t.Errorf("read Reloc2 mismatch: got %v %v %v %v %v", r2.Off(), r2.Siz(), r2.Type(), r2.Add(), r2.Sym())
	}

	b = b[RelocSize:]
	var a2 Aux
	a2.fromBytes(b)
	if a2.Type() != AuxFuncInfo || a2.Sym() != (SymRef{33, 44}) {
		t.Errorf("read Aux2 mismatch: got %v %v", a2.Type(), a2.Sym())
	}
}

var issue41621prolog = `
package main
var lines = []string{
`

var issue41621epilog = `
}

			audToCheck:  []string{"aud1"},
			audExpected: []string{"aud1", "aud2"},
		},
		{
			name:        "audience is NOT in the expected set",
			expectRet:   false,
			audToCheck:  []string{"aud3"},
			audExpected: []string{"aud1", "aud2"},
		},
		{
			name:        "one of the audiences is in the expected set",
			expectRet:   true,
			audToCheck:  []string{"aud1", "aud3"},

	// skip over argv, envp to get to auxv
	for argv_index(argv, n) != nil {
		n++
	}

	// skip NULL separator
	n++

	auxvp := (*[1 << 28]uintptr)(add(unsafe.Pointer(argv), uintptr(n)*goarch.PtrSize))
	pairs := sysauxv(auxvp[:])
	auxv = auxvp[: pairs*2 : pairs*2]
}

const (
	_AT_NULL   = 0
	_AT_PAGESZ = 6
)

func sysauxv(auxv []uintptr) (pairs int) {
	var i int

	_AT_HWCAP  = 16
	_AT_HWCAP2 = 26

	procAuxv = "/proc/self/auxv"

	uintSize = int(32 << (^uint(0) >> 63))
)

// For those platforms don't have a 'cpuid' equivalent we use HWCAP/HWCAP2
// These are initialized in cpu_$GOARCH.go
// and should not be changed after they are initialized.
var hwCap uint
var hwCap2 uint

func readHWCAP() error {
	// For Go 1.21+, get auxv from the Go runtime.
	if a := getAuxv(); len(a) > 0 {

	for {
		vo := auxIntToValAndOff(v.AuxInt)
		sym := auxToSym(v.Aux)
		ptr := v_0
		mem := v_1
		v.reset(Op386CMPBconst)
		v.AuxInt = int8ToAuxInt(vo.Val8())
		v0 := b.NewValue0(v.Pos, Op386MOVBload, typ.UInt8)
		v0.AuxInt = int32ToAuxInt(vo.Off())
		v0.Aux = symToAux(sym)
		v0.AddArg2(ptr, mem)
		v.AddArg(v0)
		return true
	}
}

			naux = int(sym.NumberOfAuxSymbols)
		} else {
			// Read an aux symbol. At the moment we assume all
			// aux symbols are format 5 (obviously this doesn't always
			// hold; more cases will be needed below if more aux formats
			// are supported in the future).
			naux--
			aux := (*COFFSymbolAuxFormat5)(unsafe.Pointer(&sym))
			err = binary.Read(r, binary.LittleEndian, aux)
			if err != nil {

			return tc
		}
	}

	if v.Aux != w.Aux {
		if v.Aux == nil {
			return types.CMPlt
		}
		if w.Aux == nil {
			return types.CMPgt
		}
		return lt2Cmp(auxIDs[v.Aux] < auxIDs[w.Aux])
	}

	return types.CMPeq
}

// Sort values to make the initial partition.
type sortvalues struct {
	a      []*Value // array of values
	auxIDs auxmap   // aux -> aux ID map
}

// This tests for a bug found when partitioning, but not sorting by the Aux value.
func TestCSEAuxPartitionBug(t *testing.T) {
	c := testConfig(t)
	arg1Aux := &tstAux{"arg1-aux"}
	arg2Aux := &tstAux{"arg2-aux"}
	arg3Aux := &tstAux{"arg3-aux"}
	a := c.Temp(c.config.Types.Int8.PtrTo())

	// construct lots of values with args that have aux values and place
	// them in an order that triggers the bug
	fun := c.Fun("entry",

	// argv as argc string pointers followed by a NULL, envv as a
	// sequence of string pointers followed by a NULL, and auxv.
	// The TLS pointer should be initialized to 0.
	//
	// In an ELFv2 compliant dynamically linked binary, R3 contains argc,
	// R4 contains argv, R5 contains envp, R6 contains auxv, and R13
	// contains the TLS pointer.
	//
	// When loading via glibc, the first doubleword on the stack points

TEXT _main<>(SB),NOSPLIT,$-8
	// In a statically linked binary, the stack contains argc,
	// argv as argc string pointers followed by a NULL, envv as a
	// sequence of string pointers followed by a NULL, and auxv.
	// There is no TLS base pointer.
	//
	// TODO(austin): Support ABI v1 dynamic linking entry point
	XOR	R0, R0 // Note, newer kernels may not always set R0 to 0.
	MOVD	$runtime·rt0_go(SB), R12
	MOVD	R12, CTR