// produced by the inliner will wind up in the vmap[0] entry.
	vmap := make(map[int32][]*dwarf.Var)

	// Now walk the dwarf vars and partition them based on whether they
	// were produced by the inliner (dwv.InlIndex > 0) or were original
	// vars/params from the function (dwv.InlIndex == 0).
	for _, dwv := range dwVars {

		vmap[dwv.InlIndex] = append(vmap[dwv.InlIndex], dwv)

	if !tag.FixCase(form, key) {
		return 0, ErrSyntax
	}
	i := idx.Index(key)
	if i == -1 {
		return 0, NewValueError(key)
	}
	return i, nil
}

func searchUint(imap []uint16, key uint16) int {
	return sort.Search(len(imap), func(i int) bool {
		return imap[i] >= key
	})
}

type Language uint16

// getLangID returns the langID of s if s is a canonical subtag
// or langUnknown if s is not a canonical subtag.

		top += minTopHash
	}
	return top
}

func evacuated(b *bmap) bool {
	h := b.tophash[0]
	return h > emptyOne && h < minTopHash
}

func (b *bmap) overflow(t *maptype) *bmap {
	return *(**bmap)(add(unsafe.Pointer(b), uintptr(t.BucketSize)-goarch.PtrSize))
}

func (b *bmap) setoverflow(t *maptype, ovf *bmap) {
	*(**bmap)(add(unsafe.Pointer(b), uintptr(t.BucketSize)-goarch.PtrSize)) = ovf
}

			return ti.(Type)
		}
	}

	// Make a map type.
	// Note: flag values must match those used in the TMAP case
	// in ../cmd/compile/internal/reflectdata/reflect.go:writeType.
	var imap any = (map[unsafe.Pointer]unsafe.Pointer)(nil)
	mt := **(**mapType)(unsafe.Pointer(&imap))
	mt.Str = resolveReflectName(newName(s, "", false, false))
	mt.TFlag = 0

package runtime

import "unsafe"

// mmap calls the mmap system call. It is implemented in assembly.
// We only pass the lower 32 bits of file offset to the
// assembly routine; the higher bits (if required), should be provided
// by the assembly routine as 0.
// The err result is an OS error code such as ENOMEM.
func mmap(addr unsafe.Pointer, n uintptr, prot, flags, fd int32, off uint32) (p unsafe.Pointer, err int)

        map.putAll(m);
        assertThat(map.get("THREE"), is("3"));
        assertThat(map.get("FOUR"), is("4"));
        assertThat(map.size(), is(4));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testPerformance() throws Exception {
        for (int j = 0; j < 3; ++j) {
            final int num = 100000;
            final Map<String, String> hmap = new HashMap<String, String>();

)

func mapaccess1_fast64(t *maptype, h *hmap, key uint64) unsafe.Pointer {
	if raceenabled && h != nil {
		callerpc := getcallerpc()
		racereadpc(unsafe.Pointer(h), callerpc, abi.FuncPCABIInternal(mapaccess1_fast64))
	}
	if h == nil || h.count == 0 {
		return unsafe.Pointer(&zeroVal[0])
	}
	if h.flags&hashWriting != 0 {
		fatal("concurrent map read and map write")
	}
	var b *bmap
	if h.B == 0 {

        assertThat(map.containsKey("3"), is(not(true)));
        map.put("3", null);
        assertThat(map.containsKey("3"), is(true));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testIndexOf() throws Exception {
        assertThat(map.indexOf("test"), is(1));
        assertThat(map.indexOf(null), is(0));
        assertThat(map.indexOf("test3"), is(-1));

	"unsafe"
)

func mapaccess1_faststr(t *maptype, h *hmap, ky string) unsafe.Pointer {
	if raceenabled && h != nil {
		callerpc := getcallerpc()
		racereadpc(unsafe.Pointer(h), callerpc, abi.FuncPCABIInternal(mapaccess1_faststr))
	}
	if h == nil || h.count == 0 {
		return unsafe.Pointer(&zeroVal[0])
	}
	if h.flags&hashWriting != 0 {
		fatal("concurrent map read and map write")
	}
	key := stringStructOf(&ky)
	if h.B == 0 {

)

func mapaccess1_fast32(t *maptype, h *hmap, key uint32) unsafe.Pointer {
	if raceenabled && h != nil {
		callerpc := getcallerpc()
		racereadpc(unsafe.Pointer(h), callerpc, abi.FuncPCABIInternal(mapaccess1_fast32))
	}
	if h == nil || h.count == 0 {
		return unsafe.Pointer(&zeroVal[0])
	}
	if h.flags&hashWriting != 0 {
		fatal("concurrent map read and map write")
	}
	var b *bmap
	if h.B == 0 {