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| author | Martin Jambor <mjambor@suse.cz> | 2013-10-15 16:15:07 +0200 |
|---|---|---|
| committer | Martin Jambor <jamborm@gcc.gnu.org> | 2013-10-15 16:15:07 +0200 |
| commit | 4cb1359729c72f65a8b6da12af6baab74082dd3f (patch) | |
| tree | 034042b55baa73cd22e73f36b314087fb4581427 /gcc/ipa-utils.c | |
| parent | 2e2206faab182f079bc6d6019f7872820d830bee (diff) | |
| download | gcc-4cb1359729c72f65a8b6da12af6baab74082dd3f.zip gcc-4cb1359729c72f65a8b6da12af6baab74082dd3f.tar.gz gcc-4cb1359729c72f65a8b6da12af6baab74082dd3f.tar.bz2 | |
ipa-utils.h (ipa_edge_within_scc): Declare.
2013-10-15 Martin Jambor <mjambor@suse.cz>
* ipa-utils.h (ipa_edge_within_scc): Declare.
* ipa-cp.c (edge_within_scc): Moved...
* ipa-utils.c (ipa_edge_within_scc): ...here. Updated all callers.
From-SVN: r203607
Diffstat (limited to 'gcc/ipa-utils.c')
| -rw-r--r-- | gcc/ipa-utils.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/gcc/ipa-utils.c b/gcc/ipa-utils.c index b59be8c..5802884 100644 --- a/gcc/ipa-utils.c +++ b/gcc/ipa-utils.c @@ -253,6 +253,22 @@ ipa_get_nodes_in_cycle (struct cgraph_node *node) return v; } +/* Return true iff the CS is an edge within a strongly connected component as + computed by ipa_reduced_postorder. */ + +bool +ipa_edge_within_scc (struct cgraph_edge *cs) +{ + struct ipa_dfs_info *caller_dfs = (struct ipa_dfs_info *) cs->caller->symbol.aux; + struct ipa_dfs_info *callee_dfs; + struct cgraph_node *callee = cgraph_function_node (cs->callee, NULL); + + callee_dfs = (struct ipa_dfs_info *) callee->symbol.aux; + return (caller_dfs + && callee_dfs + && caller_dfs->scc_no == callee_dfs->scc_no); +} + struct postorder_stack { struct cgraph_node *node; |