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| author | Richard Guenther <rguenther@suse.de> | 2011-07-12 14:38:41 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2011-07-12 14:38:41 +0000 |
| commit | b7a83ad8eb8282676f1431f288718d08253a2739 (patch) | |
| tree | 60877afac271d672ebff833632a3a61258d4bff1 /gcc/tree-ssa-copyrename.c | |
| parent | 261ceb73df1deb56f05ce4454356d470ee9beca0 (diff) | |
| download | gcc-b7a83ad8eb8282676f1431f288718d08253a2739.zip gcc-b7a83ad8eb8282676f1431f288718d08253a2739.tar.gz gcc-b7a83ad8eb8282676f1431f288718d08253a2739.tar.bz2 | |
tree-ssa-copyrename.c (rename_ssa_copies): Zero statistics.
2011-07-12 Richard Guenther <rguenther@suse.de>
* tree-ssa-copyrename.c (rename_ssa_copies): Zero statistics.
Do not perform no-op changes.
From-SVN: r176206
Diffstat (limited to 'gcc/tree-ssa-copyrename.c')
| -rw-r--r-- | gcc/tree-ssa-copyrename.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/gcc/tree-ssa-copyrename.c b/gcc/tree-ssa-copyrename.c index 88a156b..3e01b6e 100644 --- a/gcc/tree-ssa-copyrename.c +++ b/gcc/tree-ssa-copyrename.c @@ -296,6 +296,8 @@ rename_ssa_copies (void) FILE *debug; bool updated = false; + memset (&stats, 0, sizeof (stats)); + if (dump_file && (dump_flags & TDF_DETAILS)) debug = dump_file; else @@ -355,16 +357,15 @@ rename_ssa_copies (void) if (!part_var) continue; var = ssa_name (x); + if (SSA_NAME_VAR (var) == SSA_NAME_VAR (part_var)) + continue; if (debug) { - if (SSA_NAME_VAR (var) != SSA_NAME_VAR (part_var)) - { - fprintf (debug, "Coalesced "); - print_generic_expr (debug, var, TDF_SLIM); - fprintf (debug, " to "); - print_generic_expr (debug, part_var, TDF_SLIM); - fprintf (debug, "\n"); - } + fprintf (debug, "Coalesced "); + print_generic_expr (debug, var, TDF_SLIM); + fprintf (debug, " to "); + print_generic_expr (debug, part_var, TDF_SLIM); + fprintf (debug, "\n"); } stats.coalesced++; replace_ssa_name_symbol (var, SSA_NAME_VAR (part_var)); |