-# Copyright (C) 1999, 2001, 2003, 2004 Free Software Foundation, Inc.
+# Copyright (C) 1999, 2001, 2003, 2004, 2005, 2006, 2007
+# Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
# Please email any bugs, comments, and/or additions to this file to:
# gcc-patches@gcc.gnu.org
# This file defines procs for determining features supported by the target.
-# Try to compile some code and return the messages printed by the compiler.
+# Try to compile some code and return the messages printed by the compiler,
+# and optionally the contents for assembly files. Either a string or
+# a list of two strings are returned, depending on WANT_OUTPUT.
#
# BASENAME is a basename to use for temporary files.
+# WANT_OUTPUT is a flag which is 0 to request returning just the
+# compiler messages, or 1 to return the messages and the contents
+# of the assembly file. TYPE should be "assembly" if WANT_OUTPUT
+# is set.
# TYPE is the type of compilation to perform (see target_compile).
# CONTENTS gives the contents of the input file.
-proc get_compiler_messages {basename type contents} {
+# The rest is optional:
+# OPTIONS: additional compiler options to use.
+proc get_compiler_messages {basename want_output type contents args} {
global tool
+ if { [llength $args] > 0 } {
+ set options [list "additional_flags=[lindex $args 0]"]
+ } else {
+ set options ""
+ }
+
set src ${basename}[pid].c
switch $type {
assembly { set output ${basename}[pid].s }
set f [open $src "w"]
puts $f $contents
close $f
- set lines [${tool}_target_compile $src $output $type ""]
+ set lines [${tool}_target_compile $src $output $type "$options"]
file delete $src
+
+ if { $want_output } {
+ if { $type != "assembly" } {
+ error "WANT_OUTPUT can only be used with assembly output"
+ } elseif { ![string match "" $lines] } {
+ # An error occurred.
+ set result [list $lines ""]
+ } else {
+ set text ""
+ set chan [open "$output"]
+ while {[gets $chan line] >= 0} {
+ append text "$line\n"
+ }
+ close $chan
+ set result [list $lines $text]
+ }
+ } else {
+ set result $lines
+ }
+
remote_file build delete $output
+ return $result
+}
+
+proc current_target_name { } {
+ global target_info
+ if [info exists target_info(target,name)] {
+ set answer $target_info(target,name)
+ } else {
+ set answer ""
+ }
+ return $answer
+}
- return $lines
+# Implement an effective-target check for property PROP by invoking
+# the compiler and seeing if it prints any messages. Assume that the
+# property holds if the compiler doesn't print anything. The other
+# arguments are as for get_compiler_messages, starting with TYPE.
+proc check_no_compiler_messages {prop args} {
+ global et_cache
+
+ set target [current_target_name]
+ if {![info exists et_cache($prop,target)]
+ || $et_cache($prop,target) != $target} {
+ verbose "check_no_compiler_messages $prop: compiling source for $target" 2
+ set et_cache($prop,target) $target
+ set et_cache($prop,value) \
+ [string match "" [eval get_compiler_messages $prop 0 $args]]
+ }
+ set value $et_cache($prop,value)
+ verbose "check_no_compiler_messages $prop: returning $value for $target" 2
+ return $value
+}
+
+# Similar to check_no_compiler_messages, but also verify that the regular
+# expression PATTERN matches the compiler's output.
+proc check_no_messages_and_pattern {prop pattern args} {
+ global et_cache
+
+ set target [current_target_name]
+ if {![info exists et_cache($prop,target)]
+ || $et_cache($prop,target) != $target} {
+ verbose "check_no_messages_and_pattern $prop: compiling source for $target" 2
+ set et_cache($prop,target) $target
+ set results [eval get_compiler_messages $prop 1 $args]
+ set et_cache($prop,value) \
+ [expr [string match "" [lindex $results 0]] \
+ && [regexp $pattern [lindex $results 1]]]
+ }
+ set value $et_cache($prop,value)
+ verbose "check_no_messages_and_pattern $prop: returning $value for $target" 2
+ return $value
}
###############################
return 1
}
+ # HP-UX 10.X doesn't support it
+
+ if { [istarget "hppa*-*-hpux10*"] } {
+ return 0
+ }
+
# ELF and ECOFF support it. a.out does with gas/gld but may also with
# other linkers, so we should try it
ecoff { return 1 }
a.out { return 1 }
mach-o { return 1 }
+ som { return 1 }
unknown { return -1 }
default { return 0 }
}
}
###############################
-# proc check_visibility_available { }
+# proc check_visibility_available { what_kind }
###############################
# The visibility attribute is only support in some object formats
# This proc returns 1 if it is supported, 0 if not.
+# The argument is the kind of visibility, default/protected/hidden/internal.
-proc check_visibility_available { } {
- global visibility_available_saved
+proc check_visibility_available { what_kind } {
global tool
global target_triplet
# On NetWare, support makes no sense.
- if { [string match "*-*-netware*" $target_triplet] } {
+ if { [istarget *-*-netware*] } {
return 0
}
- if {![info exists visibility_available_saved] } {
- set lines [get_compiler_messages visibility object {
- void f() __attribute__((visibility("hidden")));
- void f() {}
- }]
- if [string match "" $lines] then {
- set visibility_available_saved 1
- } else {
- set visibility_available_saved 0
- }
- }
- return $visibility_available_saved
+ if [string match "" $what_kind] { set what_kind "hidden" }
+
+ return [check_no_compiler_messages visibility_available_$what_kind object "
+ void f() __attribute__((visibility(\"$what_kind\")));
+ void f() {}
+ "]
}
###############################
return 0
}
+ # At present, there is no profiling support on NetWare.
+ if { [istarget *-*-netware*] } {
+ return 0
+ }
+
# Now examine the cache variable.
if {![info exists profiling_available_saved]} {
# Some targets don't have any implementation of __bb_init_func or are
|| [istarget xscale*-*-elf]
|| [istarget cris-*-*]
|| [istarget h8300-*-*]
+ || [istarget m32c-*-elf]
+ || [istarget m68k-*-elf]
|| [istarget mips*-*-elf]
+ || [istarget xtensa-*-elf]
|| [istarget *-*-windiss] } {
set profiling_available_saved 0
} else {
return $profiling_available_saved
}
-# Return true if iconv is supported on the target. In particular IBM-1047.
+# Return 1 if target has packed layout of structure members by
+# default, 0 otherwise. Note that this is slightly different than
+# whether the target has "natural alignment": both attributes may be
+# false.
+
+proc check_effective_target_default_packed { } {
+ return [check_no_compiler_messages default_packed assembly {
+ struct x { char a; long b; } c;
+ int s[sizeof (c) == sizeof (char) + sizeof (long) ? 1 : -1];
+ }]
+}
+
+# Return 1 if target has PCC_BITFIELD_TYPE_MATTERS defined. See
+# documentation, where the test also comes from.
+
+proc check_effective_target_pcc_bitfield_type_matters { } {
+ # PCC_BITFIELD_TYPE_MATTERS isn't just about unnamed or empty
+ # bitfields, but let's stick to the example code from the docs.
+ return [check_no_compiler_messages pcc_bitfield_type_matters assembly {
+ struct foo1 { char x; char :0; char y; };
+ struct foo2 { char x; int :0; char y; };
+ int s[sizeof (struct foo1) != sizeof (struct foo2) ? 1 : -1];
+ }]
+}
+
+# Return 1 if *native* thread local storage (TLS) is supported, 0 otherwise.
+#
+# This won't change for different subtargets so cache the result.
+
+proc check_effective_target_tls {} {
+ global et_tls_saved
+ global tool
+
+ if [info exists et_tls_saved] {
+ verbose "check_effective_target_tls: using cached result" 2
+ } else {
+ set et_tls_saved 1
+
+ set src tls[pid].c
+ set asm tls[pid].S
+ verbose "check_effective_target_tls: compiling testfile $src" 2
+ set f [open $src "w"]
+ # Compile a small test program.
+ puts $f "__thread int i;\n"
+ close $f
+
+ # Test for thread-local data supported by the platform.
+ set comp_output [${tool}_target_compile $src $asm assembly ""]
+ file delete $src
+ if { [string match "*not supported*" $comp_output] } {
+ set et_tls_saved 0
+ } else {
+ set fd [open $asm r]
+ set text [read $fd]
+ close $fd
+ if { [string match "*emutls*" $text]} {
+ set et_tls_saved 0
+ } else {
+ set et_tls_saved 1
+ }
+ }
+ remove-build-file $asm
+ }
+ verbose "check_effective_target_tls: returning $et_tls_saved" 2
+ return $et_tls_saved
+}
+
+# Return 1 if TLS executables can run correctly, 0 otherwise.
+#
+# This won't change for different subtargets so cache the result.
+
+proc check_effective_target_tls_runtime {} {
+ global et_tls_runtime_saved
+ global tool
+
+ if [info exists et_tls_runtime_saved] {
+ verbose "check_effective_target_tls_runtime: using cached result" 2
+ } else {
+ set et_tls_runtime_saved 0
+
+ set src tls_runtime[pid].c
+ set exe tls_runtime[pid].x
+ verbose "check_effective_target_tls_runtime: compiling testfile $src" 2
+ set f [open $src "w"]
+ # Compile a small test program.
+ puts $f "__thread int thr = 0;\n"
+ puts $f "int main(void)\n {\n return thr;\n}"
+ close $f
+
+ set comp_output \
+ [${tool}_target_compile $src $exe executable ""]
+ file delete $src
+
+ if [string match "" $comp_output] then {
+ # No error messages, everything is OK.
+
+ set result [remote_load target "./$exe" "" ""]
+ set status [lindex $result 0]
+ remote_file build delete $exe
+
+ verbose "check_effective_target_tls_runtime status is <$status>" 2
+
+ if { $status == "pass" } {
+ set et_tls_runtime_saved 1
+ }
+
+ verbose "check_effective_target_tls_runtime: returning $et_tls_runtime_saved" 2
+ }
+ }
+
+ return $et_tls_runtime_saved
+}
+
+# Return 1 if compilation with -fopenmp is error-free for trivial
+# code, 0 otherwise.
+
+proc check_effective_target_fopenmp {} {
+ return [check_no_compiler_messages fopenmp object {
+ void foo (void) { }
+ } "-fopenmp"]
+}
+
+# Return 1 if compilation with -freorder-blocks-and-partition is error-free
+# for trivial code, 0 otherwise.
+
+proc check_effective_target_freorder {} {
+ return [check_no_compiler_messages freorder object {
+ void foo (void) { }
+ } "-freorder-blocks-and-partition"]
+}
+
+# Return 1 if -fpic and -fPIC are supported, as in no warnings or errors
+# emitted, 0 otherwise. Whether a shared library can actually be built is
+# out of scope for this test.
+
+proc check_effective_target_fpic { } {
+ # Note that M68K has a multilib that supports -fpic but not
+ # -fPIC, so we need to check both. We test with a program that
+ # requires GOT references.
+ foreach arg {fpic fPIC} {
+ if [check_no_compiler_messages $arg object {
+ extern int foo (void); extern int bar;
+ int baz (void) { return foo () + bar; }
+ } "-$arg"] {
+ return 1
+ }
+ }
+ return 0
+}
+
+# Return true if the target supports -mpaired-single (as used on MIPS).
+
+proc check_effective_target_mpaired_single { } {
+ return [check_no_compiler_messages mpaired_single object {
+ void foo (void) { }
+ } "-mpaired-single"]
+}
+
+# Return 1 if the target does not use a status wrapper.
+
+proc check_effective_target_unwrapped { } {
+ if { [target_info needs_status_wrapper] != "" \
+ && [target_info needs_status_wrapper] != "0" } {
+ return 0
+ }
+ return 1
+}
+
+# Return true if iconv is supported on the target. In particular IBM1047.
proc check_iconv_available { test_what } {
global tool
puts $f "return 0;\n}"
close $f
+ # If the tool configuration file has not set libiconv, try "-liconv"
+ if { ![info exists libiconv] } {
+ set libiconv "-liconv"
+ }
set lines [${tool}_target_compile $src $exe executable "libs=$libiconv" ]
file delete $src
# No error messages, everything is OK.
set result [${tool}_load "./$exe" "" ""]
- set status [lindex $result 0];
+ set status [lindex $result 0]
remote_file build delete $exe
verbose "check_iconv_available status is <$status>" 2
}
# Return true if named sections are supported on this target.
-# This proc does not cache results, because the answer may vary
-# when cycling over subtarget options (e.g. irix o32/n32/n64) in
-# the same test run.
+
proc check_named_sections_available { } {
- verbose "check_named_sections_available: compiling source" 2
- set answer [string match "" [get_compiler_messages named object {
+ return [check_no_compiler_messages named_sections assembly {
int __attribute__ ((section("whatever"))) foo;
- }]]
- verbose "check_named_sections_available: returning $answer" 2
- return $answer
+ }]
+}
+
+# Return 1 if the target supports Fortran real kinds larger than real(8),
+# 0 otherwise.
+#
+# When the target name changes, replace the cached result.
+
+proc check_effective_target_fortran_large_real { } {
+ global et_fortran_large_real_saved
+ global et_fortran_large_real_target_name
+ global tool
+
+ if { ![info exists et_fortran_large_real_target_name] } {
+ set et_fortran_large_real_target_name ""
+ }
+
+ # If the target has changed since we set the cached value, clear it.
+ set current_target [current_target_name]
+ if { $current_target != $et_fortran_large_real_target_name } {
+ verbose "check_effective_target_fortran_large_real: `$et_fortran_large_real_target_name' `$current_target'" 2
+ set et_fortran_large_real_target_name $current_target
+ if [info exists et_fortran_large_real_saved] {
+ verbose "check_effective_target_fortran_large_real: removing cached result" 2
+ unset et_fortran_large_real_saved
+ }
+ }
+
+ if [info exists et_fortran_large_real_saved] {
+ verbose "check_effective_target_fortran_large_real returning saved $et_fortran_large_real_saved" 2
+ } else {
+ set et_fortran_large_real_saved 0
+
+ # Set up, compile, and execute a test program using large real
+ # kinds. Include the current process ID in the file names to
+ # prevent conflicts with invocations for multiple testsuites.
+ set src real[pid].f90
+ set exe real[pid].x
+
+ set f [open $src "w"]
+ puts $f "integer,parameter :: k = &"
+ puts $f " selected_real_kind (precision (0.0_8) + 1)"
+ puts $f "real(kind=k) :: x"
+ puts $f "x = cos (x);"
+ puts $f "end"
+ close $f
+
+ verbose "check_effective_target_fortran_large_real compiling testfile $src" 2
+ set lines [${tool}_target_compile $src $exe executable ""]
+ file delete $src
+
+ if [string match "" $lines] then {
+ # No error message, compilation succeeded.
+ set et_fortran_large_real_saved 1
+ }
+ }
+
+ return $et_fortran_large_real_saved
+}
+
+# Return 1 if the target supports Fortran integer kinds larger than
+# integer(8), 0 otherwise.
+#
+# When the target name changes, replace the cached result.
+
+proc check_effective_target_fortran_large_int { } {
+ global et_fortran_large_int_saved
+ global et_fortran_large_int_target_name
+ global tool
+
+ if { ![info exists et_fortran_large_int_target_name] } {
+ set et_fortran_large_int_target_name ""
+ }
+
+ # If the target has changed since we set the cached value, clear it.
+ set current_target [current_target_name]
+ if { $current_target != $et_fortran_large_int_target_name } {
+ verbose "check_effective_target_fortran_large_int: `$et_fortran_large_int_target_name' `$current_target'" 2
+ set et_fortran_large_int_target_name $current_target
+ if [info exists et_fortran_large_int_saved] {
+ verbose "check_effective_target_fortran_large_int: removing cached result" 2
+ unset et_fortran_large_int_saved
+ }
+ }
+
+ if [info exists et_fortran_large_int_saved] {
+ verbose "check_effective_target_fortran_large_int returning saved $et_fortran_large_int_saved" 2
+ } else {
+ set et_fortran_large_int_saved 0
+
+ # Set up, compile, and execute a test program using large integer
+ # kinds. Include the current process ID in the file names to
+ # prevent conflicts with invocations for multiple testsuites.
+ set src int[pid].f90
+ set exe int[pid].x
+
+ set f [open $src "w"]
+ puts $f "integer,parameter :: k = &"
+ puts $f " selected_int_kind (range (0_8) + 1)"
+ puts $f "integer(kind=k) :: i"
+ puts $f "end"
+ close $f
+
+ verbose "check_effective_target_fortran_large_int compiling testfile $src" 2
+ set lines [${tool}_target_compile $src $exe executable ""]
+ file delete $src
+
+ if [string match "" $lines] then {
+ # No error message, compilation succeeded.
+ set et_fortran_large_int_saved 1
+ }
+ }
+
+ return $et_fortran_large_int_saved
+}
+
+# Return 1 if we can statically link libgfortran, 0 otherwise.
+#
+# When the target name changes, replace the cached result.
+
+proc check_effective_target_static_libgfortran { } {
+ global et_static_libgfortran
+ global et_static_libgfortran_target_name
+ global tool
+
+ if { ![info exists et_static_libgfortran_target_name] } {
+ set et_static_libgfortran_target_name ""
+ }
+
+ # If the target has changed since we set the cached value, clear it.
+ set current_target [current_target_name]
+ if { $current_target != $et_static_libgfortran_target_name } {
+ verbose "check_effective_target_static_libgfortran: `$et_static_libgfortran_target_name' `$current_target'" 2
+ set et_static_libgfortran_target_name $current_target
+ if [info exists et_static_libgfortran_saved] {
+ verbose "check_effective_target_static_libgfortran: removing cached result" 2
+ unset et_static_libgfortran_saved
+ }
+ }
+
+ if [info exists et_static_libgfortran_saved] {
+ verbose "check_effective_target_static_libgfortran returning saved $et_static_libgfortran_saved" 2
+ } else {
+ set et_static_libgfortran_saved 0
+
+ # Set up, compile, and execute a test program using static linking.
+ # Include the current process ID in the file names to prevent
+ # conflicts with invocations for multiple testsuites.
+ set opts "additional_flags=-static"
+ set src static[pid].f
+ set exe static[pid].x
+
+ set f [open $src "w"]
+ puts $f " print *, 'test'"
+ puts $f " end"
+ close $f
+
+ verbose "check_effective_target_static_libgfortran compiling testfile $src" 2
+ set lines [${tool}_target_compile $src $exe executable "$opts"]
+ file delete $src
+
+ if [string match "" $lines] then {
+ # No error message, compilation succeeded.
+ set et_static_libgfortran_saved 1
+ }
+ }
+
+ return $et_static_libgfortran_saved
}
# Return 1 if the target supports executing AltiVec instructions, 0
puts $f " return 0; }"
close $f
+ # Most targets don't require special flags for this test case, but
+ # Darwin does.
+ if [istarget *-*-darwin*] {
+ set opts "additional_flags=-maltivec"
+ } else {
+ set opts ""
+ }
+
verbose "check_vmx_hw_available compiling testfile $src" 2
- set lines [${tool}_target_compile $src $exe executable ""]
+ set lines [${tool}_target_compile $src $exe executable "$opts"]
file delete $src
if [string match "" $lines] then {
return $vmx_hw_available_saved
}
+# GCC 3.4.0 for powerpc64-*-linux* included an ABI fix for passing
+# complex float arguments. This affects gfortran tests that call cabsf
+# in libm built by an earlier compiler. Return 1 if libm uses the same
+# argument passing as the compiler under test, 0 otherwise.
+#
+# When the target name changes, replace the cached result.
+
+proc check_effective_target_broken_cplxf_arg { } {
+ global et_broken_cplxf_arg_saved
+ global et_broken_cplxf_arg_target_name
+ global tool
+
+ # Skip the work for targets known not to be affected.
+ if { ![istarget powerpc64-*-linux*] } {
+ return 0
+ } elseif { [is-effective-target ilp32] } {
+ return 0
+ }
+
+ if { ![info exists et_broken_cplxf_arg_target_name] } {
+ set et_broken_cplxf_arg_target_name ""
+ }
+
+ # If the target has changed since we set the cached value, clear it.
+ set current_target [current_target_name]
+ if { $current_target != $et_broken_cplxf_arg_target_name } {
+ verbose "check_effective_target_broken_cplxf_arg: `$et_broken_cplxf_arg_target_name'" 2
+ set et_broken_cplxf_arg_target_name $current_target
+ if [info exists et_broken_cplxf_arg_saved] {
+ verbose "check_effective_target_broken_cplxf_arg: removing cached result" 2
+ unset et_broken_cplxf_arg_saved
+ }
+ }
+
+ if [info exists et_broken_cplxf_arg_saved] {
+ verbose "check_effective_target_broken_cplxf_arg: using cached result" 2
+ } else {
+ set et_broken_cplxf_arg_saved 0
+ # This is only known to affect one target.
+ if { ![istarget powerpc64-*-linux*] || ![is-effective-target lp64] } {
+ set et_broken_cplxf_arg_saved 0
+ verbose "check_effective_target_broken_cplxf_arg: caching 0" 2
+ return $et_broken_cplxf_arg_saved
+ }
+
+ # Set up, compile, and execute a C test program that calls cabsf.
+ set src cabsf[pid].c
+ set exe cabsf[pid].x
+
+ set f [open $src "w"]
+ puts $f "#include <complex.h>"
+ puts $f "extern void abort (void);"
+ puts $f "float fabsf (float);"
+ puts $f "float cabsf (_Complex float);"
+ puts $f "int main ()"
+ puts $f "{"
+ puts $f " _Complex float cf;"
+ puts $f " float f;"
+ puts $f " cf = 3 + 4.0fi;"
+ puts $f " f = cabsf (cf);"
+ puts $f " if (fabsf (f - 5.0) > 0.0001) abort ();"
+ puts $f " return 0;"
+ puts $f "}"
+ close $f
+
+ set lines [${tool}_target_compile $src $exe executable "-lm"]
+ file delete $src
+
+ if [string match "" $lines] {
+ # No error message, compilation succeeded.
+ set result [${tool}_load "./$exe" "" ""]
+ set status [lindex $result 0]
+ remote_file build delete $exe
+
+ verbose "check_effective_target_broken_cplxf_arg: status is <$status>" 2
+
+ if { $status != "pass" } {
+ set et_broken_cplxf_arg_saved 1
+ }
+ } else {
+ verbose "check_effective_target_broken_cplxf_arg: compilation failed" 2
+ }
+ }
+ return $et_broken_cplxf_arg_saved
+}
+
proc check_alpha_max_hw_available { } {
global alpha_max_hw_available_saved
global tool
return $alpha_max_hw_available_saved
}
-# Return 1 if we're generating 32-bit code using default options, 0
-# otherwise.
-
-proc check_effective_target_ilp32 { } {
- verbose "check_effective_target_ilp32: compiling source" 2
- set answer [string match "" [get_compiler_messages ilp32 object {
- int dummy[(sizeof (int) == 4 && sizeof (void *) == 4 && sizeof (long) == 4 ) ? 1 : -1];
- }]]
- verbose "check_effective_target_ilp32: returning $answer" 2
- return $answer
-}
+# Returns true iff the FUNCTION is available on the target system.
+# (This is essentially a Tcl implementation of Autoconf's
+# AC_CHECK_FUNC.)
-# Return 1 if we're generating 64-bit code using default options, 0
-# otherwise.
+proc check_function_available { function } {
+ set var "${function}_available_saved"
+ global $var
+ global tool
-proc check_effective_target_lp64 { } {
- verbose "check_effective_target_lp64: compiling source" 2
- set answer [string match "" [get_compiler_messages lp64 object {
- int dummy[(sizeof (int) == 4 && sizeof (void *) == 8 && sizeof (long) == 8 ) ? 1 : -1];
- }]]
- verbose "check_effective_target_lp64: returning $answer" 2
- return $answer
-}
+ if {![info exists $var]} {
+ # Assume it exists.
+ set $var 1
+ # Check to make sure.
+ set src "function[pid].c"
+ set exe "function[pid].exe"
-# Return 1 if the target supports hardware vectors of int, 0 otherwise.
-#
-# This won't change for different subtargets so cache the result.
+ set f [open $src "w"]
+ puts $f "#ifdef __cplusplus\nextern \"C\"\n#endif\n"
+ puts $f "char $function ();\n"
+ puts $f "int main () { $function (); }"
+ close $f
-proc check_effective_target_vect_int { } {
- global et_vect_int_saved
+ set lines [${tool}_target_compile $src $exe executable ""]
+ file delete $src
+ file delete $exe
- if [info exists et_vect_int_saved] {
- verbose "check_effective_target_vect_int: using cached result" 2
- } else {
- set et_vect_int_saved 0
- if { [istarget i?86-*-*]
- || [istarget powerpc*-*-*]
- || [istarget x86_64-*-*]
- || [istarget sparc*-*-*]
- || [istarget alpha*-*-*] } {
- set et_vect_int_saved 1
+ if {![string match "" $lines]} then {
+ set $var 0
+ verbose -log "$function is not available"
+ } else {
+ verbose -log "$function is available"
}
}
- verbose "check_effective_target_vect_int: returning $et_vect_int_saved" 2
- return $et_vect_int_saved
+ eval return \$$var
}
-# Return 1 if the target supports hardware vectors of long, 0 otherwise.
-#
-# This can change for different subtargets so do not cache the result.
+# Returns true iff "fork" is available on the target system.
-proc check_effective_target_vect_long { } {
- if { [istarget i?86-*-*]
- || ([istarget powerpc*-*-*] && [check_effective_target_ilp32])
- || [istarget x86_64-*-*]
- || ([istarget sparc*-*-*] && [check_effective_target_ilp32]) } {
- set answer 1
- } else {
- set answer 0
- }
+proc check_fork_available {} {
+ return [check_function_available "fork"]
+}
- verbose "check_effective_target_vect_long: returning $answer" 2
+# Returns true iff "mkfifo" is available on the target system.
+
+proc check_mkfifo_available {} {
+ if {[istarget *-*-cygwin*]} {
+ # Cygwin has mkfifo, but support is incomplete.
+ return 0
+ }
+
+ return [check_function_available "mkfifo"]
+}
+
+# Returns true iff "__cxa_atexit" is used on the target system.
+
+proc check_cxa_atexit_available { } {
+ global et_cxa_atexit
+ global et_cxa_atexit_target_name
+ global tool
+
+ if { ![info exists et_cxa_atexit_target_name] } {
+ set et_cxa_atexit_target_name ""
+ }
+
+ # If the target has changed since we set the cached value, clear it.
+ set current_target [current_target_name]
+ if { $current_target != $et_cxa_atexit_target_name } {
+ verbose "check_cxa_atexit_available: `$et_cxa_atexit_target_name'" 2
+ set et_cxa_atexit_target_name $current_target
+ if [info exists et_cxa_atexit] {
+ verbose "check_cxa_atexit_available: removing cached result" 2
+ unset et_cxa_atexit
+ }
+ }
+
+ if [info exists et_cxa_atexit] {
+ verbose "check_cxa_atexit_available: using cached result" 2
+ } elseif { [istarget "hppa*-*-hpux10*"] } {
+ # HP-UX 10 doesn't have __cxa_atexit but subsequent test passes.
+ set et_cxa_atexit 0
+ } else {
+ set et_cxa_atexit 0
+
+ # Set up, compile, and execute a C++ test program that depends
+ # on correct ordering of static object destructors. This is
+ # indicative of the presence and use of __cxa_atexit.
+ set src cxaatexit[pid].cc
+ set exe cxaatexit[pid].x
+
+ set f [open $src "w"]
+ puts $f "#include <stdlib.h>"
+ puts $f "static unsigned int count;"
+ puts $f "struct X"
+ puts $f "{"
+ puts $f " X() { count = 1; }"
+ puts $f " ~X()"
+ puts $f " {"
+ puts $f " if (count != 3)"
+ puts $f " exit(1);"
+ puts $f " count = 4;"
+ puts $f " }"
+ puts $f "};"
+ puts $f "void f()"
+ puts $f "{"
+ puts $f " static X x;"
+ puts $f "}"
+ puts $f "struct Y"
+ puts $f "{"
+ puts $f " Y() { f(); count = 2; }"
+ puts $f " ~Y()"
+ puts $f " {"
+ puts $f " if (count != 2)"
+ puts $f " exit(1);"
+ puts $f " count = 3;"
+ puts $f " }"
+ puts $f "};"
+ puts $f "Y y;"
+ puts $f "int main()"
+ puts $f "{ return 0; }"
+ close $f
+
+ set lines [${tool}_target_compile $src $exe executable ""]
+ file delete $src
+
+ if [string match "" $lines] {
+ # No error message, compilation succeeded.
+ set result [${tool}_load "./$exe" "" ""]
+ set status [lindex $result 0]
+ remote_file build delete $exe
+
+ verbose "check_cxa_atexit_available: status is <$status>" 2
+
+ if { $status == "pass" } {
+ set et_cxa_atexit 1
+ }
+ } else {
+ verbose "check_cxa_atexit_available: compilation failed" 2
+ }
+ }
+ return $et_cxa_atexit
+}
+
+
+# Return 1 if we're generating 32-bit code using default options, 0
+# otherwise.
+
+proc check_effective_target_ilp32 { } {
+ return [check_no_compiler_messages ilp32 object {
+ int dummy[sizeof (int) == 4
+ && sizeof (void *) == 4
+ && sizeof (long) == 4 ? 1 : -1];
+ }]
+}
+
+# Return 1 if we're generating 32-bit or larger integers using default
+# options, 0 otherwise.
+
+proc check_effective_target_int32plus { } {
+ return [check_no_compiler_messages int32plus object {
+ int dummy[sizeof (int) >= 4 ? 1 : -1];
+ }]
+}
+
+# Return 1 if we're generating 32-bit or larger pointers using default
+# options, 0 otherwise.
+
+proc check_effective_target_ptr32plus { } {
+ return [check_no_compiler_messages ptr32plus object {
+ int dummy[sizeof (void *) >= 4 ? 1 : -1];
+ }]
+}
+
+# Return 1 if we support 32-bit or larger array and structure sizes
+# using default options, 0 otherwise.
+
+proc check_effective_target_size32plus { } {
+ return [check_no_compiler_messages size32plus object {
+ char dummy[65537];
+ }]
+}
+
+# Returns 1 if we're generating 16-bit or smaller integers with the
+# default options, 0 otherwise.
+
+proc check_effective_target_int16 { } {
+ return [check_no_compiler_messages int16 object {
+ int dummy[sizeof (int) < 4 ? 1 : -1];
+ }]
+}
+
+# Return 1 if we're generating 64-bit code using default options, 0
+# otherwise.
+
+proc check_effective_target_lp64 { } {
+ return [check_no_compiler_messages lp64 object {
+ int dummy[sizeof (int) == 4
+ && sizeof (void *) == 8
+ && sizeof (long) == 8 ? 1 : -1];
+ }]
+}
+
+# Return 1 if the target supports long double larger than double,
+# 0 otherwise.
+
+proc check_effective_target_large_long_double { } {
+ return [check_no_compiler_messages large_long_double object {
+ int dummy[sizeof(long double) > sizeof(double) ? 1 : -1];
+ }]
+}
+
+
+# Return 1 if the target supports compiling decimal floating point,
+# 0 otherwise.
+
+proc check_effective_target_dfp_nocache { } {
+ verbose "check_effective_target_dfp_nocache: compiling source" 2
+ set ret [string match "" [get_compiler_messages dfp 0 object {
+ _Decimal32 x; _Decimal64 y; _Decimal128 z;
+ }]]
+ verbose "check_effective_target_dfp_nocache: returning $ret" 2
+ return $ret
+}
+
+proc check_effective_target_dfprt_nocache { } {
+ global tool
+
+ set ret 0
+
+ verbose "check_effective_target_dfprt_nocache: compiling source" 2
+ # Set up, compile, and execute a test program containing decimal
+ # float operations.
+ set src dfprt[pid].c
+ set exe dfprt[pid].x
+
+ set f [open $src "w"]
+ puts $f "_Decimal32 x = 1.2df; _Decimal64 y = 2.3dd; _Decimal128 z;"
+ puts $f "int main () { z = x + y; return 0; }"
+ close $f
+
+ verbose "check_effective_target_dfprt_nocache: compiling testfile $src" 2
+ set lines [${tool}_target_compile $src $exe executable ""]
+ file delete $src
+
+ if [string match "" $lines] then {
+ # No error message, compilation succeeded.
+ set result [${tool}_load "./$exe" "" ""]
+ set status [lindex $result 0]
+ remote_file build delete $exe
+ verbose "check_effective_target_dfprt_nocache: testfile status is <$status>" 2
+ if { $status == "pass" } then {
+ set ret 1
+ }
+ }
+ return $ret
+ verbose "check_effective_target_dfprt_nocache: returning $ret" 2
+}
+
+# Return 1 if the target supports compiling Decimal Floating Point,
+# 0 otherwise.
+#
+# This won't change for different subtargets so cache the result.
+
+proc check_effective_target_dfp { } {
+ global et_dfp_saved
+
+ if [info exists et_dfp_saved] {
+ verbose "check_effective_target_dfp: using cached result" 2
+ } else {
+ set et_dfp_saved [check_effective_target_dfp_nocache]
+ }
+ verbose "check_effective_target_dfp: returning $et_dfp_saved" 2
+ return $et_dfp_saved
+}
+
+# Return 1 if the target supports linking and executing Decimal Floating
+# Point, # 0 otherwise.
+#
+# This won't change for different subtargets so cache the result.
+
+proc check_effective_target_dfprt { } {
+ global et_dfprt_saved
+ global tool
+
+ if [info exists et_dfprt_saved] {
+ verbose "check_effective_target_dfprt: using cached result" 2
+ } else {
+ set et_dfprt_saved [check_effective_target_dfprt_nocache]
+ }
+ verbose "check_effective_target_dfprt: returning $et_dfprt_saved" 2
+ return $et_dfprt_saved
+}
+
+# Return 1 if the target needs a command line argument to enable a SIMD
+# instruction set.
+
+proc check_effective_target_vect_cmdline_needed { } {
+ global et_vect_cmdline_needed_saved
+ global et_vect_cmdline_needed_target_name
+
+ if { ![info exists et_vect_cmdline_needed_target_name] } {
+ set et_vect_cmdline_needed_target_name ""
+ }
+
+ # If the target has changed since we set the cached value, clear it.
+ set current_target [current_target_name]
+ if { $current_target != $et_vect_cmdline_needed_target_name } {
+ verbose "check_effective_target_vect_cmdline_needed: `$et_vect_cmdline_needed_target_name' `$current_target'" 2
+ set et_vect_cmdline_needed_target_name $current_target
+ if { [info exists et_vect_cmdline_needed_saved] } {
+ verbose "check_effective_target_vect_cmdline_needed: removing cached result" 2
+ unset et_vect_cmdline_needed_saved
+ }
+ }
+
+ if [info exists et_vect_cmdline_needed_saved] {
+ verbose "check_effective_target_vect_cmdline_needed: using cached result" 2
+ } else {
+ set et_vect_cmdline_needed_saved 1
+ if { [istarget ia64-*-*]
+ || (([istarget x86_64-*-*] || [istarget i?86-*-*])
+ && [check_effective_target_lp64])
+ || ([istarget powerpc*-*-*]
+ && ([check_effective_target_powerpc_spe]
+ || [check_effective_target_powerpc_altivec]))} {
+ set et_vect_cmdline_needed_saved 0
+ }
+ }
+
+ verbose "check_effective_target_vect_cmdline_needed: returning $et_vect_cmdline_needed_saved" 2
+ return $et_vect_cmdline_needed_saved
+}
+
+# Return 1 if the target supports hardware vectors of int, 0 otherwise.
+#
+# This won't change for different subtargets so cache the result.
+
+proc check_effective_target_vect_int { } {
+ global et_vect_int_saved
+
+ if [info exists et_vect_int_saved] {
+ verbose "check_effective_target_vect_int: using cached result" 2
+ } else {
+ set et_vect_int_saved 0
+ if { [istarget i?86-*-*]
+ || [istarget powerpc*-*-*]
+ || [istarget spu-*-*]
+ || [istarget x86_64-*-*]
+ || [istarget sparc*-*-*]
+ || [istarget alpha*-*-*]
+ || [istarget ia64-*-*] } {
+ set et_vect_int_saved 1
+ }
+ }
+
+ verbose "check_effective_target_vect_int: returning $et_vect_int_saved" 2
+ return $et_vect_int_saved
+}
+
+# Return 1 is this is an arm target using 32-bit instructions
+proc check_effective_target_arm32 { } {
+ global et_arm32_saved
+ global et_arm32_target_name
+ global compiler_flags
+
+ if { ![info exists et_arm32_target_name] } {
+ set et_arm32_target_name ""
+ }
+
+ # If the target has changed since we set the cached value, clear it.
+ set current_target [current_target_name]
+ if { $current_target != $et_arm32_target_name } {
+ verbose "check_effective_target_arm32: `$et_arm32_target_name' `$current_target'" 2
+ set et_arm32_target_name $current_target
+ if { [info exists et_arm32_saved] } {
+ verbose "check_effective_target_arm32: removing cached result" 2
+ unset et_arm32_saved
+ }
+ }
+
+ if [info exists et_arm32_saved] {
+ verbose "check-effective_target_arm32: using cached result" 2
+ } else {
+ set et_arm32_saved 0
+ if { [istarget arm-*-*]
+ || [istarget strongarm*-*-*]
+ || [istarget xscale-*-*] } {
+ if ![string match "*-mthumb *" $compiler_flags] {
+ set et_arm32_saved 1
+ }
+ }
+ }
+ verbose "check_effective_target_arm32: returning $et_arm32_saved" 2
+ return $et_arm32_saved
+}
+
+# Return 1 if this is an ARM target supporting -mfpu=vfp
+# -mfloat-abi=softfp. Some multilibs may be incompatible with these
+# options.
+
+proc check_effective_target_arm_vfp_ok { } {
+ if { [check_effective_target_arm32] } {
+ return [check_no_compiler_messages arm_vfp_ok object {
+ int dummy;
+ } "-mfpu=vfp -mfloat-abi=softfp"]
+ } else {
+ return 0
+ }
+}
+
+# Return 1 if this is a PowerPC target with floating-point registers.
+
+proc check_effective_target_powerpc_fprs { } {
+ if { [istarget powerpc*-*-*]
+ || [istarget rs6000-*-*] } {
+ return [check_no_compiler_messages powerpc_fprs object {
+ #ifdef __NO_FPRS__
+ #error no FPRs
+ #else
+ int dummy;
+ #endif
+ }]
+ } else {
+ return 0
+ }
+}
+
+# Return 1 if this is a PowerPC target supporting -maltivec.
+
+proc check_effective_target_powerpc_altivec_ok { } {
+ if { [istarget powerpc*-*-*]
+ || [istarget rs6000-*-*] } {
+ # AltiVec is not supported on Aix.
+ if { [istarget powerpc*-*-aix*] } {
+ return 0
+ }
+ return [check_no_compiler_messages powerpc_altivec_ok object {
+ int dummy;
+ } "-maltivec"]
+ } else {
+ return 0
+ }
+}
+
+# Return 1 if this is a PowerPC target with SPE enabled.
+
+proc check_effective_target_powerpc_spe { } {
+ if { [istarget powerpc*-*-*] } {
+ return [check_no_compiler_messages powerpc_spe object {
+ #ifndef __SPE__
+ #error not SPE
+ #else
+ int dummy;
+ #endif
+ }]
+ } else {
+ return 0
+ }
+}
+
+# Return 1 if this is a PowerPC target with Altivec enabled.
+
+proc check_effective_target_powerpc_altivec { } {
+ if { [istarget powerpc*-*-*] } {
+ return [check_no_compiler_messages powerpc_altivec object {
+ #ifndef __ALTIVEC__
+ #error not Altivec
+ #else
+ int dummy;
+ #endif
+ }]
+ } else {
+ return 0
+ }
+}
+
+# Return 1 if the target supports hardware vector shift operation.
+
+proc check_effective_target_vect_shift { } {
+ global et_vect_shift_saved
+
+ if [info exists et_vect_shift_saved] {
+ verbose "check_effective_target_vect_shift: using cached result" 2
+ } else {
+ set et_vect_shift_saved 0
+ if { [istarget powerpc*-*-*]
+ || [istarget ia64-*-*]
+ || [istarget i?86-*-*]
+ || [istarget x86_64-*-*] } {
+ set et_vect_shift_saved 1
+ }
+ }
+
+ verbose "check_effective_target_vect_shift: returning $et_vect_shift_saved" 2
+ return $et_vect_shift_saved
+}
+
+# Return 1 if the target supports hardware vectors of long, 0 otherwise.
+#
+# This can change for different subtargets so do not cache the result.
+
+proc check_effective_target_vect_long { } {
+ if { [istarget i?86-*-*]
+ || ([istarget powerpc*-*-*] && [check_effective_target_ilp32])
+ || [istarget x86_64-*-*]
+ || ([istarget sparc*-*-*] && [check_effective_target_ilp32]) } {
+ set answer 1
+ } else {
+ set answer 0
+ }
+
+ verbose "check_effective_target_vect_long: returning $answer" 2
return $answer
}
set et_vect_float_saved 0
if { [istarget i?86-*-*]
|| [istarget powerpc*-*-*]
+ || [istarget spu-*-*]
|| [istarget mipsisa64*-*-*]
- || [istarget x86_64-*-*] } {
+ || [istarget x86_64-*-*]
+ || [istarget ia64-*-*] } {
set et_vect_float_saved 1
}
}
} else {
set et_vect_double_saved 0
if { [istarget i?86-*-*]
- || [istarget x86_64-*-*] } {
+ || [istarget x86_64-*-*]
+ || [istarget spu-*-*] } {
set et_vect_double_saved 1
}
}
return $et_vect_double_saved
}
+# Return 0 if the target supports hardware comparison of vectors of double, 0 otherwise.
+#
+# This won't change for different subtargets so cache the result.
+
+proc check_effective_target_vect_no_compare_double { } {
+ global et_vect_no_compare_double_saved
+
+ if [info exists et_vect_no_compare_double_saved] {
+ verbose "check_effective_target_vect_no_compare_double: using cached result" 2
+ } else {
+ set et_vect_no_compare_double_saved 0
+ if { [istarget spu-*-*] } {
+ set et_vect_no_compare_double_saved 1
+ }
+ }
+
+ verbose "check_effective_target_vect_no_compare_double: returning $et_vect_no_compare_double_saved" 2
+ return $et_vect_no_compare_double_saved
+}
+
# Return 1 if the target plus current options does not support a vector
-# max instruction, 0 otherwise.
+# max instruction on "int", 0 otherwise.
#
# This won't change for different subtargets so cache the result.
-proc check_effective_target_vect_no_max { } {
- global et_vect_no_max_saved
+proc check_effective_target_vect_no_int_max { } {
+ global et_vect_no_int_max_saved
- if [info exists et_vect_no_max_saved] {
- verbose "check_effective_target_vect_no_max: using cached result" 2
+ if [info exists et_vect_no_int_max_saved] {
+ verbose "check_effective_target_vect_no_int_max: using cached result" 2
} else {
- set et_vect_no_max_saved 0
- if { [istarget i?86-*-*]
- || [istarget x86_64-*-*]
- || [istarget sparc*-*-*]
+ set et_vect_no_int_max_saved 0
+ if { [istarget sparc*-*-*]
+ || [istarget spu-*-*]
|| [istarget alpha*-*-*] } {
- set et_vect_no_max_saved 1
+ set et_vect_no_int_max_saved 1
}
}
- verbose "check_effective_target_vect_no_max: returning $et_vect_no_max_saved" 2
- return $et_vect_no_max_saved
+ verbose "check_effective_target_vect_no_int_max: returning $et_vect_no_int_max_saved" 2
+ return $et_vect_no_int_max_saved
+}
+
+# Return 1 if the target plus current options does not support a vector
+# add instruction on "int", 0 otherwise.
+#
+# This won't change for different subtargets so cache the result.
+
+proc check_effective_target_vect_no_int_add { } {
+ global et_vect_no_int_add_saved
+
+ if [info exists et_vect_no_int_add_saved] {
+ verbose "check_effective_target_vect_no_int_add: using cached result" 2
+ } else {
+ set et_vect_no_int_add_saved 0
+ # Alpha only supports vector add on V8QI and V4HI.
+ if { [istarget alpha*-*-*] } {
+ set et_vect_no_int_add_saved 1
+ }
+ }
+ verbose "check_effective_target_vect_no_int_add: returning $et_vect_no_int_add_saved" 2
+ return $et_vect_no_int_add_saved
}
# Return 1 if the target plus current options does not support vector
verbose "check_effective_target_vect_no_bitwise: using cached result" 2
} else {
set et_vect_no_bitwise_saved 0
- if { [istarget i?86-*-*]
- || [istarget x86_64-*-*] } {
- set et_vect_no_bitwise_saved 1
- }
}
verbose "check_effective_target_vect_no_bitwise: returning $et_vect_no_bitwise_saved" 2
return $et_vect_no_bitwise_saved
}
+# Return 1 if the target plus current options supports a vector
+# widening summation of *short* args into *int* result, 0 otherwise.
+# A target can also support this widening summation if it can support
+# promotion (unpacking) from shorts to ints.
+#
+# This won't change for different subtargets so cache the result.
+
+proc check_effective_target_vect_widen_sum_hi_to_si { } {
+ global et_vect_widen_sum_hi_to_si
+
+ if [info exists et_vect_widen_sum_hi_to_si_saved] {
+ verbose "check_effective_target_vect_widen_sum_hi_to_si: using cached result" 2
+ } else {
+ set et_vect_widen_sum_hi_to_si_saved [check_effective_target_vect_unpack]
+ if { [istarget powerpc*-*-*] } {
+ set et_vect_widen_sum_hi_to_si_saved 1
+ }
+ }
+ verbose "check_effective_target_vect_widen_sum_hi_to_si: returning $et_vect_widen_sum_hi_to_si_saved" 2
+ return $et_vect_widen_sum_hi_to_si_saved
+}
+
+# Return 1 if the target plus current options supports a vector
+# widening summation of *char* args into *short* result, 0 otherwise.
+# A target can also support this widening summation if it can support
+# promotion (unpacking) from chars to shorts.
+#
+# This won't change for different subtargets so cache the result.
+
+proc check_effective_target_vect_widen_sum_qi_to_hi { } {
+ global et_vect_widen_sum_qi_to_hi
+
+ if [info exists et_vect_widen_sum_qi_to_hi_saved] {
+ verbose "check_effective_target_vect_widen_sum_qi_to_hi: using cached result" 2
+ } else {
+ set et_vect_widen_sum_qi_to_hi_saved 0
+ if { [check_effective_target_vect_unpack] } {
+ set et_vect_widen_sum_qi_to_hi_saved 1
+ }
+ }
+ verbose "check_effective_target_vect_widen_sum_qi_to_hi: returning $et_vect_widen_sum_qi_to_hi_saved" 2
+ return $et_vect_widen_sum_qi_to_hi_saved
+}
+
+# Return 1 if the target plus current options supports a vector
+# widening summation of *char* args into *int* result, 0 otherwise.
+#
+# This won't change for different subtargets so cache the result.
+
+proc check_effective_target_vect_widen_sum_qi_to_si { } {
+ global et_vect_widen_sum_qi_to_si
+
+ if [info exists et_vect_widen_sum_qi_to_si_saved] {
+ verbose "check_effective_target_vect_widen_sum_qi_to_si: using cached result" 2
+ } else {
+ set et_vect_widen_sum_qi_to_si_saved 0
+ if { [istarget powerpc*-*-*] } {
+ set et_vect_widen_sum_qi_to_si_saved 1
+ }
+ }
+ verbose "check_effective_target_vect_widen_sum_qi_to_si: returning $et_vect_widen_sum_qi_to_si_saved" 2
+ return $et_vect_widen_sum_qi_to_si_saved
+}
+
+# Return 1 if the target plus current options supports a vector
+# widening multiplication of *char* args into *short* result, 0 otherwise.
+# A target can also support this widening multplication if it can support
+# promotion (unpacking) from chars to shorts, and vect_short_mult (non-widening
+# multiplication of shorts).
+#
+# This won't change for different subtargets so cache the result.
+
+
+proc check_effective_target_vect_widen_mult_qi_to_hi { } {
+ global et_vect_widen_mult_qi_to_hi
+
+ if [info exists et_vect_widen_mult_qi_to_hi_saved] {
+ verbose "check_effective_target_vect_widen_mult_qi_to_hi: using cached result" 2
+ } else {
+ if { [check_effective_target_vect_unpack]
+ && [check_effective_target_vect_short_mult] } {
+ set et_vect_widen_mult_qi_to_hi_saved 1
+ } else {
+ set et_vect_widen_mult_qi_to_hi_saved 0
+ }
+ if { [istarget powerpc*-*-*] } {
+ set et_vect_widen_mult_qi_to_hi_saved 1
+ }
+ }
+ verbose "check_effective_target_vect_widen_mult_qi_to_hi: returning $et_vect_widen_mult_qi_to_hi_saved" 2
+ return $et_vect_widen_mult_qi_to_hi_saved
+}
+
+# Return 1 if the target plus current options supports a vector
+# widening multiplication of *short* args into *int* result, 0 otherwise.
+# A target can also support this widening multplication if it can support
+# promotion (unpacking) from shorts to ints, and vect_int_mult (non-widening
+# multiplication of ints).
+#
+# This won't change for different subtargets so cache the result.
+
+
+proc check_effective_target_vect_widen_mult_hi_to_si { } {
+ global et_vect_widen_mult_hi_to_si
+
+ if [info exists et_vect_widen_mult_hi_to_si_saved] {
+ verbose "check_effective_target_vect_widen_mult_hi_to_si: using cached result" 2
+ } else {
+ if { [check_effective_target_vect_unpack]
+ && [check_effective_target_vect_int_mult] } {
+ set et_vect_widen_mult_hi_to_si_saved 1
+ } else {
+ set et_vect_widen_mult_hi_to_si_saved 0
+ }
+ if { [istarget powerpc*-*-*]
+ || [istarget spu-*-*]
+ || [istarget i?86-*-*]
+ || [istarget x86_64-*-*] } {
+ set et_vect_widen_mult_hi_to_si_saved 1
+ }
+ }
+ verbose "check_effective_target_vect_widen_mult_hi_to_si: returning $et_vect_widen_mult_hi_to_si_saved" 2
+ return $et_vect_widen_mult_hi_to_si_saved
+}
+
+# Return 1 if the target plus current options supports a vector
+# dot-product of signed chars, 0 otherwise.
+#
+# This won't change for different subtargets so cache the result.
+
+proc check_effective_target_vect_sdot_qi { } {
+ global et_vect_sdot_qi
+
+ if [info exists et_vect_sdot_qi_saved] {
+ verbose "check_effective_target_vect_sdot_qi: using cached result" 2
+ } else {
+ set et_vect_sdot_qi_saved 0
+ }
+ verbose "check_effective_target_vect_sdot_qi: returning $et_vect_sdot_qi_saved" 2
+ return $et_vect_sdot_qi_saved
+}
+
+# Return 1 if the target plus current options supports a vector
+# dot-product of unsigned chars, 0 otherwise.
+#
+# This won't change for different subtargets so cache the result.
+
+proc check_effective_target_vect_udot_qi { } {
+ global et_vect_udot_qi
+
+ if [info exists et_vect_udot_qi_saved] {
+ verbose "check_effective_target_vect_udot_qi: using cached result" 2
+ } else {
+ set et_vect_udot_qi_saved 0
+ if { [istarget powerpc*-*-*] } {
+ set et_vect_udot_qi_saved 1
+ }
+ }
+ verbose "check_effective_target_vect_udot_qi: returning $et_vect_udot_qi_saved" 2
+ return $et_vect_udot_qi_saved
+}
+
+# Return 1 if the target plus current options supports a vector
+# dot-product of signed shorts, 0 otherwise.
+#
+# This won't change for different subtargets so cache the result.
+
+proc check_effective_target_vect_sdot_hi { } {
+ global et_vect_sdot_hi
+
+ if [info exists et_vect_sdot_hi_saved] {
+ verbose "check_effective_target_vect_sdot_hi: using cached result" 2
+ } else {
+ set et_vect_sdot_hi_saved 0
+ if { [istarget powerpc*-*-*]
+ || [istarget i?86-*-*]
+ || [istarget x86_64-*-*] } {
+ set et_vect_sdot_hi_saved 1
+ }
+ }
+ verbose "check_effective_target_vect_sdot_hi: returning $et_vect_sdot_hi_saved" 2
+ return $et_vect_sdot_hi_saved
+}
+
+# Return 1 if the target plus current options supports a vector
+# dot-product of unsigned shorts, 0 otherwise.
+#
+# This won't change for different subtargets so cache the result.
+
+proc check_effective_target_vect_udot_hi { } {
+ global et_vect_udot_hi
+
+ if [info exists et_vect_udot_hi_saved] {
+ verbose "check_effective_target_vect_udot_hi: using cached result" 2
+ } else {
+ set et_vect_udot_hi_saved 0
+ if { [istarget powerpc*-*-*] } {
+ set et_vect_udot_hi_saved 1
+ }
+ }
+ verbose "check_effective_target_vect_udot_hi: returning $et_vect_udot_hi_saved" 2
+ return $et_vect_udot_hi_saved
+}
+
+
+# Return 1 if the target plus current options supports a vector
+# demotion (packing) of shorts (to chars) and ints (to shorts)
+# using modulo arithmetic, 0 otherwise.
+#
+# This won't change for different subtargets so cache the result.
+
+proc check_effective_target_vect_pack_mod { } {
+ global et_vect_pack_mod
+
+ if [info exists et_vect_pack_mod_saved] {
+ verbose "check_effective_target_vect_pack_mod: using cached result" 2
+ } else {
+ set et_vect_pack_mod_saved 0
+ if { [istarget powerpc*-*-*]
+ || [istarget i?86-*-*]
+ || [istarget x86_64-*-*] } {
+ set et_vect_pack_mod_saved 1
+ }
+ }
+ verbose "check_effective_target_vect_pack_mod: returning $et_vect_pack_mod_saved" 2
+ return $et_vect_pack_mod_saved
+}
+
+# Return 1 if the target plus current options supports a vector
+# promotion (unpacking) of chars (to shorts) and shorts (to ints), 0 otherwise.
+#
+# This won't change for different subtargets so cache the result.
+
+proc check_effective_target_vect_unpack { } {
+ global et_vect_unpack
+
+ if [info exists et_vect_unpack_saved] {
+ verbose "check_effective_target_vect_unpack: using cached result" 2
+ } else {
+ set et_vect_unpack_saved 0
+ if { [istarget powerpc*-*-*]
+ || [istarget i?86-*-*]
+ || [istarget x86_64-*-*] } {
+ set et_vect_unpack_saved 1
+ }
+ }
+ verbose "check_effective_target_vect_unpack: returning $et_vect_unpack_saved" 2
+ return $et_vect_unpack_saved
+}
+
# Return 1 if the target plus current options does not support a vector
# alignment mechanism, 0 otherwise.
#
} else {
set et_vect_no_align_saved 0
if { [istarget mipsisa64*-*-*]
- || [istarget sparc*-*-*] } {
+ || [istarget sparc*-*-*]
+ || [istarget ia64-*-*] } {
set et_vect_no_align_saved 1
}
}
return $et_vect_no_align_saved
}
+# Return 1 if the target supports vector conditional operations, 0 otherwise.
+
+proc check_effective_target_vect_condition { } {
+ global et_vect_cond_saved
+
+ if [info exists et_vect_cond_saved] {
+ verbose "check_effective_target_vect_cond: using cached result" 2
+ } else {
+ set et_vect_cond_saved 0
+ if { [istarget powerpc*-*-*]
+ || [istarget ia64-*-*]
+ || [istarget i?86-*-*]
+ || [istarget x86_64-*-*] } {
+ set et_vect_cond_saved 1
+ }
+ }
+
+ verbose "check_effective_target_vect_cond: returning $et_vect_cond_saved" 2
+ return $et_vect_cond_saved
+}
+
+# Return 1 if the target supports vector char multiplication, 0 otherwise.
+
+proc check_effective_target_vect_char_mult { } {
+ global et_vect_char_mult_saved
+
+ if [info exists et_vect_char_mult_saved] {
+ verbose "check_effective_target_vect_char_mult: using cached result" 2
+ } else {
+ set et_vect_char_mult_saved 0
+ if { [istarget ia64-*-*]
+ || [istarget i?86-*-*]
+ || [istarget x86_64-*-*] } {
+ set et_vect_char_mult_saved 1
+ }
+ }
+
+ verbose "check_effective_target_vect_char_mult: returning $et_vect_char_mult_saved" 2
+ return $et_vect_char_mult_saved
+}
+
+# Return 1 if the target supports vector short multiplication, 0 otherwise.
+
+proc check_effective_target_vect_short_mult { } {
+ global et_vect_short_mult_saved
+
+ if [info exists et_vect_short_mult_saved] {
+ verbose "check_effective_target_vect_short_mult: using cached result" 2
+ } else {
+ set et_vect_short_mult_saved 0
+ if { [istarget ia64-*-*]
+ || [istarget i?86-*-*]
+ || [istarget x86_64-*-*] } {
+ set et_vect_short_mult_saved 1
+ }
+ }
+
+ verbose "check_effective_target_vect_short_mult: returning $et_vect_short_mult_saved" 2
+ return $et_vect_short_mult_saved
+}
+
+# Return 1 if the target supports vector int multiplication, 0 otherwise.
+
+proc check_effective_target_vect_int_mult { } {
+ global et_vect_int_mult_saved
+
+ if [info exists et_vect_int_mult_saved] {
+ verbose "check_effective_target_vect_int_mult: using cached result" 2
+ } else {
+ set et_vect_int_mult_saved 0
+ if { [istarget powerpc*-*-*]
+ || [istarget i?86-*-*]
+ || [istarget x86_64-*-*] } {
+ set et_vect_int_mult_saved 1
+ }
+ }
+
+ verbose "check_effective_target_vect_int_mult: returning $et_vect_int_mult_saved" 2
+ return $et_vect_int_mult_saved
+}
+
+# Return 1 if the target supports vector even/odd elements extraction, 0 otherwise.
+
+proc check_effective_target_vect_extract_even_odd { } {
+ global et_vect_extract_even_odd_saved
+
+ if [info exists et_vect_extract_even_odd_saved] {
+ verbose "check_effective_target_vect_extract_even_odd: using cached result" 2
+ } else {
+ set et_vect_extract_even_odd_saved 0
+ if { [istarget powerpc*-*-*] } {
+ set et_vect_extract_even_odd_saved 1
+ }
+ }
+
+ verbose "check_effective_target_vect_extract_even_odd: returning $et_vect_extract_even_odd_saved" 2
+ return $et_vect_extract_even_odd_saved
+}
+
+# Return 1 if the target supports vector interleaving, 0 otherwise.
+
+proc check_effective_target_vect_interleave { } {
+ global et_vect_interleave_saved
+
+ if [info exists et_vect_interleave_saved] {
+ verbose "check_effective_target_vect_interleave: using cached result" 2
+ } else {
+ set et_vect_interleave_saved 0
+ if { [istarget powerpc*-*-*]
+ || [istarget i?86-*-*]
+ || [istarget x86_64-*-*] } {
+ set et_vect_interleave_saved 1
+ }
+ }
+
+ verbose "check_effective_target_vect_interleave: returning $et_vect_interleave_saved" 2
+ return $et_vect_interleave_saved
+}
+
+# Return 1 if the target supports section-anchors
+
+proc check_effective_target_section_anchors { } {
+ global et_section_anchors_saved
+
+ if [info exists et_section_anchors_saved] {
+ verbose "check_effective_target_section_anchors: using cached result" 2
+ } else {
+ set et_section_anchors_saved 0
+ if { [istarget powerpc*-*-*] } {
+ set et_section_anchors_saved 1
+ }
+ }
+
+ verbose "check_effective_target_section_anchors: returning $et_section_anchors_saved" 2
+ return $et_section_anchors_saved
+}
+
+# Return 1 if the target supports atomic operations on "int" and "long".
+
+proc check_effective_target_sync_int_long { } {
+ global et_sync_int_long_saved
+
+ if [info exists et_sync_int_long_saved] {
+ verbose "check_effective_target_sync_int_long: using cached result" 2
+ } else {
+ set et_sync_int_long_saved 0
+# This is intentionally powerpc but not rs6000, rs6000 doesn't have the
+# load-reserved/store-conditional instructions.
+ if { [istarget ia64-*-*]
+ || [istarget i?86-*-*]
+ || [istarget x86_64-*-*]
+ || [istarget alpha*-*-*]
+ || [istarget s390*-*-*]
+ || [istarget powerpc*-*-*]
+ || [istarget sparc64-*-*]
+ || [istarget sparcv9-*-*] } {
+ set et_sync_int_long_saved 1
+ }
+ }
+
+ verbose "check_effective_target_sync_int_long: returning $et_sync_int_long_saved" 2
+ return $et_sync_int_long_saved
+}
+
+# Return 1 if the target supports atomic operations on "char" and "short".
+
+proc check_effective_target_sync_char_short { } {
+ global et_sync_char_short_saved
+
+ if [info exists et_sync_char_short_saved] {
+ verbose "check_effective_target_sync_char_short: using cached result" 2
+ } else {
+ set et_sync_char_short_saved 0
+# This is intentionally powerpc but not rs6000, rs6000 doesn't have the
+# load-reserved/store-conditional instructions.
+ if { [istarget ia64-*-*]
+ || [istarget i?86-*-*]
+ || [istarget x86_64-*-*]
+ || [istarget alpha*-*-*]
+ || [istarget s390*-*-*]
+ || [istarget powerpc*-*-*]
+ || [istarget sparc64-*-*]
+ || [istarget sparcv9-*-*] } {
+ set et_sync_char_short_saved 1
+ }
+ }
+
+ verbose "check_effective_target_sync_char_short: returning $et_sync_char_short_saved" 2
+ return $et_sync_char_short_saved
+}
+
+# Return 1 if the target uses a ColdFire FPU.
+
+proc check_effective_target_coldfire_fpu { } {
+ return [check_no_compiler_messages coldfire_fpu assembly {
+ #ifndef __mcffpu__
+ #error FOO
+ #endif
+ }]
+}
+
+# Return true if this is a uClibc target.
+
+proc check_effective_target_uclibc {} {
+ return [check_no_compiler_messages uclibc object {
+ #include <features.h>
+ #if !defined (__UCLIBC__)
+ #error FOO
+ #endif
+ }]
+}
+
+# Return true if this is a Newlib target.
+
+proc check_effective_target_newlib {} {
+ return [check_no_compiler_messages newlib object {
+ #include <newlib.h>
+ }]
+}
+
+# Return 1 if
+# (a) an error of a few ULP is expected in string to floating-point
+# conversion functions; and
+# (b) overflow is not always detected correctly by those functions.
+
+proc check_effective_target_lax_strtofp {} {
+ # By default, assume that all uClibc targets suffer from this.
+ return [check_effective_target_uclibc]
+}
+
+# Return 1 if this is a target for which wcsftime is a dummy
+# function that always returns 0.
+
+proc check_effective_target_dummy_wcsftime {} {
+ # By default, assume that all uClibc targets suffer from this.
+ return [check_effective_target_uclibc]
+}
+
# Return 1 if the target matches the effective target 'arg', 0 otherwise.
# This can be used with any check_* proc that takes no argument and
# returns only 1 or 0. It could be used with check_* procs that take
"vmx_hw" { set selected [check_vmx_hw_available] }
"named_sections" { set selected [check_named_sections_available] }
"gc_sections" { set selected [check_gc_sections_available] }
+ "cxa_atexit" { set selected [check_cxa_atexit_available] }
default { error "unknown effective target keyword `$arg'" }
}
}
"vmx_hw" { return 1 }
"named_sections" { return 1 }
"gc_sections" { return 1 }
+ "cxa_atexit" { return 1 }
default { return 0 }
}
}
}
+
+# Return 1 if target default to short enums
+
+proc check_effective_target_short_enums { } {
+ return [check_no_compiler_messages short_enums assembly {
+ enum foo { bar };
+ int s[sizeof (enum foo) == 1 ? 1 : -1];
+ }]
+}
+
+# Return 1 if target supports merging string constants at link time.
+
+proc check_effective_target_string_merging { } {
+ return [check_no_messages_and_pattern string_merging \
+ "rodata\\.str" assembly {
+ const char *var = "String";
+ } {-O2}]
+}
+
+# Return 1 if target has the basic signed and unsigned types in
+# <stdint.h>, 0 otherwise.
+
+proc check_effective_target_stdint_types { } {
+ return [check_no_compiler_messages stdint_types assembly {
+ #include <stdint.h>
+ int8_t a; int16_t b; int32_t c; int64_t d;
+ uint8_t e; uint16_t f; uint32_t g; uint64_t h;
+ }]
+}
+
+# Return 1 if programs are intended to be run on a simulator
+# (i.e. slowly) rather than hardware (i.e. fast).
+
+proc check_effective_target_simulator { } {
+
+ # All "src/sim" simulators set this one.
+ if [board_info target exists is_simulator] {
+ return [board_info target is_simulator]
+ }
+
+ # The "sid" simulators don't set that one, but at least they set
+ # this one.
+ if [board_info target exists slow_simulator] {
+ return [board_info target slow_simulator]
+ }
+
+ return 0
+}
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