Make TargetPassConfig an ImmutablePass so CodeGenPasses can query options

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149752 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CodeGen.cpp b/lib/CodeGen/CodeGen.cpp
index cbbf7f5..7651e22 100644
--- a/lib/CodeGen/CodeGen.cpp
+++ b/lib/CodeGen/CodeGen.cpp
@@ -49,6 +49,7 @@
   initializeStackProtectorPass(Registry);
   initializeStackSlotColoringPass(Registry);
   initializeStrongPHIEliminationPass(Registry);
+  initializeTargetPassConfigPass(Registry);
   initializeTwoAddressInstructionPassPass(Registry);
   initializeUnreachableBlockElimPass(Registry);
   initializeUnreachableMachineBlockElimPass(Registry);