Zig 0.17.0-dev (Split by item)

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supports_atomic_ops

atomics.supports_atomic_ops

const supports_atomic_ops = switch (arch)

File

lib/compiler_rt/atomics.zig:15

Code

const supports_atomic_ops = switch (arch) {
    .msp430, .avr, .bpfel, .bpfeb => false,
    .arm, .armeb, .thumb, .thumbeb =>
    // The ARM v6m ISA has no ldrex/strex and so it's impossible to do CAS
    // operations (unless we're targeting Linux, the kernel provides a way to
    // perform CAS operations).
    // XXX: The Linux code path is not implemented yet.
    !builtin.cpu.has(.arm, .has_v6m),
    else => true,
}