Software Foundation, 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA. */
+#ifndef GCC_VALUE_PROF_H
+#define GCC_VALUE_PROF_H
+
/* Supported histogram types. */
enum hist_type
{
difference between two evaluations of a value. */
};
+#define COUNTER_FOR_HIST_TYPE(TYPE) ((int) (TYPE) + GCOV_FIRST_VALUE_COUNTER)
+#define HIST_TYPE_FOR_COUNTER(COUNTER) \
+ ((enum hist_type) ((COUNTER) - GCOV_FIRST_VALUE_COUNTER))
+
/* The value to measure. */
+/* The void *'s are either rtx or tree, depending on which IR is in use. */
struct histogram_value
{
- rtx value; /* The value to profile. */
+ void * value; /* The value to profile. */
enum machine_mode mode; /* And its mode. */
- rtx seq; /* Insns requiered to count the profiled value. */
- rtx insn; /* Insn before that to measure. */
+ void * seq; /* Insns required to count the profiled value. */
+ void * insn; /* Insn before that to measure. */
enum hist_type type; /* Type of information to measure. */
- unsigned n_counters; /* Number of requiered counters. */
+ unsigned n_counters; /* Number of required counters. */
union
{
struct
} hdata; /* Profiled information specific data. */
};
+/* Hooks registration. */
+extern void rtl_register_value_prof_hooks (void);
+extern void tree_register_value_prof_hooks (void);
+
+/* IR-independent entry points. */
extern void find_values_to_profile (unsigned *, struct histogram_value **);
extern void free_profiled_values (unsigned, struct histogram_value *);
+extern bool value_profile_transformations (void);
+\f
+/* External declarations for edge-based profiling. */
+struct profile_hooks {
+ /* Insert code to increment an edge count. */
+ void (*gen_edge_profiler) (int, edge);
+
+ /* Insert code to increment the interval histogram counter. */
+ void (*gen_interval_profiler) (struct histogram_value *, unsigned, unsigned);
+
+ /* Insert code to increment the power of two histogram counter. */
+ void (*gen_pow2_profiler) (struct histogram_value *, unsigned, unsigned);
+
+ /* Insert code to find the most common value. */
+ void (*gen_one_value_profiler) (struct histogram_value *, unsigned, unsigned);
+
+ /* Insert code to find the most common value of a difference between two
+ evaluations of an expression. */
+ void (*gen_const_delta_profiler) (struct histogram_value *, unsigned,
+ unsigned);
+ FILE * (*profile_dump_file) (void);
+};
+
+/* In profile.c. */
+extern void init_branch_prob (void);
+extern void branch_prob (void);
+extern void end_branch_prob (void);
+extern void tree_register_profile_hooks (void);
+extern void rtl_register_profile_hooks (void);
+
+/* In tree-profile.c. */
+extern struct profile_hooks tree_profile_hooks;
+
+/* In rtl-profile.c. */
+extern struct profile_hooks rtl_profile_hooks;
+
+#endif /* GCC_VALUE_PROF_H */
+