(declare (type (unsigned-byte 32) n)
(optimize (speed 3) (safety 0)))
(sb!alien:sap-alien (sb!vm::current-thread-offset-sap
- (+ sb!vm::thread-interrupt-contexts-offset n))
+ (+ sb!vm::thread-interrupt-contexts-offset
+ #!-alpha n
+ #!+alpha (* 2 n)))
(* os-context-t)))
#!+(or x86 x86-64)