// AlignmentPadding bytes to add to align code as requested.
// Alignment is restricted to powers of 2 between 8 and 2048 inclusive.
//
// pc_: current offset in function, in bytes
// p:  a PCALIGN or PCALIGNMAX prog
// ctxt: the context, for current function
// cursym: current function being assembled
// returns number of bytes of padding needed,
// updates minimum alignment for the function.

func parseNotes(reader io.Reader, alignment int, order binary.ByteOrder) ([]elfNote, error) {
	r := bufio.NewReader(reader)

	// padding returns the number of bytes required to pad the given size to an
	// alignment boundary.
	padding := func(size int) int {
		return ((size + (alignment - 1)) &^ (alignment - 1)) - size
	}

	var notes []elfNote
	for {

	FileAttributes uint32

	// Pad out to 8-byte alignment.
	//
	// Without this padding, TestChmod fails due to an argument validation error
	// in SetFileInformationByHandle on windows/386.
	//
	// https://learn.microsoft.com/en-us/cpp/build/reference/zp-struct-member-alignment?view=msvc-170
	// says that “The C/C++ headers in the Windows SDK assume the platform's
	// default alignment is used.” What we see here is padding rather than

		}

		alignment := make(map[int]int)
		if m.deviceHasTopologyAlignment(tc.resource) {
			for d := range allocated {
				if m.allDevices[tc.resource][d].Topology != nil {
					alignment[int(m.allDevices[tc.resource][d].Topology.Nodes[0].ID)]++
				}
			}
		}

		if !reflect.DeepEqual(alignment, tc.expectedAlignment) {

		a.fregs++
	}
	return true
}

// stackAssign reserves space for one value that is "size" bytes
// large with alignment "alignment" to the stack.
//
// Should not be called directly; use addArg instead.
func (a *abiSeq) stackAssign(size, alignment uintptr) {
	a.stackBytes = align(a.stackBytes, alignment)
	a.steps = append(a.steps, abiStep{
		kind:   abiStepStack,

	}
	switch {
	case from.Size() == 2 && uint8(from.Alignment()) == 2:
		return "convT16", types.Types[types.TUINT16], false
	case from.Size() == 4 && uint8(from.Alignment()) == 4 && !from.HasPointers():
		return "convT32", types.Types[types.TUINT32], false
	case from.Size() == 8 && uint8(from.Alignment()) == uint8(types.Types[types.TUINT64].Alignment()) && !from.HasPointers():
		return "convT64", types.Types[types.TUINT64], false

//	e := unsafe.Pointer(uintptr(unsafe.Pointer(&x[0])) + i*unsafe.Sizeof(x[0]))
//
// It is valid both to add and to subtract offsets from a pointer in this way.
// It is also valid to use &^ to round pointers, usually for alignment.
// In all cases, the result must continue to point into the original allocated object.
//
// Unlike in C, it is not valid to advance a pointer just beyond the end of
// its original allocation:
//

	ErrorSMTAlignment = "SMTAlignmentError"
)

// SMTAlignmentError represents an error due to SMT alignment
type SMTAlignmentError struct {
	RequestedCPUs         int
	CpusPerCore           int
	AvailablePhysicalCPUs int
}

func (e SMTAlignmentError) Error() string {
	if e.AvailablePhysicalCPUs > 0 {

						benchmark(b, h, int64(size), int64(align))
					})
				}
			})
		}
	}
}

func benchmark(b *testing.B, h hash.Hash32, n, alignment int64) {
	b.SetBytes(n)
	data := make([]byte, n+alignment)
	data = data[alignment:]
	for i := range data {
		data[i] = byte(i)
	}
	in := make([]byte, 0, h.Size())

	// Warm up
	h.Reset()
	h.Write(data)
	h.Sum(in)

	// that this will need to grow in the future.
	var size int
	var alignment uint32
	switch buildcfg.GOARCH {
	default:
		Exitf("peFile.addInitArray: unsupported GOARCH=%q\n", buildcfg.GOARCH)
	case "386", "arm":
		size = 4
		alignment = IMAGE_SCN_ALIGN_4BYTES
	case "amd64", "arm64":
		size = 8
		alignment = IMAGE_SCN_ALIGN_8BYTES
	}
	sect := f.addSection(".ctors", size, size)