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d4db9b8099
With the option -sil-print-debuginfo the printing of debug locations and scopes can be enabled. I made the default for the option “false”, because in 99% of the time I don’t need the debug info in the printed SIL and I prefer better readability.
253 lines
11 KiB
Plaintext
253 lines
11 KiB
Plaintext
// RUN: %target-sil-opt -assume-parsing-unqualified-ownership-sil -sil-print-debuginfo -enable-sil-verify-all -deadobject-elim %s | %FileCheck %s
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// Linux doesn't have the same symbol name for _ArrayBuffer.
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// XFAIL: linux
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import Swift
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import Builtin
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//////////
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// Data //
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//////////
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class TrivialDestructor {
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var int : Builtin.Int32
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var ptr : Builtin.NativeObject
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init()
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deinit { }
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}
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// Remove a dead array.
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// rdar://20980377 Add dead array elimination to DeadObjectElimination
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// Swift._allocateUninitializedArray <A> (Builtin.Word) -> (Swift.Array<A>, Builtin.RawPointer)
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sil [_semantics "array.uninitialized"] @allocArray : $@convention(thin) <τ_0_0> (Builtin.Word) -> @owned (Array<τ_0_0>, Builtin.RawPointer)
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// CHECK-LABEL: sil @deadarray
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// CHECK-NOT: apply
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// CHECK-NOT: store
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sil @deadarray : $@convention(thin) (@owned TrivialDestructor) -> () {
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bb0(%0 : $TrivialDestructor):
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// CHECK: strong_retain %0 : $TrivialDestructor
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%2 = integer_literal $Builtin.Word, 2
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// function_ref Swift._allocateUninitializedArray <A> (Builtin.Word) -> (Swift.Array<A>, Builtin.RawPointer)
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%3 = function_ref @allocArray : $@convention(thin) <τ_0_0> (Builtin.Word) -> @owned (Array<τ_0_0>, Builtin.RawPointer)
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%4 = apply %3<TrivialDestructor>(%2) : $@convention(thin) <τ_0_0> (Builtin.Word) -> @owned (Array<τ_0_0>, Builtin.RawPointer)
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%5 = tuple_extract %4 : $(Array<TrivialDestructor>, Builtin.RawPointer), 0
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%6 = tuple_extract %4 : $(Array<TrivialDestructor>, Builtin.RawPointer), 1
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%7 = pointer_to_address %6 : $Builtin.RawPointer to [strict] $*TrivialDestructor
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// CHECK-NEXT: strong_release %0 : $TrivialDestructor, loc "{{.*}}":[[@LINE+1]]:3
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store %0 to %7 : $*TrivialDestructor
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%9 = integer_literal $Builtin.Word, 1
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%10 = index_addr %7 : $*TrivialDestructor, %9 : $Builtin.Word
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// CHECK-NEXT: strong_release %0 : $TrivialDestructor, loc "{{.*}}":[[@LINE+1]]:3
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store %0 to %10 : $*TrivialDestructor
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%13 = struct_extract %5 : $Array<TrivialDestructor>, #Array._buffer
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%14 = struct_extract %13 : $_ArrayBuffer<TrivialDestructor>, #_ArrayBuffer._storage
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%15 = struct_extract %14 : $_BridgeStorage<_ContiguousArrayStorageBase, _NSArrayCore>, #_BridgeStorage.rawValue
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strong_retain %0 : $TrivialDestructor
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strong_release %15 : $Builtin.BridgeObject
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// CHECK-NEXT: tuple ()
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%18 = tuple ()
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// CHECK-NEXT: return
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return %18 : $()
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}
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// Test the sanity check in dead object elimination which checks that all stores
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// to the array are within the array's liferange.
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// CHECK-LABEL: sil @malformed_deadarray
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// CHECK: apply
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// CHECK: store
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// CHECK: return
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sil @malformed_deadarray : $@convention(thin) (@owned TrivialDestructor) -> () {
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bb0(%0 : $TrivialDestructor):
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%2 = integer_literal $Builtin.Word, 2
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// function_ref Swift._allocateUninitializedArray <A> (Builtin.Word) -> (Swift.Array<A>, Builtin.RawPointer)
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%3 = function_ref @allocArray : $@convention(thin) <τ_0_0> (Builtin.Word) -> @owned (Array<τ_0_0>, Builtin.RawPointer)
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%4 = apply %3<TrivialDestructor>(%2) : $@convention(thin) <τ_0_0> (Builtin.Word) -> @owned (Array<τ_0_0>, Builtin.RawPointer)
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%5 = tuple_extract %4 : $(Array<TrivialDestructor>, Builtin.RawPointer), 0
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%6 = tuple_extract %4 : $(Array<TrivialDestructor>, Builtin.RawPointer), 1
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%7 = pointer_to_address %6 : $Builtin.RawPointer to [strict] $*TrivialDestructor
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%13 = struct_extract %5 : $Array<TrivialDestructor>, #Array._buffer
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%14 = struct_extract %13 : $_ArrayBuffer<TrivialDestructor>, #_ArrayBuffer._storage
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%15 = struct_extract %14 : $_BridgeStorage<_ContiguousArrayStorageBase, _NSArrayCore>, #_BridgeStorage.rawValue
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strong_retain %0 : $TrivialDestructor
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strong_release %15 : $Builtin.BridgeObject
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// This store is after the last release of the dead array. This should actually
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// never happen.
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store %0 to %7 : $*TrivialDestructor
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%18 = tuple ()
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return %18 : $()
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}
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// CHECK-LABEL: sil @not_all_paths_release_the_dead_array
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// CHECK: bb0(%0 : $TrivialDestructor):
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// CHECK-NEXT: cond_br
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// CHECK: bb1:
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// CHECK-NEXT: unreachable
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// CHECK: bb2:
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// CHECK-NEXT: strong_retain %0
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// CHECK-NEXT: strong_release %0
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// CHECK: return
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sil @not_all_paths_release_the_dead_array : $@convention(thin) (@owned TrivialDestructor) -> () {
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bb0(%0 : $TrivialDestructor):
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%2 = integer_literal $Builtin.Word, 2
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// function_ref Swift._allocateUninitializedArray <A> (Builtin.Word) -> (Swift.Array<A>, Builtin.RawPointer)
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%3 = function_ref @allocArray : $@convention(thin) <τ_0_0> (Builtin.Word) -> @owned (Array<τ_0_0>, Builtin.RawPointer)
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%4 = apply %3<TrivialDestructor>(%2) : $@convention(thin) <τ_0_0> (Builtin.Word) -> @owned (Array<τ_0_0>, Builtin.RawPointer)
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%5 = tuple_extract %4 : $(Array<TrivialDestructor>, Builtin.RawPointer), 0
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%6 = tuple_extract %4 : $(Array<TrivialDestructor>, Builtin.RawPointer), 1
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%13 = struct_extract %5 : $Array<TrivialDestructor>, #Array._buffer
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%14 = struct_extract %13 : $_ArrayBuffer<TrivialDestructor>, #_ArrayBuffer._storage
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%15 = struct_extract %14 : $_BridgeStorage<_ContiguousArrayStorageBase, _NSArrayCore>, #_BridgeStorage.rawValue
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cond_br undef, bb1, bb2
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bb1:
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unreachable
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bb2:
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%7 = pointer_to_address %6 : $Builtin.RawPointer to [strict] $*TrivialDestructor
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strong_retain %0 : $TrivialDestructor
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store %0 to %7 : $*TrivialDestructor
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strong_release %15 : $Builtin.BridgeObject
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%18 = tuple ()
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return %18 : $()
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}
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// CHECK-LABEL: sil @tuple_extract_in_different_block
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// CHECK: bb0(%0 : $TrivialDestructor):
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// CHECK-NEXT: strong_retain %0
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// CHECK-NEXT: br bb1
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// CHECK: bb1:
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// CHECK-NEXT: strong_release %0
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// CHECK: return
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sil @tuple_extract_in_different_block : $@convention(thin) (@owned TrivialDestructor) -> () {
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bb0(%0 : $TrivialDestructor):
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%2 = integer_literal $Builtin.Word, 2
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// function_ref Swift._allocateUninitializedArray <A> (Builtin.Word) -> (Swift.Array<A>, Builtin.RawPointer)
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%3 = function_ref @allocArray : $@convention(thin) <τ_0_0> (Builtin.Word) -> @owned (Array<τ_0_0>, Builtin.RawPointer)
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%4 = apply %3<TrivialDestructor>(%2) : $@convention(thin) <τ_0_0> (Builtin.Word) -> @owned (Array<τ_0_0>, Builtin.RawPointer)
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%6 = tuple_extract %4 : $(Array<TrivialDestructor>, Builtin.RawPointer), 1
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%7 = pointer_to_address %6 : $Builtin.RawPointer to [strict] $*TrivialDestructor
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strong_retain %0 : $TrivialDestructor
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store %0 to %7 : $*TrivialDestructor
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br bb1
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bb1:
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%5 = tuple_extract %4 : $(Array<TrivialDestructor>, Builtin.RawPointer), 0
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%13 = struct_extract %5 : $Array<TrivialDestructor>, #Array._buffer
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%14 = struct_extract %13 : $_ArrayBuffer<TrivialDestructor>, #_ArrayBuffer._storage
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%15 = struct_extract %14 : $_BridgeStorage<_ContiguousArrayStorageBase, _NSArrayCore>, #_BridgeStorage.rawValue
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strong_release %15 : $Builtin.BridgeObject
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%18 = tuple ()
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return %18 : $()
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}
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// CHECK-LABEL: sil @multiple_tuple_extracts
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// CHECK: apply
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// CHECK: store
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// CHECK: load
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// CHECK: strong_release
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// CHECK: return
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sil @multiple_tuple_extracts : $@convention(thin) (@owned TrivialDestructor) -> @owned TrivialDestructor {
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bb0(%0 : $TrivialDestructor):
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%2 = integer_literal $Builtin.Word, 2
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// function_ref Swift._allocateUninitializedArray <A> (Builtin.Word) -> (Swift.Array<A>, Builtin.RawPointer)
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%3 = function_ref @allocArray : $@convention(thin) <τ_0_0> (Builtin.Word) -> @owned (Array<τ_0_0>, Builtin.RawPointer)
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%4 = apply %3<TrivialDestructor>(%2) : $@convention(thin) <τ_0_0> (Builtin.Word) -> @owned (Array<τ_0_0>, Builtin.RawPointer)
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%10 = tuple_extract %4 : $(Array<TrivialDestructor>, Builtin.RawPointer), 1
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%11 = pointer_to_address %10 : $Builtin.RawPointer to [strict] $*TrivialDestructor
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strong_retain %0 : $TrivialDestructor
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store %0 to %11 : $*TrivialDestructor
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%20 = tuple_extract %4 : $(Array<TrivialDestructor>, Builtin.RawPointer), 1
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%21 = pointer_to_address %20 : $Builtin.RawPointer to [strict] $*TrivialDestructor
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%22 = load %21 : $*TrivialDestructor
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%12 = tuple_extract %4 : $(Array<TrivialDestructor>, Builtin.RawPointer), 0
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%13 = struct_extract %12 : $Array<TrivialDestructor>, #Array._buffer
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%14 = struct_extract %13 : $_ArrayBuffer<TrivialDestructor>, #_ArrayBuffer._storage
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%15 = struct_extract %14 : $_BridgeStorage<_ContiguousArrayStorageBase, _NSArrayCore>, #_BridgeStorage.rawValue
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strong_release %15 : $Builtin.BridgeObject
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return %22 : $TrivialDestructor
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}
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// CHECK-LABEL: sil @release_dead_array_on_two_branches
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// CHECK: bb0(%0 : $TrivialDestructor, %1 : $TrivialDestructor):
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// CHECK-NEXT: cond_br
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// CHECK: bb1:
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// CHECK-NEXT: strong_retain %0
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// CHECK-NEXT: strong_release %0
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// CHECK: bb2:
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// CHECK-NEXT: strong_retain %1
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// CHECK-NEXT: strong_release %1
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// CHECK: return
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sil @release_dead_array_on_two_branches : $@convention(thin) (@owned TrivialDestructor, @owned TrivialDestructor) -> () {
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bb0(%0 : $TrivialDestructor, %1 : $TrivialDestructor):
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%2 = integer_literal $Builtin.Word, 2
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// function_ref Swift._allocateUninitializedArray <A> (Builtin.Word) -> (Swift.Array<A>, Builtin.RawPointer)
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%3 = function_ref @allocArray : $@convention(thin) <τ_0_0> (Builtin.Word) -> @owned (Array<τ_0_0>, Builtin.RawPointer)
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%4 = apply %3<TrivialDestructor>(%2) : $@convention(thin) <τ_0_0> (Builtin.Word) -> @owned (Array<τ_0_0>, Builtin.RawPointer)
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%5 = tuple_extract %4 : $(Array<TrivialDestructor>, Builtin.RawPointer), 0
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%6 = tuple_extract %4 : $(Array<TrivialDestructor>, Builtin.RawPointer), 1
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%7 = pointer_to_address %6 : $Builtin.RawPointer to [strict] $*TrivialDestructor
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%13 = struct_extract %5 : $Array<TrivialDestructor>, #Array._buffer
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%14 = struct_extract %13 : $_ArrayBuffer<TrivialDestructor>, #_ArrayBuffer._storage
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%15 = struct_extract %14 : $_BridgeStorage<_ContiguousArrayStorageBase, _NSArrayCore>, #_BridgeStorage.rawValue
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cond_br undef, bb1, bb2
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bb1:
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strong_retain %0 : $TrivialDestructor
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store %0 to %7 : $*TrivialDestructor
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strong_release %15 : $Builtin.BridgeObject
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br bb3
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bb2:
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strong_retain %1 : $TrivialDestructor
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store %1 to %7 : $*TrivialDestructor
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strong_release %15 : $Builtin.BridgeObject
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br bb3
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bb3:
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%18 = tuple ()
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return %18 : $()
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}
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// CHECK-LABEL: sil @dead_array_in_single_cycle_loop
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// CHECK: bb0(%0 : $TrivialDestructor):
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// CHECK-NEXT: br bb1
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// CHECK: bb1:
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// CHECK-NEXT: strong_retain %0
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// CHECK-NEXT: strong_release %0
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// CHECK-NEXT: cond_br
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// CHECK: bb2:
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// CHECK-NEXT: tuple
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// CHECK-NEXT: return
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sil @dead_array_in_single_cycle_loop : $@convention(thin) (@guaranteed TrivialDestructor) -> () {
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bb0(%0 : $TrivialDestructor):
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br bb1
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bb1:
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%2 = integer_literal $Builtin.Word, 2
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%3 = function_ref @allocArray : $@convention(thin) <τ_0_0> (Builtin.Word) -> @owned (Array<τ_0_0>, Builtin.RawPointer)
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%4 = apply %3<TrivialDestructor>(%2) : $@convention(thin) <τ_0_0> (Builtin.Word) -> @owned (Array<τ_0_0>, Builtin.RawPointer)
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%5 = tuple_extract %4 : $(Array<TrivialDestructor>, Builtin.RawPointer), 0
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%6 = tuple_extract %4 : $(Array<TrivialDestructor>, Builtin.RawPointer), 1
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%7 = pointer_to_address %6 : $Builtin.RawPointer to [strict] $*TrivialDestructor
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%13 = struct_extract %5 : $Array<TrivialDestructor>, #Array._buffer
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%14 = struct_extract %13 : $_ArrayBuffer<TrivialDestructor>, #_ArrayBuffer._storage
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%15 = struct_extract %14 : $_BridgeStorage<_ContiguousArrayStorageBase, _NSArrayCore>, #_BridgeStorage.rawValue
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strong_retain %0 : $TrivialDestructor
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store %0 to %7 : $*TrivialDestructor
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strong_release %15 : $Builtin.BridgeObject
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cond_br undef, bb1, bb2
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bb2:
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%18 = tuple ()
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return %18 : $()
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}
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