[RISCV] Add missing constraints for vwsll

[4vtomat]

Summary

Add missing early clobber and widen constraints for vector crypto instruction: vwsll

[craig.topper]

llvm/lib/Target/RISCV/RISCVInstrInfoZvk.td

142

I don't think we usually indent after let when there aren't curly braces involved.

[4vtomat]

Resolved Craig's comment.

[craig.topper]

Can you add assembler tests for this?

[4vtomat]

Resolved Craig's comment:

• Added invalid instruction test case for vwsll

[kito-cheng]

LGTM

llvm/lib/Target/RISCV/RISCVInstrInfoZvk.td

let Predicates = [HasStdExtZvbb] in {
   def  VBREV8_V : VALUVs2<0b010010, 0b01000, OPMVV, "vbrev8.v">;
   def  VBREV_V  : VALUVs2<0b010010, 0b01010, OPMVV, "vbrev.v">;
   def  VCLZ_V   : VALUVs2<0b010010, 0b01100, OPMVV, "vclz.v">;
   def  VCPOP_V  : VALUVs2<0b010010, 0b01110, OPMVV, "vcpop.v">;
   def  VCTZ_V   : VALUVs2<0b010010, 0b01101, OPMVV, "vctz.v">;
   def  VREV8_V  : VALUVs2<0b010010, 0b01001, OPMVV, "vrev8.v">;
   defm VROL_V   : VALU_IV_V_X<"vrol", 0b010101>;
   defm VROR_V   : VROR_IV_V_X_I<"vror", 0b010100>;
+  let Constraints = "@earlyclobber $vd", RVVConstraint = WidenV in
     defm VWSLL_V  : VALU_IV_V_X_I<"vwsll", 0b110101, uimm5>;
 } // Predicates = [HasStdExtZvbb]
 
 let Predicates = [HasStdExtZvbc] in {
   defm VCLMUL_V  : VCLMUL_MV_V_X<"vclmul", 0b001100>;
   defm VCLMULH_V : VCLMUL_MV_V_X<"vclmulh", 0b001101>;
 } // Predicates = [HasStdExtZvbc]
 
 let Predicates = [HasStdExtZvkg], RVVConstraint = NoConstraint in {