[SR-2971] Whole Module Optimization: Convenience initializer not calling subclass initializer

[swift-ci]

Previous ID	SR-2971
Radar	rdar://problem/28882879
Original Reporter	fumoboy007 (JIRA User)
Type	Bug
Status	Resolved
Resolution	Done

Attachment: Download

Environment

Swift 3.0.1, Xcode 8.1 (8B62), macOS Sierra

Additional Detail from JIRA

Votes	0
Component/s	Compiler
Labels	Bug, Miscompile, OptimizedOnly
Assignee	@eeckstein
Priority	Medium

md5: ecff97bffce8a90c3aeb23958a7a64d5

Issue Description:

See attached sample project.

There is an open class in the embedded framework called MyView. It has a convenience initializer. There is a subclass of MyView called OverrideView in the main app. OverrideView overrides the designated/required initializers of MyView.

When Whole Module Optimization is turned off for the framework:

• Invoking the convenience initializer calls the appropriate initializer in OverrideView. ✅

When Whole Module Optimization is turned on for the framework:

• Invoking the convenience initializer calls the initializer of MyView. ❌

[eeckstein]

fixed in 35916a2

[belkadan]

This was fixed, although the fix didn't make it into Swift 3.0.1 or 3.0.2, which only had limited changes from 3.0.

[swift-ci]

Comment by Darren Mo (JIRA)

Oh, OK. Thanks!