| ; RUN: opt < %s -instcombine -S | grep icmp | |
| ; PR1646 | |
| @__gthrw_pthread_cancel = weak alias i32 (i32), 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] | |
| define weak i32 @pthread_cancel(i32) { | |
| ret i32 0 | |
| } | |
| define i1 @__gthread_active_p() { | |
| entry: | |
| %tmp1 = load i8*, i8** @__gthread_active_ptr.5335, align 4 ; <i8*> [#uses=1] | |
| %tmp2 = icmp ne i8* %tmp1, null ; <i1> [#uses=1] | |
| ret i1 %tmp2 | |
| } |