rather than either constant-folding or manipulating NIL-VALUE or
NULL-TN directly.
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-#19
- (let ((dx (if (foo)
- (list x)
- (list y z))))
- (declare (dynamic-extent dx))
- ...)
-
-DX is not allocated on stack.
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#20
(defun-with-dx foo (x)
(flet ((make (x)
Result of MAKE is not stack allocated, which means that
stack-allocation of structures is impossible.
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-#21
-(defun-with-dx foo ()
- (let ((dx (list (list 1 2) (list 3 4))))
- (declare (dynamic-extent dx))
- ...))
-
-External list in DX is allocated on stack, but internal are not.
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#22
IR2 does not perform unused code flushing.
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