diff options
Diffstat (limited to 'gcc/target.h')
| -rw-r--r-- | gcc/target.h | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/gcc/target.h b/gcc/target.h index 2a304a02dbe..cdcaa18acd9 100644 --- a/gcc/target.h +++ b/gcc/target.h @@ -213,12 +213,6 @@ struct gcc_target by two parameter values (head and tail correspondingly). */ void (* dependencies_evaluation_hook) (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. */ - int (* use_dfa_pipeline_interface) (void); - /* The values of all the following members are used only for the - DFA based scheduler: */ /* The values of the following four members are pointers to functions used to simplify the automaton descriptions. dfa_pre_cycle_insn and dfa_post_cycle_insn give functions @@ -234,6 +228,7 @@ struct gcc_target rtx (* dfa_pre_cycle_insn) (void); void (* init_dfa_post_cycle_insn) (void); rtx (* dfa_post_cycle_insn) (void); + /* The following member value is a pointer to a function returning value which defines how many insns in queue `ready' will we try for multi-pass scheduling. If the member value is nonzero and the @@ -242,12 +237,14 @@ 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) (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) (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 @@ -261,6 +258,7 @@ struct gcc_target the previous insn has been issued and the current processor cycle. */ int (* dfa_new_cycle) (FILE *, int, rtx, int, int, int *); + /* The following member value is a pointer to a function called by the insn scheduler. It should return true if there exists a dependence which is considered costly by the target, between |