Module: Kumi::Core::Analyzer::Binder

Defined in:
lib/kumi/core/analyzer/binder.rb

Constant Summary collapse

OPS_WITH_KERNELS = 
i[KernelCall Accumulate Fold].freeze

Class Method Summary collapse

Class Method Details

.bind(lir_decls, registry, target:) ⇒ Object 



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# File 'lib/kumi/core/analyzer/binder.rb', line 14

def bind(lir_decls, registry, target:)
  bindings = []
  target_sym = target.to_sym

  lir_decls.each do |decl_name, decl|
    Array(decl[:operations]).each do |op|
      opcode = op.opcode
      next unless OPS_WITH_KERNELS.include?(opcode)

      fn_name = op.attributes[:fn]
      raise "KernelCall at #{op.location} is missing :fn attribute" unless fn_name

      function = registry.function(fn_name)
      fn_id = function.id

      kernel = registry.kernel_for(fn_id, target: target_sym)
      id = kernel.id
      impl = kernel.impl
      inline = kernel.inline
      fold_inline = kernel.fold_inline
      dtype = op.stamp&.dig("dtype")

      attrs = {}

      attrs["inline"] = inline if inline
      attrs["fold_inline"] = fold_inline if fold_inline

      # TODO: Make this logic clear, we are mixing reducers functions that works over scalars collections and eachwise, this is confusing.
      if function.reduce? && opcode != :Fold
        case function.reduction_strategy
        when :identity

          identity = registry.kernel_identity_for(fn_id, dtype: dtype, target: target_sym)
          attrs["identity"] = identity if identity
        when :first_element
          attrs["first_element"] = true
        end
      end

      fname = fn_id.split(".").join("_")

      bindings << {
        "decl" => decl_name.to_s,
        "op_result_reg" => op.result_register,
        "fn" => fn_name, # Original function name/alias
        "fn_id" => fn_id, # Resolved canonical function ID
        "fname" => fname, # Sanitized function name for use in Ruby method names
        "id" => id,
        "impl" => impl,
        "attrs" => attrs
      }
    end
  end

  deduplicated = deduplicate_kernel_impls(bindings)

  {
    "lir_ref" => sha256_lir_ref(lir_decls),
    "target" => target.to_s,
    "registry_ref" => registry.registry_ref,
    "bindings" => deduplicated[:bindings],
    "kernels" => deduplicated[:kernels]
  }
end

.deduplicate_kernel_impls(bindings) ⇒ Object 



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# File 'lib/kumi/core/analyzer/binder.rb', line 79

def deduplicate_kernel_impls(bindings)
  kernels = {}
  deduplicated_bindings = []

  bindings.each do |binding|
    id = binding["id"]
    impl = binding["impl"]
    attrs = binding["attrs"]

    if kernels.key?(id)
      raise "Inconsistent impl for #{id}" unless kernels[id]["impl"] == impl

      kernels[id]["attrs"].merge!(attrs)
    else
      kernels[id] = {
        "id" => id,
        "fn_id" => binding["fn_id"],
        "impl" => impl,
        "attrs" => attrs
      }
    end

    deduplicated_bindings << binding.reject { |k, _| %w[impl attrs].include?(k) }
  end

  {
    bindings: deduplicated_bindings,
    kernels: kernels.values
  }
end

.sha256_lir_ref(lir_decls) ⇒ Object 



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# File 'lib/kumi/core/analyzer/binder.rb', line 110

def sha256_lir_ref(lir_decls)
  canonical_decls = lir_decls.transform_values do |decl|
    decl[:operations].map(&:to_h)
  end

  json = JSON.generate(canonical_decls, { ascii_only: true, array_nl: "", object_nl: "", indent: "", space: "", space_before: "" })
  "sha256:#{Digest::SHA256.hexdigest(json)}"
end