opregreg(s, v.Op.Asm(), v.Reg0(), r2)
	case ssa.OpS390XADDCconst:
		r1 := v.Reg0()
		r3 := v.Args[0].Reg()
		i2 := int64(int16(v.AuxInt))
		opregregimm(s, v.Op.Asm(), r1, r3, i2)
	// 2-address opcode arithmetic
	case ssa.OpS390XMULLD, ssa.OpS390XMULLW,
		ssa.OpS390XMULHD, ssa.OpS390XMULHDU,
		ssa.OpS390XFMULS, ssa.OpS390XFMUL, ssa.OpS390XFDIVS, ssa.OpS390XFDIV:
		opregreg(s, v.Op.Asm(), v.Reg(), v.Args[1].Reg())

// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package profile

import (
	"errors"
	"fmt"
	"sort"
)

func (p *Profile) decoder() []decoder {
	return profileDecoder
}

// preEncode populates the unexported fields to be used by encode
// (with suffix X) from the corresponding exported fields. The

// followed by no value.
func (enc *Encoder) encodeInterface(b *encBuffer, iv reflect.Value) {
	// Gobs can encode nil interface values but not typed interface
	// values holding nil pointers, since nil pointers point to no value.
	elem := iv.Elem()
	if elem.Kind() == reflect.Pointer && elem.IsNil() {
		errorf("gob: cannot encode nil pointer of type %s inside interface", iv.Elem().Type())
	}
	state := enc.newEncoderState(b)

package profile

import (
	"errors"
	"sort"
	"strings"
)

func (p *Profile) decoder() []decoder {
	return profileDecoder
}

// preEncode populates the unexported fields to be used by encode
// (with suffix X) from the corresponding exported fields. The
// exported fields are cleared up to facilitate testing.
func (p *Profile) preEncode() {
	strings := make(map[string]int)
	addString(strings, "")

//
// Otherwise, Marshal uses the following type-dependent default encodings:
//
// Boolean values encode as JSON booleans.
//
// Floating point, integer, and [Number] values encode as JSON numbers.
// NaN and +/-Inf values will return an [UnsupportedValueError].
//
// String values encode as JSON strings coerced to valid UTF-8,
// replacing invalid bytes with the Unicode replacement rune.

// destination. It's used when calling Decode with a nil value.
func (dec *Decoder) ignoreSingle(engine *decEngine) {
	state := dec.newDecoderState(&dec.buf)
	defer dec.freeDecoderState(state)
	state.fieldnum = singletonField
	delta := int(state.decodeUint())
	if delta != 0 {
		errorf("decode: corrupted data: non-zero delta for singleton")
	}
	instr := &engine.instr[singletonField]

    }

    def "can encode and decode a small long"() {
        expect:
        def bytesA = encode { Encoder encoder ->
            encoder.writeSmallLong(a as long)
        }
        def bytesB = encode { Encoder encoder ->
            encoder.writeSmallLong(b as long)
        }
        decode(bytesA) { Decoder decoder ->
            assert decoder.readSmallLong() == a
        }
        decode(bytesB) { Decoder decoder ->

		B int
	}
	var b bytes.Buffer
	NewEncoder(&b).Encode(Test{"one", 1})

	var result, result2 Test
	dec := NewDecoder(&b)
	err := dec.Decode(&result)
	if err != nil {
		t.Errorf("decode: unexpected error %v", err)
	}

	b.Reset()
	NewEncoder(&b).Encode(Test{"two", 2})
	err = dec.Decode(&result2)
	if err == nil {
		t.Errorf("decode: expected duplicate type error, got nil")

	b.Reset()
	err = enc.Encode(GobTest0{17, &ByteStruct{'X'}})
	if err != nil {
		t.Fatal("encode error:", err)
	}
	y := new(GobTest1)
	err = dec.Decode(y)
	if err != nil {
		t.Fatal("decode error:", err)
	}
	if y.G.s != "XYZ" {
		t.Fatalf("expected `XYZ` got %q", y.G.s)
	}
}

// Test that we can encode a value and decode into a pointer.

      name = "BOOLEAN",
      tagClass = DerHeader.TAG_CLASS_UNIVERSAL,
      tag = 1L,
      codec =
        object : BasicDerAdapter.Codec<Boolean> {
          override fun decode(reader: DerReader): Boolean = reader.readBoolean()

          override fun encode(
            writer: DerWriter,
            value: Boolean,
          ) = writer.writeBoolean(value)
        },
    )

  val INTEGER_AS_LONG =
    BasicDerAdapter(