Function supportsAddressSpace [src]

Returns whether this architecture supports address_space. If context is null, this function simply answers the general question of whether the architecture has any concept of address_space; if non-null, the function additionally checks whether address_space is valid in that context.

Prototype

 pub fn supportsAddressSpace( cpu: Cpu, address_space: std.builtin.AddressSpace, context: ?std.builtin.AddressSpace.Context, ) bool

Parameters

cpu: Cpuaddress_space: std.builtin.AddressSpacecontext: ?std.builtin.AddressSpace.Context

Source

  pub fn supportsAddressSpace(
    cpu: Cpu,
    address_space: std.builtin.AddressSpace,
    context: ?std.builtin.AddressSpace.Context,
) bool {
    const arch = cpu.arch;

    const is_nvptx = arch.isNvptx();
    const is_spirv = arch.isSpirV();
    const is_gpu = is_nvptx or is_spirv or arch == .amdgcn;

    return switch (address_space) {
        .generic => true,
        .fs, .gs, .ss => (arch == .x86_64 or arch == .x86) and (context == null or context == .pointer),
        .flash, .flash1, .flash2, .flash3, .flash4, .flash5 => arch == .avr, // TODO this should also check how many flash banks the cpu has
        .cog, .hub => arch == .propeller,
        .lut => arch == .propeller and std.Target.propeller.featureSetHas(cpu.features, .p2),

        .global, .local, .shared => is_gpu,
        .constant => is_gpu and (context == null or context == .constant),
        .param => is_nvptx,
        .input, .output, .uniform, .push_constant, .storage_buffer => is_spirv,
    };
}  