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| author | Andre Vieira <andre.simoesdiasvieira@arm.com> | 2022-10-13 10:34:27 +0100 |
|---|---|---|
| committer | Andre Vieira <andre.simoesdiasvieira@arm.com> | 2022-10-13 10:34:27 +0100 |
| commit | 7f9a7465c863e482708d2a00f5f7ff91ae3a7e0b (patch) | |
| tree | 9920213cbd3ac1cff2cdafe44277d4754203f358 | |
| parent | 7c059880fca175589efc8e06ef458020a005658d (diff) | |
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vect: Don't pattern match BITFIELD_REF's of non-integrals [PR107226]
The original patch supported matching the vect_recog_bitfield_ref_pattern for
BITFIELD_REF's where the first operand didn't have a INTEGRAL_TYPE_P type.
That means it would also match vectors, leading to regressions in targets that
supported vectorization of those.
gcc/ChangeLog:
PR tree-optimization/107226
* tree-vect-patterns.cc (vect_recog_bitfield_ref_pattern): Reject
BITFIELD_REF's with non integral typed first operands.
| -rw-r--r-- | gcc/tree-vect-patterns.cc | 21 |
1 files changed, 2 insertions, 19 deletions
diff --git a/gcc/tree-vect-patterns.cc b/gcc/tree-vect-patterns.cc index 0cc315d..6afd57a 100644 --- a/gcc/tree-vect-patterns.cc +++ b/gcc/tree-vect-patterns.cc @@ -1913,6 +1913,7 @@ vect_recog_bitfield_ref_pattern (vec_info *vinfo, stmt_vec_info stmt_info, return NULL; if (!INTEGRAL_TYPE_P (TREE_TYPE (bf_ref)) + || !INTEGRAL_TYPE_P (TREE_TYPE (container)) || TYPE_MODE (TREE_TYPE (container)) == E_BLKmode) return NULL; @@ -1921,25 +1922,7 @@ vect_recog_bitfield_ref_pattern (vec_info *vinfo, stmt_vec_info stmt_info, tree ret = gimple_assign_lhs (first_stmt); tree ret_type = TREE_TYPE (ret); bool shift_first = true; - tree vectype; - - /* If the first operand of the BIT_FIELD_REF is not an INTEGER type, convert - it to one of the same width so we can perform the necessary masking and - shifting. */ - if (!INTEGRAL_TYPE_P (TREE_TYPE (container))) - { - unsigned HOST_WIDE_INT container_size = - tree_to_uhwi (TYPE_SIZE (TREE_TYPE (container))); - tree int_type = build_nonstandard_integer_type (container_size, true); - pattern_stmt - = gimple_build_assign (vect_recog_temp_ssa_var (int_type), - VIEW_CONVERT_EXPR, container); - vectype = get_vectype_for_scalar_type (vinfo, int_type); - container = gimple_assign_lhs (pattern_stmt); - append_pattern_def_seq (vinfo, stmt_info, pattern_stmt, vectype); - } - else - vectype = get_vectype_for_scalar_type (vinfo, TREE_TYPE (container)); + tree vectype = get_vectype_for_scalar_type (vinfo, TREE_TYPE (container)); /* We move the conversion earlier if the loaded type is smaller than the return type to enable the use of widening loads. */ |