diff options
Diffstat (limited to 'gcc/tree-data-ref.h')
| -rw-r--r-- | gcc/tree-data-ref.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/gcc/tree-data-ref.h b/gcc/tree-data-ref.h index 96bc764..dbe8372 100644 --- a/gcc/tree-data-ref.h +++ b/gcc/tree-data-ref.h @@ -148,6 +148,32 @@ struct data_reference typedef struct data_reference *data_reference_p; +/* This struct is used to store the information of a data reference, + including the data ref itself and the segment length for aliasing + checks. This is used to merge alias checks. */ + +struct dr_with_seg_len +{ + dr_with_seg_len (data_reference_p d, tree len) + : dr (d), seg_len (len) {} + + data_reference_p dr; + tree seg_len; +}; + +/* This struct contains two dr_with_seg_len objects with aliasing data + refs. Two comparisons are generated from them. */ + +struct dr_with_seg_len_pair_t +{ + dr_with_seg_len_pair_t (const dr_with_seg_len& d1, + const dr_with_seg_len& d2) + : first (d1), second (d2) {} + + dr_with_seg_len first; + dr_with_seg_len second; +}; + enum data_dependence_direction { dir_positive, dir_negative, @@ -343,6 +369,8 @@ extern bool dr_equal_offsets_p (struct data_reference *, struct data_reference *); extern int data_ref_compare_tree (tree, tree); +extern void prune_runtime_alias_test_list (vec<dr_with_seg_len_pair_t> *, + unsigned HOST_WIDE_INT); /* Return true when the base objects of data references A and B are the same memory object. */ |