1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
|
// RUN: %target-swift-frontend -Onone -emit-sil -parse-as-library %s | %FileCheck %s --check-prefix=CHECK --check-prefix=NONE
// RUN: %target-swift-frontend -Osize -emit-sil -parse-as-library %s | %FileCheck %s --check-prefix=CHECK --check-prefix=OPT
// RUN: %target-swift-frontend -O -emit-sil -parse-as-library %s | %FileCheck %s --check-prefix=CHECK --check-prefix=OPT
// RUN: %target-swift-frontend -Ounchecked -emit-sil -parse-as-library %s | %FileCheck %s --check-prefix=CHECK --check-prefix=UNCHECKED
@inline(never)
func takesInoutAndEscaping(_: inout Int, _ f: @escaping () -> ()) {
f()
}
@inline(never)
func escapeClosure(_ f: @escaping () -> ()) -> () -> () {
return f
}
public func accessIntTwice() {
var x = 0
takesInoutAndEscaping(&x, escapeClosure({ x = 3 }))
}
// accessIntTwice()
// CHECK-LABEL: sil @$s26access_enforcement_options0A8IntTwiceyyF : $@convention(thin) () -> () {
// CHECK: [[BOX:%.*]] = alloc_box ${ var Int }, var, name "x"
// CHECK: [[PROJ:%.*]] = project_box [[BOX]] : ${ var Int }, 0
// NONE: [[ACCESS:%.*]] = begin_access [modify] [dynamic] [[PROJ]] : $*Int
// OPT: [[ACCESS:%.*]] = begin_access [modify] [dynamic] [[PROJ]] : $*Int
// UNCHECKED-NOT: = begin_access
// CHECK-LABEL: } // end sil function '$s26access_enforcement_options0A8IntTwiceyyF'
// closure #1 in accessIntTwice()
// CHECK-LABEL: sil {{.*}}@$s26access_enforcement_options0A8IntTwiceyyFyycfU_ : $@convention(thin) (@guaranteed { var Int }) -> () {
// CHECK: bb0(%0 : @closureCapture ${ var Int }):
// CHECK: [[PROJ:%.*]] = project_box %0 : ${ var Int }, 0
// NONE: [[ACCESS:%.*]] = begin_access [modify] [dynamic] [[PROJ]] : $*Int
// OPT: [[ACCESS:%.*]] = begin_access [modify] [dynamic] [no_nested_conflict] [[PROJ]] : $*Int
// UNCHECKED-NOT: = begin_access
// CHECK-LABEL: } // end sil function '$s26access_enforcement_options0A8IntTwiceyyFyycfU_'
|
