[5.1 08-28] IRGen: Save the current generic signature before mangling an opaque type decl #27023
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… an opaque type decl
It comes with its own generic signature.
Explanation: We crash generating the mangling for an opaque type decl.
Scope of Issue: Affects code that uses opaque result types.
The compiler will crash.
Risk: Low. We cache and restore a generic signature before mangling opaque type
decls which will introduce their own generic signature.
Review: Joe Groff
Testing: Swift regression test added.
rdar://54824119
|
@swift-ci Please test |
airspeedswift
approved these changes
Sep 9, 2019
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It comes with its own generic signature.
Explanation: We crash generating the mangling for an opaque type decl.
Scope of Issue: Affects code that uses opaque result types.
The compiler will crash.
Risk: Low. We cache and restore a generic signature before mangling opaque type
decls which will introduce their own generic signature.
Review: Joe Groff
Testing: Swift regression test added.
rdar://54824119