Having the "same" vector types with different modes means that we can
end up vectorising a constructor with a different mode from the lhs.
This patch adds a VIEW_CONVERT_EXPR in that case.
This showed up on existing tests when testing with fixed-length
-msve-vector-bits=128.
2020-01-15 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* tree-vect-slp.c (vectorize_slp_instance_root_stmt): Use a
VIEW_CONVERT_EXPR if the vectorized constructor has a diffeent
type from the lhs.
+2020-01-15 Richard Sandiford <richard.sandiford@arm.com>
+
+ * tree-vect-slp.c (vectorize_slp_instance_root_stmt): Use a
+ VIEW_CONVERT_EXPR if the vectorized constructor has a diffeent
+ type from the lhs.
+
2020-01-15 Martin Liska <mliska@suse.cz>
* ipa-profile.c (ipa_profile_read_edge_summary): Do not allow
{
tree vect_lhs = gimple_get_lhs (child_stmt_info->stmt);
tree root_lhs = gimple_get_lhs (instance->root_stmt->stmt);
+ if (!useless_type_conversion_p (TREE_TYPE (root_lhs),
+ TREE_TYPE (vect_lhs)))
+ vect_lhs = build1 (VIEW_CONVERT_EXPR, TREE_TYPE (root_lhs),
+ vect_lhs);
rstmt = gimple_build_assign (root_lhs, vect_lhs);
break;
}