Add a new optimization pass: Stack Coloring, that merges disjoint static allocations (allocas). Allocas are known to be

disjoint if they are marked by disjoint lifetime markers (@llvm.lifetime.XXX intrinsics).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163299 91177308-0d34-0410-b5e6-96231b3b80d8

utils/TableGen/CodeGenTarget.cpp

@@ -300,6 +300,8 @@ void CodeGenTarget::ComputeInstrsByEnum() const {
     "REG_SEQUENCE",
     "COPY",
     "BUNDLE",
+    "LIFETIME_START",
+    "LIFETIME_END",
     0
   };
   const DenseMap<const Record*, CodeGenInstruction*> &Insts = getInstructions();