FMADDD	F11, F20, F23, F12	// ecd22508
	FMSUBF	F3, F11, F31, F22	// f6af5108
	FMSUBD	F13, F30, F9, F15	// 2ff96608
	FNMADDF	F27, F11, F5, F21	// b5ac9d08
	FNMADDD	F29, F14, F27, F6	// 66bbae08
	FNMSUBF	F17, F8, F12, F8	// 88a1d808
	FNMSUBD	F29, F21, F3, F17	// 71d4ee08
	FMADDF	F2, F14, F9		// 29391108
	FMADDD	F11, F20, F23		// f7d22508
	FMSUBF	F3, F11, F31		// ffaf5108
	FMSUBD	F13, F30, F9		// 29f96608

}

switch x := f(); {  // missing switch expression means "true"
case x < 0: return -x
default: return x
}

switch {
case x < y: f1()
case x < z: f2()
case x == 4: f3()
}
</pre>

<p>
Implementation restriction: A compiler may disallow multiple case
expressions evaluating to the same constant.
For instance, the current compilers disallow duplicate integer,