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

lib/CodeGen/CodeGen.cpp

@@ -56,6 +56,7 @@ void llvm::initializeCodeGen(PassRegistry &Registry) {
   initializeRegisterCoalescerPass(Registry);
   initializeSlotIndexesPass(Registry);
   initializeStackProtectorPass(Registry);
+  initializeStackColoringPass(Registry);
   initializeStackSlotColoringPass(Registry);
   initializeStrongPHIEliminationPass(Registry);
   initializeTailDuplicatePassPass(Registry);