1; RUN: opt < %s -instcombine -S | not grep "sub i32 0"
2; PR2330
3
4define i32 @foo(i32 %a) nounwind {
5entry:
6  %A = sub i32 5, %a
7  %B = and i32 %A, 2
8  ret i32 %B
9}
10