[Bug tree-optimization/115228] New: Suspicious code in tree-vect-data-refs.cc

[fxue at os dot amperecomputing.com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115228

            Bug ID: 115228
           Summary: Suspicious code in tree-vect-data-refs.cc
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: fxue at os dot amperecomputing.com
  Target Milestone: ---

Does the below condition code miss the case of "SAD_EXPR", in function
vect_get_smallest_scalar_type():

  if (assign)
    {
      scalar_type = TREE_TYPE (gimple_assign_lhs (assign));
      if (gimple_assign_cast_p (assign)
          || gimple_assign_rhs_code (assign) == DOT_PROD_EXPR
          || gimple_assign_rhs_code (assign) == WIDEN_SUM_EXPR
          || gimple_assign_rhs_code (assign) == WIDEN_MULT_EXPR
          || gimple_assign_rhs_code (assign) == WIDEN_LSHIFT_EXPR
          || gimple_assign_rhs_code (assign) == FLOAT_EXPR)