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Lazy property getters are usually non tivial functions (otherwise the user would not implement it as lazy property). Inlining such getters would most likely not benefit other optimizations because the top-level switch_enum cannot be constant folded in most cases. Also, not inlining lazy property getters enables optimizing them in CSE.
66 lines
2.9 KiB
Swift
66 lines
2.9 KiB
Swift
// RUN: %target-swift-emit-silgen -Xllvm -sil-full-demangle -parse-as-library -primary-file %s | %FileCheck %s
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// <rdar://problem/17405715> lazy property crashes silgen of implicit memberwise initializer
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// CHECK-LABEL: sil hidden [lazy_getter] [noinline] [ossa] @$s15lazy_properties19StructWithLazyFieldV4onceSivg : $@convention(method) (@inout StructWithLazyField) -> Int
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// CHECK-LABEL: sil hidden [ossa] @$s15lazy_properties19StructWithLazyFieldV4onceSivs : $@convention(method) (Int, @inout StructWithLazyField) -> ()
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// CHECK-LABEL: sil hidden [transparent] [ossa] @$s15lazy_properties19StructWithLazyFieldV4onceSivM : $@yield_once @convention(method) (@inout StructWithLazyField) -> @yields @inout Int
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// CHECK-LABEL: sil hidden [ossa] @$s15lazy_properties19StructWithLazyFieldV4onceACSiSg_tcfC : $@convention(method) (Optional<Int>, @thin StructWithLazyField.Type) -> @owned StructWithLazyField
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struct StructWithLazyField {
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lazy var once : Int = 42
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let someProp = "Some value"
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}
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// <rdar://problem/21057425> Crash while compiling attached test-app.
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// CHECK-LABEL: // lazy_properties.test21057425
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func test21057425() {
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var x = 0, y: Int = 0
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}
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// Anonymous closure parameters in lazy initializer crash SILGen
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// CHECK-LABEL: sil hidden [lazy_getter] [noinline] [ossa] @$s15lazy_properties22HasAnonymousParametersV1xSivg : $@convention(method) (@inout HasAnonymousParameters) -> Int
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// CHECK-LABEL: sil private [ossa] @$s15lazy_properties22HasAnonymousParametersV1xSivgS2iXEfU_ : $@convention(thin) (Int) -> Int
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// CHECK-LABEL: sil hidden [ossa] @$s15lazy_properties22HasAnonymousParametersV1xSivs : $@convention(method) (Int, @inout HasAnonymousParameters) -> ()
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// CHECK-LABEL: sil hidden [transparent] [ossa] @$s15lazy_properties22HasAnonymousParametersV1xSivM : $@yield_once @convention(method) (@inout HasAnonymousParameters) -> @yields @inout Int
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struct HasAnonymousParameters {
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lazy var x = { $0 }(0)
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}
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class LazyClass {
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lazy var x = 0
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}
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// CHECK-LABEL: sil hidden [lazy_getter] [noinline] [ossa] @$s15lazy_properties9LazyClassC1xSivg : $@convention(method) (@guaranteed LazyClass) -> Int
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// CHECK: ref_element_addr %0 : $LazyClass, #LazyClass.$__lazy_storage_$_x
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// CHECK: return
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// CHECK-LABEL: sil hidden [ossa] @$s15lazy_properties9LazyClassC1xSivs : $@convention(method) (Int, @guaranteed LazyClass) -> ()
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// CHECK: ref_element_addr %1 : $LazyClass, #LazyClass.$__lazy_storage_$_x
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// CHECK: return
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// rdar://problem/53956342
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class Butt {
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func foo() -> Int { return 0 }
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lazy var butt: Int = {
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func bar() -> Int{
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return foo()
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}
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return bar()
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}()
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}
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// Both the closure and the local function inside of it should capture 'self':
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// CHECK-LABEL: sil private [ossa] @$s15lazy_properties4ButtC4buttSivgSiyXEfU_ : $@convention(thin) (@guaranteed Butt) -> Int
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// CHECK-LABEL: sil private [ossa] @$s15lazy_properties4ButtC4buttSivgSiyXEfU_3barL_SiyF : $@convention(thin) (@guaranteed Butt) -> Int
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