PowerpcCpuinfoImpl

const PowerpcCpuinfoImpl = struct {
    model: ?*const Target.Cpu.Model = null,

    const cpu_names = .{
        .{ "604e", &Target.powerpc.cpu.@"604e" },
        .{ "604", &Target.powerpc.cpu.@"604" },
        .{ "7400", &Target.powerpc.cpu.@"7400" },
        .{ "7410", &Target.powerpc.cpu.@"7400" },
        .{ "7447", &Target.powerpc.cpu.@"7400" },
        .{ "7455", &Target.powerpc.cpu.@"7450" },
        .{ "G4", &Target.powerpc.cpu.g4 },
        .{ "POWER4", &Target.powerpc.cpu.@"970" },
        .{ "PPC970FX", &Target.powerpc.cpu.@"970" },
        .{ "PPC970MP", &Target.powerpc.cpu.@"970" },
        .{ "G5", &Target.powerpc.cpu.g5 },
        .{ "POWER5", &Target.powerpc.cpu.g5 },
        .{ "A2", &Target.powerpc.cpu.a2 },
        .{ "POWER6", &Target.powerpc.cpu.pwr6 },
        .{ "POWER7", &Target.powerpc.cpu.pwr7 },
        .{ "POWER8", &Target.powerpc.cpu.pwr8 },
        .{ "POWER8E", &Target.powerpc.cpu.pwr8 },
        .{ "POWER8NVL", &Target.powerpc.cpu.pwr8 },
        .{ "POWER9", &Target.powerpc.cpu.pwr9 },
        .{ "POWER10", &Target.powerpc.cpu.pwr10 },
        .{ "POWER11", &Target.powerpc.cpu.pwr11 },
    };

    fn line_hook(self: *PowerpcCpuinfoImpl, key: []const u8, value: []const u8) !bool {
        if (mem.eql(u8, key, "cpu")) {
            // The model name is often followed by a comma or space and extra
            // info.
            inline for (cpu_names) |pair| {
                const end_index = mem.findAny(u8, value, ", ") orelse value.len;
                if (mem.eql(u8, value[0..end_index], pair[0])) {
                    self.model = pair[1];
                    break;
                }
            }

            // Stop the detection once we've seen the first core.
            return false;
        }

        return true;
    }

    fn finalize(self: *const PowerpcCpuinfoImpl, arch: Target.Cpu.Arch) ?Target.Cpu {
        const model = self.model orelse return null;
        return Target.Cpu{
            .arch = arch,
            .model = model,
            .features = model.features,
        };
    }
}