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[nfc][tsan] Simplify morder conversion #115075

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Nov 5, 2024
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[nfc][tsan] Simplify morder conversion #115075

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4 changes: 3 additions & 1 deletion compiler-rt/lib/tsan/rtl/tsan_interface_atomic.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -515,7 +515,9 @@ static morder to_morder(int mo) {
// since we use __sync_ atomics for actual atomic operations,
// we can safely ignore it as well. It also subtly affects semantics,
// but we don't model the difference.
return static_cast<morder>(mo & 0x7fff);
morder res = static_cast<morder>(static_cast<u8>(mo));
DCHECK_LE(res, mo_seq_cst);
return res;
}

# define ATOMIC_IMPL(func, mo, ...) \
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