Initial port of top-level code generator to ARM. For the constant...

src/ia32/fast-codegen-ia32.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
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 // Generate code for a JS function.  On entry to the function the receiver
 // and arguments have been pushed on the stack left to right, with the
 // return address on top of them.  The actual argument count matches the
 // formal parameter count expected by the function.
 //
 // The live registers are:
 //   o edi: the JS function object being called (ie, ourselves)
 //   o esi: our context
 //   o ebp: our caller's frame pointer
+//   o esp: stack pointer (pointing to return address)
 //
 // The function builds a JS frame.  Please see JavaScriptFrameConstants in
 // frames-ia32.h for its layout.
 void FastCodeGenerator::Generate(FunctionLiteral* fun) {
   function_ = fun;
 
   __ push(ebp);  // Caller's frame pointer.
   __ mov(ebp, esp);
   __ push(esi);  // Callee's context.
   __ push(edi);  // Callee's JS Function.
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   Visit(expr->value());
 
   Variable* var = expr->target()->AsVariableProxy()->AsVariable();
   ASSERT(var != NULL && var->slot() != NULL);
   __ mov(eax, Operand(esp, 0));
   __ mov(Operand(ebp, SlotOffset(var->slot())), eax);
 }
 
 
 } }  // namespace v8::internal