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9e44011e4d
I am adding this to make it easy to determine if a SILFunction that is not inout aliasable is captured. This is useful when emitting certain types of diagnostics like I need to emit with move only.
38 lines
1.8 KiB
Swift
38 lines
1.8 KiB
Swift
// RUN: %target-swift-frontend -Onone -emit-sil -parse-as-library %s | %FileCheck %s --check-prefix=CHECK --check-prefix=NONE
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// RUN: %target-swift-frontend -Osize -emit-sil -parse-as-library %s | %FileCheck %s --check-prefix=CHECK --check-prefix=OPT
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// RUN: %target-swift-frontend -O -emit-sil -parse-as-library %s | %FileCheck %s --check-prefix=CHECK --check-prefix=OPT
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// RUN: %target-swift-frontend -Ounchecked -emit-sil -parse-as-library %s | %FileCheck %s --check-prefix=CHECK --check-prefix=UNCHECKED
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@inline(never)
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func takesInoutAndEscaping(_: inout Int, _ f: @escaping () -> ()) {
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f()
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}
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@inline(never)
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func escapeClosure(_ f: @escaping () -> ()) -> () -> () {
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return f
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}
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public func accessIntTwice() {
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var x = 0
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takesInoutAndEscaping(&x, escapeClosure({ x = 3 }))
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}
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// accessIntTwice()
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// CHECK-LABEL: sil @$s26access_enforcement_options0A8IntTwiceyyF : $@convention(thin) () -> () {
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// CHECK: [[BOX:%.*]] = alloc_box ${ var Int }, var, name "x"
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// CHECK: [[PROJ:%.*]] = project_box [[BOX]] : ${ var Int }, 0
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// NONE: [[ACCESS:%.*]] = begin_access [modify] [dynamic] [[PROJ]] : $*Int
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// OPT: [[ACCESS:%.*]] = begin_access [modify] [dynamic] [[PROJ]] : $*Int
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// UNCHECKED-NOT: = begin_access
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// CHECK-LABEL: } // end sil function '$s26access_enforcement_options0A8IntTwiceyyF'
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// closure #1 in accessIntTwice()
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// CHECK-LABEL: sil {{.*}}@$s26access_enforcement_options0A8IntTwiceyyFyycfU_ : $@convention(thin) (@guaranteed { var Int }) -> () {
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// CHECK: bb0(%0 : @closureCapture ${ var Int }):
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// CHECK: [[PROJ:%.*]] = project_box %0 : ${ var Int }, 0
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// NONE: [[ACCESS:%.*]] = begin_access [modify] [dynamic] [[PROJ]] : $*Int
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// OPT: [[ACCESS:%.*]] = begin_access [modify] [dynamic] [no_nested_conflict] [[PROJ]] : $*Int
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// UNCHECKED-NOT: = begin_access
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// CHECK-LABEL: } // end sil function '$s26access_enforcement_options0A8IntTwiceyyFyycfU_'
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