Merge pull request #25473 from aschwaighofer/back_deploy_dynamic_replacement

stdlib: Add backward deployment versions for the dynamic-replacement runtime functions

lib/Frontend/CompilerInvocation.cpp

@@ -1193,6 +1193,11 @@ static bool ParseIRGenArgs(IRGenOptions &Opts, ArgList &Args,
                                                     runtimeCompatibilityVersion;
   }
 
+  if (!Args.hasArg(options::
+          OPT_disable_autolinking_runtime_compatibility_dynamic_replacements)) {
+    Opts.AutolinkRuntimeCompatibilityDynamicReplacementLibraryVersion =
+        getSwiftRuntimeCompatibilityVersionForTarget(Triple);
+  }
   return false;
 }