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

src/jump-target-light.cc

 // Copyright 2010 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 59 matching lines @@
 
 
 DeferredCode::DeferredCode()
     : masm_(CodeGeneratorScope::Current()->masm()),
       statement_position_(masm_->current_statement_position()),
       position_(masm_->current_position()) {
   ASSERT(statement_position_ != RelocInfo::kNoPosition);
   ASSERT(position_ != RelocInfo::kNoPosition);
 
   CodeGeneratorScope::Current()->AddDeferred(this);
+
 #ifdef DEBUG
-  comment_ = "";
+  CodeGeneratorScope::Current()->frame()->AssertIsSpilled();
 #endif
-
-  // Copy the register locations from the code generator's frame.
-  // These are the registers that will be spilled on entry to the
-  // deferred code and restored on exit.
-  VirtualFrame* frame = CodeGeneratorScope::Current()->frame();
-  for (int i = 0; i < RegisterAllocator::kNumRegisters; i++) {
-    int loc = frame->register_location(i);
-    if (loc == VirtualFrame::kIllegalIndex) {
-      registers_[i] = kIgnore;
-    } else {
-      // Needs to be restored on exit but not saved on entry.
-      registers_[i] = frame->fp_relative(loc) | kSyncedFlag;
-    }
-  }
 }
 
 } }  // namespace v8::internal