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from 81346e4b42d 2017-08-27 Jerry DeLisle jvdelisle@gcc.gnu.org new 06cd0655a68 optabs: ensure mem_thread_fence is a compiler barrier
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Summary of changes: gcc/ChangeLog | 7 +++++++ gcc/doc/md.texi | 16 +++++++++++----- gcc/optabs.c | 18 ++++++++++-------- gcc/testsuite/ChangeLog | 5 +++++ gcc/testsuite/gcc.dg/atomic/pr80640.c | 34 ++++++++++++++++++++++++++++++++++ 5 files changed, 67 insertions(+), 13 deletions(-) create mode 100644 gcc/testsuite/gcc.dg/atomic/pr80640.c