// with the following instructions:
//
//	00000000: stop
//	0nnnnnnn: emit n bits copied from the next (n+7)/8 bytes
//	10000000 n c: repeat the previous n bits c times; n, c are varints
//	1nnnnnnn c: repeat the previous n bits c times; c is a varint

// runGCProg returns the number of 1-bit entries written to memory.
func runGCProg(prog, dst *byte) uintptr {
	dstStart := dst

	// Bits waiting to be written to memory.

	unlock(&sched.gFree.lock)
}

// markrootSpans marks roots for one shard of markArenas.
//
//go:nowritebarrier
func markrootSpans(gcw *gcWork, shard int) {
	// Objects with finalizers have two GC-related invariants:
	//
	// 1) Everything reachable from the object must be marked.
	// This ensures that when we pass the object to its finalizer,
	// everything the finalizer can reach will be retained.
	//

   * bits.
   *
   * @param h hash code
   */
  static int rehash(int h) {
    // Spread bits to regularize both segment and index locations,
    // using variant of single-word Wang/Jenkins hash.
    // TODO(kevinb): use Hashing/move this to Hashing?
    h += (h << 15) ^ 0xffffcd7d;
    h ^= (h >>> 10);
    h += (h << 3);
    h ^= (h >>> 6);

Creates a dataset that invokes its 'next' region to generate elements. Conceptually,
within MLIR, we treat this op as if it fills a buffer with all the results right away,
and those results are then passed (through the variant tensor result) to
MakeIterator / IteratorGetNext. Note that the actual TF implementation differs: It
generates the next element just in time, during IteratorGetNext.

init_extra_args: Additional arguments to pass to 'init'.

// example.com/foo might be found in module example.com and also in module
// example.com/foo, and those modules may have independent v0.1.0 tags — so the
// input 'example.com/foo@v0.1.0' could syntactically refer to the variant of
// the package loaded from either module! (See mod_get_ambiguous_pkg.txt.)
// If the argument is ambiguous, the user can often disambiguate by specifying
// explicit versions for *all* of the potential module paths involved.

   * bits.
   *
   * @param h hash code
   */
  static int rehash(int h) {
    // Spread bits to regularize both segment and index locations,
    // using variant of single-word Wang/Jenkins hash.
    // TODO(kevinb): use Hashing/move this to Hashing?
    h += (h << 15) ^ 0xffffcd7d;
    h ^= (h >>> 10);
    h += (h << 3);
    h ^= (h >>> 6);

//
// Do not remove or change the type signature.
// See go.dev/issue/67401.
//
//go:linkname reflect_makemap reflect.makemap
func reflect_makemap(t *maptype, cap int) *hmap {
	// Check invariants and reflects math.
	if t.Key.Equal == nil {
		throw("runtime.reflect_makemap: unsupported map key type")
	}
	if t.Key.Size_ > abi.MapMaxKeyBytes && (!t.IndirectKey() || t.KeySize != uint8(goarch.PtrSize)) ||

// Non-preemptible because it is used by write barriers.
//
//go:nowritebarrier
//go:nosplit
func inheap(b uintptr) bool {
	return spanOfHeap(b) != nil
}

// inHeapOrStack is a variant of inheap that returns true for pointers
// into any allocated heap span.
//
//go:nowritebarrier
//go:nosplit
func inHeapOrStack(b uintptr) bool {
	s := spanOf(b)
	if s == nil || b < s.base() {

			//
			// (We will filter out the extra tests explicitly in computePatternAll.)
			wantTest = true

		case ld.allPatternIsRoot && ld.allClosesOverTests && new.has(pkgInAll):
			// This variant of the "all" pattern includes imports of tests of every
			// package that is itself in "all", and pkg is in "all", so its test is
			// also in "all" (as above).
			wantTest = true

		int64) (relocatedOffset int64, nExtReloc int, ok bool)
	// Archrelocvariant is a second arch-specific hook used for
	// relocation processing; it handles relocations where r.Type is
	// insufficient to describe the relocation (r.Variant !=
	// sym.RV_NONE). Here "rel" is the relocation being applied, "sym"
	// is the symbol containing the chunk of data to which the
	// relocation applies, and "off" is the contents of the