The following makes fending off existing vector types from vectorization also apply to word_mode vector types. I've chosen to add a positive list of allowed scalar types here for clarity.
Bootstrapped and tested on x86_64-unknown-linux-gnu, pushed. PR tree-optimization/110460 * tree-vect-stmts.cc (get_related_vectype_for_scalar_type): Only allow integral, pointer and scalar float type scalar_type. --- gcc/tree-vect-stmts.cc | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/gcc/tree-vect-stmts.cc b/gcc/tree-vect-stmts.cc index d642d3c257f..68faa8ead39 100644 --- a/gcc/tree-vect-stmts.cc +++ b/gcc/tree-vect-stmts.cc @@ -12174,8 +12174,11 @@ get_related_vectype_for_scalar_type (machine_mode prevailing_mode, machine_mode simd_mode; tree vectype; - if (!is_int_mode (TYPE_MODE (scalar_type), &inner_mode) - && !is_float_mode (TYPE_MODE (scalar_type), &inner_mode)) + if ((!INTEGRAL_TYPE_P (scalar_type) + && !POINTER_TYPE_P (scalar_type) + && !SCALAR_FLOAT_TYPE_P (scalar_type)) + || (!is_int_mode (TYPE_MODE (scalar_type), &inner_mode) + && !is_float_mode (TYPE_MODE (scalar_type), &inner_mode))) return NULL_TREE; unsigned int nbytes = GET_MODE_SIZE (inner_mode); -- 2.35.3