2005-06-14 Doug Rupp <rupp@adacore.com>

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

diff --git a/gcc/value-prof.h b/gcc/value-prof.h
index 60215fd..692746a 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, 2005 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -38,14 +38,25 @@ enum hist_type
   ((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_t GTY(())
+struct histogram_value_t
 {
-  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.  */
+  union 
+    {
+      struct
+       {
+         rtx value;            /* The value to profile.  */
+         rtx seq;              /* Insns required to count the profiled value.  */
+         rtx insn;             /* Insn before that to measure.  */
+         enum machine_mode mode;               /* Mode of value to profile.  */
+       } rtl;
+      struct
+       {
+         tree value;           /* The value to profile.  */
+         tree stmt;            /* Insn containing the value.  */
+         gcov_type *counters;                  /* Pointer to first counter.  */
+         struct histogram_value_t *next;               /* Linked list pointer.  */
+       } tree;
+    } hvalue;
   enum hist_type type;                 /* Type of information to measure.  */
   unsigned n_counters;                 /* Number of required counters.  */
   union
@@ -53,22 +64,17 @@ struct histogram_value_t GTY(())
       struct
        {
          int int_start;        /* First value in interval.  */
-         int steps;            /* Number of values in it.  */
-         int may_be_less;      /* May the value be below?  */
-         int may_be_more;      /* Or above.  */
+         unsigned int steps;   /* Number of values in it.  */
        } intvl;        /* Interval histogram data.  */
-      struct
-       {
-         int may_be_other;     /* If the value may be non-positive or not 2^k.  */
-       } pow2;         /* Power of 2 histogram data.  */
     } hdata;           /* Profiled information specific data.  */
 };
 
 typedef struct histogram_value_t *histogram_value;
 
 DEF_VEC_P(histogram_value);
+DEF_VEC_ALLOC_P(histogram_value,heap);
 
-typedef VEC(histogram_value) *histogram_values;
+typedef VEC(histogram_value,heap) *histogram_values;
 
 /* Hooks registration.  */
 extern void rtl_register_value_prof_hooks (void);
@@ -80,6 +86,10 @@ 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);