http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50162
Richard Guenther <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED CC| |irar at gcc dot gnu.org AssignedTo|unassigned at gcc dot |rguenth at gcc dot gnu.org |gnu.org | --- Comment #3 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-08-23 08:52:26 UTC --- Fix: Index: gcc/tree-vect-stmts.c =================================================================== --- gcc/tree-vect-stmts.c (revision 177983) +++ gcc/tree-vect-stmts.c (working copy) @@ -1697,7 +1697,7 @@ vectorizable_call (gimple stmt, gimple_s } else { - vec_oprnd1 = gimple_call_arg (new_stmt, 2*i); + vec_oprnd1 = gimple_call_arg (new_stmt, 2*i + 1); vec_oprnd0 = vect_get_vec_def_for_stmt_copy (dt[i], vec_oprnd1); vec_oprnd1 Ira, does that make sense? I suppose we replace foo (a, b, c) with foo_vec_pack (a1, a2, b1, b2, c1, c2), etc. And we want the second argument from each pair from the last stmt? (I wonder if all this even works for nargs != 1).