Dmitri tracked it down and has a fix for it, and then I had a complaint about his fix, and then I didn't get back to it. :-)
https://github.com/apple/swift/pull/4622 Jordan > On Sep 9, 2016, at 14:50, Slava Pestov via swift-dev <swift-dev@swift.org> > wrote: > > Running it in a loop on another machine doesn’t trigger it, so I’m thinking > it might be a random variation in how the standard library is built? > >> On Sep 9, 2016, at 2:49 PM, Mark Lacey <mark.la...@apple.com >> <mailto:mark.la...@apple.com>> wrote: >> >> >>> On Sep 9, 2016, at 2:45 PM, Slava Pestov via swift-dev <swift-dev@swift.org >>> <mailto:swift-dev@swift.org>> wrote: >>> >>> Hi all, >>> >>> Is anyone else seeing this? I haven’t seen it in CI, but for me this test >>> fails at random, very rarely too — looks like something is >>> non-deterministic in the optimizer? >> >> Yes, I hit this a couple days ago and attempted to reproduce and couldn’t. >> >> Mark >> >>> >>> /Users/slava/new/swift/test/SILGen/objc_nonnull_lie_hack.swift:30:9: error: >>> expected string not found in input >>> // OPT: [[METHOD:%[0-9]+]] = class_method [volatile] [[METATYPE]] : $@thick >>> Gizmo.Type, #Gizmo.nonNilGizmo!1.foreign : (Gizmo.Type) -> () -> Gizmo , >>> $@convention(objc_method) (@objc_metatype Gizmo.Type) -> @autoreleased Gizmo >>> ^ >>> <stdin>:329:34: note: scanning from here >>> %0 = metatype $@thick Gizmo.Type, loc >>> "SOURCE_DIR/test/SILGen/objc_nonnull_lie_hack.swift":36:21, scope 54 // >>> user: %1 >>> ^ >>> <stdin>:329:34: note: with variable "METATYPE" equal to "%0" >>> %0 = metatype $@thick Gizmo.Type, loc >>> "SOURCE_DIR/test/SILGen/objc_nonnull_lie_hack.swift":36:21, scope 54 // >>> user: %1 >>> ^ >>> <stdin>:330:2: note: possible intended match here >>> %1 = class_method [volatile] %0 : $@thick Gizmo.Type, >>> #Gizmo.nonNilGizmo!1.foreign : (Gizmo.Type) -> () -> Gizmo! , >>> $@convention(objc_method) (@objc_metatype Gizmo.Type) -> @autoreleased >>> Optional<Gizmo>, loc >>> "SOURCE_DIR/test/SILGen/objc_nonnull_lie_hack.swift":36:27, scope 54 // >>> user: %3 >>> ^ >>> /Users/slava/new/swift/test/SILGen/objc_nonnull_lie_hack.swift:44:9: error: >>> expected string not found in input >>> // OPT: [[METHOD:%[0-9]+]] = class_method [volatile] [[OBJ:%[0-9]+]] : >>> $Gizmo, #Gizmo.nonNilGizmo!1.foreign : (Gizmo) -> () -> Gizmo , >>> $@convention(objc_method) (Gizmo) -> @autoreleased Gizmo >>> ^ >>> <stdin>:1625:67: note: scanning from here >>> sil hidden >>> @_TTSf4g___TF21objc_nonnull_lie_hack18callInstanceMethodFT5gizmoCSo5Gizmo_GSqS0__ >>> : $@convention(thin) (@guaranteed Gizmo) -> @owned Optional<Gizmo> { >>> ^ >>> /Users/slava/new/swift/test/SILGen/objc_nonnull_lie_hack.swift:58:9: error: >>> expected string not found in input >>> // OPT: [[GETTER:%[0-9]+]] = class_method [volatile] [[OBJ:%[0-9]+]] : >>> $Gizmo, #Gizmo.nonNilGizmoProperty!getter.1.foreign : (Gizmo) -> () -> >>> Gizmo , $@convention(objc_method) (Gizmo) -> @autoreleased Gizmo >>> ^ >>> <stdin>:1842:88: note: scanning from here >>> sil hidden >>> @_TTSf4g___TF21objc_nonnull_lie_hack12loadPropertyFT5gizmoCSo5Gizmo_GSqS0__ >>> : $@convention(thin) (@guaranteed Gizmo) -> @owned Optional<Gizmo> { >>> >>> ^ >>> /Users/slava/new/swift/test/SILGen/objc_nonnull_lie_hack.swift:71:9: error: >>> expected string not found in input >>> // OPT: [[GETTER:%[0-9]+]] = class_method [volatile] [[OBJ:%[0-9]+]] : >>> $Gizmo, #Gizmo.unownedNonNilGizmoProperty!getter.1.foreign : (Gizmo) -> () >>> -> Gizmo , $@convention(objc_method) (Gizmo) -> @autoreleased Gizmo >>> ^ >>> <stdin>:2059:95: note: scanning from here >>> sil hidden >>> @_TTSf4g___TF21objc_nonnull_lie_hack19loadUnownedPropertyFT5gizmoCSo5Gizmo_GSqS0__ >>> : $@convention(thin) (@guaranteed Gizmo) -> @owned Optional<Gizmo> { >>> >>> ^ >>> >>> _______________________________________________ >>> swift-dev mailing list >>> swift-dev@swift.org <mailto:swift-dev@swift.org> >>> https://lists.swift.org/mailman/listinfo/swift-dev >>> <https://lists.swift.org/mailman/listinfo/swift-dev> >> > > _______________________________________________ > swift-dev mailing list > swift-dev@swift.org > https://lists.swift.org/mailman/listinfo/swift-dev
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