mirror of
https://github.com/apple/swift.git
synced 2025-12-21 12:14:44 +01:00
04ede105d6
Remove casts between arrays of the same type.
```
%1 = function_ref @_arrayConditionalCast : (@guaranteed Array<Int>) -> @owned Optional<Array<Int>>
%2 = apply %1(%0) : (@guaranteed Array<Int>) -> @owned Optional<Array<Int>>
```
->
```
%1 = copy_value %0
%2 = enum $Optional<Array<Int>>, #Optional.some!enumelt, %1
```
This can be a result of specialization, e.g.
```
func foo<T>(from: [T]) -> [Int]? {
return from as? [Int]
}
func bar(a: [Int]) -> [Int]? {
return foo(from: a)
}
```
rdar://139632757
168 lines
8.0 KiB
Plaintext
168 lines
8.0 KiB
Plaintext
// RUN: %target-sil-opt -enable-sil-verify-all %s -onone-simplification -simplify-instruction=apply | %FileCheck %s -check-prefix=CHECK -check-prefix=CHECKONONE
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// RUN: %target-sil-opt -enable-sil-verify-all %s -simplification -simplify-instruction=apply | %FileCheck %s -check-prefix=CHECK -check-prefix=CHECKO
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// REQUIRES: swift_in_compiler
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sil_stage canonical
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import Builtin
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import Swift
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import SwiftShims
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protocol P {}
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class Bar: P {
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init()
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func foo() -> Int
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}
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class Derived: Bar {}
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struct S: P {
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var x: Int
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}
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struct GenS<T> {
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var x: Int
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}
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sil @cl : $@convention(thin) () -> Int
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// CHECK-LABEL: sil [ossa] @thick_to_thin :
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// CHECK: [[F:%.*]] = function_ref @cl
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// CHECK: apply [[F]]() : $@convention(thin
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// CHECK: } // end sil function 'thick_to_thin'
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sil [ossa] @thick_to_thin : $@convention(thin) () -> Int {
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bb0:
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%0 = function_ref @cl : $@convention(thin) () -> Int
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%1 = thin_to_thick_function %0 : $@convention(thin) () -> Int to $@callee_guaranteed () -> Int
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%2 = apply %1() : $@callee_guaranteed () -> Int
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return %2 : $Int
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}
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// CHECK-LABEL: sil @devirt_class_method :
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// CHECK: [[F:%.*]] = function_ref @bar_foo
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// CHECK: apply [[F]]
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// CHECK: } // end sil function 'devirt_class_method'
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sil @devirt_class_method : $@convention(thin) () -> Int {
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bb0:
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%0 = alloc_ref $Bar
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%1 = class_method %0 : $Bar, #Bar.foo : (Bar) -> () -> Int, $@convention(method) (@guaranteed Bar) -> Int
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%2 = apply %1(%0) : $@convention(method) (@guaranteed Bar) -> Int
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strong_release %0 : $Bar
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return %2 : $Int
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}
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sil @bar_foo : $@convention(method) (@guaranteed Bar) -> Int
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sil_vtable Bar {
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#Bar.foo: @bar_foo
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}
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sil @createit : $@convention(thin) <τ_0_0 where τ_0_0 : P> (@thick τ_0_0.Type, Int) -> @out τ_0_0
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sil @useGenS : $@convention(thin) <τ_0_0 where τ_0_0 : P> (GenS<τ_0_0>) -> ()
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sil @returnGenS : $@convention(thin) <τ_0_0 where τ_0_0 : P> (@thick τ_0_0.Type) -> GenS<τ_0_0>
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// CHECK-LABEL: sil [ossa] @replace_archetype :
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// CHECKO: [[E:%.*]] = init_existential_addr %0
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// CHECKO-DAG: [[C:%.*]] = unchecked_addr_cast [[E]] to $*S
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// CHECKO-DAG: [[M:%.*]] = metatype $@thick S.Type
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// CHECKO: = apply %{{[0-9]+}}<S>([[C]], [[M]], %1)
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// CHECKONONE: apply %{{[0-9]+}}<@opened
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// CHECK: } // end sil function 'replace_archetype'
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sil [ossa] @replace_archetype : $@convention(thin) (Int) -> @out any P {
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bb0(%0 : $*any P, %1 : $Int):
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%2 = metatype $@thick S.Type
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%3 = init_existential_metatype %2, $@thick any P.Type
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%4 = open_existential_metatype %3 to $@thick (@opened("0FC03D78-E9DB-11EF-B47C-0EA13E3AABB3", any P) Self).Type
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%6 = function_ref @createit : $@convention(thin) <τ_0_0 where τ_0_0 : P> (@thick τ_0_0.Type, Int) -> @out τ_0_0
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%7 = init_existential_addr %0, $@opened("0FC03D78-E9DB-11EF-B47C-0EA13E3AABB3", any P) Self
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%8 = apply %6<@opened("0FC03D78-E9DB-11EF-B47C-0EA13E3AABB3", any P) Self>(%7, %4, %1) : $@convention(thin) <τ_0_0 where τ_0_0 : P> (@thick τ_0_0.Type, Int) -> @out τ_0_0
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%11 = tuple ()
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return %11
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}
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// CHECK-LABEL: sil [ossa] @dont_replace_archetype_unknown_concrete_type1 :
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// CHECK: apply %{{[0-9]+}}<@opened
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// CHECK: } // end sil function 'dont_replace_archetype_unknown_concrete_type1'
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sil [ossa] @dont_replace_archetype_unknown_concrete_type1 : $@convention(thin) (Int, @thick any P.Type) -> @out any P {
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bb0(%0 : $*any P, %1 : $Int, %2 : $@thick any P.Type):
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%4 = open_existential_metatype %2 to $@thick (@opened("0FC03D78-E9DB-11EF-B47C-0EA13E3AABB3", any P) Self).Type
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%6 = function_ref @createit : $@convention(thin) <τ_0_0 where τ_0_0 : P> (@thick τ_0_0.Type, Int) -> @out τ_0_0
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%7 = init_existential_addr %0, $@opened("0FC03D78-E9DB-11EF-B47C-0EA13E3AABB3", any P) Self
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%8 = apply %6<@opened("0FC03D78-E9DB-11EF-B47C-0EA13E3AABB3", any P) Self>(%7, %4, %1) : $@convention(thin) <τ_0_0 where τ_0_0 : P> (@thick τ_0_0.Type, Int) -> @out τ_0_0
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%11 = tuple ()
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return %11
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}
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// CHECK-LABEL: sil [ossa] @dont_replace_archetype_unknown_concrete_type2 :
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// CHECK: apply %{{[0-9]+}}<@opened
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// CHECK: } // end sil function 'dont_replace_archetype_unknown_concrete_type2'
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sil [ossa] @dont_replace_archetype_unknown_concrete_type2 : $@convention(thin) (Int, @thick Bar.Type) -> @out any P {
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bb0(%0 : $*any P, %1 : $Int, %2 : $@thick Bar.Type):
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%3 = init_existential_metatype %2, $@thick any P.Type
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%4 = open_existential_metatype %3 to $@thick (@opened("0FC03D78-E9DB-11EF-B47C-0EA13E3AABB3", any P) Self).Type
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%6 = function_ref @createit : $@convention(thin) <τ_0_0 where τ_0_0 : P> (@thick τ_0_0.Type, Int) -> @out τ_0_0
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%7 = init_existential_addr %0, $@opened("0FC03D78-E9DB-11EF-B47C-0EA13E3AABB3", any P) Self
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%8 = apply %6<@opened("0FC03D78-E9DB-11EF-B47C-0EA13E3AABB3", any P) Self>(%7, %4, %1) : $@convention(thin) <τ_0_0 where τ_0_0 : P> (@thick τ_0_0.Type, Int) -> @out τ_0_0
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%11 = tuple ()
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return %11
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}
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// CHECK-LABEL: sil [ossa] @dont_replace_embedded_archetype :
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// CHECK: apply %{{[0-9]+}}<@opened
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// CHECK: } // end sil function 'dont_replace_embedded_archetype'
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sil [ossa] @dont_replace_embedded_archetype : $@convention(thin) (Int) -> () {
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bb0(%0 : $Int):
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%2 = metatype $@thick S.Type
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%3 = init_existential_metatype %2, $@thick any P.Type
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%4 = open_existential_metatype %3 to $@thick (@opened("0FC03D78-E9DB-11EF-B47C-0EA13E3AABB3", any P) Self).Type
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%5 = struct $GenS<@opened("0FC03D78-E9DB-11EF-B47C-0EA13E3AABB3", any P) Self> (%0)
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%6 = function_ref @useGenS : $@convention(thin) <τ_0_0 where τ_0_0 : P> (GenS<τ_0_0>) -> ()
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%8 = apply %6<@opened("0FC03D78-E9DB-11EF-B47C-0EA13E3AABB3", any P) Self>(%5) : $@convention(thin) <τ_0_0 where τ_0_0 : P> (GenS<τ_0_0>) -> ()
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%11 = tuple ()
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return %11
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}
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// CHECK-LABEL: sil [ossa] @dont_replace_returned_embedded_archetype :
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// CHECK: apply %{{[0-9]+}}<@opened
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// CHECK: } // end sil function 'dont_replace_returned_embedded_archetype'
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sil [ossa] @dont_replace_returned_embedded_archetype : $@convention(thin) (Int) -> () {
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bb0(%0 : $Int):
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%2 = metatype $@thick S.Type
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%3 = init_existential_metatype %2, $@thick any P.Type
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%4 = open_existential_metatype %3 to $@thick (@opened("0FC03D78-E9DB-11EF-B47C-0EA13E3AABB3", any P) Self).Type
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%5 = struct $GenS<@opened("0FC03D78-E9DB-11EF-B47C-0EA13E3AABB3", any P) Self> (%0)
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%6 = function_ref @returnGenS : $@convention(thin) <τ_0_0 where τ_0_0 : P> (@thick τ_0_0.Type) -> GenS<τ_0_0>
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%8 = apply %6<@opened("0FC03D78-E9DB-11EF-B47C-0EA13E3AABB3", any P) Self>(%4) : $@convention(thin) <τ_0_0 where τ_0_0 : P> (@thick τ_0_0.Type) -> GenS<τ_0_0>
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%11 = tuple ()
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return %11
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}
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sil [_semantics "array.conditional_cast"] @cast_int_array : $@convention(thin) (@guaranteed Array<Int>) -> @owned Optional<Array<Int>>
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sil [_semantics "array.conditional_cast"] @cast_any_int_array : $@convention(thin) (@guaranteed Array<Any>) -> @owned Optional<Array<Int>>
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// CHECK-LABEL: sil [ossa] @remove_array_cast :
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// CHECK: %1 = copy_value %0
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// CHECK: %2 = enum $Optional<Array<Int>>, #Optional.some!enumelt, %1
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// CHECK: return %2
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// CHECK: } // end sil function 'remove_array_cast'
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sil [ossa] @remove_array_cast : $@convention(thin) (@guaranteed Array<Int>) -> @owned Optional<Array<Int>> {
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bb0(%0 : @guaranteed $Array<Int>):
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%1 = function_ref @cast_int_array : $@convention(thin) (@guaranteed Array<Int>) -> @owned Optional<Array<Int>>
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%2 = apply %1(%0) : $@convention(thin) (@guaranteed Array<Int>) -> @owned Optional<Array<Int>>
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return %2
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}
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// CHECK-LABEL: sil [ossa] @dont_remove_array_cast :
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// CHECK: %2 = apply
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// CHECK: return %2
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// CHECK: } // end sil function 'dont_remove_array_cast'
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sil [ossa] @dont_remove_array_cast : $@convention(thin) (@guaranteed Array<Any>) -> @owned Optional<Array<Int>> {
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bb0(%0 : @guaranteed $Array<Any>):
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%1 = function_ref @cast_any_int_array : $@convention(thin) (@guaranteed Array<Any>) -> @owned Optional<Array<Int>>
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%2 = apply %1(%0) : $@convention(thin) (@guaranteed Array<Any>) -> @owned Optional<Array<Int>>
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return %2
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}
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