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* [gcc r14-2384] Simplify force_edge_cold.
@ 2023-07-07 17:21 Jan Hubicka
0 siblings, 0 replies; only message in thread
From: Jan Hubicka @ 2023-07-07 17:21 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:bb3b9c1c3ba8228387ea8a94f3638190d1696324
commit r14-2384-gbb3b9c1c3ba8228387ea8a94f3638190d1696324
Author: Jan Hubicka <jh@suse.cz>
Date: Fri Jul 7 19:21:02 2023 +0200
Simplify force_edge_cold.
gcc/ChangeLog:
* predict.cc (force_edge_cold): Use
set_edge_probability_and_rescale_others; improve dumps.
Diff:
---
gcc/predict.cc | 23 +++++++++--------------
1 file changed, 9 insertions(+), 14 deletions(-)
diff --git a/gcc/predict.cc b/gcc/predict.cc
index d65c26f0ab2..1aa4c25eb70 100644
--- a/gcc/predict.cc
+++ b/gcc/predict.cc
@@ -4421,21 +4421,16 @@ force_edge_cold (edge e, bool impossible)
there. */
else if (prob_sum > profile_probability::never ())
{
- if (!(e->probability < goal))
- e->probability = goal;
-
- profile_probability prob_comp = prob_sum / e->probability.invert ();
-
if (dump_file && (dump_flags & TDF_DETAILS))
- fprintf (dump_file, "Making edge %i->%i %s by redistributing "
- "probability to other edges.\n",
- e->src->index, e->dest->index,
- impossible ? "impossible" : "cold");
- FOR_EACH_EDGE (e2, ei, e->src->succs)
- if (e2 != e)
- {
- e2->probability /= prob_comp;
- }
+ {
+ fprintf (dump_file, "Making edge %i->%i %s by redistributing "
+ "probability to other edges. Original probability: ",
+ e->src->index, e->dest->index,
+ impossible ? "impossible" : "cold");
+ e->probability.dump (dump_file);
+ fprintf (dump_file, "\n");
+ }
+ set_edge_probability_and_rescale_others (e, goal);
if (current_ir_type () != IR_GIMPLE
&& e->src != ENTRY_BLOCK_PTR_FOR_FN (cfun))
update_br_prob_note (e->src);
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