Fix issue 268 by explicitly calling Unuse (to deallocate all contained...

src/codegen-arm.cc

 // Copyright 2006-2008 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 266 matching lines @@
   }
 
   // Code generation state must be reset.
   ASSERT(!has_cc());
   ASSERT(state_ == NULL);
   ASSERT(!function_return_is_shadowed_);
   function_return_.Unuse();
   DeleteFrame();
 
   // Process any deferred code using the register allocator.
-  ProcessDeferred();
+  if (HasStackOverflow()) {
+    ClearDeferred();
+  } else {
+    ProcessDeferred();
+  }
 
   allocator_ = NULL;
   scope_ = NULL;
 }
 
 
 MemOperand CodeGenerator::SlotOperand(Slot* slot, Register tmp) {
   // Currently, this assertion will fail if we try to assign to
   // a constant variable that is constant because it is read-only
   // (such as the variable referring to a named function expression).
@@ skipping 828 matching lines @@
   int original_height = frame_->height();
 #endif
   VirtualFrame::SpilledScope spilled_scope(this);
   Comment cmnt(masm_, "[ Block");
   CodeForStatementPosition(node);
   node->break_target()->Initialize(this);
   VisitStatementsAndSpill(node->statements());
   if (node->break_target()->is_linked()) {
     node->break_target()->Bind();
   }
+  node->break_target()->Unuse();
   ASSERT(!has_valid_frame() || frame_->height() == original_height);
 }
 
 
 void CodeGenerator::DeclareGlobals(Handle<FixedArray> pairs) {
   VirtualFrame::SpilledScope spilled_scope(this);
   __ mov(r0, Operand(pairs));
   frame_->EmitPush(r0);
   frame_->EmitPush(cp);
   __ mov(r0, Operand(Smi::FromInt(is_eval() ? 1 : 0)));
@@ skipping 441 matching lines @@
     }
   }
 
   if (fall_through.is_linked()) {
     fall_through.Bind();
   }
 
   if (node->break_target()->is_linked()) {
     node->break_target()->Bind();
   }
+  node->break_target()->Unuse();
   ASSERT(!has_valid_frame() || frame_->height() == original_height);
 }
 
 
 void CodeGenerator::VisitLoopStatement(LoopStatement* node) {
 #ifdef DEBUG
   int original_height = frame_->height();
 #endif
   VirtualFrame::SpilledScope spilled_scope(this);
   Comment cmnt(masm_, "[ LoopStatement");
@@ skipping 167 matching lines @@
           }
         }
       }
       break;
     }
   }
 
   if (node->break_target()->is_linked()) {
     node->break_target()->Bind();
   }
+  node->continue_target()->Unuse();
+  node->break_target()->Unuse();
   ASSERT(!has_valid_frame() || frame_->height() == original_height);
 }
 
 
 void CodeGenerator::VisitForInStatement(ForInStatement* node) {
 #ifdef DEBUG
   int original_height = frame_->height();
 #endif
   ASSERT(!in_spilled_code());
   VirtualFrame::SpilledScope spilled_scope(this);
@@ skipping 170 matching lines @@
   __ add(r0, r0, Operand(Smi::FromInt(1)));
   frame_->EmitPush(r0);
   entry.Jump();
 
   // Cleanup.
   node->break_target()->Bind();
   frame_->Drop(5);
 
   // Exit.
   exit.Bind();
+  node->continue_target()->Unuse();
+  node->break_target()->Unuse();
   ASSERT(frame_->height() == original_height);
 }
 
 
 void CodeGenerator::VisitTryCatch(TryCatch* node) {
 #ifdef DEBUG
   int original_height = frame_->height();
 #endif
   VirtualFrame::SpilledScope spilled_scope(this);
   Comment cmnt(masm_, "[ TryCatch");
@@ skipping 3152 matching lines @@
   __ mov(r2, Operand(0));
   __ GetBuiltinEntry(r3, Builtins::CALL_NON_FUNCTION);
   __ Jump(Handle<Code>(Builtins::builtin(Builtins::ArgumentsAdaptorTrampoline)),
           RelocInfo::CODE_TARGET);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal