2005-03-04 Andrew Haley <aph@redhat.com>

[pf3gnuchains/gcc-fork.git] / gcc / value-prof.h

diff --git a/gcc/value-prof.h b/gcc/value-prof.h
index 233895e..b9d0d06 100644 (file)
--- a/gcc/value-prof.h
+++ b/gcc/value-prof.h
@@ -1,5 +1,5 @@
 /* Definitions for transformations based on profile information for values.
-   Copyright (C) 2003 Free Software Foundation, Inc.
+   Copyright (C) 2003, 2004 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -18,6 +18,9 @@ along with GCC; see the file COPYING.  If not, write to the Free
 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
 {
@@ -35,14 +38,16 @@ enum hist_type
   ((enum hist_type) ((COUNTER) - GCOV_FIRST_VALUE_COUNTER))
 
 /* The value to measure.  */
-struct histogram_value
+/* The void *'s are either rtx or tree, depending on which IR is in use.  */
+struct histogram_value_t GTY(())
 {
-  rtx value;           /* The value to profile.  */
-  enum machine_mode mode; /* And its mode.  */
-  rtx seq;             /* Insns required to count the profiled value.  */
-  rtx insn;            /* Insn before that to measure.  */
-  enum hist_type type; /* Type of information to measure.  */
-  unsigned n_counters; /* Number of required counters.  */
+  PTR GTY ((skip (""))) value;         /* The value to profile.  */
+  enum machine_mode mode;              /* And its mode.  */
+  PTR GTY ((skip (""))) seq;           /* Insns required to count the
+                                          profiled value.  */
+  PTR GTY ((skip (""))) insn;          /* Insn before that to measure.  */
+  enum hist_type type;                 /* Type of information to measure.  */
+  unsigned n_counters;                 /* Number of required counters.  */
   union
     {
       struct
@@ -59,5 +64,56 @@ struct histogram_value
     } hdata;           /* Profiled information specific data.  */
 };
 
-extern void find_values_to_profile (unsigned *, struct histogram_value **);
-extern void free_profiled_values (unsigned, struct histogram_value *);
+typedef struct histogram_value_t *histogram_value;
+
+DEF_VEC_GC_P(histogram_value);
+
+typedef VEC(histogram_value) *histogram_values;
+
+/* 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 (histogram_values *);
+extern bool value_profile_transformations (void);
+\f
+/* External declarations for edge-based profiling.  */
+struct profile_hooks {
+
+  /* Insert code to initialize edge profiler.  */
+  void (*init_edge_profiler) (void);
+
+  /* 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) (histogram_value, unsigned, unsigned);
+
+  /* Insert code to increment the power of two histogram counter.  */
+  void (*gen_pow2_profiler) (histogram_value, unsigned, unsigned);
+
+  /* Insert code to find the most common value.  */
+  void (*gen_one_value_profiler) (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) (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 */
+