// RUN: rm -rf %t && mkdir -p %t
// RUN: %build-irgen-test-overlays
// RUN: %target-swift-frontend(mock-sdk: -sdk %S/Inputs -I %t) %s -emit-ir -disable-objc-attr-requires-foundation-module | %FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-%target-ptrsize

// REQUIRES: CPU=x86_64
// REQUIRES: objc_interop

import Builtin
import Swift
import Foundation
import gizmo

@objc class ObjCClass : BaseClassForMethodFamilies {
  func method(x: Int) {}
  func method2(r: NSRect) {}
  
  override func fakeInitFamily() -> ObjCClass { return self }
}
sil_vtable ObjCClass {}
sil @_TFC13partial_apply9ObjCClassD : $@convention(method) (ObjCClass) -> ()

sil @_TFC13partial_apply9ObjCClasscfMS_FT_S_ : $@convention(method) (ObjCClass) -> ObjCClass {
bb0(%0 : $ObjCClass):
  return %0 : $ObjCClass
}

sil @_TToFC13partial_apply9ObjCClasscfT_S0_ : $@convention(objc_method) (ObjCClass) -> ObjCClass {
bb0(%0 : $ObjCClass):
  // function_ref ObjectiveC.ObjCClass.constructor (ObjectiveC.ObjCClass.Type)() -> ObjectiveC.ObjCClass
  %1 = function_ref @_TFC13partial_apply9ObjCClasscfMS_FT_S_ : $@convention(method) (ObjCClass) -> ObjCClass // user: %2
  %2 = apply %1(%0) : $@convention(method) (ObjCClass) -> ObjCClass // user: %3
  return %2 : $ObjCClass
}

sil @_TToFC13partial_apply9ObjCClass6methodfT1xSi_T_ : $@convention(objc_method) (Int, ObjCClass) -> () {
bb0(%0 : $Int, %1 : $ObjCClass):
  %v = tuple()
  return %v : $()
}
sil @_TToFC13partial_apply9ObjCClass7method2fT1rVSC6NSRect_T_ : $@convention(objc_method) (NSRect, ObjCClass) -> () {
bb0(%0 : $NSRect, %1 : $ObjCClass):
  %v = tuple()
  return %v : $()
}

sil @_TToFC13partial_apply9ObjCClass14fakeInitFamilyfT_S0_ : $@convention(objc_method) (@owned ObjCClass) -> @owned ObjCClass {
bb0(%0 : $ObjCClass):
  return %0 : $ObjCClass
}

// CHECK-LABEL: define{{( protected)?}} { i8*, %swift.refcounted* } @indirect_partial_apply(i8*, %swift.refcounted*, i64) {{.*}} {
// CHECK: entry:
// CHECK:   [[OBJ:%.*]] = call noalias %swift.refcounted* @swift_rt_swift_allocObject(%swift.type* getelementptr inbounds (%swift.full_boxmetadata, %swift.full_boxmetadata* @metadata, i32 0, i32 2), i64 40, i64 7)
// CHECK:   [[DATA_ADDR:%.*]] = bitcast %swift.refcounted* [[OBJ]] to [[DATA_TYPE:<{ %swift.refcounted, i64, %swift.refcounted\*, i8\* }>]]*
// CHECK:   [[X_ADDR:%.*]] = getelementptr inbounds [[DATA_TYPE]], [[DATA_TYPE]]* [[DATA_ADDR]], i32 0, i32 1
// CHECK:   store i64 %2, i64* [[X_ADDR]], align 8
// CHECK:   [[CONTEXT_ADDR:%.*]] = getelementptr inbounds [[DATA_TYPE]], [[DATA_TYPE]]* [[DATA_ADDR]], i32 0, i32 2
// CHECK:   store %swift.refcounted* %1, %swift.refcounted** [[CONTEXT_ADDR]], align 8
// CHECK:   [[FN_ADDR:%.*]] = getelementptr inbounds [[DATA_TYPE]], [[DATA_TYPE]]* [[DATA_ADDR]], i32 0, i32 3
// CHECK:   store i8* %0, i8** [[FN_ADDR]], align 8
// CHECK:   [[RET:%.*]] = insertvalue { i8*, %swift.refcounted* } { i8* bitcast (void (%swift.refcounted*)* [[INDIRECT_PARTIAL_APPLY_STUB:@_TPA[A-Za-z0-9_]*]] to i8*), %swift.refcounted* undef }, %swift.refcounted* [[OBJ]], 1
// CHECK:   ret { i8*, %swift.refcounted* } [[RET]]
// CHECK: }
// CHECK: define internal void [[INDIRECT_PARTIAL_APPLY_STUB]](%swift.refcounted*) {{.*}} {
// CHECK: entry:
// CHECK:   [[DATA_ADDR:%.*]] = bitcast %swift.refcounted* %0 to [[DATA_TYPE]]
// CHECK:   [[X_ADDR:%.*]] = getelementptr inbounds [[DATA_TYPE]], [[DATA_TYPE]]* %1, i32 0, i32 1
// CHECK:   [[X:%.*]] = load i64, i64* [[X_ADDR]], align 8
// CHECK:   [[CONTEXT_ADDR:%.*]] = getelementptr inbounds [[DATA_TYPE]], [[DATA_TYPE]]* [[DATA_ADDR]], i32 0, i32 2
// CHECK:   [[CONTEXT:%.*]] = load %swift.refcounted*, %swift.refcounted** [[CONTEXT_ADDR]], align 8
// CHECK:   [[FN_ADDR:%.*]] = getelementptr inbounds [[DATA_TYPE]], [[DATA_TYPE]]* [[DATA_ADDR]], i32 0, i32 3
// CHECK:   [[FN_PTR:%.*]] = load i8*, i8** [[FN_ADDR]], align 8
// CHECK:   [[FN:%.*]] = bitcast i8* [[FN_PTR]] to void (i64, %swift.refcounted*)*
// CHECK:   tail call void [[FN]](i64 [[X]], %swift.refcounted* [[CONTEXT]])
// CHECK:   ret void
// CHECK: }

sil @indirect_partial_apply : $@convention(thin) (@callee_owned (Builtin.Word) -> (), Builtin.Word) -> @callee_owned () -> () {
entry(%f : $@callee_owned (Builtin.Word) -> (), %x : $Builtin.Word):
  %p = partial_apply %f(%x) : $@callee_owned (Builtin.Word) -> ()
  return %p : $@callee_owned () -> ()
}

// CHECK-LABEL: define{{( protected)?}} { i8*, %swift.refcounted* } @objc_partial_apply(%C13partial_apply9ObjCClass*) {{.*}} {
// CHECK: entry:
// CHECK:   [[OBJ:%.*]] = call noalias %swift.refcounted* @swift_rt_swift_allocObject(%swift.type* getelementptr inbounds (%swift.full_boxmetadata, %swift.full_boxmetadata* @metadata.2, i32 0, i32 2), i64 24, i64 7)
// CHECK:   [[DATA_ADDR:%.*]] = bitcast %swift.refcounted* [[OBJ]] to [[DATA_TYPE:<{ %swift.refcounted, %C13partial_apply9ObjCClass\* }>]]*
// CHECK:   [[X_ADDR:%.*]] = getelementptr inbounds [[DATA_TYPE]], [[DATA_TYPE]]* [[DATA_ADDR]], i32 0, i32 1
// CHECK:   store %C13partial_apply9ObjCClass* %0, %C13partial_apply9ObjCClass** [[X_ADDR]], align 8
// CHECK:   [[RET:%.*]] = insertvalue { i8*, %swift.refcounted* } { i8* bitcast (void (i64, %swift.refcounted*)* [[OBJC_PARTIAL_APPLY_STUB:@_TPA[A-Za-z0-9_]*]] to i8*), %swift.refcounted* undef }, %swift.refcounted* [[OBJ]], 1
// CHECK:   ret { i8*, %swift.refcounted* } [[RET]]
// CHECK: }
// CHECK: define internal void [[OBJC_PARTIAL_APPLY_STUB]](i64, %swift.refcounted*) {{.*}} {
// CHECK: entry:
// CHECK-NOT: swift_retain
// CHECK:   [[DATA_ADDR:%.*]] = bitcast %swift.refcounted* %1 to [[DATA_TYPE]]*
// CHECK-NOT: swift_retain
// CHECK:   [[X_ADDR:%.*]] = getelementptr inbounds [[DATA_TYPE]], [[DATA_TYPE]]* [[DATA_ADDR]], i32 0, i32 1
// CHECK-NOT: swift_retain
// CHECK:   [[SELF:%.*]] = load %C13partial_apply9ObjCClass*, %C13partial_apply9ObjCClass** [[X_ADDR]], align 8
// CHECK-NOT: swift_retain
// CHECK:   [[CMD:%.*]] = load i8*, i8** @"\01L_selector(methodWithX:)", align 8
// CHECK:   [[I8PTRSELF:%.*]] = bitcast %C13partial_apply9ObjCClass* [[SELF]] to [[OPAQUE0:%.*]]*
// CHECK-NOT: swift_retain
// CHECK:   call void bitcast (void ()* @objc_msgSend to void ([[OPAQUE2:%.*]]*, i8*, i64)*)([[OPAQUE2]]* [[I8PTRSELF]], i8* [[CMD]], i64 %0)
// CHECK:   ret void
// CHECK: }

sil @objc_partial_apply : $@convention(thin) ObjCClass -> @callee_owned Int -> () {
entry(%c : $ObjCClass):
  %m = class_method [volatile] %c : $ObjCClass, #ObjCClass.method!1.foreign : (ObjCClass) -> (Int) -> () , $@convention(objc_method) (Int, ObjCClass) -> ()
  %p = partial_apply %m(%c) : $@convention(objc_method) (Int, ObjCClass) -> ()
  return %p : $@callee_owned Int -> ()
}

// CHECK-LABEL: define{{.*}} { i8*, %swift.refcounted* } @objc_partial_apply_indirect_sil_argument(%C13partial_apply9ObjCClass*) {{.*}}
// CHECK:  [[CTX:%.*]] = call noalias %swift.refcounted* @swift_rt_swift_allocObject
// CHECK:  [[CTX_ADDR:%.*]] = bitcast %swift.refcounted* [[CTX]] to [[CTXTYPE:<{ %swift.refcounted, %C13partial_apply9ObjCClass\* }>]]*
// CHECK:  [[SELF_ADDR:%.*]] = getelementptr inbounds [[CTXTYPE]], [[CTXTYPE]]* [[CTX_ADDR]], i32 0, i32 1
// CHECK:  store %C13partial_apply9ObjCClass* %0, %C13partial_apply9ObjCClass** [[SELF_ADDR]]
// CHECK:  [[CLOSURE:%.*]] = insertvalue { i8*, %swift.refcounted* } { i8* bitcast (void (%VSC6NSRect*, %swift.refcounted*)* [[OBJC_PARTIAL_APPLY_STUB2:@_TPA[A-Za-z0-9_.]*]] to i8*), %swift.refcounted* undef }, %swift.refcounted* [[CTX]], 1
// CHECK:  ret { i8*, %swift.refcounted* } [[CLOSURE]]
// CHECK:}
// CHECK: define internal void [[OBJC_PARTIAL_APPLY_STUB2]](%VSC6NSRect* noalias nocapture dereferenceable(32), %swift.refcounted*
// CHECK:  [[TMP:%.*]] = alloca %VSC6NSRect
// CHECK:  [[ORIGIN:%.*]] = getelementptr inbounds %VSC6NSRect, %VSC6NSRect* %0
// CHECK:  [[ORIGINX:%.*]] = getelementptr inbounds %VSC7NSPoint, %VSC7NSPoint* [[ORIGIN]]
// CHECK:  [[ORIGINXVAL:%*]] = getelementptr inbounds %Sd, %Sd* [[ORIGINX]]
// CHECK:  [[VAL:%.*]] = load double, double* [[ORIGINXVAL]]
sil @objc_partial_apply_indirect_sil_argument : $@convention(thin) ObjCClass -> @callee_owned NSRect -> () {
entry(%c : $ObjCClass):
  %m = class_method [volatile] %c : $ObjCClass, #ObjCClass.method2!1.foreign : (ObjCClass) -> (NSRect) -> () , $@convention(objc_method) (NSRect, ObjCClass) -> ()
  %p = partial_apply %m(%c) : $@convention(objc_method) (NSRect, ObjCClass) -> ()
  return %p : $@callee_owned NSRect -> ()
}

// CHECK-LABEL: define{{( protected)?}} { i8*, %swift.refcounted* } @objc_partial_apply_consumes_self(%C13partial_apply9ObjCClass*) {{.*}} {
// CHECK:         bitcast %swift.refcounted* {{%.*}} to [[DATA_TYPE:<{ %swift.refcounted, %C13partial_apply9ObjCClass\* }>]]*
// CHECK:         insertvalue {{.*}} [[OBJC_CONSUMES_SELF_PARTIAL_APPLY_STUB:@_TPA[A-Za-z0-9_.]*]]
// CHECK: define internal %C13partial_apply9ObjCClass* [[OBJC_CONSUMES_SELF_PARTIAL_APPLY_STUB]](%swift.refcounted*) {{.*}} {
// CHECK:   [[DATA_ADDR:%.*]] = bitcast %swift.refcounted* %0 to [[DATA_TYPE]]*
// CHECK:   [[X_ADDR:%.*]] = getelementptr inbounds [[DATA_TYPE]], [[DATA_TYPE]]* [[DATA_ADDR]], i32 0, i32 1
// CHECK:   [[SELF:%.*]] = load %C13partial_apply9ObjCClass*, %C13partial_apply9ObjCClass** [[X_ADDR]], align 8
// CHECK:   call {{.*}}@objc_retain{{.*}}(%{{.*}}* [[SELF]])
// CHECK:   [[CMD:%.*]] = load i8*, i8** @"\01L_selector(fakeInitFamily)", align 8
// CHECK:   [[I8PTRSELF:%.*]] = bitcast %C13partial_apply9ObjCClass* [[SELF]] to [[OPAQUE4:%.*]]*
// CHECK:   call [[OPAQUE3:%.*]]* bitcast (void ()* @objc_msgSend to [[OPAQUE3]]* ([[OPAQUE4:%.*]]*, i8*)*)([[OPAQUE4]]* [[I8PTRSELF]], i8* [[CMD]])
// CHECK-NOT: release
// CHECK:   call void @swift_rt_swift_release(%swift.refcounted* %0)
// CHECK-NOT: release
// CHECK:   ret void
// CHECK: }

sil @objc_partial_apply_consumes_self : $@convention(thin) ObjCClass -> @callee_owned () -> @owned ObjCClass {
entry(%c : $ObjCClass):
  %m = class_method [volatile] %c : $ObjCClass, #ObjCClass.fakeInitFamily!1.foreign : (ObjCClass) -> () -> ObjCClass , $@convention(objc_method) (@owned ObjCClass) -> @owned ObjCClass
  %p = partial_apply %m(%c) : $@convention(objc_method) (@owned ObjCClass) -> @owned ObjCClass
  return %p : $@callee_owned () -> @owned ObjCClass
}

sil @dummy : $@convention(thin) Int -> () {
entry(%x : $Int):
  %v = tuple ()
  return %v : $()
}

// CHECK-LABEL: define{{( protected)?}} { i8*, %swift.refcounted* } @dynamic_lookup_br_partial_apply(%objc_object*) {{.*}} {
// CHECK:   phi i8* [ bitcast (void (i64)* @dummy to i8*), {{%.*}} ], [ bitcast (void (i64, %swift.refcounted*)* [[DYNAMIC_LOOKUP_BR_PARTIAL_APPLY_STUB:@_TPA[A-Za-z0-9_.]*]] to i8*), {{%.*}} ]
// CHECK: define internal void [[DYNAMIC_LOOKUP_BR_PARTIAL_APPLY_STUB]](i64, %swift.refcounted*) {{.*}} {
// CHECK:   load i8*, i8** @"\01L_selector(methodWithX:)", align 8

sil @dynamic_lookup_br_partial_apply : $@convention(thin) Builtin.UnknownObject -> @callee_owned Int -> () {
entry(%o : $Builtin.UnknownObject):
  dynamic_method_br %o : $Builtin.UnknownObject, #ObjCClass.method!1.foreign, yes, no

yes(%m : $@convention(objc_method) (Int, Builtin.UnknownObject) -> ()):
  %p = partial_apply %m(%o) : $@convention(objc_method) (Int, Builtin.UnknownObject) -> ()
  br done(%p : $@callee_owned Int -> ())

no:
  %q = function_ref @dummy : $@convention(thin) Int -> ()
  %r = thin_to_thick_function %q : $@convention(thin) Int -> () to $@callee_owned Int -> ()
  br done(%r : $@callee_owned Int -> ())

done(%f : $@callee_owned Int -> ()):
  return %f : $@callee_owned Int -> ()
}

class SwiftClass {}
sil_vtable SwiftClass {}
sil @_TFC13partial_apply10SwiftClassD : $@convention(method) (SwiftClass) -> ()

sil @partially_applyable_to_class : $@convention(thin) (@owned SwiftClass) -> ()

// CHECK: define{{( protected)?}} { i8*, %swift.refcounted* } @partial_apply_class(%C13partial_apply10SwiftClass*) {{.*}} {
// CHECK: entry:
// CHECK:   %1 = bitcast %C13partial_apply10SwiftClass* %0 to %swift.refcounted*
// CHECK:   %2 = insertvalue { i8*, %swift.refcounted* } { i8* bitcast (void (%C13partial_apply10SwiftClass*)* @partially_applyable_to_class to i8*), %swift.refcounted* undef }, %swift.refcounted* %1, 1
// CHECK:   ret { i8*, %swift.refcounted* } %2
// CHECK: }
sil @partial_apply_class : $@convention(thin) SwiftClass -> @callee_owned () -> () {
entry(%c : $SwiftClass):
  %f = function_ref @partially_applyable_to_class : $@convention(thin) (@owned SwiftClass) -> ()
  %g = partial_apply %f(%c) : $@convention(thin) (@owned SwiftClass) -> ()
  return %g : $@callee_owned () -> ()
}

sil @partially_applyable_to_pure_objc : $@convention(thin) Gizmo -> ()

// CHECK: define{{( protected)?}} { i8*, %swift.refcounted* } @partial_apply_pure_objc
// CHECK:   @swift_rt_swift_allocObject
sil @partial_apply_pure_objc : $@convention(thin) Gizmo -> @callee_owned () -> () {
entry(%c : $Gizmo):
  %f = function_ref @partially_applyable_to_pure_objc : $@convention(thin) Gizmo -> ()
  %g = partial_apply %f(%c) : $@convention(thin) Gizmo -> ()
  return %g : $@callee_owned () -> ()
}

//
// Check that partially applied generic parameters are correctly substituted
// in the forwarder.
//

// CHECK-LABEL: define internal i64 @_TPA_generic_captured_param(i64, %swift.refcounted*) {{.*}} {
// CHECK:         bitcast %Si* {{%.*}} to %swift.opaque*
sil public_external @generic_captured_param : $@convention(thin) <T> (Int, @inout T) -> Int

sil @partial_apply_generic_capture : $@convention(thin) Int -> @callee_owned Int -> Int {
entry(%x : $Int):
  %a = alloc_stack $Int
  store %x to %a : $*Int
  %f = function_ref @generic_captured_param : $@convention(thin) <T> (Int, @inout T) -> Int
  %p = partial_apply %f<Int>(%a) : $@convention(thin) <T> (Int, @inout T) -> Int
  dealloc_stack %a : $*Int
  return %p : $@callee_owned Int -> Int
}

sil public_external @generic_captured_and_open_param : $@convention(thin) <T> (@in T, @inout T) -> @out T

// CHECK-LABEL: define {{.*}} @partial_apply_open_generic_capture({{.*}} %swift.type* %T) {{.*}} {
// CHECK:         store %swift.type* %T
// CHECK:         insertvalue {{.*}} [[PARTIAL_APPLY_STUB:@_TPA_[A-Za-z0-9_]+]]

// CHECK:       define {{.*}} [[PARTIAL_APPLY_STUB]]
// CHECK:         [[T:%.*]] = load %swift.type*, %swift.type**
// CHECK:         tail call void @generic_captured_and_open_param({{.*}} %swift.type* [[T]])
sil @partial_apply_open_generic_capture : $@convention(thin) <T> (@inout T) -> @callee_owned (@in T) -> @out T {
entry(%a : $*T):
  %f = function_ref @generic_captured_and_open_param : $@convention(thin) <U> (@in U, @inout U) -> @out U
  %p = partial_apply %f<T>(%a) : $@convention(thin) <U> (@in U, @inout U) -> @out U
  return %p : $@callee_owned (@in T) -> @out T
}

/*****************************************************************************/
/* Swift-refcounted class captures.  Optimizable by using the reference      */
/* as the partial apply context.                                             */
/*****************************************************************************/

sil public_external @guaranteed_captured_class_param : $@convention(thin) (Int, @guaranteed SwiftClass) -> Int

// CHECK-LABEL: define{{( protected)?}} { i8*, %swift.refcounted* } @partial_apply_guaranteed_class_param(%C13partial_apply10SwiftClass*)
// CHECK:         [[CONTEXT_OBJ:%.*]] = bitcast %C13partial_apply10SwiftClass* {{%.*}} to %swift.refcounted*
// CHECK:         [[T0:%.*]] = insertvalue {{.*}} [[PARTIAL_APPLY_FORWARDER:@_TPA_[A-Za-z0-9_]+]] {{.*}} [[CONTEXT_OBJ]]
// CHECK:         ret {{.*}} [[T0]]

// CHECK:       define internal i64 [[PARTIAL_APPLY_FORWARDER]]
// CHECK:         [[X:%.*]] = bitcast %swift.refcounted* %1 to %C13partial_apply10SwiftClass*
// CHECK-NOT:     retain
// CHECK:         [[RESULT:%.*]] = call i64 @guaranteed_captured_class_param(i64 %0, %C13partial_apply10SwiftClass* [[X]])
// CHECK:         release{{.*}} %1)
// CHECK:         ret i64 [[RESULT]]

sil @partial_apply_guaranteed_class_param : $@convention(thin) (@owned SwiftClass) -> @callee_owned (Int) -> Int {
bb0(%x : $SwiftClass):
  %f = function_ref @guaranteed_captured_class_param : $@convention(thin) (Int, @guaranteed SwiftClass) -> Int
  %p = partial_apply %f(%x) : $@convention(thin) (Int, @guaranteed SwiftClass) -> Int
  return %p : $@callee_owned (Int) -> Int
}

sil public_external @indirect_guaranteed_captured_class_param : $@convention(thin) (Int, @in_guaranteed SwiftClass) -> Int

// CHECK-LABEL: define{{( protected)?}} { i8*, %swift.refcounted* } @partial_apply_indirect_guaranteed_class_param(%C13partial_apply10SwiftClass** noalias nocapture dereferenceable({{.*}}))
// CHECK-NOT:     {{retain|release}}
// CHECK:         [[X:%.*]] = load %C13partial_apply10SwiftClass*, %C13partial_apply10SwiftClass** %0
// CHECK-NEXT:    [[CONTEXT_OBJ:%.*]] = bitcast %C13partial_apply10SwiftClass* [[X]] to %swift.refcounted*
// CHECK-NOT:     {{retain|release}}
// CHECK:         [[T0:%.*]] = insertvalue {{.*}} [[PARTIAL_APPLY_FORWARDER:@_TPA_[A-Za-z0-9_]+]] {{.*}} [[CONTEXT_OBJ]]
// CHECK:         ret {{.*}} [[T0]]

// CHECK:       define internal i64 [[PARTIAL_APPLY_FORWARDER]]
// CHECK:         [[X_TMP:%.*]] = alloca %swift.refcounted*
// CHECK-NEXT:    store %swift.refcounted* %1, %swift.refcounted** [[X_TMP]], align
// CHECK-NEXT:    [[X_CAST:%.*]] = bitcast %swift.refcounted** [[X_TMP]] to %C13partial_apply10SwiftClass**
// CHECK-NOT:     load
// CHECK-NOT:     retain
// CHECK-NOT:     release
// CHECK:         [[RESULT:%.*]] = call i64 @indirect_guaranteed_captured_class_param(i64 %0, %C13partial_apply10SwiftClass** noalias nocapture dereferenceable({{.*}}) [[X_CAST]]
// CHECK-NOT:     retain
// CHECK:         call void @swift_rt_swift_release(%swift.refcounted* %1)
// CHECK:         ret i64 [[RESULT]]

sil @partial_apply_indirect_guaranteed_class_param : $@convention(thin) (@in SwiftClass) -> @callee_owned (Int) -> Int {
bb0(%x : $*SwiftClass):
  %f = function_ref @indirect_guaranteed_captured_class_param : $@convention(thin) (Int, @in_guaranteed SwiftClass) -> Int
  %p = partial_apply %f(%x) : $@convention(thin) (Int, @in_guaranteed SwiftClass) -> Int
  return %p : $@callee_owned (Int) -> Int
}

sil public_external @indirect_consumed_captured_class_param : $@convention(thin) (Int, @in SwiftClass) -> Int

// CHECK-LABEL: define{{( protected)?}} { i8*, %swift.refcounted* } @partial_apply_indirect_consumed_class_param(%C13partial_apply10SwiftClass** noalias nocapture dereferenceable({{.*}}))
// CHECK-NOT:     {{retain|release}}
// CHECK:         [[X:%.*]] = load %C13partial_apply10SwiftClass*, %C13partial_apply10SwiftClass** %0
// CHECK-NEXT:    [[CONTEXT_OBJ:%.*]] = bitcast %C13partial_apply10SwiftClass* [[X]] to %swift.refcounted*
// CHECK-NOT:     {{retain|release}}
// CHECK:         [[T0:%.*]] = insertvalue {{.*}} [[PARTIAL_APPLY_FORWARDER:@_TPA_[A-Za-z0-9_]+]] {{.*}} [[CONTEXT_OBJ]]
// CHECK:         ret {{.*}} [[T0]]

// CHECK:       define internal i64 [[PARTIAL_APPLY_FORWARDER]]
// CHECK:         [[X_TMP:%.*]] = alloca %swift.refcounted*
// CHECK-NEXT:    store %swift.refcounted* %1, %swift.refcounted** [[X_TMP]], align
// CHECK-NEXT:    [[X_CAST:%.*]] = bitcast %swift.refcounted** [[X_TMP]] to %C13partial_apply10SwiftClass**
// CHECK-NOT:     load
// CHECK-NOT:     retain
// CHECK-NOT:     release
// CHECK:         [[RESULT:%.*]] = tail call i64 @indirect_consumed_captured_class_param(i64 %0, %C13partial_apply10SwiftClass** noalias nocapture dereferenceable({{.*}}) [[X_CAST]])
// CHECK-NOT:     retain
// CHECK-NOT:     release
// CHECK:         ret i64 [[RESULT]]

sil @partial_apply_indirect_consumed_class_param : $@convention(thin) (@in SwiftClass) -> @callee_owned (Int) -> Int {
bb0(%x : $*SwiftClass):
  %f = function_ref @indirect_consumed_captured_class_param : $@convention(thin) (Int, @in SwiftClass) -> Int
  %p = partial_apply %f(%x) : $@convention(thin) (Int, @in SwiftClass) -> Int
  return %p : $@callee_owned (Int) -> Int
}

/*****************************************************************************/
/* A non-trivial capture.  Indirect applications can directly reference the  */
/* field from the partial apply context.                                     */
/*****************************************************************************/

struct SwiftClassPair { var x: SwiftClass, y: SwiftClass }

sil public_external @guaranteed_captured_class_pair_param : $@convention(thin) (Int, @guaranteed SwiftClassPair) -> Int

// CHECK-LABEL: define{{( protected)?}} { i8*, %swift.refcounted* } @partial_apply_guaranteed_class_pair_param(%C13partial_apply10SwiftClass*, %C13partial_apply10SwiftClass*)
// CHECK:         [[CONTEXT_OBJ:%.*]] = call noalias %swift.refcounted* @swift_rt_swift_allocObject
// CHECK:         [[PAIR_ADDR:%.*]] = getelementptr
// CHECK-NEXT:    [[X_ADDR:%.*]] = getelementptr inbounds %V13partial_apply14SwiftClassPair, %V13partial_apply14SwiftClassPair* [[PAIR_ADDR]], i32 0, i32 0
// CHECK-NEXT:    store %C13partial_apply10SwiftClass* %0, %C13partial_apply10SwiftClass** [[X_ADDR]], align
// CHECK-NEXT:    [[Y_ADDR:%.*]] = getelementptr inbounds %V13partial_apply14SwiftClassPair, %V13partial_apply14SwiftClassPair* [[PAIR_ADDR]], i32 0, i32 1
// CHECK-NEXT:    store %C13partial_apply10SwiftClass* %1, %C13partial_apply10SwiftClass** [[Y_ADDR]], align
// CHECK-NOT:     {{retain|release}}
// CHECK:         [[T0:%.*]] = insertvalue {{.*}} [[PARTIAL_APPLY_FORWARDER:@_TPA_[A-Za-z0-9_]+]] {{.*}} [[CONTEXT_OBJ]]
// CHECK:         ret {{.*}} [[T0]]

// CHECK:       define internal i64 [[PARTIAL_APPLY_FORWARDER]]
// CHECK:         [[PAIR_ADDR:%.*]] = getelementptr
// CHECK-NEXT:    [[X_ADDR:%.*]] = getelementptr inbounds %V13partial_apply14SwiftClassPair, %V13partial_apply14SwiftClassPair* [[PAIR_ADDR]], i32 0, i32 0
// CHECK-NEXT:    [[X:%.*]] = load %C13partial_apply10SwiftClass*, %C13partial_apply10SwiftClass** [[X_ADDR]], align
// CHECK-NEXT:    [[Y_ADDR:%.*]] = getelementptr inbounds %V13partial_apply14SwiftClassPair, %V13partial_apply14SwiftClassPair* [[PAIR_ADDR]], i32 0, i32 1
// CHECK-NEXT:    [[Y:%.*]] = load %C13partial_apply10SwiftClass*, %C13partial_apply10SwiftClass** [[Y_ADDR]], align
// CHECK-NOT:     retain
// CHECK:         [[RESULT:%.*]] = call i64 @guaranteed_captured_class_pair_param(i64 %0, %C13partial_apply10SwiftClass* [[X]], %C13partial_apply10SwiftClass* [[Y]])
// CHECK:         release{{.*}}%1)
// CHECK:         ret i64 [[RESULT]]

sil @partial_apply_guaranteed_class_pair_param : $@convention(thin) (@owned SwiftClassPair) -> @callee_owned (Int) -> Int {
bb0(%x : $SwiftClassPair):
  %f = function_ref @guaranteed_captured_class_pair_param : $@convention(thin) (Int, @guaranteed SwiftClassPair) -> Int
  %p = partial_apply %f(%x) : $@convention(thin) (Int, @guaranteed SwiftClassPair) -> Int
  return %p : $@callee_owned (Int) -> Int
}

sil public_external @indirect_guaranteed_captured_class_pair_param : $@convention(thin) (Int, @in_guaranteed SwiftClassPair) -> Int

// CHECK-LABEL: define{{( protected)?}} { i8*, %swift.refcounted* } @partial_apply_indirect_guaranteed_class_pair_param(%V13partial_apply14SwiftClassPair* noalias nocapture dereferenceable({{.*}}))
// CHECK:         [[CONTEXT_OBJ:%.*]] = call noalias %swift.refcounted* @swift_rt_swift_allocObject
// CHECK-NOT:     {{retain|release}}
// CHECK:         [[T0:%.*]] = insertvalue {{.*}} [[PARTIAL_APPLY_FORWARDER:@_TPA_[A-Za-z0-9_]+]] {{.*}} [[CONTEXT_OBJ]]
// CHECK:         ret {{.*}} [[T0]]

// CHECK:       define internal i64 [[PARTIAL_APPLY_FORWARDER]]
// CHECK:         [[PAIR_ADDR:%.*]] = getelementptr
// CHECK-NOT:     load
// CHECK-NOT:     retain
// CHECK:         [[RESULT:%.*]] = call i64 @indirect_guaranteed_captured_class_pair_param(i64 %0, %V13partial_apply14SwiftClassPair* noalias nocapture dereferenceable({{.*}}) [[PAIR_ADDR]])
// CHECK:         release{{.*}}%1)
// CHECK:         ret i64 [[RESULT]]

sil @partial_apply_indirect_guaranteed_class_pair_param : $@convention(thin) (@in SwiftClassPair) -> @callee_owned (Int) -> Int {
bb0(%x : $*SwiftClassPair):
  %f = function_ref @indirect_guaranteed_captured_class_pair_param : $@convention(thin) (Int, @in_guaranteed SwiftClassPair) -> Int
  %p = partial_apply %f(%x) : $@convention(thin) (Int, @in_guaranteed SwiftClassPair) -> Int
  return %p : $@callee_owned (Int) -> Int
}

sil public_external @indirect_consumed_captured_class_pair_param : $@convention(thin) (Int, @in SwiftClassPair) -> Int

// CHECK-LABEL: define{{( protected)?}} { i8*, %swift.refcounted* } @partial_apply_indirect_consumed_class_pair_param(%V13partial_apply14SwiftClassPair* noalias nocapture dereferenceable({{.*}}))
// CHECK:         [[CONTEXT_OBJ:%.*]] = call noalias %swift.refcounted* @swift_rt_swift_allocObject
// CHECK-NOT:     {{retain|release}}
// CHECK:         [[T0:%.*]] = insertvalue {{.*}} [[PARTIAL_APPLY_FORWARDER:@_TPA_[A-Za-z0-9_]+]] {{.*}} [[CONTEXT_OBJ]]
// CHECK:         ret {{.*}} [[T0]]

// CHECK:       define internal i64 [[PARTIAL_APPLY_FORWARDER]]
// CHECK:         [[X_TMP:%.*]] = alloca
// CHECK:         retain
// CHECK:         retain
// CHECK-NOT:     retain
// CHECK:         release{{.*}}%1)
// CHECK:         [[RESULT:%.*]] = call i64 @indirect_consumed_captured_class_pair_param(i64 %0, %V13partial_apply14SwiftClassPair* noalias nocapture dereferenceable({{.*}}) [[X_TMP]])
// CHECK:         ret i64 [[RESULT]]

sil @partial_apply_indirect_consumed_class_pair_param : $@convention(thin) (@in SwiftClassPair) -> @callee_owned (Int) -> Int {
bb0(%x : $*SwiftClassPair):
  %f = function_ref @indirect_consumed_captured_class_pair_param : $@convention(thin) (Int, @in SwiftClassPair) -> Int
  %p = partial_apply %f(%x) : $@convention(thin) (Int, @in SwiftClassPair) -> Int
  return %p : $@callee_owned (Int) -> Int
}

sil public_external @captured_fixed_and_dependent_params : $@convention(thin) <A> (@owned SwiftClass, @in A, Int) -> ()

// CHECK-LABEL: define{{( protected)?}} { i8*, %swift.refcounted* } @partial_apply_indirect_non_fixed_layout(%C13partial_apply10SwiftClass*, %swift.opaque* noalias nocapture, i64, %swift.type* %T)
// -- Round the base offset for the T field up to T's alignment.
// CHECK:         [[T_METADATA_BASE:%.*]] = bitcast %swift.type* %T to i8***
// CHECK:         [[T_VWTABLE_ADDR:%.*]] = getelementptr {{.*}} [[T_METADATA_BASE]], [[WORD:i[0-9]+]] -1
// CHECK:         [[T_VWTABLE:%.*]] = load {{.*}} [[T_VWTABLE_ADDR]]
// CHECK:         [[T_FLAGS_ADDR:%.*]] = getelementptr {{.*}} [[T_VWTABLE]], i32 18
// CHECK:         [[T_FLAGS_PTR:%.*]] = load {{.*}} [[T_FLAGS_ADDR]]
// CHECK:         [[T_FLAGS:%.*]] = ptrtoint {{.*}} [[T_FLAGS_PTR]] to [[WORD]]
// CHECK:         [[T_ALIGN_MASK:%.*]] = and [[WORD]] [[T_FLAGS]], 65535
// CHECK:         [[T_ALIGN_MASK_NOT:%.*]] = xor [[WORD]] [[T_ALIGN_MASK]], -1
// -- 32 is 64-bit offset of 'T' field, 16 for obj header + 8 for T metadata + 8 for SwiftClass field
// CHECK-64:      [[T_UP_TO_ALIGN_1:%.*]] = add i64 32, [[T_ALIGN_MASK]]
// -- 16 is 32-bit
// CHECK-32:      [[T_UP_TO_ALIGN_1:%.*]] = add i32 16, [[T_ALIGN_MASK]]
// CHECK:         [[T_OFFSET:%.*]] = and [[WORD]] [[T_UP_TO_ALIGN_1]], [[T_ALIGN_MASK_NOT]]

// -- Add the size of T to start the Int field.
// CHECK:         [[T_SIZE_ADDR:%.*]] = getelementptr {{.*}} [[T_VWTABLE]], i32 17
// CHECK:         [[T_SIZE_PTR:%.*]] = load {{.*}} [[T_SIZE_ADDR]]
// CHECK:         [[T_SIZE:%.*]] = ptrtoint {{.*}} [[T_SIZE_PTR]] to [[WORD]]
// CHECK:         [[T_END:%.*]] = add [[WORD]] [[T_OFFSET]], [[T_SIZE]]

// -- Accumulate total alignment.
// CHECK:         [[TOTAL_ALIGN_1:%.*]] = or [[WORD]] 7, [[T_ALIGN_MASK]]

// -- Round up to alignment for the Int field.
//    TODO: could skip this since the best-known alignment is better than
//          fixed alignment of Int
// CHECK-64:      [[INT_UP_TO_ALIGN_1:%.*]] = add [[WORD]] [[T_END]], 7
// CHECK-64:      [[INT_OFFSET:%.*]] = and [[WORD]] [[INT_UP_TO_ALIGN_1]], -8
// CHECK-32:      [[INT_UP_TO_ALIGN_1:%.*]] = add [[WORD]] [[T_END]], 3
// CHECK-32:      [[INT_OFFSET:%.*]] = and [[WORD]] [[INT_UP_TO_ALIGN_1]], -4
// -- Add the size of Int, and accumulate total alignment.
// CHECK-64:      [[TOTAL_SIZE:%.*]] = add [[WORD]] [[INT_OFFSET]], 8
// CHECK-64:      [[TOTAL_ALIGN:%.*]] = or [[WORD]] [[TOTAL_ALIGN_1]], 7
// CHECK-32:      [[TOTAL_SIZE:%.*]] = add [[WORD]] [[INT_OFFSET]], 4
// CHECK-32:      [[TOTAL_ALIGN:%.*]] = or [[WORD]] [[TOTAL_ALIGN_1]], 3

// -- Allocate using the total size and alignment.
// CHECK:         [[BOX:%.*]] = call noalias %swift.refcounted* @swift_rt_swift_allocObject(%swift.type* {{.*}}, [[WORD]] [[TOTAL_SIZE]], [[WORD]] [[TOTAL_ALIGN]])
// CHECK:         [[BOX_DATA:%.*]] = bitcast %swift.refcounted* [[BOX]]
// -- metadata
// CHECK:         getelementptr inbounds {{.*}} [[BOX_DATA]], i32 0, i32 1
// -- SwiftClass
// CHECK:         getelementptr inbounds {{.*}} [[BOX_DATA]], i32 0, i32 2
// -- T
// CHECK:         [[BOX_BYTES:%.*]] = bitcast {{.*}} [[BOX_DATA]] to i8*
// CHECK:         getelementptr inbounds {{.*}} [[BOX_BYTES]], [[WORD]] [[T_OFFSET]]
// -- Int
// CHECK:         [[BOX_BYTES:%.*]] = bitcast {{.*}} [[BOX_DATA]] to i8*
// CHECK:         getelementptr inbounds {{.*}} [[BOX_BYTES]], [[WORD]] [[INT_OFFSET]]

// CHECK:         insertvalue {{.*}} [[PARTIAL_APPLY_STUB:@_TPA[A-Za-z0-9_]+]]
// CHECK:       define internal void [[PARTIAL_APPLY_STUB]](%swift.refcounted*)
sil @partial_apply_indirect_non_fixed_layout : $@convention(thin) <T> (@owned SwiftClass, @in T, Int) -> @callee_owned () -> () {
bb0(%a : $SwiftClass, %b : $*T, %c : $Int):
  %f = function_ref @captured_fixed_and_dependent_params : $@convention(thin) <B> (@owned SwiftClass, @in B, Int) -> ()
  %p = partial_apply %f<T>(%a, %b, %c) : $@convention(thin) <C> (@owned SwiftClass, @in C, Int) -> ()
  return %p : $@callee_owned () -> ()
}

sil public_external @captured_dependent_out_param : $@convention(thin) <A> (@in A) -> @out A

sil @partial_apply_with_out_param : $@convention(thin) <T> (@in T) -> @callee_owned () -> @out T {
bb0(%x : $*T):
  %f = function_ref @captured_dependent_out_param : $@convention(thin) <B> (@in B) -> @out B
  %p = partial_apply %f<T>(%x) : $@convention(thin) <C> (@in C) -> @out C
  return %p : $@callee_owned () -> @out T
}

// CHECK-LABEL: define internal void @_TPA_captured_dependent_out_param(%swift.opaque* noalias nocapture sret, %swift.refcounted*) {{.*}} {
// CHECK:         call void @captured_dependent_out_param(%swift.opaque* noalias nocapture sret

sil @partial_apply_dynamic_with_out_param : $@convention(thin) <T> (Int32, @owned @callee_owned (Int32) -> @out T) -> @callee_owned () -> @out T {
bb0(%x : $Int32, %f : $@callee_owned (Int32) -> @out T):
  %p = partial_apply %f(%x) : $@callee_owned (Int32) -> @out T
  return %p : $@callee_owned () -> @out T
}

// CHECK-LABEL: define{{( protected)?}} { i8*, %swift.refcounted* } @partial_apply_dynamic_with_out_param
// CHECK:         insertvalue {{.*}} [[FORWARDER:@_TPA[A-Za-z0-9_]*]]
// CHECK:       define internal void [[FORWARDER]]
// CHECK:         call void {{%.*}}(%swift.opaque* noalias nocapture sret

class Base {
}
sil_vtable Base {}

class Sub : Base {
}

sil_vtable Sub {}

sil @parametric_casting_closure : $@convention(thin) <C where C : Base> (@owned Base) -> @owned C {
bb0(%0 : $Base):
  %1 = unconditional_checked_cast %0 : $Base to $C
   return %1 : $C
}

sil public_external @receive_closure : $@convention(thin) <C where C : Base> (@owned @callee_owned () -> (@owned C)) -> ()

// CHECK-LABEL: define{{( protected)?}} void @test_partial_apply(%C13partial_apply4Base*)
// CHECK:  [[CTX:%.*]] = bitcast %C13partial_apply4Base* %0 to %swift.refcounted*
// CHECK:  [[TYPE:%.*]] = call %swift.type* @_TMaC13partial_apply3Sub()
// CHECK:  call void @receive_closure(i8* bitcast (%C13partial_apply3Sub* (%swift.refcounted*)* @_TPA_parametric_casting_closure.{{[0-9]+}} to i8*), %swift.refcounted* [[CTX]], %swift.type* [[TYPE]])

// CHECK-LABEL: define internal %C13partial_apply3Sub* @_TPA_parametric_casting_closure(%C13partial_apply4Base*, %swift.refcounted*)
// CHECK: [[RES:%.*]] = tail call %C13partial_apply4Base* @parametric_casting_closure
// CHECK: [[CASTED:%.*]] = bitcast %C13partial_apply4Base* [[RES]] to %C13partial_apply3Sub*
// CHECK: ret %C13partial_apply3Sub* [[CASTED]]


// CHECK-LABEL: define internal %C13partial_apply3Sub* @_TPA_parametric_casting_closure.{{[0-9]+}}(%swift.refcounted*)
// CHECK:  [[TYPE:%.*]] = call %swift.type* @_TMaC13partial_apply3Sub()
// CHECK:  [[CTX:%.*]] = bitcast %swift.refcounted* %0 to %C13partial_apply4Base*
// CHECK:  [[CALL:%.*]] = tail call %C13partial_apply4Base* @parametric_casting_closure(%C13partial_apply4Base* [[CTX]], %swift.type* [[TYPE]])
// CHECK:  [[CAST:%.*]] = bitcast %C13partial_apply4Base* [[CALL]] to %C13partial_apply3Sub*
// CHECK:  ret %C13partial_apply3Sub* [[CAST]]

sil @test_partial_apply : $@convention(thin) (@owned Base) -> () {
bb0(%0 : $Base):
 %1 = function_ref @parametric_casting_closure : $@convention(thin) <C where C : Base> (@owned Base) -> @owned C
 %6 = partial_apply %1<Sub>() : $@convention(thin) <C where C : Base> (@owned Base) -> @owned C
 %2 = partial_apply %1<Sub>(%0) : $@convention(thin) <C where C : Base> (@owned Base) -> @owned C
 %3 = function_ref @receive_closure : $@convention(thin) <C where C : Base> (@owned @callee_owned () -> (@owned C)) -> ()
 %4 = apply %3<Sub>(%2) : $@convention(thin) <C where C : Base> (@owned @callee_owned () -> (@owned C)) -> ()
 %5 = tuple ()
 return %5 : $()
}

sil public_external @partial_empty_box : $@convention(thin) (@owned @box (), @inout ()) -> ()

// CHECK-LABEL: define{{( protected)?}} void @empty_box()
sil @empty_box : $@convention(thin) () -> () {
entry:
  // CHECK: store %swift.refcounted* null
  // CHECK: store %swift.opaque* undef
  %b = alloc_box $()
  %ba = project_box %b : $@box ()
  %f = function_ref @partial_empty_box : $@convention(thin) (@owned @box (), @inout ()) -> ()
  %g = partial_apply %f(%b, %ba) : $@convention(thin) (@owned @box (), @inout ()) -> ()
  return undef : $()
}

protocol P0 {}
protocol P1 { associatedtype X : P0 }
protocol P2 { associatedtype Y : P1 }

sil hidden_external @complex_generic_function : $@convention(thin) <T where T : P2, T.Y : P2> (Int) -> ()

sil @partial_apply_complex_generic_function : $@convention(thin) <T where T : P2, T.Y : P2> (Int) -> () {
bb0(%0 : $Int):
  %fn = function_ref @complex_generic_function : $@convention(thin) <T where T : P2, T.Y : P2> (Int) -> ()
  %pa = partial_apply %fn <T, T.Y, T.Y.X, T.Y.Y, T.Y.Y.X>(%0) : $@convention(thin) <T where T : P2, T.Y : P1, T.Y : P2, T.Y.X : P0, T.Y.Y : P1, T.Y.Y.X : P0> (Int) -> ()
  %result = tuple ()
  return %result : $()
}
// CHECK-LABEL: define void @partial_apply_complex_generic_function(i64, %swift.type* %T, i8** %T.P2, i8** %T.Y.P2)
// CHECK:      [[T0:%.*]] = call noalias %swift.refcounted* @swift_rt_swift_allocObject(%swift.type* {{.*}}, i64 48, i64 7)
// CHECK-NEXT: [[T1:%.*]] = bitcast %swift.refcounted* [[T0]] to <{ %swift.refcounted, [24 x i8], %Si }>*
// CHECK-NEXT: [[T2:%.*]] = getelementptr inbounds <{ %swift.refcounted, [24 x i8], %Si }>, <{ %swift.refcounted, [24 x i8], %Si }>* [[T1]], i32 0, i32 1
// CHECK-NEXT: [[BUFFER:%.*]] = bitcast [24 x i8]* [[T2]] to %swift.type**
// CHECK-NEXT: store %swift.type* %T, %swift.type** [[BUFFER]], align 8
// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds %swift.type*, %swift.type** [[BUFFER]], i32 1
// CHECK-NEXT: [[T1:%.*]] = bitcast %swift.type** [[T0]] to i8***
// CHECK-NEXT: store i8** %T.P2, i8*** [[T1]], align 8
// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds %swift.type*, %swift.type** [[BUFFER]], i32 2
// CHECK-NEXT: [[T1:%.*]] = bitcast %swift.type** [[T0]] to i8***
// CHECK-NEXT: store i8** %T.Y.P2, i8*** [[T1]], align 8

// CHECK-LABEL: define internal void @_TPA_complex_generic_function(%swift.refcounted*)
// CHECK:      [[T0:%.*]] = bitcast %swift.refcounted* %0 to <{ %swift.refcounted, [24 x i8], %Si }>*
// CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds <{ %swift.refcounted, [24 x i8], %Si }>, <{ %swift.refcounted, [24 x i8], %Si }>* [[T0]], i32 0, i32 1
// CHECK-NEXT: [[BUFFER:%.*]] = bitcast [24 x i8]* [[T1]] to %swift.type**
// CHECK-NEXT: %T = load %swift.type*, %swift.type** [[BUFFER]], align 8
// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds %swift.type*, %swift.type** [[BUFFER]], i32 1
// CHECK-NEXT: [[T1:%.*]] = bitcast %swift.type** [[T0]] to i8***
// CHECK-NEXT: %T.P2 = load i8**, i8*** [[T1]], align 8
// CHECK-NEXT: [[T0:%.*]] = getelementptr inbounds %swift.type*, %swift.type** [[BUFFER]], i32 2
// CHECK-NEXT: [[T1:%.*]] = bitcast %swift.type** [[T0]] to i8***
// CHECK-NEXT: %T.Y.P2 = load i8**, i8*** [[T1]], align 8

struct ComplexBoundedType<T: P2> {}

// SR-901: Ensure that a partial_apply which captures bound generic type
// metadata doesn't crash when restoring the generic context.

sil hidden_external @generic_function : $@convention(thin) <T> () -> ()
sil @partial_apply_with_generic_type : $@convention(thin) <U: P2> () -> () {
bb0:
  %fn = function_ref @generic_function : $@convention(thin) <T> () -> ()
  %pa = partial_apply %fn <ComplexBoundedType<U>>() : $@convention(thin) <T> () -> ()
  %result = tuple ()
  return %result : $()
}