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Pass -requirement-machine-protocol-signatures=off in three tests
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‎test/Generics/derived_via_concrete_in_protocol.swift

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// RUN: %target-typecheck-verify-swift -requirement-machine-protocol-signatures=off
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// RUN: %target-swift-frontend -debug-generic-signatures -typecheck %s -requirement-machine-protocol-signatures=off 2>&1 | %FileCheck %s
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// FIXME: Implement concrete contraction for the Requirement Machine's
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// RequirementSignatureRequest to get this to pass without turning off
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// -requirement-machine-protocol-signatures.
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protocol P24 {
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associatedtype C: P20
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}
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protocol P20 { }
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struct X24<T: P20> : P24 {
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typealias C = T
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}
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protocol P26 {
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associatedtype C: X3
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}
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struct X26<T: X3> : P26 {
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typealias C = T
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}
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class X3 { }
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// CHECK-LABEL: .P25a@
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// CHECK-NEXT: Requirement signature: <Self where Self.[P25a]A == X24<Self.[P25a]B>, Self.[P25a]B : P20>
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// CHECK-NEXT: Canonical requirement signature: <τ_0_0 where τ_0_0.[P25a]A == X24<τ_0_0.[P25a]B>, τ_0_0.[P25a]B : P20>
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protocol P25a {
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associatedtype A: P24 // expected-warning{{redundant conformance constraint 'Self.A' : 'P24'}}
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associatedtype B: P20 where A == X24<B> // expected-note{{conformance constraint 'Self.A' : 'P24' implied here}}
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}
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// CHECK-LABEL: .P25b@
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// CHECK-NEXT: Requirement signature: <Self where Self.[P25b]A == X24<Self.[P25b]B>, Self.[P25b]B : P20>
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// CHECK-NEXT: Canonical requirement signature: <τ_0_0 where τ_0_0.[P25b]A == X24<τ_0_0.[P25b]B>, τ_0_0.[P25b]B : P20>
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protocol P25b {
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associatedtype A
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associatedtype B: P20 where A == X24<B>
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}
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// CHECK-LABEL: .P27a@
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// CHECK-NEXT: Requirement signature: <Self where Self.[P27a]A == X26<Self.[P27a]B>, Self.[P27a]B : X3>
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// CHECK-NEXT: Canonical requirement signature: <τ_0_0 where τ_0_0.[P27a]A == X26<τ_0_0.[P27a]B>, τ_0_0.[P27a]B : X3>
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protocol P27a {
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associatedtype A: P26 // expected-warning{{redundant conformance constraint 'Self.A' : 'P26'}}
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associatedtype B: X3 where A == X26<B> // expected-note{{conformance constraint 'Self.A' : 'P26' implied here}}
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}
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// CHECK-LABEL: .P27b@
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// CHECK-NEXT: Requirement signature: <Self where Self.[P27b]A == X26<Self.[P27b]B>, Self.[P27b]B : X3>
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// CHECK-NEXT: Canonical requirement signature: <τ_0_0 where τ_0_0.[P27b]A == X26<τ_0_0.[P27b]B>, τ_0_0.[P27b]B : X3>
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protocol P27b {
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associatedtype A
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associatedtype B: X3 where A == X26<B>
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}

‎test/Generics/requirement_inference.swift

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// RUN: %target-typecheck-verify-swift
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// RUN: %target-typecheck-verify-swift -debug-generic-signatures > %t.dump 2>&1
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// RUN: %target-typecheck-verify-swift -requirement-machine-protocol-signatures=verify
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// RUN: %target-typecheck-verify-swift -debug-generic-signatures > %t.dump -requirement-machine-protocol-signatures=verify 2>&1
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// RUN: %FileCheck %s < %t.dump
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protocol P1 {
@@ -323,22 +323,6 @@ struct X24<T: P20> : P24 {
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typealias C = T
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}
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// CHECK-LABEL: .P25a@
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// CHECK-NEXT: Requirement signature: <Self where Self.[P25a]A == X24<Self.[P25a]B>, Self.[P25a]B : P20>
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// CHECK-NEXT: Canonical requirement signature: <τ_0_0 where τ_0_0.[P25a]A == X24<τ_0_0.[P25a]B>, τ_0_0.[P25a]B : P20>
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protocol P25a {
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associatedtype A: P24 // expected-warning{{redundant conformance constraint 'Self.A' : 'P24'}}
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associatedtype B: P20 where A == X24<B> // expected-note{{conformance constraint 'Self.A' : 'P24' implied here}}
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}
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// CHECK-LABEL: .P25b@
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// CHECK-NEXT: Requirement signature: <Self where Self.[P25b]A == X24<Self.[P25b]B>, Self.[P25b]B : P20>
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// CHECK-NEXT: Canonical requirement signature: <τ_0_0 where τ_0_0.[P25b]A == X24<τ_0_0.[P25b]B>, τ_0_0.[P25b]B : P20>
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protocol P25b {
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associatedtype A
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associatedtype B: P20 where A == X24<B>
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}
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protocol P25c {
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associatedtype A: P24
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associatedtype B where A == X<B> // expected-error{{cannot find type 'X' in scope}}
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associatedtype B where A == X24<B> // expected-error{{type 'Self.B' does not conform to protocol 'P20'}}
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}
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// Similar to the above, but with superclass constraints.
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protocol P26 {
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associatedtype C: X3
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}
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struct X26<T: X3> : P26 {
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typealias C = T
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}
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// CHECK-LABEL: .P27a@
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// CHECK-NEXT: Requirement signature: <Self where Self.[P27a]A == X26<Self.[P27a]B>, Self.[P27a]B : X3>
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// CHECK-NEXT: Canonical requirement signature: <τ_0_0 where τ_0_0.[P27a]A == X26<τ_0_0.[P27a]B>, τ_0_0.[P27a]B : X3>
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protocol P27a {
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associatedtype A: P26 // expected-warning{{redundant conformance constraint 'Self.A' : 'P26'}}
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associatedtype B: X3 where A == X26<B> // expected-note{{conformance constraint 'Self.A' : 'P26' implied here}}
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}
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// CHECK-LABEL: .P27b@
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// CHECK-NEXT: Requirement signature: <Self where Self.[P27b]A == X26<Self.[P27b]B>, Self.[P27b]B : X3>
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// CHECK-NEXT: Canonical requirement signature: <τ_0_0 where τ_0_0.[P27b]A == X26<τ_0_0.[P27b]B>, τ_0_0.[P27b]B : X3>
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protocol P27b {
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associatedtype A
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associatedtype B: X3 where A == X26<B>
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}
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// ----------------------------------------------------------------------------
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// Inference of associated type relationships within a protocol hierarchy
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// ----------------------------------------------------------------------------

‎test/decl/protocol/existential_member_accesses_self_assoctype.swift

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// RUN: %target-typecheck-verify-swift -disable-availability-checking
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// RUN: %target-typecheck-verify-swift -disable-availability-checking -requirement-machine-protocol-signatures=off
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// TODO: Get this to pass with -requirement-machine-protocol-signatures=on.
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//===----------------------------------------------------------------------===//
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// Use of protocols with Self or associated type requirements

‎test/decl/protocol/req/associated_type_inference_fixed_type.swift

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// RUN: %target-typecheck-verify-swift
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// RUN: not %target-swift-frontend -typecheck -dump-type-witness-systems %s 2>&1 | %FileCheck %s
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// RUN: %target-typecheck-verify-swift -requirement-machine-protocol-signatures=off
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// RUN: not %target-swift-frontend -typecheck -dump-type-witness-systems %s -requirement-machine-protocol-signatures=off 2>&1 | %FileCheck %s
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// TODO: Get this to pass with -requirement-machine-protocol-signatures=on.
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protocol P1 where A == Never {
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associatedtype A

‎validation-test/compiler_crashers_2_fixed/rdar56398071.swift

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// RUN: %target-swift-frontend -primary-file %s -emit-ir
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// RUN: %target-swift-frontend -primary-file %s -emit-ir -requirement-machine-protocol-signatures=off
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// TODO: Get this to pass with -requirement-machine-protocol-signatures=on.
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public protocol WrappedSignedInteger: SignedInteger where Stride == Int {
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typealias WrappedInteger = Int

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