1; PR3874 2; RUN: opt < %s -instcombine | llvm-dis 3 define i1 @test(i32 %x) { 4 %A = lshr i32 3968, %x 5 %B = and i32 %A, 1 6 %C = icmp eq i32 %B, 0 7 ret i1 %C 8 } 9 10