diff options
Diffstat (limited to 'gcc/c-family/c-common.c')
| -rw-r--r-- | gcc/c-family/c-common.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/gcc/c-family/c-common.c b/gcc/c-family/c-common.c index 089c7576ddf..dce390260cd 100644 --- a/gcc/c-family/c-common.c +++ b/gcc/c-family/c-common.c @@ -10833,4 +10833,30 @@ build_userdef_literal (tree suffix_id, tree value, tree num_string) return literal; } +/* For vector[index], convert the vector to a + pointer of the underlying type. */ +void +convert_vector_to_pointer_for_subscript (location_t loc, + tree* vecp, tree index) +{ + if (TREE_CODE (TREE_TYPE (*vecp)) == VECTOR_TYPE) + { + tree type = TREE_TYPE (*vecp); + tree type1; + + if (TREE_CODE (index) == INTEGER_CST) + if (!host_integerp (index, 1) + || ((unsigned HOST_WIDE_INT) tree_low_cst (index, 1) + >= TYPE_VECTOR_SUBPARTS (type))) + warning_at (loc, OPT_Warray_bounds, "index value is out of bound"); + + c_common_mark_addressable_vec (*vecp); + type = build_qualified_type (TREE_TYPE (type), TYPE_QUALS (type)); + type = build_pointer_type (type); + type1 = build_pointer_type (TREE_TYPE (*vecp)); + *vecp = build1 (ADDR_EXPR, type1, *vecp); + *vecp = convert (type, *vecp); + } +} + #include "gt-c-family-c-common.h" |
