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| author | Zdenek Dvorak <dvorakz@suse.cz> | 2005-05-11 00:33:30 +0200 |
|---|---|---|
| committer | Zdenek Dvorak <rakdver@gcc.gnu.org> | 2005-05-10 22:33:30 +0000 |
| commit | 5deaef19e6360dc228e4b11cac2070fabdb036f4 (patch) | |
| tree | 60f4c57bd6dd81006748f1e3212df2fae47e1faf /gcc/tree-cfg.c | |
| parent | e0bba0931d059bafc61987a2aee817ed4d6c1064 (diff) | |
| download | gcc-5deaef19e6360dc228e4b11cac2070fabdb036f4.zip gcc-5deaef19e6360dc228e4b11cac2070fabdb036f4.tar.gz gcc-5deaef19e6360dc228e4b11cac2070fabdb036f4.tar.bz2 | |
tree-cfg.c (tree_duplicate_sese_region): Update profile.
* tree-cfg.c (tree_duplicate_sese_region): Update profile.
* tree-optimize.c (init_tree_optimization_passes) Swap
pass_ch and pass_profile.
* tree-ssa-loop-ch.c (copy_loop_headers): Do not update profile
here. Remove rewrite_into_loop_closed_ssa call.
From-SVN: r99547
Diffstat (limited to 'gcc/tree-cfg.c')
| -rw-r--r-- | gcc/tree-cfg.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/gcc/tree-cfg.c b/gcc/tree-cfg.c index ccafd9a..c54305c 100644 --- a/gcc/tree-cfg.c +++ b/gcc/tree-cfg.c @@ -4847,6 +4847,7 @@ tree_duplicate_sese_region (edge entry, edge exit, edge exit_copy; basic_block *doms; edge redirected; + int total_freq, entry_freq; if (!can_copy_bbs_p (region, n_region)) return false; @@ -4893,12 +4894,24 @@ tree_duplicate_sese_region (edge entry, edge exit, gcc_assert (!need_ssa_update_p ()); - /* Record blocks outside the region that are duplicated by something + /* Record blocks outside the region that are dominated by something inside. */ doms = xmalloc (sizeof (basic_block) * n_basic_blocks); n_doms = get_dominated_by_region (CDI_DOMINATORS, region, n_region, doms); + total_freq = entry->dest->frequency; + entry_freq = EDGE_FREQUENCY (entry); + /* Fix up corner cases, to avoid division by zero or creation of negative + frequencies. */ + if (total_freq == 0) + total_freq = 1; + else if (entry_freq > total_freq) + entry_freq = total_freq; + copy_bbs (region, n_region, region_copy, &exit, 1, &exit_copy, loop); + scale_bbs_frequencies_int (region, n_region, total_freq - entry_freq, + total_freq); + scale_bbs_frequencies_int (region_copy, n_region, entry_freq, total_freq); if (copying_header) { |