/* Generated automatically by the program `genattr' from the machine description file `md'. */ #ifndef GCC_INSN_ATTR_H #define GCC_INSN_ATTR_H #define HAVE_ATTR_alternative #define get_attr_alternative(insn) which_alternative #define HAVE_ATTR_cc enum attr_cc {CC_CLOBBER, CC_UNCHANGED, CC_SET, CC_CHANGE0, CC_MATH, CC_MOVE}; extern enum attr_cc get_attr_cc PARAMS ((rtx)); #define HAVE_ATTR_type enum attr_type {TYPE_DEF, TYPE_USE, TYPE_DEFUSE, TYPE_ETC}; extern enum attr_type get_attr_type PARAMS ((rtx)); #define DFA_PIPELINE_INTERFACE 1 #define INSN_SCHEDULING extern int result_ready_cost PARAMS ((rtx)); extern int function_units_used PARAMS ((rtx)); extern const struct function_unit_desc { const char *const name; const int bitmask; const int multiplicity; const int simultaneity; const int default_cost; const int max_issue_delay; int (*const ready_cost_function) PARAMS ((rtx)); int (*const conflict_cost_function) PARAMS ((rtx, rtx)); const int max_blockage; unsigned int (*const blockage_range_function) PARAMS ((rtx)); int (*const blockage_function) PARAMS ((rtx, rtx)); } function_units[]; #define FUNCTION_UNITS_SIZE 0 #define MIN_MULTIPLICITY 100000 #define MAX_MULTIPLICITY -1 #define MIN_SIMULTANEITY 100000 #define MAX_SIMULTANEITY -1 #define MIN_READY_COST 100000 #define MAX_READY_COST -1 #define MIN_ISSUE_DELAY 100000 #define MAX_ISSUE_DELAY -1 #define MIN_BLOCKAGE 100000 #define MAX_BLOCKAGE -1 #define BLOCKAGE_BITS 1 #define INSN_QUEUE_SIZE 1 /* DFA based pipeline interface. */ #ifndef AUTOMATON_STATE_ALTS #define AUTOMATON_STATE_ALTS 0 #endif #ifndef CPU_UNITS_QUERY #define CPU_UNITS_QUERY 0 #endif extern int max_dfa_issue_rate; /* The following macro value is calculated from the automaton based pipeline description and is equal to maximal number of all insns described in constructions `define_insn_reservation' which can be issued on the same processor cycle. */ #define MAX_DFA_ISSUE_RATE max_dfa_issue_rate /* Insn latency time defined in define_insn_reservation. */ extern int insn_default_latency PARAMS ((rtx)); /* Return nonzero if there is a bypass for given insn which is a data producer. */ extern int bypass_p PARAMS ((rtx)); /* Insn latency time on data consumed by the 2nd insn. Use the function if bypass_p returns nonzero for the 1st insn. */ extern int insn_latency PARAMS ((rtx, rtx)); /* The following function returns number of alternative reservations of given insn. It may be used for better insns scheduling heuristics. */ extern int insn_alts PARAMS ((rtx)); /* Maximal possible number of insns waiting results being produced by insns whose execution is not finished. */ extern int max_insn_queue_index; /* Pointer to data describing current state of DFA. */ typedef void *state_t; /* Size of the data in bytes. */ extern int state_size PARAMS ((void)); /* Initiate given DFA state, i.e. Set up the state as all functional units were not reserved. */ extern void state_reset PARAMS ((state_t)); /* The following function returns negative value if given insn can be issued in processor state described by given DFA state. In this case, the DFA state is changed to reflect the current and future reservations by given insn. Otherwise the function returns minimal time delay to issue the insn. This delay may be zero for superscalar or VLIW processors. If the second parameter is NULL the function changes given DFA state as new processor cycle started. */ extern int state_transition PARAMS ((state_t, rtx)); #if AUTOMATON_STATE_ALTS /* The following function returns number of possible alternative reservations of given insn in given DFA state. It may be used for better insns scheduling heuristics. By default the function is defined if macro AUTOMATON_STATE_ALTS is defined because its implementation may require much memory. */ extern int state_alts PARAMS ((state_t, rtx)); #endif extern int min_issue_delay PARAMS ((state_t, rtx)); /* The following function returns nonzero if no one insn can be issued in current DFA state. */ extern int state_dead_lock_p PARAMS ((state_t)); /* The function returns minimal delay of issue of the 2nd insn after issuing the 1st insn in given DFA state. The 1st insn should be issued in given state (i.e. state_transition should return negative value for the insn and the state). Data dependencies between the insns are ignored by the function. */ extern int min_insn_conflict_delay PARAMS ((state_t, rtx, rtx)); /* The following function outputs reservations for given insn as they are described in the corresponding define_insn_reservation. */ extern void print_reservation PARAMS ((FILE *, rtx)); #if CPU_UNITS_QUERY /* The following function returns code of functional unit with given name (see define_cpu_unit). */ extern int get_cpu_unit_code PARAMS ((const char *)); /* The following function returns nonzero if functional unit with given code is currently reserved in given DFA state. */ extern int cpu_unit_reservation_p PARAMS ((state_t, int)); #endif /* Initiate and finish work with DFA. They should be called as the first and the last interface functions. */ extern void dfa_start PARAMS ((void)); extern void dfa_finish PARAMS ((void)); #define ATTR_FLAG_forward 0x1 #define ATTR_FLAG_backward 0x2 #define ATTR_FLAG_likely 0x4 #define ATTR_FLAG_very_likely 0x8 #define ATTR_FLAG_unlikely 0x10 #define ATTR_FLAG_very_unlikely 0x20 #endif /* GCC_INSN_ATTR_H */