Introducing plugable register allocators and instruction schedulers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29434 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/RegAllocSimple.cpp b/lib/CodeGen/RegAllocSimple.cpp
index c6faead..bd20cd0 100644
--- a/lib/CodeGen/RegAllocSimple.cpp
+++ b/lib/CodeGen/RegAllocSimple.cpp
@@ -20,6 +20,7 @@
 #include "llvm/CodeGen/MachineInstr.h"
 #include "llvm/CodeGen/SSARegMap.h"
 #include "llvm/CodeGen/MachineFrameInfo.h"
+#include "llvm/CodeGen/MachinePassRegistry.h"
 #include "llvm/Target/TargetInstrInfo.h"
 #include "llvm/Target/TargetMachine.h"
 #include "llvm/Support/Debug.h"
@@ -33,6 +34,10 @@
   static Statistic<> NumStores("ra-simple", "Number of stores added");
   static Statistic<> NumLoads ("ra-simple", "Number of loads added");
 
+  static RegisterRegAlloc
+    simpleRegAlloc("simple", "  simple register allocator",
+                   createSimpleRegisterAllocator);
+
   class VISIBILITY_HIDDEN RegAllocSimple : public MachineFunctionPass {
     MachineFunction *MF;
     const TargetMachine *TM;