-registerPBQPRepAlloc("pbqp", "PBQP register allocator.",
- llvm::createPBQPRegisterAllocator);
+registerPBQPRepAlloc("pbqp", "PBQP register allocator",
+ llvm::createPBQPRegisterAllocator);
+
+static cl::opt<bool>
+pbqpCoalescing("pbqp-coalescing",
+ cl::desc("Attempt coalescing during PBQP register allocation."),
+ cl::init(false), cl::Hidden);