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// RUN: %target-sil-opt -enable-sil-verify-all %s -onone-simplification -simplify-instruction=switch_enum | %FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-ONONE
// RUN: %target-sil-opt -enable-sil-verify-all %s -simplification -simplify-instruction=switch_enum | %FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-O
// REQUIRES: swift_in_compiler
import Swift
import Builtin
enum E {
case A
case B(String)
case C(Int)
}
// CHECK-LABEL: sil @test_simple :
// CHECK: bb0(%0 : $String):
// CHECK-NEXT: br bb1(%0 : $String)
// CHECK: bb1(%2 : $String):
// CHECK-NEXT: return %2 : $String
// CHECK-NOT: bb2
// CHECK: } // end sil function 'test_simple'
sil @test_simple : $@convention(thin) (@owned String) -> @owned String {
bb0(%0 : $String):
%1 = enum $E, #E.B!enumelt, %0 : $String
switch_enum %1 : $E, case #E.B!enumelt: bb1, default bb2
bb1(%2 : $String):
return %2 : $String
bb2:
unreachable
}
// CHECK-LABEL: sil @no_payload_argument :
// CHECK: bb0(%0 : $String):
// CHECK-NEXT: br bb1
// CHECK: bb1:
// CHECK-NEXT: tuple
// CHECK-NEXT: return
// CHECK-NOT: bb2
// CHECK: } // end sil function 'no_payload_argument'
sil @no_payload_argument : $@convention(thin) (@guaranteed String) -> () {
bb0(%0 : $String):
%1 = enum $E, #E.B!enumelt, %0 : $String
switch_enum %1 : $E, case #E.B!enumelt: bb1, default bb2
bb1:
%2 = tuple ()
return %2 : $()
bb2:
unreachable
}
// CHECK-LABEL: sil [ossa] @owned_ossa :
// CHECK: bb0(%0 : @owned $String):
// CHECK-NEXT: br bb1(%0 : $String)
// CHECK: bb1(%2 : @owned $String):
// CHECK-NEXT: return %2 : $String
// CHECK-NOT: bb2
// CHECK: } // end sil function 'owned_ossa'
sil [ossa] @owned_ossa : $@convention(thin) (@owned String) -> @owned String {
bb0(%0 : @owned $String):
%1 = enum $E, #E.B!enumelt, %0 : $String
switch_enum %1 : $E, case #E.B!enumelt: bb1, default bb2
bb1(%2 : @owned $String):
return %2 : $String
bb2(%4 : @owned $E):
unreachable
}
// CHECK-LABEL: sil [ossa] @guaranteed_ossa :
// CHECK: bb0(%0 : @guaranteed $String):
// CHECK-NEXT: br bb1(%0 : $String)
// CHECK: bb1(%2 : @guaranteed $String):
// CHECK-NEXT: %3 = borrowed %2 : $String from ()
// CHECK-NEXT: %4 = copy_value %3
// CHECK-NEXT: return %4 : $String
// CHECK-NOT: bb2
// CHECK: } // end sil function 'guaranteed_ossa'
sil [ossa] @guaranteed_ossa : $@convention(thin) (@guaranteed String) -> @owned String {
bb0(%0 : @guaranteed $String):
%1 = enum $E, #E.B!enumelt, %0 : $String
switch_enum %1 : $E, case #E.B!enumelt: bb1, default bb2
bb1(%2 : @guaranteed $String):
%3 = copy_value %2 : $String
return %3 : $String
bb2(%4 : @guaranteed $E):
unreachable
}
// CHECK-LABEL: sil [ossa] @owned_with_additional_uses :
// CHECK: switch_enum
// CHECK: } // end sil function 'owned_with_additional_uses'
sil [ossa] @owned_with_additional_uses : $@convention(thin) (@owned String) -> @owned String {
bb0(%0 : @owned $String):
%1 = enum $E, #E.B!enumelt, %0 : $String
%2 = begin_borrow %1 : $E
end_borrow %2 : $E
switch_enum %1 : $E, case #E.B!enumelt: bb1, default bb2
bb1(%5 : @owned $String):
return %5 : $String
bb2(%7 : @owned $E):
unreachable
}
// CHECK-LABEL: sil [ossa] @guaranteed_with_additional_uses :
// CHECK: enum
// CHECK-NEXT: begin_borrow
// CHECK-NEXT: end_borrow
// CHECK-NEXT: br bb1(%0 : $String)
// CHECK: bb1([[A:%.*]] : @guaranteed $String):
// CHECK-NEXT: [[B:%.*]] = borrowed [[A]] : $String from ()
// CHECK-NEXT: [[C:%.*]] = copy_value [[B]]
// CHECK-NEXT: return [[C]] : $String
// CHECK-NOT: bb2
// CHECK: } // end sil function 'guaranteed_with_additional_uses'
sil [ossa] @guaranteed_with_additional_uses : $@convention(thin) (@guaranteed String) -> @owned String {
bb0(%0 : @guaranteed $String):
%1 = enum $E, #E.B!enumelt, %0 : $String
%2 = begin_borrow %1 : $E
end_borrow %2 : $E
switch_enum %1 : $E, case #E.B!enumelt: bb1, default bb2
bb1(%5 : @guaranteed $String):
%6 = copy_value %5 : $String
return %6 : $String
bb2(%7 : @guaranteed $E):
unreachable
}
// CHECK-LABEL: sil [ossa] @owned_with_debug_uses :
// CHECK: bb0(%0 : @owned $String):
// CHECK-O: br bb1(%0 : $String)
// CHECK-ONONE: switch_enum
// CHECK: } // end sil function 'owned_with_debug_uses'
sil [ossa] @owned_with_debug_uses : $@convention(thin) (@owned String) -> @owned String {
bb0(%0 : @owned $String):
%1 = enum $E, #E.B!enumelt, %0 : $String
debug_value %1 : $E, let, name "e"
switch_enum %1 : $E, case #E.B!enumelt: bb1, default bb2
bb1(%2 : @owned $String):
return %2 : $String
bb2(%4 : @owned $E):
unreachable
}
|
