InsertParserCounterStall Struct Reference

Inheritance diagram for InsertParserCounterStall:

Public Member Functions
bool	has_counter_load (const IR::BFN::ParserState *state)
bool	has_counter_select (const IR::BFN::ParserState *state)
void	insert_stall_state (IR::BFN::Transition *t)
IR::BFN::Transition *	postorder (IR::BFN::Transition *t) override

Public Attributes
std::map< cstring, int >	stall_counts

Detailed Description

The counter zero and negative flags are always zero in the cycle immediately following a load via the Counter Initialization RAM. Therefore the compiler needs to insert a stall state if is_zero/is_negative is used in the cycle immediately following the load.