Restructure to support recursive invocation of the CFG builder. Add...

src/arm/cfg-arm.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 38 matching lines @@
 }
 
 
 void EntryNode::Compile(MacroAssembler* masm) {
   ASSERT(!is_marked());
   is_marked_ = true;
   {
     Comment cmnt(masm, "[ EntryNode");
     __ stm(db_w, sp, r1.bit() | cp.bit() | fp.bit() | lr.bit());
     __ add(fp, sp, Operand(2 * kPointerSize));
-    if (local_count_ > 0) {
+    int count = CfgGlobals::current()->fun()->scope()->num_stack_slots();
+    if (count > 0) {
       __ mov(ip, Operand(Factory::undefined_value()));
-      for (int i = 0; i < local_count_; i++) {
+      for (int i = 0; i < count; i++) {
         __ push(ip);
       }
     }
     if (FLAG_trace) {
       __ CallRuntime(Runtime::kTraceEnter, 0);
     }
     if (FLAG_check_stack) {
       StackCheckStub stub;
       __ CallStub(&stub);
     }
   }
   successor_->Compile(masm);
 }
 
 
 void ExitNode::Compile(MacroAssembler* masm) {
   ASSERT(!is_marked());
   is_marked_ = true;
   Comment cmnt(masm, "[ ExitNode");
   if (FLAG_trace) {
     __ push(r0);
     __ CallRuntime(Runtime::kTraceExit, 1);
   }
   __ mov(sp, fp);
   __ ldm(ia_w, sp, fp.bit() | lr.bit());
-  __ add(sp, sp, Operand((parameter_count_ + 1) * kPointerSize));
+  int count = CfgGlobals::current()->fun()->scope()->num_parameters();
+  __ add(sp, sp, Operand((count + 1) * kPointerSize));
   __ Jump(lr);
 }
 
 
 void ReturnInstr::Compile(MacroAssembler* masm) {
   Comment cmnt(masm, "[ ReturnInstr");
   value_->ToRegister(masm, r0);
 }
 
 
 void Constant::ToRegister(MacroAssembler* masm, Register reg) {
   __ mov(reg, Operand(handle_));
 }
 
+
+void SlotLocation::ToRegister(MacroAssembler* masm, Register reg) {
+  switch (type_) {
+    case Slot::PARAMETER: {
+      int count = CfgGlobals::current()->fun()->scope()->num_parameters();
+      __ ldr(reg, MemOperand(fp, (1 + count - index_) * kPointerSize));
+      break;
+    }
+    case Slot::LOCAL: {
+      const int kOffset = JavaScriptFrameConstants::kLocal0Offset;
+      __ ldr(reg, MemOperand(fp, kOffset - index_ * kPointerSize));
+      break;
+    }
+    default:
+      UNREACHABLE();
+  }
+}
+
 #undef __
 
 } }  // namespace v8::internal