Update comment.

llvm-svn: 130582

llvm/lib/CodeGen/Passes.cpp

@@ -55,8 +55,8 @@ FunctionPass *llvm::createRegisterAllocator(CodeGenOpt::Level OptLevel) {
     RegisterRegAlloc::setDefault(RegAlloc);
   }
 
-  // This forces linking of the greedy register allocator, so -regalloc=greedy
-  // works in clang.
+  // This forces linking of the linear scan register allocator,
+  // so -regalloc=linearscan still works in clang.
   if (Ctor == createLinearScanRegisterAllocator)
     return createLinearScanRegisterAllocator();