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| author | Martin Liska <marxin.liska@gmail.com> | 2013-12-17 22:20:12 +0000 |
|---|---|---|
| committer | Martin Liska <marxin@gcc.gnu.org> | 2013-12-17 22:20:12 +0000 |
| commit | 9cec31f43afbdb326fddbc144e9aea63986828e4 (patch) | |
| tree | 3ad29a01dabd9e49f49f9ebdc04f7655721d6300 /gcc/predict.c | |
| parent | 14407011d62da724e88ac0cb30390d3f8fda2b9f (diff) | |
| download | gcc-9cec31f43afbdb326fddbc144e9aea63986828e4.zip gcc-9cec31f43afbdb326fddbc144e9aea63986828e4.tar.gz gcc-9cec31f43afbdb326fddbc144e9aea63986828e4.tar.bz2 | |
Time profile-based function reordering (phase 2).
Co-Authored-By: Jan Hubicka <jh@suse.cz>
From-SVN: r206070
Diffstat (limited to 'gcc/predict.c')
| -rw-r--r-- | gcc/predict.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/gcc/predict.c b/gcc/predict.c index a5ad34f..1826a06 100644 --- a/gcc/predict.c +++ b/gcc/predict.c @@ -2839,12 +2839,24 @@ handle_missing_profiles (void) { struct cgraph_edge *e; gcov_type call_count = 0; + gcov_type max_tp_first_run = 0; struct function *fn = DECL_STRUCT_FUNCTION (node->decl); if (node->count) continue; for (e = node->callers; e; e = e->next_caller) + { call_count += e->count; + + if (e->caller->tp_first_run > max_tp_first_run) + max_tp_first_run = e->caller->tp_first_run; + } + + /* If time profile is missing, let assign the maximum that comes from + caller functions. */ + if (!node->tp_first_run && max_tp_first_run) + node->tp_first_run = max_tp_first_run + 1; + if (call_count && fn && fn->cfg && (call_count * unlikely_count_fraction >= profile_info->runs)) |