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testsuite: libstdc++ atomic_float/value_init.cc requires libatomic 

atomic_float/value_init.cc requires libatomic for some targets, i.e., when
it tries to perform an atomic operation with a 64 bit floating point
double type on a 32 bit target.  This patch adds AIX and Darwin to the
list of targets that require the libatomic option and adds the option to
the atomic_float/value_init.cc testcase.

libstdc++-v3/ChangeLog:

2020-07-28  David Edelsohn  <dje.gcc@gmail.com>
	    Jonathan Wakely  <jwakely@redhat.com>
	    Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	* testsuite/lib/dg-options.exp (add_options_for_libatomic): Add
	target powerpc-ibm-aix* and powerpc*-*-darwin*.
	* testsuite/29_atomics/atomic_float/value_init.cc: Add options
	for libatomic.
This commit is contained in:
David Edelsohn 2020-07-28 16:22:04 -04:00
parent c8d3f2b6d1
commit 55ede0bb87
2 changed files with 5 additions and 1 deletions
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1
libstdc++-v3/testsuite/29_atomics/atomic_float/value_init.cc
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@ -17,6 +17,7 @@
// { dg-options "-std=gnu++2a" }
// { dg-do run { target c++2a } }
// { dg-add-options libatomic }
#include <atomic>
#include <testsuite_hooks.h>

5
libstdc++-v3/testsuite/lib/dg-options.exp
View File

@ -260,7 +260,10 @@ proc add_options_for_net_ts { flags } {
# Add to FLAGS all the target-specific flags to link to libatomic, if required.
proc add_options_for_libatomic { flags } {
if { [istarget hppa*-*-hpux*] || [istarget riscv*-*-*] } {
if { [istarget hppa*-*-hpux*]
|| [istarget powerpc-ibm-aix*]
|| [istarget powerpc*-*-darwin*]
|| [istarget riscv*-*-*] } {
return "$flags -L../../libatomic/.libs -latomic"
}
return $flags