break
		}
		v.reset(OpSliceMake)
		v0 := b.NewValue0(v.Pos, OpLoad, t.Elem().PtrTo())
		v0.AddArg2(ptr, mem)
		v1 := b.NewValue0(v.Pos, OpLoad, typ.Int)
		v2 := b.NewValue0(v.Pos, OpOffPtr, typ.IntPtr)
		v2.AuxInt = int64ToAuxInt(config.PtrSize)
		v2.AddArg(ptr)
		v1.AddArg2(v2, mem)
		v3 := b.NewValue0(v.Pos, OpLoad, typ.Int)
		v4 := b.NewValue0(v.Pos, OpOffPtr, typ.IntPtr)

		v.reset(OpMIPS64LoweredAtomicAnd32)
		v0 := b.NewValue0(v.Pos, OpMIPS64AND, typ.UInt32Ptr)
		v1 := b.NewValue0(v.Pos, OpMIPS64MOVVconst, typ.UInt64)
		v1.AuxInt = int64ToAuxInt(^3)
		v0.AddArg2(v1, ptr)
		v2 := b.NewValue0(v.Pos, OpMIPS64OR, typ.UInt64)
		v3 := b.NewValue0(v.Pos, OpMIPS64SLLV, typ.UInt32)
		v4 := b.NewValue0(v.Pos, OpZeroExt8to32, typ.UInt32)
		v4.AddArg(val)
		v5 := b.NewValue0(v.Pos, OpMIPS64SLLVconst, typ.UInt64)

		mem := v_2
		v.reset(OpRISCV64LoweredAtomicAnd32)
		v0 := b.NewValue0(v.Pos, OpRISCV64ANDI, typ.Uintptr)
		v0.AuxInt = int64ToAuxInt(^3)
		v0.AddArg(ptr)
		v1 := b.NewValue0(v.Pos, OpRISCV64NOT, typ.UInt32)
		v2 := b.NewValue0(v.Pos, OpRISCV64SLL, typ.UInt32)
		v3 := b.NewValue0(v.Pos, OpRISCV64XORI, typ.UInt32)
		v3.AuxInt = int64ToAuxInt(0xff)
		v4 := b.NewValue0(v.Pos, OpZeroExt8to32, typ.UInt32)
		v4.AddArg(val)
		v3.AddArg(v4)

		x := v_0
		y := v_1
		v.reset(OpLOONG64MASKEQZ)
		v0 := b.NewValue0(v.Pos, OpLOONG64SRLV, t)
		v1 := b.NewValue0(v.Pos, OpZeroExt16to64, typ.UInt64)
		v1.AddArg(x)
		v2 := b.NewValue0(v.Pos, OpZeroExt16to64, typ.UInt64)
		v2.AddArg(y)
		v0.AddArg2(v1, v2)
		v3 := b.NewValue0(v.Pos, OpLOONG64SGTU, typ.Bool)
		v4 := b.NewValue0(v.Pos, OpLOONG64MOVVconst, typ.UInt64)
		v4.AuxInt = int64ToAuxInt(64)

		}
		v.reset(OpTrunc32to16)
		v0 := b.NewValue0(v.Pos, OpRsh32Ux64, typ.UInt32)
		v1 := b.NewValue0(v.Pos, OpMul32, typ.UInt32)
		v2 := b.NewValue0(v.Pos, OpConst32, typ.UInt32)
		v2.AuxInt = int32ToAuxInt(int32(1<<15 + (umagic16(c).m+1)/2))
		v3 := b.NewValue0(v.Pos, OpRsh32Ux64, typ.UInt32)
		v4 := b.NewValue0(v.Pos, OpZeroExt16to32, typ.UInt32)
		v4.AddArg(x)
		v5 := b.NewValue0(v.Pos, OpConst64, typ.UInt64)

	for {
		x := v_0
		y := v_1
		v.reset(OpARMSUB)
		v0 := b.NewValue0(v.Pos, OpARMXOR, typ.UInt32)
		v1 := b.NewValue0(v.Pos, OpSelect0, typ.UInt32)
		v2 := b.NewValue0(v.Pos, OpARMCALLudiv, types.NewTuple(typ.UInt32, typ.UInt32))
		v3 := b.NewValue0(v.Pos, OpARMSUB, typ.UInt32)
		v4 := b.NewValue0(v.Pos, OpARMXOR, typ.UInt32)
		v5 := b.NewValue0(v.Pos, OpSignmask, typ.Int32)
		v5.AddArg(x)
		v4.AddArg2(x, v5)

		v.AuxInt = int32ToAuxInt(2)
		v0 := b.NewValue0(v.Pos, OpPPC64SLD, t)
		v1 := b.NewValue0(v.Pos, OpPPC64MOVHZreg, typ.Int64)
		v1.AddArg(x)
		v0.AddArg2(v1, y)
		v2 := b.NewValue0(v.Pos, OpPPC64MOVDconst, typ.Int64)
		v2.AuxInt = int64ToAuxInt(0)
		v3 := b.NewValue0(v.Pos, OpPPC64CMPconst, types.TypeFlags)
		v3.AuxInt = int64ToAuxInt(0)
		v4 := b.NewValue0(v.Pos, OpPPC64ANDconst, typ.Int)

			if !(isPowerOfTwo64(c+1) && int32(c) >= 7) {
				continue
			}
			v.reset(OpARM64MOVWUreg)
			v0 := b.NewValue0(v.Pos, OpARM64NEG, x.Type)
			v1 := b.NewValue0(v.Pos, OpARM64ADDshiftLL, x.Type)
			v1.AuxInt = int64ToAuxInt(log64(c + 1))
			v2 := b.NewValue0(v.Pos, OpARM64NEG, x.Type)
			v2.AddArg(x)
			v1.AddArg2(v2, x)
			v0.AddArg(v1)
			v.AddArg(v0)
			return true
		}

		v.reset(OpS390XSUB)
		v0 := b.NewValue0(v.Pos, OpS390XMOVDconst, typ.UInt64)
		v0.AuxInt = int64ToAuxInt(64)
		v1 := b.NewValue0(v.Pos, OpS390XFLOGR, typ.UInt64)
		v2 := b.NewValue0(v.Pos, OpS390XMOVWZreg, typ.UInt64)
		v3 := b.NewValue0(v.Pos, OpS390XANDW, t)
		v4 := b.NewValue0(v.Pos, OpS390XSUBWconst, t)
		v4.AuxInt = int32ToAuxInt(1)
		v4.AddArg(x)
		v5 := b.NewValue0(v.Pos, OpS390XNOTW, t)
		v5.AddArg(x)

		v.Aux = symToAux(dstSym)
		v0 := b.NewValue0(v_1.Pos, OpAMD64MOVQconst, typ.UInt64)
		v0.AuxInt = int64ToAuxInt(int64(read64(srcSym, int64(srcOff)+8, config.ctxt.Arch.ByteOrder)))
		v1 := b.NewValue0(v_1.Pos, OpAMD64MOVQstore, types.TypeMem)
		v1.AuxInt = int32ToAuxInt(dstOff)
		v1.Aux = symToAux(dstSym)
		v2 := b.NewValue0(v_1.Pos, OpAMD64MOVQconst, typ.UInt64)