[Bug target/115931] New: mips: vec_pack_usat_m's pattern is wrong at gcc/config/mips/loongson-mmi.md:167

[lin1.hu at intel dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115931

            Bug ID: 115931
           Summary: mips: vec_pack_usat_m's pattern is wrong at
                    gcc/config/mips/loongson-mmi.md:167
           Product: gcc
           Version: 15.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: lin1.hu at intel dot com
  Target Milestone: ---

If I understand correctly. mips's packuswh(vec_pack_usat_<mode>) means convert
signed integer to unsigned integer with unsigned saturation. But gcc's
us_saturate means unsigned integer convert unsigned integer with unsigned
saturation. So the pattern should use UNSPEC.