- (move result null-tn))
- ((and star (= num 1))
- (move result (tn-ref-tn things)))
- (t
- (macrolet
- ((store-car (tn list &optional (slot cons-car-slot))
- `(let ((reg
- (sc-case ,tn
- ((any-reg descriptor-reg) ,tn)
- (zero zero-tn)
- (null null-tn)
- (control-stack
- (load-stack-tn temp ,tn)
- temp))))
- (storew reg ,list ,slot list-pointer-lowtag))))
- (let ((cons-cells (if star (1- num) num)))
- (pseudo-atomic (pa-flag
- :extra (* (pad-data-block cons-size)
- cons-cells))
- (inst or res alloc-tn list-pointer-lowtag)
- (move ptr res)
- (dotimes (i (1- cons-cells))
- (store-car (tn-ref-tn things) ptr)
- (setf things (tn-ref-across things))
- (inst addu ptr ptr (pad-data-block cons-size))
- (storew ptr ptr
- (- cons-cdr-slot cons-size)
- list-pointer-lowtag))
- (store-car (tn-ref-tn things) ptr)
- (cond (star
- (setf things (tn-ref-across things))
- (store-car (tn-ref-tn things) ptr cons-cdr-slot))
- (t
- (storew null-tn ptr
- cons-cdr-slot list-pointer-lowtag)))
- (aver (null (tn-ref-across things)))
- (move result res))))))))
+ (move result null-tn))
+ ((and star (= num 1))
+ (move result (tn-ref-tn things)))
+ (t
+ (macrolet
+ ((store-car (tn list &optional (slot cons-car-slot))
+ `(let ((reg
+ (sc-case ,tn
+ ((any-reg descriptor-reg zero null)
+ ,tn)
+ (control-stack
+ (load-stack-tn temp ,tn)
+ temp))))
+ (storew reg ,list ,slot list-pointer-lowtag))))
+ (let* ((dx-p (node-stack-allocate-p node))
+ (cons-cells (if star (1- num) num))
+ (alloc (* (pad-data-block cons-size) cons-cells)))
+ (pseudo-atomic (pa-flag :extra (if dx-p 0 alloc))
+ (when dx-p
+ (align-csp res))
+ (inst srl res (if dx-p csp-tn alloc-tn) n-lowtag-bits)
+ (inst sll res n-lowtag-bits)
+ (inst or res list-pointer-lowtag)
+ (when dx-p
+ (inst addu csp-tn alloc))
+ (move ptr res)
+ (dotimes (i (1- cons-cells))
+ (store-car (tn-ref-tn things) ptr)
+ (setf things (tn-ref-across things))
+ (inst addu ptr ptr (pad-data-block cons-size))
+ (storew ptr ptr
+ (- cons-cdr-slot cons-size)
+ list-pointer-lowtag))
+ (store-car (tn-ref-tn things) ptr)
+ (cond (star
+ (setf things (tn-ref-across things))
+ (store-car (tn-ref-tn things) ptr cons-cdr-slot))
+ (t
+ (storew null-tn ptr
+ cons-cdr-slot list-pointer-lowtag)))
+ (aver (null (tn-ref-across things)))
+ (move result res))))))))