index offset &optional setter-p)
(multiple-value-bind (func index-args) (extract-fun-args index '(+ -) 2)
(destructuring-bind (x constant) index-args
- (declare (ignorable x))
- (unless (constant-lvar-p constant)
+ (unless (and (constant-lvar-p constant)
+ ;; we lose if the remaining argument isn't a fixnum
+ (csubtypep (lvar-type x) (specifier-type 'fixnum)))
(give-up-ir1-transform))
- (let ((value (lvar-value constant)))
+ (let ((value (lvar-value constant))
+ new-offset)
(unless (and (integerp value)
(sb!vm::foldable-constant-offset-p
element-size lowtag data-offset
- (funcall func value (lvar-value offset))))
+ (setf new-offset (funcall func (lvar-value offset)
+ value))))
(give-up-ir1-transform "constant is too large for inlining"))
(splice-fun-args index func 2)
`(lambda (thing index off1 off2 ,@(when setter-p
'(value)))
- (,fun-name thing index (,func off2 off1) ,@(when setter-p
- '(value))))))))
+ (declare (ignore off1 off2))
+ (,fun-name thing index ',new-offset ,@(when setter-p
+ '(value))))))))
#!+(or x86 x86-64)
(deftransform sb!bignum:%bignum-ref-with-offset