| Dan Gohman | 1880092 | 2009-09-11 18:01:28 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -instcombine -S | grep icmp |
| Chris Lattner | 52fe869 | 2007-09-10 23:42:42 +0000 | [diff] [blame] | 2 | ; PR1646 |
| 3 | |
| David Blaikie | 2f40830 | 2015-09-11 03:22:04 +0000 | [diff] [blame] | 4 | @__gthrw_pthread_cancel = weak alias i32 (i32), i32 (i32)* @pthread_cancel ; <i32 (i32)*> [#uses=1] |
| Chris Lattner | 52fe869 | 2007-09-10 23:42:42 +0000 | [diff] [blame] | 5 | @__gthread_active_ptr.5335 = internal constant i8* bitcast (i32 (i32)* @__gthrw_pthread_cancel to i8*) ; <i8**> [#uses=1] |
| Rafael Espindola | f3336bc | 2014-03-12 20:15:49 +0000 | [diff] [blame] | 6 | define weak i32 @pthread_cancel(i32) { |
| 7 | ret i32 0 |
| 8 | } |
| Chris Lattner | 52fe869 | 2007-09-10 23:42:42 +0000 | [diff] [blame] | 9 | |
| 10 | define i1 @__gthread_active_p() { |
| 11 | entry: |
| David Blaikie | a79ac14 | 2015-02-27 21:17:42 +0000 | [diff] [blame] | 12 | %tmp1 = load i8*, i8** @__gthread_active_ptr.5335, align 4 ; <i8*> [#uses=1] |
| Chris Lattner | 52fe869 | 2007-09-10 23:42:42 +0000 | [diff] [blame] | 13 | %tmp2 = icmp ne i8* %tmp1, null ; <i1> [#uses=1] |
| 14 | ret i1 %tmp2 |
| 15 | } |