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Commit 1683caab authored by Tim Northover's avatar Tim Northover
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ARM: implement __sync_fetch_and_* operations

Since these are primarily useful for deeply embedded targets where code size is
very important, they are each in a separate file making use of infrastructure
in sync-ops.h. This allows a linker to include just the functions that are
actually used.

rdar://problem/14736665

llvm-svn: 202812
parent 442f7848
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