| // RUN: %target-swift-frontend -emit-sil %s | %FileCheck %s |
| |
| import _Differentiation |
| |
| protocol NumericDifferentiable : Numeric, Differentiable {} |
| extension Float: NumericDifferentiable {} |
| |
| func foo<T: Numeric>(_ x: T, _ y: T) -> T { x * y } |
| |
| @derivative(of: foo) |
| func foo_vjp<T: NumericDifferentiable>(_ x: T, _ y: T) -> ( |
| value: T, pullback: (T.TangentVector) -> (T.TangentVector, T.TangentVector) |
| ) { |
| (foo(x, y), { _ in (.zero, .zero) }) |
| } |
| |
| @differentiable |
| func differentiate_foo_wrt_0(_ x: Float) -> Float { |
| foo(x, 1) |
| } |
| |
| // CHECK-LABEL: sil hidden @{{.*}}differentiate_foo_wrt_0{{.*}}__vjp_src_0_wrt_0 : $@convention(thin) (Float) -> (Float, @owned @callee_guaranteed (Float) -> Float) { |
| // CHECK: bb0 |
| // CHECK: [[FOO_ORIG:%.*]] = function_ref @{{.*}}foo{{.*}} : $@convention(thin) <τ_0_0 where τ_0_0 : Numeric> (@in_guaranteed τ_0_0, @in_guaranteed τ_0_0) -> @out τ_0_0 |
| // CHECK: [[FOO_FLOAT:%.*]] = partial_apply [callee_guaranteed] [[FOO_ORIG]]<Float>() : $@convention(thin) <τ_0_0 where τ_0_0 : Numeric> (@in_guaranteed τ_0_0, @in_guaranteed τ_0_0) -> @out τ_0_0 |
| // CHECK: [[FOO_JVP:%.*]] = differentiability_witness_function [jvp] [parameters 0 1] [results 0] <T where T : NumericDifferentiable> @{{.*}}foo{{.*}} : $@convention(thin) <T where T : Numeric> (@in_guaranteed T, @in_guaranteed T) -> @out T |
| // CHECK: [[FOO_JVP_FLOAT:%.*]] = partial_apply [callee_guaranteed] [[FOO_JVP]]<Float>() : $@convention(thin) <τ_0_0 where τ_0_0 : NumericDifferentiable> (@in_guaranteed τ_0_0, @in_guaranteed τ_0_0) -> (@out τ_0_0, @owned @callee_guaranteed @substituted <τ_0_0, τ_0_1, τ_0_2> (@in_guaranteed τ_0_0, @in_guaranteed τ_0_1) -> @out τ_0_2 for <τ_0_0.TangentVector, τ_0_0.TangentVector, τ_0_0.TangentVector>) |
| // CHECK: [[FOO_JVP_SUBSET_THUNK_THIN:%.*]] = function_ref @AD__orig_{{.*}}foo{{.*}}_src_0_wrt_0_jvp_subset_parameters_thunk : $@convention(thin) (@in_guaranteed Float, @in_guaranteed Float) -> (@out Float, @owned @callee_guaranteed (@in_guaranteed Float) -> @out Float) |
| // CHECK: [[FOO_JVP_SUBSET_THUNK:%.*]] = thin_to_thick_function [[FOO_JVP_SUBSET_THUNK_THIN]] : $@convention(thin) (@in_guaranteed Float, @in_guaranteed Float) -> (@out Float, @owned @callee_guaranteed (@in_guaranteed Float) -> @out Float) to $@callee_guaranteed (@in_guaranteed Float, @in_guaranteed Float) -> (@out Float, @owned @callee_guaranteed (@in_guaranteed Float) -> @out Float) |
| // CHECK: [[FOO_VJP:%.*]] = differentiability_witness_function [vjp] [parameters 0 1] [results 0] <T where T : NumericDifferentiable> @{{.*}}foo{{.*}} : $@convention(thin) <T where T : Numeric> (@in_guaranteed T, @in_guaranteed T) -> @out T |
| // CHECK: [[FOO_VJP_FLOAT:%.*]] = partial_apply [callee_guaranteed] [[FOO_VJP]]<Float>() : $@convention(thin) <τ_0_0 where τ_0_0 : NumericDifferentiable> (@in_guaranteed τ_0_0, @in_guaranteed τ_0_0) -> (@out τ_0_0, @owned @callee_guaranteed @substituted <τ_0_0, τ_0_1, τ_0_2> (@in_guaranteed τ_0_0) -> (@out τ_0_1, @out τ_0_2) for <τ_0_0.TangentVector, τ_0_0.TangentVector, τ_0_0.TangentVector>) |
| // CHECK: [[FOO_VJP_SUBSET_THUNK_THIN:%.*]] = function_ref @AD__orig_{{.*}}foo{{.*}}_src_0_wrt_0_vjp_subset_parameters_thunk : $@convention(thin) (@in_guaranteed Float, @in_guaranteed Float) -> (@out Float, @owned @callee_guaranteed (@in_guaranteed Float) -> @out Float) |
| // CHECK: [[FOO_VJP_SUBSET_THUNK:%.*]] = thin_to_thick_function [[FOO_VJP_SUBSET_THUNK_THIN]] : $@convention(thin) (@in_guaranteed Float, @in_guaranteed Float) -> (@out Float, @owned @callee_guaranteed (@in_guaranteed Float) -> @out Float) to $@callee_guaranteed (@in_guaranteed Float, @in_guaranteed Float) -> (@out Float, @owned @callee_guaranteed (@in_guaranteed Float) -> @out Float) |
| // CHECK: [[FOO_DIFF:%.*]] = differentiable_function [parameters 0] [results 0] [[FOO_FLOAT]] : $@callee_guaranteed (@in_guaranteed Float, @in_guaranteed Float) -> @out Float with_derivative {[[FOO_JVP_SUBSET_THUNK]] : $@callee_guaranteed (@in_guaranteed Float, @in_guaranteed Float) -> (@out Float, @owned @callee_guaranteed (@in_guaranteed Float) -> @out Float), [[FOO_VJP_SUBSET_THUNK]] : $@callee_guaranteed (@in_guaranteed Float, @in_guaranteed Float) -> (@out Float, @owned @callee_guaranteed (@in_guaranteed Float) -> @out Float)} |
| // CHECK: } |
| |
| func inoutIndirect<T: Differentiable, U: Differentiable, V: Differentiable>( |
| _ x: T, _ y: inout U, _ z: V |
| ) {} |
| |
| @derivative(of: inoutIndirect) |
| func vjpInoutIndirect<T: Differentiable, U: Differentiable, V: Differentiable>( |
| _ x: T, _ y: inout U, _ z: V |
| ) -> ( |
| value: Void, pullback: (inout U.TangentVector) -> (T.TangentVector, V.TangentVector) |
| ) { |
| return ((), { dy in |
| return (.zero, .zero) |
| }) |
| } |
| |
| @differentiable(wrt: x) |
| @differentiable(wrt: y) |
| @differentiable |
| func inoutIndirectCaller<T: Differentiable, U: Differentiable, V: Differentiable>( |
| _ x: T, _ y: U, _ z: V |
| ) -> U { |
| var result = y |
| inoutIndirect(x, &result, z) |
| return result |
| } |
| |
| @differentiable(wrt: (x, z)) |
| func concreteInoutIndirectCaller( |
| _ x: Float, _ y: Double, _ z: Float |
| ) -> Double { |
| return inoutIndirectCaller(x, y, z) |
| } |
| |
| // CHECK-LABEL: sil shared [transparent] [serialized] [thunk] @AD__{{.*}}src_0_wrt_0_2_pullback_index_subset_thunk : $@convention(thin) (@in_guaranteed Double, @guaranteed @callee_guaranteed (@in_guaranteed Double) -> (@out Float, @out Double, @out Float)) -> (@out Float, @out Float) { |
| // CHECK: bb0(%0 : $*Float, %1 : $*Float, %2 : $*Double, %3 : $@callee_guaranteed (@in_guaranteed Double) -> (@out Float, @out Double, @out Float)): |
| // CHECK: %4 = alloc_stack $Double |
| // CHECK: %5 = apply %3(%0, %4, %1, %2) : $@callee_guaranteed (@in_guaranteed Double) -> (@out Float, @out Double, @out Float) |
| // CHECK: destroy_addr %4 : $*Double |
| // CHECK: dealloc_stack %4 : $*Double |
| // CHECK: %8 = tuple () |
| // CHECK: return %8 : $() |
| // CHECK: } |
| |
| // CHECK-LABEL: sil shared [transparent] [serialized] [thunk] @AD__{{.*}}src_0_wrt_0_1_pullback_index_subset_thunk : $@convention(thin) <τ_0_0, τ_0_1, τ_0_2 where τ_0_0 : Differentiable, τ_0_1 : Differentiable, τ_0_2 : Differentiable> (@inout τ_0_1.TangentVector, @guaranteed @callee_guaranteed (@inout τ_0_1.TangentVector) -> (@out τ_0_0.TangentVector, @out τ_0_2.TangentVector)) -> @out τ_0_0.TangentVector { |
| // CHECK: bb0(%0 : $*τ_0_0.TangentVector, %1 : $*τ_0_1.TangentVector, %2 : $@callee_guaranteed (@inout τ_0_1.TangentVector) -> (@out τ_0_0.TangentVector, @out τ_0_2.TangentVector)): |
| // CHECK: %3 = alloc_stack $τ_0_2.TangentVector |
| // CHECK: %4 = apply %2(%0, %3, %1) : $@callee_guaranteed (@inout τ_0_1.TangentVector) -> (@out τ_0_0.TangentVector, @out τ_0_2.TangentVector) |
| // CHECK: destroy_addr %3 : $*τ_0_2.TangentVector |
| // CHECK: dealloc_stack %3 : $*τ_0_2.TangentVector |
| // CHECK: %7 = tuple () |
| // CHECK: return %7 : $() |
| // CHECK: } |
| |
| // CHECK-LABEL: sil shared [transparent] [serialized] [thunk] @AD__{{.*}}src_0_wrt_1_pullback_index_subset_thunk : $@convention(thin) <τ_0_0, τ_0_1, τ_0_2 where τ_0_0 : Differentiable, τ_0_1 : Differentiable, τ_0_2 : Differentiable> (@inout τ_0_1.TangentVector, @guaranteed @callee_guaranteed (@inout τ_0_1.TangentVector) -> (@out τ_0_0.TangentVector, @out τ_0_2.TangentVector)) -> () { |
| // CHECK: bb0(%0 : $*τ_0_1.TangentVector, %1 : $@callee_guaranteed (@inout τ_0_1.TangentVector) -> (@out τ_0_0.TangentVector, @out τ_0_2.TangentVector)): |
| // CHECK: %2 = alloc_stack $τ_0_0.TangentVector |
| // CHECK: %3 = alloc_stack $τ_0_2.TangentVector |
| // CHECK: %4 = apply %1(%2, %3, %0) : $@callee_guaranteed (@inout τ_0_1.TangentVector) -> (@out τ_0_0.TangentVector, @out τ_0_2.TangentVector) |
| // CHECK: destroy_addr %2 : $*τ_0_0.TangentVector |
| // CHECK: destroy_addr %3 : $*τ_0_2.TangentVector |
| // CHECK: dealloc_stack %3 : $*τ_0_2.TangentVector |
| // CHECK: dealloc_stack %2 : $*τ_0_0.TangentVector |
| // CHECK: %9 = tuple () |
| // CHECK: return %9 : $() |
| // CHECK: } |