tree memtag;
/** The following fields are used to store the information about
- data-reference. {base + initial_offset} is the first location accessed by
- data-ref in the loop, and step is the stride of data-ref in the loop;
+ data-reference. {base_address + initial_offset} is the first location
+ accessed by data-ref in the loop, and step is the stride of data-ref in
+ the loop in bytes;
e.g.:
Example 1 Example 2
data-ref a[j].b[i][j] a + 4B (a is int*)
-
- base a a
+
+ base_address &a a
initial_offset j_0*D_j + i_0*D_i + C 4
step D_j 4
+ data-reference structure info:
+ base_name a NULL
+ access_fn <access_fns of indexes of b> (0, +, 1)
+
**/
- /* The above base, offset and step. */
- tree base;
+ /* The above base_address, offset and step. */
+ tree base_address;
tree initial_offset;
tree step;
#define STMT_VINFO_VEC_STMT(S) (S)->vectorized_stmt
#define STMT_VINFO_DATA_REF(S) (S)->data_ref_info
#define STMT_VINFO_MEMTAG(S) (S)->memtag
-#define STMT_VINFO_VECT_DR_BASE(S) (S)->base
+#define STMT_VINFO_VECT_DR_BASE_ADDRESS(S)(S)->base_address
#define STMT_VINFO_VECT_INIT_OFFSET(S) (S)->initial_offset
#define STMT_VINFO_VECT_STEP(S) (S)->step
#define STMT_VINFO_VECT_BASE_ALIGNED_P(S) (S)->base_aligned_p
/* Perform signed modulo, always returning a non-negative value. */
#define VECT_SMODULO(x,y) ((x) % (y) < 0 ? ((x) % (y) + (y)) : (x) % (y))
+/* vect_dump will be set to stderr or dump_file if exist. */
+extern FILE *vect_dump;
+extern enum verbosity_levels vect_verbosity_level;
/*-----------------------------------------------------------------*/
/* Function prototypes. */
/*-----------------------------------------------------------------*/
-/* Main driver. */
-extern void vectorize_loops (struct loops *);
+/*************************************************************************
+ Simple Loop Peeling Utilities - in tree-vectorizer.c
+ *************************************************************************/
+/* Entry point for peeling of simple loops.
+ Peel the first/last iterations of a loop.
+ It can be used outside of the vectorizer for loops that are simple enough
+ (see function documentation). In the vectorizer it is used to peel the
+ last few iterations when the loop bound is unknown or does not evenly
+ divide by the vectorization factor, and to peel the first few iterations
+ to force the alignment of data references in the loop. */
+extern struct loop *slpeel_tree_peel_loop_to_edge
+ (struct loop *, struct loops *, edge, tree, tree, bool);
+extern void slpeel_make_loop_iterate_ntimes (struct loop *, tree);
+extern bool slpeel_can_duplicate_loop_p (struct loop *, edge);
+#ifdef ENABLE_CHECKING
+extern void slpeel_verify_cfg_after_peeling (struct loop *, struct loop *);
+#endif
-/* creation and deletion of loop and stmt info structs. */
+
+/*************************************************************************
+ General Vectorization Utilities
+ *************************************************************************/
+/** In tree-vectorizer.c **/
+extern tree vect_strip_conversion (tree);
+extern tree get_vectype_for_scalar_type (tree);
+extern bool vect_is_simple_use (tree , loop_vec_info, tree *);
+extern bool vect_is_simple_iv_evolution (unsigned, tree, tree *, tree *);
+extern bool vect_can_force_dr_alignment_p (tree, unsigned int);
+extern enum dr_alignment_support vect_supportable_dr_alignment
+ (struct data_reference *);
+/* Creation and deletion of loop and stmt info structs. */
extern loop_vec_info new_loop_vec_info (struct loop *loop);
extern void destroy_loop_vec_info (loop_vec_info);
extern stmt_vec_info new_stmt_vec_info (tree stmt, loop_vec_info);
+/* Main driver. */
+extern void vectorize_loops (struct loops *);
+
+/** In tree-vect-analyze.c **/
+/* Driver for analysis stage. */
+extern loop_vec_info vect_analyze_loop (struct loop *);
+
+/** In tree-vect-transform.c **/
+extern bool vectorizable_load (tree, block_stmt_iterator *, tree *);
+extern bool vectorizable_store (tree, block_stmt_iterator *, tree *);
+extern bool vectorizable_operation (tree, block_stmt_iterator *, tree *);
+extern bool vectorizable_assignment (tree, block_stmt_iterator *, tree *);
+/* Driver for transformation stage. */
+extern void vect_transform_loop (loop_vec_info, struct loops *);
+
+/*************************************************************************
+ Vectorization Debug Information - in tree-vectorizer.c
+ *************************************************************************/
+extern bool vect_print_dump_info (enum verbosity_levels, LOC);
+extern void vect_set_verbosity_level (const char *);
+extern LOC find_loop_location (struct loop *);
#endif /* GCC_TREE_VECTORIZER_H */
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