| // RUN: %target-swift-frontend -enable-resilience -emit-sil -verify %s |
| // REQUIRES: asserts |
| |
| // SR-12641: SILGen verification error regarding `ImmutableAddressUseVerifier` and AutoDiff-generated code. |
| |
| import _Differentiation |
| |
| public struct Resilient: Differentiable { |
| var x: Float |
| } |
| |
| public class Class: Differentiable { |
| var x: Resilient |
| init(_ x: Resilient) { |
| self.x = x |
| } |
| } |
| |
| public func f(_ c: Class) -> Resilient { |
| return Resilient(x: 0) |
| } |
| |
| _ = pullback(at: Class(Resilient(x: 10)), in: f) |
| |
| // swift/lib/SIL/Verifier/SILVerifier.cpp:456: bool (anonymous namespace)::ImmutableAddressUseVerifier::isConsumingOrMutatingArgumentConvention(swift::SILArgumentConvention): Assertion `conv.isIndirectConvention() && "Expect an indirect convention"' failed. |
| // Stack dump: |
| // ... |
| // 1. Swift version 5.3-dev (LLVM be43a34c3c, Swift 6d5b2f5220) |
| // 2. While evaluating request SILGenWholeModuleRequest(SIL Generation for module main) |
| // 3. While verifying SIL function "@$s4main5ClassC13TangentVectorVAA9ResilientVADVIeggr_AeHIegnr_TR". |
| // ... |
| // #8 0x00000000011e7a3e (anonymous namespace)::ImmutableAddressUseVerifier::isConsumingOrMutatingApplyUse(swift::Operand*) |
| // #9 0x00000000011e6add (anonymous namespace)::ImmutableAddressUseVerifier::isMutatingOrConsuming(swift::SILValue) |
| // #10 0x00000000011ce0b4 (anonymous namespace)::SILVerifier::visitSILBasicBlock(swift::SILBasicBlock*) |
| |
| // Related crasher discovered while fixing SR-12641. |
| |
| class LoadableOriginal<T: Differentiable>: Differentiable { |
| var x: T |
| init(_ x: T) { self.x = x } |
| } |
| |
| @differentiable |
| func loadableOriginal<T: AdditiveArithmetic>(_ loadable: LoadableOriginal<T>) -> T { |
| return T.zero |
| } |
| |
| // swift/include/swift/SIL/TypeLowering.h:845: swift::SILType swift::Lowering::TypeConverter::getLoweredLoadableType(swift::Type, swift::TypeExpansionContext, swift::SILModule &): Assertion `(ti.isLoadable() || !SILModuleConventions(M).useLoweredAddresses()) && "unexpected address-only type"' failed. |
| // Stack dump: |
| // ... |
| // 2. While evaluating request ExecuteSILPipelineRequest(Run pipelines { Guaranteed Passes } on SIL for main.main) |
| // 3. While running pass #153 SILModuleTransform "Differentiation". |
| // 4. While processing // differentiability witness for loadableOriginal<A>(_:) |
| // sil_differentiability_witness hidden [parameters 0] [results 0] <T where T : AdditiveArithmetic, T : Differentiable> @$s4main16loadableOriginalyxAA08LoadableC0CyxGs18AdditiveArithmeticRz16_Differentiation14DifferentiableRzlF : $@convention(thin) <T where T : Additive |
| // Arithmetic, T : Differentiable> (@guaranteed LoadableOriginal<T>) -> @out T { |
| // } |
| // |
| // on SIL function "@$s4main16loadableOriginalyxAA08LoadableC0CyxGs18AdditiveArithmeticRz16_Differentiation14DifferentiableRzlF". |
| // for 'loadableOriginal(_:)' |
| // 5. While generating VJP for SIL function "@$s4main16loadableOriginalyxAA08LoadableC0CyxGs18AdditiveArithmeticRz16_Differentiation14DifferentiableRzlF". |
| // for 'loadableOriginal(_:)' |
| // 6. While generating pullback for SIL function "@$s4main16loadableOriginalyxAA08LoadableC0CyxGs18AdditiveArithmeticRz16_Differentiation14DifferentiableRzlF". |
| // for 'loadableOriginal(_:)' |
| // ... |
| // #9 0x0000000000f83fbb swift::autodiff::PullbackEmitter::emitZeroDirect(swift::CanType, swift::SILLocation) |
| // #10 0x0000000000f8248b swift::autodiff::PullbackEmitter::emitZeroDerivativesForNonvariedResult(swift::SILValue) |
| // #11 0x0000000000f7fcae swift::autodiff::PullbackEmitter::run() |
| // #12 0x0000000000f3fba4 swift::autodiff::VJPEmitter::run() |
| // #13 0x0000000000eb1669 (anonymous namespace)::DifferentiationTransformer::canonicalizeDifferentiabilityWitness(swift::SILFunction*, swift::SILDifferentiabilityWitness*, swift::autodiff::DifferentiationInvoker, swift::IsSerialized_t) |
| // #14 0x0000000000eaea5e (anonymous namespace)::Differentiation::run() |
