minor cleanup

Author: TIHan

src/coreclr/jit/hwintrinsiccodegenarm64.cpp

@@ -808,17 +808,10 @@ void CodeGen::genHWIntrinsic(GenTreeHWIntrinsic* node)
                     else if (HWIntrinsicInfo::IsScalable(intrin.id))
                     {
                         assert(!node->IsEmbMaskOp());
-                        if (HWIntrinsicInfo::IsExplicitMaskedOperation(intrin.id))
-                        {
-                            GetEmitter()->emitIns_R_R_R(ins, emitSize, targetReg, op1Reg, op2Reg, opt);
-                        }
-                        else
-                        {
-                            // This generates an unpredicated version
-                            // Implicitly predicated should be taken care above `intrin.op2->IsEmbMaskOp()`
-                            GetEmitter()->emitIns_R_R_R(ins, emitSize, targetReg, op1Reg, op2Reg, opt,
-                                                        INS_SCALABLE_OPTS_UNPREDICATED);
-                        }
+                        // This generates an unpredicated version
+                        // Predicated should be taken care above `intrin.op2->IsEmbMaskOp()`
+                        GetEmitter()->emitIns_R_R_R(ins, emitSize, targetReg, op1Reg, op2Reg, opt,
+                                                    INS_SCALABLE_OPTS_UNPREDICATED);
                     }
                     else if (isRMW)
                     {
@@ -1496,7 +1489,7 @@ void CodeGen::genHWIntrinsic(GenTreeHWIntrinsic* node)
             {
                 assert(intrin.op3->IsIntegralConst());
                 GetEmitter()->emitIns_PRFOP_R_R_I(ins, emitSize, (insSvePrfop)intrin.op3->AsIntConCommon()->IconValue(),
-                                                  op1Reg, op2Reg, 0, INS_OPTS_NONE);
+                                                  op1Reg, op2Reg, 0);
                 break;
             }
 
@@ -1856,18 +1849,11 @@ void CodeGen::genHWIntrinsic(GenTreeHWIntrinsic* node)
                 break;
             }
 
-            case NI_Sve_ReverseElement:
-                // Use non-predicated version explicitly
-                GetEmitter()->emitIns_R_R(ins, emitSize, targetReg, op1Reg, opt, INS_SCALABLE_OPTS_UNPREDICATED);
-                break;
-
             case NI_Sve_StoreNarrowing:
                 opt = emitter::optGetSveInsOpt(emitTypeSize(intrin.baseType));
                 GetEmitter()->emitIns_R_R_R_I(ins, emitSize, op3Reg, op1Reg, op2Reg, 0, opt);
                 break;
 
-            case NI_Sve_TransposeEven:
-            case NI_Sve_TransposeOdd:
             case NI_Sve_UnzipEven:
             case NI_Sve_UnzipOdd:
             case NI_Sve_ZipHigh:
@@ -1951,33 +1937,6 @@ void CodeGen::genHWIntrinsic(GenTreeHWIntrinsic* node)
                 break;
             }
 
-            case NI_Sve_SaturatingDecrementByActiveElementCount:
-            case NI_Sve_SaturatingIncrementByActiveElementCount:
-            {
-                // RMW semantics
-                if (targetReg != op1Reg)
-                {
-                    assert(targetReg != op2Reg);
-                    GetEmitter()->emitIns_Mov(INS_mov, emitTypeSize(node), targetReg, op1Reg, /* canSkip */ true);
-                }
-
-                // Switch instruction if arg1 is unsigned.
-                if (varTypeIsUnsigned(node->GetAuxiliaryType()))
-                {
-                    ins =
-                        (intrin.id == NI_Sve_SaturatingDecrementByActiveElementCount) ? INS_sve_uqdecp : INS_sve_uqincp;
-                }
-
-                // If this is the scalar variant, get the correct size.
-                if (!varTypeIsSIMD(node->gtType))
-                {
-                    emitSize = emitActualTypeSize(intrin.op1);
-                }
-
-                GetEmitter()->emitIns_R_R(ins, emitSize, targetReg, op2Reg, opt);
-                break;
-            }
-
             default:
                 unreached();
         }