diff options
| author | cfang <cfang@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-08-12 22:18:32 +0000 |
|---|---|---|
| committer | cfang <cfang@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-08-12 22:18:32 +0000 |
| commit | 4af22cd945e23d6edb749f116532adc2e9be23de (patch) | |
| tree | 272cdeba51c3ef614b9354e283c5f3383c30e8c0 /gcc/tree-vect-patterns.c | |
| parent | d437b08bf871eba29642a77d89503985cfc54d72 (diff) | |
| download | gcc-4af22cd945e23d6edb749f116532adc2e9be23de.tar.gz | |
pr45241 give up dot_prod pattern searching if stmt is outside the loop.
* tree-vect-patterns.c (vect_recog_dot_prod_pattern): Give
up dot_prod pattern searching if a stmt is outside the loop.
* gcc.dg/vect/no-tree-pre-pr45241.c: New.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@163207 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-vect-patterns.c')
| -rw-r--r-- | gcc/tree-vect-patterns.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/tree-vect-patterns.c b/gcc/tree-vect-patterns.c index 19f0ae67a88..19df13f63a4 100644 --- a/gcc/tree-vect-patterns.c +++ b/gcc/tree-vect-patterns.c @@ -255,6 +255,11 @@ vect_recog_dot_prod_pattern (gimple last_stmt, tree *type_in, tree *type_out) prod_type = half_type; stmt = SSA_NAME_DEF_STMT (oprnd0); + + /* It could not be the dot_prod pattern if the stmt is outside the loop. */ + if (!flow_bb_inside_loop_p (loop, gimple_bb (stmt))) + return NULL; + /* FORNOW. Can continue analyzing the def-use chain when this stmt in a phi inside the loop (in case we are analyzing an outer-loop). */ if (!is_gimple_assign (stmt)) |