*]
504 || [istarget xtensa*-*-elf]
505 || [istarget *-*-rtems*]
506 || [istarget *-*-vxworks*] } {
507 set profiling_available_saved 0
509 set profiling_available_saved 1
513 return $profiling_available_saved
516 # Check to see if a target is "freestanding". This is as per the definition
517 # in Section 4 of C99 standard. Effectively, it is a target which supports no
518 # extra headers or libraries other than what is considered essential.
519 proc check_effective_target_freestanding { } {
520 if { [istarget picochip-*-*] } then {
527 # Return 1 if target has packed layout of structure members by
528 # default, 0 otherwise. Note that this is slightly different than
529 # whether the target has "natural alignment": both attributes may be
532 proc check_effective_target_default_packed { } {
533 return [check_no_compiler_messages default_packed assembly {
534 struct x { char a; long b; } c;
535 int s[sizeof (c) == sizeof (char) + sizeof (long) ? 1 : -1];
539 # Return 1 if target has PCC_BITFIELD_TYPE_MATTERS defined. See
540 # documentation, where the test also comes from.
542 proc check_effective_target_pcc_bitfield_type_matters { } {
543 # PCC_BITFIELD_TYPE_MATTERS isn't just about unnamed or empty
544 # bitfields, but let's stick to the example code from the docs.
545 return [check_no_compiler_messages pcc_bitfield_type_matters assembly {
546 struct foo1 { char x; char :0; char y; };
547 struct foo2 { char x; int :0; char y; };
548 int s[sizeof (struct foo1) != sizeof (struct foo2) ? 1 : -1];
552 # Return 1 if thread local storage (TLS) is supported, 0 otherwise.
554 proc check_effective_target_tls {} {
555 return [check_no_compiler_messages tls assembly {
557 int f (void) { return i; }
558 void g (int j) { i = j; }
562 # Return 1 if *native* thread local storage (TLS) is supported, 0 otherwise.
564 proc check_effective_target_tls_native {} {
565 # VxWorks uses emulated TLS machinery, but with non-standard helper
566 # functions, so we fail to automatically detect it.
567 global target_triplet
568 if { [regexp ".*-.*-vxworks.*" $target_triplet] } {
572 return [check_no_messages_and_pattern tls_native "!emutls" assembly {
574 int f (void) { return i; }
575 void g (int j) { i = j; }
579 # Return 1 if TLS executables can run correctly, 0 otherwise.
581 proc check_effective_target_tls_runtime {} {
582 return [check_runtime tls_runtime {
583 __thread int thr = 0;
584 int main (void) { return thr; }
588 # Return 1 if compilation with -fgraphite is error-free for trivial
591 proc check_effective_target_fgraphite {} {
592 return [check_no_compiler_messages fgraphite object {
597 # Return 1 if compilation with -fopenmp is error-free for trivial
600 proc check_effective_target_fopenmp {} {
601 return [check_no_compiler_messages fopenmp object {
606 # Return 1 if compilation with -pthread is error-free for trivial
609 proc check_effective_target_pthread {} {
610 return [check_no_compiler_messages pthread object {
615 # Return 1 if compilation with -mpe-aligned-commons is error-free
616 # for trivial code, 0 otherwise.
618 proc check_effective_target_pe_aligned_commons {} {
619 if { [istarget *-*-cygwin*] || [istarget *-*-mingw*] } {
620 return [check_no_compiler_messages pe_aligned_commons object {
622 } "-mpe-aligned-commons"]
627 # Return 1 if the target supports -fstack-protector
628 proc check_effective_target_fstack_protector {} {
629 return [check_runtime fstack_protector {
630 int main (void) { return 0; }
631 } "-fstack-protector"]
634 # Return 1 if compilation with -freorder-blocks-and-partition is error-free
635 # for trivial code, 0 otherwise.
637 proc check_effective_target_freorder {} {
638 return [check_no_compiler_messages freorder object {
640 } "-freorder-blocks-and-partition"]
643 # Return 1 if -fpic and -fPIC are supported, as in no warnings or errors
644 # emitted, 0 otherwise. Whether a shared library can actually be built is
645 # out of scope for this test.
647 proc check_effective_target_fpic { } {
648 # Note that M68K has a multilib that supports -fpic but not
649 # -fPIC, so we need to check both. We test with a program that
650 # requires GOT references.
651 foreach arg {fpic fPIC} {
652 if [check_no_compiler_messages $arg object {
653 extern int foo (void); extern int bar;
654 int baz (void) { return foo () + bar; }
662 # Return true if the target supports -mpaired-single (as used on MIPS).
664 proc check_effective_target_mpaired_single { } {
665 return [check_no_compiler_messages mpaired_single object {
670 # Return true if the target has access to FPU instructions.
672 proc check_effective_target_hard_float { } {
673 if { [istarget mips*-*-*] } {
674 return [check_no_compiler_messages hard_float assembly {
675 #if (defined __mips_soft_float || defined __mips16)
681 # The generic test equates hard_float with "no call for adding doubles".
682 return [check_no_messages_and_pattern hard_float "!\\(call" rtl-expand {
683 double a (double b, double c) { return b + c; }
687 # Return true if the target is a 64-bit MIPS target.
689 proc check_effective_target_mips64 { } {
690 return [check_no_compiler_messages mips64 assembly {
697 # Return true if the target is a MIPS target that does not produce
700 proc check_effective_target_nomips16 { } {
701 return [check_no_compiler_messages nomips16 object {
705 /* A cheap way of testing for -mflip-mips16. */
706 void foo (void) { asm ("addiu $20,$20,1"); }
707 void bar (void) { asm ("addiu $20,$20,1"); }
712 # Add the options needed for MIPS16 function attributes. At the moment,
713 # we don't support MIPS16 PIC.
715 proc add_options_for_mips16_attribute { flags } {
716 return "$flags -mno-abicalls -fno-pic -DMIPS16=__attribute__((mips16))"
719 # Return true if we can force a mode that allows MIPS16 code generation.
720 # We don't support MIPS16 PIC, and only support MIPS16 -mhard-float
723 proc check_effective_target_mips16_attribute { } {
724 return [check_no_compiler_messages mips16_attribute assembly {
728 #if defined __mips_hard_float \
729 && (!defined _ABIO32 || _MIPS_SIM != _ABIO32) \
730 && (!defined _ABIO64 || _MIPS_SIM != _ABIO64)
733 } [add_options_for_mips16_attribute ""]]
736 # Return 1 if the current multilib does not generate PIC by default.
738 proc check_effective_target_nonpic { } {
739 return [check_no_compiler_messages nonpic assembly {
746 # Return 1 if the target does not use a status wrapper.
748 proc check_effective_target_unwrapped { } {
749 if { [target_info needs_status_wrapper] != "" \
750 && [target_info needs_status_wrapper] != "0" } {
756 # Return true if iconv is supported on the target. In particular IBM1047.
758 proc check_iconv_available { test_what } {
761 # If the tool configuration file has not set libiconv, try "-liconv"
762 if { ![info exists libiconv] } {
763 set libiconv "-liconv"
765 set test_what [lindex $test_what 1]
766 return [check_runtime_nocache $test_what [subst {
772 cd = iconv_open ("$test_what", "UTF-8");
773 if (cd == (iconv_t) -1)
780 # Return true if named sections are supported on this target.
782 proc check_named_sections_available { } {
783 return [check_no_compiler_messages named_sections assembly {
784 int __attribute__ ((section("whatever"))) foo;
788 # Return 1 if the target supports Fortran real kinds larger than real(8),
791 # When the target name changes, replace the cached result.
793 proc check_effective_target_fortran_large_real { } {
794 return [check_no_compiler_messages fortran_large_real executable {
796 integer,parameter :: k = selected_real_kind (precision (0.0_8) + 1)
803 # Return 1 if the target supports Fortran integer kinds larger than
804 # integer(8), 0 otherwise.
806 # When the target name changes, replace the cached result.
808 proc check_effective_target_fortran_large_int { } {
809 return [check_no_compiler_messages fortran_large_int executable {
811 integer,parameter :: k = selected_int_kind (range (0_8) + 1)
817 # Return 1 if the target supports Fortran integer(16), 0 otherwise.
819 # When the target name changes, replace the cached result.
821 proc check_effective_target_fortran_integer_16 { } {
822 return [check_no_compiler_messages fortran_integer_16 executable {
829 # Return 1 if we can statically link libgfortran, 0 otherwise.
831 # When the target name changes, replace the cached result.
833 proc check_effective_target_static_libgfortran { } {
834 return [check_no_compiler_messages static_libgfortran executable {
841 # Return 1 if the target supports executing 750CL paired-single instructions, 0
842 # otherwise. Cache the result.
844 proc check_750cl_hw_available { } {
845 return [check_cached_effective_target 750cl_hw_available {
846 # If this is not the right target then we can skip the test.
847 if { ![istarget powerpc-*paired*] } {
850 check_runtime_nocache 750cl_hw_available {
854 asm volatile ("ps_mul v0,v0,v0");
856 asm volatile ("ps_mul 0,0,0");
865 # Return 1 if the target supports executing SSE2 instructions, 0
866 # otherwise. Cache the result.
868 proc check_sse2_hw_available { } {
869 return [check_cached_effective_target sse2_hw_available {
870 # If this is not the right target then we can skip the test.
871 if { !([istarget x86_64-*-*] || [istarget i?86-*-*]) } {
874 check_runtime_nocache sse2_hw_available {
878 unsigned int eax, ebx, ecx, edx = 0;
879 if (__get_cpuid (1, &eax, &ebx, &ecx, &edx))
880 return !(edx & bit_SSE2);
888 # Return 1 if the target supports executing AltiVec instructions, 0
889 # otherwise. Cache the result.
891 proc check_vmx_hw_available { } {
892 return [check_cached_effective_target vmx_hw_available {
893 # Some simulators are known to not support VMX instructions.
894 if { [istarget powerpc-*-eabi] || [istarget powerpc*-*-eabispe] } {
897 # Most targets don't require special flags for this test case, but
899 if { [istarget *-*-darwin*]
900 || [istarget *-*-aix*] } {
901 set options "-maltivec"
905 check_runtime_nocache vmx_hw_available {
909 asm volatile ("vor v0,v0,v0");
911 asm volatile ("vor 0,0,0");
920 # Return 1 if the target supports executing AltiVec and Cell PPU
921 # instructions, 0 otherwise. Cache the result.
923 proc check_effective_target_cell_hw { } {
924 return [check_cached_effective_target cell_hw_available {
925 # Some simulators are known to not support VMX and PPU instructions.
926 if { [istarget powerpc-*-eabi*] } {
929 # Most targets don't require special flags for this test
930 # case, but Darwin and AIX do.
931 if { [istarget *-*-darwin*]
932 || [istarget *-*-aix*] } {
933 set options "-maltivec -mcpu=cell"
935 set options "-mcpu=cell"
937 check_runtime_nocache cell_hw_available {
941 asm volatile ("vor v0,v0,v0");
942 asm volatile ("lvlx v0,r0,r0");
944 asm volatile ("vor 0,0,0");
945 asm volatile ("lvlx 0,0,0");
954 # Return 1 if the target supports executing 64-bit instructions, 0
955 # otherwise. Cache the result.
957 proc check_effective_target_powerpc64 { } {
958 global powerpc64_available_saved
961 if [info exists powerpc64_available_saved] {
962 verbose "check_effective_target_powerpc64 returning saved $powerpc64_available_saved" 2
964 set powerpc64_available_saved 0
966 # Some simulators are known to not support powerpc64 instructions.
967 if { [istarget powerpc-*-eabi*] || [istarget powerpc-ibm-aix*] } {
968 verbose "check_effective_target_powerpc64 returning 0" 2
969 return $powerpc64_available_saved
972 # Set up, compile, and execute a test program containing a 64-bit
973 # instruction. Include the current process ID in the file
974 # names to prevent conflicts with invocations for multiple
979 set f [open $src "w"]
980 puts $f "int main() {"
981 puts $f "#ifdef __MACH__"
982 puts $f " asm volatile (\"extsw r0,r0\");"
984 puts $f " asm volatile (\"extsw 0,0\");"
986 puts $f " return 0; }"
989 set opts "additional_flags=-mcpu=G5"
991 verbose "check_effective_target_powerpc64 compiling testfile $src" 2
992 set lines [${tool}_target_compile $src $exe executable "$opts"]
995 if [string match "" $lines] then {
996 # No error message, compilation succeeded.
997 set result [${tool}_load "./$exe" "" ""]
998 set status [lindex $result 0]
999 remote_file build delete $exe
1000 verbose "check_effective_target_powerpc64 testfile status is <$status>" 2
1002 if { $status == "pass" } then {
1003 set powerpc64_available_saved 1
1006 verbose "check_effective_target_powerpc64 testfile compilation failed" 2
1010 return $powerpc64_available_saved
1013 # GCC 3.4.0 for powerpc64-*-linux* included an ABI fix for passing
1014 # complex float arguments. This affects gfortran tests that call cabsf
1015 # in libm built by an earlier compiler. Return 1 if libm uses the same
1016 # argument passing as the compiler under test, 0 otherwise.
1018 # When the target name changes, replace the cached result.
1020 proc check_effective_target_broken_cplxf_arg { } {
1021 return [check_cached_effective_target broken_cplxf_arg {
1022 # Skip the work for targets known not to be affected.
1023 if { ![istarget powerpc64-*-linux*] } {
1025 } elseif { ![is-effective-target lp64] } {
1028 check_runtime_nocache broken_cplxf_arg {
1029 #include <complex.h>
1030 extern void abort (void);
1031 float fabsf (float);
1032 float cabsf (_Complex float);
1039 if (fabsf (f - 5.0) > 0.0001)
1048 proc check_alpha_max_hw_available { } {
1049 return [check_runtime alpha_max_hw_available {
1050 int main() { return __builtin_alpha_amask(1<<8) != 0; }
1054 # Returns true iff the FUNCTION is available on the target system.
1055 # (This is essentially a Tcl implementation of Autoconf's
1058 proc check_function_available { function } {
1059 return [check_no_compiler_messages ${function}_available \
1065 int main () { $function (); }
1069 # Returns true iff "fork" is available on the target system.
1071 proc check_fork_available {} {
1072 return [check_function_available "fork"]
1075 # Returns true iff "mkfifo" is available on the target system.
1077 proc check_mkfifo_available {} {
1078 if {[istarget *-*-cygwin*]} {
1079 # Cygwin has mkfifo, but support is incomplete.
1083 return [check_function_available "mkfifo"]
1086 # Returns true iff "__cxa_atexit" is used on the target system.
1088 proc check_cxa_atexit_available { } {
1089 return [check_cached_effective_target cxa_atexit_available {
1090 if { [istarget "hppa*-*-hpux10*"] } {
1091 # HP-UX 10 doesn't have __cxa_atexit but subsequent test passes.
1093 } elseif { [istarget "*-*-vxworks"] } {
1094 # vxworks doesn't have __cxa_atexit but subsequent test passes.
1097 check_runtime_nocache cxa_atexit_available {
1100 static unsigned int count;
1117 Y() { f(); count = 2; }
1126 int main() { return 0; }
1133 # Return 1 if we're generating 32-bit code using default options, 0
1136 proc check_effective_target_ilp32 { } {
1137 return [check_no_compiler_messages ilp32 object {
1138 int dummy[sizeof (int) == 4
1139 && sizeof (void *) == 4
1140 && sizeof (long) == 4 ? 1 : -1];
1144 # Return 1 if we're generating 32-bit or larger integers using default
1145 # options, 0 otherwise.
1147 proc check_effective_target_int32plus { } {
1148 return [check_no_compiler_messages int32plus object {
1149 int dummy[sizeof (int) >= 4 ? 1 : -1];
1153 # Return 1 if we're generating 32-bit or larger pointers using default
1154 # options, 0 otherwise.
1156 proc check_effective_target_ptr32plus { } {
1157 return [check_no_compiler_messages ptr32plus object {
1158 int dummy[sizeof (void *) >= 4 ? 1 : -1];
1162 # Return 1 if we support 32-bit or larger array and structure sizes
1163 # using default options, 0 otherwise.
1165 proc check_effective_target_size32plus { } {
1166 return [check_no_compiler_messages size32plus object {
1171 # Returns 1 if we're generating 16-bit or smaller integers with the
1172 # default options, 0 otherwise.
1174 proc check_effective_target_int16 { } {
1175 return [check_no_compiler_messages int16 object {
1176 int dummy[sizeof (int) < 4 ? 1 : -1];
1180 # Return 1 if we're generating 64-bit code using default options, 0
1183 proc check_effective_target_lp64 { } {
1184 return [check_no_compiler_messages lp64 object {
1185 int dummy[sizeof (int) == 4
1186 && sizeof (void *) == 8
1187 && sizeof (long) == 8 ? 1 : -1];
1191 # Return 1 if we're generating 64-bit code using default llp64 options,
1194 proc check_effective_target_llp64 { } {
1195 return [check_no_compiler_messages llp64 object {
1196 int dummy[sizeof (int) == 4
1197 && sizeof (void *) == 8
1198 && sizeof (long long) == 8
1199 && sizeof (long) == 4 ? 1 : -1];
1203 # Return 1 if the target supports long double larger than double,
1206 proc check_effective_target_large_long_double { } {
1207 return [check_no_compiler_messages large_long_double object {
1208 int dummy[sizeof(long double) > sizeof(double) ? 1 : -1];
1212 # Return 1 if the target supports double larger than float,
1215 proc check_effective_target_large_double { } {
1216 return [check_no_compiler_messages large_double object {
1217 int dummy[sizeof(double) > sizeof(float) ? 1 : -1];
1221 # Return 1 if the target supports double of 64 bits,
1224 proc check_effective_target_double64 { } {
1225 return [check_no_compiler_messages double64 object {
1226 int dummy[sizeof(double) == 8 ? 1 : -1];
1230 # Return 1 if the target supports double of at least 64 bits,
1233 proc check_effective_target_double64plus { } {
1234 return [check_no_compiler_messages double64plus object {
1235 int dummy[sizeof(double) >= 8 ? 1 : -1];
1239 # Return 1 if the target supports compiling fixed-point,
1242 proc check_effective_target_fixed_point { } {
1243 return [check_no_compiler_messages fixed_point object {
1244 _Sat _Fract x; _Sat _Accum y;
1248 # Return 1 if the target supports compiling decimal floating point,
1251 proc check_effective_target_dfp_nocache { } {
1252 verbose "check_effective_target_dfp_nocache: compiling source" 2
1253 set ret [check_no_compiler_messages_nocache dfp object {
1254 _Decimal32 x; _Decimal64 y; _Decimal128 z;
1256 verbose "check_effective_target_dfp_nocache: returning $ret" 2
1260 proc check_effective_target_dfprt_nocache { } {
1261 return [check_runtime_nocache dfprt {
1262 _Decimal32 x = 1.2df; _Decimal64 y = 2.3dd; _Decimal128 z;
1263 int main () { z = x + y; return 0; }
1267 # Return 1 if the target supports compiling Decimal Floating Point,
1270 # This won't change for different subtargets so cache the result.
1272 proc check_effective_target_dfp { } {
1273 return [check_cached_effective_target dfp {
1274 check_effective_target_dfp_nocache
1278 # Return 1 if the target supports linking and executing Decimal Floating
1279 # Point, # 0 otherwise.
1281 # This won't change for different subtargets so cache the result.
1283 proc check_effective_target_dfprt { } {
1284 return [check_cached_effective_target dfprt {
1285 check_effective_target_dfprt_nocache
1289 # Return 1 if the target needs a command line argument to enable a SIMD
1292 proc check_effective_target_vect_cmdline_needed { } {
1293 global et_vect_cmdline_needed_saved
1294 global et_vect_cmdline_needed_target_name
1296 if { ![info exists et_vect_cmdline_needed_target_name] } {
1297 set et_vect_cmdline_needed_target_name ""
1300 # If the target has changed since we set the cached value, clear it.
1301 set current_target [current_target_name]
1302 if { $current_target != $et_vect_cmdline_needed_target_name } {
1303 verbose "check_effective_target_vect_cmdline_needed: `$et_vect_cmdline_needed_target_name' `$current_target'" 2
1304 set et_vect_cmdline_needed_target_name $current_target
1305 if { [info exists et_vect_cmdline_needed_saved] } {
1306 verbose "check_effective_target_vect_cmdline_needed: removing cached result" 2
1307 unset et_vect_cmdline_needed_saved
1311 if [info exists et_vect_cmdline_needed_saved] {
1312 verbose "check_effective_target_vect_cmdline_needed: using cached result" 2
1314 set et_vect_cmdline_needed_saved 1
1315 if { [istarget ia64-*-*]
1316 || (([istarget x86_64-*-*] || [istarget i?86-*-*])
1317 && [check_effective_target_lp64])
1318 || ([istarget powerpc*-*-*]
1319 && ([check_effective_target_powerpc_spe]
1320 || [check_effective_target_powerpc_altivec]))
1321 || [istarget spu-*-*]
1322 || ([istarget arm*-*-*] && [check_effective_target_arm_neon]) } {
1323 set et_vect_cmdline_needed_saved 0
1327 verbose "check_effective_target_vect_cmdline_needed: returning $et_vect_cmdline_needed_saved" 2
1328 return $et_vect_cmdline_needed_saved
1331 # Return 1 if the target supports hardware vectors of int, 0 otherwise.
1333 # This won't change for different subtargets so cache the result.
1335 proc check_effective_target_vect_int { } {
1336 global et_vect_int_saved
1338 if [info exists et_vect_int_saved] {
1339 verbose "check_effective_target_vect_int: using cached result" 2
1341 set et_vect_int_saved 0
1342 if { [istarget i?86-*-*]
1343 || ([istarget powerpc*-*-*]
1344 && ![istarget powerpc-*-linux*paired*])
1345 || [istarget spu-*-*]
1346 || [istarget x86_64-*-*]
1347 || [istarget sparc*-*-*]
1348 || [istarget alpha*-*-*]
1349 || [istarget ia64-*-*]
1350 || [check_effective_target_arm32] } {
1351 set et_vect_int_saved 1
1355 verbose "check_effective_target_vect_int: returning $et_vect_int_saved" 2
1356 return $et_vect_int_saved
1359 # Return 1 if the target supports signed int->float conversion
1362 proc check_effective_target_vect_intfloat_cvt { } {
1363 global et_vect_intfloat_cvt_saved
1365 if [info exists et_vect_intfloat_cvt_saved] {
1366 verbose "check_effective_target_vect_intfloat_cvt: using cached result" 2
1368 set et_vect_intfloat_cvt_saved 0
1369 if { [istarget i?86-*-*]
1370 || ([istarget powerpc*-*-*]
1371 && ![istarget powerpc-*-linux*paired*])
1372 || [istarget x86_64-*-*] } {
1373 set et_vect_intfloat_cvt_saved 1
1377 verbose "check_effective_target_vect_intfloat_cvt: returning $et_vect_intfloat_cvt_saved" 2
1378 return $et_vect_intfloat_cvt_saved
1382 # Return 1 if the target supports unsigned int->float conversion
1385 proc check_effective_target_vect_uintfloat_cvt { } {
1386 global et_vect_uintfloat_cvt_saved
1388 if [info exists et_vect_uintfloat_cvt_saved] {
1389 verbose "check_effective_target_vect_uintfloat_cvt: using cached result" 2
1391 set et_vect_uintfloat_cvt_saved 0
1392 if { ([istarget powerpc*-*-*]
1393 && ![istarget powerpc-*-linux*paired*]) } {
1394 set et_vect_uintfloat_cvt_saved 1
1398 verbose "check_effective_target_vect_uintfloat_cvt: returning $et_vect_uintfloat_cvt_saved" 2
1399 return $et_vect_uintfloat_cvt_saved
1403 # Return 1 if the target supports signed float->int conversion
1406 proc check_effective_target_vect_floatint_cvt { } {
1407 global et_vect_floatint_cvt_saved
1409 if [info exists et_vect_floatint_cvt_saved] {
1410 verbose "check_effective_target_vect_floatint_cvt: using cached result" 2
1412 set et_vect_floatint_cvt_saved 0
1413 if { [istarget i?86-*-*]
1414 || ([istarget powerpc*-*-*]
1415 && ![istarget powerpc-*-linux*paired*])
1416 || [istarget x86_64-*-*] } {
1417 set et_vect_floatint_cvt_saved 1
1421 verbose "check_effective_target_vect_floatint_cvt: returning $et_vect_floatint_cvt_saved" 2
1422 return $et_vect_floatint_cvt_saved
1425 # Return 1 if the target supports unsigned float->int conversion
1428 proc check_effective_target_vect_floatuint_cvt { } {
1429 global et_vect_floatuint_cvt_saved
1431 if [info exists et_vect_floatuint_cvt_saved] {
1432 verbose "check_effective_target_vect_floatuint_cvt: using cached result" 2
1434 set et_vect_floatuint_cvt_saved 0
1435 if { ([istarget powerpc*-*-*]
1436 && ![istarget powerpc-*-linux*paired*]) } {
1437 set et_vect_floatuint_cvt_saved 1
1441 verbose "check_effective_target_vect_floatuint_cvt: returning $et_vect_floatuint_cvt_saved" 2
1442 return $et_vect_floatuint_cvt_saved
1445 # Return 1 is this is an arm target using 32-bit instructions
1446 proc check_effective_target_arm32 { } {
1447 return [check_no_compiler_messages arm32 assembly {
1448 #if !defined(__arm__) || (defined(__thumb__) && !defined(__thumb2__))
1454 # Return 1 if this is an ARM target supporting -mfpu=vfp
1455 # -mfloat-abi=softfp. Some multilibs may be incompatible with these
1458 proc check_effective_target_arm_vfp_ok { } {
1459 if { [check_effective_target_arm32] } {
1460 return [check_no_compiler_messages arm_vfp_ok object {
1462 } "-mfpu=vfp -mfloat-abi=softfp"]
1468 # Return 1 if this is an ARM target supporting -mfpu=neon
1469 # -mfloat-abi=softfp. Some multilibs may be incompatible with these
1472 proc check_effective_target_arm_neon_ok { } {
1473 if { [check_effective_target_arm32] } {
1474 return [check_no_compiler_messages arm_neon_ok object {
1476 } "-mfpu=neon -mfloat-abi=softfp"]
1482 # Return 1 is this is an ARM target where -mthumb causes Thumb-1 to be
1485 proc check_effective_target_arm_thumb1_ok { } {
1486 return [check_no_compiler_messages arm_thumb1_ok assembly {
1487 #if !defined(__arm__) || !defined(__thumb__) || defined(__thumb2__)
1493 # Return 1 is this is an ARM target where -mthumb causes Thumb-2 to be
1496 proc check_effective_target_arm_thumb2_ok { } {
1497 return [check_no_compiler_messages arm_thumb2_ok assembly {
1498 #if !defined(__thumb2__)
1504 # Return 1 if the target supports executing NEON instructions, 0
1505 # otherwise. Cache the result.
1507 proc check_effective_target_arm_neon_hw { } {
1508 return [check_runtime arm_neon_hw_available {
1512 long long a = 0, b = 1;
1513 asm ("vorr %P0, %P1, %P2"
1515 : "0" (a), "w" (b));
1518 } "-mfpu=neon -mfloat-abi=softfp"]
1521 # Return 1 if this is a ARM target with NEON enabled.
1523 proc check_effective_target_arm_neon { } {
1524 if { [check_effective_target_arm32] } {
1525 return [check_no_compiler_messages arm_neon object {
1526 #ifndef __ARM_NEON__
1537 # Return 1 if this a Loongson-2E or -2F target using an ABI that supports
1538 # the Loongson vector modes.
1540 proc check_effective_target_mips_loongson { } {
1541 return [check_no_compiler_messages loongson assembly {
1542 #if !defined(__mips_loongson_vector_rev)
1548 # Return 1 if this is an ARM target that adheres to the ABI for the ARM
1551 proc check_effective_target_arm_eabi { } {
1552 return [check_no_compiler_messages arm_eabi object {
1553 #ifndef __ARM_EABI__
1561 # Return 1 if this is a PowerPC target with floating-point registers.
1563 proc check_effective_target_powerpc_fprs { } {
1564 if { [istarget powerpc*-*-*]
1565 || [istarget rs6000-*-*] } {
1566 return [check_no_compiler_messages powerpc_fprs object {
1578 # Return 1 if this is a PowerPC target with hardware double-precision
1581 proc check_effective_target_powerpc_hard_double { } {
1582 if { [istarget powerpc*-*-*]
1583 || [istarget rs6000-*-*] } {
1584 return [check_no_compiler_messages powerpc_hard_double object {
1596 # Return 1 if this is a PowerPC target supporting -maltivec.
1598 proc check_effective_target_powerpc_altivec_ok { } {
1599 if { ([istarget powerpc*-*-*]
1600 && ![istarget powerpc-*-linux*paired*])
1601 || [istarget rs6000-*-*] } {
1602 # AltiVec is not supported on AIX before 5.3.
1603 if { [istarget powerpc*-*-aix4*]
1604 || [istarget powerpc*-*-aix5.1*]
1605 || [istarget powerpc*-*-aix5.2*] } {
1608 return [check_no_compiler_messages powerpc_altivec_ok object {
1616 # Return 1 if this is a PowerPC target supporting -mcpu=cell.
1618 proc check_effective_target_powerpc_ppu_ok { } {
1619 if [check_effective_target_powerpc_altivec_ok] {
1620 return [check_no_compiler_messages cell_asm_available object {
1623 asm volatile ("lvlx v0,v0,v0");
1625 asm volatile ("lvlx 0,0,0");
1635 # Return 1 if this is a PowerPC target that supports SPU.
1637 proc check_effective_target_powerpc_spu { } {
1638 if [istarget powerpc*-*-linux*] {
1639 return [check_effective_target_powerpc_altivec_ok]
1645 # Return 1 if this is a PowerPC SPE target. The check includes options
1646 # specified by dg-options for this test, so don't cache the result.
1648 proc check_effective_target_powerpc_spe_nocache { } {
1649 if { [istarget powerpc*-*-*] } {
1650 return [check_no_compiler_messages_nocache powerpc_spe object {
1656 } [current_compiler_flags]]
1662 # Return 1 if this is a PowerPC target with SPE enabled.
1664 proc check_effective_target_powerpc_spe { } {
1665 if { [istarget powerpc*-*-*] } {
1666 return [check_no_compiler_messages powerpc_spe object {
1678 # Return 1 if this is a PowerPC target with Altivec enabled.
1680 proc check_effective_target_powerpc_altivec { } {
1681 if { [istarget powerpc*-*-*] } {
1682 return [check_no_compiler_messages powerpc_altivec object {
1694 # Return 1 if this is a PowerPC 405 target. The check includes options
1695 # specified by dg-options for this test, so don't cache the result.
1697 proc check_effective_target_powerpc_405_nocache { } {
1698 if { [istarget powerpc*-*-*] || [istarget rs6000-*-*] } {
1699 return [check_no_compiler_messages_nocache powerpc_405 object {
1705 } [current_compiler_flags]]
1711 # Return 1 if this is a SPU target with a toolchain that
1712 # supports automatic overlay generation.
1714 proc check_effective_target_spu_auto_overlay { } {
1715 if { [istarget spu*-*-elf*] } {
1716 return [check_no_compiler_messages spu_auto_overlay executable {
1718 } "-Wl,--auto-overlay" ]
1724 # The VxWorks SPARC simulator accepts only EM_SPARC executables and
1725 # chokes on EM_SPARC32PLUS or EM_SPARCV9 executables. Return 1 if the
1726 # test environment appears to run executables on such a simulator.
1728 proc check_effective_target_ultrasparc_hw { } {
1729 return [check_runtime ultrasparc_hw {
1730 int main() { return 0; }
1731 } "-mcpu=ultrasparc"]
1734 # Return 1 if the target supports hardware vector shift operation.
1736 proc check_effective_target_vect_shift { } {
1737 global et_vect_shift_saved
1739 if [info exists et_vect_shift_saved] {
1740 verbose "check_effective_target_vect_shift: using cached result" 2
1742 set et_vect_shift_saved 0
1743 if { ([istarget powerpc*-*-*]
1744 && ![istarget powerpc-*-linux*paired*])
1745 || [istarget ia64-*-*]
1746 || [istarget i?86-*-*]
1747 || [istarget x86_64-*-*]
1748 || [check_effective_target_arm32] } {
1749 set et_vect_shift_saved 1
1753 verbose "check_effective_target_vect_shift: returning $et_vect_shift_saved" 2
1754 return $et_vect_shift_saved
1757 # Return 1 if the target supports hardware vectors of long, 0 otherwise.
1759 # This can change for different subtargets so do not cache the result.
1761 proc check_effective_target_vect_long { } {
1762 if { [istarget i?86-*-*]
1763 || (([istarget powerpc*-*-*]
1764 && ![istarget powerpc-*-linux*paired*])
1765 && [check_effective_target_ilp32])
1766 || [istarget x86_64-*-*]
1767 || [check_effective_target_arm32]
1768 || ([istarget sparc*-*-*] && [check_effective_target_ilp32]) } {
1774 verbose "check_effective_target_vect_long: returning $answer" 2
1778 # Return 1 if the target supports hardware vectors of float, 0 otherwise.
1780 # This won't change for different subtargets so cache the result.
1782 proc check_effective_target_vect_float { } {
1783 global et_vect_float_saved
1785 if [info exists et_vect_float_saved] {
1786 verbose "check_effective_target_vect_float: using cached result" 2
1788 set et_vect_float_saved 0
1789 if { [istarget i?86-*-*]
1790 || [istarget powerpc*-*-*]
1791 || [istarget spu-*-*]
1792 || [istarget mipsisa64*-*-*]
1793 || [istarget x86_64-*-*]
1794 || [istarget ia64-*-*]
1795 || [check_effective_target_arm32] } {
1796 set et_vect_float_saved 1
1800 verbose "check_effective_target_vect_float: returning $et_vect_float_saved" 2
1801 return $et_vect_float_saved
1804 # Return 1 if the target supports hardware vectors of double, 0 otherwise.
1806 # This won't change for different subtargets so cache the result.
1808 proc check_effective_target_vect_double { } {
1809 global et_vect_double_saved
1811 if [info exists et_vect_double_saved] {
1812 verbose "check_effective_target_vect_double: using cached result" 2
1814 set et_vect_double_saved 0
1815 if { [istarget i?86-*-*]
1816 || [istarget x86_64-*-*]
1817 || [istarget spu-*-*] } {
1818 set et_vect_double_saved 1
1822 verbose "check_effective_target_vect_double: returning $et_vect_double_saved" 2
1823 return $et_vect_double_saved
1826 # Return 1 if the target supports hardware vectors of long long, 0 otherwise.
1828 # This won't change for different subtargets so cache the result.
1830 proc check_effective_target_vect_long_long { } {
1831 global et_vect_long_long_saved
1833 if [info exists et_vect_long_long_saved] {
1834 verbose "check_effective_target_vect_long_long: using cached result" 2
1836 set et_vect_long_long_saved 0
1837 if { [istarget i?86-*-*]
1838 || [istarget x86_64-*-*] } {
1839 set et_vect_long_long_saved 1
1843 verbose "check_effective_target_vect_long_long: returning $et_vect_long_long_saved" 2
1844 return $et_vect_long_long_saved
1848 # Return 1 if the target plus current options does not support a vector
1849 # max instruction on "int", 0 otherwise.
1851 # This won't change for different subtargets so cache the result.
1853 proc check_effective_target_vect_no_int_max { } {
1854 global et_vect_no_int_max_saved
1856 if [info exists et_vect_no_int_max_saved] {
1857 verbose "check_effective_target_vect_no_int_max: using cached result" 2
1859 set et_vect_no_int_max_saved 0
1860 if { [istarget sparc*-*-*]
1861 || [istarget spu-*-*]
1862 || [istarget alpha*-*-*] } {
1863 set et_vect_no_int_max_saved 1
1866 verbose "check_effective_target_vect_no_int_max: returning $et_vect_no_int_max_saved" 2
1867 return $et_vect_no_int_max_saved
1870 # Return 1 if the target plus current options does not support a vector
1871 # add instruction on "int", 0 otherwise.
1873 # This won't change for different subtargets so cache the result.
1875 proc check_effective_target_vect_no_int_add { } {
1876 global et_vect_no_int_add_saved
1878 if [info exists et_vect_no_int_add_saved] {
1879 verbose "check_effective_target_vect_no_int_add: using cached result" 2
1881 set et_vect_no_int_add_saved 0
1882 # Alpha only supports vector add on V8QI and V4HI.
1883 if { [istarget alpha*-*-*] } {
1884 set et_vect_no_int_add_saved 1
1887 verbose "check_effective_target_vect_no_int_add: returning $et_vect_no_int_add_saved" 2
1888 return $et_vect_no_int_add_saved
1891 # Return 1 if the target plus current options does not support vector
1892 # bitwise instructions, 0 otherwise.
1894 # This won't change for different subtargets so cache the result.
1896 proc check_effective_target_vect_no_bitwise { } {
1897 global et_vect_no_bitwise_saved
1899 if [info exists et_vect_no_bitwise_saved] {
1900 verbose "check_effective_target_vect_no_bitwise: using cached result" 2
1902 set et_vect_no_bitwise_saved 0
1904 verbose "check_effective_target_vect_no_bitwise: returning $et_vect_no_bitwise_saved" 2
1905 return $et_vect_no_bitwise_saved
1908 # Return 1 if the target plus current options supports vector permutation,
1911 # This won't change for different subtargets so cache the result.
1913 proc check_effective_target_vect_perm { } {
1916 if [info exists et_vect_perm_saved] {
1917 verbose "check_effective_target_vect_perm: using cached result" 2
1919 set et_vect_perm_saved 0
1920 if { [istarget powerpc*-*-*]
1921 || [istarget spu-*-*] } {
1922 set et_vect_perm_saved 1
1925 verbose "check_effective_target_vect_perm: returning $et_vect_perm_saved" 2
1926 return $et_vect_perm_saved
1930 # Return 1 if the target plus current options supports a vector
1931 # widening summation of *short* args into *int* result, 0 otherwise.
1932 # A target can also support this widening summation if it can support
1933 # promotion (unpacking) from shorts to ints.
1935 # This won't change for different subtargets so cache the result.
1937 proc check_effective_target_vect_widen_sum_hi_to_si { } {
1938 global et_vect_widen_sum_hi_to_si
1940 if [info exists et_vect_widen_sum_hi_to_si_saved] {
1941 verbose "check_effective_target_vect_widen_sum_hi_to_si: using cached result" 2
1943 set et_vect_widen_sum_hi_to_si_saved [check_effective_target_vect_unpack]
1944 if { [istarget powerpc*-*-*]
1945 || [istarget ia64-*-*] } {
1946 set et_vect_widen_sum_hi_to_si_saved 1
1949 verbose "check_effective_target_vect_widen_sum_hi_to_si: returning $et_vect_widen_sum_hi_to_si_saved" 2
1950 return $et_vect_widen_sum_hi_to_si_saved
1953 # Return 1 if the target plus current options supports a vector
1954 # widening summation of *char* args into *short* result, 0 otherwise.
1955 # A target can also support this widening summation if it can support
1956 # promotion (unpacking) from chars to shorts.
1958 # This won't change for different subtargets so cache the result.
1960 proc check_effective_target_vect_widen_sum_qi_to_hi { } {
1961 global et_vect_widen_sum_qi_to_hi
1963 if [info exists et_vect_widen_sum_qi_to_hi_saved] {
1964 verbose "check_effective_target_vect_widen_sum_qi_to_hi: using cached result" 2
1966 set et_vect_widen_sum_qi_to_hi_saved 0
1967 if { [check_effective_target_vect_unpack]
1968 || [istarget ia64-*-*] } {
1969 set et_vect_widen_sum_qi_to_hi_saved 1
1972 verbose "check_effective_target_vect_widen_sum_qi_to_hi: returning $et_vect_widen_sum_qi_to_hi_saved" 2
1973 return $et_vect_widen_sum_qi_to_hi_saved
1976 # Return 1 if the target plus current options supports a vector
1977 # widening summation of *char* args into *int* result, 0 otherwise.
1979 # This won't change for different subtargets so cache the result.
1981 proc check_effective_target_vect_widen_sum_qi_to_si { } {
1982 global et_vect_widen_sum_qi_to_si
1984 if [info exists et_vect_widen_sum_qi_to_si_saved] {
1985 verbose "check_effective_target_vect_widen_sum_qi_to_si: using cached result" 2
1987 set et_vect_widen_sum_qi_to_si_saved 0
1988 if { [istarget powerpc*-*-*] } {
1989 set et_vect_widen_sum_qi_to_si_saved 1
1992 verbose "check_effective_target_vect_widen_sum_qi_to_si: returning $et_vect_widen_sum_qi_to_si_saved" 2
1993 return $et_vect_widen_sum_qi_to_si_saved
1996 # Return 1 if the target plus current options supports a vector
1997 # widening multiplication of *char* args into *short* result, 0 otherwise.
1998 # A target can also support this widening multplication if it can support
1999 # promotion (unpacking) from chars to shorts, and vect_short_mult (non-widening
2000 # multiplication of shorts).
2002 # This won't change for different subtargets so cache the result.
2005 proc check_effective_target_vect_widen_mult_qi_to_hi { } {
2006 global et_vect_widen_mult_qi_to_hi
2008 if [info exists et_vect_widen_mult_qi_to_hi_saved] {
2009 verbose "check_effective_target_vect_widen_mult_qi_to_hi: using cached result" 2
2011 if { [check_effective_target_vect_unpack]
2012 && [check_effective_target_vect_short_mult] } {
2013 set et_vect_widen_mult_qi_to_hi_saved 1
2015 set et_vect_widen_mult_qi_to_hi_saved 0
2017 if { [istarget powerpc*-*-*] } {
2018 set et_vect_widen_mult_qi_to_hi_saved 1
2021 verbose "check_effective_target_vect_widen_mult_qi_to_hi: returning $et_vect_widen_mult_qi_to_hi_saved" 2
2022 return $et_vect_widen_mult_qi_to_hi_saved
2025 # Return 1 if the target plus current options supports a vector
2026 # widening multiplication of *short* args into *int* result, 0 otherwise.
2027 # A target can also support this widening multplication if it can support
2028 # promotion (unpacking) from shorts to ints, and vect_int_mult (non-widening
2029 # multiplication of ints).
2031 # This won't change for different subtargets so cache the result.
2034 proc check_effective_target_vect_widen_mult_hi_to_si { } {
2035 global et_vect_widen_mult_hi_to_si
2037 if [info exists et_vect_widen_mult_hi_to_si_saved] {
2038 verbose "check_effective_target_vect_widen_mult_hi_to_si: using cached result" 2
2040 if { [check_effective_target_vect_unpack]
2041 && [check_effective_target_vect_int_mult] } {
2042 set et_vect_widen_mult_hi_to_si_saved 1
2044 set et_vect_widen_mult_hi_to_si_saved 0
2046 if { [istarget powerpc*-*-*]
2047 || [istarget spu-*-*]
2048 || [istarget i?86-*-*]
2049 || [istarget x86_64-*-*] } {
2050 set et_vect_widen_mult_hi_to_si_saved 1
2053 verbose "check_effective_target_vect_widen_mult_hi_to_si: returning $et_vect_widen_mult_hi_to_si_saved" 2
2054 return $et_vect_widen_mult_hi_to_si_saved
2057 # Return 1 if the target plus current options supports a vector
2058 # dot-product of signed chars, 0 otherwise.
2060 # This won't change for different subtargets so cache the result.
2062 proc check_effective_target_vect_sdot_qi { } {
2063 global et_vect_sdot_qi
2065 if [info exists et_vect_sdot_qi_saved] {
2066 verbose "check_effective_target_vect_sdot_qi: using cached result" 2
2068 set et_vect_sdot_qi_saved 0
2070 verbose "check_effective_target_vect_sdot_qi: returning $et_vect_sdot_qi_saved" 2
2071 return $et_vect_sdot_qi_saved
2074 # Return 1 if the target plus current options supports a vector
2075 # dot-product of unsigned chars, 0 otherwise.
2077 # This won't change for different subtargets so cache the result.
2079 proc check_effective_target_vect_udot_qi { } {
2080 global et_vect_udot_qi
2082 if [info exists et_vect_udot_qi_saved] {
2083 verbose "check_effective_target_vect_udot_qi: using cached result" 2
2085 set et_vect_udot_qi_saved 0
2086 if { [istarget powerpc*-*-*] } {
2087 set et_vect_udot_qi_saved 1
2090 verbose "check_effective_target_vect_udot_qi: returning $et_vect_udot_qi_saved" 2
2091 return $et_vect_udot_qi_saved
2094 # Return 1 if the target plus current options supports a vector
2095 # dot-product of signed shorts, 0 otherwise.
2097 # This won't change for different subtargets so cache the result.
2099 proc check_effective_target_vect_sdot_hi { } {
2100 global et_vect_sdot_hi
2102 if [info exists et_vect_sdot_hi_saved] {
2103 verbose "check_effective_target_vect_sdot_hi: using cached result" 2
2105 set et_vect_sdot_hi_saved 0
2106 if { ([istarget powerpc*-*-*] && ![istarget powerpc-*-linux*paired*])
2107 || [istarget i?86-*-*]
2108 || [istarget x86_64-*-*] } {
2109 set et_vect_sdot_hi_saved 1
2112 verbose "check_effective_target_vect_sdot_hi: returning $et_vect_sdot_hi_saved" 2
2113 return $et_vect_sdot_hi_saved
2116 # Return 1 if the target plus current options supports a vector
2117 # dot-product of unsigned shorts, 0 otherwise.
2119 # This won't change for different subtargets so cache the result.
2121 proc check_effective_target_vect_udot_hi { } {
2122 global et_vect_udot_hi
2124 if [info exists et_vect_udot_hi_saved] {
2125 verbose "check_effective_target_vect_udot_hi: using cached result" 2
2127 set et_vect_udot_hi_saved 0
2128 if { ([istarget powerpc*-*-*] && ![istarget powerpc-*-linux*paired*]) } {
2129 set et_vect_udot_hi_saved 1
2132 verbose "check_effective_target_vect_udot_hi: returning $et_vect_udot_hi_saved" 2
2133 return $et_vect_udot_hi_saved
2137 # Return 1 if the target plus current options supports a vector
2138 # demotion (packing) of shorts (to chars) and ints (to shorts)
2139 # using modulo arithmetic, 0 otherwise.
2141 # This won't change for different subtargets so cache the result.
2143 proc check_effective_target_vect_pack_trunc { } {
2144 global et_vect_pack_trunc
2146 if [info exists et_vect_pack_trunc_saved] {
2147 verbose "check_effective_target_vect_pack_trunc: using cached result" 2
2149 set et_vect_pack_trunc_saved 0
2150 if { ([istarget powerpc*-*-*] && ![istarget powerpc-*-linux*paired*])
2151 || [istarget i?86-*-*]
2152 || [istarget x86_64-*-*]
2153 || [istarget spu-*-*] } {
2154 set et_vect_pack_trunc_saved 1
2157 verbose "check_effective_target_vect_pack_trunc: returning $et_vect_pack_trunc_saved" 2
2158 return $et_vect_pack_trunc_saved
2161 # Return 1 if the target plus current options supports a vector
2162 # promotion (unpacking) of chars (to shorts) and shorts (to ints), 0 otherwise.
2164 # This won't change for different subtargets so cache the result.
2166 proc check_effective_target_vect_unpack { } {
2167 global et_vect_unpack
2169 if [info exists et_vect_unpack_saved] {
2170 verbose "check_effective_target_vect_unpack: using cached result" 2
2172 set et_vect_unpack_saved 0
2173 if { ([istarget powerpc*-*-*] && ![istarget powerpc-*paired*])
2174 || [istarget i?86-*-*]
2175 || [istarget x86_64-*-*]
2176 || [istarget spu-*-*] } {
2177 set et_vect_unpack_saved 1
2180 verbose "check_effective_target_vect_unpack: returning $et_vect_unpack_saved" 2
2181 return $et_vect_unpack_saved
2184 # Return 1 if the target plus current options does not guarantee
2185 # that its STACK_BOUNDARY is >= the reguired vector alignment.
2187 # This won't change for different subtargets so cache the result.
2189 proc check_effective_target_unaligned_stack { } {
2190 global et_unaligned_stack_saved
2192 if [info exists et_unaligned_stack_saved] {
2193 verbose "check_effective_target_unaligned_stack: using cached result" 2
2195 set et_unaligned_stack_saved 0
2197 verbose "check_effective_target_unaligned_stack: returning $et_unaligned_stack_saved" 2
2198 return $et_unaligned_stack_saved
2201 # Return 1 if the target plus current options does not support a vector
2202 # alignment mechanism, 0 otherwise.
2204 # This won't change for different subtargets so cache the result.
2206 proc check_effective_target_vect_no_align { } {
2207 global et_vect_no_align_saved
2209 if [info exists et_vect_no_align_saved] {
2210 verbose "check_effective_target_vect_no_align: using cached result" 2
2212 set et_vect_no_align_saved 0
2213 if { [istarget mipsisa64*-*-*]
2214 || [istarget sparc*-*-*]
2215 || [istarget ia64-*-*]
2216 || [check_effective_target_arm32] } {
2217 set et_vect_no_align_saved 1
2220 verbose "check_effective_target_vect_no_align: returning $et_vect_no_align_saved" 2
2221 return $et_vect_no_align_saved
2224 # Return 1 if the target supports a vector misalign access, 0 otherwise.
2226 # This won't change for different subtargets so cache the result.
2228 proc check_effective_target_vect_hw_misalign { } {
2229 global et_vect_hw_misalign_saved
2231 if [info exists et_vect_hw_misalign_saved] {
2232 verbose "check_effective_target_vect_hw_misalign: using cached result" 2
2234 set et_vect_hw_misalign_saved 0
2235 if { ([istarget x86_64-*-*]
2236 || [istarget i?86-*-*]) } {
2237 set et_vect_hw_misalign_saved 1
2240 verbose "check_effective_target_vect_hw_misalign: returning $et_vect_hw_misalign_saved" 2
2241 return $et_vect_hw_misalign_saved
2245 # Return 1 if arrays are aligned to the vector alignment
2246 # boundary, 0 otherwise.
2248 # This won't change for different subtargets so cache the result.
2250 proc check_effective_target_vect_aligned_arrays { } {
2251 global et_vect_aligned_arrays
2253 if [info exists et_vect_aligned_arrays_saved] {
2254 verbose "check_effective_target_vect_aligned_arrays: using cached result" 2
2256 set et_vect_aligned_arrays_saved 0
2257 if { (([istarget x86_64-*-*]
2258 || [istarget i?86-*-*]) && [is-effective-target lp64])
2259 || [istarget spu-*-*] } {
2260 set et_vect_aligned_arrays_saved 1
2263 verbose "check_effective_target_vect_aligned_arrays: returning $et_vect_aligned_arrays_saved" 2
2264 return $et_vect_aligned_arrays_saved
2267 # Return 1 if types of size 32 bit or less are naturally aligned
2268 # (aligned to their type-size), 0 otherwise.
2270 # This won't change for different subtargets so cache the result.
2272 proc check_effective_target_natural_alignment_32 { } {
2273 global et_natural_alignment_32
2275 if [info exists et_natural_alignment_32_saved] {
2276 verbose "check_effective_target_natural_alignment_32: using cached result" 2
2278 # FIXME: 32bit powerpc: guaranteed only if MASK_ALIGN_NATURAL/POWER.
2279 set et_natural_alignment_32_saved 1
2280 if { ([istarget *-*-darwin*] && [is-effective-target lp64]) } {
2281 set et_natural_alignment_32_saved 0
2284 verbose "check_effective_target_natural_alignment_32: returning $et_natural_alignment_32_saved" 2
2285 return $et_natural_alignment_32_saved
2288 # Return 1 if types of size 64 bit or less are naturally aligned (aligned to their
2289 # type-size), 0 otherwise.
2291 # This won't change for different subtargets so cache the result.
2293 proc check_effective_target_natural_alignment_64 { } {
2294 global et_natural_alignment_64
2296 if [info exists et_natural_alignment_64_saved] {
2297 verbose "check_effective_target_natural_alignment_64: using cached result" 2
2299 set et_natural_alignment_64_saved 0
2300 if { ([is-effective-target lp64] && ![istarget *-*-darwin*])
2301 || [istarget spu-*-*] } {
2302 set et_natural_alignment_64_saved 1
2305 verbose "check_effective_target_natural_alignment_64: returning $et_natural_alignment_64_saved" 2
2306 return $et_natural_alignment_64_saved
2309 # Return 1 if vector alignment (for types of size 32 bit or less) is reachable, 0 otherwise.
2311 # This won't change for different subtargets so cache the result.
2313 proc check_effective_target_vector_alignment_reachable { } {
2314 global et_vector_alignment_reachable
2316 if [info exists et_vector_alignment_reachable_saved] {
2317 verbose "check_effective_target_vector_alignment_reachable: using cached result" 2
2319 if { [check_effective_target_vect_aligned_arrays]
2320 || [check_effective_target_natural_alignment_32] } {
2321 set et_vector_alignment_reachable_saved 1
2323 set et_vector_alignment_reachable_saved 0
2326 verbose "check_effective_target_vector_alignment_reachable: returning $et_vector_alignment_reachable_saved" 2
2327 return $et_vector_alignment_reachable_saved
2330 # Return 1 if vector alignment for 64 bit is reachable, 0 otherwise.
2332 # This won't change for different subtargets so cache the result.
2334 proc check_effective_target_vector_alignment_reachable_for_64bit { } {
2335 global et_vector_alignment_reachable_for_64bit
2337 if [info exists et_vector_alignment_reachable_for_64bit_saved] {
2338 verbose "check_effective_target_vector_alignment_reachable_for_64bit: using cached result" 2
2340 if { [check_effective_target_vect_aligned_arrays]
2341 || [check_effective_target_natural_alignment_64] } {
2342 set et_vector_alignment_reachable_for_64bit_saved 1
2344 set et_vector_alignment_reachable_for_64bit_saved 0
2347 verbose "check_effective_target_vector_alignment_reachable_for_64bit: returning $et_vector_alignment_reachable_for_64bit_saved" 2
2348 return $et_vector_alignment_reachable_for_64bit_saved
2351 # Return 1 if the target supports vector conditional operations, 0 otherwise.
2353 proc check_effective_target_vect_condition { } {
2354 global et_vect_cond_saved
2356 if [info exists et_vect_cond_saved] {
2357 verbose "check_effective_target_vect_cond: using cached result" 2
2359 set et_vect_cond_saved 0
2360 if { [istarget powerpc*-*-*]
2361 || [istarget ia64-*-*]
2362 || [istarget i?86-*-*]
2363 || [istarget spu-*-*]
2364 || [istarget x86_64-*-*] } {
2365 set et_vect_cond_saved 1
2369 verbose "check_effective_target_vect_cond: returning $et_vect_cond_saved" 2
2370 return $et_vect_cond_saved
2373 # Return 1 if the target supports vector char multiplication, 0 otherwise.
2375 proc check_effective_target_vect_char_mult { } {
2376 global et_vect_char_mult_saved
2378 if [info exists et_vect_char_mult_saved] {
2379 verbose "check_effective_target_vect_char_mult: using cached result" 2
2381 set et_vect_char_mult_saved 0
2382 if { [istarget ia64-*-*]
2383 || [istarget i?86-*-*]
2384 || [istarget x86_64-*-*] } {
2385 set et_vect_char_mult_saved 1
2389 verbose "check_effective_target_vect_char_mult: returning $et_vect_char_mult_saved" 2
2390 return $et_vect_char_mult_saved
2393 # Return 1 if the target supports vector short multiplication, 0 otherwise.
2395 proc check_effective_target_vect_short_mult { } {
2396 global et_vect_short_mult_saved
2398 if [info exists et_vect_short_mult_saved] {
2399 verbose "check_effective_target_vect_short_mult: using cached result" 2
2401 set et_vect_short_mult_saved 0
2402 if { [istarget ia64-*-*]
2403 || [istarget spu-*-*]
2404 || [istarget i?86-*-*]
2405 || [istarget x86_64-*-*]
2406 || [istarget powerpc*-*-*]
2407 || [check_effective_target_arm32] } {
2408 set et_vect_short_mult_saved 1
2412 verbose "check_effective_target_vect_short_mult: returning $et_vect_short_mult_saved" 2
2413 return $et_vect_short_mult_saved
2416 # Return 1 if the target supports vector int multiplication, 0 otherwise.
2418 proc check_effective_target_vect_int_mult { } {
2419 global et_vect_int_mult_saved
2421 if [info exists et_vect_int_mult_saved] {
2422 verbose "check_effective_target_vect_int_mult: using cached result" 2
2424 set et_vect_int_mult_saved 0
2425 if { ([istarget powerpc*-*-*] && ![istarget powerpc-*-linux*paired*])
2426 || [istarget spu-*-*]
2427 || [istarget i?86-*-*]
2428 || [istarget x86_64-*-*]
2429 || [check_effective_target_arm32] } {
2430 set et_vect_int_mult_saved 1
2434 verbose "check_effective_target_vect_int_mult: returning $et_vect_int_mult_saved" 2
2435 return $et_vect_int_mult_saved
2438 # Return 1 if the target supports vector even/odd elements extraction, 0 otherwise.
2440 proc check_effective_target_vect_extract_even_odd { } {
2441 global et_vect_extract_even_odd_saved
2443 if [info exists et_vect_extract_even_odd_saved] {
2444 verbose "check_effective_target_vect_extract_even_odd: using cached result" 2
2446 set et_vect_extract_even_odd_saved 0
2447 if { [istarget powerpc*-*-*]
2448 || [istarget spu-*-*] } {
2449 set et_vect_extract_even_odd_saved 1
2453 verbose "check_effective_target_vect_extract_even_odd: returning $et_vect_extract_even_odd_saved" 2
2454 return $et_vect_extract_even_odd_saved
2457 # Return 1 if the target supports vector even/odd elements extraction of
2458 # vectors with SImode elements or larger, 0 otherwise.
2460 proc check_effective_target_vect_extract_even_odd_wide { } {
2461 global et_vect_extract_even_odd_wide_saved
2463 if [info exists et_vect_extract_even_odd_wide_saved] {
2464 verbose "check_effective_target_vect_extract_even_odd_wide: using cached result" 2
2466 set et_vect_extract_even_odd_wide_saved 0
2467 if { [istarget powerpc*-*-*]
2468 || [istarget i?86-*-*]
2469 || [istarget x86_64-*-*]
2470 || [istarget spu-*-*] } {
2471 set et_vect_extract_even_odd_wide_saved 1
2475 verbose "check_effective_target_vect_extract_even_wide_odd: returning $et_vect_extract_even_odd_wide_saved" 2
2476 return $et_vect_extract_even_odd_wide_saved
2479 # Return 1 if the target supports vector interleaving, 0 otherwise.
2481 proc check_effective_target_vect_interleave { } {
2482 global et_vect_interleave_saved
2484 if [info exists et_vect_interleave_saved] {
2485 verbose "check_effective_target_vect_interleave: using cached result" 2
2487 set et_vect_interleave_saved 0
2488 if { [istarget powerpc*-*-*]
2489 || [istarget i?86-*-*]
2490 || [istarget x86_64-*-*]
2491 || [istarget spu-*-*] } {
2492 set et_vect_interleave_saved 1
2496 verbose "check_effective_target_vect_interleave: returning $et_vect_interleave_saved" 2
2497 return $et_vect_interleave_saved
2500 # Return 1 if the target supports vector interleaving and extract even/odd, 0 otherwise.
2501 proc check_effective_target_vect_strided { } {
2502 global et_vect_strided_saved
2504 if [info exists et_vect_strided_saved] {
2505 verbose "check_effective_target_vect_strided: using cached result" 2
2507 set et_vect_strided_saved 0
2508 if { [check_effective_target_vect_interleave]
2509 && [check_effective_target_vect_extract_even_odd] } {
2510 set et_vect_strided_saved 1
2514 verbose "check_effective_target_vect_strided: returning $et_vect_strided_saved" 2
2515 return $et_vect_strided_saved
2518 # Return 1 if the target supports vector interleaving and extract even/odd
2519 # for wide element types, 0 otherwise.
2520 proc check_effective_target_vect_strided_wide { } {
2521 global et_vect_strided_wide_saved
2523 if [info exists et_vect_strided_wide_saved] {
2524 verbose "check_effective_target_vect_strided_wide: using cached result" 2
2526 set et_vect_strided_wide_saved 0
2527 if { [check_effective_target_vect_interleave]
2528 && [check_effective_target_vect_extract_even_odd_wide] } {
2529 set et_vect_strided_wide_saved 1
2533 verbose "check_effective_target_vect_strided_wide: returning $et_vect_strided_wide_saved" 2
2534 return $et_vect_strided_wide_saved
2537 # Return 1 if the target supports section-anchors
2539 proc check_effective_target_section_anchors { } {
2540 global et_section_anchors_saved
2542 if [info exists et_section_anchors_saved] {
2543 verbose "check_effective_target_section_anchors: using cached result" 2
2545 set et_section_anchors_saved 0
2546 if { [istarget powerpc*-*-*] } {
2547 set et_section_anchors_saved 1
2551 verbose "check_effective_target_section_anchors: returning $et_section_anchors_saved" 2
2552 return $et_section_anchors_saved
2555 # Return 1 if the target supports atomic operations on "int" and "long".
2557 proc check_effective_target_sync_int_long { } {
2558 global et_sync_int_long_saved
2560 if [info exists et_sync_int_long_saved] {
2561 verbose "check_effective_target_sync_int_long: using cached result" 2
2563 set et_sync_int_long_saved 0
2564 # This is intentionally powerpc but not rs6000, rs6000 doesn't have the
2565 # load-reserved/store-conditional instructions.
2566 if { [istarget ia64-*-*]
2567 || [istarget i?86-*-*]
2568 || [istarget x86_64-*-*]
2569 || [istarget alpha*-*-*]
2570 || [istarget s390*-*-*]
2571 || [istarget powerpc*-*-*]
2572 || [istarget sparc64-*-*]
2573 || [istarget sparcv9-*-*]
2574 || [istarget mips*-*-*] } {
2575 set et_sync_int_long_saved 1
2579 verbose "check_effective_target_sync_int_long: returning $et_sync_int_long_saved" 2
2580 return $et_sync_int_long_saved
2583 # Return 1 if the target supports atomic operations on "char" and "short".
2585 proc check_effective_target_sync_char_short { } {
2586 global et_sync_char_short_saved
2588 if [info exists et_sync_char_short_saved] {
2589 verbose "check_effective_target_sync_char_short: using cached result" 2
2591 set et_sync_char_short_saved 0
2592 # This is intentionally powerpc but not rs6000, rs6000 doesn't have the
2593 # load-reserved/store-conditional instructions.
2594 if { [istarget ia64-*-*]
2595 || [istarget i?86-*-*]
2596 || [istarget x86_64-*-*]
2597 || [istarget alpha*-*-*]
2598 || [istarget s390*-*-*]
2599 || [istarget powerpc*-*-*]
2600 || [istarget sparc64-*-*]
2601 || [istarget sparcv9-*-*]
2602 || [istarget mips*-*-*] } {
2603 set et_sync_char_short_saved 1
2607 verbose "check_effective_target_sync_char_short: returning $et_sync_char_short_saved" 2
2608 return $et_sync_char_short_saved
2611 # Return 1 if the target uses a ColdFire FPU.
2613 proc check_effective_target_coldfire_fpu { } {
2614 return [check_no_compiler_messages coldfire_fpu assembly {
2621 # Return true if this is a uClibc target.
2623 proc check_effective_target_uclibc {} {
2624 return [check_no_compiler_messages uclibc object {
2625 #include <features.h>
2626 #if !defined (__UCLIBC__)
2632 # Return true if this is a uclibc target and if the uclibc feature
2633 # described by __$feature__ is not present.
2635 proc check_missing_uclibc_feature {feature} {
2636 return [check_no_compiler_messages $feature object "
2637 #include <features.h>
2638 #if !defined (__UCLIBC) || defined (__${feature}__)
2644 # Return true if this is a Newlib target.
2646 proc check_effective_target_newlib {} {
2647 return [check_no_compiler_messages newlib object {
2653 # (a) an error of a few ULP is expected in string to floating-point
2654 # conversion functions; and
2655 # (b) overflow is not always detected correctly by those functions.
2657 proc check_effective_target_lax_strtofp {} {
2658 # By default, assume that all uClibc targets suffer from this.
2659 return [check_effective_target_uclibc]
2662 # Return 1 if this is a target for which wcsftime is a dummy
2663 # function that always returns 0.
2665 proc check_effective_target_dummy_wcsftime {} {
2666 # By default, assume that all uClibc targets suffer from this.
2667 return [check_effective_target_uclibc]
2670 # Return 1 if constructors with initialization priority arguments are
2671 # supposed on this target.
2673 proc check_effective_target_init_priority {} {
2674 return [check_no_compiler_messages init_priority assembly "
2675 void f() __attribute__((constructor (1000)));
2680 # Return 1 if the target matches the effective target 'arg', 0 otherwise.
2681 # This can be used with any check_* proc that takes no argument and
2682 # returns only 1 or 0. It could be used with check_* procs that take
2683 # arguments with keywords that pass particular arguments.
2685 proc is-effective-target { arg } {
2687 if { [info procs check_effective_target_${arg}] != [list] } {
2688 set selected [check_effective_target_${arg}]
2691 "vmx_hw" { set selected [check_vmx_hw_available] }
2692 "named_sections" { set selected [check_named_sections_available] }
2693 "gc_sections" { set selected [check_gc_sections_available] }
2694 "cxa_atexit" { set selected [check_cxa_atexit_available] }
2695 default { error "unknown effective target keyword `$arg'" }
2698 verbose "is-effective-target: $arg $selected" 2
2702 # Return 1 if the argument is an effective-target keyword, 0 otherwise.
2704 proc is-effective-target-keyword { arg } {
2705 if { [info procs check_effective_target_${arg}] != [list] } {
2708 # These have different names for their check_* procs.
2710 "vmx_hw" { return 1 }
2711 "named_sections" { return 1 }
2712 "gc_sections" { return 1 }
2713 "cxa_atexit" { return 1 }
2714 default { return 0 }
2719 # Return 1 if target default to short enums
2721 proc check_effective_target_short_enums { } {
2722 return [check_no_compiler_messages short_enums assembly {
2724 int s[sizeof (enum foo) == 1 ? 1 : -1];
2728 # Return 1 if target supports merging string constants at link time.
2730 proc check_effective_target_string_merging { } {
2731 return [check_no_messages_and_pattern string_merging \
2732 "rodata\\.str" assembly {
2733 const char *var = "String";
2737 # Return 1 if target has the basic signed and unsigned types in
2738 # <stdint.h>, 0 otherwise. This will be obsolete when GCC ensures a
2739 # working <stdint.h> for all targets.
2741 proc check_effective_target_stdint_types { } {
2742 return [check_no_compiler_messages stdint_types assembly {
2744 int8_t a; int16_t b; int32_t c; int64_t d;
2745 uint8_t e; uint16_t f; uint32_t g; uint64_t h;
2749 # Return 1 if target has the basic signed and unsigned types in
2750 # <inttypes.h>, 0 otherwise. This is for tests that GCC's notions of
2751 # these types agree with those in the header, as some systems have
2752 # only <inttypes.h>.
2754 proc check_effective_target_inttypes_types { } {
2755 return [check_no_compiler_messages inttypes_types assembly {
2756 #include <inttypes.h>
2757 int8_t a; int16_t b; int32_t c; int64_t d;
2758 uint8_t e; uint16_t f; uint32_t g; uint64_t h;
2762 # Return 1 if programs are intended to be run on a simulator
2763 # (i.e. slowly) rather than hardware (i.e. fast).
2765 proc check_effective_target_simulator { } {
2767 # All "src/sim" simulators set this one.
2768 if [board_info target exists is_simulator] {
2769 return [board_info target is_simulator]
2772 # The "sid" simulators don't set that one, but at least they set
2774 if [board_info target exists slow_simulator] {
2775 return [board_info target slow_simulator]
2781 # Return 1 if the target is a VxWorks kernel.
2783 proc check_effective_target_vxworks_kernel { } {
2784 return [check_no_compiler_messages vxworks_kernel assembly {
2785 #if !defined __vxworks || defined __RTP__
2791 # Return 1 if the target is a VxWorks RTP.
2793 proc check_effective_target_vxworks_rtp { } {
2794 return [check_no_compiler_messages vxworks_rtp assembly {
2795 #if !defined __vxworks || !defined __RTP__
2801 # Return 1 if the target is expected to provide wide character support.
2803 proc check_effective_target_wchar { } {
2804 if {[check_missing_uclibc_feature UCLIBC_HAS_WCHAR]} {
2807 return [check_no_compiler_messages wchar assembly {
2812 # Return 1 if the target has <pthread.h>.
2814 proc check_effective_target_pthread_h { } {
2815 return [check_no_compiler_messages pthread_h assembly {
2816 #include <pthread.h>
2820 # Return 1 if the target can truncate a file from a file-descriptor,
2821 # as used by libgfortran/io/unix.c:fd_truncate; i.e. ftruncate or
2822 # chsize. We test for a trivially functional truncation; no stubs.
2823 # As libgfortran uses _FILE_OFFSET_BITS 64, we do too; it'll cause a
2824 # different function to be used.
2826 proc check_effective_target_fd_truncate { } {
2828 #define _FILE_OFFSET_BITS 64
2834 FILE *f = fopen ("tst.tmp", "wb");
2836 const char t[] = "test writing more than ten characters";
2839 write (fd, t, sizeof (t) - 1);
2841 if (ftruncate (fd, 10) != 0)
2844 f = fopen ("tst.tmp", "rb");
2845 if (fread (s, 1, sizeof (s), f) != 10 || strncmp (s, t, 10) != 0)
2851 if { [check_runtime ftruncate $prog] } {
2855 regsub "ftruncate" $prog "chsize" prog
2856 return [check_runtime chsize $prog]
2859 # Add to FLAGS all the target-specific flags needed to access the c99 runtime.
2861 proc add_options_for_c99_runtime { flags } {
2862 if { [istarget *-*-solaris2*] } {
2863 return "$flags -std=c99"
2865 if { [istarget powerpc-*-darwin*] } {
2866 return "$flags -mmacosx-version-min=10.3"
2871 # Return 1 if the target provides a full C99 runtime.
2873 proc check_effective_target_c99_runtime { } {
2874 return [check_cached_effective_target c99_runtime {
2877 set file [open "$srcdir/gcc.dg/builtins-config.h"]
2878 set contents [read $file]
2881 #ifndef HAVE_C99_RUNTIME
2885 check_no_compiler_messages_nocache c99_runtime assembly \
2886 $contents [add_options_for_c99_runtime ""]
2890 # Return 1 if target wchar_t is at least 4 bytes.
2892 proc check_effective_target_4byte_wchar_t { } {
2893 return [check_no_compiler_messages 4byte_wchar_t object {
2894 int dummy[sizeof (__WCHAR_TYPE__) >= 4 ? 1 : -1];
2898 # Return 1 if the target supports automatic stack alignment.
2900 proc check_effective_target_automatic_stack_alignment { } {
2901 if { [istarget i?86*-*-*]
2902 || [istarget x86_64-*-*] } then {
2909 # Return 1 if avx instructions can be compiled.
2911 proc check_effective_target_avx { } {
2912 return [check_no_compiler_messages avx object {
2913 void _mm256_zeroall (void)
2915 __builtin_ia32_vzeroall ();
2920 # Return 1 if C wchar_t type is compatible with char16_t.
2922 proc check_effective_target_wchar_t_char16_t_compatible { } {
2923 return [check_no_compiler_messages wchar_t_char16_t object {
2925 __CHAR16_TYPE__ *p16 = &wc;
2926 char t[(((__CHAR16_TYPE__) -1) < 0 == ((__WCHAR_TYPE__) -1) < 0) ? 1 : -1];
2930 # Return 1 if C wchar_t type is compatible with char32_t.
2932 proc check_effective_target_wchar_t_char32_t_compatible { } {
2933 return [check_no_compiler_messages wchar_t_char32_t object {
2935 __CHAR32_TYPE__ *p32 = &wc;
2936 char t[(((__CHAR32_TYPE__) -1) < 0 == ((__WCHAR_TYPE__) -1) < 0) ? 1 : -1];
2940 # Return 1 if pow10 function exists.
2942 proc check_effective_target_pow10 { } {
2943 return [check_runtime pow10 {
2953 # Return 1 if current options generate DFP instructions, 0 otherwise.
2955 proc check_effective_target_hard_dfp {} {
2956 return [check_no_messages_and_pattern hard_dfp "!adddd3" assembly {
2958 void foo (void) { z = x + y; }
2962 # Return 1 if string.h and wchar.h headers provide C++ requires overloads
2963 # for strchr etc. functions.
2965 proc check_effective_target_correct_iso_cpp_string_wchar_protos { } {
2966 return [check_no_compiler_messages correct_iso_cpp_string_wchar_protos assembly {
2969 #if !defined(__cplusplus) \
2970 || !defined(__CORRECT_ISO_CPP_STRING_H_PROTO) \
2971 || !defined(__CORRECT_ISO_CPP_WCHAR_H_PROTO)
2972 ISO C++ correct string.h and wchar.h protos not supported.
2979 # Return 1 if the MPC library is integrated with GCC, 0 otherwise.
2981 proc check_effective_target_mpc { } {
2982 return [check_no_compiler_messages mpc executable {
2983 extern void link_error(void);
2986 if (__builtin_csin(0) != 0)