574     HEnvironment* last_environment = pred->last_environment();  in DoBasicBlock()  local
575     DCHECK(last_environment != NULL);  in DoBasicBlock()
583         last_environment = last_environment->Copy();  in DoBasicBlock()
586     block->UpdateEnvironment(last_environment);  in DoBasicBlock()
593     HEnvironment* last_environment = pred->last_environment();  in DoBasicBlock()  local
597         last_environment->SetValueAt(phi->merged_index(), phi);  in DoBasicBlock()
601       if (block->deleted_phis()->at(i) < last_environment->length()) {  in DoBasicBlock()
602         last_environment->SetValueAt(block->deleted_phis()->at(i),  in DoBasicBlock()
606     block->UpdateEnvironment(last_environment);  in DoBasicBlock()
722   HEnvironment* hydrogen_env = current_block_->last_environment();  in AssignEnvironment()
1028   instr->ReplayEnvironment(current_block_->last_environment());  in DoCapturedObject()
1398   HEnvironment* outer = current_block_->last_environment();  in DoEnterInlined()
1518   HEnvironment* env = current_block_->last_environment();  in DoLeaveInlined()
1527       current_block_->last_environment()->DiscardInlined(false);  in DoLeaveInlined()
1855   current_block_->last_environment()->set_ast_id(instr->ast_id());  in DoOsrEntry()
2130   instr->ReplayEnvironment(current_block_->last_environment());  in DoSimulate()