Tim Northover 214c37d181 ARM: don't expand atomicrmw inline on Cortex-M0
There's a barrier instruction so that should still be used, but most actual
atomic operations are going to need a platform decision on the correct
behaviour (either nop if single-threaded or OS-support otherwise).

rdar://problem/15287210

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193399 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-25 09:30:24 +00:00
..
2013-08-22 20:46:05 +00:00
2013-10-23 17:57:04 +00:00