Use TargetMachine adjustPassManager hook

Differential Revision: https://reviews.llvm.org/D28340

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@293190 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/BackendUtil.cpp

@@ -334,13 +334,8 @@ void EmitAssemblyHelper::CreatePasses(legacy::PassManager &MPM,
 
   MPM.add(new TargetLibraryInfoWrapperPass(*TLII));
 
-  // Add target-specific passes that need to run as early as possible.
   if (TM)
-    PMBuilder.addExtension(
-        PassManagerBuilder::EP_EarlyAsPossible,
-        [&](const PassManagerBuilder &, legacy::PassManagerBase &PM) {
-          TM->addEarlyAsPossiblePasses(PM);
-        });
+    TM->adjustPassManager(PMBuilder);
 
   PMBuilder.addExtension(PassManagerBuilder::EP_EarlyAsPossible,
                          addAddDiscriminatorsPass);