mirror of
https://github.com/apple/swift.git
synced 2025-12-14 20:36:38 +01:00
709 lines
20 KiB
Swift
709 lines
20 KiB
Swift
// RUN: %target-swift-frontend -Xllvm -sil-full-demangle -parse-as-library -emit-silgen -enable-sil-ownership -verify %s | %FileCheck %s
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class MyClass {
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func foo() { }
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}
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func markUsed<T>(_ t: T) {}
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func marker_1() {}
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func marker_2() {}
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func marker_3() {}
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class BaseClass {}
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class DerivedClass : BaseClass {}
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var global_cond: Bool = false
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func bar(_ x: Int) {}
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func foo(_ x: Int, _ y: Bool) {}
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func abort() -> Never { abort() }
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func assignment(_ x: Int, y: Int) {
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var x = x
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var y = y
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x = 42
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y = 57
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_ = x
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_ = y
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(x, y) = (1,2)
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}
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// CHECK-LABEL: sil hidden @{{.*}}assignment
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// CHECK: integer_literal $Builtin.Int2048, 42
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// CHECK: assign
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// CHECK: integer_literal $Builtin.Int2048, 57
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// CHECK: assign
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func if_test(_ x: Int, y: Bool) {
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if (y) {
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bar(x);
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}
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bar(x);
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}
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// CHECK-LABEL: sil hidden @_T010statements7if_test{{[_0-9a-zA-Z]*}}F
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func if_else(_ x: Int, y: Bool) {
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if (y) {
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bar(x);
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} else {
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foo(x, y);
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}
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bar(x);
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}
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// CHECK-LABEL: sil hidden @_T010statements7if_else{{[_0-9a-zA-Z]*}}F
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func nested_if(_ x: Int, y: Bool, z: Bool) {
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if (y) {
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if (z) {
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bar(x);
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}
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} else {
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if (z) {
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foo(x, y);
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}
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}
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bar(x);
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}
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// CHECK-LABEL: sil hidden @_T010statements9nested_if{{[_0-9a-zA-Z]*}}F
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func nested_if_merge_noret(_ x: Int, y: Bool, z: Bool) {
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if (y) {
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if (z) {
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bar(x);
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}
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} else {
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if (z) {
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foo(x, y);
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}
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}
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}
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// CHECK-LABEL: sil hidden @_T010statements21nested_if_merge_noret{{[_0-9a-zA-Z]*}}F
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func nested_if_merge_ret(_ x: Int, y: Bool, z: Bool) -> Int {
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if (y) {
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if (z) {
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bar(x);
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}
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return 1
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} else {
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if (z) {
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foo(x, y);
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}
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}
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return 2
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}
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// CHECK-LABEL: sil hidden @_T010statements19nested_if_merge_ret{{[_0-9a-zA-Z]*}}F
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func else_break(_ x: Int, y: Bool, z: Bool) {
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while z {
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if y {
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} else {
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break
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}
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}
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}
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// CHECK-LABEL: sil hidden @_T010statements10else_break{{[_0-9a-zA-Z]*}}F
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func loop_with_break(_ x: Int, _ y: Bool, _ z: Bool) -> Int {
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while (x > 2) {
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if (y) {
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bar(x);
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break
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}
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}
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}
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// CHECK-LABEL: sil hidden @_T010statements15loop_with_break{{[_0-9a-zA-Z]*}}F
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func loop_with_continue(_ x: Int, y: Bool, z: Bool) -> Int {
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while (x > 2) {
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if (y) {
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bar(x);
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continue
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}
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_ = loop_with_break(x, y, z);
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}
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bar(x);
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}
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// CHECK-LABEL: sil hidden @_T010statements18loop_with_continue{{[_0-9a-zA-Z]*}}F
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func do_loop_with_continue(_ x: Int, y: Bool, z: Bool) -> Int {
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repeat {
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if (x < 42) {
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bar(x);
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continue
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}
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_ = loop_with_break(x, y, z);
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}
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while (x > 2);
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bar(x);
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}
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// CHECK-LABEL: sil hidden @_T010statements21do_loop_with_continue{{[_0-9a-zA-Z]*}}F
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// CHECK-LABEL: sil hidden @{{.*}}for_loops1
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func for_loops1(_ x: Int, c: Bool) {
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for i in 1..<100 {
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markUsed(i)
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}
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}
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// CHECK-LABEL: sil hidden @{{.*}}for_loops2
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func for_loops2() {
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// rdar://problem/19316670
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// CHECK: alloc_stack $Optional<MyClass>
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// CHECK-NEXT: [[WRITE:%.*]] = begin_access [modify] [unknown]
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// CHECK: [[NEXT:%[0-9]+]] = function_ref @_T0s16IndexingIteratorV4next{{[_0-9a-zA-Z]*}}F
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// CHECK-NEXT: apply [[NEXT]]<[MyClass]>
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// CHECK: class_method [[OBJ:%[0-9]+]] : $MyClass, #MyClass.foo!1
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let objects = [MyClass(), MyClass() ]
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for obj in objects {
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obj.foo()
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}
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return
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}
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func void_return() {
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let b:Bool
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if b {
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return
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}
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}
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// CHECK-LABEL: sil hidden @_T010statements11void_return{{[_0-9a-zA-Z]*}}F
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// CHECK: cond_br {{%[0-9]+}}, [[BB1:bb[0-9]+]], [[BB2:bb[0-9]+]]
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// CHECK: [[BB1]]:
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// CHECK: br [[EPILOG:bb[0-9]+]]
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// CHECK: [[BB2]]:
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// CHECK: br [[EPILOG]]
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// CHECK: [[EPILOG]]:
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// CHECK: [[R:%[0-9]+]] = tuple ()
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// CHECK: return [[R]]
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func foo() {}
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// <rdar://problem/13549626>
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// CHECK-LABEL: sil hidden @_T010statements14return_from_if{{[_0-9a-zA-Z]*}}F
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func return_from_if(_ a: Bool) -> Int {
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// CHECK: bb0(%0 : @trivial $Bool):
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// CHECK: cond_br {{.*}}, [[THEN:bb[0-9]+]], [[ELSE:bb[0-9]+]]
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if a {
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// CHECK: [[THEN]]:
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// CHECK: br [[EPILOG:bb[0-9]+]]({{%.*}})
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return 1
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} else {
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// CHECK: [[ELSE]]:
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// CHECK: br [[EPILOG]]({{%.*}})
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return 0
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}
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// CHECK-NOT: function_ref @foo
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// CHECK: [[EPILOG]]([[RET:%.*]] : @trivial $Int):
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// CHECK: return [[RET]]
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foo() // expected-warning {{will never be executed}}
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}
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class C {}
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func use(_ c: C) {}
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func for_each_loop(_ x: [C]) {
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for i in x {
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use(i)
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}
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_ = 0
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}
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// CHECK-LABEL: sil hidden @{{.*}}test_break
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func test_break(_ i : Int) {
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switch i {
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case (let x) where x != 17:
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if x == 42 { break }
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markUsed(x)
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default:
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break
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}
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}
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// <rdar://problem/19150249> Allow labeled "break" from an "if" statement
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// CHECK-LABEL: sil hidden @_T010statements13test_if_breakyyAA1CCSgF : $@convention(thin) (@owned Optional<C>) -> () {
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func test_if_break(_ c : C?) {
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// CHECK: bb0([[ARG:%.*]] : @owned $Optional<C>):
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label1:
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// CHECK: [[BORROWED_ARG:%.*]] = begin_borrow [[ARG]]
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// CHECK: [[ARG_COPY:%.*]] = copy_value [[BORROWED_ARG]]
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// CHECK: switch_enum [[ARG_COPY]] : $Optional<C>, case #Optional.some!enumelt.1: [[TRUE:bb[0-9]+]], case #Optional.none!enumelt: [[FALSE:bb[0-9]+]]
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if let x = c {
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// CHECK: [[TRUE]]({{.*}} : @owned $C):
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// CHECK: apply
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foo()
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// CHECK: destroy_value
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// CHECK: br [[FALSE:bb[0-9]+]]
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break label1
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use(x) // expected-warning {{will never be executed}}
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}
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// CHECK: [[FALSE]]:
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// CHECK: return
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}
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// CHECK-LABEL: sil hidden @_T010statements18test_if_else_breakyyAA1CCSgF : $@convention(thin) (@owned Optional<C>) -> () {
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func test_if_else_break(_ c : C?) {
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// CHECK: bb0([[ARG:%.*]] : @owned $Optional<C>):
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label2:
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// CHECK: [[BORROWED_ARG:%.*]] = begin_borrow [[ARG]]
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// CHECK: [[ARG_COPY:%.*]] = copy_value [[BORROWED_ARG]]
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// CHECK: switch_enum [[ARG_COPY]] : $Optional<C>, case #Optional.some!enumelt.1: [[TRUE:bb[0-9]+]], case #Optional.none!enumelt: [[FALSE:bb[0-9]+]]
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// CHECK: [[FALSE]]:
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// CHECK: end_borrow [[BORROWED_ARG]] from [[ARG]]
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// CHECK: br [[AFTER_FALSE:bb[0-9]+]]
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if let x = c {
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// CHECK: [[TRUE]]({{.*}} : @owned $C):
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use(x)
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// CHECK: br [[CONT:bb[0-9]+]]
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// CHECK: [[CONT]]:
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// CHECK: br [[EPILOG:bb[0-9]+]]
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} else {
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// CHECK: [[AFTER_FALSE]]:
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// CHECK: apply
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// CHECK: br [[EPILOG]]
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foo()
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break label2
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foo() // expected-warning {{will never be executed}}
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}
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// CHECK: [[EPILOG]]:
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// CHECK: return
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}
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// CHECK-LABEL: sil hidden @_T010statements23test_if_else_then_breakyySb_AA1CCSgtF
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func test_if_else_then_break(_ a : Bool, _ c : C?) {
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label3:
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// CHECK: bb0({{.*}}, [[ARG2:%.*]] : @owned $Optional<C>):
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// CHECK: [[BORROWED_ARG2:%.*]] = begin_borrow [[ARG2]]
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// CHECK: [[ARG2_COPY:%.*]] = copy_value [[BORROWED_ARG2]]
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// CHECK: switch_enum [[ARG2_COPY]] : $Optional<C>, case #Optional.some!enumelt.1: [[TRUE:bb[0-9]+]], case #Optional.none!enumelt: [[FALSE:bb[0-9]+]]
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// CHECK: [[FALSE]]:
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// CHECK: end_borrow [[BORROWED_ARG2]] from [[ARG2]]
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// CHECK: br [[COND2:bb[0-9]+]]
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if let x = c {
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// CHECK: [[TRUE]]({{.*}} : @owned $C):
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use(x)
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// CHECK: br [[TRUE_TRAMPOLINE:bb[0-9]+]]
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//
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// CHECK: [[TRUE_TRAMPOLINE]]:
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// CHECK: br [[EPILOG_BB:bb[0-9]+]]
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} else if a {
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// CHECK: [[COND2]]:
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// CHECK: cond_br {{.*}}, [[TRUE2:bb[0-9]+]], [[FALSE2:bb[0-9]+]]
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//
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// CHECK: [[TRUE2]]:
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// CHECK: apply
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// CHECK: br [[EPILOG_BB]]
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foo()
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break label3
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foo() // expected-warning {{will never be executed}}
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}
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// CHECK: [[FALSE2]]:
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// CHECK: br [[EPILOG_BB]]
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// CHECK: [[EPILOG_BB]]:
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// CHECK: return
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}
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// CHECK-LABEL: sil hidden @_T010statements13test_if_breakyySbF
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func test_if_break(_ a : Bool) {
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// CHECK: br [[LOOP:bb[0-9]+]]
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// CHECK: [[LOOP]]:
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// CHECK: function_ref @_T0Sb21_getBuiltinLogicValue{{[_0-9a-zA-Z]*}}F
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// CHECK-NEXT: apply
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// CHECK-NEXT: cond_br {{.*}}, [[LOOPTRUE:bb[0-9]+]], [[OUT:bb[0-9]+]]
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while a {
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if a {
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foo()
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break // breaks out of while, not if.
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}
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foo()
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}
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// CHECK: [[LOOPTRUE]]:
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// CHECK: function_ref @_T0Sb21_getBuiltinLogicValue{{[_0-9a-zA-Z]*}}F
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// CHECK-NEXT: apply
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// CHECK-NEXT: cond_br {{.*}}, [[IFTRUE:bb[0-9]+]], [[IFFALSE:bb[0-9]+]]
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// [[IFTRUE]]:
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// CHECK: function_ref statements.foo
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// CHECK: br [[OUT]]
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// CHECK: [[IFFALSE]]:
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// CHECK: function_ref statements.foo
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// CHECK: br [[LOOP]]
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// CHECK: [[OUT]]:
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// CHECK: return
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}
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// CHECK-LABEL: sil hidden @_T010statements7test_doyyF
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func test_do() {
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// CHECK: integer_literal $Builtin.Int2048, 0
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// CHECK: [[BAR:%.*]] = function_ref @_T010statements3baryySiF
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// CHECK: apply [[BAR]](
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bar(0)
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// CHECK-NOT: br bb
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do {
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// CHECK: [[CTOR:%.*]] = function_ref @_T010statements7MyClassC{{[_0-9a-zA-Z]*}}fC
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// CHECK: [[OBJ:%.*]] = apply [[CTOR]](
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let obj = MyClass()
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_ = obj
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// CHECK: integer_literal $Builtin.Int2048, 1
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// CHECK: [[BAR:%.*]] = function_ref @_T010statements3baryySiF
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// CHECK: apply [[BAR]](
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bar(1)
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// CHECK-NOT: br bb
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// CHECK: destroy_value [[OBJ]]
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// CHECK-NOT: br bb
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}
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// CHECK: integer_literal $Builtin.Int2048, 2
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// CHECK: [[BAR:%.*]] = function_ref @_T010statements3baryySiF
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// CHECK: apply [[BAR]](
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bar(2)
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}
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// CHECK-LABEL: sil hidden @_T010statements15test_do_labeledyyF
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func test_do_labeled() {
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// CHECK: integer_literal $Builtin.Int2048, 0
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// CHECK: [[BAR:%.*]] = function_ref @_T010statements3baryySiF
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// CHECK: apply [[BAR]](
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bar(0)
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// CHECK: br bb1
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// CHECK: bb1:
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lbl: do {
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// CHECK: [[CTOR:%.*]] = function_ref @_T010statements7MyClassC{{[_0-9a-zA-Z]*}}fC
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// CHECK: [[OBJ:%.*]] = apply [[CTOR]](
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let obj = MyClass()
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_ = obj
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// CHECK: integer_literal $Builtin.Int2048, 1
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// CHECK: [[BAR:%.*]] = function_ref @_T010statements3baryySiF
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// CHECK: apply [[BAR]](
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bar(1)
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// CHECK: [[GLOBAL:%.*]] = function_ref @_T010statements11global_condSbvau
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// CHECK: cond_br {{%.*}}, bb2, bb3
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if (global_cond) {
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// CHECK: bb2:
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// CHECK: destroy_value [[OBJ]]
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// CHECK: br bb1
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continue lbl
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}
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// CHECK: bb3:
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// CHECK: integer_literal $Builtin.Int2048, 2
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// CHECK: [[BAR:%.*]] = function_ref @_T010statements3baryySiF
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// CHECK: apply [[BAR]](
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bar(2)
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// CHECK: [[GLOBAL:%.*]] = function_ref @_T010statements11global_condSbvau
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// CHECK: cond_br {{%.*}}, bb4, bb5
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if (global_cond) {
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// CHECK: bb4:
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// CHECK: destroy_value [[OBJ]]
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// CHECK: br bb6
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break lbl
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}
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// CHECK: bb5:
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// CHECK: integer_literal $Builtin.Int2048, 3
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// CHECK: [[BAR:%.*]] = function_ref @_T010statements3baryySiF
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// CHECK: apply [[BAR]](
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bar(3)
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// CHECK: destroy_value [[OBJ]]
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// CHECK: br bb6
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}
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// CHECK: integer_literal $Builtin.Int2048, 4
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// CHECK: [[BAR:%.*]] = function_ref @_T010statements3baryySiF
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// CHECK: apply [[BAR]](
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bar(4)
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}
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func callee1() {}
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func callee2() {}
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func callee3() {}
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// CHECK-LABEL: sil hidden @_T010statements11defer_test1yyF
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func defer_test1() {
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defer { callee1() }
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defer { callee2() }
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callee3()
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// CHECK: [[C3:%.*]] = function_ref @_T010statements7callee3yyF
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// CHECK: apply [[C3]]
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// CHECK: [[C2:%.*]] = function_ref @_T010statements11defer_test1yyF6
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// CHECK: apply [[C2]]
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// CHECK: [[C1:%.*]] = function_ref @_T010statements11defer_test1yyF6
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// CHECK: apply [[C1]]
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}
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// CHECK: sil private @_T010statements11defer_test1yyF6
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// CHECK: function_ref @{{.*}}callee1yyF
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// CHECK: sil private @_T010statements11defer_test1yyF6
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// CHECK: function_ref @{{.*}}callee2yyF
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// CHECK-LABEL: sil hidden @_T010statements11defer_test2yySbF
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func defer_test2(_ cond : Bool) {
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// CHECK: [[C3:%.*]] = function_ref @{{.*}}callee3yyF
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// CHECK: apply [[C3]]
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// CHECK: br [[LOOP:bb[0-9]+]]
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callee3()
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// CHECK: [[LOOP]]:
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// test the condition.
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// CHECK: [[CONDTRUE:%.*]] = apply {{.*}}(%0)
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// CHECK: cond_br [[CONDTRUE]], [[BODY:bb[0-9]+]], [[EXIT:bb[0-9]+]]
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while cond {
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// CHECK: [[BODY]]:
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// CHECK: [[C2:%.*]] = function_ref @{{.*}}callee2yyF
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// CHECK: apply [[C2]]
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// CHECK: [[C1:%.*]] = function_ref @_T010statements11defer_test2yySbF6
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// CHECK: apply [[C1]]
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// CHECK: br [[EXIT]]
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defer { callee1() }
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callee2()
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break
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}
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// CHECK: [[EXIT]]:
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|
// CHECK: [[C3:%.*]] = function_ref @{{.*}}callee3yyF
|
|
// CHECK: apply [[C3]]
|
|
|
|
callee3()
|
|
}
|
|
|
|
func generic_callee_1<T>(_: T) {}
|
|
func generic_callee_2<T>(_: T) {}
|
|
func generic_callee_3<T>(_: T) {}
|
|
|
|
// CHECK-LABEL: sil hidden @_T010statements16defer_in_generic{{[_0-9a-zA-Z]*}}F
|
|
func defer_in_generic<T>(_ x: T) {
|
|
// CHECK: [[C3:%.*]] = function_ref @_T010statements16generic_callee_3{{[_0-9a-zA-Z]*}}F
|
|
// CHECK: apply [[C3]]<T>
|
|
// CHECK: [[C2:%.*]] = function_ref @_T010statements16defer_in_genericyyxlF6
|
|
// CHECK: apply [[C2]]<T>
|
|
// CHECK: [[C1:%.*]] = function_ref @_T010statements16defer_in_genericyyxlF6
|
|
// CHECK: apply [[C1]]<T>
|
|
defer { generic_callee_1(x) }
|
|
defer { generic_callee_2(x) }
|
|
generic_callee_3(x)
|
|
}
|
|
|
|
// CHECK-LABEL: sil hidden @_T010statements017defer_in_closure_C8_genericyyxlF : $@convention(thin) <T> (@in T) -> ()
|
|
func defer_in_closure_in_generic<T>(_ x: T) {
|
|
// CHECK-LABEL: sil private @_T010statements017defer_in_closure_C8_genericyyxlFyycfU_ : $@convention(thin) <T> () -> ()
|
|
_ = {
|
|
// CHECK-LABEL: sil private @_T010statements017defer_in_closure_C8_genericyyxlFyycfU_6$deferL_yylF : $@convention(thin) <T> () -> ()
|
|
defer { generic_callee_1(T.self) }
|
|
}
|
|
}
|
|
|
|
// CHECK-LABEL: sil hidden @_T010statements13defer_mutableyySiF
|
|
func defer_mutable(_ x: Int) {
|
|
var x = x
|
|
// CHECK: [[BOX:%.*]] = alloc_box ${ var Int }
|
|
// CHECK-NEXT: project_box [[BOX]]
|
|
// CHECK-NOT: [[BOX]]
|
|
// CHECK: function_ref @_T010statements13defer_mutableyySiF6$deferL_yyF : $@convention(thin) (@inout_aliasable Int) -> ()
|
|
// CHECK-NOT: [[BOX]]
|
|
// CHECK: destroy_value [[BOX]]
|
|
defer { _ = x }
|
|
}
|
|
|
|
protocol StaticFooProtocol { static func foo() }
|
|
|
|
func testDeferOpenExistential(_ b: Bool, type: StaticFooProtocol.Type) {
|
|
defer { type.foo() }
|
|
if b { return }
|
|
return
|
|
}
|
|
|
|
|
|
|
|
|
|
// CHECK-LABEL: sil hidden @_T010statements22testRequireExprPatternyySiF
|
|
|
|
func testRequireExprPattern(_ a : Int) {
|
|
marker_1()
|
|
// CHECK: [[M1:%[0-9]+]] = function_ref @_T010statements8marker_1yyF : $@convention(thin) () -> ()
|
|
// CHECK-NEXT: apply [[M1]]() : $@convention(thin) () -> ()
|
|
|
|
// CHECK: function_ref Swift.~= infix<A where A: Swift.Equatable>(A, A) -> Swift.Bool
|
|
// CHECK: cond_br {{.*}}, bb1, bb2
|
|
guard case 4 = a else { marker_2(); return }
|
|
|
|
// Fall through case comes first.
|
|
|
|
// CHECK: bb1:
|
|
// CHECK: [[M3:%[0-9]+]] = function_ref @_T010statements8marker_3yyF : $@convention(thin) () -> ()
|
|
// CHECK-NEXT: apply [[M3]]() : $@convention(thin) () -> ()
|
|
// CHECK-NEXT: br bb3
|
|
marker_3()
|
|
|
|
// CHECK: bb2:
|
|
// CHECK: [[M2:%[0-9]+]] = function_ref @_T010statements8marker_2yyF : $@convention(thin) () -> ()
|
|
// CHECK-NEXT: apply [[M2]]() : $@convention(thin) () -> ()
|
|
// CHECK-NEXT: br bb3
|
|
|
|
// CHECK: bb3:
|
|
// CHECK-NEXT: tuple ()
|
|
// CHECK-NEXT: return
|
|
}
|
|
|
|
|
|
// CHECK-LABEL: sil hidden @_T010statements20testRequireOptional1yS2iSgF
|
|
// CHECK: bb0([[ARG:%.*]] : @trivial $Optional<Int>):
|
|
// CHECK-NEXT: debug_value [[ARG]] : $Optional<Int>, let, name "a"
|
|
// CHECK-NEXT: switch_enum [[ARG]] : $Optional<Int>, case #Optional.some!enumelt.1: [[SOME:bb[0-9]+]], case #Optional.none!enumelt: [[NONE:bb[0-9]+]]
|
|
func testRequireOptional1(_ a : Int?) -> Int {
|
|
|
|
// CHECK: [[NONE]]:
|
|
// CHECK: br [[ABORT:bb[0-9]+]]
|
|
|
|
// CHECK: [[SOME]]([[PAYLOAD:%.*]] : @trivial $Int):
|
|
// CHECK-NEXT: debug_value [[PAYLOAD]] : $Int, let, name "t"
|
|
// CHECK-NEXT: br [[EPILOG:bb[0-9]+]]
|
|
//
|
|
// CHECK: [[EPILOG]]:
|
|
// CHECK-NEXT: return [[PAYLOAD]] : $Int
|
|
guard let t = a else { abort() }
|
|
|
|
// CHECK: [[ABORT]]:
|
|
// CHECK-NEXT: // function_ref statements.abort() -> Swift.Never
|
|
// CHECK-NEXT: [[FUNC_REF:%.*]] = function_ref @_T010statements5aborts5NeverOyF
|
|
// CHECK-NEXT: apply [[FUNC_REF]]() : $@convention(thin) () -> Never
|
|
// CHECK-NEXT: unreachable
|
|
return t
|
|
}
|
|
|
|
// CHECK-LABEL: sil hidden @_T010statements20testRequireOptional2yS2SSgF
|
|
// CHECK: bb0([[ARG:%.*]] : @owned $Optional<String>):
|
|
// CHECK-NEXT: debug_value [[ARG]] : $Optional<String>, let, name "a"
|
|
// CHECK-NEXT: [[BORROWED_ARG:%.*]] = begin_borrow [[ARG]]
|
|
// CHECK-NEXT: [[ARG_COPY:%.*]] = copy_value [[BORROWED_ARG]] : $Optional<String>
|
|
// CHECK-NEXT: switch_enum [[ARG_COPY]] : $Optional<String>, case #Optional.some!enumelt.1: [[SOME_BB:bb[0-9]+]], case #Optional.none!enumelt: [[NONE_BB:bb[0-9]+]]
|
|
func testRequireOptional2(_ a : String?) -> String {
|
|
guard let t = a else { abort() }
|
|
|
|
// CHECK: [[NONE_BB]]:
|
|
// CHECK-NEXT: end_borrow [[BORROWED_ARG]] from [[ARG]]
|
|
// CHECK-NEXT: br [[ABORT_BB:bb[0-9]+]]
|
|
|
|
// CHECK: [[SOME_BB]]([[STR:%.*]] : @owned $String):
|
|
// CHECK-NEXT: debug_value [[STR]] : $String, let, name "t"
|
|
// CHECK-NEXT: br [[CONT_BB:bb[0-9]+]]
|
|
// CHECK: [[CONT_BB]]:
|
|
// CHECK-NEXT: end_borrow [[BORROWED_ARG]] from [[ARG]]
|
|
// CHECK-NEXT: [[BORROWED_STR:%.*]] = begin_borrow [[STR]]
|
|
// CHECK-NEXT: [[RETURN:%.*]] = copy_value [[BORROWED_STR]]
|
|
// CHECK-NEXT: end_borrow [[BORROWED_STR]] from [[STR]]
|
|
// CHECK-NEXT: destroy_value [[STR]] : $String
|
|
// CHECK-NEXT: destroy_value [[ARG]]
|
|
// CHECK-NEXT: return [[RETURN]] : $String
|
|
|
|
// CHECK: [[ABORT_BB]]:
|
|
// CHECK-NEXT: // function_ref statements.abort() -> Swift.Never
|
|
// CHECK-NEXT: [[ABORT_FUNC:%.*]] = function_ref @_T010statements5aborts5NeverOyF
|
|
// CHECK-NEXT: [[NEVER:%.*]] = apply [[ABORT_FUNC]]()
|
|
// CHECK-NEXT: unreachable
|
|
return t
|
|
}
|
|
|
|
|
|
// CHECK-LABEL: sil hidden @_T010statements19testCleanupEmission{{[_0-9a-zA-Z]*}}F
|
|
// <rdar://problem/20563234> let-else problem: cleanups for bound patterns shouldn't be run in the else block
|
|
protocol MyProtocol {}
|
|
func testCleanupEmission<T>(_ x: T) {
|
|
// SILGen shouldn't crash/verify abort on this example.
|
|
guard let x2 = x as? MyProtocol else { return }
|
|
_ = x2
|
|
}
|
|
|
|
|
|
// CHECK-LABEL: sil hidden @_T010statements15test_is_patternyyAA9BaseClassCF
|
|
func test_is_pattern(_ y : BaseClass) {
|
|
// checked_cast_br %0 : $BaseClass to $DerivedClass
|
|
guard case is DerivedClass = y else { marker_1(); return }
|
|
|
|
marker_2()
|
|
}
|
|
|
|
// CHECK-LABEL: sil hidden @_T010statements15test_as_patternyAA12DerivedClassCAA04BaseF0CF
|
|
func test_as_pattern(_ y : BaseClass) -> DerivedClass {
|
|
// CHECK: bb0([[ARG:%.*]] : @owned $BaseClass):
|
|
// CHECK: [[BORROWED_ARG:%.*]] = begin_borrow [[ARG]]
|
|
// CHECK: [[ARG_COPY:%.*]] = copy_value [[BORROWED_ARG]]
|
|
// CHECK: checked_cast_br [[ARG_COPY]] : $BaseClass to $DerivedClass
|
|
guard case let result as DerivedClass = y else { }
|
|
// CHECK: bb{{.*}}({{.*}} : @owned $DerivedClass):
|
|
|
|
|
|
// CHECK: bb{{.*}}([[PTR:%[0-9]+]] : @owned $DerivedClass):
|
|
// CHECK-NEXT: debug_value [[PTR]] : $DerivedClass, let, name "result"
|
|
// CHECK-NEXT: br [[CONT_BB:bb[0-9]+]]
|
|
// CHECK: [[CONT_BB]]:
|
|
// CHECK-NEXT: end_borrow [[BORROWED_ARG]] from [[ARG]]
|
|
// CHECK-NEXT: [[BORROWED_PTR:%.*]] = begin_borrow [[PTR]]
|
|
// CHECK-NEXT: [[RESULT:%.*]] = copy_value [[BORROWED_PTR]]
|
|
// CHECK-NEXT: end_borrow [[BORROWED_PTR]] from [[PTR]]
|
|
// CHECK-NEXT: destroy_value [[PTR]] : $DerivedClass
|
|
// CHECK-NEXT: destroy_value [[ARG]] : $BaseClass
|
|
// CHECK-NEXT: return [[RESULT]] : $DerivedClass
|
|
return result
|
|
}
|
|
// CHECK-LABEL: sil hidden @_T010statements22let_else_tuple_bindingyS2i_SitSgF
|
|
func let_else_tuple_binding(_ a : (Int, Int)?) -> Int {
|
|
|
|
// CHECK: bb0([[ARG:%.*]] : @trivial $Optional<(Int, Int)>):
|
|
// CHECK-NEXT: debug_value [[ARG]] : $Optional<(Int, Int)>, let, name "a"
|
|
// CHECK-NEXT: switch_enum [[ARG]] : $Optional<(Int, Int)>, case #Optional.some!enumelt.1: [[SOME_BB:bb[0-9]+]], case #Optional.none!enumelt: [[NONE_BB:bb[0-9]+]]
|
|
|
|
guard let (x, y) = a else { }
|
|
_ = y
|
|
return x
|
|
|
|
// CHECK: [[SOME_BB]]([[PAYLOAD:%.*]] : @trivial $(Int, Int)):
|
|
// CHECK-NEXT: [[PAYLOAD_1:%.*]] = tuple_extract [[PAYLOAD]] : $(Int, Int), 0
|
|
// CHECK-NEXT: debug_value [[PAYLOAD_1]] : $Int, let, name "x"
|
|
// CHECK-NEXT: [[PAYLOAD_2:%.*]] = tuple_extract [[PAYLOAD]] : $(Int, Int), 1
|
|
// CHECK-NEXT: debug_value [[PAYLOAD_2]] : $Int, let, name "y"
|
|
// CHECK-NEXT: br [[CONT_BB:bb[0-9]+]]
|
|
// CHECK: [[CONT_BB]]:
|
|
// CHECK-NEXT: return [[PAYLOAD_1]] : $Int
|
|
}
|
|
|