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; RUN: opt < %s -instcombine -S | grep icmp
; PR1646
@__gthrw_pthread_cancel = alias weak i32 (i32)* @pthread_cancel ; <i32 (i32)*> [#uses=1]
@__gthread_active_ptr.5335 = internal constant i8* bitcast (i32 (i32)* @__gthrw_pthread_cancel to i8*) ; <i8**> [#uses=1]
declare extern_weak i32 @pthread_cancel(i32)
define i1 @__gthread_active_p() {
entry:
%tmp1 = load i8** @__gthread_active_ptr.5335, align 4 ; <i8*> [#uses=1]
%tmp2 = icmp ne i8* %tmp1, null ; <i1> [#uses=1]
ret i1 %tmp2
}
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