From 09b7993ab6d93716f77c03ff9a9165fa4b579f0d Mon Sep 17 00:00:00 2001 From: Richard Biener Date: Tue, 22 Nov 2022 09:03:53 +0100 Subject: [PATCH] tree-optimization/107672 - avoid vector mode type_for_mode call The following avoids using type_for_mode on vector modes which might not work for all frontends. Instead we look for the inner mode type and use build_vector_type_for_mode instead. PR tree-optimization/107672 * tree-vect-stmts.cc (supportable_widening_operation): Avoid type_for_mode on vector modes. --- gcc/tree-vect-stmts.cc | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/gcc/tree-vect-stmts.cc b/gcc/tree-vect-stmts.cc index bc0ef13..b35b986 100644 --- a/gcc/tree-vect-stmts.cc +++ b/gcc/tree-vect-stmts.cc @@ -12195,9 +12195,15 @@ supportable_widening_operation (vec_info *vinfo, intermediate_type = vect_halve_mask_nunits (prev_type, intermediate_mode); else - intermediate_type - = lang_hooks.types.type_for_mode (intermediate_mode, - TYPE_UNSIGNED (prev_type)); + { + gcc_assert (VECTOR_MODE_P (intermediate_mode)); + tree intermediate_element_type + = lang_hooks.types.type_for_mode (GET_MODE_INNER (intermediate_mode), + TYPE_UNSIGNED (prev_type)); + intermediate_type + = build_vector_type_for_mode (intermediate_element_type, + intermediate_mode); + } if (VECTOR_BOOLEAN_TYPE_P (intermediate_type) && VECTOR_BOOLEAN_TYPE_P (prev_type) -- 2.7.4