// RUN: %target-swift-frontend -emit-ir %s | %FileCheck %s

import Builtin

struct Huge { var x, y, z, w, a, b, c, d, e, f: Builtin.Int32 }

// CHECK-LABEL: define{{( dllexport)?}}{{( protected)?}} swiftcc void @arguments_in_def(i32* nocapture dereferenceable(4) %0, i32* noalias nocapture dereferenceable(4) %1, i32* noalias nocapture dereferenceable(4) %2, %T14argument_attrs4HugeV* noalias nocapture dereferenceable(40) %3, %swift.opaque* noalias nocapture %4, %swift.opaque* noalias nocapture %5, %swift.type* %T)
sil @arguments_in_def : $@convention(thin) <T> (@inout Builtin.Int32, @in Builtin.Int32, @in_guaranteed Builtin.Int32, Huge, @in T, @in ()) -> () {
entry(%1 : $*Builtin.Int32, %2 : $*Builtin.Int32, %3 : $*Builtin.Int32, %4 : $Huge, %5 : $*T, %6 : $*()):
  // CHECK: call swiftcc void @arguments_in_decl(i32* nocapture dereferenceable(4) {{%.*}}, i32* noalias nocapture dereferenceable(4) {{%.*}}, i32* noalias nocapture dereferenceable(4) {{%.*}}, %T14argument_attrs4HugeV* noalias nocapture dereferenceable(40) {{%.*}}, %swift.opaque* noalias nocapture {{%.*}}, %swift.opaque* noalias nocapture {{%.*}}, %swift.type* %T)
  %f = function_ref @arguments_in_decl : $@convention(thin) <T> (@inout Builtin.Int32, @in Builtin.Int32, @in_guaranteed Builtin.Int32, Huge, @in T, @in ()) -> ()
  %x = apply %f<T>(%1, %2, %3, %4, %5, %6) : $@convention(thin) <T> (@inout Builtin.Int32, @in Builtin.Int32, @in_guaranteed Builtin.Int32, Huge, @in T, @in ()) -> ()
  // CHECK: call swiftcc void @arguments_in_def(i32* nocapture dereferenceable(4) {{%.*}}, i32* noalias nocapture dereferenceable(4) {{%.*}}, i32* noalias nocapture dereferenceable(4) {{%.*}}, %T14argument_attrs4HugeV* noalias nocapture dereferenceable(40) {{%.*}}, %swift.opaque* noalias nocapture {{%.*}}, %swift.opaque* noalias nocapture {{%.*}}, %swift.type* %T)
  %g = function_ref @arguments_in_def : $@convention(thin) <T> (@inout Builtin.Int32, @in Builtin.Int32, @in_guaranteed Builtin.Int32, Huge, @in T, @in ()) -> ()
  %y = apply %g<T>(%1, %2, %3, %4, %5, %6) : $@convention(thin) <T> (@inout Builtin.Int32, @in Builtin.Int32, @in_guaranteed Builtin.Int32, Huge, @in T, @in ()) -> ()
  return undef : $()
}

// CHECK-LABEL: declare{{( dllimport)?}} swiftcc void @arguments_in_decl(i32* nocapture dereferenceable(4), i32* noalias nocapture dereferenceable(4), i32* noalias nocapture dereferenceable(4), %T14argument_attrs4HugeV* noalias nocapture dereferenceable(40), %swift.opaque* noalias nocapture, %swift.opaque* noalias nocapture, %swift.type*)
sil @arguments_in_decl : $@convention(thin) <T> (@inout Builtin.Int32, @in Builtin.Int32, @in_guaranteed Builtin.Int32, Huge, @in T, @in ()) -> ()

// CHECK-LABEL: define{{( dllexport)?}}{{( protected)?}} swiftcc void @arguments_in_def_out(i32* noalias nocapture sret %0, i32* nocapture dereferenceable(4) %1, i32* noalias nocapture dereferenceable(4) %2, i32* noalias nocapture dereferenceable(4) %3, %T14argument_attrs4HugeV* noalias nocapture dereferenceable(40) %4, %swift.opaque* noalias nocapture %5, %swift.opaque* noalias nocapture %6, %swift.type* %T)
sil @arguments_in_def_out : $@convention(thin) <T> (@inout Builtin.Int32, @in Builtin.Int32, @in_guaranteed Builtin.Int32, Huge, @in T, @in ()) -> @out Builtin.Int32 {
entry(%0 : $*Builtin.Int32, %1 : $*Builtin.Int32, %2 : $*Builtin.Int32, %3 : $*Builtin.Int32, %4 : $Huge, %5 : $*T, %6 : $*()):
  // CHECK: call swiftcc void @arguments_in_decl_out(i32* noalias nocapture sret {{%.*}}, i32* nocapture dereferenceable(4) {{%.*}}, i32* noalias nocapture dereferenceable(4) {{%.*}}, i32* noalias nocapture dereferenceable(4) {{%.*}}, %T14argument_attrs4HugeV* noalias nocapture dereferenceable(40) {{%.*}}, %swift.opaque* noalias nocapture {{%.*}}, %swift.opaque* noalias nocapture {{%.*}}, %swift.type* {{%.*}})
  %f = function_ref @arguments_in_decl_out : $@convention(thin) <T> (@inout Builtin.Int32, @in Builtin.Int32, @in_guaranteed Builtin.Int32, Huge, @in T, @in ()) -> @out Builtin.Int32
  %x = apply %f<T>(%0, %1, %2, %3, %4, %5, %6) : $@convention(thin) <T> (@inout Builtin.Int32, @in Builtin.Int32, @in_guaranteed Builtin.Int32, Huge, @in T, @in ()) -> @out Builtin.Int32
  // CHECK: call swiftcc void @arguments_in_def_out(i32* noalias nocapture sret {{%.*}}, i32* nocapture dereferenceable(4) {{%.*}}, i32* noalias nocapture dereferenceable(4) {{%.*}}, i32* noalias nocapture dereferenceable(4) {{%.*}}, %T14argument_attrs4HugeV* noalias nocapture dereferenceable(40) {{%.*}}, %swift.opaque* noalias nocapture {{%.*}}, %swift.opaque* noalias nocapture {{%.*}}, %swift.type* {{%.*}})
  %g = function_ref @arguments_in_def_out : $@convention(thin) <T> (@inout Builtin.Int32, @in Builtin.Int32, @in_guaranteed Builtin.Int32, Huge, @in T, @in ()) -> @out Builtin.Int32
  %y = apply %g<T>(%0, %1, %2, %3, %4, %5, %6) : $@convention(thin) <T> (@inout Builtin.Int32, @in Builtin.Int32, @in_guaranteed Builtin.Int32, Huge, @in T, @in ()) -> @out Builtin.Int32
  return undef : $()
}

// CHECK-LABEL: declare{{( dllimport)?}} swiftcc void @arguments_in_decl_out(i32* noalias nocapture sret, i32* nocapture dereferenceable(4), i32* noalias nocapture dereferenceable(4), i32* noalias nocapture dereferenceable(4), %T14argument_attrs4HugeV* noalias nocapture dereferenceable(40), %swift.opaque* noalias nocapture, %swift.opaque* noalias nocapture, %swift.type*)
sil @arguments_in_decl_out : $@convention(thin) <T> (@inout Builtin.Int32, @in Builtin.Int32, @in_guaranteed Builtin.Int32, Huge, @in T, @in ()) -> @out Builtin.Int32

// CHECK-LABEL: define{{( dllexport)?}}{{( protected)?}} swiftcc void @arguments_in_def_huge_ret(%T14argument_attrs4HugeV* noalias nocapture sret %0, i32* nocapture dereferenceable(4) %1, i32* noalias nocapture dereferenceable(4) %2, i32* noalias nocapture dereferenceable(4) %3, %T14argument_attrs4HugeV* noalias nocapture dereferenceable(40) %4, %swift.opaque* noalias nocapture %5, %swift.opaque* noalias nocapture %6, %swift.type* %T)
sil @arguments_in_def_huge_ret : $@convention(thin) <T> (@inout Builtin.Int32, @in Builtin.Int32, @in_guaranteed Builtin.Int32, Huge, @in T, @in ()) -> Huge {
entry(%1 : $*Builtin.Int32, %2 : $*Builtin.Int32, %3 : $*Builtin.Int32, %4 : $Huge, %5 : $*T, %6 : $*()):
  %f = function_ref @arguments_in_decl_huge_ret : $@convention(thin) <T> (@inout Builtin.Int32, @in Builtin.Int32, @in_guaranteed Builtin.Int32, Huge, @in T, @in ()) -> Huge
  // CHECK: call swiftcc void @arguments_in_decl_huge_ret(%T14argument_attrs4HugeV* noalias nocapture sret {{%.*}}, i32* nocapture dereferenceable(4) {{%.*}}, i32* noalias nocapture dereferenceable(4) {{%.*}}, i32* noalias nocapture dereferenceable(4) {{%.*}}, %T14argument_attrs4HugeV* noalias nocapture dereferenceable(40) {{%.*}}, %swift.opaque* noalias nocapture {{%.*}}, %swift.opaque* noalias nocapture {{%.*}}, %swift.type* {{%.*}})
  %x = apply %f<T>(%1, %2, %3, %4, %5, %6) : $@convention(thin) <T> (@inout Builtin.Int32, @in Builtin.Int32, @in_guaranteed Builtin.Int32, Huge, @in T, @in ()) -> Huge
  // CHECK: call swiftcc void @arguments_in_def_huge_ret(%T14argument_attrs4HugeV* noalias nocapture sret {{%.*}}, i32* nocapture dereferenceable(4) {{%.*}}, i32* noalias nocapture dereferenceable(4) {{%.*}}, i32* noalias nocapture dereferenceable(4) {{%.*}}, %T14argument_attrs4HugeV* noalias nocapture dereferenceable(40) {{%.*}}, %swift.opaque* noalias nocapture {{%.*}}, %swift.opaque* noalias nocapture {{%.*}}, %swift.type* {{%.*}})
  %g = function_ref @arguments_in_def_huge_ret : $@convention(thin) <T> (@inout Builtin.Int32, @in Builtin.Int32, @in_guaranteed Builtin.Int32, Huge, @in T, @in ()) -> Huge
  %y = apply %g<T>(%1, %2, %3, %4, %5, %6) : $@convention(thin) <T> (@inout Builtin.Int32, @in Builtin.Int32, @in_guaranteed Builtin.Int32, Huge, @in T, @in ()) -> Huge
  return %y : $Huge
}

// CHECK-LABEL: declare{{( dllimport)?}} swiftcc void @arguments_in_decl_huge_ret(%T14argument_attrs4HugeV* noalias nocapture sret, i32* nocapture dereferenceable(4), i32* noalias nocapture dereferenceable(4), i32* noalias nocapture dereferenceable(4), %T14argument_attrs4HugeV* noalias nocapture dereferenceable(40), %swift.opaque* noalias nocapture, %swift.opaque* noalias nocapture, %swift.type*)
sil @arguments_in_decl_huge_ret : $@convention(thin) <T> (@inout Builtin.Int32, @in Builtin.Int32, @in_guaranteed Builtin.Int32, Huge, @in T, @in ()) -> Huge


// rdar://problem/24727411 - Incorrect 'sret' attribute applied to function with multiple indirect
// returns, causing problems when calling runtime functions
sil @multiple_out_params : $@convention(thin) <T, U> () -> (@out T, @out U) {
bb0(%0 : $*T, %1 : $*U):
  %result = tuple ()
  return %result : $()
}