Merge pull request #31579 from gribozavr/rm-dead-code

Remove dead code in SILGenProlog.cpp

Author: gribozavr

lib/SILGen/SILGenProlog.cpp

@@ -34,49 +34,6 @@ SILValue SILGenFunction::emitSelfDecl(VarDecl *selfDecl) {
   return selfValue;
 }
 
-namespace {
-
-/// Cleanup that writes back to an inout argument on function exit.
-class CleanupWriteBackToInOut : public Cleanup {
-  VarDecl *var;
-  SILValue inoutAddr;
-
-public:
-  CleanupWriteBackToInOut(VarDecl *var, SILValue inoutAddr)
-    : var(var), inoutAddr(inoutAddr) {}
-
-  void emit(SILGenFunction &SGF, CleanupLocation l,
-            ForUnwind_t forUnwind) override {
-    // Assign from the local variable to the inout address with an
-    // 'autogenerated' copyaddr.
-    l.markAutoGenerated();
-    SGF.B.createCopyAddr(l, SGF.VarLocs[var].value, inoutAddr,
-                         IsNotTake, IsNotInitialization);
-  }
-};
-} // end anonymous namespace
-
-  
-namespace {
-class StrongReleaseCleanup : public Cleanup {
-  SILValue box;
-public:
-  StrongReleaseCleanup(SILValue box) : box(box) {}
-  void emit(SILGenFunction &SGF, CleanupLocation l,
-            ForUnwind_t forUnwind) override {
-    SGF.B.emitDestroyValueOperation(l, box);
-  }
-
-  void dump(SILGenFunction &) const override {
-#ifndef NDEBUG
-    llvm::errs() << "DeallocateValueBuffer\n"
-                 << "State: " << getState() << "box: " << box << "\n";
-#endif
-  }
-};
-} // end anonymous namespace
-
-
 namespace {
 class EmitBBArguments : public CanTypeVisitor<EmitBBArguments,
                                               /*RetTy*/ ManagedValue>