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|
// RUN: %target-sil-opt -enable-sil-verify-all %s -code-sinking | %FileCheck %s
sil_stage canonical
import Builtin
import Swift
import SwiftShims
class X
{
private func ping() -> Int
deinit
init()
}
class Y : X
{
deinit
override init()
}
sil @_TFC14devirt_access21X4pingfS0_FT_Si : $@convention(method) (@guaranteed X) -> Int
sil @_TFC14devirt_access21XcfMS0_FT_S0_ : $@convention(method) (@owned X) -> @owned X
sil @_TFC14devirt_access21XCfMS0_FT_S0_ : $@convention(thin) (@thick X.Type) -> @owned X
sil @_TFC14devirt_access21YcfMS0_FT_S0_ : $@convention(method) (@owned Y) -> @owned Y
sil @_TFC14devirt_access21YCfMS0_FT_S0_ : $@convention(thin) (@thick Y.Type) -> @owned Y
//CHECK-LABEL: sil @trivial_sink
//CHECK: bb1:
//CHECK-NEXT: upcast
//CHECK-NEXT: class_method
//CHECK-NEXT: apply
//CHECK: return
sil @trivial_sink : $@convention(thin) (@owned Y) -> Int {
bb0(%0 : $Y):
debug_value %0 : $Y
strong_retain %0 : $Y
%3 = upcast %0 : $Y to $X
%4 = class_method %3 : $X, #X.ping : (X) -> () -> Int, $@convention(method) (@guaranteed X) -> Int
br bb1
bb1:
%5 = apply %4(%3) : $@convention(method) (@guaranteed X) -> Int
strong_release %0 : $Y
return %5 : $Int
}
//CHECK-LABEL: sil @no_sink
//CHECK: upcast
//CHECK-NEXT: class_method
//CHECK-NEXT: cond_br
//CHECK: return
sil @no_sink : $@convention(thin) (@owned Y) -> Int {
bb0(%0 : $Y):
debug_value %0 : $Y
strong_retain %0 : $Y
%3 = upcast %0 : $Y to $X
%4 = class_method %3 : $X, #X.ping : (X) -> () -> Int, $@convention(method) (@guaranteed X) -> Int
cond_br undef, bb1, bb2
bb1:
%5 = apply %4(%3) : $@convention(method) (@guaranteed X) -> Int
strong_release %0 : $Y
br bb3
bb2:
%9 = apply %4(%3) : $@convention(method) (@guaranteed X) -> Int
strong_release %0 : $Y
br bb3
bb3:
return undef : $Int
}
//CHECK-LABEL: sil @cf_sink
//CHECK: bb1:
//CHECK-NEXT: upcast
//CHECK-NEXT: class_method
//CHECK-NEXT: apply
//CHECK-NOT: upcast
//CHECK: return
sil @cf_sink : $@convention(thin) (@owned Y) -> Int {
bb0(%0 : $Y):
debug_value %0 : $Y
strong_retain %0 : $Y
%3 = upcast %0 : $Y to $X
%4 = class_method %3 : $X, #X.ping : (X) -> () -> Int, $@convention(method) (@guaranteed X) -> Int
cond_br undef, bb1, bb2
bb1:
%5 = apply %4(%3) : $@convention(method) (@guaranteed X) -> Int
strong_release %0 : $Y
br bb3
bb2:
strong_release %0 : $Y
br bb3
bb3:
return undef : $Int
}
//CHECK-LABEL: sil @sink_multi_blocks
//CHECK: bb4:
//CHECK-NEXT: upcast
//CHECK-NEXT: class_method
//CHECK-NEXT: apply
//CHECK-NOT: upcast
//CHECK: return
sil @sink_multi_blocks : $@convention(thin) (@owned Y) -> Int {
bb0(%0 : $Y):
debug_value %0 : $Y
strong_retain %0 : $Y
%3 = upcast %0 : $Y to $X
%4 = class_method %3 : $X, #X.ping : (X) -> () -> Int, $@convention(method) (@guaranteed X) -> Int
br bb1
bb1:
br bb2
bb2:
br bb3
bb3:
br bb4
bb4:
%5 = apply %4(%3) : $@convention(method) (@guaranteed X) -> Int
strong_release %0 : $Y
return %5 : $Int
}
//CHECK-LABEL: sil @sink_loop
//CHECK: bb1:
//CHECK-NEXT: apply
//CHECK-NEXT: br bb1
//CHECK: return
sil @sink_loop : $@convention(thin) (@owned Y) -> Int {
bb0(%0 : $Y):
debug_value %0 : $Y
strong_retain %0 : $Y
%3 = upcast %0 : $Y to $X
%4 = class_method %3 : $X, #X.ping : (X) -> () -> Int, $@convention(method) (@guaranteed X) -> Int
br bb1
// This is a loop!
bb1:
%5 = apply %4(%3) : $@convention(method) (@guaranteed X) -> Int
br bb1
bb2:
strong_release %0 : $Y
return undef : $Int
}
//CHECK-LABEL: sil @sink_nested_loop
//CHECK: bb0
//CHECK-NEXT: upcast
//CHECK-NEXT: class_method
//CHECK-NEXT: br bb1
//CHECK: return
sil @sink_nested_loop : $@convention(thin) (@owned Y) -> Int {
bb0(%0 : $Y):
%3 = upcast %0 : $Y to $X
%4 = class_method %3 : $X, #X.ping : (X) -> () -> Int, $@convention(method) (@guaranteed X) -> Int
br bb1
bb1:
br bb2
// This is a loop!
bb2:
%5 = apply %4(%3) : $@convention(method) (@guaranteed X) -> Int
cond_br undef, bb2, bb3
bb3:
cond_br undef, bb3, bb1
bb4:
strong_release %0 : $Y
return undef : $Int
}
sil @takeY : $@convention(thin) (@guaranteed Y) -> ()
//CHECK-LABEL: sil @dont_sink_stack_allocs
//CHECK: alloc_ref [stack] $X
//CHECK: alloc_ref [stack] $Y
//CHECK: dealloc_stack_ref %{{[0-9]+}} : $Y
//CHECK: dealloc_stack_ref %{{[0-9]+}} : $X
//CHECK: return
sil @dont_sink_stack_allocs : $@convention(thin) () -> () {
bb0:
%0 = alloc_ref [stack] $X
%1 = alloc_ref [stack] $Y
%f = function_ref @takeY : $@convention(thin) (@guaranteed Y) -> ()
%a = apply %f(%1) : $@convention(thin) (@guaranteed Y) -> ()
br bb1
bb1:
strong_release %1 : $Y
dealloc_stack_ref %1 : $Y
strong_release %0 : $X
dealloc_stack_ref %0 : $X
%4 = tuple ()
return %4 : $()
}
public protocol P : class {
func foo() -> Int32
func boo() -> Int32
}
// Check that open_existential is not moved after its uses and still
// dominates them after a run of a code sinking pass.
// CHECK-LABEL: sil @dont_sink_open_existential
// CHECK-NOT: metatype
// CHECK-NOT: witness_method
// CHECK: open_existential_ref
// CHECK: metatype
sil @dont_sink_open_existential : $@convention(thin) (@owned P) -> () {
bb0(%0 : $P):
%1 = open_existential_ref %0 : $P to $@opened("C4960DBA-02C5-11E6-BE1B-B8E856428C60", P) Self
%2 = metatype $@thick (@opened("C4960DBA-02C5-11E6-BE1B-B8E856428C60", P) Self).Type
%3 = witness_method $@opened("C4960DBA-02C5-11E6-BE1B-B8E856428C60", P) Self, #P.foo, %1 : $@opened("C4960DBA-02C5-11E6-BE1B-B8E856428C60", P) Self : $@convention(witness_method: P) <τ_0_0 where τ_0_0 : P> (@guaranteed τ_0_0) -> Int32
br bb1
bb1:
%4 = apply %3<@opened("C4960DBA-02C5-11E6-BE1B-B8E856428C60", P) Self>(%1) : $@convention(witness_method: P) <τ_0_0 where τ_0_0 : P> (@guaranteed τ_0_0) -> Int32
strong_release %0 : $P
%5 = tuple ()
return %5 : $()
}
sil_vtable X {
#X.ping: @_TFC14devirt_access21X4pingfS0_FT_Si // devirt_access2.X.ping (devirt_access2.X)() -> Swift.Int
#X.init!initializer: @_TFC14devirt_access21XcfMS0_FT_S0_ // devirt_access2.X.init (devirt_access2.X.Type)() -> devirt_access2.X
}
sil_vtable Y {
#X.ping: @_TFC14devirt_access21X4pingfS0_FT_Si [inherited]
#X.init!initializer: @_TFC14devirt_access21YcfMS0_FT_S0_ [override]
}
|
