;; Now with the lock held, see if the symbol's tls index has been
;; set in the meantime.
(loadw target other symbol-tls-index-slot other-pointer-lowtag)
- (inst or target target)
+ (inst test target target)
(inst jmp :ne release-tls-index-lock)
;; Allocate a new tls-index.
(load-symbol-value target *free-tls-index*)