diff options
| author | jamborm <jamborm@138bc75d-0d04-0410-961f-82ee72b054a4> | 2013-10-15 14:15:07 +0000 |
|---|---|---|
| committer | jamborm <jamborm@138bc75d-0d04-0410-961f-82ee72b054a4> | 2013-10-15 14:15:07 +0000 |
| commit | a0255a708162aeda3721d91702aaa1e1bd2d3730 (patch) | |
| tree | 034042b55baa73cd22e73f36b314087fb4581427 /gcc/ipa-utils.c | |
| parent | 8e9989b0b3cf04f410346deded203dda1f92857a (diff) | |
| download | gcc-a0255a708162aeda3721d91702aaa1e1bd2d3730.tar.gz | |
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.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@203607 138bc75d-0d04-0410-961f-82ee72b054a4
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 b59be8c6392..5802884afdf 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; |