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smallest_atomic_fetch_exch_size

atomics.smallest_atomic_fetch_exch_size

const smallest_atomic_fetch_exch_size = switch (arch)

File

lib/compiler_rt/atomics.zig:44

Code

const smallest_atomic_fetch_exch_size = switch (arch) {
    // On AMDGCN, there are no instructions for atomic operations other than load and store
    // (as of LLVM 15), and so these need to be implemented in terms of atomic CAS.
    .amdgcn => @sizeOf(u32),
    else => @sizeOf(u8),
}