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