Merge pull request swiftlang#32505 from gottesmm/pr-12b4fd6015e37d9a95ea6a81da117e6678369d02

[ownership] Split ownership lowering in the pass pipeline for non-transparent stdlib vs non-stdlib functions.

Author: gottesmm

lib/SILOptimizer/PassManager/PassPipeline.cpp

@@ -436,7 +436,17 @@ static void addPerfEarlyModulePassPipeline(SILPassPipelinePlan &P) {
   // not blocked by any other passes' optimizations, so do it early.
   P.addDifferentiabilityWitnessDevirtualizer();
 
-  // Strip ownership from non-transparent functions.
+  // Strip ownership from non-transparent functions when we are not compiling
+  // the stdlib module. When compiling the stdlib, we eliminate ownership on
+  // these functions later with a nromal call to
+  // P.addNonTransparentFunctionOwnershipModelEliminator().
+  //
+  // This is done so we can push ownership through the pass pipeline first for
+  // the stdlib and then everything else.
+  P.addNonStdlibNonTransparentFunctionOwnershipModelEliminator();
+
+  // We earlier eliminated ownership if we are not compiling the stdlib. Now
+  // handle the stdlib functions.
   P.addNonTransparentFunctionOwnershipModelEliminator();
 
   // Start by linking in referenced functions from other modules.