diff options
Diffstat (limited to 'gcc/target.h')
| -rw-r--r-- | gcc/target.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/gcc/target.h b/gcc/target.h index f68cfb13632..3f65a26f07d 100644 --- a/gcc/target.h +++ b/gcc/target.h @@ -153,6 +153,11 @@ struct gcc_target int (* reorder) PARAMS ((FILE *, int, rtx *, int *, int)); int (* reorder2) PARAMS ((FILE *, int, rtx *, int *, int)); + /* The following member value is a pointer to a function called + after evaluation forward dependencies of insns in chain given + by two parameter values (head and tail correspondingly). */ + void (* dependencies_evaluation_hook) PARAMS ((rtx, rtx)); + /* The following member value is a pointer to a function returning nonzero if we should use DFA based scheduling. The default is to use the old pipeline scheduler. */ @@ -182,6 +187,25 @@ struct gcc_target try to choose ready insn which permits to start maximum number of insns on the same cycle. */ int (* first_cycle_multipass_dfa_lookahead) PARAMS ((void)); + /* The following member value is pointer to a function controlling + what insns from the ready insn queue will be considered for the + multipass insn scheduling. If the hook returns zero for insn + passed as the parameter, the insn will be not chosen to be + issued. */ + int (* first_cycle_multipass_dfa_lookahead_guard) PARAMS ((rtx)); + /* The following member value is pointer to a function called by + the insn scheduler before issuing insn passed as the third + parameter on given cycle. If the hook returns nonzero, the + insn is not issued on given processors cycle. Instead of that, + the processor cycle is advanced. If the value passed through + the last parameter is zero, the insn ready queue is not sorted + on the new cycle start as usually. The first parameter passes + file for debugging output. The second one passes the scheduler + verbose level of the debugging output. The forth and the fifth + parameter values are correspondingly processor cycle on which + the previous insn has been issued and the current processor + cycle. */ + int (* dfa_new_cycle) PARAMS ((FILE *, int, rtx, int, int, int *)); /* The values of the following members are pointers to functions used to improve the first cycle multipass scheduling by inserting nop insns. dfa_scheduler_bubble gives a function |