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-rw-r--r--gcc/gcov-io.h33
1 files changed, 25 insertions, 8 deletions
diff --git a/gcc/gcov-io.h b/gcc/gcov-io.h
index 5565408..769fd8a 100644
--- a/gcc/gcov-io.h
+++ b/gcc/gcov-io.h
@@ -269,14 +269,24 @@ typedef HOST_WIDEST_INT gcov_type;
#define GCOV_COUNTER_ARCS 0 /* Arc transitions. */
#define GCOV_COUNTERS_SUMMABLE 1 /* Counters which can be
summaried. */
-#define GCOV_COUNTERS 1
-
-/* A list of human readable names of the counters */
-#define GCOV_COUNTER_NAMES {"arcs"}
-
-/* Names of merge functions for counters. */
-#define GCOV_MERGE_FUNCTIONS {"__gcov_merge_add"}
-
+#define GCOV_COUNTER_V_INTERVAL 1 /* Histogram of value inside an interval. */
+#define GCOV_COUNTER_V_POW2 2 /* Histogram of exact power2 logarithm
+ of a value. */
+#define GCOV_COUNTER_V_SINGLE 3 /* The most common value of expression. */
+#define GCOV_COUNTER_V_DELTA 4 /* The most common difference between
+ consecutive values of expression. */
+#define GCOV_COUNTERS 5
+
+ /* A list of human readable names of the counters */
+#define GCOV_COUNTER_NAMES {"arcs", "interval", "pow2", "single", "delta"}
+
+ /* Names of merge functions for counters. */
+#define GCOV_MERGE_FUNCTIONS {"__gcov_merge_add", \
+ "__gcov_merge_add", \
+ "__gcov_merge_add", \
+ "__gcov_merge_single", \
+ "__gcov_merge_delta"}
+
/* Convert a counter index to a tag. */
#define GCOV_TAG_FOR_COUNTER(COUNT) \
(GCOV_TAG_COUNTER_BASE + ((gcov_unsigned_t)(COUNT) << 17))
@@ -380,6 +390,13 @@ extern void __gcov_flush (void);
/* The merge function that just sums the counters. */
extern void __gcov_merge_add (gcov_type *, unsigned);
+
+/* The merge function to choose the most often value. */
+extern void __gcov_merge_single (gcov_type *, unsigned);
+
+/* The merge function to choose the most often difference between consecutive
+ values. */
+extern void __gcov_merge_delta (gcov_type *, unsigned);
#endif /* IN_LIBGCOV */
#if IN_LIBGCOV >= 0