AutodiffClosureSpecialization: workaround a problem with OSSA.

Disable the closure specializer optimization for closures in OSSA until the underlying problem is fixed. swiftlang#78847 Part of rdar://140229560
eeckstein · Jan 23, 2025 · 09f6f4f · 09f6f4f
1 parent 9796d1b
commit 09f6f4f
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/SwiftCompilerSources/Sources/Optimizer/FunctionPasses/ClosureSpecialization.swift b/SwiftCompilerSources/Sources/Optimizer/FunctionPasses/ClosureSpecialization.swift
@@ -503,6 +503,12 @@ private func handleApplies(for rootClosure: SingleValueInstruction, callSiteMap:
       continue
     }
 
+    // Workaround for a problem with OSSA: https://github.com/swiftlang/swift/issues/78847
+    // TODO: remove this if-statement once the underlying problem is fixed.
+    if callee.hasOwnership {
+      continue
+    }
+
     if callee.isDefinedExternally {
       continue
     }