// RUN: %target-sil-opt %s -lslocation-dump -ml=only-reduction | FileCheck %s

sil_stage canonical

import Builtin

///////////////////////
// Type Declarations //
///////////////////////

struct Int {
  var value : Builtin.Int64
}

struct Int64 {
  var value : Builtin.Int64
}

struct Bool {
  var value : Builtin.Int1
}

class B {
  var i : Builtin.Int32
  init()
}

struct S1 {
  var a: Int
  init(a: Int, b: Int)
  init()
}

struct S2 {
  var a: Int
  var b: Int
  init(a: Int, b: Int)
  init()
}

struct S3 {
  var a: S2
  var b: Int
  var c: S2
  init(a: S2, b: Int, c: S2)
  init()
}

struct S4 {
  var x: S3
  var y: S3
  init(x: S3, y: S3)
  init()
}

class SelfLoop {
  var a: Int 
  var b: Int 
  var c: SelfLoop
   deinit 
  init()
}

struct S5 {
  var a: SelfLoop
  init(a: SelfLoop)
  init()
}

sil @S1_init : $@convention(thin) (@thin S1.Type) -> S1
sil @S2_init : $@convention(thin) (@thin S2.Type) -> S2
sil @S3_init : $@convention(thin) (@thin S3.Type) -> S3
sil @S4_init : $@convention(thin) (@thin S4.Type) -> S4
sil @S5_init : $@convention(thin) (@thin S5.Type) -> S5

// CHECK-LABEL: @stack_store
// CHECK: #0 store
// CHECK-NEXT: alloc_stack
sil @stack_store : $@convention(thin) () -> () {
  %1 = alloc_stack $Builtin.Int64
  %9 = integer_literal $Builtin.Int64, 0
  store %9 to %1 : $*Builtin.Int64
  %4 = tuple()
  dealloc_stack %1 : $*Builtin.Int64        // id: %13
  %5 = return %4 : $()
}

// CHECK-LABEL: @store_after_store
// CHECK: #0 store
// CHECK-NEXT: [[RET0:%.+]] = alloc_box
// CHECK: #1 store
// CHECK-NEXT: [[RET0:%.+]] = alloc_box
sil @store_after_store : $@convention(thin) (@owned B) -> () {
bb0(%0 : $B):
  %1 = alloc_box $B
  %1a = project_box %1 : $@box B
  %2 = store %0 to %1a : $*B
  %3 = store %0 to %1a : $*B
  %4 = tuple()
  %5 = return %4 : $()
}

// CHECK-LABEL: @store_after_store_struct
// CHECK: #0 store
// CHECK-NEXT: [[RET0:%.+]] = alloc_stack
// CHECK-NEXT: Address Projection Type: $*Int
// CHECK-NEXT: Field Type: var a: Int
// CHECK: #1 store
// CHECK-NEXT: [[RET0:%.+]] = alloc_stack
// CHECK-NEXT: Address Projection Type: $*Int
// CHECK-NEXT: Field Type: var a: Int  
sil @store_after_store_struct : $@convention(thin) () -> () {
  %1 = alloc_stack $S1
  %9 = integer_literal $Builtin.Int64, 0          // user: %10
  %10 = struct $Int (%9 : $Builtin.Int64)         // user: %12
  %11 = struct_element_addr %1 : $*S1, #S1.a    // user: %12
  store %10 to %11 : $*Int                        // id: %12
  store %10 to %11 : $*Int
  %4 = tuple()
  dealloc_stack %1 : $*S1        // id: %13
  %5 = return %4 : $()
}

// Make sure all the structs get expanded correctly.
//
// CHECK-LABEL: @many_struct_allocs
// CHECK: #0 store
// CHECK-NEXT: alloc_stack $S2
// CHECK: #1 store
// CHECK-NEXT: alloc_stack $S3
// CHECK: #2 store
// CHECK-NEXT: alloc_stack $S4
sil hidden @many_struct_allocs : $@convention(thin) () -> () {
bb0:
  %0 = alloc_stack $S2, var, name "a"                  // users: %6, %18
  %1 = alloc_stack $S3, var, name "b"                  // users: %10, %17
  %2 = alloc_stack $S4, var, name "c"                  // users: %14, %16
  %3 = function_ref @S2_init : $@convention(thin) (@thin S2.Type) -> S2 // user: %5
  %4 = metatype $@thin S2.Type                    // user: %5
  %5 = apply %3(%4) : $@convention(thin) (@thin S2.Type) -> S2 // user: %6
  store %5 to %0 : $*S2                         // id: %6
  // function_ref struct.S3.init (struct.S3.Type)() -> struct.S3
  %7 = function_ref @S3_init : $@convention(thin) (@thin S3.Type) -> S3 // user: %9
  %8 = metatype $@thin S3.Type                    // user: %9
  %9 = apply %7(%8) : $@convention(thin) (@thin S3.Type) -> S3 // user: %10
  store %9 to %1 : $*S3                         // id: %10
  %11 = function_ref @S4_init : $@convention(thin) (@thin S4.Type) -> S4 // user: %13
  %12 = metatype $@thin S4.Type                   // user: %13
  %13 = apply %11(%12) : $@convention(thin) (@thin S4.Type) -> S4 // user: %14
  store %13 to %2 : $*S4                        // id: %14
  %15 = tuple ()                                  // user: %19
  dealloc_stack %2 : $*S4        // id: %16
  dealloc_stack %1 : $*S3        // id: %17
  dealloc_stack %0 : $*S2        // id: %18
  return %15 : $()                                // id: %19
}

// CHECK-LABEL: self_loop 
// CHECK: #0 store
// CHECK-NEXT: alloc_stack $S5, var, name "b"{{.*}}   // users: %7, %4
sil hidden @self_loop : $@convention(thin) () -> () {
bb0:
  %0 = alloc_stack $S5, var, name "b"             // users: %4, %7
  %1 = function_ref @S5_init : $@convention(thin) (@thin S5.Type) -> S5 // user: %3
  %2 = metatype $@thin S5.Type                    // user: %3
  %3 = apply %1(%2) : $@convention(thin) (@thin S5.Type) -> S5 // users: %4, %5
  store %3 to %0 : $*S5                         // id: %4
  release_value %3 : $S5                          // id: %5
  %6 = tuple ()                                   // user: %8
  dealloc_stack %0 : $*S5        // id: %7
  return %6 : $()                                 // id: %8
}