| // RUN: %target-build-swift %s |
| // REQUIRES: asserts |
| |
| // SR-13933: Fix "multiple consuming users" ownership error caused by |
| // `VJPCloner::visitApply` related to `@differentiable`-function-typed callees. |
| |
| import _Differentiation |
| |
| protocol P: Differentiable { |
| associatedtype Assoc: Differentiable |
| } |
| |
| struct S<T: P> { |
| var fn: @differentiable (T.Assoc, T.Assoc) -> Float |
| |
| func method(y: T.Assoc) { |
| _ = gradient(at: y) { y in return self.fn(y, y) } |
| } |
| } |
| |
| // Original error: |
| // Begin Error in Function: 'AD__$s4main1SV6method1yy5AssocQz_tFSfAGcfU___vjp_src_0_wrt_0_4main1PRzl' |
| // Found over consume?! |
| // Value: %5 = copy_value %4 : $@differentiable @callee_guaranteed @substituted <τ_0_0, τ_0_1> (@in_guaranteed τ_0_0, @in_guaranteed τ_0_1) -> Float for <τ_0_0.Assoc, τ_0_0.Assoc> // users: %19, %6 |
| // User: %6 = convert_function %5 : $@differentiable @callee_guaranteed @substituted <τ_0_0, τ_0_1> (@in_guaranteed τ_0_0, @in_guaranteed τ_0_1) -> Float for <τ_0_0.Assoc, τ_0_0.Assoc> to $@differentiable @callee_guaranteed (@in_guaranteed τ_0_0.Assoc, @in_guaranteed τ_0_0.Assoc) -> Float // user: %7 |
| // Block: bb0 |
| // Consuming Users: |
| // destroy_value %5 : $@differentiable @callee_guaranteed @substituted <τ_0_0, τ_0_1> (@in_guaranteed τ_0_0, @in_guaranteed τ_0_1) -> Float for <τ_0_0.Assoc, τ_0_0.Assoc> // id: %19 |
| // %6 = convert_function %5 : $@differentiable @callee_guaranteed @substituted <τ_0_0, τ_0_1> (@in_guaranteed τ_0_0, @in_guaranteed τ_0_1) -> Float for <τ_0_0.Assoc, τ_0_0.Assoc> to $@differentiable @callee_guaranteed (@in_guaranteed τ_0_0.Assoc, @in_guaranteed τ_0_0.Assoc) -> Float // user: %7 |
