Hi,

This patch fixes an issue introduced by 
g:2f482a07365d9f4a94a56edd13b7f01b8f78b5a0, where a subtype was beeing 
passed to vect_widened_op_tree, when no subtype was to be used. This 
lead to an errorneous use of IFN_VEC_WIDEN_MINUS.

gcc/ChangeLog:

         * tree-vect-patterns.cc (vect_recog_widen_op_pattern): Don't 
pass subtype to
         vect_widened_op_tree and remove subtype parameter.
         (vect_recog_widen_plus_pattern): Remove subtype parameter and 
dont pass to call to
         vect_recog_widen_op_pattern.
         (vect_recog_widen_minus_pattern): Likewise.

gcc/testsuite/ChangeLog:

         * gcc.dg/vect/pr110142.c: New test.