+ file. Values [41..9f] for those in the note file and [a1..ff] for
+ the data file. The tag value zero is used as an explicit end of
+ file marker -- it is not required to be present. */
+
+#define GCOV_TAG_FUNCTION ((gcov_unsigned_t)0x01000000)
+#define GCOV_TAG_FUNCTION_LENGTH (2)
+#define GCOV_TAG_BLOCKS ((gcov_unsigned_t)0x01410000)
+#define GCOV_TAG_BLOCKS_LENGTH(NUM) (NUM)
+#define GCOV_TAG_BLOCKS_NUM(LENGTH) (LENGTH)
+#define GCOV_TAG_ARCS ((gcov_unsigned_t)0x01430000)
+#define GCOV_TAG_ARCS_LENGTH(NUM) (1 + (NUM) * 2)
+#define GCOV_TAG_ARCS_NUM(LENGTH) (((LENGTH) - 1) / 2)
+#define GCOV_TAG_LINES ((gcov_unsigned_t)0x01450000)
+#define GCOV_TAG_COUNTER_BASE ((gcov_unsigned_t)0x01a10000)
+#define GCOV_TAG_COUNTER_LENGTH(NUM) ((NUM) * 2)
+#define GCOV_TAG_COUNTER_NUM(LENGTH) ((LENGTH) / 2)
+#define GCOV_TAG_OBJECT_SUMMARY ((gcov_unsigned_t)0xa1000000)
+#define GCOV_TAG_PROGRAM_SUMMARY ((gcov_unsigned_t)0xa3000000)
+#define GCOV_TAG_SUMMARY_LENGTH \
+ (1 + GCOV_COUNTERS_SUMMABLE * (2 + 3 * 2))
+
+/* Counters that are collected. */
+#define GCOV_COUNTER_ARCS 0 /* Arc transitions. */
+#define GCOV_COUNTERS_SUMMABLE 1 /* Counters which can be
+ summaried. */
+#define GCOV_FIRST_VALUE_COUNTER 1 /* The first of counters used for value
+ profiling. They must form a consecutive
+ interval and their order must match
+ the order of HIST_TYPEs in
+ value-prof.h. */
+#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_COUNTER_V_INDIR 5 /* The most common indirect address */
+#define GCOV_COUNTER_AVERAGE 6 /* Compute average value passed to the
+ counter. */
+#define GCOV_COUNTER_IOR 7 /* IOR of the all values passed to
+ counter. */
+#define GCOV_LAST_VALUE_COUNTER 7 /* The last of counters used for value
+ profiling. */
+#define GCOV_COUNTERS 8
+
+/* Number of counters used for value profiling. */
+#define GCOV_N_VALUE_COUNTERS \
+ (GCOV_LAST_VALUE_COUNTER - GCOV_FIRST_VALUE_COUNTER + 1)
+
+ /* A list of human readable names of the counters */
+#define GCOV_COUNTER_NAMES {"arcs", "interval", "pow2", "single", \
+ "delta","indirect_call", "average", "ior"}
+
+ /* 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", \
+ "__gcov_merge_single", \
+ "__gcov_merge_add", \
+ "__gcov_merge_ior"}
+
+/* Convert a counter index to a tag. */
+#define GCOV_TAG_FOR_COUNTER(COUNT) \
+ (GCOV_TAG_COUNTER_BASE + ((gcov_unsigned_t)(COUNT) << 17))
+/* Convert a tag to a counter. */
+#define GCOV_COUNTER_FOR_TAG(TAG) \
+ ((unsigned)(((TAG) - GCOV_TAG_COUNTER_BASE) >> 17))
+/* Check whether a tag is a counter tag. */
+#define GCOV_TAG_IS_COUNTER(TAG) \
+ (!((TAG) & 0xFFFF) && GCOV_COUNTER_FOR_TAG (TAG) < GCOV_COUNTERS)
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