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| author | H.J. Lu <hongjiu.lu@intel.com> | 2015-02-17 21:25:56 +0000 |
|---|---|---|
| committer | H.J. Lu <hjl@gcc.gnu.org> | 2015-02-17 13:25:56 -0800 |
| commit | 3c99176a7f968bdb8b7a3225265246f643551c80 (patch) | |
| tree | d04bf3e89fcf482728834b7a88ea6c6667b145fa /gcc/ipa-cp.c | |
| parent | d420206ea581d85273f6d05280e658d3fdab604e (diff) | |
| download | gcc-3c99176a7f968bdb8b7a3225265246f643551c80.zip gcc-3c99176a7f968bdb8b7a3225265246f643551c80.tar.gz gcc-3c99176a7f968bdb8b7a3225265246f643551c80.tar.bz2 | |
Add -fipa-cp-alignment
This patch adds -fipa-cp-alignment to provide a way to enable/disable
alignment discovery and propagation in IPA-CP.
gcc/
* common.opt (fipa-cp-alignment): New.
* ipa-cp.c (ipcp_store_alignment_results): Check
flag_ipa_cp_alignment.
* opts.c (default_options_table): Enable -fipa-cp-alignment for
-O2.
(enable_fdo_optimizations): Set x_flag_ipa_cp_alignment.
* doc/invoke.texi: Document -fipa-cp-alignment.
gcc/testsuite/
* gcc.dg/ipa/propalign-3.c: New test.
From-SVN: r220773
Diffstat (limited to 'gcc/ipa-cp.c')
| -rw-r--r-- | gcc/ipa-cp.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/ipa-cp.c b/gcc/ipa-cp.c index 440ced4..103ac99a 100644 --- a/gcc/ipa-cp.c +++ b/gcc/ipa-cp.c @@ -4323,6 +4323,15 @@ ipcp_store_alignment_results (void) bool dumped_sth = false; bool found_useful_result = false; + if (!opt_for_fn (node->decl, flag_ipa_cp_alignment)) + { + if (dump_file) + fprintf (dump_file, "Not considering %s for alignment discovery " + "and propagate; -fipa-cp-alignment: disabled.\n", + node->name ()); + continue; + } + if (info->ipcp_orig_node) info = IPA_NODE_REF (info->ipcp_orig_node); |