Lower stackmap intrinsics directly to their target opcode in the DAG builder.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193769 91177308-0d34-0410-b5e6-96231b3b80d8

utils/TableGen/CodeGenTarget.cpp

@@ -321,6 +321,8 @@ void CodeGenTarget::ComputeInstrsByEnum() const {
     "BUNDLE",
     "LIFETIME_START",
     "LIFETIME_END",
+    "STACKMAP",
+    "PATCHPOINT",
     0
   };
   const DenseMap<const Record*, CodeGenInstruction*> &Insts = getInstructions();