diff options
Diffstat (limited to 'gcc/tree-vect-transform.c')
| -rw-r--r-- | gcc/tree-vect-transform.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/gcc/tree-vect-transform.c b/gcc/tree-vect-transform.c index 5032dedf2a0..0d14c13143b 100644 --- a/gcc/tree-vect-transform.c +++ b/gcc/tree-vect-transform.c @@ -349,9 +349,18 @@ vect_create_data_ref_ptr (tree stmt, block_stmt_iterator *bsi, tree offset, tag = STMT_VINFO_MEMTAG (stmt_info); gcc_assert (tag); - get_var_ann (vect_ptr)->type_mem_tag = tag; - get_var_ann (vect_ptr)->subvars = STMT_VINFO_SUBVARS (stmt_info); + /* If the memory tag of the original reference was not a type tag or + if the pointed-to type of VECT_PTR has an alias set number + different than TAG's, then we need to create a new type tag for + VECT_PTR and add TAG to its alias set. */ + if (var_ann (tag)->mem_tag_kind == NOT_A_TAG + || get_alias_set (tag) != get_alias_set (TREE_TYPE (vect_ptr_type))) + add_type_alias (vect_ptr, tag); + else + var_ann (vect_ptr)->type_mem_tag = tag; + + var_ann (vect_ptr)->subvars = STMT_VINFO_SUBVARS (stmt_info); /** (3) Calculate the initial address the vector-pointer, and set the vector-pointer to point to it before the loop: **/ |