[gcc(refs/vendors/riscv/heads/gcc-15-with-riscv-opts)] RISC-V: Fix incorrect op of vwaddu/vwsubu wx combine

[Jeff Law]

https://gcc.gnu.org/g:95f006753dd0731dcba37b6001c7fbe4fa85fbd7

commit 95f006753dd0731dcba37b6001c7fbe4fa85fbd7
Author: Pan Li <pan2.li@intel.com>
Date:   Tue Oct 14 10:33:08 2025 +0800

    RISC-V: Fix incorrect op of vwaddu/vwsubu wx combine
    
    The vwaddu and vwsubu combine pattern should take plus/minus
    instead of any_widen_binop.  This PATCH would like to fix it.
    
    The below test suites are passed for this patch series.
    * The rv64gcv fully regression test.
    
    gcc/ChangeLog:
    
            * config/riscv/autovec-opt.md: Take concrete op instead
            of any_widen_binop for vwaddu/vwsubu wx combine.
    
    Signed-off-by: Pan Li <pan2.li@intel.com>
    (cherry picked from commit d58a8e37f04e727857391ff22f3924cb97f4d168)

Diff:
---
 gcc/config/riscv/autovec-opt.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/gcc/config/riscv/autovec-opt.md b/gcc/config/riscv/autovec-opt.md
index 3d6e0a19c8a5..d2705cf0fb92 100644
--- a/gcc/config/riscv/autovec-opt.md
+++ b/gcc/config/riscv/autovec-opt.md
@@ -1913,7 +1913,7 @@
 
 (define_insn_and_split "*widen_waddu_wx_<mode>"
  [(set (match_operand:VWEXTI_D       0 "register_operand")
-       (any_widen_binop:VWEXTI_D
+       (plus:VWEXTI_D
 	 (vec_duplicate:VWEXTI_D
 	   (any_extend:<VEL>
 	     (match_operand:<VSUBEL> 2 "register_operand")))
@@ -1933,7 +1933,7 @@
 
 (define_insn_and_split "*widen_wsubu_wx_<mode>"
  [(set (match_operand:VWEXTI_D       0 "register_operand")
-       (any_widen_binop:VWEXTI_D
+       (minus:VWEXTI_D
 	 (match_operand:VWEXTI_D     1 "register_operand")
 	 (vec_duplicate:VWEXTI_D
 	   (any_extend:<VEL>