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registers instead of eagerly dumping them in memory and operating on them by-address. This avoids a lot of temporaries and traffic to manipulate them. As part of this, add some new SGF::getOptionalNoneValue/getOptionalSomeValue helper methods for forming loading optional values. Many thanks to JoeG for helping with the abstraction difference change in getOptionalSomeValue. Swift SVN r27537
62 lines
2.5 KiB
Swift
62 lines
2.5 KiB
Swift
// RUN: %target-swift-frontend(mock-sdk: %clang-importer-sdk) -I %S/Inputs/custom-modules -emit-silgen -o - %s | FileCheck %s
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// REQUIRES: objc_interop
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import ObjectiveC
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import Foundation
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import objc_ext
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import TestProtocols
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class A {
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@objc func foo() -> String? {
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return ""
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}
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// CHECK-LABEL: sil hidden @_TToFC8optional1A3foofS0_FT_GSqSS_ : $@convention(objc_method) (A) -> @autoreleased Optional<NSString>
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// CHECK: [[T0:%.*]] = function_ref @_TFC8optional1A3foofS0_FT_GSqSS_
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// CHECK-NEXT: [[T1:%.*]] = apply [[T0]](%0)
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// CHECK-NEXT: strong_release
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// CHECK: [[T2:%.*]] = select_enum [[T1]]
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// CHECK-NEXT: cond_br [[T2]]
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// Something branch: project value, translate, inject into result.
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// CHECK: [[STR:%.*]] = unchecked_enum_data [[T1]]
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// CHECK: [[T0:%.*]] = function_ref @swift_StringToNSString
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// CHECK-NEXT: [[T1:%.*]] = apply [[T0]]([[STR]])
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// CHECK-NEXT: enum $Optional<NSString>, #Optional.Some!enumelt.1, [[T1]]
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// CHECK-NEXT: br
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// Nothing branch: inject nothing into result.
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// CHECK: enum $Optional<NSString>, #Optional.None!enumelt
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// CHECK-NEXT: br
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// Continuation.
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// CHECK: bb3([[T0:%.*]] : $Optional<NSString>):
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// CHECK-NEXT: autorelease_return [[T0]]
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@objc func bar(#x : String?) {}
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// CHECK-LABEL: sil hidden @_TToFC8optional1A3barfS0_FT1xGSqSS__T_ : $@convention(objc_method) (Optional<NSString>, A) -> ()
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// CHECK: [[T1:%.*]] = select_enum %0
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// CHECK-NEXT: cond_br [[T1]]
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// Something branch: project value, translate, inject into result.
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// CHECK: [[NSSTR:%.*]] = unchecked_enum_data %0
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// CHECK: [[T0:%.*]] = function_ref @swift_NSStringToString
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// Make a temporary initialized string that we're going to clobber as part of the conversion process (?).
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// CHECK-NEXT: [[NSSTR_BOX:%.*]] = enum $Optional<NSString>, #Optional.Some!enumelt.1, [[NSSTR]] : $NSString
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// CHECK-NEXT: [[T1:%.*]] = apply [[T0]]([[NSSTR_BOX]])
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// CHECK-NEXT: enum $Optional<String>, #Optional.Some!enumelt.1, [[T1]]
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// CHECK-NEXT: br
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// Nothing branch: inject nothing into result.
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// CHECK: enum $Optional<String>, #Optional.None!enumelt
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// CHECK-NEXT: br
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// Continuation.
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// CHECK: bb3([[T0:%.*]] : $Optional<String>):
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// CHECK: [[T1:%.*]] = function_ref @_TFC8optional1A3barfS0_FT1xGSqSS__T_
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// CHECK-NEXT: [[T2:%.*]] = apply [[T1]]([[T0]], %1)
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// CHECK-NEXT: strong_release %1
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// CHECK-NEXT: return [[T2]] : $()
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}
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// rdar://15144951
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class TestWeak : NSObject {
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weak var b : WeakObject? = nil
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}
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class WeakObject : NSObject {}
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