[Bug target/115981] [14/15 Regression] Redundant vmovaps to itself after vmovups since r14-537

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115981

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 58786
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=58786&action=edit
gcc15-pr115981.patch

Untested fix.  As since that commit it checks swap_commutative_operands_p:
1) CONST_VECTOR I think has commutative_operand_precedence -4
2) REG has commutative_operand_precedence -1 or -2
3) SUBREG of object has commutative_operand_precedence -3
4) VEC_DUPLICATE has commutative_operand_precedence 0
Which means the VEC_DUPLICATE operand will always come first and whatever
matches reg_or_0_operand will always come second, i.e. exactly not the order in
the pattern, so we don't need to add another one, can just change order of this
one.