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author | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 2004-09-15 04:12:18 +0000 |
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committer | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 2004-09-15 04:12:18 +0000 |
commit | 4e4a0d35e1f59639aee93b6a26e9bd8ea4dca2be (patch) | |
tree | cf5b9beec3f25e2e51b674da28677528ab57f45a /gcc/tree-dfa.c | |
parent | 1eff44ec84d9f93fa10713ebd0177d46e1747c1a (diff) | |
download | gcc-4e4a0d35e1f59639aee93b6a26e9bd8ea4dca2be.tar.gz |
* tree-dfa.c (free_df_for_stmt): No longer static.
(free_df): Update comments.
* tree-flow.h (free_df_for_stmt): Prototype.
* tree-ssa-dse.c (dse_optimize_stmt): Call free_df_for_stmt. Also
call release_defs.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@87531 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-dfa.c')
-rw-r--r-- | gcc/tree-dfa.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/gcc/tree-dfa.c b/gcc/tree-dfa.c index 533b98884e6..3d7e4d4b4d6 100644 --- a/gcc/tree-dfa.c +++ b/gcc/tree-dfa.c @@ -188,9 +188,9 @@ compute_immediate_uses (int flags, bool (*calc_for)(tree)) } -/* Invalidates dataflow information for a statement STMT. */ +/* Invalidates dataflow information for a statement STMT. */ -static void +void free_df_for_stmt (tree stmt) { dataflow_t *df; @@ -221,7 +221,13 @@ free_df_for_stmt (tree stmt) } -/* Invalidate dataflow information for the whole function. */ +/* Invalidate dataflow information for the whole function. + + Note this only invalidates dataflow information on statements and + PHI nodes which are reachable. + + A deleted statement may still have attached dataflow information + on it. */ void free_df (void) |