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Fix recent regression in __atomic_add_dispatch

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* include/ext/atomicity.h (__exchange_and_add, __atomic_add): Replace
	throw() with _GLIBCXX_NOTHROW.
	(__atomic_add_dispatch): Return after performing atomic increment.

From-SVN: r273167
This commit is contained in:
Jonathan Wakely 2019-07-06 22:16:38 +01:00 committed by Jonathan Wakely
parent ef2df51671
commit a10b664eb7
2 changed files with 12 additions and 3 deletions
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6
libstdc++-v3/ChangeLog
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@ -1,3 +1,9 @@
2019-07-06 Jonathan Wakely <jwakely@redhat.com>
* include/ext/atomicity.h (__exchange_and_add, __atomic_add): Replace
throw() with _GLIBCXX_NOTHROW.
(__atomic_add_dispatch): Return after performing atomic increment.
2019-07-05 Jonathan Wakely <jwakely@redhat.com>
* include/ext/atomicity.h [_GLIBCXX_ATOMIC_BUILTINS] (__atomic_add)

9
libstdc++-v3/include/ext/atomicity.h
View File

@ -55,10 +55,10 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
{ __atomic_fetch_add(__mem, __val, __ATOMIC_ACQ_REL); }
#else
_Atomic_word
__exchange_and_add(volatile _Atomic_word*, int) throw ();
__exchange_and_add(volatile _Atomic_word*, int) _GLIBCXX_NOTHROW;
void
__atomic_add(volatile _Atomic_word*, int) throw ();
__atomic_add(volatile _Atomic_word*, int) _GLIBCXX_NOTHROW;
#endif
inline _Atomic_word
@ -92,7 +92,10 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
{
#ifdef __GTHREADS
if (__gthread_active_p())
__atomic_add(__mem, __val);
{
__atomic_add(__mem, __val);
return;
}
#endif
__atomic_add_single(__mem, __val);
}