test/SILOptimizer/definite_init_scalarization_test.sil

// RUN: %target-sil-opt -enable-sil-verify-all %s -definite-init -raw-sil-inst-lowering | %FileCheck %s
//
// Make sure that we properly scalarize tuples.
//
// TODO: This should be split out into its own pass /before/ DI rather than
// running during DI. Even once that happens, it is important that we update
// this test so that the test is in its post scalarization state so we can
// verify that DI can properly look through destructures.

sil_stage raw

import Builtin

struct Int {
  var _value: Builtin.Int64
}

struct TripleInt {
  var a, b, c: Int
}

struct ObjectValue {
  var a : Builtin.NativeObject
}

// CHECK-LABEL: sil [ossa] @test_store_trivial : $@convention(thin) (TripleInt, TripleInt, TripleInt) -> () {
// CHECK: bb0([[ARG0:%.*]] : $TripleInt, [[ARG1:%.*]] : $TripleInt, [[ARG2:%.*]] : $TripleInt):
// CHECK:   [[BOX:%.*]] = alloc_box
// CHECK:   [[PB_BOX:%.*]] = project_box [[BOX]]
// CHECK:   [[ELT0:%.*]] = tuple_element_addr [[PB_BOX]] : $*(TripleInt, (TripleInt, TripleInt)), 0
// CHECK:   [[ELT1:%.*]] = tuple_element_addr [[PB_BOX]] : $*(TripleInt, (TripleInt, TripleInt)), 1
// CHECK:   [[ELT10:%.*]] = tuple_element_addr [[ELT1]] : $*(TripleInt, TripleInt), 0
// CHECK:   [[ELT11:%.*]] = tuple_element_addr [[ELT1]] : $*(TripleInt, TripleInt), 1
// CHECK:   [[RHS_TUP:%.*]] = tuple ([[ARG0]] : ${{.*}}, [[ARG1:%.*]] : ${{.*}})
// CHECK:   [[TUP:%.*]] = tuple ([[ARG2:%.*]] : ${{.*}}, [[RHS_TUP]] : ${{.*}})
// CHECK:   ([[DESTRUCTURE_TUP_LHS:%.*]], [[DESTRUCTURE_TUP_RHS:%.*]]) = destructure_tuple [[TUP]] : $(TripleInt, (TripleInt, TripleInt))
// CHECK:   store [[DESTRUCTURE_TUP_LHS]] to [trivial] [[ELT0]]
// CHECK:   ([[DESTRUCTURE_TUP_RHS_LHS:%.*]], [[DESTRUCTURE_TUP_RHS_RHS:%.*]]) = destructure_tuple [[DESTRUCTURE_TUP_RHS]] : $(TripleInt, TripleInt)
// CHECK:   store [[DESTRUCTURE_TUP_RHS_LHS]] to [trivial] [[ELT10]]
// CHECK:   store [[DESTRUCTURE_TUP_RHS_RHS]] to [trivial] [[ELT11]]
// CHECK:   destroy_value [[BOX]]
// CHECK: } // end sil function 'test_store_trivial'
sil [ossa] @test_store_trivial : $@convention(thin) (TripleInt, TripleInt, TripleInt) -> () {
bb0(%0 : $TripleInt, %1 : $TripleInt, %1a : $TripleInt):
  %2 = alloc_box $<τ_0_0> { var τ_0_0 } <(TripleInt, (TripleInt, TripleInt))>
  %3 = project_box %2 : $<τ_0_0> { var τ_0_0 } <(TripleInt, (TripleInt, TripleInt))>, 0
  %4 = mark_uninitialized [var] %3 : $*(TripleInt, (TripleInt, TripleInt))
  %5 = tuple(%0 : $TripleInt, %1 : $TripleInt)
  %6 = tuple(%1a : $TripleInt, %5 : $(TripleInt, TripleInt))
  store %6 to [trivial] %4 : $*(TripleInt, (TripleInt, TripleInt))
  destroy_value %2 : $<τ_0_0> { var τ_0_0 } <(TripleInt, (TripleInt, TripleInt))>
  %9999 = tuple()
  return %9999 : $()
}

// CHECK-LABEL: sil [ossa] @test_store_owned : $@convention(thin) (@owned Builtin.NativeObject, @owned Builtin.NativeObject, @owned Builtin.NativeObject) -> () {
// CHECK: bb0([[ARG0:%.*]] : @owned $Builtin.NativeObject, [[ARG1:%.*]] : @owned $Builtin.NativeObject, [[ARG2:%.*]] : @owned $Builtin.NativeObject):
// CHECK:   [[BOX:%.*]] = alloc_box
// CHECK:   [[PB_BOX:%.*]] = project_box [[BOX]]
// CHECK:   [[ELT0:%.*]] = tuple_element_addr [[PB_BOX]] : $*(Builtin.NativeObject, (Builtin.NativeObject, Builtin.NativeObject)), 0
// CHECK:   [[ELT1:%.*]] = tuple_element_addr [[PB_BOX]] : $*(Builtin.NativeObject, (Builtin.NativeObject, Builtin.NativeObject)), 1
// CHECK:   [[ELT10:%.*]] = tuple_element_addr [[ELT1]] : $*(Builtin.NativeObject, Builtin.NativeObject), 0
// CHECK:   [[ELT11:%.*]] = tuple_element_addr [[ELT1]] : $*(Builtin.NativeObject, Builtin.NativeObject), 1
// CHECK:   [[RHS_TUP:%.*]] = tuple ([[ARG0]] : ${{.*}}, [[ARG1:%.*]] : ${{.*}})
// CHECK:   [[TUP:%.*]] = tuple ([[ARG2:%.*]] : ${{.*}}, [[RHS_TUP]] : ${{.*}})
// CHECK:   ([[DESTRUCTURE_TUP_LHS:%.*]], [[DESTRUCTURE_TUP_RHS:%.*]]) = destructure_tuple [[TUP]] : $(Builtin.NativeObject, (Builtin.NativeObject, Builtin.NativeObject))
// CHECK:   store [[DESTRUCTURE_TUP_LHS]] to [init] [[ELT0]]
// CHECK:   ([[DESTRUCTURE_TUP_RHS_LHS:%.*]], [[DESTRUCTURE_TUP_RHS_RHS:%.*]]) = destructure_tuple [[DESTRUCTURE_TUP_RHS]] : $(Builtin.NativeObject, Builtin.NativeObject)
// CHECK:   store [[DESTRUCTURE_TUP_RHS_LHS]] to [init] [[ELT10]]
// CHECK:   store [[DESTRUCTURE_TUP_RHS_RHS]] to [init] [[ELT11]]
// CHECK:   destroy_value [[BOX]]
// CHECK: } // end sil function 'test_store_owned'
sil [ossa] @test_store_owned : $@convention(thin) (@owned Builtin.NativeObject, @owned Builtin.NativeObject, @owned Builtin.NativeObject) -> () {
bb0(%0 : @owned $Builtin.NativeObject, %1 : @owned $Builtin.NativeObject, %1a : @owned $Builtin.NativeObject):
  %2 = alloc_box $<τ_0_0> { var τ_0_0 } <(Builtin.NativeObject, (Builtin.NativeObject, Builtin.NativeObject))>
  %3 = project_box %2 : $<τ_0_0> { var τ_0_0 } <(Builtin.NativeObject, (Builtin.NativeObject, Builtin.NativeObject))>, 0
  %4 = mark_uninitialized [var] %3 : $*(Builtin.NativeObject, (Builtin.NativeObject, Builtin.NativeObject))
  %5 = tuple(%0 : $Builtin.NativeObject, %1 : $Builtin.NativeObject)
  %6 = tuple(%1a : $Builtin.NativeObject, %5 : $(Builtin.NativeObject, Builtin.NativeObject))
  store %6 to [init] %4 : $*(Builtin.NativeObject, (Builtin.NativeObject, Builtin.NativeObject))
  destroy_value %2 : $<τ_0_0> { var τ_0_0 } <(Builtin.NativeObject, (Builtin.NativeObject, Builtin.NativeObject))>
  %9999 = tuple()
  return %9999 : $()
}

// CHECK-LABEL: sil [ossa] @test_assign_trivial : $@convention(thin) (TripleInt, TripleInt, TripleInt) -> () {
// CHECK: bb0([[ARG0:%.*]] : $TripleInt, [[ARG1:%.*]] : $TripleInt, [[ARG2:%.*]] : $TripleInt):
// CHECK:   [[BOX:%.*]] = alloc_box
// CHECK:   [[PB_BOX:%.*]] = project_box [[BOX]]
// CHECK:   [[ELT0:%.*]] = tuple_element_addr [[PB_BOX]] : $*(TripleInt, (TripleInt, TripleInt)), 0
// CHECK:   [[ELT1:%.*]] = tuple_element_addr [[PB_BOX]] : $*(TripleInt, (TripleInt, TripleInt)), 1
// CHECK:   [[ELT10:%.*]] = tuple_element_addr [[ELT1]] : $*(TripleInt, TripleInt), 0
// CHECK:   [[ELT11:%.*]] = tuple_element_addr [[ELT1]] : $*(TripleInt, TripleInt), 1
// CHECK:   [[RHS_TUP:%.*]] = tuple ([[ARG0]] : ${{.*}}, [[ARG1:%.*]] : ${{.*}})
// CHECK:   [[TUP:%.*]] = tuple ([[ARG2:%.*]] : ${{.*}}, [[RHS_TUP]] : ${{.*}})
// CHECK:   ([[DESTRUCTURE_TUP_LHS:%.*]], [[DESTRUCTURE_TUP_RHS:%.*]]) = destructure_tuple [[TUP]] : $(TripleInt, (TripleInt, TripleInt))
// CHECK:   store [[DESTRUCTURE_TUP_LHS]] to [trivial] [[ELT0]]
// CHECK:   ([[DESTRUCTURE_TUP_RHS_LHS:%.*]], [[DESTRUCTURE_TUP_RHS_RHS:%.*]]) = destructure_tuple [[DESTRUCTURE_TUP_RHS]] : $(TripleInt, TripleInt)
// CHECK:   store [[DESTRUCTURE_TUP_RHS_LHS]] to [trivial] [[ELT10]]
// CHECK:   store [[DESTRUCTURE_TUP_RHS_RHS]] to [trivial] [[ELT11]]
// CHECK:   destroy_value [[BOX]]
// CHECK: } // end sil function 'test_assign_trivial'
sil [ossa] @test_assign_trivial : $@convention(thin) (TripleInt, TripleInt, TripleInt) -> () {
bb0(%0 : $TripleInt, %1 : $TripleInt, %1a : $TripleInt):
  %2 = alloc_box $<τ_0_0> { var τ_0_0 } <(TripleInt, (TripleInt, TripleInt))>
  %3 = project_box %2 : $<τ_0_0> { var τ_0_0 } <(TripleInt, (TripleInt, TripleInt))>, 0
  %4 = mark_uninitialized [var] %3 : $*(TripleInt, (TripleInt, TripleInt))
  %5 = tuple(%0 : $TripleInt, %1 : $TripleInt)
  %6 = tuple(%1a : $TripleInt, %5 : $(TripleInt, TripleInt))
  assign %6 to %4 : $*(TripleInt, (TripleInt, TripleInt))
  destroy_value %2 : $<τ_0_0> { var τ_0_0 } <(TripleInt, (TripleInt, TripleInt))>
  %9999 = tuple()
  return %9999 : $()
}

// CHECK-LABEL: sil [ossa] @test_assign_trivial_2 : $@convention(thin) (TripleInt, TripleInt, TripleInt) -> () {
// CHECK: bb0([[ARG0:%.*]] : $TripleInt, [[ARG1:%.*]] : $TripleInt, [[ARG2:%.*]] : $TripleInt):
// CHECK:   [[BOX:%.*]] = alloc_box $<τ_0_0> { var τ_0_0 } <(TripleInt, (TripleInt, TripleInt))>
// CHECK:   [[PROJ_BOX:%.*]] = project_box [[BOX]] : $<τ_0_0> { var τ_0_0 } <(TripleInt, (TripleInt, TripleInt))>, 0
// CHECK:   [[PROJ_BOX_0:%.*]] = tuple_element_addr [[PROJ_BOX]] : $*(TripleInt, (TripleInt, TripleInt)), 0
// CHECK:   [[PROJ_BOX_1:%.*]] = tuple_element_addr [[PROJ_BOX]] : $*(TripleInt, (TripleInt, TripleInt)), 1
// CHECK:   [[PROJ_BOX_10:%.*]] = tuple_element_addr %6 : $*(TripleInt, TripleInt), 0
// CHECK:   [[PROJ_BOX_11:%.*]] = tuple_element_addr %6 : $*(TripleInt, TripleInt), 1
// CHECK:   [[TUP11:%.*]] = tuple ([[ARG0]] : $TripleInt, [[ARG1]] : $TripleInt)
// CHECK:   [[TUP1:%.*]] = tuple ([[ARG2]] : $TripleInt, [[TUP11]] : $(TripleInt, TripleInt))
// CHECK:   [[TUP1_2nd:%.*]] = tuple ([[ARG2]] : $TripleInt, [[TUP11]] : $(TripleInt, TripleInt))
// CHECK:   ([[TUP1_D_0:%.*]], [[TUP1_D_1:%.*]]) = destructure_tuple [[TUP1]] : $(TripleInt, (TripleInt, TripleInt))
// CHECK:   store [[TUP1_D_0]] to [trivial] [[PROJ_BOX_0]] : $*TripleInt
// CHECK:   ([[TUP1_D_1_0:%.*]], [[TUP1_D_1_1:%.*]]) = destructure_tuple [[TUP1_D_1]] : $(TripleInt, TripleInt)
// CHECK:   store [[TUP1_D_1_0]] to [trivial] [[PROJ_BOX_10]] : $*TripleInt
// CHECK:   store [[TUP1_D_1_1]] to [trivial] [[PROJ_BOX_11]] : $*TripleInt
// CHECK:   ([[TUP1_2nd_0:%.*]], [[TUP1_2nd_1:%.*]]) = destructure_tuple [[TUP1_2nd]] : $(TripleInt, (TripleInt, TripleInt))
// CHECK:   store [[TUP1_2nd_0]] to [trivial] [[PROJ_BOX_0]] : $*TripleInt
// CHECK:   ([[TUP1_2nd_10:%.*]], [[TUP1_2nd_11:%.*]]) = destructure_tuple [[TUP1_2nd_1]] : $(TripleInt, TripleInt)
// CHECK:   store [[TUP1_2nd_10]] to [trivial] [[PROJ_BOX_10]] : $*TripleInt
// CHECK:   store [[TUP1_2nd_11]] to [trivial] [[PROJ_BOX_11]] : $*TripleInt
// CHECK:   destroy_value [[BOX]] : $<τ_0_0> { var τ_0_0 } <(TripleInt, (TripleInt, TripleInt))>
// CHECK: } // end sil function 'test_assign_trivial_2'
sil [ossa] @test_assign_trivial_2 : $@convention(thin) (TripleInt, TripleInt, TripleInt) -> () {
bb0(%0 : $TripleInt, %1 : $TripleInt, %1a : $TripleInt):
  %2 = alloc_box $<τ_0_0> { var τ_0_0 } <(TripleInt, (TripleInt, TripleInt))>
  %3 = project_box %2 : $<τ_0_0> { var τ_0_0 } <(TripleInt, (TripleInt, TripleInt))>, 0
  %4 = mark_uninitialized [var] %3 : $*(TripleInt, (TripleInt, TripleInt))
  %5 = tuple(%0 : $TripleInt, %1 : $TripleInt)
  %6 = tuple(%1a : $TripleInt, %5 : $(TripleInt, TripleInt))
  %7 = tuple(%1a : $TripleInt, %5 : $(TripleInt, TripleInt))
  assign %6 to %4 : $*(TripleInt, (TripleInt, TripleInt))
  assign %7 to %4 : $*(TripleInt, (TripleInt, TripleInt))
  destroy_value %2 : $<τ_0_0> { var τ_0_0 } <(TripleInt, (TripleInt, TripleInt))>
  %9999 = tuple()
  return %9999 : $()
}

// CHECK-LABEL: sil [ossa] @test_assign_owned : $@convention(thin) (@owned Builtin.NativeObject, @owned Builtin.NativeObject, @owned Builtin.NativeObject) -> () {
// CHECK: bb0([[ARG0:%.*]] : @owned $Builtin.NativeObject, [[ARG1:%.*]] : @owned $Builtin.NativeObject, [[ARG2:%.*]] : @owned $Builtin.NativeObject):
// CHECK:   [[BOX:%.*]] = alloc_box $<τ_0_0> { var τ_0_0 } <(Builtin.NativeObject, (Builtin.NativeObject, Builtin.NativeObject))>
// CHECK:   [[PROJ_BOX:%.*]] = project_box [[BOX]] : $<τ_0_0> { var τ_0_0 } <(Builtin.NativeObject, (Builtin.NativeObject, Builtin.NativeObject))>, 0
// CHECK:   [[PROJ_BOX_0:%.*]] = tuple_element_addr [[PROJ_BOX]] : $*(Builtin.NativeObject, (Builtin.NativeObject, Builtin.NativeObject)), 0
// CHECK:   [[PROJ_BOX_1:%.*]] = tuple_element_addr [[PROJ_BOX]] : $*(Builtin.NativeObject, (Builtin.NativeObject, Builtin.NativeObject)), 1
// CHECK:   [[PROJ_BOX_10:%.*]] = tuple_element_addr [[PROJ_BOX_1]] : $*(Builtin.NativeObject, Builtin.NativeObject), 0
// CHECK:   [[PROJ_BOX_11:%.*]] = tuple_element_addr [[PROJ_BOX_1]] : $*(Builtin.NativeObject, Builtin.NativeObject), 1
// CHECK:   [[TUP_1:%.*]] = tuple ([[ARG0]] : $Builtin.NativeObject, [[ARG1]] : $Builtin.NativeObject)
// CHECK:   [[TUP:%.*]] = tuple ([[ARG2]] : $Builtin.NativeObject, [[TUP_1]] : $(Builtin.NativeObject, Builtin.NativeObject))
// CHECK:   ([[TUP_D_0:%.*]], [[TUP_D_1:%.*]]) = destructure_tuple [[TUP]] : $(Builtin.NativeObject, (Builtin.NativeObject, Builtin.NativeObject))
// CHECK:   store [[TUP_D_0]] to [init] [[PROJ_BOX_0]] : $*Builtin.NativeObject
// CHECK:   ([[TUP_D_10:%.*]], [[TUP_D_11:%.*]]) = destructure_tuple [[TUP_D_1]] : $(Builtin.NativeObject, Builtin.NativeObject)
// CHECK:   store [[TUP_D_10]] to [init] [[PROJ_BOX_10]] : $*Builtin.NativeObject
// CHECK:   store [[TUP_D_11]] to [init] [[PROJ_BOX_11]] : $*Builtin.NativeObject
// CHECK:   destroy_value [[BOX]] : $<τ_0_0> { var τ_0_0 } <(Builtin.NativeObject, (Builtin.NativeObject, Builtin.NativeObject))>
// CHECK: } // end sil function 'test_assign_owned'
sil [ossa] @test_assign_owned : $@convention(thin) (@owned Builtin.NativeObject, @owned Builtin.NativeObject, @owned Builtin.NativeObject) -> () {
bb0(%0 : @owned $Builtin.NativeObject, %1 : @owned $Builtin.NativeObject, %1a : @owned $Builtin.NativeObject):
  %2 = alloc_box $<τ_0_0> { var τ_0_0 } <(Builtin.NativeObject, (Builtin.NativeObject, Builtin.NativeObject))>
  %3 = project_box %2 : $<τ_0_0> { var τ_0_0 } <(Builtin.NativeObject, (Builtin.NativeObject, Builtin.NativeObject))>, 0
  %4 = mark_uninitialized [var] %3 : $*(Builtin.NativeObject, (Builtin.NativeObject, Builtin.NativeObject))
  %5 = tuple(%0 : $Builtin.NativeObject, %1 : $Builtin.NativeObject)
  %6 = tuple(%1a : $Builtin.NativeObject, %5 : $(Builtin.NativeObject, Builtin.NativeObject))
  assign %6 to %4 : $*(Builtin.NativeObject, (Builtin.NativeObject, Builtin.NativeObject))
  destroy_value %2 : $<τ_0_0> { var τ_0_0 } <(Builtin.NativeObject, (Builtin.NativeObject, Builtin.NativeObject))>
  %9999 = tuple()
  return %9999 : $()
}

// CHECK-LABEL: sil [ossa] @test_assigned_owned_2 : $@convention(thin) (@owned Builtin.NativeObject, @owned Builtin.NativeObject, @owned Builtin.NativeObject) -> () {
// CHECK: bb0([[ARG0:%.*]] : @owned $Builtin.NativeObject, [[ARG1:%.*]] : @owned $Builtin.NativeObject, [[ARG2:%.*]] : @owned $Builtin.NativeObject):
// CHECK:   [[BOX:%.*]] = alloc_box $<τ_0_0> { var τ_0_0 } <(Builtin.NativeObject, (Builtin.NativeObject, Builtin.NativeObject))>
// CHECK:   [[PROJ_BOX:%.*]] = project_box [[BOX]] : $<τ_0_0> { var τ_0_0 } <(Builtin.NativeObject, (Builtin.NativeObject, Builtin.NativeObject))>, 0
// CHECK:   [[PROJ_BOX_0:%.*]] = tuple_element_addr [[PROJ_BOX]] : $*(Builtin.NativeObject, (Builtin.NativeObject, Builtin.NativeObject)), 0
// CHECK:   [[PROJ_BOX_1:%.*]] = tuple_element_addr [[PROJ_BOX]] : $*(Builtin.NativeObject, (Builtin.NativeObject, Builtin.NativeObject)), 1
// CHECK:   [[PROJ_BOX_10:%.*]] = tuple_element_addr [[PROJ_BOX_1]] : $*(Builtin.NativeObject, Builtin.NativeObject), 0
// CHECK:   [[PROJ_BOX_11:%.*]] = tuple_element_addr [[PROJ_BOX_1]] : $*(Builtin.NativeObject, Builtin.NativeObject), 1
// CHECK:   [[TUP_1:%.*]] = tuple ([[ARG0]] : $Builtin.NativeObject, [[ARG1]] : $Builtin.NativeObject)
// CHECK:   [[TUP:%.*]] = tuple ([[ARG2]] : $Builtin.NativeObject, [[TUP_1]] : $(Builtin.NativeObject, Builtin.NativeObject))
// CHECK:   [[TUP_COPY:%.*]] = copy_value [[TUP]]
// CHECK:   ([[TUP_D_0:%.*]], [[TUP_D_1:%.*]]) = destructure_tuple [[TUP]] : $(Builtin.NativeObject, (Builtin.NativeObject, Builtin.NativeObject))
// CHECK:   store [[TUP_D_0]] to [init] [[PROJ_BOX_0]] : $*Builtin.NativeObject
// CHECK:   ([[TUP_D_10:%.*]], [[TUP_D_11:%.*]]) = destructure_tuple [[TUP_D_1]] : $(Builtin.NativeObject, Builtin.NativeObject)
// CHECK:   store [[TUP_D_10]] to [init] [[PROJ_BOX_10]] : $*Builtin.NativeObject
// CHECK:   store [[TUP_D_11]] to [init] [[PROJ_BOX_11]] : $*Builtin.NativeObject

// CHECK:   ([[TUP_D_0:%.*]], [[TUP_D_1:%.*]]) = destructure_tuple [[TUP_COPY]] : $(Builtin.NativeObject, (Builtin.NativeObject, Builtin.NativeObject))
// CHECK:   store [[TUP_D_0]] to [assign] [[PROJ_BOX_0]] : $*Builtin.NativeObject
// CHECK:   ([[TUP_D_10:%.*]], [[TUP_D_11:%.*]]) = destructure_tuple [[TUP_D_1]] : $(Builtin.NativeObject, Builtin.NativeObject)
// CHECK:   store [[TUP_D_10]] to [assign] [[PROJ_BOX_10]] : $*Builtin.NativeObject
// CHECK:   store [[TUP_D_11]] to [assign] [[PROJ_BOX_11]] : $*Builtin.NativeObject

// CHECK:   destroy_value [[BOX]] : $<τ_0_0> { var τ_0_0 } <(Builtin.NativeObject, (Builtin.NativeObject, Builtin.NativeObject))>
// CHECK: } // end sil function 'test_assigned_owned_2'
sil [ossa] @test_assigned_owned_2 : $@convention(thin) (@owned Builtin.NativeObject, @owned Builtin.NativeObject, @owned Builtin.NativeObject) -> () {
bb0(%0 : @owned $Builtin.NativeObject, %1 : @owned $Builtin.NativeObject, %1a : @owned $Builtin.NativeObject):
  %2 = alloc_box $<τ_0_0> { var τ_0_0 } <(Builtin.NativeObject, (Builtin.NativeObject, Builtin.NativeObject))>
  %3 = project_box %2 : $<τ_0_0> { var τ_0_0 } <(Builtin.NativeObject, (Builtin.NativeObject, Builtin.NativeObject))>, 0
  %4 = mark_uninitialized [var] %3 : $*(Builtin.NativeObject, (Builtin.NativeObject, Builtin.NativeObject))
  %5 = tuple(%0 : $Builtin.NativeObject, %1 : $Builtin.NativeObject)
  %6 = tuple(%1a : $Builtin.NativeObject, %5 : $(Builtin.NativeObject, Builtin.NativeObject))
  %7 = copy_value %6 : $(Builtin.NativeObject, (Builtin.NativeObject, Builtin.NativeObject))
  assign %6 to %4 : $*(Builtin.NativeObject, (Builtin.NativeObject, Builtin.NativeObject))
  assign %7 to %4 : $*(Builtin.NativeObject, (Builtin.NativeObject, Builtin.NativeObject))
  destroy_value %2 : $<τ_0_0> { var τ_0_0 } <(Builtin.NativeObject, (Builtin.NativeObject, Builtin.NativeObject))>
  %9999 = tuple()
  return %9999 : $()
}