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4 Commits

Author SHA1 Message Date
Richard Henderson
672ce9397b re PR c++/60272 (atomic<>::compare_exchange_weak has spurious store and can cause race conditions) 
PR c++/60272

gcc/
	* builtins.c (expand_builtin_atomic_compare_exchange): Conditionalize
	on failure the store back into EXPECT.
libatomic/
	* cas_n.c (libat_compare_exchange): Conditionalize on failure
	the store back to EPTR.

From-SVN: r207966
 2014-02-20 09:43:53 -08:00
Richard Sandiford
3e6a2e378c Update copyright years in libatomic/ 
From-SVN: r206291
 2014-01-02 22:24:30 +00:00
Richard Sandiford
69b2c4233b Update copyright years in libatomic. 
From-SVN: r195164
 2013-01-14 18:16:23 +00:00
Richard Henderson
483104922a Add libatomic as a target library. 
From-SVN: r187018
 2012-05-01 08:48:28 -07:00