From 732779d073130387365b25f83f1c5266382e3db7 Mon Sep 17 00:00:00 2001 From: Indu Bhagat Date: Fri, 30 Nov 2018 23:54:30 +0000 Subject: coverage.c (get_coverage_counts): Use from_function_decl for precise function location. * coverage.c (get_coverage_counts): Use from_function_decl for precise function location. * profile-count.c (profile_count::dump): Add handling for precise profile quality. * profile.c (compute_branch_probabilities): Rely on exec_counts instead of profile_info to set profile_status of function. (branch_prob): Do not set profile_status of function based on profile_info. Done above based on exec_counts. From-SVN: r266702 --- gcc/profile.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) (limited to 'gcc/profile.c') diff --git a/gcc/profile.c b/gcc/profile.c index be6d3b8..ded0958 100644 --- a/gcc/profile.c +++ b/gcc/profile.c @@ -698,6 +698,9 @@ compute_branch_probabilities (unsigned cfg_checksum, unsigned lineno_checksum) } } + if (exec_counts) + profile_status_for_fn (cfun) = PROFILE_READ; + /* If we have real data, use them! */ if (bb_gcov_count (ENTRY_BLOCK_PTR_FOR_FN (cfun)) || !flag_guess_branch_prob) @@ -705,7 +708,7 @@ compute_branch_probabilities (unsigned cfg_checksum, unsigned lineno_checksum) bb->count = profile_count::from_gcov_type (bb_gcov_count (bb)); /* If function was not trained, preserve local estimates including statically determined zero counts. */ - else + else if (profile_status_for_fn (cfun) == PROFILE_READ) FOR_ALL_BB_FN (bb, cfun) if (!(bb->count == profile_count::zero ())) bb->count = bb->count.global0 (); @@ -718,6 +721,11 @@ compute_branch_probabilities (unsigned cfg_checksum, unsigned lineno_checksum) if (dump_file) { + fprintf (dump_file, " Profile feedback for function"); + fprintf (dump_file, ((profile_status_for_fn (cfun) == PROFILE_READ) + ? " is available \n" + : " is not available \n")); + fprintf (dump_file, "%d branches\n", num_branches); if (num_branches) for (i = 0; i < 10; i++) @@ -1317,12 +1325,12 @@ branch_prob (void) values.release (); free_edge_list (el); coverage_end_function (lineno_checksum, cfg_checksum); - if (flag_branch_probabilities && profile_info) + if (flag_branch_probabilities + && (profile_status_for_fn (cfun) == PROFILE_READ)) { struct loop *loop; if (dump_file && (dump_flags & TDF_DETAILS)) report_predictor_hitrates (); - profile_status_for_fn (cfun) = PROFILE_READ; /* At this moment we have precise loop iteration count estimates. Record them to loop structure before the profile gets out of date. */ -- cgit v1.1