// in the caller's stack frame. These stubs write the args into that stack space and
// then tail call to the corresponding runtime handler.
// The tail call makes these stubs disappear in backtraces.
TEXT runtime·panicIndex<ABIInternal>(SB),NOSPLIT,$0-16
	MOVV	R20, R4
	MOVV	R21, R5
	JMP	runtime·goPanicIndex<ABIInternal>(SB)
TEXT runtime·panicIndexU<ABIInternal>(SB),NOSPLIT,$0-16
	MOVV	R20, R4

// in the caller's stack frame. These stubs write the args into that stack space and
// then tail call to the corresponding runtime handler.
// The tail call makes these stubs disappear in backtraces.
TEXT runtime·panicIndex(SB),NOSPLIT,$0-8
	MOVW	R1, x+0(FP)
	MOVW	R2, y+4(FP)
	JMP	runtime·goPanicIndex(SB)
TEXT runtime·panicIndexU(SB),NOSPLIT,$0-8
	MOVW	R1, x+0(FP)
	MOVW	R2, y+4(FP)

          K entryKey = e.getKey();
          if (e.getHash() == hash
              && entryKey != null
              && map.keyEquivalence.equivalent(key, entryKey)) {
            // If the value disappeared, this entry is partially collected,
            // and we should pretend like it doesn't exist.
            V entryValue = e.getValue();
            if (entryValue == null) {
              if (isCollected(e)) {

          K entryKey = e.getKey();
          if (e.getHash() == hash
              && entryKey != null
              && map.keyEquivalence.equivalent(key, entryKey)) {
            // If the value disappeared, this entry is partially collected,
            // and we should pretend like it doesn't exist.
            V entryValue = e.getValue();
            if (entryValue == null) {
              if (isCollected(e)) {

// in the caller's stack frame. These stubs write the args into that stack space and
// then tail call to the corresponding runtime handler.
// The tail call makes these stubs disappear in backtraces.
TEXT runtime·panicIndex(SB),NOSPLIT,$0-8
	MOVW	R0, x+0(FP)
	MOVW	R1, y+4(FP)
	JMP	runtime·goPanicIndex(SB)
TEXT runtime·panicIndexU(SB),NOSPLIT,$0-8
	MOVW	R0, x+0(FP)
	MOVW	R1, y+4(FP)

			t.Error("wrong sign")
		}
	}
}

func testMapNan(t *testing.T, m map[float64]int) {
	if len(m) != 3 {
		t.Error("length wrong")
	}
	s := 0
	for k, v := range m {
		if k == k {
			t.Error("nan disappeared")
		}
		if (v & (v - 1)) != 0 {
			t.Error("value wrong")
		}
		s |= v
	}
	if s != 7 {
		t.Error("values wrong")
	}
}

// nan is a good test because nan != nan, and nan has

// in the caller's stack frame. These stubs write the args into that stack space and
// then tail call to the corresponding runtime handler.
// The tail call makes these stubs disappear in backtraces.
TEXT runtime·panicIndex(SB),NOSPLIT,$0-8
	MOVL	AX, x+0(FP)
	MOVL	CX, y+4(FP)
	JMP	runtime·goPanicIndex(SB)
TEXT runtime·panicIndexU(SB),NOSPLIT,$0-8
	MOVL	AX, x+0(FP)
	MOVL	CX, y+4(FP)

// in the caller's stack frame. These stubs write the args into that stack space and
// then tail call to the corresponding runtime handler.
// The tail call makes these stubs disappear in backtraces.
TEXT runtime·panicIndex<ABIInternal>(SB),NOSPLIT,$0-16
	JMP	runtime·goPanicIndex<ABIInternal>(SB)
TEXT runtime·panicIndexU<ABIInternal>(SB),NOSPLIT,$0-16
	JMP	runtime·goPanicIndexU<ABIInternal>(SB)

// in the caller's stack frame. These stubs write the args into that stack space and
// then tail call to the corresponding runtime handler.
// The tail call makes these stubs disappear in backtraces.
//
// Defined as ABIInternal since the compiler generates ABIInternal
// calls to it directly and it does not use the stack-based Go ABI.
TEXT runtime·panicIndex<ABIInternal>(SB),NOSPLIT,$0-16

            V entryValue = valueReference.get();
            if (entryValue == null) {
              if (valueReference.isActive()) {
                // If the value disappeared, this entry is partially collected.
                int newCount = this.count - 1;
                ++modCount;
                ReferenceEntry<K, V> newFirst =
                    removeValueFromChain(