Added Pass::createPass(ID) to handle pass configuration by ID

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150092 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/Passes.cpp b/lib/CodeGen/Passes.cpp
index eb56734..2877cf1 100644
--- a/lib/CodeGen/Passes.cpp
+++ b/lib/CodeGen/Passes.cpp
@@ -103,8 +103,12 @@
   llvm_unreachable("TargetPassConfig should not be constructed on-the-fly");
 }
 
-void TargetPassConfig::addCommonPass(char &ID) {
-  // FIXME: about to be implemented.
+void TargetPassConfig::addPass(char &ID) {
+  // FIXME: check user overrides
+  Pass *P = Pass::createPass(ID);
+  if (!P)
+    llvm_unreachable("Pass ID not registered");
+  PM.add(P);
 }
 
 void TargetPassConfig::printNoVerify(const char *Banner) const {