diff options
| author | tejohnson <tejohnson@138bc75d-0d04-0410-961f-82ee72b054a4> | 2013-05-02 13:20:47 +0000 |
|---|---|---|
| committer | tejohnson <tejohnson@138bc75d-0d04-0410-961f-82ee72b054a4> | 2013-05-02 13:20:47 +0000 |
| commit | 7007400071d3afc1525ca1691c93ae77c509349f (patch) | |
| tree | e9eaf4c390a4ad7d8e3e0600f9736eb3868af2dc /gcc/cfg.c | |
| parent | 4817649a7d71cac4236204ad8eecc15dee6bd6d9 (diff) | |
| download | gcc-7007400071d3afc1525ca1691c93ae77c509349f.tar.gz | |
Follow-on patch to r197595 to complete the replacement of truncating divides
in profile scaling code with rounding divide equivalents using helper routines
in basic-block.h.
In addition to bootstrap and profiledbootstrap builds and tests (with and
without LTO), I built and tested performance of the SPEC cpu2006 benchmarks
with FDO on a Nehalem system. I didn't see any performance changes that
looked significant.
2013-05-02 Teresa Johnson <tejohnson@google.com>
* loop-unswitch.c (unswitch_loop): Use helper routines with rounding
divides.
* cfg.c (update_bb_profile_for_threading): Ditto.
* tree-inline.c (copy_bb): Ditto.
(copy_edges_for_bb): Ditto.
(initialize_cfun): Ditto.
(copy_cfg_body): Ditto.
(expand_call_inline): Ditto.
* ipa-inline-analysis.c (estimate_edge_size_and_time): Ditto.
(estimate_node_size_and_time): Ditto.
(inline_merge_summary): Ditto.
* cgraphclones.c (cgraph_clone_edge): Ditto.
(cgraph_clone_node): Ditto.
* sched-rgn.c (compute_dom_prob_ps): Ditto.
(compute_trg_info): Ditto.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@198532 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/cfg.c')
| -rw-r--r-- | gcc/cfg.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/gcc/cfg.c b/gcc/cfg.c index 6405f93f429..9c6c939139c 100644 --- a/gcc/cfg.c +++ b/gcc/cfg.c @@ -848,8 +848,7 @@ update_bb_profile_for_threading (basic_block bb, int edge_frequency, /* Compute the probability of TAKEN_EDGE being reached via threaded edge. Watch for overflows. */ if (bb->frequency) - /* Update to use GCOV_COMPUTE_SCALE. */ - prob = edge_frequency * REG_BR_PROB_BASE / bb->frequency; + prob = GCOV_COMPUTE_SCALE (edge_frequency, bb->frequency); else prob = 0; if (prob > taken_edge->probability) |