fix: dodge Swift 6.3 SIL inliner crash on Onramp deinit (#334)

raulriera · web-flow · commit f2f1801d15f2 · 2026-05-28T15:57:49.000-04:00
TestFlight archive (Release -O) was crashing inside the SIL optimizer's EarlyPerfInliner pass — a Swift 6.3 compiler bug triggered when checking layout-constraint compatibility through the generic parameters of the @mainactor OnrampVerificationViewModel's isolated deinit. Marking the deinit @_optimize(none) skips the optimizer for just that function; runtime behavior is unchanged.
diff --git a/Flipcash/Core/Screens/Onramp/OnrampVerificationViewModel.swift b/Flipcash/Core/Screens/Onramp/OnrampVerificationViewModel.swift
@@ -87,6 +87,11 @@ final class OnrampVerificationViewModel<P: PhoneVerifying, E: EmailVerifying>: V
         }
     }
 
+    // `@_optimize(none)` skips the SIL optimizer for this deinit. Without it,
+    // Swift 6.3's `EarlyPerfInliner` crashes when checking layout-constraint
+    // compatibility through the generic parameters of this class on `-O`
+    // archive builds.
+    @_optimize(none)
     isolated deinit {
         let c = continuation
         continuation = nil

Original file line number	Diff line number	Diff line change
`@@ -87,6 +87,11 @@ final class OnrampVerificationViewModel<P: PhoneVerifying, E: EmailVerifying>: V`
`87`	`87`	`}`
`88`	`88`	`}`
`89`	`89`
	`90`	+ // `@_optimize(none)` skips the SIL optimizer for this deinit. Without it,
	`91`	+ // Swift 6.3's `EarlyPerfInliner` crashes when checking layout-constraint
	`92`	+ // compatibility through the generic parameters of this class on `-O`
	`93`	`+ // archive builds.`
	`94`	`+ @_optimize(none)`
`90`	`95`	`isolated deinit {`
`91`	`96`	`let c = continuation`
`92`	`97`	`continuation = nil`