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swift-mirror/test/Interop/Cxx/operators/member-inline-silgen.swift
Egor Zhdan ae27e884d5 [cxx-interop] Do not crash when calling a subscript with unnamed parameter 
This fixes a crash in SILGen when calling a C++ subscript that has an unnamed parameter from Swift.

The parameters from a C++ `operator[]` get carried over to the synthesized Swift subscript. If the Swift parameter has no name, there is no way to refer to it in SIL. However, the synthesized subscript accessor needs to pass this parameter to C++.

This change makes sure that we give a name to the Swift parameter if there isn't already a name on the C++ side.

rdar://83163841
2024-05-01 12:30:18 +01:00

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// RUN: %target-swift-emit-sil %s -I %S/Inputs -enable-experimental-cxx-interop | %FileCheck %s
import MemberInline
public func sub(_ lhs: inout LoadableIntWrapper, _ rhs: LoadableIntWrapper) -> LoadableIntWrapper { lhs - rhs }
// CHECK: bb0([[SELF:%.*]] : $*LoadableIntWrapper, [[RHS:%.*]] : $LoadableIntWrapper):
// CHECK: [[METATYPE:%.*]] = metatype $@thin LoadableIntWrapper.Type
// CHECK: [[SELFACCESS:%.*]] = begin_access [modify] [static] [[SELF]] : $*LoadableIntWrapper
// CHECK: [[OP:%.*]] = function_ref @$sSo18LoadableIntWrapperV1soiyA2Bz_ABtFZ : $@convention(method) (@inout LoadableIntWrapper, LoadableIntWrapper, @thin LoadableIntWrapper.Type) -> LoadableIntWrapper
// CHECK: apply [[OP]]([[SELFACCESS]], [[RHS]], [[METATYPE]]) : $@convention(method) (@inout LoadableIntWrapper, LoadableIntWrapper, @thin LoadableIntWrapper.Type) -> LoadableIntWrapper
// CHECK: end_access [[SELFACCESS]] : $*LoadableIntWrapper
public func exclaim(_ wrapper: inout LoadableBoolWrapper) -> LoadableBoolWrapper { !wrapper }
// CHECK: bb0([[SELF:%.*]] : $*LoadableBoolWrapper):
// CHECK: [[METATYPE:%.*]] = metatype $@thin LoadableBoolWrapper.Type
// CHECK: [[SELFACCESS:%.*]] = begin_access [modify] [static] [[SELF]] : $*LoadableBoolWrapper
// CHECK: [[OP:%.*]] = function_ref @$sSo19LoadableBoolWrapperV1nopyA2BzFZ : $@convention(method) (@inout LoadableBoolWrapper, @thin LoadableBoolWrapper.Type) -> LoadableBoolWrapper
// CHECK: apply [[OP]]([[SELFACCESS]], [[METATYPE]]) : $@convention(method) (@inout LoadableBoolWrapper, @thin LoadableBoolWrapper.Type) -> LoadableBoolWrapper
// CHECK: end_access [[SELFACCESS]]
public func call(_ wrapper: inout LoadableIntWrapper, _ arg: Int32) -> Int32 { wrapper(arg) }
// CHECK: bb0([[SELF:%.*]] : $*LoadableIntWrapper, [[RHS:%.*]] : $Int32):
// CHECK: [[SELFACCESS:%.*]] = begin_access [modify] [static] [[SELF]] : $*LoadableIntWrapper
// CHECK: [[OP:%.*]] = function_ref [[NAME:@(_ZN18LoadableIntWrapperclEi|\?\?RLoadableIntWrapper@@QEAAHH@Z)]] : $@convention(cxx_method) (Int32, @inout LoadableIntWrapper) -> Int32
// CHECK: apply [[OP]]([[RHS]], [[SELFACCESS]]) : $@convention(cxx_method) (Int32, @inout LoadableIntWrapper) -> Int32
// CHECK: end_access [[SELFACCESS]] : $*LoadableIntWrapper
// CHECK: sil [clang LoadableIntWrapper.callAsFunction] [[NAME]] : $@convention(cxx_method) (Int32, @inout LoadableIntWrapper) -> Int32
public func call(_ wrapper: inout AddressOnlyIntWrapper) -> Int32 { wrapper() }
// CHECK: bb0([[SELF:%.*]] : $*AddressOnlyIntWrapper):
// CHECK: [[SELFACCESS:%.*]] = begin_access [modify] [static] [[SELF]] : $*AddressOnlyIntWrapper
// CHECK: [[OP:%.*]] = function_ref [[NAME:@(_ZN21AddressOnlyIntWrapperclEv|\?\?RAddressOnlyIntWrapper@@QEAAHXZ)]] : $@convention(cxx_method) (@inout AddressOnlyIntWrapper) -> Int32
// CHECK: apply [[OP]]([[SELFACCESS]]) : $@convention(cxx_method) (@inout AddressOnlyIntWrapper) -> Int32
// CHECK: end_access [[SELFACCESS]] : $*AddressOnlyIntWrapper
// CHECK: sil [clang AddressOnlyIntWrapper.callAsFunction] [[NAME]] : $@convention(cxx_method) (@inout AddressOnlyIntWrapper) -> Int32
public func index(_ arr: ReadOnlyIntArray, _ arg: Int32) -> Int32 { arr[arg] }
// CHECK: sil @$s4main5indexys5Int32VSo16ReadOnlyIntArrayV_ADtF : $@convention(thin) (@in_guaranteed ReadOnlyIntArray, Int32) -> Int32 {
// CHECK: bb0([[ARR:%.*]] : $*ReadOnlyIntArray, [[INDEX:%.*]] : $Int32):
// CHECK: [[OP:%.*]] = function_ref [[READCLASSNAME:@(_ZNK16ReadOnlyIntArrayixEi|\?\?AReadOnlyIntArray@@QEBAAEBHH@Z)]] : $@convention(cxx_method) (Int32, @in_guaranteed ReadOnlyIntArray) -> UnsafePointer<Int32>
// CHECK: [[PTR:%.*]] = apply [[OP]]([[INDEX]], [[ARRACCESS:%.*]]) : $@convention(cxx_method) (Int32, @in_guaranteed ReadOnlyIntArray) -> UnsafePointer<Int32>
// CHECK: } // end sil function '$s4main5indexys5Int32VSo16ReadOnlyIntArrayV_ADtF'
// CHECK: sil shared [transparent] @$sSo16ReadOnlyIntArrayVys5Int32VADcig : $@convention(method) (Int32, @in_guaranteed ReadOnlyIntArray) -> Int32 {
// CHECK: bb0([[INDEX:%.*]] : $Int32, [[SELF:%.*]] : $*ReadOnlyIntArray):
// CHECK: [[OP:%.*]] = function_ref [[READCLASSNAME]] : $@convention(cxx_method) (Int32, @in_guaranteed ReadOnlyIntArray) -> UnsafePointer<Int32>
// CHECK: [[PTR:%.*]] = apply [[OP]]([[INDEX]], [[SELFACCESS:%.*]]) : $@convention(cxx_method) (Int32, @in_guaranteed ReadOnlyIntArray) -> UnsafePointer<Int32>
// CHECK: [[PTR2:%.*]] = struct_extract [[PTR]] : $UnsafePointer<Int32>, #UnsafePointer._rawValue
// CHECK: pointer_to_address [[PTR2]] : $Builtin.RawPointer to [strict] $*Int32
// CHECK: } // end sil function '$sSo16ReadOnlyIntArrayVys5Int32VADcig'
public func index(_ arr: inout ReadWriteIntArray, _ arg: Int32, _ val: Int32) { arr[arg] = val }
// CHECK: sil @$s4main5indexyySo17ReadWriteIntArrayVz_s5Int32VAFtF : $@convention(thin) (@inout ReadWriteIntArray, Int32, Int32) -> () {
// CHECK: bb0([[ARR:%.*]] : $*ReadWriteIntArray, [[INDEX:%.*]] : $Int32, [[NEWVALUE:%.*]] : $Int32):
// CHECK: [[ARRACCESS:%.*]] = begin_access [modify] [static] [[ARR]] : $*ReadWriteIntArray
// CHECK: [[ARRACCESS2:%.*]] = begin_access [modify] [static] [[ARRACCESS]] : $*ReadWriteIntArray
// CHECK: [[OP:%.*]] = function_ref [[READWRITECLASSNAME:@(_ZN17ReadWriteIntArrayixEi|\?\?AReadWriteIntArray@@QEAAAEAHH@Z)]] : $@convention(cxx_method) (Int32, @inout ReadWriteIntArray) -> UnsafeMutablePointer<Int32>
// CHECK: [[PTR:%.*]] = apply [[OP]]([[INDEX]], [[ARRACCESS2]]) : $@convention(cxx_method) (Int32, @inout ReadWriteIntArray) -> UnsafeMutablePointer<Int32>
// CHECK: } // end sil function '$s4main5indexyySo17ReadWriteIntArrayVz_s5Int32VAFtF'
// CHECK: sil shared [transparent] @$sSo17ReadWriteIntArrayVys5Int32VADcis : $@convention(method) (Int32, Int32, @inout ReadWriteIntArray) -> () {
// CHECK: bb0([[NEWVALUE:%.*]] : $Int32, [[INDEX:%.*]] : $Int32, [[SELF:%.*]] : $*ReadWriteIntArray):
// CHECK: [[SELFACCESS:%.*]] = begin_access [modify] [static] [[SELF]] : $*ReadWriteIntArray
// CHECK: [[OP:%.*]] = function_ref [[READWRITECLASSNAME]] : $@convention(cxx_method) (Int32, @inout ReadWriteIntArray) -> UnsafeMutablePointer<Int32>
// CHECK: [[PTR:%.*]] = apply [[OP]]([[INDEX]], [[SELFACCESS]]) : $@convention(cxx_method) (Int32, @inout ReadWriteIntArray) -> UnsafeMutablePointer<Int32>
// CHECK: end_access [[SELFACCESS]] : $*ReadWriteIntArray
// CHECK: [[PTR2:%.*]] = struct_extract [[PTR]] : $UnsafeMutablePointer<Int32>, #UnsafeMutablePointer._rawValue
// CHECK: pointer_to_address [[PTR2]] : $Builtin.RawPointer to [strict] $*Int32
// CHECK: } // end sil function '$sSo17ReadWriteIntArrayVys5Int32VADcis'
public func index(_ arr: inout NonTrivialIntArrayByVal, _ arg: Int32, _ val: Int32) -> Int32 { arr[arg] }
// CHECK: sil @$s4main5indexys5Int32VSo23NonTrivialIntArrayByValVz_A2DtF : $@convention(thin) (@inout NonTrivialIntArrayByVal, Int32, Int32) -> Int32 {
// CHECK: bb0([[ARR:%.*]] : $*NonTrivialIntArrayByVal, [[INDEX:%.*]] : $Int32, [[NEWVALUE:%.*]] : $Int32):
// CHECK: [[OP:%.*]] = function_ref [[READWRITECLASSNAMEBYVAL:@(_ZNK23NonTrivialIntArrayByValixEi|\?\?ANonTrivialIntArrayByVal@@QEBAHH@Z)]] : $@convention(cxx_method) (Int32, @in_guaranteed NonTrivialIntArrayByVal) -> Int32
// CHECK: [[PTR:%.*]] = apply [[OP]]([[INDEX]], [[ARRACCESS:%.*]]) : $@convention(cxx_method) (Int32, @in_guaranteed NonTrivialIntArrayByVal) -> Int32
// CHECK: } // end sil function '$s4main5indexys5Int32VSo23NonTrivialIntArrayByValVz_A2DtF'
// CHECK: sil shared [transparent] @$sSo23NonTrivialIntArrayByValVys5Int32VADcig : $@convention(method) (Int32, @in_guaranteed NonTrivialIntArrayByVal) -> Int32 {
// CHECK: bb0([[NEWVALUE:%.*]] : $Int32, [[INDEX:%.*]] : $*NonTrivialIntArrayByVal):
// CHECK: [[OP:%.*]] = function_ref [[READWRITECLASSNAMEBYVAL]] : $@convention(cxx_method) (Int32, @in_guaranteed NonTrivialIntArrayByVal) -> Int32
// CHECK: [[PTR:%.*]] = apply [[OP]]([[NEWVALUE]], [[SELFACCESS:%.*]]) : $@convention(cxx_method) (Int32, @in_guaranteed NonTrivialIntArrayByVal) -> Int32
// CHECK: } // end sil function '$sSo23NonTrivialIntArrayByValVys5Int32VADcig
public func index(_ arr: inout PtrByVal, _ arg: Int32, _ val: Int32) -> Int32 { arr[arg]![0] }
// CHECK: sil @$s4main5indexys5Int32VSo8PtrByValVz_A2DtF : $@convention(thin) (@inout PtrByVal, Int32, Int32) -> Int32 {
// CHECK: bb0([[ARR:%.*]] : $*PtrByVal, [[INDEX:%.*]] : $Int32, [[NEWVALUE:%.*]] : $Int32):
// CHECK: [[ARRACCESS:%.*]] = begin_access [modify] [static] [[ARR]] : $*PtrByVal
// CHECK: [[ARRACCESS2:%.*]] = begin_access [modify] [static] [[ARRACCESS]] : $*PtrByVal
// CHECK: [[OP:%.*]] = function_ref [[PTRBYVAL:@(_ZN8PtrByValixEi|\?\?APtrByVal@@QEAAPEAHH@Z)]] : $@convention(cxx_method) (Int32, @inout PtrByVal) -> Optional<UnsafeMutablePointer<Int32>>
// CHECK: [[PTR:%.*]] = apply [[OP]]([[INDEX]], [[ARRACCESS2]]) : $@convention(cxx_method) (Int32, @inout PtrByVal) -> Optional<UnsafeMutablePointer<Int32>>
// CHECK: } // end sil function '$s4main5indexys5Int32VSo8PtrByValVz_A2DtF'
// CHECK: sil shared [transparent] @$sSo8PtrByValVySpys5Int32VGSgADcig : $@convention(method) (Int32, @inout PtrByVal) -> Optional<UnsafeMutablePointer<Int32>> {
// CHECK: bb0([[NEWVALUE:%.*]] : $Int32, [[INDEX:%.*]] : $*PtrByVal):
// CHECK: [[SELFACCESS:%.*]] = begin_access [modify] [static] [[INDEX]] : $*PtrByVal
// CHECK: [[OP:%.*]] = function_ref [[PTRBYVAL]] : $@convention(cxx_method) (Int32, @inout PtrByVal) -> Optional<UnsafeMutablePointer<Int32>>
// CHECK: [[PTR:%.*]] = apply [[OP]]([[NEWVALUE]], [[SELFACCESS]]) : $@convention(cxx_method) (Int32, @inout PtrByVal) -> Optional<UnsafeMutablePointer<Int32>>
// CHECK: end_access [[SELFACCESS]] : $*PtrByVal
// CHECK: } // end sil function '$sSo8PtrByValVySpys5Int32VGSgADcig
public func index(_ arr: inout RefToPtr, _ arg: Int32, _ val: Int32) -> Int32 { arr[arg]![0] }
// CHECK: sil @$s4main5indexys5Int32VSo8RefToPtrVz_A2DtF : $@convention(thin) (@inout RefToPtr, Int32, Int32) -> Int32 {
// CHECK: bb0([[ARR:%.*]] : $*RefToPtr, [[INDEX:%.*]] : $Int32, [[NEWVALUE:%.*]] : $Int32):
// CHECK: [[ARRACCESS:%.*]] = begin_access [modify] [static] [[ARR]] : $*RefToPtr
// CHECK: [[ARRACCESS2:%.*]] = begin_access [modify] [static] [[ARRACCESS]] : $*RefToPtr
// CHECK: [[OP:%.*]] = function_ref [[REFTOPTR:@(_ZN8RefToPtrixEi|\?\?ARefToPtr@@QEAAAEAPEAHH@Z)]] : $@convention(cxx_method) (Int32, @inout RefToPtr) -> UnsafeMutablePointer<Optional<UnsafeMutablePointer<Int32>>>
// CHECK: [[PTR:%.*]] = apply [[OP]]([[INDEX]], [[ARRACCESS2]]) : $@convention(cxx_method) (Int32, @inout RefToPtr) -> UnsafeMutablePointer<Optional<UnsafeMutablePointer<Int32>>>
// CHECK: } // end sil function '$s4main5indexys5Int32VSo8RefToPtrVz_A2DtF'
// CHECK: sil shared [transparent] @$sSo8RefToPtrVySpys5Int32VGSgADcig : $@convention(method) (Int32, @inout RefToPtr) -> Optional<UnsafeMutablePointer<Int32>> {
// CHECK: bb0([[NEWVALUE:%.*]] : $Int32, [[INDEX:%.*]] : $*RefToPtr):
// CHECK: [[SELFACCESS:%.*]] = begin_access [modify] [static] [[INDEX]] : $*RefToPtr
// CHECK: [[OP:%.*]] = function_ref [[REFTOPTR]] : $@convention(cxx_method) (Int32, @inout RefToPtr) -> UnsafeMutablePointer<Optional<UnsafeMutablePointer<Int32>>>
// CHECK: [[PTR:%.*]] = apply [[OP]]([[NEWVALUE]], [[SELFACCESS]]) : $@convention(cxx_method) (Int32, @inout RefToPtr) -> UnsafeMutablePointer<Optional<UnsafeMutablePointer<Int32>>>
// CHECK: end_access [[SELFACCESS]] : $*RefToPtr
// CHECK: } // end sil function '$sSo8RefToPtrVySpys5Int32VGSgADcig
public func index(_ arr: inout PtrToPtr, _ arg: Int32, _ val: Int32) -> Int32 { arr[arg]![0]![0] }
// CHECK: sil @$s4main5indexys5Int32VSo05PtrToD0Vz_A2DtF : $@convention(thin) (@inout PtrToPtr, Int32, Int32) -> Int32 {
// CHECK: bb0([[ARR:%.*]] : $*PtrToPtr, [[INDEX:%.*]] : $Int32, [[NEWVALUE:%.*]] : $Int32):
// CHECK: [[ARRACCESS:%.*]] = begin_access [modify] [static] [[ARR]] : $*PtrToPtr
// CHECK: [[ARRACCESS2:%.*]] = begin_access [modify] [static] [[ARRACCESS]] : $*PtrToPtr
// CHECK: [[OP:%.*]] = function_ref [[PTRTOPTR:@(_ZN8PtrToPtrixEi|\?\?APtrToPtr@@QEAAPEAPEAHH@Z)]] : $@convention(cxx_method) (Int32, @inout PtrToPtr) -> Optional<UnsafeMutablePointer<Optional<UnsafeMutablePointer<Int32>>>>
// CHECK: [[PTR:%.*]] = apply [[OP]]([[INDEX]], [[ARRACCESS2]]) : $@convention(cxx_method) (Int32, @inout PtrToPtr) -> Optional<UnsafeMutablePointer<Optional<UnsafeMutablePointer<Int32>>>>
// CHECK: } // end sil function '$s4main5indexys5Int32VSo05PtrToD0Vz_A2DtF'
// CHECK: sil shared [transparent] @$sSo05PtrToA0VySpySpys5Int32VGSgGSgADcig : $@convention(method) (Int32, @inout PtrToPtr) -> Optional<UnsafeMutablePointer<Optional<UnsafeMutablePointer<Int32>>>> {
// CHECK: bb0([[NEWVALUE:%.*]] : $Int32, [[INDEX:%.*]] : $*PtrToPtr):
// CHECK: [[SELFACCESS:%.*]] = begin_access [modify] [static] [[INDEX]] : $*PtrToPtr
// CHECK: [[OP:%.*]] = function_ref [[PTRTOPTR]] : $@convention(cxx_method) (Int32, @inout PtrToPtr) -> Optional<UnsafeMutablePointer<Optional<UnsafeMutablePointer<Int32>>>>
// CHECK: [[PTR:%.*]] = apply [[OP]]([[NEWVALUE]], [[SELFACCESS]]) : $@convention(cxx_method) (Int32, @inout PtrToPtr) -> Optional<UnsafeMutablePointer<Optional<UnsafeMutablePointer<Int32>>>>
// CHECK: end_access [[SELFACCESS]] : $*PtrToPtr
// CHECK: } // end sil function '$sSo05PtrToA0VySpySpys5Int32VGSgGSgADcig
public func index(_ arr: ConstOpPtrByVal, _ arg: Int32, _ val: Int32) -> Int32 { arr[arg]![0] }
// CHECK: sil @$s4main5indexys5Int32VSo15ConstOpPtrByValV_A2DtF : $@convention(thin) (ConstOpPtrByVal, Int32, Int32) -> Int32 {
// CHECK: bb0([[ARR:%.*]] : $ConstOpPtrByVal, [[INDEX:%.*]] : $Int32, [[NEWVALUE:%.*]] : $Int32):
// CHECK: [[OP:%.*]] = function_ref [[CONSTOPPTRBYVAL:@(_ZNK15ConstOpPtrByValixEi|\?\?AConstOpPtrByVal@@QEBAPEBHH@Z)]] : $@convention(cxx_method) (Int32, @in_guaranteed ConstOpPtrByVal) -> Optional<UnsafePointer<Int32>>
// CHECK: [[PTR:%.*]] = apply [[OP]]([[INDEX]], [[ARRACCESS2:%.*]]) : $@convention(cxx_method) (Int32, @in_guaranteed ConstOpPtrByVal) -> Optional<UnsafePointer<Int32>>
// CHECK: } // end sil function '$s4main5indexys5Int32VSo15ConstOpPtrByValV_A2DtF'
// CHECK: sil shared [transparent] @$sSo15ConstOpPtrByValVySPys5Int32VGSgADcig : $@convention(method) (Int32, ConstOpPtrByVal) -> Optional<UnsafePointer<Int32>> {
// CHECK: bb0([[NEWVALUE:%.*]] : $Int32, [[INDEX:%.*]] : $ConstOpPtrByVal):
// CHECK: [[OP:%.*]] = function_ref [[CONSTOPPTRBYVAL]] : $@convention(cxx_method) (Int32, @in_guaranteed ConstOpPtrByVal) -> Optional<UnsafePointer<Int32>>
// CHECK: [[PTR:%.*]] = apply [[OP]]([[NEWVALUE]], [[SELFACCESS:%.*]]) : $@convention(cxx_method) (Int32, @in_guaranteed ConstOpPtrByVal) -> Optional<UnsafePointer<Int32>>
// CHECK: } // end sil function '$sSo15ConstOpPtrByValVySPys5Int32VGSgADcig
public func index(_ arr: inout ConstPtrByVal, _ arg: Int32, _ val: Int32) -> Int32 { arr[arg]![0] }
// CHECK: sil @$s4main5indexys5Int32VSo13ConstPtrByValVz_A2DtF : $@convention(thin) (@inout ConstPtrByVal, Int32, Int32) -> Int32 {
// CHECK: bb0([[ARR:%.*]] : $*ConstPtrByVal, [[INDEX:%.*]] : $Int32, [[NEWVALUE:%.*]] : $Int32):
// CHECK: [[ARRACCESS:%.*]] = begin_access [modify] [static] [[ARR]] : $*ConstPtrByVal
// CHECK: [[ARRACCESS2:%.*]] = begin_access [modify] [static] [[ARRACCESS]] : $*ConstPtrByVal
// CHECK: [[OP:%.*]] = function_ref [[CONSTPTRBYVAL:@(_ZN13ConstPtrByValixEi|\?\?AConstPtrByVal@@QEAAPEBHH@Z)]] : $@convention(cxx_method) (Int32, @inout ConstPtrByVal) -> Optional<UnsafePointer<Int32>>
// CHECK: [[PTR:%.*]] = apply [[OP]]([[INDEX]], [[ARRACCESS2]]) : $@convention(cxx_method) (Int32, @inout ConstPtrByVal) -> Optional<UnsafePointer<Int32>>
// CHECK: } // end sil function '$s4main5indexys5Int32VSo13ConstPtrByValVz_A2DtF'
// CHECK: sil shared [transparent] @$sSo13ConstPtrByValVySPys5Int32VGSgADcig : $@convention(method) (Int32, @inout ConstPtrByVal) -> Optional<UnsafePointer<Int32>> {
// CHECK: bb0([[NEWVALUE:%.*]] : $Int32, [[INDEX:%.*]] : $*ConstPtrByVal):
// CHECK: [[SELFACCESS:%.*]] = begin_access [modify] [static] [[INDEX]] : $*ConstPtrByVal
// CHECK: [[OP:%.*]] = function_ref [[CONSTPTRBYVAL]] : $@convention(cxx_method) (Int32, @inout ConstPtrByVal) -> Optional<UnsafePointer<Int32>>
// CHECK: [[PTR:%.*]] = apply [[OP]]([[NEWVALUE]], [[SELFACCESS]]) : $@convention(cxx_method) (Int32, @inout ConstPtrByVal) -> Optional<UnsafePointer<Int32>>
// CHECK: end_access [[SELFACCESS]] : $*ConstPtrByVal
// CHECK: } // end sil function '$sSo13ConstPtrByValVySPys5Int32VGSgADcig
public func subscriptUnnamed(_ unnamed: SubscriptUnnamedParameter, _ arg: Int32) -> Int32 { unnamed[arg] }
// CHECK: sil shared [transparent] @$sSo25SubscriptUnnamedParameterVys5Int32VADcig : $@convention(method) (Int32, SubscriptUnnamedParameter) -> Int32 {
// CHECK: bb0([[INDEX:%.*]] : $Int32, [[SELF:%.*]] : $SubscriptUnnamedParameter):
// CHECK: [[SELFACCESS:%.*]] = alloc_stack $SubscriptUnnamedParameter
// CHECK: [[OP:%.*]] = function_ref [[OPERATORNAME:@(_ZNK25SubscriptUnnamedParameterixEi|\?\?ASubscriptUnnamedParameter@@QEBAHH@Z)]] : $@convention(cxx_method) (Int32, @in_guaranteed SubscriptUnnamedParameter) -> Int32
// CHECK: [[PTR:%.*]] = apply [[OP]]([[INDEX]], [[SELFACCESS]]) : $@convention(cxx_method) (Int32, @in_guaranteed SubscriptUnnamedParameter) -> Int32
// CHECK: dealloc_stack [[SELFACCESS]]
// CHECK: } // end sil function '$sSo25SubscriptUnnamedParameterVys5Int32VADcig'
// CHECK: sil [clang ReadOnlyIntArray.__operatorSubscriptConst] [[READCLASSNAME]] : $@convention(cxx_method) (Int32, @in_guaranteed ReadOnlyIntArray) -> UnsafePointer<Int32>
// CHECK: sil [clang ReadWriteIntArray.__operatorSubscript] [[READWRITECLASSNAME]] : $@convention(cxx_method) (Int32, @inout ReadWriteIntArray) -> UnsafeMutablePointer<Int32>
// CHECK: sil [clang NonTrivialIntArrayByVal.__operatorSubscriptConst] [[READWRITECLASSNAMEBYVAL]] : $@convention(cxx_method) (Int32, @in_guaranteed NonTrivialIntArrayByVal) -> Int32
// CHECK: sil [clang PtrByVal.__operatorSubscript] [[PTRBYVAL]] : $@convention(cxx_method) (Int32, @inout PtrByVal) -> Optional<UnsafeMutablePointer<Int32>>
// CHECK: sil [clang RefToPtr.__operatorSubscript] [[REFTOPTR]] : $@convention(cxx_method) (Int32, @inout RefToPtr) -> UnsafeMutablePointer<Optional<UnsafeMutablePointer<Int32>>>
// CHECK: sil [clang PtrToPtr.__operatorSubscript] [[PTRTOPTR]] : $@convention(cxx_method) (Int32, @inout PtrToPtr) -> Optional<UnsafeMutablePointer<Optional<UnsafeMutablePointer<Int32>>>>
// CHECK: sil [clang ConstOpPtrByVal.__operatorSubscriptConst] [[CONSTOPPTRBYVAL]] : $@convention(cxx_method) (Int32, @in_guaranteed ConstOpPtrByVal) -> Optional<UnsafePointer<Int32>>
// CHECK: sil [clang ConstPtrByVal.__operatorSubscriptConst] [[CONSTPTRBYVAL]] : $@convention(cxx_method) (Int32, @inout ConstPtrByVal) -> Optional<UnsafePointer<Int32>>
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