Simple register allocation for ARM. Only top of expression...

src/virtual-frame.cc

 // Copyright 2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 19 matching lines @@
 #include "codegen-inl.h"
 #include "register-allocator-inl.h"
 #include "virtual-frame-inl.h"
 
 namespace v8 {
 namespace internal {
 
 // -------------------------------------------------------------------------
 // VirtualFrame implementation.
 
-// If there are any registers referenced only by the frame, spill one.
-Register VirtualFrame::SpillAnyRegister() {
-  // Find the leftmost (ordered by register number) register whose only
-  // reference is in the frame.
-  for (int i = 0; i < RegisterAllocator::kNumRegisters; i++) {
-    if (is_used(i) && cgen()->allocator()->count(i) == 1) {
-      SpillElementAt(register_location(i));
-      ASSERT(!cgen()->allocator()->is_used(i));
-      return RegisterAllocator::ToRegister(i);
-    }
-  }
-  return no_reg;
-}
-
-
 // Specialization of List::ResizeAdd to non-inlined version for FrameElements.
 // The function ResizeAdd becomes a real function, whose implementation is the
 // inlined ResizeAddInternal.
 template <>
 void List<FrameElement,
           FreeStoreAllocationPolicy>::ResizeAdd(const FrameElement& element) {
   ResizeAddInternal(element);
 }
 
 } }  // namespace v8::internal