[llvm] [RISCV][P-ext] Remove VXSAT from SHL/SHLR/SHA/SHAR. Add to PSAS and PSSA. (PR #195488)

[Brandon Wu via llvm-commits]

================
@@ -1101,8 +1097,10 @@ let Predicates = [HasStdExtP] in {
   def PAS_HX   : RVPBinary_rr<0b0000, 0b00, 0b110, "pas.hx">;
   def PSA_HX   : RVPBinary_rr<0b0000, 0b10, 0b110, "psa.hx">;
 
+  let Defs = [VXSAT] in {
   def PSAS_HX  : RVPBinary_rr<0b0010, 0b00, 0b110, "psas.hx">;
   def PSSA_HX  : RVPBinary_rr<0b0010, 0b10, 0b110, "pssa.hx">;
+  }
----------------
4vtomat wrote:

```suggestion
  // Defs = [VXSAT]
```

https://github.com/llvm/llvm-project/pull/195488