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Define "random_device" effective target 

Currently only matches targets where _GLIBCXX_USE_RANDOM_TR1 is defined,
which means /dev/random and /dev/urandom are usable.

	* testsuite/25_algorithms/make_heap/complexity.cc: Require effective
	target for std::random_device.
	* testsuite/26_numerics/random/random_device/cons/default.cc:
	Likewise.
	* testsuite/experimental/algorithm/sample-2.cc: Likewise.
	* testsuite/experimental/algorithm/shuffle.cc: Likewise.
	* testsuite/experimental/random/randint.cc: Likewise.
	* testsuite/lib/libstdc++.exp
	(check_effective_target_random_device): New proc.

From-SVN: r262415
This commit is contained in:
Jonathan Wakely 2018-07-04 17:56:21 +01:00 committed by Jonathan Wakely
parent 4e4120a27a
commit 89bc4ab198
7 changed files with 45 additions and 0 deletions
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12
libstdc++-v3/ChangeLog
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@ -1,3 +1,15 @@
2018-07-04 Jonathan Wakely <jwakely@redhat.com>
* testsuite/25_algorithms/make_heap/complexity.cc: Require effective
target for std::random_device.
* testsuite/26_numerics/random/random_device/cons/default.cc:
Likewise.
* testsuite/experimental/algorithm/sample-2.cc: Likewise.
* testsuite/experimental/algorithm/shuffle.cc: Likewise.
* testsuite/experimental/random/randint.cc: Likewise.
* testsuite/lib/libstdc++.exp
(check_effective_target_random_device): New proc.
2018-07-04 Jonathan Wakely <jwakely@redhat.com>
Jakub Jelinek <jakub@redhat.com>

1
libstdc++-v3/testsuite/25_algorithms/make_heap/complexity.cc
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@ -16,6 +16,7 @@
// <http://www.gnu.org/licenses/>.
// { dg-do run { target c++11 } }
// { dg-require-effective-target random_device }
#include <random>
#include <vector>

1
libstdc++-v3/testsuite/26_numerics/random/random_device/cons/default.cc
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@ -1,4 +1,5 @@
// { dg-do run { target c++11 } }
// { dg-require-effective-target random_device }
// { dg-require-cstdint "" }
//
// 2008-11-24 Edward M. Smith-Rowland <3dw4rd@verizon.net>

1
libstdc++-v3/testsuite/experimental/algorithm/sample-2.cc
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@ -16,6 +16,7 @@
// <http://www.gnu.org/licenses/>.
// { dg-do run { target c++14 } }
// { dg-require-effective-target random_device }
// { dg-require-effective-target tls_runtime }
// { dg-add-options tls }

1
libstdc++-v3/testsuite/experimental/algorithm/shuffle.cc
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@ -1,4 +1,5 @@
// { dg-do run { target c++14 } }
// { dg-require-effective-target random_device }
// { dg-require-effective-target tls_runtime }
// { dg-add-options tls }

1
libstdc++-v3/testsuite/experimental/random/randint.cc
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@ -1,4 +1,5 @@
// { dg-do run { target c++14 } }
// { dg-require-effective-target random_device }
// { dg-require-effective-target tls_runtime }
// { dg-add-options tls }

28
libstdc++-v3/testsuite/lib/libstdc++.exp
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@ -2061,6 +2061,34 @@ proc check_effective_target_cxx11-abi { } {
return 0
}
# Return 1 if std::random_device should be usable using the current flags, 0 otherwise.
proc check_effective_target_random_device { } {
global cxxflags
# Set up and preprocess a C++ test program that depends
# on std::random_device being usable.
set src random_device[pid].cc
set f [open $src "w"]
puts $f "#include <bits/c++config.h>"
puts $f "#if ! _GLIBCXX_USE_RANDOM_TR1"
puts $f "# error No working std::random_device available"
puts $f "#endif"
close $f
set lines [v3_target_compile $src /dev/null preprocess ""]
file delete $src
if [string match "" $lines] {
# No error message, preprocessing succeeded.
verbose "check_v3_random_device: `1'" 2
return 1
}
verbose "check_v3_random_device: `0'" 2
return 0
}
set additional_prunes ""
if { [info exists env(GCC_RUNTEST_PARALLELIZE_DIR)] \