[rtsan][clang] NFC: Move rtsan init to addSanitizers (#119904)

Author: cjappl

clang/lib/CodeGen/BackendUtil.cpp

@@ -738,6 +738,9 @@ static void addSanitizers(const Triple &TargetTriple,
     if (LangOpts.Sanitize.has(SanitizerKind::NumericalStability))
       MPM.addPass(NumericalStabilitySanitizerPass());
 
+    if (LangOpts.Sanitize.has(SanitizerKind::Realtime))
+      MPM.addPass(RealtimeSanitizerPass());
+
     auto ASanPass = [&](SanitizerMask Mask, bool CompileKernel) {
       if (LangOpts.Sanitize.has(Mask)) {
         bool UseGlobalGC = asanUseGlobalsGC(TargetTriple, CodeGenOpts);
@@ -1023,9 +1026,6 @@ void EmitAssemblyHelper::RunOptimizationPipeline(
             FPM.addPass(BoundsCheckingPass());
           });
 
-    if (LangOpts.Sanitize.has(SanitizerKind::Realtime))
-      MPM.addPass(RealtimeSanitizerPass());
-
     // Don't add sanitizers if we are here from ThinLTO PostLink. That already
     // done on PreLink stage.
     if (!IsThinLTOPostLink) {