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|
// RUN: %target-swift-emit-silgen -module-name switch_multiple_entry_address_only %s | %FileCheck %s
enum E {
case a(Any)
case b(Any)
case c(Any)
}
// CHECK-LABEL: sil hidden [ossa] @$s34switch_multiple_entry_address_only8takesAnyyyypF : $@convention(thin) (@in_guaranteed Any) -> ()
func takesAny(_ x: Any) {}
// CHECK-LABEL: sil hidden [ossa] @$s34switch_multiple_entry_address_only0B9LabelsLet1eyAA1EO_tF : $@convention(thin) (@in_guaranteed E) -> ()
func multipleLabelsLet(e: E) {
// CHECK: bb0
// CHECK: [[X_PHI:%.*]] = alloc_stack $Any
// CHECK-NEXT: [[E_COPY:%.*]] = alloc_stack $E
// CHECK-NEXT: copy_addr %0 to [init] [[E_COPY]]
// CHECK-NEXT: switch_enum_addr [[E_COPY]] : $*E, case #E.a!enumelt: bb1, case #E.b!enumelt: bb2, default bb4
// CHECK: bb1:
// CHECK-NEXT: [[E_PAYLOAD:%.*]] = unchecked_take_enum_data_addr [[E_COPY]] : $*E, #E.a!enumelt
// CHECK-NEXT: [[ANY_BOX:%.*]] = alloc_stack [lexical] [var_decl] $Any
// CHECK-NEXT: copy_addr [take] [[E_PAYLOAD]] to [init] [[ANY_BOX]]
// CHECK-NEXT: copy_addr [[ANY_BOX]] to [init] [[X_PHI]]
// CHECK-NEXT: destroy_addr [[ANY_BOX]]
// CHECK-NEXT: dealloc_stack [[ANY_BOX]]
// CHECK-NEXT: dealloc_stack [[E_COPY]]
// CHECK-NEXT: br bb3
// CHECK: bb2:
// CHECK-NEXT: [[E_PAYLOAD:%.*]] = unchecked_take_enum_data_addr [[E_COPY]] : $*E, #E.b!enumelt
// CHECK-NEXT: [[ANY_BOX:%.*]] = alloc_stack [lexical] [var_decl] $Any
// CHECK-NEXT: copy_addr [take] [[E_PAYLOAD]] to [init] [[ANY_BOX]]
// CHECK-NEXT: copy_addr [[ANY_BOX]] to [init] [[X_PHI]]
// CHECK-NEXT: destroy_addr [[ANY_BOX]]
// CHECK-NEXT: dealloc_stack [[ANY_BOX]]
// CHECK-NEXT: dealloc_stack [[E_COPY]]
// CHECK-NEXT: br bb3
// CHECK: bb3:
// CHECK: [[FN:%.*]] = function_ref @$s34switch_multiple_entry_address_only8takesAnyyyypF
// CHECK-NEXT: apply [[FN]]([[X_PHI]]
// CHECK-NEXT: destroy_addr [[X_PHI]]
// CHECK-NEXT: br bb5
// CHECK: bb4:
// CHECK-NEXT: destroy_addr [[E_COPY]]
// CHECK-NEXT: dealloc_stack [[E_COPY]]
// CHECK-NEXT: br bb5
// CHECK: bb5:
// CHECK-NEXT: dealloc_stack [[X_PHI]]
// CHECK-NEXT: tuple ()
// CHECK-NEXT: return
switch e {
case .a(let x), .b(let x):
takesAny(x)
default:
break
}
}
// CHECK-LABEL: sil hidden [ossa] @$s34switch_multiple_entry_address_only0B9LabelsVar1eyAA1EO_tF : $@convention(thin) (@in_guaranteed E) -> ()
func multipleLabelsVar(e: E) {
// CHECK: bb0
// CHECK: [[X_PHI:%.*]] = alloc_stack $Any
// CHECK-NEXT: [[E_COPY:%.*]] = alloc_stack $E
// CHECK-NEXT: copy_addr %0 to [init] [[E_COPY]]
// CHECK-NEXT: switch_enum_addr [[E_COPY]] : $*E, case #E.a!enumelt: bb1, case #E.b!enumelt: bb2, default bb4
// CHECK: bb1:
// CHECK-NEXT: [[E_PAYLOAD:%.*]] = unchecked_take_enum_data_addr [[E_COPY]] : $*E, #E.a!enumelt
// CHECK-NEXT: [[ANY_BOX:%.*]] = alloc_stack [lexical] [var_decl] $Any
// CHECK-NEXT: copy_addr [take] [[E_PAYLOAD]] to [init] [[ANY_BOX]]
// CHECK-NEXT: copy_addr [[ANY_BOX]] to [init] [[X_PHI]]
// CHECK-NEXT: destroy_addr [[ANY_BOX]]
// CHECK-NEXT: dealloc_stack [[ANY_BOX]]
// CHECK-NEXT: dealloc_stack [[E_COPY]]
// CHECK-NEXT: br bb3
// CHECK: bb2:
// CHECK-NEXT: [[E_PAYLOAD:%.*]] = unchecked_take_enum_data_addr [[E_COPY]] : $*E, #E.b!enumelt
// CHECK-NEXT: [[ANY_BOX:%.*]] = alloc_stack [lexical] [var_decl] $Any
// CHECK-NEXT: copy_addr [take] [[E_PAYLOAD]] to [init] [[ANY_BOX]]
// CHECK-NEXT: copy_addr [[ANY_BOX]] to [init] [[X_PHI]]
// CHECK-NEXT: destroy_addr [[ANY_BOX]]
// CHECK-NEXT: dealloc_stack [[ANY_BOX]]
// CHECK-NEXT: dealloc_stack [[E_COPY]]
// CHECK-NEXT: br bb3
// CHECK: bb3:
// CHECK-NEXT: debug_value [[X_PHI]] : $*Any, var, name "x"
// CHECK-NEXT: [[ANY_BOX:%.*]] = alloc_box ${ var Any }, var, name "x"
// CHECK-NEXT: [[ANY_BOX_LIFETIME:%[^,]+]] = begin_borrow [lexical] [var_decl] [[ANY_BOX]]
// CHECK-NEXT: [[BOX_PAYLOAD:%.*]] = project_box [[ANY_BOX_LIFETIME]] : ${ var Any }, 0
// CHECK-NEXT: copy_addr [take] [[X_PHI]] to [init] [[BOX_PAYLOAD]]
// CHECK-NEXT: [[ACCESS:%.*]] = begin_access [read] [unknown] [[BOX_PAYLOAD]]
// CHECK-NEXT: [[ANY_STACK:%.*]] = alloc_stack $Any
// CHECK-NEXT: copy_addr [[ACCESS]] to [init] [[ANY_STACK]]
// CHECK-NEXT: end_access [[ACCESS]]
// CHECK: [[FN:%.*]] = function_ref @$s34switch_multiple_entry_address_only8takesAnyyyypF
// CHECK-NEXT: apply [[FN]]([[ANY_STACK]]
// CHECK-NEXT: destroy_addr [[ANY_STACK]]
// CHECK-NEXT: dealloc_stack [[ANY_STACK]]
// CHECK-NEXT: end_borrow [[ANY_BOX_LIFETIME]]
// CHECK-NEXT: destroy_value [[ANY_BOX]]
// CHECK-NEXT: br bb5
// CHECK: bb4:
// CHECK-NEXT: destroy_addr [[E_COPY]]
// CHECK-NEXT: dealloc_stack [[E_COPY]]
// CHECK-NEXT: br bb5
// CHECK: bb5:
// CHECK-NEXT: dealloc_stack [[X_PHI]]
// CHECK-NEXT: tuple ()
// CHECK-NEXT: return
switch e {
case .a(var x), .b(var x):
takesAny(x)
default:
break
}
}
// CHECK-LABEL: sil hidden [ossa] @$s34switch_multiple_entry_address_only20fallthroughWithValue1eyAA1EO_tF : $@convention(thin) (@in_guaranteed E) -> ()
func fallthroughWithValue(e: E) {
// CHECK: bb0
// CHECK: [[X_PHI:%.*]] = alloc_stack $Any
// CHECK-NEXT: [[E_COPY:%.*]] = alloc_stack $E
// CHECK-NEXT: copy_addr %0 to [init] [[E_COPY]]
// CHECK-NEXT: switch_enum_addr [[E_COPY]] : $*E, case #E.a!enumelt: bb1, case #E.b!enumelt: bb2, default bb4
// CHECK: bb1:
// CHECK-NEXT: [[E_PAYLOAD:%.*]] = unchecked_take_enum_data_addr [[E_COPY]] : $*E, #E.a!enumelt
// CHECK-NEXT: [[ORIGINAL_ANY_BOX:%.*]] = alloc_stack [lexical] [var_decl] $Any
// CHECK-NEXT: copy_addr [take] [[E_PAYLOAD]] to [init] [[ORIGINAL_ANY_BOX]]
// CHECK: [[FN1:%.*]] = function_ref @$s34switch_multiple_entry_address_only8takesAnyyyypF
// CHECK-NEXT: apply [[FN1]]([[ORIGINAL_ANY_BOX]]
// CHECK-NEXT: copy_addr [[ORIGINAL_ANY_BOX]] to [init] [[X_PHI]]
// CHECK-NEXT: destroy_addr [[ORIGINAL_ANY_BOX]]
// CHECK-NEXT: dealloc_stack [[ORIGINAL_ANY_BOX]]
// CHECK-NEXT: dealloc_stack [[E_COPY]]
// CHECK-NEXT: br bb3
// CHECK: bb2:
// CHECK-NEXT: [[E_PAYLOAD:%.*]] = unchecked_take_enum_data_addr [[E_COPY]] : $*E, #E.b!enumelt
// CHECK-NEXT: [[ANY_BOX:%.*]] = alloc_stack [lexical] [var_decl] $Any
// CHECK-NEXT: copy_addr [take] [[E_PAYLOAD]] to [init] [[ANY_BOX]]
// CHECK-NEXT: copy_addr [[ANY_BOX]] to [init] [[X_PHI]]
// CHECK-NEXT: destroy_addr [[ANY_BOX]]
// CHECK-NEXT: dealloc_stack [[ANY_BOX]]
// CHECK-NEXT: dealloc_stack [[E_COPY]]
// CHECK-NEXT: br bb3
// CHECK: bb3:
// CHECK: [[FN2:%.*]] = function_ref @$s34switch_multiple_entry_address_only8takesAnyyyypF
// CHECK-NEXT: apply [[FN2]]([[X_PHI]]
// CHECK-NEXT: destroy_addr [[X_PHI]]
// CHECK-NEXT: br bb5
// CHECK: bb4:
// CHECK-NEXT: destroy_addr [[E_COPY]]
// CHECK-NEXT: dealloc_stack [[E_COPY]]
// CHECK-NEXT: br bb5
// CHECK: bb5:
// CHECK-NEXT: dealloc_stack [[X_PHI]]
// CHECK-NEXT: tuple ()
// CHECK-NEXT: return
switch e {
case .a(let x):
takesAny(x)
fallthrough
case .b(let x):
takesAny(x)
default:
break
}
}
|
