xd := z[2*n : 2*n+n2]
	if subVV(xd, x1, x0) != 0 { // x1-x0
		s = -s
		subVV(xd, x0, x1) // x0-x1
	}

	// compute yd (or the negative value if underflow occurs)
	yd := z[2*n+n2 : 3*n]
	if subVV(yd, y0, y1) != 0 { // y0-y1
		s = -s
		subVV(yd, y1, y0) // y1-y0
	}

	// p = (x1-x0)*(y0-y1) == x1*y0 - x1*y1 - x0*y0 + x0*y1 for s > 0
	// p = (x0-x1)*(y0-y1) == x0*y0 - x0*y1 - x1*y0 + x1*y1 for s < 0
	p := z[n*3:]

		h     uint64
		i, i1 float32
		j, j1 float64
		k     unsafe.Pointer
		l     *uint16
		m     [4]byte
	)
	type x1t struct {
		x uint8
	}
	type y1t struct {
		x1 x1t
		y  uint8
	}
	var x1 x1t
	var y1 y1t

	if unsafe.Sizeof(a) != 1 {
		throw("bad a")
	}
	if unsafe.Sizeof(b) != 1 {
		throw("bad b")
	}
	if unsafe.Sizeof(c) != 2 {
		throw("bad c")
	}

			check.dump("%v: trace() without arguments", call.Pos())
			x.mode = novalue
			break
		}
		var t operand
		x1 := x
		for _, arg := range argList {
			check.rawExpr(nil, x1, arg, nil, false) // permit trace for types, e.g.: new(trace(T))
			check.dump("%v: %s", x1.Pos(), x1)
			x1 = &t // use incoming x only for first argument
		}
		if x.mode == invalid {
			return
		}

			check.dump("%v: trace() without arguments", atPos(call))
			x.mode = novalue
			break
		}
		var t operand
		x1 := x
		for _, arg := range argList {
			check.rawExpr(nil, x1, arg, nil, false) // permit trace for types, e.g.: new(trace(T))
			check.dump("%v: %s", atPos(x1), x1)
			x1 = &t // use incoming x only for first argument
		}
		if x.mode == invalid {
			return
		}

	// and to preserve the optimization that the unbiasing loop almost never runs.
	//
	// We want to compute
	// 	hi, lo := bits.Mul64(r.Uint64(), n)
	// In terms of 32-bit halves, this is:
	// 	x1:x0 := r.Uint64()
	// 	0:hi, lo1:lo0 := bits.Mul64(x1:x0, 0:n)
	// Writing out the multiplication in terms of bits.Mul32 allows
	// using direct hardware instructions and avoiding
	// the computations involving these zeros.
	x := r.Uint64()

		for i := 0; i < rt.NumField(); i++ {
			t.Logf("%+v\n", rt.Field(i))
		}
	}
}

// issue 7786

func f() {
	var x1 *C.typedef_test7786
	var x2 *C.struct_test7786
	x1 = x2
	x2 = x1
	C.f7786(x1)
	C.f7786(x2)
	C.g7786(x1)
	C.g7786(x2)

	var b1 *C.typedef_body7786
	var b2 *C.struct_body7786
	b1 = b2
	b2 = b1
	C.b7786(b1)
	C.b7786(b2)

    private InstantiableFactoryMethodChosen(String name) {
      this.name = name;
    }

    public InstantiableFactoryMethodChosen(NotInstantiable x) {
      checkNotNull(x);
      this.name = "x1";
    }

    public static InstantiableFactoryMethodChosen create(NotInstantiable x) {
      return new InstantiableFactoryMethodChosen(x);
    }

			x0 := p.getConstant(prog, op, &a[0])
			x1 := p.getConstant(prog, op, &a[1])
			x2 := int64(p.getRegister(prog, op, &a[2]))
			x3 := int64(p.getRegister(prog, op, &a[3]))
			x4 := int64(p.getRegister(prog, op, &a[4]))
			x5 := p.getConstant(prog, op, &a[5])
			// Cond is handled specially for this instruction.
			offset, MRC, ok := arch.ARMMRCOffset(op, cond, x0, x1, x2, x3, x4, x5)
			if !ok {

	runGo("tool", "compile", "-importcfg="+importcfgfile, "-symabis", "symabis", "-p=main", "-o", "x1.o", "main.go")
	runGo("tool", "asm", "-p=main", "-o", "x2.o", "x.s")
	run(cc, append(cflags, "-c", "-o", "x3.o", "x.c")...)
	runGo("tool", "pack", "c", "x.a", "x1.o", "x2.o", "x3.o")

	// Now attempt to link using the internal linker.