test/AutoDiff/downstream/sil_differentiability_witness_reference_serialization.sil

// RUN: %empty-directory(%t)
// RUN: %target-swift-frontend -emit-module -emit-module-path %t/test.swiftmodule -module-name test %s
// RUN: %target-sil-opt %t/test.swiftmodule

sil_stage raw

import Swift
import Builtin

sil_differentiability_witness [parameters 0] [results 0] @referenced_from_serialized : $@convention(thin) (Float, Float, Float) -> Float

sil @referenced_from_serialized : $@convention(thin) (Float, Float, Float) -> Float

sil [serialized] @test_serialized : $@convention(thin) () -> () {
bb0:
  %referenced_from_serialized_jvp_wrt_0 = differentiability_witness_function [jvp] [parameters 0] [results 0] @referenced_from_serialized : $@convention(thin) (Float, Float, Float) -> Float
  return undef : $()
}