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4009814783
Delay the emission of SIL global variables that aren't externally visible until they are actually used. This is the same lazy emission approach that we use for a number of other entities, such as SIL functions. Part of rdar://158363967.
90 lines
3.4 KiB
Swift
90 lines
3.4 KiB
Swift
// RUN: %empty-directory(%t)
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// RUN: split-file %s %t
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// Library module
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// SIL checking
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// RUN: %target-swift-frontend %t/Library.swift -parse-as-library -entry-point-function-name Library_main -enable-experimental-feature Embedded -enable-experimental-feature DeferredCodeGen -emit-sil -emit-module-path %t/Modules/Library.swiftmodule -o - | %FileCheck -check-prefix LIBRARY-SIL %s
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// IR checking to ensure we get the right weak symbols.
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// RUN: %target-swift-frontend %t/Library.swift -parse-as-library -entry-point-function-name Library_main -enable-experimental-feature Embedded -enable-experimental-feature DeferredCodeGen -emit-ir -o - | %FileCheck -check-prefix LIBRARY-IR --dump-input-filter all %s
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// Application module
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// RUN: %target-swift-frontend %t/Application.swift -I %t/Modules -parse-as-library -entry-point-function-name Application_main -enable-experimental-feature Embedded -emit-sil -o - | %FileCheck -check-prefix APPLICATION-SIL %s
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// RUN: %target-swift-frontend %t/Application.swift -I %t/Modules -parse-as-library -entry-point-function-name Application_main -enable-experimental-feature Embedded -emit-ir -o - | %FileCheck -check-prefix APPLICATION-IR --dump-input-filter all %s
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// REQUIRES: swift_in_compiler
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// REQUIRES: swift_feature_Embedded
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// REQUIRES: swift_feature_DeferredCodeGen
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//--- Library.swift
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// Never referenced.
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// LIBRARY-IR-NOT: @"$es23_swiftEmptyArrayStorageSi_S3itvp" = weak_odr {{(protected |dllexport )?}}global
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// Note: referenced by swift_allocEmptyBox.
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// LIBRARY-IR: @"$es16_emptyBoxStorageSi_Sitvp" = weak_odr {{(protected |dllexport )?}}global
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// LIBRARY-IR-NOT: define {{.*}}@"$e7Library5helloSaySiGyF"()
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public func hello() -> [Int] {
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getArray()
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}
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// LIBRARY-IR-NOT: define {{.*}} @"$e7Library8getArraySaySiGyF"()
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public func getArray() -> [Int] {
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throughInternal()
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}
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// LIBRARY-IR-NOT: define {{.*}} @"$e7Library15throughInternalSaySiGyF"()
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func throughInternal() -> [Int] {
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throughPrivate()
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}
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// LIBRARY-IR-NOT: define {{.*}} @"$e7Library14throughPrivate
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private func throughPrivate() -> [Int] {
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[5, 6, 7]
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}
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// LIBRARY-IR-NOT: unnecessary
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public func unnecessary() -> Int64 { 5 }
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// LIBRARY-IR: define {{.*}} @"$e7Library14unusedYetThere
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@_neverEmitIntoClient
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public func unusedYetThere() -> Int64 { 5 }
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// LIBRARY-IR-NOT: define swiftcc
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// LIBRARY-IR-NOT: define hidden swiftcc
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// LIBRARY-IR-NOT: define {{.*}} @"$es27_allocateUninitializedArrayySayxG_BptBwlFSi_Tg5"
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// LIBRARY-SIL: sil @$e7Library5helloSaySiGyF
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// LIBRARY-SIL: sil @$e7Library8getArraySaySiGyF : $@convention(thin) () -> @owned Array<Int> {
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//--- Application.swift
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import Library
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public func testMe() {
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_ = hello()
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_ = getArray()
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}
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// APPLICATION-IR: define {{(protected |dllexport )?}}swiftcc void @"$e11Application6testMeyyF"()
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// APPLICATION-SIL: sil public_external @$e7Library5helloSaySiGyF : $@convention(thin) () -> @owned Array<Int> {
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// APPLICATION-IR: define linkonce_odr hidden swiftcc ptr @"$e7Library5helloSaySiGyF"()
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// APPLICATION-SIL: sil public_external @$e7Library8getArraySaySiGyF : $@convention(thin) () -> @owned Array<Int> {
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// APPLICATION-IR: define linkonce_odr hidden swiftcc ptr @"$e7Library8getArraySaySiGyF"()
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// APPLICATION-IR: define {{(protected |dllexport )?}}i32 @Application_main
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// APPLICATION-IR: define linkonce_odr hidden swiftcc { ptr, ptr } @"$es27_allocateUninitializedArrayySayxG_BptBwlFSi_Tg5"
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@main
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struct Main {
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static func main() {
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}
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}
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