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| author | Jan Hubicka <jh@suse.cz> | 2007-02-08 23:04:22 +0100 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2007-02-08 22:04:22 +0000 |
| commit | ff39b79b8fe48e0f47c2798b71732250264baaa7 (patch) | |
| tree | 005a5588bd4009ec67f5c701943e2dd2382287ae | |
| parent | b3f7d793a97a705948e5b86b8987c4ac685ed247 (diff) | |
| download | gcc-ff39b79b8fe48e0f47c2798b71732250264baaa7.zip gcc-ff39b79b8fe48e0f47c2798b71732250264baaa7.tar.gz gcc-ff39b79b8fe48e0f47c2798b71732250264baaa7.tar.bz2 | |
tree-cfg.c (bsi_replace): Shortcut when replacing the statement with the same one; always update histograms.
* tree-cfg.c (bsi_replace): Shortcut when replacing the statement with
the same one; always update histograms.
From-SVN: r121724
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/tree-cfg.c | 6 |
2 files changed, 9 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 0c7db90..3a51bb5 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2007-02-08 Jan Hubicka <jh@suse.cz> + + * tree-cfg.c (bsi_replace): Shortcut when replacing the statement with + the same one; always update histograms. + 2007-02-08 Diego Novillo <dnovillo@redhat.com> * passes.c (init_optimization_passes): Tidy comment. diff --git a/gcc/tree-cfg.c b/gcc/tree-cfg.c index d979459..e3e2134 100644 --- a/gcc/tree-cfg.c +++ b/gcc/tree-cfg.c @@ -2840,6 +2840,8 @@ bsi_replace (const block_stmt_iterator *bsi, tree stmt, bool update_eh_info) int eh_region; tree orig_stmt = bsi_stmt (*bsi); + if (stmt == orig_stmt) + return; SET_EXPR_LOCUS (stmt, EXPR_LOCUS (orig_stmt)); set_bb_for_stmt (stmt, bsi->bb); @@ -2852,11 +2854,11 @@ bsi_replace (const block_stmt_iterator *bsi, tree stmt, bool update_eh_info) { remove_stmt_from_eh_region (orig_stmt); add_stmt_to_eh_region (stmt, eh_region); - gimple_duplicate_stmt_histograms (cfun, stmt, cfun, orig_stmt); - gimple_remove_stmt_histograms (cfun, orig_stmt); } } + gimple_duplicate_stmt_histograms (cfun, stmt, cfun, orig_stmt); + gimple_remove_stmt_histograms (cfun, orig_stmt); delink_stmt_imm_use (orig_stmt); *bsi_stmt_ptr (*bsi) = stmt; mark_stmt_modified (stmt); |