smart compilers

[Mark Brader]

Ho hum, all of you are wrong.  The CORRECT optimization for:

	DO 100 I = 1 TO 10
	IF (Y .GT. 0) X(I) = SQRT(Y)
	100 CONTINUE

Is, in Ratfor syntax:

	IF (Y > 0) {
		TEMP = SQRT(Y)
		DO I = 1,10
			X(I) = TEMP
	}
	ELSE
		I = 11

(In some implementations the number 11 will be something else, most
likely 10, but leaving I unchanged is clearly wrong!)

Moral:  This is not only trickier than it looks, it's trickier than that!

Mark Brader