diff options
| author | hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-06-06 12:31:35 +0000 |
|---|---|---|
| committer | hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-06-06 12:31:35 +0000 |
| commit | d5043f32aad364e89ea649d8be0258fcffcece69 (patch) | |
| tree | b33345b9d09639a34fdfad1df1f1c467319d43a7 /gcc/predict.c | |
| parent | bdf4b4899139c47d5db18b23d21ef8875604d278 (diff) | |
| download | gcc-d5043f32aad364e89ea649d8be0258fcffcece69.tar.gz | |
* predict.c (tree_predict_edge): Don't drop useless predictions;
check that it is not called too late in the game.
(gate_estimate_probability): New gate.
(pass_profile): Gate.
* tree-mudflap.c (mf_build_check_statement_for): Do not drop
predictions; update CFG instead.
* cfgrtl.c (rtl_verify_flow_info): Check that predcitions are consumed.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@100662 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/predict.c')
| -rw-r--r-- | gcc/predict.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/gcc/predict.c b/gcc/predict.c index 22468ace111..61cc5402e74 100644 --- a/gcc/predict.c +++ b/gcc/predict.c @@ -231,8 +231,9 @@ rtl_predict_edge (edge e, enum br_predictor predictor, int probability) void tree_predict_edge (edge e, enum br_predictor predictor, int probability) { + gcc_assert (profile_status != PROFILE_GUESSED); if ((e->src != ENTRY_BLOCK_PTR && EDGE_COUNT (e->src->succs) > 1) - && flag_guess_branch_prob) + && flag_guess_branch_prob && optimize) { struct edge_prediction *i = ggc_alloc (sizeof (struct edge_prediction)); @@ -1926,11 +1927,16 @@ choose_function_section (void) UNLIKELY_EXECUTED_TEXT_SECTION_NAME); } +static bool +gate_estimate_probability (void) +{ + return flag_guess_branch_prob; +} struct tree_opt_pass pass_profile = { "profile", /* name */ - NULL, /* gate */ + gate_estimate_probability, /* gate */ tree_estimate_probability, /* execute */ NULL, /* sub */ NULL, /* next */ |