diff options
Diffstat (limited to 'libgcc/libgcov-profiler.c')
| -rw-r--r-- | libgcc/libgcov-profiler.c | 42 |
1 files changed, 33 insertions, 9 deletions
diff --git a/libgcc/libgcov-profiler.c b/libgcc/libgcov-profiler.c index 9ba65b9..04d6f9c 100644 --- a/libgcc/libgcov-profiler.c +++ b/libgcc/libgcov-profiler.c @@ -118,20 +118,44 @@ static inline void __gcov_one_value_profiler_body (gcov_type *counters, gcov_type value, int use_atomic) { - if (value == counters[1]) - counters[2]++; - else if (counters[2] == 0) + if (use_atomic) + __atomic_fetch_add (&counters[0], 1, __ATOMIC_RELAXED); + else + counters[0]++; + + ++counters; + + /* We have GCOV_DISK_SINGLE_VALUES as we can keep multiple values + next to each other. */ + unsigned sindex = 0; + + for (unsigned i = 0; i < GCOV_DISK_SINGLE_VALUES; i++) { - counters[2] = 1; - counters[1] = value; + if (value == counters[2 * i]) + { + if (use_atomic) + __atomic_fetch_add (&counters[2 * i + 1], 1, __ATOMIC_RELAXED); + else + counters[2 * i + 1]++; + return; + } + else if (counters[2 * i + 1] == 0) + { + /* We found an empty slot. */ + counters[2 * i] = value; + counters[2 * i + 1] = 1; + return; + } + + if (counters[2 * i + 1] < counters[2 * sindex + 1]) + sindex = i; } - else - counters[2]--; + /* We haven't found an empty slot, then decrement the smallest. */ if (use_atomic) - __atomic_fetch_add (&counters[0], 1, __ATOMIC_RELAXED); + __atomic_fetch_sub (&counters[2 * sindex + 1], 1, __ATOMIC_RELAXED); else - counters[0]++; + counters[2 * sindex + 1]--; } #ifdef L_gcov_one_value_profiler_v2 |