diff options
Diffstat (limited to 'gcc-4.6/gcc/profile.c')
| -rw-r--r-- | gcc-4.6/gcc/profile.c | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/gcc-4.6/gcc/profile.c b/gcc-4.6/gcc/profile.c index 9659180..68d7631 100644 --- a/gcc-4.6/gcc/profile.c +++ b/gcc-4.6/gcc/profile.c @@ -414,7 +414,7 @@ read_profile_edge_counts (gcov_type *exec_counts) if (flag_profile_correction) { static bool informed = 0; - if (!informed) + if ((flag_opt_info >= OPT_INFO_MAX) && !informed) inform (input_location, "corrupted profile info: edge count exceeds maximal count"); informed = 1; @@ -635,7 +635,7 @@ compute_branch_probabilities (unsigned cfg_checksum, unsigned lineno_checksum) { /* Inconsistency detected. Make it flow-consistent. */ static int informed = 0; - if (informed == 0) + if ((flag_opt_info >= OPT_INFO_MAX) && informed == 0) { informed = 1; inform (input_location, "correcting inconsistent profile data"); @@ -790,9 +790,14 @@ compute_value_histograms (histogram_values values, unsigned cfg_checksum, gcov_type *histogram_counts[GCOV_N_VALUE_COUNTERS]; gcov_type *act_count[GCOV_N_VALUE_COUNTERS]; gcov_type *aact_count; + bool warned[GCOV_N_VALUE_COUNTERS]; + static const char *const ctr_names[] = GCOV_COUNTER_NAMES; for (t = 0; t < GCOV_N_VALUE_COUNTERS; t++) - n_histogram_counters[t] = 0; + { + n_histogram_counters[t] = 0; + warned[t] = 0; + } for (i = 0; i < VEC_length (histogram_value, values); i++) { @@ -828,6 +833,19 @@ compute_value_histograms (histogram_values values, unsigned cfg_checksum, t = (int) hist->type; aact_count = act_count[t]; + /* If cannot find the counters in gcda file, skip and give + a warning. */ + if (aact_count == 0) + { + if (!warned[t] && flag_opt_info >= OPT_INFO_MIN) + warning (0, "cannot find %s counters in function %s.", + ctr_names[COUNTER_FOR_HIST_TYPE(t)], + IDENTIFIER_POINTER ( + DECL_ASSEMBLER_NAME (current_function_decl))); + hist->n_counters = 0; + warned[t] = true; + continue; + } act_count[t] += hist->n_counters; gimple_add_histogram_value (cfun, stmt, hist); |