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-rw-r--r--gcc/tree-vectorizer.h10
1 files changed, 9 insertions, 1 deletions
diff --git a/gcc/tree-vectorizer.h b/gcc/tree-vectorizer.h
index 56811e5..8291a71 100644
--- a/gcc/tree-vectorizer.h
+++ b/gcc/tree-vectorizer.h
@@ -238,6 +238,12 @@ typedef struct _loop_vec_info : public vec_info {
PARAM_MIN_VECT_LOOP_BOUND. */
unsigned int th;
+ /* When applying loop versioning, the vector form should only be used
+ if the number of scalar iterations is >= this value, on top of all
+ the other requirements. Ignored when loop versioning is not being
+ used. */
+ poly_uint64 versioning_threshold;
+
/* Unrolling factor */
int vectorization_factor;
@@ -357,6 +363,7 @@ typedef struct _loop_vec_info : public vec_info {
#define LOOP_VINFO_NITERS_UNCHANGED(L) (L)->num_iters_unchanged
#define LOOP_VINFO_NITERS_ASSUMPTIONS(L) (L)->num_iters_assumptions
#define LOOP_VINFO_COST_MODEL_THRESHOLD(L) (L)->th
+#define LOOP_VINFO_VERSIONING_THRESHOLD(L) (L)->versioning_threshold
#define LOOP_VINFO_VECTORIZABLE_P(L) (L)->vectorizable
#define LOOP_VINFO_VECT_FACTOR(L) (L)->vectorization_factor
#define LOOP_VINFO_MAX_VECT_FACTOR(L) (L)->max_vectorization_factor
@@ -1142,7 +1149,8 @@ extern void slpeel_make_loop_iterate_ntimes (struct loop *, tree);
extern bool slpeel_can_duplicate_loop_p (const struct loop *, const_edge);
struct loop *slpeel_tree_duplicate_loop_to_edge_cfg (struct loop *,
struct loop *, edge);
-extern void vect_loop_versioning (loop_vec_info, unsigned int, bool);
+extern void vect_loop_versioning (loop_vec_info, unsigned int, bool,
+ poly_uint64);
extern struct loop *vect_do_peeling (loop_vec_info, tree, tree,
tree *, int, bool, bool);
extern source_location find_loop_location (struct loop *);