| // RUN: not --crash %target-swift-frontend -emit-sil %s 2>&1 | |
| // REQUIRES: asserts | |
| // NOTE: Remove `not --crash` from RUN line when TF-123 is fixed. | |
| // FIXME(TF-123): `@differentiable` function thunking with opaque | |
| // abstraction patterns. | |
| func blackHole(_ x: Any) {} | |
| let f: @differentiable (Float) -> Float = { $0 } | |
| blackHole(f) | |
| // FIXME(TF-123): `@differentiable` function thunking with opaque | |
| // abstraction patterns. | |
| struct TF_123 { | |
| var f: @differentiable (Float) -> Float | |
| } | |
| _ = \TF_123.f |