| // RUN: %empty-directory(%t) |
| // RUN: %target-swift-frontend -emit-module -primary-file %S/Inputs/nondifferentiable_function_other_module.swift -emit-module-path %t/nondifferentiable_function_other_module.swiftmodule |
| // RUN: %target-swift-frontend -emit-sil -I %t -primary-file %s -verify |
| |
| import nondifferentiable_function_other_module |
| |
| func test() { |
| // expected-error @+2 {{function is not differentiable}} |
| // expected-note @+1 {{cannot differentiate functions that have not been marked '@differentiable' and that are defined in other files}} |
| _ = gradient(at: Float(1), in: externalFunction) |
| } |
