Simplify pushing function argument for context allocation.

src/full-codegen.cc

 // Copyright 2011 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 801 matching lines @@
   Comment cmnt(masm_, "[ Block");
   NestedBlock nested_block(this, stmt);
   SetStatementPosition(stmt);
 
   Scope* saved_scope = scope();
   // Push a block context when entering a block with block scoped variables.
   if (stmt->block_scope() != NULL) {
     { Comment cmnt(masm_, "[ Extend block context");
       scope_ = stmt->block_scope();
       __ Push(scope_->GetSerializedScopeInfo());
-      PushFunctionArgumentForContextAllocation();
+      PushFunctionArgumentForContextAllocation(result_register());
       __ CallRuntime(Runtime::kPushBlockContext, 2);
       StoreToFrameField(StandardFrameConstants::kContextOffset,
                         context_register());
     }
     { Comment cmnt(masm_, "[ Declarations");
       VisitDeclarations(scope_->declarations());
     }
   }
   PrepareForBailoutForId(stmt->EntryId(), NO_REGISTERS);
   VisitStatements(stmt->statements());
@@ skipping 125 matching lines @@
 
   EmitReturnSequence();
 }
 
 
 void FullCodeGenerator::VisitWithStatement(WithStatement* stmt) {
   Comment cmnt(masm_, "[ WithStatement");
   SetStatementPosition(stmt);
 
   VisitForStackValue(stmt->expression());
-  PushFunctionArgumentForContextAllocation();
+  PushFunctionArgumentForContextAllocation(result_register());
   __ CallRuntime(Runtime::kPushWithContext, 2);
   decrement_stack_height();
   StoreToFrameField(StandardFrameConstants::kContextOffset, context_register());
 
   { WithOrCatch body(this);
     Visit(stmt->statement());
   }
 
   // Pop context.
   LoadContextField(context_register(), Context::PREVIOUS_INDEX);
@@ skipping 130 matching lines @@
   // that scope again afterwards.
 
   Label try_handler_setup, done;
   __ Call(&try_handler_setup);
   // Try handler code, exception in result register.
 
   // Extend the context before executing the catch block.
   { Comment cmnt(masm_, "[ Extend catch context");
     __ Push(stmt->variable()->name());
     __ push(result_register());
-    PushFunctionArgumentForContextAllocation();
+    PushFunctionArgumentForContextAllocation(result_register());
     __ CallRuntime(Runtime::kPushCatchContext, 3);
     StoreToFrameField(StandardFrameConstants::kContextOffset,
                       context_register());
   }
 
   Scope* saved_scope = scope();
   scope_ = stmt->scope();
   ASSERT(scope_->declarations()->is_empty());
   { WithOrCatch body(this);
     Visit(stmt->catch_block());
@@ skipping 205 matching lines @@
   }
 
   return false;
 }
 
 
 #undef __
 
 
 } }  // namespace v8::internal