;
; Interesting test case where %tmp1220 = xor i32 %tmp862, %tmp592 and
; %tmp1676 = xor i32 %tmp1634, %tmp1530 have zero demanded bits after
; DAGCombiner optimization pass. These are changed to undef and in turn
; the successor shl(s) become shl undef, 1. This pattern then matches
;
; Interesting test case where %tmp1220 = xor i32 %tmp862, %tmp592 and
; %tmp1676 = xor i32 %tmp1634, %tmp1530 have zero demanded bits after
; DAGCombiner optimization pass. These are changed to undef and in turn
; the successor shl(s) become shl undef, 1. This pattern then matches