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svn:author
V 3
dim
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svn:date
V 27
2020-04-25T12:50:21.532081Z
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svn:log
V 266
MFC r342022 (by imp):

Correctly implemenet atomic_swap_long for mips64.

MIPS64 has 64-bit longs, so use uint64_t for it, otherwise uint32_t.
sizeof(long) == sizeof(ptr) for all platforms, so define
atomic_swap_ptr in terms of atomic_swap_long.

Submitted by: hps@

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