return
	}
	filledTypes[t] = true
	defer delete(filledTypes, t)

	// if nil, populate pointers with a zero-value instance of the underlying type
	if t.Kind() == reflect.Pointer && v.IsNil() {
		if v.CanSet() {
			v.Set(reflect.New(t.Elem()))
		} else if v.IsNil() {
			panic(fmt.Errorf("unsettable nil pointer of type %v in field %s", t, dataString))
		}
	}

	if f, ok := fillFuncs[t]; ok {

// Previously, cmd/compile would rewrite
//
//     check(unsafe.Pointer(testMeth(1).Pointer()), unsafe.Pointer(testMeth(2).Pointer()))
//
// to
//
//     var autotmp_1 uintptr = testMeth(1).Pointer()
//     var autotmp_2 uintptr = testMeth(2).Pointer()
//     check(unsafe.Pointer(autotmp_1), unsafe.Pointer(autotmp_2))
//
// However, that means autotmp_1 is the only reference to the int

	full     *traceRegionAllocBlock
}

// traceRegionAllocBlock is a block in traceRegionAlloc.
//
// traceRegionAllocBlock is allocated from non-GC'd memory, so it must not
// contain heap pointers. Writes to pointers to traceRegionAllocBlocks do
// not need write barriers.
type traceRegionAllocBlock struct {
	_ sys.NotInHeap
	traceRegionAllocBlockHeader
	data [traceRegionAllocBlockData]byte
}

//go:noescape
func resolveNameOff(ptrInModule unsafe.Pointer, off int32) unsafe.Pointer

// resolveTypeOff resolves an *rtype offset from a base type.
// The (*rtype).typeOff method is a convenience wrapper for this function.
// Implemented in the runtime package.
//
//go:noescape
func resolveTypeOff(rtype unsafe.Pointer, off int32) unsafe.Pointer

// resolveTextOff resolves a function pointer offset from a base type.

// conversions of uintptr to unsafe.Pointer.
//
// # Analyzer unsafeptr
//
// unsafeptr: check for invalid conversions of uintptr to unsafe.Pointer
//
// The unsafeptr analyzer reports likely incorrect uses of unsafe.Pointer
// to convert integers to pointers. A conversion from uintptr to
// unsafe.Pointer is invalid if it implies that there is a uintptr-typed
// word in memory that holds a pointer value, because that word will be

// Verify that pointers and interface types cannot be method receivers.
// Does not compile.

package main

type T struct {
	a int
}
type P *T
type P1 *T

func (p P) val() int   { return 1 } // ERROR "receiver.* pointer|invalid pointer or interface receiver|invalid receiver"
func (p *P1) val() int { return 1 } // ERROR "receiver.* pointer|invalid pointer or interface receiver|invalid receiver"

// Unmarshal parses the JSON-encoded data and stores the result
// in the value pointed to by v. If v is nil or not a pointer,
// Unmarshal returns an [InvalidUnmarshalError].
//
// Unmarshal uses the inverse of the encodings that
// [Marshal] uses, allocating maps, slices, and pointers as necessary,
// with the following additional rules:
//
// To unmarshal JSON into a pointer, Unmarshal first handles the case of

// between the memmove and the execution of the barriers.
// The caller is also responsible for cgo pointer checks if this
// may be writing Go pointers into non-Go memory.
//
// Pointer data is not maintained for allocations containing
// no pointers at all; any caller of bulkBarrierPreWrite must first
// make sure the underlying allocation contains pointers, usually
// by checking typ.PtrBytes.
//

// 1. `new(T)`, `make([]T)`, `append([]T, ...)` and implicit heap
// allocation of T are disallowed. (Though implicit allocations are
// disallowed in the runtime anyway.)
//
// 2. A pointer to a regular type (other than `unsafe.Pointer`) cannot be
// converted to a pointer to a not-in-heap type, even if they have the
// same underlying type.
//
// 3. Any type that containing a not-in-heap type is itself considered as not-in-heap.
//

//go:nosplit
//go:nocheckptr
func NoEscape(p unsafe.Pointer) unsafe.Pointer {
	x := uintptr(p)
	return unsafe.Pointer(x ^ 0)
}

var alwaysFalse bool
var escapeSink any

// Escape forces any pointers in x to escape to the heap.
func Escape[T any](x T) T {
	if alwaysFalse {
		escapeSink = x
	}
	return x